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• obj-c classes and sub classes (Cocos2d) conversion

  - by Lewis

  Hi I'm using this version of cocos2d: https://github.com/krzysztofzablocki/CCNode-SFGestureRecognizers Which supports the UIGestureRecognizer within a CCLayer in a cocos2d scene like so: @interface HelloWorldLayer : CCLayer <UIGestureRecognizerDelegate> { } Now I want to make this custom gesture work within the scene, attaching it to a sprite in cocos2d: #import <Foundation/Foundation.h> #import <UIKit/UIGestureRecognizerSubclass.h> @protocol OneFingerRotationGestureRecognizerDelegate <NSObject> @optional - (void) rotation: (CGFloat) angle; - (void) finalAngle: (CGFloat) angle; @end @interface OneFingerRotationGestureRecognizer : UIGestureRecognizer { CGPoint midPoint; CGFloat innerRadius; CGFloat outerRadius; CGFloat cumulatedAngle; id <OneFingerRotationGestureRecognizerDelegate> target; } - (id) initWithMidPoint: (CGPoint) midPoint innerRadius: (CGFloat) innerRadius outerRadius: (CGFloat) outerRadius target: (id) target; - (void)reset; - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event; - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event; - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event; - (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event; @end #include <math.h> #import "OneFingerRotationGestureRecognizer.h" @implementation OneFingerRotationGestureRecognizer // private helper functions CGFloat distanceBetweenPoints(CGPoint point1, CGPoint point2); CGFloat angleBetweenLinesInDegrees(CGPoint beginLineA, CGPoint endLineA, CGPoint beginLineB, CGPoint endLineB); - (id) initWithMidPoint: (CGPoint) _midPoint innerRadius: (CGFloat) _innerRadius outerRadius: (CGFloat) _outerRadius target: (id <OneFingerRotationGestureRecognizerDelegate>) _target { if ((self = [super initWithTarget: _target action: nil])) { midPoint = _midPoint; innerRadius = _innerRadius; outerRadius = _outerRadius; target = _target; } return self; } /** Calculates the distance between point1 and point 2. */ CGFloat distanceBetweenPoints(CGPoint point1, CGPoint point2) { CGFloat dx = point1.x - point2.x; CGFloat dy = point1.y - point2.y; return sqrt(dx*dx + dy*dy); } CGFloat angleBetweenLinesInDegrees(CGPoint beginLineA, CGPoint endLineA, CGPoint beginLineB, CGPoint endLineB) { CGFloat a = endLineA.x - beginLineA.x; CGFloat b = endLineA.y - beginLineA.y; CGFloat c = endLineB.x - beginLineB.x; CGFloat d = endLineB.y - beginLineB.y; CGFloat atanA = atan2(a, b); CGFloat atanB = atan2(c, d); // convert radiants to degrees return (atanA - atanB) * 180 / M_PI; } #pragma mark - UIGestureRecognizer implementation - (void)reset { [super reset]; cumulatedAngle = 0; } - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { [super touchesBegan:touches withEvent:event]; if ([touches count] != 1) { self.state = UIGestureRecognizerStateFailed; return; } } - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { [super touchesMoved:touches withEvent:event]; if (self.state == UIGestureRecognizerStateFailed) return; CGPoint nowPoint = [[touches anyObject] locationInView: self.view]; CGPoint prevPoint = [[touches anyObject] previousLocationInView: self.view]; // make sure the new point is within the area CGFloat distance = distanceBetweenPoints(midPoint, nowPoint); if ( innerRadius <= distance && distance <= outerRadius) { // calculate rotation angle between two points CGFloat angle = angleBetweenLinesInDegrees(midPoint, prevPoint, midPoint, nowPoint); // fix value, if the 12 o'clock position is between prevPoint and nowPoint if (angle > 180) { angle -= 360; } else if (angle < -180) { angle += 360; } // sum up single steps cumulatedAngle += angle; // call delegate if ([target respondsToSelector: @selector(rotation:)]) { [target rotation:angle]; } } else { // finger moved outside the area self.state = UIGestureRecognizerStateFailed; } } - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { [super touchesEnded:touches withEvent:event]; if (self.state == UIGestureRecognizerStatePossible) { self.state = UIGestureRecognizerStateRecognized; if ([target respondsToSelector: @selector(finalAngle:)]) { [target finalAngle:cumulatedAngle]; } } else { self.state = UIGestureRecognizerStateFailed; } cumulatedAngle = 0; } - (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event { [super touchesCancelled:touches withEvent:event]; self.state = UIGestureRecognizerStateFailed; cumulatedAngle = 0; } @end Header file for view controller: #import "OneFingerRotationGestureRecognizer.h" @interface OneFingerRotationGestureViewController : UIViewController <OneFingerRotationGestureRecognizerDelegate> @property (nonatomic, strong) IBOutlet UIImageView *image; @property (nonatomic, strong) IBOutlet UITextField *textDisplay; @end then this is in the .m file: gestureRecognizer = [[OneFingerRotationGestureRecognizer alloc] initWithMidPoint: midPoint innerRadius: outRadius / 3 outerRadius: outRadius target: self]; [self.view addGestureRecognizer: gestureRecognizer]; Now my question is, is it possible to add this custom gesture into the cocos2d project found on that github, and if so, what do I need to change in the OneFingerRotationGestureRecognizerDelegate to get it to work within cocos2d. Because at the minute it is setup in a standard iOS project and not a cocos2d project and I do not know enough about UIViews and classing/ sub classing in obj-c to get this to work. Also it seems to inherit from a UIView where cocos2d uses CCLayer. Kind regards, Lewis. I also realise I may have not included enough code from the custom gesture project for readers to interpret it fully, so the full project can be found here: https://github.com/melle/OneFingerRotationGestureDemo

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• Master Page: Dynamically Adding Rows in ASP Table on Button Click event

  - by Vincent Maverick Durano

  In my previous post here, I wrote an example that demonstrates how are we going to generate table rows dynamically using ASP Table on click of the Button control. Now based on some comments in my previous example and in the forums they wanted to implement it within Masterpage. Unfortunately the code in my previous example doesn't work in Masterpage for the following main reasons: The Table is dynamically added within the Form tag and so the TextBox control will not be generated correcty in the page. The data will not be retained on each and every postbacks because the SetPreviousData() method is looking for the Table element within the Page and not on the MasterPage. The Request.Form key value should be set correctly since all controls within the master page are prefixed with the naming containter ID to prevent duplicate ids on the final rendered HTML. For example the TextBox control with the ID of TextBoxRow will turn to ID to this ctl00$MainBody$TextBoxRow. In order for the previous example to work within Masterpage then we will have to correct those three main reasons above and this post will guide you how to correct it. Suppose we have this content page declaration below:   <asp:Content ID="Content1" ContentPlaceHolderID="MainHead" Runat="Server"> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="MainBody" Runat="Server"> <asp:PlaceHolder ID="PlaceHolder1" runat="server"> <asp:Button ID="BTNAdd" runat="server" Text="Add New Row" OnClick="BTNAdd_Click" /> </asp:PlaceHolder> </asp:Content> As you notice I've added a PlaceHolder control within the MainBody ContentPlaceHolder. This is because we are going to generate the Table in the PlaceHolder instead of generating it within the Form element. Now since issue #1 is already corrected then let's proceed to the code beind part. Here are the full code blocks below:     using System; using System.Web.UI; using System.Web.UI.WebControls; public partial class DynamicControlDemo : System.Web.UI.Page { private int numOfRows = 1; protected void Page_Load(object sender, EventArgs e) { //Generate the Rows on Initial Load if (!Page.IsPostBack) { GenerateTable(numOfRows); } } protected void BTNAdd_Click(object sender, EventArgs e) { if (ViewState["RowsCount"] != null) { numOfRows = Convert.ToInt32(ViewState["RowsCount"].ToString()); GenerateTable(numOfRows); } } private void SetPreviousData(int rowsCount, int colsCount) { Table table = (Table)this.Page.Master.FindControl("MainBody").FindControl("Table1"); // **** if (table != null) { for (int i = 0; i < rowsCount; i++) { for (int j = 0; j < colsCount; j++) { //Extracting the Dynamic Controls from the Table TextBox tb = (TextBox)table.Rows[i].Cells[j].FindControl("TextBoxRow_" + i + "Col_" + j); //Use Request object for getting the previous data of the dynamic textbox tb.Text = Request.Form["ctl00$MainBody$TextBoxRow_" + i + "Col_" + j];//***** } } } } private void GenerateTable(int rowsCount) { //Creat the Table and Add it to the Page Table table = new Table(); table.ID = "Table1"; PlaceHolder1.Controls.Add(table);//****** //The number of Columns to be generated const int colsCount = 3;//You can changed the value of 3 based on you requirements // Now iterate through the table and add your controls for (int i = 0; i < rowsCount; i++) { TableRow row = new TableRow(); for (int j = 0; j < colsCount; j++) { TableCell cell = new TableCell(); TextBox tb = new TextBox(); // Set a unique ID for each TextBox added tb.ID = "TextBoxRow_" + i + "Col_" + j; // Add the control to the TableCell cell.Controls.Add(tb); // Add the TableCell to the TableRow row.Cells.Add(cell); } // And finally, add the TableRow to the Table table.Rows.Add(row); } //Set Previous Data on PostBacks SetPreviousData(rowsCount, colsCount); //Sore the current Rows Count in ViewState rowsCount++; ViewState["RowsCount"] = rowsCount; } }   As you observed the code is pretty much similar to the previous example except for the highlighted lines above. That's it! I hope someone find this post usefu! Technorati Tags: Dynamic Controls,ASP.NET,C#,Master Page

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• 2D metaball liquid effect - how to feed output of one rendering pass as input to another shader

  - by Guye Incognito

  I'm attempting to make a shader for unity3d web project. I want to implement something like in the great answer by DMGregory in this question. in order to achieve a final look something like this.. Its metaballs with specular and shading. The steps to make this shader are. 1. Convert the feathered blobs into a heightmap. 2. Generate a normalmap from the heightmap 3. Feed the normal map and height map into a standard unity shader, for instance transparent parallax specular. I pretty much have all the pieces I need assembled but I am new to shaders and need help putting them together I can generate a heightmap from the blobs using some fragment shader code I wrote (I'm just using the red channel here cus i dont know if you can access the brightness) half4 frag (v2f i) : COLOR{ half4 texcol,finalColor; texcol = tex2D (_MainTex, i.uv); finalColor=_MyColor; if(texcol.r<_botmcut) { finalColor.r= 0; } else if((texcol.r>_topcut)) { finalColor.r= 0; } else { float r = _topcut-_botmcut; float xpos = _topcut - texcol.r; finalColor.r= (_botmcut + sqrt((xpos*xpos)-(r*r)))/_constant; } return finalColor; } turns these blobs.. into this heightmap Also I've found some CG code that generates a normal map from a height map. The bit of code that makes the normal map from finite differences is here void surf (Input IN, inout SurfaceOutput o) { o.Albedo = fixed3(0.5); float3 normal = UnpackNormal(tex2D(_BumpMap, IN.uv_MainTex)); float me = tex2D(_HeightMap,IN.uv_MainTex).x; float n = tex2D(_HeightMap,float2(IN.uv_MainTex.x,IN.uv_MainTex.y+1.0/_HeightmapDimY)).x; float s = tex2D(_HeightMap,float2(IN.uv_MainTex.x,IN.uv_MainTex.y-1.0/_HeightmapDimY)).x; float e = tex2D(_HeightMap,float2(IN.uv_MainTex.x-1.0/_HeightmapDimX,IN.uv_MainTex.y)).x; float w = tex2D(_HeightMap,float2(IN.uv_MainTex.x+1.0/_HeightmapDimX,IN.uv_MainTex.y)).x; float3 norm = normal; float3 temp = norm; //a temporary vector that is not parallel to norm if(norm.x==1) temp.y+=0.5; else temp.x+=0.5; //form a basis with norm being one of the axes: float3 perp1 = normalize(cross(norm,temp)); float3 perp2 = normalize(cross(norm,perp1)); //use the basis to move the normal in its own space by the offset float3 normalOffset = -_HeightmapStrength * ( ( (n-me) - (s-me) ) * perp1 + ( ( e - me ) - ( w - me ) ) * perp2 ); norm += normalOffset; norm = normalize(norm); o.Normal = norm; } Also here is the built-in transparent parallax specular shader for unity. Shader "Transparent/Parallax Specular" { Properties { _Color ("Main Color", Color) = (1,1,1,1) _SpecColor ("Specular Color", Color) = (0.5, 0.5, 0.5, 0) _Shininess ("Shininess", Range (0.01, 1)) = 0.078125 _Parallax ("Height", Range (0.005, 0.08)) = 0.02 _MainTex ("Base (RGB) TransGloss (A)", 2D) = "white" {} _BumpMap ("Normalmap", 2D) = "bump" {} _ParallaxMap ("Heightmap (A)", 2D) = "black" {} } SubShader { Tags {"Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent"} LOD 600 CGPROGRAM #pragma surface surf BlinnPhong alpha #pragma exclude_renderers flash sampler2D _MainTex; sampler2D _BumpMap; sampler2D _ParallaxMap; fixed4 _Color; half _Shininess; float _Parallax; struct Input { float2 uv_MainTex; float2 uv_BumpMap; float3 viewDir; }; void surf (Input IN, inout SurfaceOutput o) { half h = tex2D (_ParallaxMap, IN.uv_BumpMap).w; float2 offset = ParallaxOffset (h, _Parallax, IN.viewDir); IN.uv_MainTex += offset; IN.uv_BumpMap += offset; fixed4 tex = tex2D(_MainTex, IN.uv_MainTex); o.Albedo = tex.rgb * _Color.rgb; o.Gloss = tex.a; o.Alpha = tex.a * _Color.a; o.Specular = _Shininess; o.Normal = UnpackNormal(tex2D(_BumpMap, IN.uv_BumpMap)); } ENDCG } FallBack "Transparent/Bumped Specular" }

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• Session Report - Java on the Raspberry Pi

  - by Janice J. Heiss

  On mid-day Wednesday, the always colorful Oracle Evangelist Simon Ritter demonstrated Java on the Raspberry Pi at his session, “Do You Like Coffee with Your Dessert?”. The Raspberry Pi consists of a credit card-sized single-board computer developed in the UK with the intention of stimulating the teaching of basic computer science in schools. “I don't think there is a single feature that makes the Raspberry Pi significant,” observed Ritter, “but a combination of things really makes it stand out. First, it's $35 for what is effectively a completely usable computer. You do have to add a power supply, SD card for storage and maybe a screen, keyboard and mouse, but this is still way cheaper than a typical PC. The choice of an ARM (Advanced RISC Machine and Acorn RISC Machine) processor is noteworthy, because it avoids problems like cooling (no heat sink or fan) and can use a USB power brick. When you add in the enormous community support, it offers a great platform for teaching everyone about computing.”Some 200 enthusiastic attendees were present at the session which had the feel of Simon Ritter sharing a fun toy with friends. The main point of the session was to show what Oracle was doing to support Java on the Raspberry Pi in a way that is entertaining and fun. Ritter pointed out that, in addition to being great for teaching, it’s an excellent introduction to the ARM architecture, and runs well with Java and will get better once it has official hard float support. The possibilities are vast.Ritter explained that the Raspberry Pi Project started in 2006 with the goal of devising a computer to inspire children; it drew inspiration from the BBC Micro literacy project of 1981 that produced a series of microcomputers created by the Acorn Computer company. It was officially launched on February 29, 2012, with a first production of 10,000 boards. There were 100,000 pre-orders in one day; currently about 4,000 boards are produced a day. Ritter described the specification as follows:* CPU: ARM 11 core running at 700MHz Broadcom SoC package Can now be overclocked to 1GHz (without breaking the warranty!) * Memory: 256Mb* I/O: HDMI and composite video 2 x USB ports (Model B only) Ethernet (Model B only) Header pins for GPIO, UART, SPI and I2C He took attendees through a brief history of ARM Architecture:* Acorn BBC Micro (6502 based) Not powerful enough for Acorn’s plans for a business computer * Berkeley RISC Project UNIX kernel only used 30% of instruction set of Motorola 68000 More registers, less instructions (Register windows) One chip architecture to come from this was… SPARC * Acorn RISC Machine (ARM) 32-bit data, 26-bit address space, 27 registers First machine was Acorn Archimedes * Spin off from Acorn, Advanced RISC MachinesNext he presented its features:* 32-bit RISC Architecture–  ARM accounts for 75% of embedded 32-bit CPUs today– 6.1 Billion chips sold last year (zero manufactured by ARM)* Abstract architecture and microprocessor core designs– Raspberry Pi is ARM11 using ARMv6 instruction set* Low power consumption– Good for mobile devices– Raspberry Pi can be powered from 700mA 5V only PSU– Raspberry Pi does not require heatsink or fanHe described the current ARM Technology:* ARMv6– ARM 11, ARM Cortex-M* ARMv7– ARM Cortex-A, ARM Cortex-M, ARM Cortex-R* ARMv8 (Announced)– Will support 64-bit data and addressingHe next gave the Java Specifics for ARM: Floating point operations* Despite being an ARMv6 processor it does include an FPU– FPU only became standard as of ARMv7* FPU (Hard Float, or HF) is much faster than a software library* Linux distros and Oracle JVM for ARM assume no HF on ARMv6– Need special build of both– Raspbian distro build now available– Oracle JVM is in the works, release date TBDNot So RISCPerformance Improvements* DSP Enhancements* Jazelle* Thumb / Thumb2 / ThumbEE* Floating Point (VFP)* NEON* Security Enhancements (TrustZone)He spent a few minutes going over the challenges of using Java on the Raspberry Pi and covered:* Sound* Vision * Serial (TTL UART)* USB* GPIOTo implement sound with Java he pointed out:* Sound drivers are now included in new distros* Java Sound API– Remember to add audio to user’s groups– Some bits work, others not so much* Playing (the right format) WAV file works* Using MIDI hangs trying to open a synthesizer* FreeTTS text-to-speech– Should work once sound works properlyHe turned to JavaFX on the Raspberry Pi:* Currently internal builds only– Will be released as technology preview soon* Work involves optimal implementation of Prism graphics engine– X11?* Once the JavaFX implementation is completed there will be little of concern to developers-- It’s just Java (WORA). He explained the basis of the Serial Port:* UART provides TTL level signals (3.3V)* RS-232 uses 12V signals* Use MAX3232 chip to convert* Use this for access to serial consoleHe summarized his key points. The Raspberry Pi is a very cool (and cheap) computer that is great for teaching, a great introduction to ARM that works very well with Java and will work better in the future. The opportunities are limitless. For further info, check out, Raspberry Pi User Guide by Eben Upton and Gareth Halfacree. From there, Ritter tried out several fun demos, some of which worked better than others, but all of which were greeted with considerable enthusiasm and support and good humor (even when he ran into some glitches).  All in all, this was a fun and lively session.

