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• Restlet vs Spring MVC for Restful web service

  - by zachariahyoung

  I'm researching how best to create a Restful web service on Google app engine. My end goal is to have an Android application call a web service on GAE to post and get data. At this point I not sure what the best approach is. What I know at this point is Spring MVC 3 provide the ability to create web service but it does not provide a full implementation of JAX-RS. I also have read a few blog that talk about how Spring and Restlet can be integrated together. On the other side I have read that I could only use Restlet in GAE. I would also like provide a light web interface for users to view their posted data So my questions are the following. 1. Should I just use Restlet. 2. Should I just use Spring MVC to provide my Restful web service. 3. Should I use Spring and Restlet together. At this point I think I should invest my time in Restlet because that seems to be the best approach for calling web services in Android. I'm also debating if Spring MVC is just over kill. Any thoughts would be helpful.

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• Update iPhone UIProgressView during NSURLConnection download.

  - by Scott Pendleton

  I am using this code: NSURLConnection *oConnection=[[NSURLConnection alloc] initWithRequest:oRequest delegate:self]; to download a file, and I want to update a progress bar on a subview that I load. For that, I use this code: - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { [oReceivedData appendData:data]; float n = oReceivedData.length; float d = self.iTotalSize; NSNumber *oNum = [NSNumber numberWithFloat:n/d]; self.oDPVC.oProgress.progress = [oNum floatValue]; } The subview is oDPVC, and the progress bar on it is oProgress. Setting the progress property does not update the control. From what I have read on the Web, lots of people want to do this and yet there is not a complete, reliable sample. Also, there is much contradictory advice. Some people think that you don't need a separate thread. Some say you need a background thread for the progress update. Some say no, do other things in the background and update the progress on the main thread. I've tried all the advice, and none of it works for me. One more thing, maybe this is a clue. I use this code to load the subview during applicationDidFinishLaunching: self.oDPVC = [[DownloadProgressViewController alloc] initWithNibName:@"DownloadProgressViewController" bundle:nil]; [window addSubview:self.oDPVC.view]; In the XIB file (which I have examined in both Interface Builder and in a text editor) the progress bar is 280 pixels wide. But when the view opens, it has somehow been adjusted to maybe half that width. Also, the background image of the view is default.png. Instead of appearing right on top of the default image, it is shoved up about 10 pixels, leaving a white bar across the bottom of the screen. Maybe that's a separate issue, maybe not.

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• Problems with MediaRecorder class setting audio source - setAudioSource() - unsupported parameter

  - by arakn0

  Hello everybody, I'm new in Android development and I have the next question/problem. I'm playing around with the MediaRecorder class to record just audio from the microphone. I'm following the steps indicated in the official site: http://developer.android.com/reference/android/media/MediaRecorder.html So I have a method that initializes and configure the MediaRecorder object in order to start recording. Here you have the code: this.mr = new MediaRecorder(); this.mr.setAudioSource(MediaRecorder.AudioSource.MIC); this.mr.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); this.mr.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); this.mr.setOutputFile(this.path + this.fileName); try { this.mr.prepare(); } catch (IllegalStateException e) { Log.d("Syso", e.toString()); e.printStackTrace(); } catch (IOException e) { Log.d("Syso", e.toString()); e.printStackTrace(); } When I execute this code in the simulator, thanks to logcat, I can see that the method setAudioSource(MediaRecorder.AudioSource.MIC) gives the next error (with the tag audio_ipunt) when it is called: ERROR/audio_input(34): unsupported parameter: x-pvmf/media-input-node/cap-config-interface;valtype=key_specific_value ERROR/audio_input(34): VerifyAndSetParameter failed And then when the method prepare() is called, I get the another error again: ERROR/PVOMXEncNode(34): PVMFOMXEncNode-Audio_AMRNB::DoPrepare(): Got Component OMX.PV.amrencnb handle If I start to record bycalling the method start()... I get lots of messages saying: AudioFlinger(34):RecordThread: buffer overflow Then...after stop and release,.... I can see that a file has been created, but it doesn't seem that it been well recorderd. Anway, if i try this in a real device I can record with no problems, but I CAN'T play what I just recorded. I gues that the key is in these errors that I've mentioned before. How can I fix them? Any suggestion or help?? Thanks in advanced!!