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• WIF-less claim extraction from ACS: SWT

  - by Elton Stoneman

  WIF with SAML is solid and flexible, but unless you need the power, it can be overkill for simple claim assertion, and in the REST world WIF doesn’t have support for the latest token formats.  Simple Web Token (SWT) may not be around forever, but while it's here it's a nice easy format which you can manipulate in .NET without having to go down the WIF route. Assuming you have set up a Relying Party in ACS, specifying SWT as the token format: When ACS redirects to your login page, it will POST the SWT in the first form variable. It comes through in the BinarySecurityToken element of a RequestSecurityTokenResponse XML payload , the SWT type is specified with a TokenType of http://schemas.xmlsoap.org/ws/2009/11/swt-token-profile-1.0 : <t:RequestSecurityTokenResponse xmlns:t="http://schemas.xmlsoap.org/ws/2005/02/trust">   <t:Lifetime>     <wsu:Created xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">2012-08-31T07:31:18.655Z</wsu:Created>     <wsu:Expires xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">2012-08-31T09:11:18.655Z</wsu:Expires>   </t:Lifetime>   <wsp:AppliesTo xmlns:wsp="http://schemas.xmlsoap.org/ws/2004/09/policy">     <EndpointReference xmlns="http://www.w3.org/2005/08/addressing">       <Address>http://localhost/x.y.z</Address>     </EndpointReference>   </wsp:AppliesTo>   <t:RequestedSecurityToken>     <wsse:BinarySecurityToken wsu:Id="uuid:fc8d3332-d501-4bb0-84ba-d31aa95a1a6c" ValueType="http://schemas.xmlsoap.org/ws/2009/11/swt-token-profile-1.0" EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"> [ base64string ] </wsse:BinarySecurityToken>   </t:RequestedSecurityToken>   <t:TokenType>http://schemas.xmlsoap.org/ws/2009/11/swt-token-profile-1.0</t:TokenType>   <t:RequestType>http://schemas.xmlsoap.org/ws/2005/02/trust/Issue</t:RequestType>   <t:KeyType>http://schemas.xmlsoap.org/ws/2005/05/identity/NoProofKey</t:KeyType> </t:RequestSecurityTokenResponse> Reading the SWT is as simple as base-64 decoding, then URL-decoding the element value:     var wrappedToken = XDocument.Parse(HttpContext.Current.Request.Form[1]);     var binaryToken = wrappedToken.Root.Descendants("{http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd}BinarySecurityToken").First();     var tokenBytes = Convert.FromBase64String(binaryToken.Value);     var token = Encoding.UTF8.GetString(tokenBytes);     var tokenType = wrappedToken.Root.Descendants("{http://schemas.xmlsoap.org/ws/2005/02/trust}TokenType").First().Value; The decoded token contains the claims as key/value pairs, along with the issuer, audience (ACS realm), expiry date and an HMAC hash, which are in query string format. Separate them on the ampersand, and you can write out the claim values in your logged-in page:     var decoded = HttpUtility.UrlDecode(token);     foreach (var part in decoded.Split('&'))     {         Response.Write("<pre>" + part + "</pre><br/>");     } - which will produce something like this: http://schemas.microsoft.com/ws/2008/06/identity/claims/authenticationinstant=2012-08-31T06:57:01.855Z http://schemas.microsoft.com/ws/2008/06/identity/claims/authenticationmethod=http://schemas.microsoft.com/ws/2008/06/identity/authenticationmethod/windows http://schemas.microsoft.com/ws/2008/06/identity/claims/windowsaccountname=XYZ http://schemas.xmlsoap.org/ws/2005/05/identity/claims/[email protected] http://schemas.xmlsoap.org/ws/2005/05/identity/claims/[email protected] http://schemas.microsoft.com/accesscontrolservice/2010/07/claims/identityprovider=http://fs.svc.xyz.com/adfs/services/trust Audience=http://localhost/x.y.z ExpiresOn=1346402225 Issuer=https://x-y-z.accesscontrol.windows.net/ HMACSHA256=oDCeEDDAWEC8x+yBnTaCLnzp4L6jI0Z/xNK95PdZTts= The HMAC hash lets you validate the token to ensure it hasn’t been tampered with. You'll need the token signing key from ACS, then you can re-sign the token and compare hashes. There's a full implementation of an SWT parser and validator here: How To Request SWT Token From ACS And How To Validate It At The REST WCF Service Hosted In Windows Azure, and a cut-down claim inspector on my github code gallery: ACS Claim Inspector. Interestingly, ACS lets you have a value for your logged-in page which has no relation to the realm for authentication, so you can put this code into a generic claim inspector page, and set that to be your logged-in page for any relying party where you want to check what's being sent through. Particularly handy with ADFS, when you're modifying the claims provided, and want to quickly see the results.

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• Seven Random Thoughts on JavaOne

  - by HecklerMark

  As most people reading this blog may know, last week was JavaOne. There are a lot of summary/recap articles popping up now, and while I didn't want to just "add to pile", I did want to share a few observations. Disclaimer: I am an Oracle employee, but most of these observations are either externally verifiable or based upon a collection of opinions from Oracle and non-Oracle attendees alike. Anyway, here are a few take-aways: The Java ecosystem is alive and well, with a breadth and depth that is impossible to adequately describe in a short post...or a long post, for that matter. If there is any one area within the Java language or JVM that you would like to - or need to - know more about, it's well-represented at J1. While there are several IDEs that are used to great effect by the developer community, NetBeans is on a roll. I lost count how many sessions mentioned or used NetBeans, but it was by far the dominant IDE in use at J1. As a recent re-convert to NetBeans, I wasn't surprised others liked it so well, only how many. OpenJDK, OpenJFX, etc. Many developers were understandably concerned with the change of sponsorship/leadership when Java creator and longtime steward Sun Microsystems was acquired by Oracle. The read I got from attendees regarding Oracle's stewardship was almost universally positive, and the push for "openness" is deep and wide within the current Java environs. Few would probably have imagined it to be this good, this soon. Someone observed that "Larry (Ellison) is competitive, and he wants to be the best...so if he wants to have a community, it will be the best community on the planet." Like any company, Oracle is bound to make missteps, but leadership seems to be striking an excellent balance between embracing open efforts and innovating in competitive paid offerings. JavaFX (2.x) isn't perfect or comprehensive, but a great many people (myself included) see great potential, are developing for it, and are really excited about where it is and where it may be headed. This is another part of the Java ecosystem that has impressive depth for being so new (JavaFX 1.x aside). If you haven't kicked the tires yet, give it a try! You'll be surprised at how capable and versatile it is, and you'll probably catch yourself smiling while coding again.  :-) JavaEE is everywhere. Not exactly a newsflash, but there is a lot of buzz around EE still/again/anew. Sessions ranged from updated component specs/technologies to Websockets/HTML5, from frameworks to profiles and application servers. Programming "server-side" Java isn't confined to the server (as you no doubt realize), and if you still consider JavaEE a cumbersome beast, you clearly haven't been using the last couple of versions. Download GlassFish or the WebLogic Zip distro (or another JavaEE 6 implementation) and treat yourself. JavaOne is not inexpensive, but to paraphrase an old saying, "If you think that's expensive, you should try ignorance." :-) I suppose it's possible to attend J1 and learn nothing, but you'd have to really work at it! Attending even a single session is bound to expand your horizons and make you approach your code, your problem domain, differently...even if it's a session about something you already know quite well. The various presenters offer vastly different perspectives and challenge you to re-think your own approach(es). And finally, if you think the scheduled sessions are great - and make no mistake, most are clearly outstanding - wait until you see what you pick up from what I like to call the "hallway sessions". Between the presentations, people freely mingle in the hallways, go to lunch and dinner together, and talk. And talk. And talk. Ideas flow freely, sparking other ideas and the "crowdsourcing" of knowledge in a way that is hard to imagine outside of a conference of this magnitude. Consider this the "GO" part of a "BOGO" (Buy One, Get One) offer: you buy the ticket to the "structured" part of JavaOne and get the hallway sessions at no additional charge. They're really that good. If you weren't able to make it to JavaOne this year, you can still watch/listen to the sessions online by visiting the JavaOne course catalog and clicking the media link(s) in the right column - another demonstration of Oracle's commitment to the Java community. But make plans to be there next year to get the full benefit! You'll be glad you did. All the best,Mark P.S. - I didn't mention several other exciting developments in areas like the embedded space and the "internet of things" (M2M), robotics, optimization, and the cloud (among others), but I think you get the idea. JavaOne == brainExpansion;  Hope to see you there next year!

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• Use your own domain email and tired of SPAM? SPAMfighter FTW

  - by Dave Campbell

  I wouldn't post this if I hadn't tried it... and I paid for it myself, so don't anybody be thinking I'm reviewing something someone sent me! Long ago and far away I got very tired of local ISPs and 2nd phone lines and took the plunge and got hooked up to cable... yeah I know the 2nd phone line concept may be hard for everyone to understand, but that's how it was in 'the old days'. To avoid having to change email addresses all the time, I decided to buy a domain name, get minimal hosting, and use that for all email into the house. That way if I changed providers, all the email addresses wouldn't have to change. Of course, about a dozen domains later, I have LOTS of pop email addresses and even an exchange address to my client's server... times have changed. What also has changed is the fact that we get SPAM... 'back in the day' when I was a beta tester for the first ISP in Phoenix, someone tried sending an ad to all of us, and what he got in return for his trouble was a bunch of core dumps that locked up his email... if you don't know what a core dump is, ask your grandfather. But in today's world, we're all much more civilized than that, and as with many things, the criminals seem to have much more rights than we do, so we get inundated with email offering all sorts of wild schemes that you'd have to be brain-dead to accept, but yet... if people weren't accepting them, they'd stop sending them. I keep hoping that survival of the smartest would weed out the mental midgets that respond and then the jumk email stop, but that hasn't happened yet anymore than finding high-quality hearing aids at the checkout line of Safeway because of all the dimwits playing music too loud inside their car... but that's another whole topic and I digress. So what's the solution for all the spam? And I mean *all*... on that old personal email address, I am now getting over 150 spam messages a day! Yes I know that's why God invented the delete key, but I took it on as a challenge, and it's a matter of principle... why should I switch email addresses, or convert from [email protected] to something else, or have all my email filtered through some service just because some A-Hole somewhere has a site up trying to phish Ma & Pa Kettle (ask your grandfather about that too) out of their retirement money? Well... I got an email from my cousin the other day while I was writing yet another email rule, and there was a banner on the bottom of his email that said he was protected by SPAMfighter. SPAMfighter huh.... so I took a look at their site, and found yet one more of the supposed tools to help us. But... I read that they're a Microsoft Gold Partner... and that doesn't come lightly... so I took a gamble and here's what I found: I installed it, and had to do a couple things: 1) SPAMfighter stuffed the SPAMfighter folder into my client's exchange address... I deleted it, made a new SPAMfighter folder where I wanted it to go, then in the SPAMfighter Clients settings for Outlook, I told it to put all spam there. 2) It didn't seem to be doing anything. There's a ribbon button that you can select "Block", and I did that, wondering if I was 'training' it, but it wasn't picking up duplicates 3) I sent email to support, and wrote a post on the forum (not to self: reply to that post). By the time the folks from the home office responded, it was the next day, and first up, SPAMfighter knocked down everything that came through when Outlook opend... two thumbs up! I disabled my 'garbage collection' rule from Outlook, and told Outlook not to use the junk folder thinking it was interfering. 4) Day 2 seemed to go about like Day 1... but I hung in there. 5) Day 3 is now a whole new day... I had left Outlook open and hadn't looked at the PC since sometime late yesterday afternoon, and when I looked this morning, *every bit* of spam was in the SPAMfighter folder!! I'm a new paying customer After watching SPAMfighter work this morning, I've purchased a 1-year license, and I now can sit and watch as emails come in and disappear from my inbox into the SPAMfighter folder. No more continual tweaking of the rules. I've got SPAMfighter set to 'Very Hard' filtering... personally I'd rather pull the few real emails out of the SPAMfighter folder than pull spam out of the real folders. Yes this is simply another way of using the delete key, but you know what? ... it feels good :) Here's a screenshot of the stats after just about 48 hours of being onboard: Note that all the ones blocked by me were during Day 1 and 2... I've blocked none today, and everything is blocked. Stay in the 'Light!

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• useFastClick in JQuery Mobile

  - by Yousef_Jadallah

    Normal 0 false false false EN-US X-NONE AR-SA /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Arial; mso-bidi-theme-font:minor-bidi;} For who want to convert the application from JQM Alpha to JQM Beta 1, needs to bind  click  events to the new vclick one. Click event is working in general browsers butt that is needed for iOS and Android, useFastClick  is (touch + mouse click). Moreover if you have this event alot in your project you can turn useFastClick off in mobileinit event: $(document).bind("mobileinit", function () {             $.mobile.useFastClick = false; });   vclick event is needed to support touch events to make the page changes to happen faster, and to perform the URL hiding. So you need to change something like this  $('btnShow').live("click", function (evt) {   To :  $('btnShow').live("vclick", function (evt) {     For more information : http://jquerymobile.com/test/docs/api/globalconfig.html   Here you can find full example in this case : <!DOCTYPE ><html xmlns="http://www.w3.org/1999/xhtml"><head>    <link rel="stylesheet" href="http://code.jquery.com/mobile/1.0b1/jquery.mobile-1.0b1.min.css" />    <script src="http://code.jquery.com/jquery-1.6.1.min.js"></script>    <script src="http://code.jquery.com/mobile/1.0b1/jquery.mobile-1.0b1.min.js"></script>    <script type="text/javascript">     //Here you need to use vclick instead of click event         $('ul[id="MylistView"] a').live("vclick", function (evt) {            alert('list click');        });      </script>    <title></title></head><body>    <div id="FirstPage" data-role="page" data-theme="b">        <div data-role="header">            <h1>                Page Title</h1>        </div>        <div data-role="content">            <ul id="MylistView" data-role="listview" data-theme="g">                <li><a href="#SecondPage">Acura</a></li>                <li><a href="#SecondPage">Audi</a></li>                <li><a href="#SecondPage">BMW</a></li>            </ul>        </div>        <div data-role="footer">            <h4>                Page Footer</h4>        </div>    </div>    <div id="SecondPage" data-role="page" data-theme="b"   >        <div data-role="header" >            <h1>                Page Title</h1>        </div>        Second Page        <div data-role="footer">            <h4>                Page Footer</h4>        </div>    </div></body></html>     Hope that helps.

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• Existential CAML - does an item exist?

  - by PointsToShare

  © 2011 By: Dov Trietsch. All rights reserved More CAML and existence. In “SharePoint List Issues” and “Passing the CAML thru the EY of the NEEDL we saw how to use CAML to return a subset of a list and also how to check the existence of lists, fields, defaults, and values.   Here is a general function that may be used to get a subset of a list by comparing a “text” type field to a given value.  The function is pretty smart. It can be used to check existence or to return a collection of items that may be further processed. It handles non existing fields and replaces them with the ubiquitous “Title”, but only once!  /// Build an SPQuery that returns a selected set of columns from a List /// titleField must be a "Text" type field /// When the titleField parameter is empty ("") "Title" is assumed /// When the title parameter is empty ("") All is assumed /// When the columnNames parameter is null, the query returns all the fields /// When the rowLimit parameter is 0, the query return all the items. /// with a non-zero, the query returns at most rowLimits /// /// usage: to check if an item titled "Blah" exists in your list, do: /// colNames = {"Title"} /// col = GetListItemColumnByTitle(myList, "", "Blah", colNames, 1) /// Check the col.Count. if > 0 the item exists and is in the collection private static SPListItemCollection GetListItemColumnByTitle(SPList list, string titleField, string title, string[] columnNames, uint rowLimit) {   try   {     char QT = Convert.ToChar((int)34);     SPQuery query = new SPQuery();     if (title != "")     {       string tf = titleField;       if (titleField == "") tf = "Title";       tf = CAMLThisName(list, tf, "Title");        StringBuilder titleQuery = new StringBuilder  ("<Where><Eq><FieldRef Name=");       titleQuery.Append(QT);       titleQuery.Append(tf);       titleQuery.Append(QT);       titleQuery.Append("/><Value Type=");       titleQuery.Append(QT);       titleQuery.Append("Text");       titleQuery.Append(QT);       titleQuery.Append(">");       titleQuery.Append(title);       titleQuery.Append("</Value></Eq></Where>");       query.Query = titleQuery.ToString();     }     if (columnNames.Length != 0)     {       StringBuilder sb = new StringBuilder("");       bool TitleAlreadyIncluded = false;       foreach (string columnName in columnNames)       {         string tst = CAMLThisName(list, columnName, "Title");         //Allow Title only once         if (tst != "Title" || !TitleAlreadyIncluded)         {           sb.Append("<FieldRef Name=");           sb.Append(QT);           sb.Append(tst);           sb.Append(QT);           sb.Append("/>");           if (tst == "Title") TitleAlreadyIncluded = true;         }       }       query.ViewFields = sb.ToString();     }     if (rowLimit > 0)     {        query.RowLimit = rowLimit;     }     SPListItemCollection col = list.GetItems(query);     return col;   }   catch (Exception ex)   {     //Console.WriteLine("GetListItemColumnByTitle" + ex.ToString());     //sw.WriteLine("GetListItemColumnByTitle" + ex.ToString());     return null;   } } Here I called it for a list in which “Author” (it is the internal name for “Created”) and “Blah” do not exist. The list of column names is:  string[] columnNames = {"Test Column1", "Title", "Author", "Allow Multiple Ratings", "Blah"};  So if I use this call, I get all the items for which “01-STD MIL_some” has the value of 1. the fields returned are: “Test Column1”, “Title”, and “Allow Multiple Ratings”. Because “Title” was already included and the default for non exixsting is “Title”, it was not replicated for the 2 non-existing fields.  SPListItemCollection col = GetListItemColumnByTitle(masterList, "01-STD MIL_some", "1", columnNames, 0); The following call checks if there are any items where “01-STD MIL_some” has the value of “1”. Note that I limited the number of returned items to 1.  SPListItemCollection col = GetListItemColumnByTitle(masterList, "01-STD MIL_some", "1", columnNames, 1); The code also uses the CAMLThisName function that checks for an existence of a field and returns its InternalName. This is yet another useful function that I use again and again.  /// <summary> /// return a fields internal name (CAMLName)  /// or the "default" name that you passed. /// To check existence pass "" or some funny name like "mud in your eye" /// </summary> public static string CAMLThisName(SPList list, string name, string def) {   String CAMLName = def;   SPField fld = GetFieldByName(list, name);   if (fld != null)   {      CAMLName = fld.InternalName;   }   return CAMLName; } That’s all folks?!

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• My Feelings About Microsoft Surface

  - by Valter Minute

  Advice: read the title carefully, I’m talking about “feelings” and not about advanced technical points proved in a scientific and objective way I still haven’t had a chance to play with a MS Surface tablet (I would love to, of course) and so my ideas just came from reading different articles on the net and MS official statements. Remember also that the MVP motto begins with “Independent” (“Independent Experts. Real World Answers.”) and this is just my humble opinion about a product and a technology. I know that, being an MS MVP you can be called an “MS-fanboy”, I don’t care, I hope that people can appreciate my opinion, even if it doesn’t match theirs. The “Surface” brand can be confusing for techies that knew the “original” surface concept but I think that will be a fresh new brand name for most of the people out there. But marketing department are here to confuse people… so I can understand this “recycle” of an existing name. So Microsoft is entering the hardware arena… for me this is good news. Microsoft developed some nice hardware in the past: the xbox, zune (even if the commercial success was quite limited) and, last but not least, the two arc mices (old and new model) that I use and appreciate. In the past Microsoft worked with OEMs and that model lead to good and bad things. Good thing (for microsoft, at least) is market domination by windows-based PCs that only in the last years has been reduced by the return of the Mac and tablets. Google is also moving in the hardware business with its acquisition of Motorola, and Apple leveraged his control of both the hardware and software sides to develop innovative products. Microsoft can scare OEMs and make them fly away from windows (but where?) or just lead the pack, showing how devices should be designed to compete in the market and bring back some of the innovation that disappeared from recent PC products (look at the shelves of your favorite electronics store and try to distinguish a laptop between the huge mass of anonymous PCs on displays… only Macs shine out there…). Having to compete with MS “official” hardware will force OEMs to develop better product and bring back some real competition in a market that was ruled only by prices (the lower the better even when that means low quality) and no innovative features at all (when it was the last time that a new PC surprised you?). Moving into a new market is a big and risky move, but with Windows 8 Microsoft is playing a crucial move for its future, trying to be back in the innovation run against apple and google. MS can’t afford to fail this time. I saw the new devices (the WinRT and Pro) and the specifications are scarce, misleading and confusing. The first impression is that the device looks like an iPad with a nice keyboard cover… Using “HD” and “full HD” to define display resolution instead of using the real figures and reviving the “ClearType” brand (now dead on Win8 as reported here and missed by people who hate to read text on displays, like myself) without providing clear figures (couldn’t you count those damned pixels?) seems to imply that MS was caught by surprise by apple recent “retina” displays that brought very high definition screens on tablets.Also there are no specifications about the processors used (even if some sources report NVidia Tegra for the ARM tablet and i5 for the x86 one) and expected battery life (a critical point for tablets and the point that killed Windows7 x86 based tablets). Also nothing about the price, and this will be another critical point because other platform out there already provide lots of applications and have a good user base, if MS want to enter this market tablets pricing must be competitive. There are some expansion ports (SD and USB), so no fixed storage model (even if the specs talks about 32-64GB for RT and 128-256GB for pro). I like this and don’t like the apple model where flash memory (that it’s dirt cheap used in thumdrives or SD cards) is as expensive as gold (or cocaine to have a more accurate per gram measurement) when mounted inside a tablet/phone. For big files you’ll be able to use external media and an SD card could be used to store files that don’t require super-fast SSD-like access times, I hope. To be honest I really don’t like the marketplace model and the limitation of Windows RT APIs (no local database? from a company that based a good share of its success on VB6+Access!) and lack of desktop support on the ARM (even if the support is here and has been used to port office). It’s a step toward the consumer market (where competitors are making big money), but may impact enterprise (and embedded) users that may not appreciate Windows 8 new UI or the limitations of the new app model (if you aren’t connected you are dead ). Not having compatibility with the desktop will require brand new applications and honestly made all the CPU cycles spent to convert .NET IL into real machine code in the past like a huge waste of time… as soon as a new processor architecture is supported by Windows you still have to rewrite part of your application (and MS is pushing HTML5+JS and native code more than .NET in my perception). On the other side I believe that the development experience provided by Visual Studio is still miles (or kilometres) ahead of the competition and even the all-uppercase menu of VS2012 hasn’t changed this situation. The new metro UI got mixed reviews. On my side I should say that is very pleasant to use on a touch screen, I like the minimalist design (even if sometimes is too minimal and hides stuff that, in my opinion, should be visible) but I should also say that using it with mouse and keyboard is like trying to pick your nose with boxing gloves… Metro is also very interesting for embedded devices where touch screen usage is quite common and where having an application taking all the screen is the norm. For devices like kiosks, vending machines etc. this kind of UI can be a great selling point. I don’t need a new tablet (to be honest I’m pretty happy with my wife’s iPad and with my PC), but I may change my opinion after having a chance to play a little bit with those new devices and understand what’s hidden under all this mysterious and generic announcements and specifications!

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• BizTalk 2009 - Custom Functoid Wizard

  - by StuartBrierley

  When creating BizTalk maps you may find that there are times when you need perform tasks that the standard functoids do not cover.  At other times you may find yourself reapeating a pattern of standard functoids over and over again, adding visual complexity to an otherwise simple process.  In these cases you may find it preferable to create your own custom functoids.  In the past I have created a number of custom functoids from scratch, but recently I decided to try out the Custom Functoid Wizard for BizTalk 2009. After downloading and installing the wizard you should start Visual Studio and select to create a new BizTalk Server Functoid Project. Following the splash screen you will be presented with the General Properties screen, where you can set the classname, namespace, assembly name and strong name key file. The next screen is the first set of properties for the functoid.  First of all is the fuctoid ID; this must be a value above 6000. You should also then set the name, tooltip and description of the functoid.  The name will appear in the visual studio toolbox and the tooltip on hover over in the toolbox.  The descrition will be shown when you configure the functoid inputs when using it in a map; as such it should provide a decent level of information to allow the functoid to be used. Next you must set the category, exception mesage, icon and implementation language.  The category will affect the positioning of the functoid within the toolbox and also some of the behaviours of the functoid. We must then define the parameters and connections for our new functoid.  Here you can define the names and types of your input parameters along with the minimum and maximum number of input connections.  You will also need to define the types of connections accepted and the output type of the functoid. Finally you can click finish and your custom functoid project will be created. The results of this process can be seen in the solution explorer, where you will see that a project, functoid class file and a resource file have been created for you. If you open the class file you will see that the following code has been created for you: The "base" function sets all the properties that you previsouly detailed in the custom functoid wizard.  public TestFunctoids():base()  {    int functoidID;    // This has to be a number greater than 6000    functoidID = System.Convert.ToInt32(resmgr.GetString("FunctoidId"));    this.ID = functoidID;    // Set Resource strings, bitmaps    SetupResourceAssembly(ResourceName, Assembly.GetExecutingAssembly());    SetName("FunctoidName");                     SetTooltip("FunctoidToolTip");    SetDescription("FunctoidDescription");    SetBitmap("FunctoidBitmap");    // Minimum and maximum parameters that the functoid accepts    this.SetMinParams(2);    this.SetMaxParams(2);    /// Function name that needs to be called when this Functoid is invoked.    /// Put this in GAC.    SetExternalFunctionName(GetType().Assembly.FullName,     "MyCompany.BizTalk.Functoids.TestFuntoids.TestFunctoids", "Execute");    // Category for this functoid.    this.Category = FunctoidCategory.String;    // Input and output Connection type    this.OutputConnectionType = ConnectionType.AllExceptRecord;    AddInputConnectionType(ConnectionType.AllExceptRecord);   } The "Execute" function provides a skeleton function that contains the code to be executed by your new functoid.  The inputs and outputs should match those you defined in the Custom Functoid Wizard.   public System.Int32 Execute(System.Int32 Cool)   {    ResourceManager resmgr = new ResourceManager(ResourceName, Assembly.GetExecutingAssembly());    try    {     // TODO: Implement Functoid Logic    }    catch (Exception e)    {     throw new Exception(resmgr.GetString("FunctoidException"), e);    }   } Opening the resource file you will see some of the various string values that you defined in the Custom Functoid Wizard - Name, Tooltip, Description and Exception. You can also select to look at the image resources.  This will display the embedded icon image for the functoid.  To change this right click the icon and select "Import from File". Once you have completed the skeleton code you can then look at trying out your functoid. To do this you will need to build the project, copy the compiled DLL to C:\Program Files\Microsoft BizTalk Server 2009\Developer Tools\Mapper Extensions and then refresh the toolbox in visual studio.

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• Cloud to On-Premise Connectivity Patterns

  - by Rajesh Raheja

  Do you have a requirement to convert an Opportunity in Salesforce.com to an Order/Quote in Oracle E-Business Suite? Or maybe you want the creation of an Oracle RightNow Incident to trigger an on-premise Oracle E-Business Suite Service Request creation for RMA and Field Scheduling? If so, read on. In a previous blog post, I discussed integrating TO cloud applications, however the use cases above are the reverse i.e. receiving data FROM cloud applications (SaaS) TO on-premise applications/databases that sit behind a firewall. Oracle SOA Suite is assumed to be on-premise with with Oracle Service Bus as the mediation and virtualization layer. The main considerations for the patterns are are security i.e. shielding enterprise resources; and scalability i.e. minimizing firewall latency. Let me use an analogy to help visualize the patterns: the on-premise system is your home - with your most valuable possessions - and the SaaS app is your favorite on-line store which regularly ships (inbound calls) various types of parcels/items (message types/service operations). You need the items at home (on-premise) but want to safe guard against misguided elements of society (internet threats) who may masquerade as postal workers and vandalize property (denial of service?). Let's look at the patterns. Pattern: Pull from Cloud The on-premise system polls from the SaaS apps and picks up the message instead of having it delivered. This may be done using Oracle RightNow Object Query Language or SOAP APIs. This is particularly suited for certain integration approaches wherein messages are trickling in, can be centralized and batched e.g. retrieving event notifications on an hourly schedule from the Oracle Messaging Service. To compare this pattern with the home analogy, you are avoiding any deliveries to your home and instead go to the post office/UPS/Fedex store to pick up your parcel. Every time. Pros: On-premise assets not exposed to the Internet, firewall issues avoided by only initiating outbound connections Cons: Polling mechanisms may affect performance, may not satisfy near real-time requirements Pattern: Open Firewall Ports The on-premise system exposes the web services that needs to be invoked by the cloud application. This requires opening up firewall ports, routing calls to the appropriate internal services behind the firewall. Fusion Applications uses this pattern, and auto-provisions the services on the various virtual hosts to secure the topology. This works well for service integration, but may not suffice for large volume data integration. Using the home analogy, you have now decided to receive parcels instead of going to the post office every time. A door mail slot cut out allows the postman can drop small parcels, but there is still concern about cutting new holes for larger packages. Pros: optimal pattern for near real-time needs, simpler administration once the service is provisioned Cons: Needs firewall ports to be opened up for new services, may not suffice for batch integration requiring direct database access Pattern: Virtual Private Networking The on-premise network is "extended" to the cloud (or an intermediary on-demand / managed service offering) using Virtual Private Networking (VPN) so that messages are delivered to the on-premise system in a trusted channel. Using the home analogy, you entrust a set of keys with a neighbor or property manager who receives the packages, and then drops it inside your home. Pros: Individual firewall ports don't need to be opened, more suited for high scalability needs, can support large volume data integration, easier management of one connection vs a multitude of open ports Cons: VPN setup, specific hardware support, requires cloud provider to support virtual private computing Pattern: Reverse Proxy / API Gateway The on-premise system uses a reverse proxy "API gateway" software on the DMZ to receive messages. The reverse proxy can be implemented using various mechanisms e.g. Oracle API Gateway provides firewall and proxy services along with comprehensive security, auditing, throttling benefits. If a firewall already exists, then Oracle Service Bus or Oracle HTTP Server virtual hosts can provide reverse proxy implementations on the DMZ. Custom built implementations are also possible if specific functionality (such as message store-n-forward) is needed. In the home analogy, this pattern sits in between cutting mail slots and handing over keys. Instead, you install (and maintain) a mailbox in your home premises outside your door. The post office delivers the parcels in your mailbox, from where you can securely retrieve it. Pros: Very secure, very flexible Cons: Introduces a new software component, needs DMZ deployment and management Pattern: On-Premise Agent (Tunneling) A light weight "agent" software sits behind the firewall and initiates the communication with the cloud, thereby avoiding firewall issues. It then maintains a bi-directional connection either with pull or push based approaches using (or abusing, depending on your viewpoint) the HTTP protocol. Programming protocols such as Comet, WebSockets, HTTP CONNECT, HTTP SSH Tunneling etc. are possible implementation options. In the home analogy, a resident receives the parcel from the postal worker by opening the door, however you still take precautions with chain locks and package inspections. Pros: Light weight software, IT doesn't need to setup anything Cons: May bypass critical firewall checks e.g. virus scans, separate software download, proliferation of non-IT managed software Conclusion The patterns above are some of the most commonly encountered ones for cloud to on-premise integration. Selecting the right pattern for your project involves looking at your scalability needs, security restrictions, sync vs asynchronous implementation, near real-time vs batch expectations, cloud provider capabilities, budget, and more. In some cases, the basic "Pull from Cloud" may be acceptable, whereas in others, an extensive VPN topology may be well justified. For more details on the Oracle cloud integration strategy, download this white paper.

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• Cloud to On-Premise Connectivity Patterns

  - by Rajesh Raheja

  Do you have a requirement to convert an Opportunity in Salesforce.com to an Order/Quote in Oracle E-Business Suite? Or maybe you want the creation of an Oracle RightNow Incident to trigger an on-premise Oracle E-Business Suite Service Request creation for RMA and Field Scheduling? If so, read on. In a previous blog post, I discussed integrating TO cloud applications, however the use cases above are the reverse i.e. receiving data FROM cloud applications (SaaS) TO on-premise applications/databases that sit behind a firewall. Oracle SOA Suite is assumed to be on-premise with with Oracle Service Bus as the mediation and virtualization layer. The main considerations for the patterns are are security i.e. shielding enterprise resources; and scalability i.e. minimizing firewall latency. Let me use an analogy to help visualize the patterns: the on-premise system is your home - with your most valuable possessions - and the SaaS app is your favorite on-line store which regularly ships (inbound calls) various types of parcels/items (message types/service operations). You need the items at home (on-premise) but want to safe guard against misguided elements of society (internet threats) who may masquerade as postal workers and vandalize property (denial of service?). Let's look at the patterns. Pattern: Pull from Cloud The on-premise system polls from the SaaS apps and picks up the message instead of having it delivered. This may be done using Oracle RightNow Object Query Language or SOAP APIs. This is particularly suited for certain integration approaches wherein messages are trickling in, can be centralized and batched e.g. retrieving event notifications on an hourly schedule from the Oracle Messaging Service. To compare this pattern with the home analogy, you are avoiding any deliveries to your home and instead go to the post office/UPS/Fedex store to pick up your parcel. Every time. Pros: On-premise assets not exposed to the Internet, firewall issues avoided by only initiating outbound connections Cons: Polling mechanisms may affect performance, may not satisfy near real-time requirements Pattern: Open Firewall Ports The on-premise system exposes the web services that needs to be invoked by the cloud application. This requires opening up firewall ports, routing calls to the appropriate internal services behind the firewall. Fusion Applications uses this pattern, and auto-provisions the services on the various virtual hosts to secure the topology. This works well for service integration, but may not suffice for large volume data integration. Using the home analogy, you have now decided to receive parcels instead of going to the post office every time. A door mail slot cut out allows the postman can drop small parcels, but there is still concern about cutting new holes for larger packages. Pros: optimal pattern for near real-time needs, simpler administration once the service is provisioned Cons: Needs firewall ports to be opened up for new services, may not suffice for batch integration requiring direct database access Pattern: Virtual Private Networking The on-premise network is "extended" to the cloud (or an intermediary on-demand / managed service offering) using Virtual Private Networking (VPN) so that messages are delivered to the on-premise system in a trusted channel. Using the home analogy, you entrust a set of keys with a neighbor or property manager who receives the packages, and then drops it inside your home. Pros: Individual firewall ports don't need to be opened, more suited for high scalability needs, can support large volume data integration, easier management of one connection vs a multitude of open ports Cons: VPN setup, specific hardware support, requires cloud provider to support virtual private computing Pattern: Reverse Proxy / API Gateway The on-premise system uses a reverse proxy "API gateway" software on the DMZ to receive messages. The reverse proxy can be implemented using various mechanisms e.g. Oracle API Gateway provides firewall and proxy services along with comprehensive security, auditing, throttling benefits. If a firewall already exists, then Oracle Service Bus or Oracle HTTP Server virtual hosts can provide reverse proxy implementations on the DMZ. Custom built implementations are also possible if specific functionality (such as message store-n-forward) is needed. In the home analogy, this pattern sits in between cutting mail slots and handing over keys. Instead, you install (and maintain) a mailbox in your home premises outside your door. The post office delivers the parcels in your mailbox, from where you can securely retrieve it. Pros: Very secure, very flexible Cons: Introduces a new software component, needs DMZ deployment and management Pattern: On-Premise Agent (Tunneling) A light weight "agent" software sits behind the firewall and initiates the communication with the cloud, thereby avoiding firewall issues. It then maintains a bi-directional connection either with pull or push based approaches using (or abusing, depending on your viewpoint) the HTTP protocol. Programming protocols such as Comet, WebSockets, HTTP CONNECT, HTTP SSH Tunneling etc. are possible implementation options. In the home analogy, a resident receives the parcel from the postal worker by opening the door, however you still take precautions with chain locks and package inspections. Pros: Light weight software, IT doesn't need to setup anything Cons: May bypass critical firewall checks e.g. virus scans, separate software download, proliferation of non-IT managed software Conclusion The patterns above are some of the most commonly encountered ones for cloud to on-premise integration. Selecting the right pattern for your project involves looking at your scalability needs, security restrictions, sync vs asynchronous implementation, near real-time vs batch expectations, cloud provider capabilities, budget, and more. In some cases, the basic "Pull from Cloud" may be acceptable, whereas in others, an extensive VPN topology may be well justified. For more details on the Oracle cloud integration strategy, download this white paper.