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• C# Assembly.GetTypes() - ReflectionTypeLoadException

  - by Veskechky

  We implement a plugin framework for our application and load plugin assemblies using Assembly.Loadfrom. We then use GetTypes() and further examine the types with each plugin file for supported Interfaces. A path for the plugins is provided by the user and we cycle through each of the files in the folder to see if it (the plugin) supports our plugin interface. If it does, we create an instance, if not we move onto the next file. We build two versions of software from the one code base (appA_1 and appA_2). Loading the plugins works well when the plugins are loaded by the application that was built at the same time as the plugin file. However if we build appA_2 and point to the plugin folder of appA_1, we get an exception when GetTypes() is called. A basic version of our code is; var pluginAssembly = Assembly.LoadFrom(FileName); foreach (var pluginType in pluginAssembly.GetTypes()) { We get a "ReflectionTypeLoadException" exception. This is concerning because we want our application to be able to load the types of any plugin, built by anyone. Is there something we are missing?

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• TTStyledTextLabel offset between link and regular text when changing from default font

  - by Guy Ephraim

  I'm using Three20 TTStyledTextLabel and when I change the default font (Helvetica) to something else it creates some kind of height difference between links and regular text The following code demonstrate my problem: #import <Three20/Three20.h> @interface TestController : UIViewController { } @end @implementation TestController -(id)init{ self = [super init]; TTStyledTextLabel* label = [[[TTStyledTextLabel alloc] initWithFrame:CGRectMake(0, 0, 320, 230)] autorelease]; label.text = [TTStyledText textFromXHTML:@"<a href=\"aa://link1\">link</a> text" lineBreaks:YES URLs:YES]; [label setFont:[UIFont systemFontOfSize:16]]; [[self view] addSubview:label]; TTStyledTextLabel* label2 = [[[TTStyledTextLabel alloc] initWithFrame:CGRectMake(0, 230, 320, 230)] autorelease]; label2.text = [TTStyledText textFromXHTML:@"<a href=\"aa://link1\">link2</a> text2" lineBreaks:YES URLs:YES]; [label2 setFont:[UIFont fontWithName:@"HelveticaNeue" size:16]]; [[self view] addSubview:label2]; return self; } @end In the screen shot you can see that the first link is aligned and the second one isn't How do I fix it? I think there is a bug in the TTStyledTextLabel code...

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• Objective C - displaying data in NSTextView

  - by Leo

  Hi, I'm having difficulties displaying data in a TextView in iPhone programming. I'm analyzing incoming audio data (from the microphone). In order to do that, I create an object "analyzer" from my SignalAnalyzer class which performs analysis of the incoming data. What I would like to do is to display each new incoming data in a TextView in realtime. So when I push a button, I create the object "analyzer" whiwh analyze the incoming data. Each time there is new data, I need to display it on the screen in a TextView. My problem is that I'm getting an error because (I think) I'm trying to send a message to the parent class (the one taking care of displaying stuff in my TextView : it has a TexView instance variable linked in Interface Builder). What should I do in order to tell my parent class what it needs to display ? Or how sohould I design my classes to display automaticlally something ? Thank you for your help. PS : Here is my error : 2010-04-19 14:59:39.360 MyApp[1421:5003] void WebThreadLockFromAnyThread(), 0x14a890: Obtaining the web lock from a thread other than the main thread or the web thread. UIKit should not be called from a secondary thread. 2010-04-19 14:59:39.369 MyApp[1421:5003] bool _WebTryThreadLock(bool), 0x14a890: Tried to obtain the web lock from a thread other than the main thread or the web thread. This may be a result of calling to UIKit from a secondary thread. Crashing now... Program received signal: “EXC_BAD_ACCESS”.

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• How To Create Your Own x86 Operating System for Modern PC Computers

  - by mudge

  I'd like to create a new operating system for x86 PC computers. I'd like it to be 64-bit but possibly run as 32-bit as well. I have these kinds of questions: What kinds of things do you start working on first? Knowing where to start in writing your own operating system seems to me to be a tricky subject, so I am interested in your input. Generally how to go about making your own 32-bit/64-bit operating system, or good resources that mention useful information about going about writing your own operating system for x86 computers. I don't care how old sources are as long as they are still relevant and useful to what I am doing. I know that I will want it to have kernel drivers that access peripheral hardware directly. Where should I look for advice and documentation for programming and understanding the interface to peripheral hardware the operating system will communicate with? I will need to understand how the operating system will receive input and interact with keyboards, mice, computer monitors, hard drives, USB, etc. etc. This is probably the area I know least about. I have the Intel instruction set manuals and have been getting more familiar with assembly programming, so the CPU side of things is what I know the most about. At this point I'm thinking that I'd like to implement the Linux system calls within my operating system so that programs that run on Linux can run on my operating system. I want my operating system to use the ELF binary format. I wonder what obstacles I have to overcome to achieve this Linux compatibility. Are the main things implementing the system calls that Linux provides, and using the ELF format? What else? I am also interested in people's thoughts about why it might not be a good idea to make your own operating system, and why it is a good idea to make your own operating system. Thank you for any input.

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• Detecting validation errors in Silverlight 4

  - by jkohlhepp

  I'm using the new Silverlight 4 support for IDataErrorInfo. So I have a POCO object that has implemented the interface, and when a validation rule fires the Silverlight UI correctly shows the error. So that is all working fine. The POCO object looks like this: public class SomeDomainClass : IDataErrorInfo { public string SomeString { get; set; } public string Error { get { return String.Empty; } } public string this[string columnName] { get { if (columnName == "SomeString" && PolicyNumber.Contains("%")) return "SomeString cannot contain '%'. You'll ruin everything!!!"; return String.Empty; } } } However, I want to be able to detect whether or not there are any errors on the page. For example if I have a Save button and I want to disable it if there are errors, or display a message or something. What is the best way to detect if there are existing validation errors on the page? Is there a facility for this based around the IDataErrorInfo support in Silverlight? Or do I have to track it in the domain model myself?

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• NetBeans generates JpaController with errors

  - by Xorty

  Hi, I am using NetBeans 6.8 for building Spring MVC application. Techonologies : Spring MVC 2.5 Derby DB Hibernate for ORM GlassFish v3 server I use New JPA Controller Classes from Entity Classes for adding ORM file. It is supposed to generate class for managing queries with my POJO files. Problem is, that NetBeans generates following code, and won't compile : public int getBrandCount() { EntityManager em = getEntityManager(); try { CriteriaQuery cq = em.getCriteriaBuilder().createQuery(); Root<Brand> rt = cq.from(Brand.class); cq.select(em.getCriteriaBuilder().count(rt)); Query q = em.createQuery(cq); return ((Long) q.getSingleResult()).intValue(); } finally { em.close(); } } At the picture, there is NetBeans error : It looks like method getCriteriaBuilder of Entity Manager Interface is unimplemented. Or some other reason why I can't use it in code. I don't know what other info should I provide, so please ask if anything comes to your mind. Thanks

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• Using @Context, @Provider and ContextResolver in JAX-RS