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• How to break out of if statement

  - by TheBroodian

  I'm not sure if the title is exactly an accurate representation of what I'm actually trying to ask, but that was the best I could think of. I am experiencing an issue with my character class. I have developed a system so that he can perform chain attacks, and something that was important to me was that 1)button presses during the process of an attack wouldn't interrupt the character, and 2) at the same time, button presses should be stored so that the player can smoothly queue up chain attacks in the middle of one so that gameplay doesn't feel rigid or unresponsive. This all begins when the player presses the punch button. Upon pressing the punch button, the game checks the state of the dpad at the moment of the button press, and then translates the resulting combined buttons into an int which I use as an enumerator relating to a punch method for the character. The enumerator is placed into a List so that the next time the character's Update() method is called, it will execute the next punch in the list. It only executes the next punch if my character is flagged with acceptInput as true. All attacks flag acceptInput as false, to prevent the interruption of attacks, and then at the end of an attack, acceptInput is set back to true. While accepting input, all other actions are polled for, i.e. jumping, running, etc. In runtime, if I attack, and then queue up another attack behind it (by pressing forward+punch) I can see the second attack visibly execute, which should flag acceptInput as false, yet it gets interrupted and my character will stop punching and start running if I am still holding down the dpad. Included is some code for context. This is the input region for my character. //Placed this outside the if (acceptInput) tree because I want it //to be taken into account whether we are accepting input or not. //This will queue up attacks, which will only be executed if we are accepting input. //This creates a desired effect that helps control the character in a // smoother fashion for the player. if (Input.justPressed(buttonManager.Punch)) { int dpadPressed = Input.DpadState(0); if (attackBuffer.Count() < 1) { attackBuffer.Add(CheckPunch(dpadPressed)); } else { attackBuffer.Clear(); attackBuffer.Add(CheckPunch(dpadPressed)); } } if (acceptInput) { if (attackBuffer.Count() > 0) { ExecutePunch(attackBuffer[0]); attackBuffer.RemoveAt(0); } //If D-Pad left is being held down. if (Input.DpadDirectionHeld(0, buttonManager.Left)) { flipped = false; if (onGround) { newAnimation = "run"; } velocity = new Vector2(velocity.X - acceleration, velocity.Y); if (walking == true && velocity.X <= -walkSpeed) { velocity.X = -walkSpeed; } else if (walking == false && velocity.X <= -maxSpeed) { velocity.X = -maxSpeed; } } //If D-Pad right is being held down. if (Input.DpadDirectionHeld(0, buttonManager.Right)) { flipped = true; if (onGround) { newAnimation = "run"; } velocity = new Vector2(velocity.X + acceleration, velocity.Y); if (walking == true && velocity.X >= walkSpeed) { velocity.X = walkSpeed; } else if (walking == false && velocity.X >= maxSpeed) { velocity.X = maxSpeed; } } //If jump/accept button is pressed. if (Input.justPressed(buttonManager.JumpAccept)) { if (onGround) { Jump(); } } //If toggle element next button is pressed. if (Input.justPressed(buttonManager.ToggleElementNext)) { if (elements.Count != 0) { elementInUse++; if (elementInUse >= elements.Count) { elementInUse = 0; } } } //If toggle element last button is pressed. if (Input.justPressed(buttonManager.ToggleElementLast)) { if (elements.Count != 0) { elementInUse--; if (elementInUse < 0) { elementInUse = Convert.ToSByte(elements.Count() - 1); } } } //If character is in the process of jumping. if (jumping == true) { if (Input.heldDown(buttonManager.JumpAccept)) { velocity.Y -= fallSpeed.Y; maxJumpTime -= elapsed; } if (Input.justReleased(buttonManager.JumpAccept) || maxJumpTime <= 0) { jumping = false; maxJumpTime = 0; } } //Won't execute abilities if input isn't being accepted. foreach (PlayerAbility ability in playerAbilities) { if (buffer.Matches(ability)) { if (onGround) { ability.Activate(); } if (!onGround && ability.UsableInAir) { ability.Activate(); } else if (!onGround && !ability.UsableInAir) { buffer.Clear(); } } } } When the attackBuffer calls ExecutePunch(int) method, ExecutePunch() will call one of the following methods: private void NeutralPunch1() //0 { acceptInput = false; busy = true; newAnimation = "punch1"; numberOfAttacks++; timeSinceLastAttack = 0; } private void ForwardPunch2(bool toLeft) //true == 7, false == 4 { forwardPunch2Timer = 0f; acceptInput = false; busy = true; newAnimation = "punch2begin"; numberOfAttacks++; timeSinceLastAttack = 0; if (toLeft) { velocity.X -= 800; } if (!toLeft) { velocity.X += 800; } } I assume the attack is being interrupted due to the fact that ExecutePunch() is in the same if statement as running, but I haven't been able to find a suitable way to stop this happening. Thank you ahead of time for reading this, I apologize for it having become so long winded.

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• Multiple enemy array in LibGDX

  - by johnny-b

  I am trying to make a multiple enemy array, where every 30 secods a new bullet comes from a random point. And if the bullet is clicked it should disapear and a pop like an explosion should appear. And if the bullet hits the ball then the ball pops. so the bullet should change to a different sprite or texture. same with the ball pop. But all that happens is the bullet if touched pops and nothing else happens. And if modified then the bullet keeps flashing as the update is way too much. I have added COMMENTS in the code to explain more on the issues. below is the code. if more code is needed i will provide. Thank you public class GameRenderer { private GameWorld myWorld; private OrthographicCamera cam; private ShapeRenderer shapeRenderer; private SpriteBatch batcher; // Game Objects private Ball ball; private ScrollHandler scroller; private Background background; private Bullet bullet1; private BulletPop bPop; private Array<Bullet> bullets; // This is for the delay of the bullet coming one by one every 30 seconds. /** The time of the last shot fired, we set it to the current time in nano when the object is first created */ double lastShot = TimeUtils.nanoTime(); /** Convert 30 seconds into nano seconds, so 30,000 milli = 30 seconds */ double shotFreq = TimeUtils.millisToNanos(30000); // Game Assets private TextureRegion bg, bPop; private Animation bulletAnimation, ballAnimation; private Animation ballPopAnimation; public GameRenderer(GameWorld world) { myWorld = world; cam = new OrthographicCamera(); cam.setToOrtho(true, 480, 320); batcher = new SpriteBatch(); // Attach batcher to camera batcher.setProjectionMatrix(cam.combined); shapeRenderer = new ShapeRenderer(); shapeRenderer.setProjectionMatrix(cam.combined); // This is suppose to produce 10 bullets at random places on the background. bullets = new Array<Bullet>(); Bullet bullet = null; float bulletX = 00.0f; float bulletY = 00.0f; for (int i = 0; i < 10; i++) { bulletX = MathUtils.random(-10, 10); bulletY = MathUtils.random(-10, 10); bullet = new Bullet(bulletX, bulletY); AssetLoader.bullet1.flip(true, false); AssetLoader.bullet2.flip(true, false); bullets.add(bullet); } // Call helper methods to initialize instance variables initGameObjects(); initAssets(); } private void initGameObjects() { ball = GameWorld.getBall(); bullet1 = myWorld.getBullet1(); bPop = myWorld.getBulletPop(); scroller = myWorld.getScroller(); } private void initAssets() { bg = AssetLoader.bg; ballAnimation = AssetLoader.ballAnimation; bullet1Animation = AssetLoader.bullet1Animation; ballPopAnimation = AssetLoader.ballPopAnimation; } // This is to take the bullet away when clicked or touched. public void onClick() { for (int i = 0; i < bullets.size; i++) { if (bullets.get(i).getBounds().contains(0, 0)) bullets.removeIndex(i); } } private void drawBackground() { batcher.draw(bg1, background.getX(), background.getY(), background.getWidth(), backgroundMove.getHeight()); } public void render(float runTime) { Gdx.gl.glClearColor(0, 0, 0, 1); Gdx.gl.glClear(GL30.GL_COLOR_BUFFER_BIT); batcher.begin(); // Disable transparency // This is good for performance when drawing images that do not require // transparency. batcher.disableBlending(); drawBackground(); batcher.enableBlending(); // when the bullet hits the ball, it should be disposed or taken away and a ball pop sprite/texture should be put in its place if (bullet1.collides(ball)) { // draws the bPop texture but the bullet does not go just keeps going around, and the bPop texture goes. batcher.draw(AssetLoader.bPop, 195, 273); } batcher.draw(AssetLoader.ballAnimation.getKeyFrame(runTime), ball.getX(), ball.getY(), ball.getWidth(), ball.getHeight()); // this is where i am trying to make the bullets come one by one, and if removed via the onClick() then bPop animation // should play but does not??? if(TimeUtils.nanoTime() - lastShot > shotFreq){ // Create your stuff for (int i = 0; i < bullets.size; i++) { bullets.get(i); batcher.draw(AssetLoader.bullet1Animation.getKeyFrame(runTime), bullet1.getX(), bullet1.getY(), bullet1.getOriginX(), bullet1.getOriginY(), bullet1.getWidth(), bullet1.getHeight(), 1.0f, 1.0f, bullet1.getRotation()); if (bullets.removeValue(bullet1, false)) { batcher.draw(AssetLoader.ballPopAnimation.getKeyFrame(runTime), bPop1.getX(), bPop1.getY(), bPop1.getWidth(), bPop1.getHeight()); } } /* Very important to set the last shot to now, or it will mess up and go full auto */ lastShot = TimeUtils.nanoTime(); } // End SpriteBatch batcher.end(); } } Thank you

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• The sign of a true manager is delegation (C# style)

  - by MarkPearl

  Today I thought I would write a bit about delegates in C#. Up till recently I have managed to side step any real understanding of what delegates do and why they are useful – I mean, I know roughly what they do and have used them a lot, but I have never really got down dirty with them and mucked about. Recently however with my renewed interest in Silverlight delegates came up again as a possible solution to a particular problem, and suddenly I found myself opening a bland little console application to just see exactly how far I could take delegates with my limited knowledge. So, let’s first look at the MSDN definition of delegates… A delegate declaration defines a reference type that can be used to encapsulate a method with a specific signature. A delegate instance encapsulates a static or an instance method. Delegates are roughly similar to function pointers in C++; however, delegates are type-safe and secure. Well, don’t you love MSDN for such a useful definition. I must give it credit though… later on it really explains it a bit better by saying “A delegate lets you pass a function as a parameter. The type safety of delegates requires the function you pass as a delegate to have the same signature as the delegate declaration.” A little more reading up on delegates mentions that delegates are similar to interfaces in that they enable the separation of specification and implementation. A delegate declares a single method, while an interface declares a group of methods. So enough reading - lets look at some code and see a basic example of a delegate… Let’s assume we have a console application with a simple delegate declared called AdjustValue like below… class Program { private delegate int AdjustValue(int val); static void Main(string[] args) { } } In a sense, all we have said is that we will be creating one or more methods that follow the same pattern as AdjustValue – i.e. they will take one input value of type int and return an integer. We could then expand our code to have various methods that match the structure of our delegate AdjustValue (remember the structure is int xxx (int xxx)) class Program { private delegate int AdjustValue(int val); private static int Dbl(int val) { return val * 2; } private static int AlwaysOne(int val) { return 1; } static void Main(string[] args) { } }  Above I have expanded my project to have two methods, one called Dbl and the other AlwaysOne. Dbl always returns double the input val and AlwaysOne always returns 1. I could now declare a variable and assign it to be one of those functions, like the following… class Program { private delegate int AdjustValue(int val); private static int Dbl(int val) { return val * 2; } private static int AlwaysOne(int val) { return 1; } static void Main(string[] args) { AdjustValue myDelegate; myDelegate = Dbl; Console.WriteLine(myDelegate(1).ToString()); Console.ReadLine(); } } In this instance I have declared an instance of the AdjustValue delegate called myDelegate; I have then told myDelegate to point to the method Dbl, and then called myDelegate(1). What would the result be? Yes, in this instance it would be exactly the same as me calling the following code… static void Main(string[] args) { Console.WriteLine(Dbl(1).ToString()); Console.ReadLine(); }   So why all the extra work for delegates when we could just do what we did above and call the method directly? Well… that separation of specification to implementation comes to mind. So, this all seems pretty simple. Let’s take a slightly more complicated variation to the console application. Assume that my project is the same as the one previously except that my main method is adjusted as follows… static void Main(string[] args) { AdjustValue myDelegate; myDelegate = Dbl; myDelegate = AlwaysOne; Console.WriteLine(myDelegate(1).ToString()); Console.ReadLine(); } What would happen in this scenario? Quite simply “1” would be written to the console, the reason being that myDelegate was last pointing to the AlwaysOne method before it was called. Make sense? In a way, the myDelegate is a variable method that can be swapped and changed when needed. Let’s make the code a little more confusing by using a delegate in the declaration of another delegate as shown below… class Program { private delegate int AdjustValue(InputValue val); private delegate int InputValue(); private static int Dbl(InputValue val) { return val()*2; } private static int GetInputVal() { Console.WriteLine("Enter a whole number : "); return Convert.ToInt32(Console.ReadLine()); } static void Main(string[] args) { AdjustValue myDelegate; myDelegate = Dbl; Console.WriteLine(myDelegate(GetInputVal).ToString()); Console.ReadLine(); } }   Now it gets really interesting because it looks like we have passed a method into a function in the main method by declaring… Console.WriteLine(myDelegate(GetInputVal).ToString()); So, what it the output? Well, try take a guess on what will happen – then copy the code and see if you got it right. Well that brings me to the end of this short explanation of Delegates. Hopefully it made sense!

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• C++ strongly typed typedef

  - by Kian

  I've been trying to think of a way of declaring strongly typed typedefs, to catch a certain class of bugs in the compilation stage. It's often the case that I'll typedef an int into several types of ids, or a vector to position or velocity: typedef int EntityID; typedef int ModelID; typedef Vector3 Position; typedef Vector3 Velocity; This can make the intent of code more clear, but after a long night of coding one might make silly mistakes like comparing different kinds of ids, or adding a position to a velocity perhaps. EntityID eID; ModelID mID; if ( eID == mID ) // <- Compiler sees nothing wrong { /*bug*/ } Position p; Velocity v; Position newP = p + v; // bug, meant p + v*s but compiler sees nothing wrong Unfortunately, suggestions I've found for strongly typed typedefs include using boost, which at least for me isn't a possibility (I do have c++11 at least). So after a bit of thinking, I came upon this idea, and wanted to run it by someone. First, you declare the base type as a template. The template parameter isn't used for anything in the definition, however: template < typename T > class IDType { unsigned int m_id; public: IDType( unsigned int const& i_id ): m_id {i_id} {}; friend bool operator==<T>( IDType<T> const& i_lhs, IDType<T> const& i_rhs ); }; Friend functions actually need to be forward declared before the class definition, which requires a forward declaration of the template class. We then define all the members for the base type, just remembering that it's a template class. Finally, when we want to use it, we typedef it as: class EntityT; typedef IDType<EntityT> EntityID; class ModelT; typedef IDType<ModelT> ModelID; The types are now entirely separate. Functions that take an EntityID will throw a compiler error if you try to feed them a ModelID instead, for example. Aside from having to declare the base types as templates, with the issues that entails, it's also fairly compact. I was hoping anyone had comments or critiques about this idea? One issue that came to mind while writing this, in the case of positions and velocities for example, would be that I can't convert between types as freely as before. Where before multiplying a vector by a scalar would give another vector, so I could do: typedef float Time; typedef Vector3 Position; typedef Vector3 Velocity; Time t = 1.0f; Position p = { 0.0f }; Velocity v = { 1.0f, 0.0f, 0.0f }; Position newP = p + v*t; With my strongly typed typedef I'd have to tell the compiler that multypling a Velocity by a Time results in a Position. class TimeT; typedef Float<TimeT> Time; class PositionT; typedef Vector3<PositionT> Position; class VelocityT; typedef Vector3<VelocityT> Velocity; Time t = 1.0f; Position p = { 0.0f }; Velocity v = { 1.0f, 0.0f, 0.0f }; Position newP = p + v*t; // Compiler error To solve this, I think I'd have to specialize every conversion explicitly, which can be kind of a bother. On the other hand, this limitation can help prevent other kinds of errors (say, multiplying a Velocity by a Distance, perhaps, which wouldn't make sense in this domain). So I'm torn, and wondering if people have any opinions on my original issue, or my approach to solving it.

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• Unable to install Xdebug

  - by burnt1ce

  I've registered xdebug in php.ini (as per http://xdebug.org/docs/install) but it's not showing up when i run "php -m" or when i get a test page to run "phpinfo()". I've just installed the latest version of XAMPP. Can anyone provide any suggestions in getting xdebug to show up? This is what i get when i run phpinfo(). **PHP Version 5.3.1** System Windows NT ANDREW_LAPTOP 5.1 build 2600 (Windows XP Professional Service Pack 3) i586 Build Date Nov 20 2009 17:20:57 Compiler MSVC6 (Visual C++ 6.0) Architecture x86 Configure Command cscript /nologo configure.js "--enable-snapshot-build" Server API Apache 2.0 Handler Virtual Directory Support enabled Configuration File (php.ini) Path no value Loaded Configuration File C:\xampp\php\php.ini Scan this dir for additional .ini files (none) Additional .ini files parsed (none) PHP API 20090626 PHP Extension 20090626 Zend Extension 220090626 Zend Extension Build API220090626,TS,VC6 PHP Extension Build API20090626,TS,VC6 Debug Build no Thread Safety enabled Zend Memory Manager enabled Zend Multibyte Support disabled IPv6 Support enabled Registered PHP Streams https, ftps, php, file, glob, data, http, ftp, compress.zlib, compress.bzip2, phar, zip Registered Stream Socket Transports tcp, udp, ssl, sslv3, sslv2, tls Registered Stream Filters convert.iconv.*, string.rot13, string.toupper, string.tolower, string.strip_tags, convert.*, consumed, dechunk, zlib.*, bzip2.* This program makes use of the Zend Scripting Language Engine: Zend Engine v2.3.0, Copyright (c) 1998-2009 Zend Technologies PHP Credits Configuration apache2handler Apache Version Apache/2.2.14 (Win32) DAV/2 mod_ssl/2.2.14 OpenSSL/0.9.8l mod_autoindex_color PHP/5.3.1 mod_apreq2-20090110/2.7.1 mod_perl/2.0.4 Perl/v5.10.1 Apache API Version 20051115 Server Administrator postmaster@localhost Hostname:Port localhost:80 Max Requests Per Child: 0 - Keep Alive: on - Max Per Connection: 100 Timeouts Connection: 300 - Keep-Alive: 5 Virtual Server No Server Root C:/xampp/apache Loaded Modules core mod_win32 mpm_winnt http_core mod_so mod_actions mod_alias mod_asis mod_auth_basic mod_auth_digest mod_authn_default mod_authn_file mod_authz_default mod_authz_groupfile mod_authz_host mod_authz_user mod_cgi mod_dav mod_dav_fs mod_dav_lock mod_dir mod_env mod_headers mod_include mod_info mod_isapi mod_log_config mod_mime mod_negotiation mod_rewrite mod_setenvif mod_ssl mod_status mod_autoindex_color mod_php5 mod_perl mod_apreq2 Directive Local Value Master Value engine 1 1 last_modified 0 0 xbithack 0 0 Apache Environment Variable Value MIBDIRS C:/xampp/php/extras/mibs MYSQL_HOME C:\xampp\mysql\bin OPENSSL_CONF C:/xampp/apache/bin/openssl.cnf PHP_PEAR_SYSCONF_DIR C:\xampp\php PHPRC C:\xampp\php TMP C:\xampp\tmp HTTP_HOST localhost HTTP_CONNECTION keep-alive HTTP_USER_AGENT Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/533.2 (KHTML, like Gecko) Chrome/5.0.342.8 Safari/533.2 HTTP_CACHE_CONTROL max-age=0 HTTP_ACCEPT application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5 HTTP_ACCEPT_ENCODING gzip,deflate,sdch HTTP_ACCEPT_LANGUAGE en-US,en;q=0.8 HTTP_ACCEPT_CHARSET ISO-8859-1,utf-8;q=0.7,*;q=0.3 PATH C:\Documents and Settings\Andrew\Local Settings\Application Data\Google\Chrome\Application;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;c:\Program Files\Microsoft SQL Server\100\Tools\Binn\;c:\Program Files\Microsoft SQL Server\100\DTS\Binn\;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\Common Files\DivX Shared\;C:\Program Files\WiTopia.Net\bin SystemRoot C:\WINDOWS COMSPEC C:\WINDOWS\system32\cmd.exe PATHEXT .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH WINDIR C:\WINDOWS SERVER_SIGNATURE <address>Apache/2.2.14 (Win32) DAV/2 mod_ssl/2.2.14 OpenSSL/0.9.8l mod_autoindex_color PHP/5.3.1 mod_apreq2-20090110/2.7.1 mod_perl/2.0.4 Perl/v5.10.1 Server at localhost Port 80</address> SERVER_SOFTWARE Apache/2.2.14 (Win32) DAV/2 mod_ssl/2.2.14 OpenSSL/0.9.8l mod_autoindex_color PHP/5.3.1 mod_apreq2-20090110/2.7.1 mod_perl/2.0.4 Perl/v5.10.1 SERVER_NAME localhost SERVER_ADDR 127.0.0.1 SERVER_PORT 80 REMOTE_ADDR 127.0.0.1 DOCUMENT_ROOT C:/xampp/htdocs SERVER_ADMIN postmaster@localhost SCRIPT_FILENAME C:/xampp/htdocs/test.php REMOTE_PORT 3275 GATEWAY_INTERFACE CGI/1.1 SERVER_PROTOCOL HTTP/1.1 REQUEST_METHOD GET QUERY_STRING no value REQUEST_URI /test.php SCRIPT_NAME /test.php HTTP Headers Information HTTP Request Headers HTTP Request GET /test.php HTTP/1.1 Host localhost Connection keep-alive User-Agent Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/533.2 (KHTML, like Gecko) Chrome/5.0.342.8 Safari/533.2 Cache-Control max-age=0 Accept application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5 Accept-Encoding gzip,deflate,sdch Accept-Language en-US,en;q=0.8 Accept-Charset ISO-8859-1,utf-8;q=0.7,*;q=0.3 HTTP Response Headers X-Powered-By PHP/5.3.1 Keep-Alive timeout=5, max=80 Connection Keep-Alive Transfer-Encoding chunked Content-Type text/html bcmath BCMath support enabled Directive Local Value Master Value bcmath.scale 0 0 bz2 BZip2 Support Enabled Stream Wrapper support compress.bz2:// Stream Filter support bzip2.decompress, bzip2.compress BZip2 Version 1.0.5, 10-Dec-2007 calendar Calendar support enabled com_dotnet COM support enabled DCOM support disabled .Net support enabled Directive Local Value Master Value com.allow_dcom 0 0 com.autoregister_casesensitive 1 1 com.autoregister_typelib 0 0 com.autoregister_verbose 0 0 com.code_page no value no value com.typelib_file no value no value Core PHP Version 5.3.1 Directive Local Value Master Value allow_call_time_pass_reference On On allow_url_fopen On On allow_url_include Off Off always_populate_raw_post_data Off Off arg_separator.input & & arg_separator.output &amp; &amp; asp_tags Off Off auto_append_file no value no value auto_globals_jit On On auto_prepend_file no value no value browscap C:\xampp\php\extras\browscap.ini C:\xampp\php\extras\browscap.ini default_charset no value no value default_mimetype text/html text/html define_syslog_variables Off Off disable_classes no value no value disable_functions no value no value display_errors On On display_startup_errors On On doc_root no value no value docref_ext no value no value docref_root no value no value enable_dl On On error_append_string no value no value error_log no value no value error_prepend_string no value no value error_reporting 22519 22519 exit_on_timeout Off Off expose_php On On extension_dir C:\xampp\php\ext C:\xampp\php\ext file_uploads On On highlight.bg #FFFFFF #FFFFFF highlight.comment #FF8000 #FF8000 highlight.default #0000BB #0000BB highlight.html #000000 #000000 highlight.keyword #007700 #007700 highlight.string #DD0000 #DD0000 html_errors On On ignore_repeated_errors Off Off ignore_repeated_source Off Off ignore_user_abort Off Off implicit_flush Off Off include_path .;C:\xampp\php\PEAR .;C:\xampp\php\PEAR log_errors Off Off log_errors_max_len 1024 1024 magic_quotes_gpc Off Off magic_quotes_runtime Off Off magic_quotes_sybase Off Off mail.add_x_header Off Off mail.force_extra_parameters no value no value mail.log no value no value max_execution_time 60 60 max_file_uploads 20 20 max_input_nesting_level 64 64 max_input_time 60 60 memory_limit 128M 128M open_basedir no value no value output_buffering no value no value output_handler no value no value post_max_size 128M 128M precision 14 14 realpath_cache_size 16K 16K realpath_cache_ttl 120 120 register_argc_argv On On register_globals Off Off register_long_arrays Off Off report_memleaks On On report_zend_debug On On request_order no value no value safe_mode Off Off safe_mode_exec_dir no value no value safe_mode_gid Off Off safe_mode_include_dir no value no value sendmail_from no value no value sendmail_path no value no value serialize_precision 100 100 short_open_tag Off Off SMTP localhost localhost smtp_port 25 25 sql.safe_mode Off Off track_errors Off Off unserialize_callback_func no value no value upload_max_filesize 128M 128M upload_tmp_dir C:\xampp\tmp C:\xampp\tmp user_dir no value no value user_ini.cache_ttl 300 300 user_ini.filename .user.ini .user.ini variables_order GPCS GPCS xmlrpc_error_number 0 0 xmlrpc_errors Off Off 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Phar fully realized by Gregory Beaver and Marcus Boerger. Portions of tar implementation Copyright (c) 2003-2009 Tim Kientzle. Directive Local Value Master Value phar.cache_list no value no value phar.readonly On On phar.require_hash On On Reflection Reflection enabled Version $Revision: 287991 $ session Session Support enabled Registered save handlers files user sqlite Registered serializer handlers php php_binary wddx Directive Local Value Master Value session.auto_start Off Off session.bug_compat_42 On On session.bug_compat_warn On On session.cache_expire 180 180 session.cache_limiter nocache nocache session.cookie_domain no value no value session.cookie_httponly Off Off session.cookie_lifetime 0 0 session.cookie_path / / session.cookie_secure Off Off session.entropy_file no value no value session.entropy_length 0 0 session.gc_divisor 100 100 session.gc_maxlifetime 1440 1440 session.gc_probability 1 1 session.hash_bits_per_character 5 5 session.hash_function 0 0 session.name PHPSESSID PHPSESSID session.referer_check no value no value session.save_handler files files session.save_path C:\xampp\tmp C:\xampp\tmp session.serialize_handler php php session.use_cookies On On session.use_only_cookies Off Off session.use_trans_sid 0 0 SimpleXML Simplexml support enabled Revision $Revision: 281953 $ Schema support enabled soap Soap Client enabled Soap Server enabled Directive Local Value Master Value soap.wsdl_cache 1 1 soap.wsdl_cache_dir /tmp /tmp soap.wsdl_cache_enabled 1 1 soap.wsdl_cache_limit 5 5 soap.wsdl_cache_ttl 86400 86400 sockets Sockets Support enabled SPL SPL support enabled Interfaces Countable, OuterIterator, RecursiveIterator, SeekableIterator, SplObserver, SplSubject Classes AppendIterator, ArrayIterator, ArrayObject, BadFunctionCallException, BadMethodCallException, CachingIterator, DirectoryIterator, DomainException, EmptyIterator, FilesystemIterator, FilterIterator, GlobIterator, InfiniteIterator, InvalidArgumentException, IteratorIterator, LengthException, LimitIterator, LogicException, MultipleIterator, NoRewindIterator, OutOfBoundsException, OutOfRangeException, OverflowException, ParentIterator, RangeException, RecursiveArrayIterator, RecursiveCachingIterator, RecursiveDirectoryIterator, RecursiveFilterIterator, RecursiveIteratorIterator, RecursiveRegexIterator, RecursiveTreeIterator, RegexIterator, RuntimeException, SplDoublyLinkedList, SplFileInfo, SplFileObject, SplFixedArray, SplHeap, SplMinHeap, SplMaxHeap, SplObjectStorage, SplPriorityQueue, SplQueue, SplStack, SplTempFileObject, UnderflowException, UnexpectedValueException SQLite SQLite support enabled PECL Module version 2.0-dev $Id: sqlite.c 289598 2009-10-12 22:37:52Z pajoye $ SQLite Library 2.8.17 SQLite Encoding iso8859 Directive Local Value Master Value sqlite.assoc_case 0 0 sqlite3 SQLite3 support enabled SQLite3 module version 0.7-dev SQLite Library 3.6.20 Directive Local Value Master Value sqlite3.extension_dir no value no value standard Dynamic Library Support enabled Internal Sendmail Support for Windows enabled Directive Local Value Master Value assert.active 1 1 assert.bail 0 0 assert.callback no value no value assert.quiet_eval 0 0 assert.warning 1 1 auto_detect_line_endings 0 0 default_socket_timeout 60 60 safe_mode_allowed_env_vars PHP_ PHP_ safe_mode_protected_env_vars LD_LIBRARY_PATH LD_LIBRARY_PATH url_rewriter.tags a=href,area=href,frame=src,input=src,form=,fieldset= a=href,area=href,frame=src,input=src,form=,fieldset= user_agent no value no value tokenizer Tokenizer Support enabled wddx WDDX Support enabled WDDX Session Serializer enabled xml XML Support active XML Namespace Support active libxml2 Version 2.7.6 xmlreader XMLReader enabled xmlrpc core library version xmlrpc-epi v. 0.54 php extension version 0.51 author Dan Libby homepage http://xmlrpc-epi.sourceforge.net open sourced by Epinions.com xmlwriter XMLWriter enabled xsl XSL enabled libxslt Version 1.1.26 libxslt compiled against libxml Version 2.7.6 EXSLT enabled libexslt Version 1.1.26 zip Zip enabled Extension Version $Id: php_zip.c 276389 2009-02-24 23:55:14Z iliaa $ Zip version 1.9.1 Libzip version 0.9.0 zlib ZLib Support enabled Stream Wrapper support compress.zlib:// Stream Filter support zlib.inflate, zlib.deflate Compiled Version 1.2.3 Linked Version 1.2.3 Directive Local Value Master Value zlib.output_compression Off Off zlib.output_compression_level -1 -1 zlib.output_handler no value no value Additional Modules Module Name Environment Variable Value no value ::=::\ no value C:=C:\xampp ALLUSERSPROFILE C:\Documents and Settings\All Users APPDATA C:\Documents and Settings\Andrew\Application Data CHROME_RESTART Google Chrome|Whoa! Google Chrome has crashed. Restart now?|LEFT_TO_RIGHT CHROME_VERSION 5.0.342.8 CLASSPATH .;C:\Program Files\QuickTime\QTSystem\QTJava.zip CommonProgramFiles C:\Program Files\Common Files COMPUTERNAME ANDREW_LAPTOP ComSpec C:\WINDOWS\system32\cmd.exe FP_NO_HOST_CHECK NO HOMEDRIVE C: HOMEPATH \Documents and Settings\Andrew LOGONSERVER \\ANDREW_LAPTOP NUMBER_OF_PROCESSORS 2 OS Windows_NT PATH C:\Documents and Settings\Andrew\Local Settings\Application Data\Google\Chrome\Application;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;c:\Program Files\Microsoft SQL Server\100\Tools\Binn\;c:\Program Files\Microsoft SQL Server\100\DTS\Binn\;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\Common Files\DivX Shared\;C:\Program Files\WiTopia.Net\bin PATHEXT .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH PROCESSOR_ARCHITECTURE x86 PROCESSOR_IDENTIFIER x86 Family 6 Model 15 Stepping 10, GenuineIntel PROCESSOR_LEVEL 6 PROCESSOR_REVISION 0f0a ProgramFiles C:\Program Files PROMPT $P$G QTJAVA C:\Program Files\QuickTime\QTSystem\QTJava.zip SESSIONNAME Console sfxcmd "C:\Documents and Settings\Andrew\My Documents\Downloads\xampp-win32-1.7.3.exe" sfxname C:\Documents and Settings\Andrew\My Documents\Downloads\xampp-win32-1.7.3.exe SystemDrive C: SystemRoot C:\WINDOWS TEMP C:\DOCUME~1\Andrew\LOCALS~1\Temp TMP C:\DOCUME~1\Andrew\LOCALS~1\Temp USERDOMAIN ANDREW_LAPTOP USERNAME Andrew USERPROFILE C:\Documents and Settings\Andrew VS100COMNTOOLS C:\Program Files\Microsoft Visual Studio 10.0\Common7\Tools\ windir C:\WINDOWS AP_PARENT_PID 2216 PHP Variables Variable Value _SERVER["MIBDIRS"] C:/xampp/php/extras/mibs _SERVER["MYSQL_HOME"] C:\xampp\mysql\bin _SERVER["OPENSSL_CONF"] C:/xampp/apache/bin/openssl.cnf _SERVER["PHP_PEAR_SYSCONF_DIR"] C:\xampp\php _SERVER["PHPRC"] C:\xampp\php _SERVER["TMP"] C:\xampp\tmp _SERVER["HTTP_HOST"] localhost _SERVER["HTTP_CONNECTION"] keep-alive _SERVER["HTTP_USER_AGENT"] Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/533.2 (KHTML, like Gecko) Chrome/5.0.342.8 Safari/533.2 _SERVER["HTTP_CACHE_CONTROL"] max-age=0 _SERVER["HTTP_ACCEPT"] application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5 _SERVER["HTTP_ACCEPT_ENCODING"] gzip,deflate,sdch _SERVER["HTTP_ACCEPT_LANGUAGE"] en-US,en;q=0.8 _SERVER["HTTP_ACCEPT_CHARSET"] ISO-8859-1,utf-8;q=0.7,*;q=0.3 _SERVER["PATH"] C:\Documents and Settings\Andrew\Local Settings\Application Data\Google\Chrome\Application;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;c:\Program Files\Microsoft SQL Server\100\Tools\Binn\;c:\Program Files\Microsoft SQL Server\100\DTS\Binn\;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\Common Files\DivX Shared\;C:\Program Files\WiTopia.Net\bin _SERVER["SystemRoot"] C:\WINDOWS _SERVER["COMSPEC"] C:\WINDOWS\system32\cmd.exe _SERVER["PATHEXT"] .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH _SERVER["WINDIR"] C:\WINDOWS _SERVER["SERVER_SIGNATURE"] <address>Apache/2.2.14 (Win32) DAV/2 mod_ssl/2.2.14 OpenSSL/0.9.8l mod_autoindex_color PHP/5.3.1 mod_apreq2-20090110/2.7.1 mod_perl/2.0.4 Perl/v5.10.1 Server at localhost Port 80</address> _SERVER["SERVER_SOFTWARE"] Apache/2.2.14 (Win32) DAV/2 mod_ssl/2.2.14 OpenSSL/0.9.8l mod_autoindex_color PHP/5.3.1 mod_apreq2-20090110/2.7.1 mod_perl/2.0.4 Perl/v5.10.1 _SERVER["SERVER_NAME"] localhost _SERVER["SERVER_ADDR"] 127.0.0.1 _SERVER["SERVER_PORT"] 80 _SERVER["REMOTE_ADDR"] 127.0.0.1 _SERVER["DOCUMENT_ROOT"] C:/xampp/htdocs _SERVER["SERVER_ADMIN"] postmaster@localhost _SERVER["SCRIPT_FILENAME"] C:/xampp/htdocs/test.php _SERVER["REMOTE_PORT"] 3275 _SERVER["GATEWAY_INTERFACE"] CGI/1.1 _SERVER["SERVER_PROTOCOL"] HTTP/1.1 _SERVER["REQUEST_METHOD"] GET _SERVER["QUERY_STRING"] no value _SERVER["REQUEST_URI"] /test.php _SERVER["SCRIPT_NAME"] /test.php _SERVER["PHP_SELF"] /test.php _SERVER["REQUEST_TIME"] 1270600868 _SERVER["argv"] Array ( ) _SERVER["argc"] 0 PHP License This program is free software; you can redistribute it and/or modify it under the terms of the PHP License as published by the PHP Group and included in the distribution in the file: LICENSE This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. If you did not receive a copy of the PHP license, or have any questions about PHP licensing, please contact [email protected].

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• How can I resolve Hibernate 3's ConstraintViolationException when updating a Persistent Entity's Col