  - by Tamás

  I'm just getting acquainted with implementing REST web services in Java using JAX-RS and I ran into the following problem. One of my resource classes requires access to a storage backend, which is abstracted away behind a StorageEngine interface. I would like to inject the current StorageEngine instance into the resource class serving the REST requests and I thought a nice way of doing this would be by using the @Context annotation and an appropriate ContextResolver class. This is what I have so far: In MyResource.java: class MyResource { @Context StorageEngine storage; [...] } In StorageEngineProvider.java: @Provider class StorageEngineProvider implements ContextResolver<StorageEngine> { private StorageEngine storage = new InMemoryStorageEngine(); public StorageEngine getContext(Class<?> type) { if (type.equals(StorageEngine.class)) return storage; return null; } } I'm using com.sun.jersey.api.core.PackagesResourceConfig to discover the providers and the resource classes automatically, and according to the logs, it picks up the StorageEngineProvider class nicely (timestamps and unnecessary stuff left out intentionally): INFO: Root resource classes found: class MyResource INFO: Provider classes found: class StorageEngineProvider However, the value of storage in my resource class is always null - neither the constructor of StorageEngineProvider nor its getContext method is called by Jersey, ever. What am I doing wrong here?

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• How can we leverage NSAppearance?

  - by Brad Allred

  I was reading the Cocoa documentation and stumbled across some new features in the 10.9 API. From the docs I gather that the NSAppearance class and a related protocol NSAppearanceCustomization Appear to be a means of customizing the appearance of NSView and its descendants. An NSAppearance object represents a file that specifies a standard or custom appearance that applies to a subset of UI elements in an app. An app can contain multiple appearance files and—because NSAppearance conforms to NSCoding—you can use Interface Builder to assign UI elements to an appearance. Typically, you customize a window by using Xcode to create an appearance file that contains the views you want to customize and the custom art that should be applied to them. Xcode transforms the file’s art content into a runtime format that AppKit can draw when the specified views are displayed. Well that all sounds neat and promising, but nowhere in the documentation can I find what an appearance file is or how to make one. Google searches are coming up empty other than for the thin documentation I have already read. I do see that UIKit has a similar sounding UIAppearance class, but from what I can tell this is not a straight port of the UIKit class. Does anybody know how to make this magic "appearance file" and what exactly we can do with it?

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• Development process for an embedded project with significant hardware changes

  - by pierr

  I have a good idea about Agile development process but it seems it does not fit well with a embedded project with significant hardware changes. I will describe below what we are currently doing (Ad-hoc way, no defined process yet). The changes are divided into three categories and different processes are used for each of them: complete hardware change example : use a different video codec IP a) Study the new IP b) RTL/FPGA simulation c) Implement the legacy interface - go to b) d) Wait until hardware (tape out) is ready f) Test on the real hardware hardware improvement example : enhance the image display quality by improving the underlying algorithm a) RTL/FPGA simulation b) Wait until hardware and test on the hardware Minor change example : only change hardware register mapping a) Wait until hardware and test on the hardware The worry is it seems we don't have too much control and confidence about software maturity for the hardware changes as the bring-up schedule is always very tight and the customer desired a seamless change when updating to a new version of hardware. How did you manage this kind of hardware change? Did you solve that by a Hardware Abstraction Layer (HAL)? Did you have a automatic test for the HAL layer? How did you test when the hardware platform is not even ready? Do you have well-documented processes for this kind of change?

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• How to handle payment types with varying properties in the most elegant way.

  - by Byron Sommardahl

  I'm using ASP.NET MVC 2. Keeping it simple, I have three payment types: credit card, e-check, or "bill me later". I want to: choose one payment type display some fields for one payment type in my view run some logic using those fields (specific to the type) display a confirmation view run some more logic using those fields (specific to the type) display a receipt view Each payment type has fields specific to the type... maybe 2 fields, maybe more. For now, I know how many and what fields, but more could be added. I believe the best thing for my views is to have a partial view per payment type to handle the different fields and let the controller decide which partial to render (if you have a better option, I'm open). My real problem comes from the logic that happens in the controller between views. Each payment type has a variable number of fields. I'd like to keep everything strongly typed, but it feels like some sort of dictionary is the only option. Add to that specific logic that runs depending on the payment type. In an effort to keep things strongly typed, I've created a class for each payment type. No interface or inherited type since the fields are different per payment type. Then, I've got a Submit() method for each payment type. Then, while the controller is deciding which partial view to display, it also assigns the target of the submit action. This is not elegant solution and feels very wrong. I'm reaching out for a hand. How would you do this?