  - by Tim Visher

  I'm trying to discover why two nearly identical class sets are behaving different from Hibernate 3's perspective. I'm fairly new to Hibernate in general and I'm hoping I'm missing something fairly obvious about the mappings or timing issues or something along those lines but I spent the whole day yesterday staring at the two sets and any differences that would lead to one being able to be persisted and the other not completely escaped me. I appologize in advance for the length of this question but it all hinges around some pretty specific implementation details. I have the following class mapped with Annotations and managed by Hibernate 3.? (if the specific specific version turns out to be pertinent, I'll figure out what it is). Java version is 1.6. ... @Embeddable public class JobStateChange implements Comparable<JobStateChange> { @Temporal(TemporalType.TIMESTAMP) @Column(nullable = false) private Date date; @Enumerated(EnumType.STRING) @Column(nullable = false, length = JobState.FIELD_LENGTH) private JobState state; @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "acting_user_id", nullable = false) private User actingUser; public JobStateChange() { } @Override public int compareTo(final JobStateChange o) { return this.date.compareTo(o.date); } @Override public boolean equals(final Object obj) { if (this == obj) { return true; } else if (!(obj instanceof JobStateChange)) { return false; } JobStateChange candidate = (JobStateChange) obj; return this.state == candidate.state && this.actingUser.equals(candidate.getUser()) && this.date.equals(candidate.getDate()); } @Override public int hashCode() { return this.state.hashCode() + this.actingUser.hashCode() + this.date.hashCode(); } } It is mapped as a Hibernate CollectionOfElements in the class Job as follows: ... @Entity @Table( name = "job", uniqueConstraints = { @UniqueConstraint( columnNames = { "agency", //Job Name "payment_type", //Job Name "payment_file", //Job Name "date_of_payment", "payment_control_number", "truck_number" }) }) public class Job implements Serializable { private static final long serialVersionUID = -1131729422634638834L; ... @org.hibernate.annotations.CollectionOfElements @JoinTable(name = "job_state", joinColumns = @JoinColumn(name = "job_id")) @Sort(type = SortType.NATURAL) private final SortedSet<JobStateChange> stateChanges = new TreeSet<JobStateChange>(); ... public void advanceState( final User actor, final Date date) { JobState nextState; LOGGER.debug("Current state of {} is {}.", this, this.getCurrentState()); if (null == this.currentState) { nextState = JobState.BEGINNING; } else { if (!this.isAdvanceable()) { throw new IllegalAdvancementException(this.currentState.illegalAdvancementStateMessage); } if (this.currentState.isDivergent()) { nextState = this.currentState.getNextState(this); } else { nextState = this.currentState.getNextState(); } } JobStateChange stateChange = new JobStateChange(nextState, actor, date); this.setCurrentState(stateChange.getState()); this.stateChanges.add(stateChange); LOGGER.debug("Advanced {} to {}", this, this.getCurrentState()); } private void setCurrentState(final JobState jobState) { this.currentState = jobState; } boolean isAdvanceable() { return this.getCurrentState().isAdvanceable(this); } ... @Override public boolean equals(final Object obj) { if (obj == this) { return true; } else if (!(obj instanceof Job)) { return false; } Job otherJob = (Job) obj; return this.getName().equals(otherJob.getName()) && this.getDateOfPayment().equals(otherJob.getDateOfPayment()) && this.getPaymentControlNumber().equals(otherJob.getPaymentControlNumber()) && this.getTruckNumber().equals(otherJob.getTruckNumber()); } @Override public int hashCode() { return this.getName().hashCode() + this.getDateOfPayment().hashCode() + this.getPaymentControlNumber().hashCode() + this.getTruckNumber().hashCode(); } ... } The purpose of JobStateChange is to record when the Job moves through a series of State Changes that are outline in JobState as enums which know about advancement and decrement rules. The interface used to advance Jobs through a series of states is to call Job.advanceState() with a Date and a User. If the Job is advanceable according to rules coded in the enum, then a new StateChange is added to the SortedSet and everyone's happy. If not, an IllegalAdvancementException is thrown. The DDL this generates is as follows: ... drop table job; drop table job_state; ... create table job ( id bigint generated by default as identity, current_state varchar(25), date_of_payment date not null, beginningCheckNumber varchar(8) not null, item_count integer, agency varchar(10) not null, payment_file varchar(25) not null, payment_type varchar(25) not null, endingCheckNumber varchar(8) not null, payment_control_number varchar(4) not null, truck_number varchar(255) not null, wrapping_system_type varchar(15) not null, printer_id bigint, primary key (id), unique (agency, payment_type, payment_file, date_of_payment, payment_control_number, truck_number) ); create table job_state ( job_id bigint not null, acting_user_id bigint not null, date timestamp not null, state varchar(25) not null, primary key (job_id, acting_user_id, date, state) ); ... alter table job add constraint FK19BBD12FB9D70 foreign key (printer_id) references printer; alter table job_state add constraint FK57C2418FED1F0D21 foreign key (acting_user_id) references app_user; alter table job_state add constraint FK57C2418FABE090B3 foreign key (job_id) references job; ... The database is seeded with the following data prior to running tests ... insert into job (id, agency, payment_type, payment_file, payment_control_number, date_of_payment, beginningCheckNumber, endingCheckNumber, item_count, current_state, printer_id, wrapping_system_type, truck_number) values (-3, 'RRB', 'Monthly', 'Monthly','4501','1998-12-01 08:31:16' , '00000001','00040000', 40000, 'UNASSIGNED', null, 'KERN', '02'); insert into job_state (job_id, acting_user_id, date, state) values (-3, -1, '1998-11-30 08:31:17', 'UNASSIGNED'); ... After the database schema is automatically generated and rebuilt by the Hibernate tool. The following test runs fine up until the call to Session.flush() ... @ContextConfiguration(locations = { "/applicationContext-data.xml", "/applicationContext-service.xml" }) public class JobDaoIntegrationTest extends AbstractTransactionalJUnit4SpringContextTests { @Autowired private JobDao jobDao; @Autowired private SessionFactory sessionFactory; @Autowired private UserService userService; @Autowired private PrinterService printerService; ... @Test public void saveJob_JobAdvancedToAssigned_AllExpectedStateChanges() { //Get an unassigned Job Job job = this.jobDao.getJob(-3L); assertEquals(JobState.UNASSIGNED, job.getCurrentState()); Date advancedToUnassigned = new GregorianCalendar(1998, 10, 30, 8, 31, 17).getTime(); assertEquals(advancedToUnassigned, job.getStateChange(JobState.UNASSIGNED).getDate()); //Satisfy advancement constraints and advance job.setPrinter(this.printerService.getPrinter(-1L)); Date advancedToAssigned = new Date(); job.advanceState( this.userService.getUserByUsername("admin"), advancedToAssigned); assertEquals(JobState.ASSIGNED, job.getCurrentState()); assertEquals(advancedToUnassigned, job.getStateChange(JobState.UNASSIGNED).getDate()); assertEquals(advancedToAssigned, job.getStateChange(JobState.ASSIGNED).getDate()); //Persist to DB this.sessionFactory.getCurrentSession().flush(); ... } ... } The error thrown is SQLCODE=-803, SQLSTATE=23505: could not insert collection rows: [jaci.model.job.Job.stateChanges#-3] org.hibernate.exception.ConstraintViolationException: could not insert collection rows: [jaci.model.job.Job.stateChanges#-3] at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:94) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) at org.hibernate.persister.collection.AbstractCollectionPersister.insertRows(AbstractCollectionPersister.java:1416) at org.hibernate.action.CollectionUpdateAction.execute(CollectionUpdateAction.java:86) at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:279) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:170) at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1027) at jaci.dao.JobDaoIntegrationTest.saveJob_JobAdvancedToAssigned_AllExpectedStateChanges(JobDaoIntegrationTest.java:98) at org.springframework.test.context.junit4.SpringTestMethod.invoke(SpringTestMethod.java:160) at org.springframework.test.context.junit4.SpringMethodRoadie.runTestMethod(SpringMethodRoadie.java:233) at org.springframework.test.context.junit4.SpringMethodRoadie$RunBeforesThenTestThenAfters.run(SpringMethodRoadie.java:333) at org.springframework.test.context.junit4.SpringMethodRoadie.runWithRepetitions(SpringMethodRoadie.java:217) at org.springframework.test.context.junit4.SpringMethodRoadie.runTest(SpringMethodRoadie.java:197) at org.springframework.test.context.junit4.SpringMethodRoadie.run(SpringMethodRoadie.java:143) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.invokeTestMethod(SpringJUnit4ClassRunner.java:160) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:97) Caused by: com.ibm.db2.jcc.b.lm: DB2 SQL Error: SQLCODE=-803, SQLSTATE=23505, SQLERRMC=1;ACI_APP.JOB_STATE, DRIVER=3.50.152 at com.ibm.db2.jcc.b.wc.a(wc.java:575) at com.ibm.db2.jcc.b.wc.a(wc.java:57) at com.ibm.db2.jcc.b.wc.a(wc.java:126) at com.ibm.db2.jcc.b.tk.b(tk.java:1593) at com.ibm.db2.jcc.b.tk.c(tk.java:1576) at com.ibm.db2.jcc.t4.db.k(db.java:353) at com.ibm.db2.jcc.t4.db.a(db.java:59) at com.ibm.db2.jcc.t4.t.a(t.java:50) at com.ibm.db2.jcc.t4.tb.b(tb.java:200) at com.ibm.db2.jcc.b.uk.Gb(uk.java:2355) at com.ibm.db2.jcc.b.uk.e(uk.java:3129) at com.ibm.db2.jcc.b.uk.zb(uk.java:568) at com.ibm.db2.jcc.b.uk.executeUpdate(uk.java:551) at org.hibernate.jdbc.NonBatchingBatcher.addToBatch(NonBatchingBatcher.java:46) at org.hibernate.persister.collection.AbstractCollectionPersister.insertRows(AbstractCollectionPersister.java:1389) Therein lies my problem… A nearly identical Class set (in fact, so identical that I've been chomping at the bit to make it a single class that serves both business entities) runs absolutely fine. It is identical except for name. Instead of Job it's Web. Instead of JobStateChange it's WebStateChange. Instead of JobState it's WebState. Both Job and Web's SortedSet of StateChanges are mapped as a Hibernate CollectionOfElements. Both are @Embeddable. Both are SortType.Natural. Both are backed by an Enumeration with some advancement rules in it. And yet when a nearly identical test is run for Web, no issue is discovered and the data flushes fine. For the sake of brevity I won't include all of the Web classes here, but I will include the test and if anyone wants to see the actual sources, I'll include them (just leave a comment). The data seed: insert into web (id, stock_type, pallet, pallet_id, date_received, first_icn, last_icn, shipment_id, current_state) values (-1, 'PF', '0011', 'A', '2008-12-31 08:30:02', '000000001', '000080000', -1, 'UNSTAGED'); insert into web_state (web_id, date, state, acting_user_id) values (-1, '2008-12-31 08:30:03', 'UNSTAGED', -1); The test: ... @ContextConfiguration(locations = { "/applicationContext-data.xml", "/applicationContext-service.xml" }) public class WebDaoIntegrationTest extends AbstractTransactionalJUnit4SpringContextTests { @Autowired private WebDao webDao; @Autowired private UserService userService; @Autowired private SessionFactory sessionFactory; ... @Test public void saveWeb_WebAdvancedToNewState_AllExpectedStateChanges() { Web web = this.webDao.getWeb(-1L); Date advancedToUnstaged = new GregorianCalendar(2008, 11, 31, 8, 30, 3).getTime(); assertEquals(WebState.UNSTAGED, web.getCurrentState()); assertEquals(advancedToUnstaged, web.getState(WebState.UNSTAGED).getDate()); Date advancedToStaged = new Date(); web.advanceState( this.userService.getUserByUsername("admin"), advancedToStaged); this.sessionFactory.getCurrentSession().flush(); web = this.webDao.getWeb(web.getId()); assertEquals( "Web should have moved to STAGED State.", WebState.STAGED, web.getCurrentState()); assertEquals(advancedToUnstaged, web.getState(WebState.UNSTAGED).getDate()); assertEquals(advancedToStaged, web.getState(WebState.STAGED).getDate()); assertNotNull(web.getState(WebState.UNSTAGED)); assertNotNull(web.getState(WebState.STAGED)); } ... } As you can see, I assert that the Web was reconstituted the way I expect, I advance it, flush it to the DB, and then re-get it and verify that the states are as I expect. Everything works perfectly. Not so with Job. A possibly pertinent detail: the reconstitution code works fine if I cease to map JobStateChange.data as a TIMESTAMP and instead as a DATE, and ensure that all of the StateChanges always occur on different Dates. The problem is that this particular business entity can go through many state changes in a single day and so it needs to be sorted by time stamp rather than by date. If I don't do this then I can't sort the StateChanges correctly. That being said, WebStateChange.date is also mapped as a TIMESTAMP and so I again remain absolutely befuddled as to where this error is arising from. I tried to do a fairly thorough job of giving all of the technical details of the implementation but as this particular question is very implementation specific, if I missed anything just let me know in the comments and I'll include it. Thanks so much for your help! UPDATE: Since it turns out to be important to the solution of my problem, I have to include the pertinent bits of the WebStateChange class as well. ... @Embeddable public class WebStateChange implements Comparable<WebStateChange> { @Temporal(TemporalType.TIMESTAMP) @Column(nullable = false) private Date date; @Enumerated(EnumType.STRING) @Column(nullable = false, length = WebState.FIELD_LENGTH) private WebState state; @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "acting_user_id", nullable = false) private User actingUser; ... WebStateChange( final WebState state, final User actingUser, final Date date) { ExceptionUtils.illegalNullArgs(state, actingUser, date); this.state = state; this.actingUser = actingUser; this.date = new Date(date.getTime()); } @Override public int compareTo(final WebStateChange otherStateChange) { return this.date.compareTo(otherStateChange.date); } @Override public boolean equals(final Object candidate) { if (this == candidate) { return true; } else if (!(candidate instanceof WebStateChange)) { return false; } WebStateChange candidateWebState = (WebStateChange) candidate; return this.getState() == candidateWebState.getState() && this.getUser().equals(candidateWebState.getUser()) && this.getDate().equals(candidateWebState.getDate()); } @Override public int hashCode() { return this.getState().hashCode() + this.getUser().hashCode() + this.getDate().hashCode(); } ... }

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• What is wrong with my XSLT for the XML File?

  - by atrueguy

  Actually my XML file has SVG info, and my Project lead wants me to develop an XSLT for the XMl file to convert it in to a PDF file. But when I try to do so I am failing to convert the XML file to PDF, can anyone help me out in this....... My Sample XML file <?xml version="1.0" encoding="ISO-8859-1"?> <!--<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">--> <!-- Generator: Arbortext IsoDraw 7.0 --> <svg width="100%" height="100%" viewBox="0 0 214.819 278.002"> <g id="Standard_x0020_layer"/> <g id="Catalog"> <line stroke-width="0.353" stroke-linecap="butt" x1="5.839" y1="262.185" x2="209.039" y2="262.185"/> <text transform="matrix(0.984 0 0 0.93 183.515 265.271)" stroke="none" fill="#000000" font-family="'Helvetica'" font-size="3.174">© 2009 k Co.</text> <text transform="matrix(0.994 0 0 0.93 7.235 265.3)" stroke="none" fill="#000000" font-family="'Helvetica'" font-size="3.174">087156-8-</text> <text transform="matrix(0.995 0 0 0.93 21.708 265.357)" stroke="none" fill="#000000" font-family="'Helvetica'" font-size="3.174" font-weight="bold">AB</text> <text x="103.292" y="265.298" stroke="none" fill="#000000" font-family="'Helvetica'" font-size="3.174">P. 1/1</text> <g id="IC_TextBlock.1"> <g> <text transform="matrix(0.994 0 0 0.93 192.812 8.076)" stroke="none" fill="#000000" font-family="'Helvetica'" font-size="4.586" font-weight="bold">Fittings</text> <text transform="matrix(0.994 0 0 0.93 188.492 13.323)" stroke="none" fill="#000000" font-family="'Helvetica'" font-size="4.586" font-weight="bold">Raccords</text> <text transform="matrix(0.994 0 0 0.93 183.431 18.571)" stroke="none" fill="#000000" font-family="'Helvetica'" font-size="4.586" font-weight="bold">Conexiones</text> </g> </g> <g> <path stroke="none" fill="#000000" d="M26.507 12.628L26.507 4.977 28.599 4.977 28.599 10.673 30.946 10.673 30.946 12.628 26.507 12.628z"/> <path stroke="none" fill="#000000" d="M19.693 12.628L19.693 4.977 21.785 4.977 21.785 7.66 23.893 7.66 23.893 4.977 25.986 4.977 25.986 12.628 23.893 12.628 23.893 9.782 21.785 9.782 21.785 12.628 19.693 12.628z"/> <path stroke="none" fill="#000000" d="M12.587 4.977L9.566 8.621 13.019 12.631 10.25 12.63 7.905 9.9 7.9 9.9 7.9 12.628 5.81 12.628 5.81 4.977 7.9 4.977 7.9 7.267 7.884 7.27 9.875 4.977 12.587 4.977z"/> <path stroke="none" fill="#000000" d="M11.455 8.739C11.455 6.538 13.221 4.753 15.4 4.753L15.4 6.775C14.419 6.775 13.625 7.653 13.625 8.737 13.625 9.821 14.419 10.699 15.4 10.699 16.382 10.699 17.176 9.821 17.176 8.737 17.176 7.653 16.382 6.775 15.4 6.775L15.4 4.753C17.579 4.753 19.346 6.538 19.346 8.739 19.346 10.941 17.579 12.724 15.4 12.724 13.221 12.724 11.455 10.941 11.455 8.739z"/> <path stroke="none" fill="#000000" d="M33.472 4.977L35.621 4.977 35.621 6.74 33.521 6.743 33.515 7.952 35.454 7.952 35.454 9.664 33.518 9.664 33.518 10.833 35.64 10.833 35.64 12.628 33.491 12.628 31.376 12.628 31.376 4.977 33.472 4.977z"/> <path stroke="none" fill="#000000" d="M39.97 9.57L42.146 12.631 39.862 12.628 38.156 10.279 38.156 12.622 36.107 12.622 36.107 4.974 38.728 4.974 38.741 6.75 38.149 6.75 38.149 8.221 38.741 8.223C39.149 8.223 39.478 7.894 39.478 7.487 39.478 7.08 39.149 6.75 38.741 6.75L38.728 4.974C41.036 4.974 42.5 7.867 39.97 9.57z"/> <path stroke="none" fill="#000000" d="M42.415 12.205C42.415 11.82 42.72 11.512 43.106 11.512 43.49 11.512 43.796 11.82 43.796 12.205 43.796 12.586 43.49 12.894 43.106 12.894L43.106 12.73C43.402 12.73 43.631 12.51 43.631 12.205 43.631 11.894 43.402 11.676 43.106 11.676L43.179 11.837C43.344 11.837 43.457 11.868 43.457 12.057 43.457 12.189 43.39 12.243 43.262 12.252L43.436 12.554 43.262 12.554 43.103 12.252 42.99 12.252 42.99 12.143 43.182 12.143C43.262 12.143 43.308 12.127 43.308 12.035 43.308 11.962 43.216 11.962 43.146 11.962L42.99 11.962 42.99 12.143 42.99 12.252 42.99 12.554 42.832 12.554 42.832 11.837 43.179 11.837 43.106 11.676C42.804 11.676 42.579 11.894 42.579 12.205 42.579 12.51 42.804 12.73 43.106 12.73L43.106 12.894C42.72 12.894 42.415 12.586 42.415 12.205z"/> <g> <path stroke="none" fill="#000000" d="M8.837 17.466L8.599 17.466 8.554 16.832 8.544 16.832C8.31 17.329 7.843 17.539 7.339 17.539 6.243 17.539 5.697 16.675 5.697 15.724 5.697 14.774 6.243 13.91 7.339 13.91 8.071 13.91 8.666 14.305 8.794 15.067L8.461 15.067C8.417 14.666 8.003 14.194 7.339 14.194 6.418 14.194 6.027 14.964 6.027 15.724 6.027 16.486 6.418 17.257 7.339 17.257 8.111 17.257 8.56 16.716 8.544 15.978L7.36 15.978 7.36 15.695 8.837 15.695 8.837 17.466z"/> <path stroke="none" fill="#000000" d="M9.477 13.984L11.881 13.984 11.881 14.266 9.807 14.266 9.807 15.525 11.749 15.525 11.749 15.807 9.807 15.807 9.807 17.182 11.906 17.182 11.906 17.466 9.477 17.466 9.477 13.984z"/> <path stroke="none" fill="#000000" d="M12.364 13.984L12.734 13.984 14.763 16.929 14.772 16.929 14.772 13.984 15.105 13.984 15.105 17.466 14.734 17.466 12.705 14.521 12.695 14.521 12.695 17.466 12.364 17.466 12.364 13.984z"/> <path stroke="none" fill="#000000" d="M15.768 13.984L16.1 13.984 16.1 16.14C16.094 16.949 16.48 17.257 17.118 17.257 17.763 17.257 18.147 16.949 18.143 16.14L18.143 13.984 18.475 13.984 18.475 16.213C18.475 16.929 18.089 17.539 17.118 17.539 16.153 17.539 15.768 16.929 15.768 16.213L15.768 13.984z"/> <path stroke="none" fill="#000000" d="M19.167 13.984L19.498 13.984 19.498 17.466 19.167 17.466 19.167 13.984z"/> <path stroke="none" fill="#000000" d="M20.221 13.984L20.591 13.984 22.62 16.929 22.629 16.929 22.629 13.984 22.961 13.984 22.961 17.466 22.591 17.466 20.562 14.521 20.553 14.521 20.553 17.466 20.221 17.466 20.221 13.984z"/> <path stroke="none" fill="#000000" d="M23.658 13.984L26.064 13.984 26.064 14.266 23.99 14.266 23.99 15.525 25.931 15.525 25.931 15.807 23.99 15.807 23.99 17.182 26.088 17.182 26.088 17.466 23.658 17.466 23.658 13.984z"/> <path stroke="none" fill="#000000" d="M27.908 13.984L29.452 13.984C30.077 13.984 30.487 14.349 30.487 14.978 30.487 15.608 30.077 15.974 29.452 15.974L28.239 15.974 28.239 15.691 29.379 15.691C29.838 15.691 30.155 15.457 30.155 14.978 30.155 14.5 29.838 14.266 29.379 14.266L28.239 14.266 28.239 15.691 28.239 15.974 28.239 17.466 27.908 17.466 27.908 13.984z"/> <path stroke="none" fill="#000000" d="M31.643 13.984L32.014 13.984 33.38 17.466 33.024 17.466 32.598 16.384 31.013 16.384 31.117 16.1 32.487 16.1 31.814 14.314 31.117 16.1 31.013 16.384 30.594 17.466 30.239 17.466 31.643 13.984z"/> <path stroke="none" fill="#000000" d="M33.695 13.984L35.292 13.984C35.866 13.984 36.35 14.262 36.35 14.891 36.35 15.33 36.121 15.691 35.671 15.778L35.671 15.788C36.125 15.846 36.256 16.16 36.28 16.574 36.296 16.812 36.296 17.291 36.442 17.466L36.076 17.466C35.993 17.329 35.993 17.071 35.984 16.925 35.954 16.437 35.915 15.896 35.286 15.919L34.029 15.919 34.029 15.637 35.267 15.637C35.671 15.637 36.018 15.384 36.018 14.96 36.018 14.535 35.765 14.266 35.267 14.266L34.029 14.266 34.029 15.637 34.029 15.919 34.029 17.466 33.695 17.466 33.695 13.984z"/> <path stroke="none" fill="#000000" d="M36.603 13.984L39.363 13.984 39.363 14.266 38.149 14.266 38.149 17.466 37.817 17.466 37.817 14.266 36.603 14.266 36.603 13.984z"/> <path stroke="none" fill="#000000" d="M39.847 16.32C39.832 17.038 40.348 17.257 40.982 17.257 41.348 17.257 41.905 17.056 41.905 16.548 41.905 16.155 41.509 15.997 41.188 15.919L40.411 15.73C40.003 15.628 39.627 15.432 39.627 14.891 39.627 14.55 39.847 13.91 40.826 13.91 41.515 13.91 42.118 14.281 42.115 14.993L41.783 14.993C41.762 14.461 41.325 14.194 40.832 14.194 40.378 14.194 39.959 14.368 39.959 14.885 39.959 15.212 40.203 15.349 40.485 15.417L41.335 15.628C41.826 15.759 42.237 15.974 42.237 16.545 42.237 16.783 42.139 17.539 40.905 17.539 40.081 17.539 39.475 17.169 39.515 16.32L39.847 16.32z"/> </g> </g> </g> </svg> My Sample XSLT File <?xml version="1.0" encoding="ISO-8859-1"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:svg="http://www.w3.org/2000/svg"> <xsl:template match="/"> <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format"> <fo:layout-master-set> <fo:simple-page-master master-name="simple" page-height="11in" page-width="8.5in"> <fo:region-body margin="0.7in" margin-top="1.15in" margin-left=".8in"/> <fo:region-before extent="1.5in"/> <fo:region-after extent="1.5in"/> <fo:region-start extent="1.5in"/> <fo:region-end extent="1.5in"/> </fo:simple-page-master> </fo:layout-master-set> <fo:page-sequence master-reference="simple"> <fo:flow flow-name="xsl-region-body"> <fo:block> <fo:instream-foreign-object xmlns:svg="http://www.w3.org/2000/svg"> <svg:svg height="100%" width="100%" viewBox="0 0 214.819 278.002"> <xsl:for-each select="svg/g/path"> <svg:g style="stroke:none;fill:#000000;stroke:black;"> <svg:path> <xsl:variable name="s"> <xsl:value-of select="translate(@d,' ','')"/> </xsl:variable> <xsl:attribute name="d"><xsl:value-of select="translate($s,',',' ')"/></xsl:attribute> </svg:path> </svg:g> </xsl:for-each> <xsl:for-each select="svg/g/text()"> <xsl:value-of select="."/> </xsl:for-each> <xsl:for-each select="svg/g/g/path"> <svg:g style="stroke:none;fill:#000000;stroke:black;"> <svg:path> <xsl:variable name="s"> <xsl:value-of select="translate(@d,' ','')"/> </xsl:variable> <xsl:attribute name="d"><xsl:value-of select="translate($s,',',' ')"/></xsl:attribute> </svg:path> </svg:g> </xsl:for-each> <xsl:for-each select="svg/g/g/g/path"> <svg:g style="stroke:none;fill:#000000;"> <svg:path> <xsl:variable name="s1"> <xsl:value-of select="translate(@d,' ','')"/> </xsl:variable> <xsl:attribute name="d"><xsl:value-of select="translate($s1,',',' ')"/></xsl:attribute> </svg:path> </svg:g> </xsl:for-each> <xsl:for-each select="svg/g/line"> <svg:g style="stroke-linecap:butt;"> <xsl:variable name="x1"> <xsl:value-of select="@x1"/> </xsl:variable> <xsl:variable name="y1"> <xsl:value-of select="@y1"/> </xsl:variable> <xsl:variable name="x2"> <xsl:value-of select="@x2"/> </xsl:variable> <xsl:variable name="y2"> <xsl:value-of select="@y2"/> </xsl:variable> <xsl:variable name="stroke-width"> <xsl:value-of select="@stroke-width"/> </xsl:variable> <svg:line x1="$x1" y1="$y1" x2="$x2" y2="$y2" stroke-width="$stroke-width" stroke="black" /> </svg:g> </xsl:for-each> </svg:svg> </fo:instream-foreign-object> </fo:block> </fo:flow> </fo:page-sequence> </fo:root> </xsl:template> </xsl:stylesheet> My Question I have developed the XSLT file for the XML, and I need to produce a pdf output after processing the xslt file. but I am not able to get the xml data in to my pdf. Please ask me if the information what I have provided is not sufficient, as I am bit new to Stackoverflow...

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• Blank Mail from PHP application

  - by brettlwilliams

  Problem: Blank email from PHP web application. Confirmed: App works in Linux, has various problems in Windows server environment. Blank emails are the last remaining problem. PHP Version 5.2.6 on the server I'm a librarian implementing a PHP based web application to help students complete their assignments.I have installed this application before on a Linux based free web host and had no problems. Email is controlled by two files, email_functions.php and email.php. While email can be sent, all that is sent is a blank email. My IT department is an ASP only shop, so I can get little to no help there. I also cannot install additional libraries like PHPmail or Swiftmailer. You can see a functional copy at http://rpc.elm4you.org/ You can also download a copy from Sourceforge from the link there. Thanks in advance for any insight into this! email_functions.php <?php /********************************************************** Function: build_multipart_headers Author: Michael Berkowski Last Modified: September 2007 *********************************************************** Purpose: Creates email headers for a message of type multipart/mime This will include a plain text part and HTML. **********************************************************/ function build_multipart_headers($boundary_rand) { global $EMAIL_FROM_DISPLAY_NAME, $EMAIL_FROM_ADDRESS, $CALC_PATH, $CALC_TITLE, $SERVER_NAME; // Using \n instead of \r\n because qmail doubles up the \r and screws everything up! $crlf = "\n"; $message_date = date("r"); // Construct headers for multipart/mixed MIME email. It will have a plain text and HTML part $headers = "X-Calc-Name: $CALC_TITLE" . $crlf; $headers .= "X-Calc-Url: http://{$SERVER_NAME}/{$CALC_PATH}" . $crlf; $headers .= "MIME-Version: 1.0" . $crlf; $headers .= "Content-type: multipart/alternative;" . $crlf; $headers .= " boundary=__$boundary_rand" . $crlf; $headers .= "From: $EMAIL_FROM_DISPLAY_NAME <$EMAIL_FROM_ADDRESS>" . $crlf; $headers .= "Sender: $EMAIL_FROM_DISPLAY_NAME <$EMAIL_FROM_ADDRESS>" . $crlf; $headers .= "Reply-to: $EMAIL_FROM_DISPLAY_NAME <$EMAIL_FROM_ADDRESS>" . $crlf; $headers .= "Return-Path: $EMAIL_FROM_DISPLAY_NAME <$EMAIL_FROM_ADDRESS>" . $crlf; $headers .= "Date: $message_date" . $crlf; $headers .= "Message-Id: $boundary_rand@$SERVER_NAME" . $crlf; return $headers; } /********************************************************** Function: build_multipart_body Author: Michael Berkowski Last Modified: September 2007 *********************************************************** Purpose: Builds the email body content to go with the headers from build_multipart_headers() **********************************************************/ function build_multipart_body($plain_text_message, $html_message, $boundary_rand) { //$crlf = "\r\n"; $crlf = "\n"; $boundary = "__" . $boundary_rand; // Begin constructing the MIME multipart message $multipart_message = "This is a multipart message in MIME format." . $crlf . $crlf; $multipart_message .= "--{$boundary}{$crlf}Content-type: text/plain; charset=\"us-ascii\"{$crlf}Content-Transfer-Encoding: 7bit{$crlf}{$crlf}"; $multipart_message .= $plain_text_message . $crlf . $crlf; $multipart_message .= "--{$boundary}{$crlf}Content-type: text/html; charset=\"iso-8859-1\"{$crlf}Content-Transfer-Encoding: 7bit{$crlf}{$crlf}"; $multipart_message .= $html_message . $crlf . $crlf; $multipart_message .= "--{$boundary}--$crlf$crlf"; return $multipart_message; } /********************************************************** Function: build_step_email_body_text Author: Michael Berkowski Last Modified: September 2007 *********************************************************** Purpose: Returns a plain text version of the email body to be used for individually sent step reminders **********************************************************/ function build_step_email_body_text($stepnum, $arr_instructions, $dates, $query_string, $teacher_info ,$name, $class, $project_id) { global $CALC_PATH, $CALC_TITLE, $SERVER_NAME; $step_email_body =<<<BODY $CALC_TITLE Step $stepnum: {$arr_instructions["step$stepnum"]["title"]} Name: $name Class: $class BODY; $step_email_body .= build_text_single_step($stepnum, $arr_instructions, $dates, $query_string, $teacher_info); $step_email_body .= "\n\n"; $step_email_body .=<<<FOOTER The $CALC_TITLE offers suggestions, but be sure to check with your teacher to find out the best working schedule for your assignment! If you would like to stop receiving further reminders for this project, click the link below: http://$SERVER_NAME/$CALC_PATH/deleteproject.php?proj=$project_id FOOTER; // Wrap text to 78 chars per line // Convert any remaining HTML <br /> to \r\n // Strip out any remaining HTML tags. $step_email_body = strip_tags(linebreaks_html2text(wordwrap($step_email_body, 78, "\n"))); return $step_email_body; } /********************************************************** Function: build_step_email_body_html Author: Michael Berkowski Last Modified: September 2007 *********************************************************** Purpose: Same as above, but with HTML **********************************************************/ function build_step_email_body_html($stepnum, $arr_instructions, $dates, $query_string, $teacher_info, $name, $class, $project_id) { global $CALC_PATH, $CALC_TITLE, $SERVER_NAME; $styles = build_html_styles(); $step_email_body =<<<BODY <html> <head> <title> $CALC_TITLE </title> $styles </head> <body> <h1> $CALC_TITLE Schedule </h1> <strong>Name:</strong> $name <br /> <strong>Class:</strong> $class <br /> BODY; $step_email_body .= build_html_single_step($stepnum, $arr_instructions, $dates, $query_string, $teacher_info); $step_email_body .=<<<FOOTER <p> The $CALC_TITLE offers suggestions, but be sure to check with your teacher to find out the best working schedule for your assignment! </p> <p> If you would like to stop receiving further reminders for this project, <a href="http://{$SERVER_NAME}/$CALC_PATH/deleteproject.php?proj=$project_id">click this link.</a> </p> </body> </html> FOOTER; return $step_email_body; } /********************************************************** Function: build_html_styles Author: Michael Berkowski Last Modified: September 2007 *********************************************************** Purpose: Just returns a string of <style /> for the HTML message body **********************************************************/ function build_html_styles() { $styles =<<<STYLES <style type="text/css"> body { font-family: Arial, sans-serif; font-size: 85%; } h1 { font-size: 120%; } table { border: none; } tr { vertical-align: top; } img { display: none; } hr { border: 0; } </style> STYLES; return $styles; } /********************************************************** Function: linebreaks_html2text Author: Michael Berkowski Last Modified: October 2007 *********************************************************** Purpose: Convert <br /> html tags to \n line breaks **********************************************************/ function linebreaks_html2text($in_string) { $out_string = ""; $arr_br = array("<br>", "<br />", "<br/>"); $out_string = str_replace($arr_br, "\n", $in_string); return $out_string; } ?> email.php <?php require_once("include/config.php"); require_once("include/instructions.php"); require_once("dbase/dbfunctions.php"); require_once("include/email_functions.php"); ini_set("sendmail_from", "[email protected]"); ini_set("SMTP", "mail.qatar.net.qa"); // Verify that the email has not already been sent by checking for a cookie // whose value is generated each time the form is loaded freshly. if (!(isset($_COOKIE['rpc_transid']) && $_COOKIE['rpc_transid'] == $_POST['transid'])) { // Setup some preliminary variables for email. // The scanning of $_POST['email']already took place when this file was included... $to = $_POST['email']; $subject = $EMAIL_SUBJECT; $boundary_rand = md5(rand()); $mail_type = ""; switch ($_POST['reminder-type']) { case "progressive": $arr_dbase_dates = array(); $conn = rpc_connect(); if (!$conn) { $mail_success = FALSE; $mail_status_message = "Could not register address!"; break; } // Sanitize all the data that will be inserted into table... // We need to remove "CONTENT-TYPE:" from name/class to defang them. // Additionall, we can't allow any line-breaks in those fields to avoid // hacks to email headers. $ins_name = mysql_real_escape_string($name); $ins_name = eregi_replace("CONTENT-TYPE", "...Content_Type...", $ins_name); $ins_name = str_replace("\n", "", $ins_name); $ins_class = mysql_real_escape_string($class); $ins_class = eregi_replace("CONTENT-TYPE", "...Content_Type...", $ins_class); $ins_class = str_replace("\n", "", $ins_class); $ins_email = mysql_real_escape_string($email); $ins_teacher_info = $teacher_info ? "YES" : "NO"; switch ($format) { case "Slides": $ins_format = "SLIDES"; break; case "Video": $ins_format = "VIDEO"; break; case "Essay": default: $ins_format = "ESSAY"; break; } // The transid from the previous form will be used as a project identifier // Steps will be grouped by project identifier. $ins_project_id = mysql_real_escape_string($_POST['transid'] . md5(rand())); $arr_dbase_dates = dbase_dates($dates); $arr_past_dates = array(); // Iterate over the dates array and build a SQL statement for each one. $insert_success = TRUE; // $min_reminder_date = date("Ymd", mktime(0,0,0,date("m"),date("d")+$EMAIL_REMINDER_DAYS_AHEAD,date("Y"))); for ($date_index = 0; $date_index < sizeof($arr_dbase_dates); $date_index++) { // Make sure we're using the right keys... $ins_date_index = $date_index + 1; // The insert will only happen if the date of the event is in the future. // For dates today and earlier, no insert. // For dates today or after the reminder deadline, we'll send the email immediately after the inserts. if ($arr_dbase_dates[$date_index] > (int)$min_reminder_date) { $qry =<<<QRY INSERT INTO email_queue ( NOTIFICATION_ID, PROJECT_ID, EMAIL, NAME, CLASS, FORMAT, TEACHER_INFO, STEP, MESSAGE_DATE ) VALUES ( NULL, '$ins_project_id', '$ins_email', '$ins_name', '$ins_class', '$ins_format', '$ins_teacher_info', $ins_date_index, /*step number*/ {$arr_dbase_dates[$date_index]} /* Date in the integer format yyyymmdd */ ) QRY; // Attempt to do the insert... $result = mysql_query($qry); // If even one insert fails, bail out. if (!$result) { $mail_success = FALSE; $mail_status_message = "Could not register address!"; break; } } // For dates today or earlier, store the steps=>dates in an array so the mails can // be sent immediately. else { $arr_past_dates[$ins_date_index] = $arr_dbase_dates[$date_index]; } } // Close the connection resources. mysql_close($conn); // SEND OUT THE EMAILS THAT HAVE TO GO IMMEDIATELY... // This should only be step 1, but who knows... //var_dump($arr_past_dates); for ($stepnum=1; $stepnum<=sizeof($arr_past_dates); $stepnum++) { $email_teacher_info = ($teacher_info && $EMAIL_TEACHER_REMINDERS) ? TRUE : FALSE; $boundary = md5(rand()); $plain_text_body = build_step_email_body_text($stepnum, $arr_instructions, $dates, $query_string, $email_teacher_info ,$name, $class, $ins_project_id); $html_body = build_step_email_body_html($stepnum, $arr_instructions, $dates, $query_string, $email_teacher_info ,$name, $class, $ins_project_id); $multipart_headers = build_multipart_headers($boundary); $multipart_body = build_multipart_body($plain_text_body, $html_body, $boundary); mail($to, $subject . ": Step " . $stepnum, $multipart_body, $multipart_headers, "[email protected]"); } // Set appropriate flags and messages $mail_success = TRUE; $mail_status_message = "Email address registered!"; $mail_type = "progressive"; set_mail_success_cookie(); break; // Default to a single email message. case "single": default: // We don't want to send images in the message, so strip them out of the existing structure. // This big ugly regex strips the whole table cell containing the image out of the table. // Must find a better solution... //$email_table_html = eregi_replace("<td class=\"stepImageContainer\" width=\"161px\">[\s\r\n\t]*<img class=\"stepImage\" src=\"images/[_a-zA-Z0-9]*\.gif\" alt=\"Step [1-9]{1} logo\" />[\s\r\n\t]*</td>", "\n", $table_html); // Show more descriptive text based on the value of $format switch ($format) { case "Video": $format_display = "Video"; break; case "Slides": $format_display = "Presentation with electronic slides"; break; case "Essay": default: $format_display = "Essay"; break; } $days = (int)$days; $html_message = ""; $styles = build_html_styles(); $html_message =<<<HTMLMESSAGE <html> <head> <title> $CALC_TITLE </title> $styles </head> <body> <h1> $CALC_TITLE Schedule </h1> <strong>Name:</strong> $name <br /> <strong>Class:</strong> $class <br /> <strong>Email:</strong> $email <br /> <strong>Assignment type:</strong> $format_display <br /><br /> <strong>Starting on:</strong> $date1 <br /> <strong>Assignment due:</strong> $date2 <br /> <strong>You have $days days to finish.</strong><br /> <hr /> $email_table_html </body> </html> HTMLMESSAGE; // Create the plain text version of the message... $plain_text_message = strip_tags(linebreaks_html2text(build_text_all_steps($arr_instructions, $dates, $query_string, $teacher_info))); // Add the title, since it doesn't get built in by build_text_all_steps... $plain_text_message = $CALC_TITLE . " Schedule\n\n" . $plain_text_message; $plain_text_message = wordwrap($plain_text_message, 78, "\n"); $multipart_headers = build_multipart_headers($boundary_rand); $multipart_message = build_multipart_body($plain_text_message, $html_message, $boundary_rand); $mail_success = FALSE; if (mail($to, $subject, $multipart_message, $multipart_headers, "[email protected]")) { $mail_success = TRUE; $mail_status_message = "Email sent!"; $mail_type = "single"; set_mail_success_cookie(); } else { $mail_success = FALSE; $mail_status_message = "Could not send email!"; } break; } } function set_mail_success_cookie() { // Prevent the mail from being resent on page reload. Set a timestamp cookie. // Expires in 24 hours. setcookie("rpc_transid", $_POST['transid'], time() + 86400); } ?>

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• Value cannot be null, ArgumentNullException