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• VB .NET DirectCast and Type Reflection

  - by msarchet

  The application that I am working on has a generic Parent Form called RSChild, that is used to perform some operations depending on whether or not the control that is contained within it is in a MdiTabManager or inside of its own modal form. Then the actual User Controls contained within Inherit from a Interface Called ObjectEdit (Objects that we allow to be edited). At a point in my code I am doing this. Public Function doesTabExist(ByVal id As Integer, ByVal recordType As Enums.eRecordType) As Boolean Dim alikePages As Object = (From tabs In DirectCast(Control.FromHandle(MainForm.SharedHandle), MainForm).XtraTabbedMdiManager1.Pages Where DirectCast(tabs.MdiChild, RSChild).RSObject.RecordType = recordType Select tabs) For Each page As DevExpress.XtraTabbedMdi.XtraMdiTabPage In alikePages Select Case recordType Case Enums.eRecordType.Doctor If id = DirectCast(castTabPageToRSChild(page).RSObject, UI.Doctor).ID Then pageToActive(page) Return True End If 'rest of the cases so the case block is repeated 10 times' End Function And my castTabPageToRSChild(page) is a lambda function as Such Dim castTabPageToRSChild As Func(Of DevExpress.XtraTabbedMdi.XtraMdiTabPage, RSChild) = Function(page) DirectCast(page.MdiChild, RSChild) So my Question is, I have about 10 case statements, all because I can't seem to find a way to use reflection to get the underlying Type of the RSObject Object. So I have the whole If block repeated over and over. I tried doing castTabPageToRSChild(page)RSObject.GetType and using that in the DirectCast and I also tried creating another object that was separate from that and doing the same thing. My code works as intended I'm just trying to see if there is a manner in which I didn't have a lot of replicated code. My vision would be to do something like For Each page As XtraMdiTabPage In alikePages If id = DirectCast(castTabPageToRSchild(page).RSObject, TypeOfThatObject).Id Then Return True Next However I have a feeling this is not possible due to the behavior of DirectCast.

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• UIWebView not loading URL when URL is passed from UITableView

  - by Mark Hazlett

  Hey Everyone, So i'm building a webView into my application to show the contents of a URL that I am passing from a selection in a UITableView. I know the UIWebView is loading content properly because if you hard code say http://www.google.ca into the NSURL then it loads fine, however when I'm passing the URL that I parsed from an RSS feed back from the UITableView it won't load the URL properly. I tried the debugger and the URL is coming out as nil right before I try and parse it, however I can use NSLog to print the value of it out to the console. here's the code in my UIViewController that has my UIWebView #import <UIKit/UIKit.h> @interface ReadFeedWebViewController : UIViewController { NSString *urlToGet; IBOutlet UIWebView *webView; } @property(nonatomic, retain) IBOutlet UIWebView *webView; @property(nonatomic, retain) NSString *urlToGet; @end Here's the code for my implementation's viewDidLoad method... // Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad { [super viewDidLoad]; NSLog(@"Url inside Web View Controller - %@", urlToGet); NSURL *url = [NSURL URLWithString:urlToGet]; NSURLRequest *requestObj = [NSURLRequest requestWithURL:url]; [self.webView loadRequest:requestObj]; } Once again, I can print the URL to NSLog fine and if I hard code the URL into the NSURL object then it will load fine in the UIWebView. Here is where I'm setting the value in my UITableViewController... - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { ReadFeedWebViewController *extendedView = [[ReadFeedWebViewController alloc] init]; int storyIndex = [indexPath indexAtPosition: [indexPath length] - 1]; extendedView.urlToGet = [[stories objectAtIndex: storyIndex] objectForKey:@"link"]; //NSLog([[stories objectAtIndex: storyIndex] objectForKey:@"summary"]); NSLog([[stories objectAtIndex: storyIndex] objectForKey:@"link"]); [self.navigationController pushViewController:extendedView animated:YES]; [extendedView release]; } However, since I can print the value using NSLog in the extendedView view controller I know it's being passed properly. Cheers

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• How can I programmatically link an UIView or UIImageView with an event like "touch up inside"?

  - by Thanks

  Interface Builder will only allow me to hook up such events for an button. But like in HTML, I just want to haven an blank UIImageView where - as soon as the user taps it - a method is invoked. I hope there is some cool programmatically way of doing that, which I don't know about. UPDATE: In my View Controller that creates the UIImageView I tried to do this: SEL actionSelector = @selector(doSomethingWhenImageIsTouched:); [self.myUIImageView addTarget:nil action:actionSelector forControlEvents:UIControlEventTouchUpInside]; The compiler gives me a warning, that UIImageView may not respond to addTarget:... what do I have to do so that it works with an UIImageView. I see in the docs that UIImageView does not inherit from UIControl, but addTarget: is part of UIControl. UPDATE: I ended up creating an UIButton after creating the UIImageView. Then I set the frame of that button to the frame of the UIImageView, and alpha to 0.1f. For some reason, it will not work if alpha is 0.0f. And then, I did that cool addTarget: thing...

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• Apache Mina Server Restart java.net.BindException: Address already in use

  - by Kosaki

  Hello, I have a rather annoying problem in my server application. I bind Apache Mina with the following code: acceptor.bind(new InetSocketAddress(PORT)); Where acceptor is an NioSocketAcceptor. Over a HTTP interface I can shutdown the server so I can restart it. Server.ioAcceptor.unbind(new InetSocketAddress(Server.PORT)); for(IoSession session: Server.ioAcceptor.getManagedSessions().values()){ if(session.isConnected() && !session.isClosing()){ session.close(false); } } Server.ioAcceptor.dispose(); Main.transport.stop(); Logger.getRootLogger().warn("System going down. Request from "+context.getRemoteAddress()); System.exit(10); This is the code I use to stop the Mina server. However if I try to start the server again in the next couple of minutes. (Somewhere between 5 minutes and 15 minutes) I get the following exception on start up: java.net.BindException: Address already in use I also tried a simple ioAcceptor.unbind() but there was no difference. The server runs on Centos 5 with OpenJDK. Apache Mina version is 2.0 RC1. Thank you in advance for any ideas on how to resolve this.

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• Can't get NSTableView to display data.

  - by Alberto

  Hi! I see there are a lot of questions about this, but nothing helped me to get this work. I have a nib with a NSTableView with three columns (with the right identifiers set) and a class named ShortcutsTableController. In the nib I have a NSObject with class value ShortcutsTableController. I also connected the NSTableView to my controller as I usually do. This is header ShortcutsTableController.h. #import <Cocoa/Cocoa.h> @interface ShortcutsTableController : NSObject <NSTableViewDataSource> { IBOutlet NSTableView *shortcutsTable; NSMutableArray *shortcutsList; } - (int) numberOfRowsInTableView: (NSTableView*) tableView; - (id)tableView:(NSTableView *)tableView objectValueForTableColumn:(NSTableColumn *)tableColumn row:(int)row; @property (assign) IBOutlet NSTableView *shortcutsTable; - (void)setUpTable; @end And this is the implementation file ShortcutsTableController.m. #import "ShortcutsTableController.h" @implementation ShortcutsTableController @synthesize shortcutsTable; - (void)setUpTable { shortcutsList = [[NSMutableArray alloc] init]; NSDictionary *dict1 = [NSDictionary dictionaryWithObjectsAndKeys: @"blabla", @"nameColumn", @"Bla bla bla", @"shortcutColumn", @"Ribla", @"actionColumn", nil]; [shortcutsList addObject:dict1]; [shortcutsTable setDataSource:self]; [shortcutsTable reloadData]; } -(int) numberOfRowsInTableView: (NSTableView *) tableView { return [shortcutsList count]; } - (id)tableView:(NSTableView *)tableView objectValueForTableColumn:(NSTableColumn *)tableColumn row:(int)row { if (row != -1) return [[shortcutsList objectAtIndex:row] objectForKey:[tableColumn identifier]]; return nil; } @end But when i try to build nothing appears in the NSTableView. No errors, no warnings. Note that I call setUpTable from within the Delegate Class Method awakeFromNib. Is there something I am doing wrong? Thank you for you help. —Albé UPDATE. Added lines @property (assign) IBOutlet NSTableView *shortcutsTable; in header and @synthesize shortcutsTable; in implementation. Nothing changes. :(