  - by Wooolie

  I am currently trying to return an array which contains information about a seat at a theate such as Seat number, Name, Price and Status. I am using a combobox where I want to list all vacant or reserved seats based upon choice. When I choose reserved seats in my combobox, I call upon a method using AddRange. This method is supposed to loop through an array containing all seats and their information. If a seat is Vacant, I add it to an array. When all is done, I return this array. However, I am dealing with a ArgumentNullException. MainForm namespace Assignment4 { public partial class MainForm : Form { // private const int totNumberOfSeats = 240; private SeatManager seatMngr; private const int columns = 10; private const int rows = 10; public enum DisplayOptions { AllSeats, VacantSeats, ReservedSeats } public MainForm() { InitializeComponent(); seatMngr = new SeatManager(rows, columns); InitializeGUI(); } /// <summary> /// Fill the listbox with information from the beginning, /// let the user be able to choose from vacant seats. /// </summary> private void InitializeGUI() { rbReserve.Checked = true; txtName.Text = string.Empty; txtPrice.Text = string.Empty; lblTotalSeats.Text = seatMngr.GetNumOfSeats().ToString(); cmbOptions.Items.AddRange(Enum.GetNames(typeof(DisplayOptions))); cmbOptions.SelectedIndex = 0; UpdateGUI(); } /// <summary> /// call on methods ValidateName and ValidatePrice with arguments /// </summary> /// <param name="name"></param> /// <param name="price"></param> /// <returns></returns> private bool ValidateInput(out string name, out double price) { bool nameOK = ValidateName(out name); bool priceOK = ValidatePrice(out price); return nameOK && priceOK; } /// <summary> /// Validate name using inputUtility, show error if input is invalid /// </summary> /// <param name="name"></param> /// <returns></returns> private bool ValidateName(out string name) { name = txtName.Text.Trim(); if (!InputUtility.ValidateString(name)) { //inform user MessageBox.Show("Input of name is Invalid. It can not be empty, " + Environment.NewLine + "and must have at least one character.", " Error!"); txtName.Focus(); txtName.Text = " "; txtName.SelectAll(); return false; } return true; } /// <summary> /// Validate price using inputUtility, show error if input is invalid /// </summary> /// <param name="price"></param> /// <returns></returns> private bool ValidatePrice(out double price) { // show error if input is invalid if (!InputUtility.GetDouble(txtPrice.Text.Trim(), out price, 0)) { //inform user MessageBox.Show("Input of price is Invalid. It can not be less than 0, " + Environment.NewLine + "and must not be empty.", " Error!"); txtPrice.Focus(); txtPrice.Text = " "; txtPrice.SelectAll(); return false; } return true; } /// <summary> /// Check if item is selected in listbox /// </summary> /// <returns></returns> private bool CheckSelectedIndex() { int index = lbSeats.SelectedIndex; if (index < 0) { MessageBox.Show("Please select an item in the box"); return false; } else return true; } /// <summary> /// Call method ReserveOrCancelSeat when button OK is clicked /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnOK_Click(object sender, EventArgs e) { ReserveOrCancelSeat(); } /// <summary> /// Reserve or cancel seat depending on choice the user makes. Update GUI after choice. /// </summary> private void ReserveOrCancelSeat() { if (CheckSelectedIndex() == true) { string name = string.Empty; double price = 0.0; int selectedSeat = lbSeats.SelectedIndex; bool reserve = false; bool cancel = false; if (rbReserve.Checked) { DialogResult result = MessageBox.Show("Do you want to continue?", "Approve", MessageBoxButtons.YesNo); if (result == DialogResult.Yes) { if (ValidateInput(out name, out price)) { reserve = seatMngr.ReserveSeat(name, price, selectedSeat); if (reserve == true) { MessageBox.Show("Seat has been reserved"); UpdateGUI(); } else { MessageBox.Show("Seat has already been reserved"); } } } } else { DialogResult result = MessageBox.Show("Do you want to continue?", "Approve", MessageBoxButtons.YesNo); if (result == DialogResult.Yes) { cancel = seatMngr.CancelSeat(selectedSeat); if (cancel == true) { MessageBox.Show("Seat has been cancelled"); UpdateGUI(); } else { MessageBox.Show("Seat is already vacant"); } } } UpdateGUI(); } } /// <summary> /// Update GUI with new information. /// </summary> /// <param name="customerName"></param> /// <param name="price"></param> private void UpdateGUI() { lbSeats.Items.Clear(); lbSeats.Items.AddRange(seatMngr.GetSeatInfoString()); lblVacantSeats.Text = seatMngr.GetNumOfVacant().ToString(); lblReservedSeats.Text = seatMngr.GetNumOfReserved().ToString(); if (rbReserve.Checked) { txtName.Text = string.Empty; txtPrice.Text = string.Empty; } } /// <summary> /// set textboxes to false if cancel reservation button is checked /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void rbCancel_CheckedChanged_1(object sender, EventArgs e) { txtName.Enabled = false; txtPrice.Enabled = false; } /// <summary> /// set textboxes to true if reserved radiobutton is checked /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void rbReserve_CheckedChanged_1(object sender, EventArgs e) { txtName.Enabled = true; txtPrice.Enabled = true; } /// <summary> /// Make necessary changes on the list depending on what choice the user makes. Show only /// what the user wants to see, whether its all seats, reserved seats or vacant seats only. /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void cmbOptions_SelectedIndexChanged(object sender, EventArgs e) { if (cmbOptions.SelectedIndex == 0 && rbReserve.Checked) //All seats visible. { UpdateGUI(); txtName.Enabled = true; txtPrice.Enabled = true; btnOK.Enabled = true; } else if (cmbOptions.SelectedIndex == 0 && rbCancel.Checked) { UpdateGUI(); txtName.Enabled = false; txtPrice.Enabled = false; btnOK.Enabled = true; } else if (cmbOptions.SelectedIndex == 1) //Only vacant seats visible. { lbSeats.Items.Clear(); lbSeats.Items.AddRange(seatMngr.ReturnVacantSeats()); // Value cannot be null txtName.Enabled = false; txtPrice.Enabled = false; btnOK.Enabled = false; } else if (cmbOptions.SelectedIndex == 2) //Only reserved seats visible. { lbSeats.Items.Clear(); lbSeats.Items.AddRange(seatMngr.ReturnReservedSeats()); // Value cannot be null txtName.Enabled = false; txtPrice.Enabled = false; btnOK.Enabled = false; } } } } SeatManager namespace Assignment4 { class SeatManager { private string[,] nameList = null; private double[,] priceList = null; private string[,] seatList = null; private readonly int totCols; private readonly int totRows; /// <summary> /// Constructor with declarations of size for all arrays. /// </summary> /// <param name="totNumberOfSeats"></param> public SeatManager(int row, int cols) { totCols = cols; totRows = row; nameList = new string[row, cols]; priceList = new double[row, cols]; seatList = new string[row, cols]; for (int rows = 0; rows < row; rows++) { for (int col = 0; col < totCols; col++) { seatList[rows, col] = "Vacant"; } } } /// <summary> /// Check if index is within bounds of the array /// </summary> /// <param name="index"></param> /// <returns></returns> private bool CheckIndex(int index) { if (index >= 0 && index < nameList.Length) return true; else return false; } /// <summary> /// Return total number of seats /// </summary> /// <returns></returns> public int GetNumOfSeats() { int count = 0; for (int rows = 0; rows < totRows; rows++) { for (int cols = 0; cols < totCols; cols++) { count++; } } return count; } /// <summary> /// Calculate and return total number of reserved seats /// </summary> /// <returns></returns> public int GetNumOfReserved() { int totReservedSeats = 0; for (int rows = 0; rows < totRows; rows++) { for (int col = 0; col < totCols; col++) { if (!string.IsNullOrEmpty(nameList[rows, col])) { totReservedSeats++; } } } return totReservedSeats; } /// <summary> /// Calculate and return total number of vacant seats /// </summary> /// <returns></returns> public int GetNumOfVacant() { int totVacantSeats = 0; for (int rows = 0; rows < totRows; rows++) { for (int col = 0; col < totCols; col++) { if (string.IsNullOrEmpty(nameList[rows, col])) { totVacantSeats++; } } } return totVacantSeats; } /// <summary> /// Return formated string with info about the seat, name, price and its status /// </summary> /// <param name="index"></param> /// <returns></returns> public string GetSeatInfoAt(int index) { int cols = ReturnColumn(index); int rows = ReturnRow(index); string strOut = string.Format("{0,2} {1,10} {2,17} {3,20} {4,35:f2}", rows+1, cols+1, seatList[rows, cols], nameList[rows, cols], priceList[rows, cols]); return strOut; } /// <summary> /// Send an array containing all seats in the cinema /// </summary> /// <returns></returns> public string[] GetSeatInfoString() { int count = totRows * totCols; if (count <= 0) return null; string[] strSeatInfoStrings = new string[count]; for (int i = 0; i < totRows * totCols; i++) { strSeatInfoStrings[i] = GetSeatInfoAt(i); } return strSeatInfoStrings; } /// <summary> /// Reserve seat if seat is vacant /// </summary> /// <param name="name"></param> /// <param name="price"></param> /// <param name="index"></param> /// <returns></returns> public bool ReserveSeat(string name, double price, int index) { int cols = ReturnColumn(index); int rows = ReturnRow(index); if (string.IsNullOrEmpty(nameList[rows, cols])) { nameList[rows, cols] = name; priceList[rows, cols] = price; seatList[rows, cols] = "Reserved"; return true; } else return false; } public string[] ReturnVacantSeats() { int totVacantSeats = int.Parse(GetNumOfVacant().ToString()); string[] vacantSeats = new string[totVacantSeats]; for (int i = 0; i < vacantSeats.Length; i++) { if (GetSeatInfoAt(i) == "Vacant") { vacantSeats[i] = GetSeatInfoAt(i); } } return vacantSeats; } public string[] ReturnReservedSeats() { int totReservedSeats = int.Parse(GetNumOfReserved().ToString()); string[] reservedSeats = new string[totReservedSeats]; for (int i = 0; i < reservedSeats.Length; i++) { if (GetSeatInfoAt(i) == "Reserved") { reservedSeats[i] = GetSeatInfoAt(i); } } return reservedSeats; } /// <summary> /// Cancel seat if seat is reserved /// </summary> /// <param name="index"></param> /// <returns></returns> public bool CancelSeat(int index) { int cols = ReturnColumn(index); int rows = ReturnRow(index); if (!string.IsNullOrEmpty(nameList[rows, cols])) { nameList[rows, cols] = ""; priceList[rows, cols] = 0.0; seatList[rows, cols] = "Vacant"; return true; } else { return false; } } /// <summary> /// Convert index to row and return value /// </summary> /// <param name="index"></param> /// <returns></returns> public int ReturnRow(int index) { int vectorRow = index; int row; row = (int)Math.Ceiling((double)(vectorRow / totCols)); return row; } /// <summary> /// Convert index to column and return value /// </summary> /// <param name="index"></param> /// <returns></returns> public int ReturnColumn(int index) { int row = index; int col = row % totCols; return col; } } } In MainForm, this is where I get ArgumentNullException: lbSeats.Items.AddRange(seatMngr.ReturnVacantSeats()); And this is the method where the array is to be returned containing all vacant seats: public string[] ReturnVacantSeats() { int totVacantSeats = int.Parse(GetNumOfVacant().ToString()); string[] vacantSeats = new string[totVacantSeats]; for (int i = 0; i < vacantSeats.Length; i++) { if (GetSeatInfoAt(i) == "Vacant") { vacantSeats[i] = GetSeatInfoAt(i); } } return vacantSeats; }

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• Using FFmpeg in c#?

  - by daniel

  So i know its a fairly big challenge but i want to write a basic movie player/converter in c# using the FFmpeg library. However the first obstacle i need to overcome is wrapping the FFmpeg library in c#. I downloaded ffmpeg but couldn't compile it on windows, so i downloaded a precompiled version for me. Ok awesome. Then i started looking for c# wrappers. I have looked around and have found a few wrappers such as SharpFFmpeg (http://sourceforge.net/projects/sharpffmpeg/) and ffmpeg-sharp (http://code.google.com/p/ffmpeg-sharp/). First of all i wanted to use ffmpeg-sharp as its LGPL and SharpFFmpeg is GPL. However it had quite a few compile errors. Turns out it was written for the mono compiler, i tried compiling it with mon but couldn't figure out how. I then started to manually fix the compiler errors myself, but came across a few scary ones and thought i'd better leave those alone. So i gave up on ffmpeg-sharp. Then i looked at SharpFFmpeg and it looks like what i want, all the functions P/Invoked for me. However its GPL? Both the AVCodec.cs and AVFormat.cs files look like ports of avcodec.c and avformat.c which i reckon i could port myself? Then not have to worry about licencing. But i wan't to get this right before i go ahead and start coding. Should I: Write my own c++ library for interacting with ffmpeg, then have my c# program talk to the c++ library in order to play/convert videos etc. OR Port avcodec.h and avformat.h (is that all i need?) to c# by using a whole lot of DllImports and write it entirely in c#? First of all consider that i'm not great at c++ as i rarely use it but i know enough to get around. The reason i'm thinking #1 might be the better option is that most FFmpeg tutorials are in c++ and i'd also have more control over memory management that if i was to do it in c#. What do you think? Also would you happen to have any usefull links (perhaps a tutorial) for using FFmpeg? EDIT: spelling mistakes

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• Sunrise / set calculations

  - by dassouki

  I'm trying to calculate the sunset / rise times using python based on the link provided below. My results done through excel and python do not match the real values. Any ideas on what I could be doing wrong? My Excel sheet can be found under .. http://transpotools.com/sun_time.xls # Created on 2010-03-28 # @author: dassouki # @source: [http://williams.best.vwh.net/sunrise_sunset_algorithm.htm][2] # @summary: this is based on the Nautical Almanac Office, United States Naval # Observatory. import math, sys class TimeOfDay(object): def calculate_time(self, in_day, in_month, in_year, lat, long, is_rise, utc_time_zone): # is_rise is a bool when it's true it indicates rise, # and if it's false it indicates setting time #set Zenith zenith = 96 # offical = 90 degrees 50' # civil = 96 degrees # nautical = 102 degrees # astronomical = 108 degrees #1- calculate the day of year n1 = math.floor( 275 * in_month / 9 ) n2 = math.floor( ( in_month + 9 ) / 12 ) n3 = ( 1 + math.floor( in_year - 4 * math.floor( in_year / 4 ) + 2 ) / 3 ) new_day = n1 - ( n2 * n3 ) + in_day - 30 print "new_day ", new_day #2- calculate rising / setting time if is_rise: rise_or_set_time = new_day + ( ( 6 - ( long / 15 ) ) / 24 ) else: rise_or_set_time = new_day + ( ( 18 - ( long/ 15 ) ) / 24 ) print "rise / set", rise_or_set_time #3- calculate sun mean anamoly sun_mean_anomaly = ( 0.9856 * rise_or_set_time ) - 3.289 print "sun mean anomaly", sun_mean_anomaly #4 calculate true longitude true_long = ( sun_mean_anomaly + ( 1.916 * math.sin( math.radians( sun_mean_anomaly ) ) ) + ( 0.020 * math.sin( 2 * math.radians( sun_mean_anomaly ) ) ) + 282.634 ) print "true long ", true_long # make sure true_long is within 0, 360 if true_long < 0: true_long = true_long + 360 elif true_long > 360: true_long = true_long - 360 else: true_long print "true long (360 if) ", true_long #5 calculate s_r_a (sun_right_ascenstion) s_r_a = math.degrees( math.atan( 0.91764 * math.tan( math.radians( true_long ) ) ) ) print "s_r_a is ", s_r_a #make sure it's between 0 and 360 if s_r_a < 0: s_r_a = s_r_a + 360 elif true_long > 360: s_r_a = s_r_a - 360 else: s_r_a print "s_r_a (modified) is ", s_r_a # s_r_a has to be in the same Quadrant as true_long true_long_quad = ( math.floor( true_long / 90 ) ) * 90 s_r_a_quad = ( math.floor( s_r_a / 90 ) ) * 90 s_r_a = s_r_a + ( true_long_quad - s_r_a_quad ) print "s_r_a (quadrant) is ", s_r_a # convert s_r_a to hours s_r_a = s_r_a / 15 print "s_r_a (to hours) is ", s_r_a #6- calculate sun diclanation in terms of cos and sin sin_declanation = 0.39782 * math.sin( math.radians ( true_long ) ) cos_declanation = math.cos( math.asin( sin_declanation ) ) print " sin/cos declanations ", sin_declanation, ", ", cos_declanation # sun local hour cos_hour = ( math.cos( math.radians( zenith ) ) - ( sin_declanation * math.sin( math.radians ( lat ) ) ) / ( cos_declanation * math.cos( math.radians ( lat ) ) ) ) print "cos_hour ", cos_hour # extreme north / south if cos_hour > 1: print "Sun Never Rises at this location on this date, exiting" # sys.exit() elif cos_hour < -1: print "Sun Never Sets at this location on this date, exiting" # sys.exit() print "cos_hour (2)", cos_hour #7- sun/set local time calculations if is_rise: sun_local_hour = ( 360 - math.degrees(math.acos( cos_hour ) ) ) / 15 else: sun_local_hour = math.degrees( math.acos( cos_hour ) ) / 15 print "sun local hour ", sun_local_hour sun_event_time = sun_local_hour + s_r_a - ( 0.06571 * rise_or_set_time ) - 6.622 print "sun event time ", sun_event_time #final result time_in_utc = sun_event_time - ( long / 15 ) + utc_time_zone return time_in_utc #test through main def main(): print "Time of day App " # test: fredericton, NB # answer: 7:34 am long = 66.6 lat = -45.9 utc_time = -4 d = 3 m = 3 y = 2010 is_rise = True tod = TimeOfDay() print "TOD is ", tod.calculate_time(d, m, y, lat, long, is_rise, utc_time) if __name__ == "__main__": main()

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• WPF ListBox not binding to INotifyCollectionChanged or INotifyPropertyChanged Events

  - by Gabe Anzelini

  I have the following test code: private class SomeItem{ public string Title{ get{ return "something"; } } public bool Completed { get { return false; } set { } } } private class SomeCollection : IEnumerable<SomeItem>, INotifyCollectionChanged { private IList<SomeItem> _items = new List<SomeItem>(); public void Add(SomeItem item) { _items.Add(item); CollectionChanged(this, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset)); } #region IEnumerable<SomeItem> Members public IEnumerator<SomeItem> GetEnumerator() { return _items.GetEnumerator(); } #endregion #region IEnumerable Members System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() { return _items.GetEnumerator(); } #endregion #region INotifyCollectionChanged Members public event NotifyCollectionChangedEventHandler CollectionChanged; #endregion } private SomeCollection collection = new SomeCollection(); private void Expander_Expanded(object sender, RoutedEventArgs e) { var expander = (Expander) sender; var list = expander.DataContext as ITaskList; var listBox = (ListBox)expander.Content; //list.Tasks.CollectionChanged += CollectionChanged; collection.Add(new SomeItem()); collection.Add(new SomeItem()); listBox.ItemsSource = collection; } and the XAML the outer listbox gets populated on load. when the expander gets expanded i then set the itemssource property of the inner listbox (the reason i do this hear instead of using binding is this operation is quite slow and i only want it to take place if the use chooses to view the items). The inner listbox renders fine, but it doesn't actually subscribe to the CollectionChanged event on the collection. I have tried this with ICollection instead of IEnumerable and adding INotifyPropertyChanged as well as replacing INotifyCollectionChanged with INotifyPropertyChanged. The only way I can actually get this to work is to gut my SomeCollection class and inherit from ObservableCollection. My reasoning for trying to role my own INotifyCollectionChanged instead of using ObservableCollection is because I am wrapping a COM collection in the real code. That collection will notify on add/change/remove and I am trying to convert these to INotify events for WPF. Hope this is clear enough (its late).

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