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• How do I break down an NSTimeInterval into year, months, days, hours, minutes and seconds on iPhone?

  - by willc2

  I have a time interval that spans years and I want all the time components from year down to seconds. My first thought is to integer divide the time interval by seconds in a year, subtract that from a running total of seconds, divide that by seconds in a month, subtract that from the running total and so on. That just seems convoluted and I've read that whenever you are doing something that looks convoluted, there is probably a built-in method. Is there? I integrated Alex's 2nd method into my code. It's in a method called by a UIDatePicker in my interface. NSDate *now = [NSDate date]; NSDate *then = self.datePicker.date; NSTimeInterval howLong = [now timeIntervalSinceDate:then]; NSDate *date = [NSDate dateWithTimeIntervalSince1970:howLong]; NSString *dateStr = [date description]; const char *dateStrPtr = [dateStr UTF8String]; int year, month, day, hour, minute, sec; sscanf(dateStrPtr, "%d-%d-%d %d:%d:%d", &year, &month, &day, &hour, &minute, &sec); year -= 1970; NSLog(@"%d years\n%d months\n%d days\n%d hours\n%d minutes\n%d seconds", year, month, day, hour, minute, sec); When I set the date picker to a date 1 year and 1 day in the past, I get: 1 years 1 months 1 days 16 hours 0 minutes 20 seconds which is 1 month and 16 hours off. If I set the date picker to 1 day in the past, I am off by the same amount. Update: I have an app that calculates your age in years, given your birthday (set from a UIDatePicker), yet it was often off. This proves there was an inaccuracy, but I can't figure out where it comes from, can you?

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• Get Alfresco extension properties with OpenCMIS

  - by AJPerez

  I'm writing an OpenCMIS based application, which extracts some data from Alfresco 3.3. It works fine with standard CMIS properties such as cmis:name or cmis:contentStreamMimeType; however, I can't access Alfresco especific properties, which are present on the CMIS AtomPub feed as "Alfresco extensions": <cmisra:object> <cmis:properties> <cmis:propertyString propertyDefinitionId="cmis:name" displayName="Name" queryName="cmis:name"> <cmis:value>test document</cmis:value> </cmis:propertyString> <cmis:propertyString propertyDefinitionId="cmis:contentStreamMimeType" displayName="Content Stream MIME Type" queryName="cmis:contentStreamMimeType"> <cmis:value>text/html</cmis:value> </cmis:propertyString> ... <alf:aspects> ... <alf:properties> <cmis:propertyString propertyDefinitionId="cm:description" displayName="Description" queryName="cm:description"> <cmis:value>This is just a test document</cmis:value> </cmis:propertyString> </alf:properties> </alf:aspects> </cmis:properties> </cmisra:object> Is there any way in which I can get the value of cm:descripcion, with OpenCMIS? My guess is that I need to use the DocumentType interface instead of Document, and then call its getExtensions() method. But I don't know how to get an instance of DocumentType. Any help would be really appreciated. Regards Edit: altough Florian's answer already worked out for me, I've just realized that I can get these properties' values with CMIS SQL, too: select d.*, t.*, a.* from cmis:document d join cm:titled t on d.cmis:objectid = t.cmis:objectid join cm:author a on d.cmis:objectid = a.cmis:objectid where t.cm:description like ...

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• WCF Service : WSHttpBinding

  - by jitm

  Hello, I've created the test self-hosted wcf application and tried to add support https. Code of server application is: using System; using System.Security.Cryptography.X509Certificates; using System.ServiceModel; using System.ServiceModel.Description; using System.ServiceModel.Security; namespace SelfHost { class Program { static void Main(string[] args) { string addressHttp = String.Format("http://{0}:8002/hello", System.Net.Dns.GetHostEntry("").HostName); Uri baseAddress = new Uri(addressHttp); WSHttpBinding b = new WSHttpBinding(); b.Security.Mode = SecurityMode.Transport; b.Security.Transport.ClientCredentialType = HttpClientCredentialType.Certificate; Uri a = new Uri(addressHttp); Uri[] baseAddresses = new Uri[] { a }; ServiceHost sh = new ServiceHost(typeof(HelloWorldService), baseAddresses); Type c = typeof(IHelloWorldService); sh.AddServiceEndpoint(c, b, "hello"); sh.Credentials.ServiceCertificate.SetCertificate( StoreLocation.LocalMachine, StoreName.My, X509FindType.FindBySubjectName,"myCert"); sh.Credentials.ClientCertificate.Authentication.CertificateValidationMode = X509CertificateValidationMode.PeerOrChainTrust; try { sh.Open(); string address = sh.Description.Endpoints[0].ListenUri.AbsoluteUri; Console.WriteLine("Listening @ {0}", address); Console.WriteLine("Press enter to close the service"); Console.ReadLine(); sh.Close(); } catch (CommunicationException ce) { Console.WriteLine("A commmunication error occurred: {0}", ce.Message); Console.WriteLine(); } catch (System.Exception exc) { Console.WriteLine("An unforseen error occurred: {0}", exc.Message); Console.ReadLine(); } } } [ServiceContract] public interface IHelloWorldService { [OperationContract] string SayHello(string name); } public class HelloWorldService : IHelloWorldService { public string SayHello(string name) { return string.Format("Hello, {0}", name); } } } What name(address) should I out into line sh.AddServiceEndpoint(c, b, "hello"); because "hello" is incorrect ? Thanks.

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• not enough actual parameters ?

  - by omair iqbal

  The following program returns error : e2035 not enough actual parameters in 2 places (lines 39 and 45) and is not compiling. Can someone please help me out? Can I put 0 or null in place of parameters here? unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs,ComObj,shdocvw,activex, StdCtrls; type TForm1 = class(TForm) Button1: TButton; procedure Button1Click(Sender: TObject); private { Private declarations } public { Public declarations } end; var Form1: TForm1; implementation {$R *.dfm} procedure TForm1.Button1Click(Sender: TObject); var mybrowser : iwebbrowser2; myUserName, myPassword,loginURL : string; Flags: OleVariant; begin Flags := navOpenInNewWindow; MyBrowser := CreateOleObject('InternetExplorer.Application') as IWebBrowser2; MyBrowser.Navigate('http://www.gmail.com',flags,'_blank'); myUserName := 'UserName'; myPassword := 'password'; loginURL:='javascript:var Email = document.getElementById(''Email'');Email.value=''' + myUserName + ''';var Password = document.getElementById(''Passwd'');Password.value=''' + myPassword + ''';var SignIn = document.getElementById(''signIn'');SignIn.click();'; MyBrowser.Navigate(loginURL); end; end.

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• MATLAB Builder NE crash apppool on IIS 7.5

  - by Alkersan

  Im developing a web user interface for MATLAB functions with ASP.NET. Ive started with studying demos and stucked with such problem. I created a MyComponent.dll assembly with deploytool from MATLAB 2010a, target framework - 3.5. This component has one function GetKnot() which returns a figure. function df = getKnot() f = figure('Visible', 'off'); knot; df = webfigure(f); close(f); end Then I made simple webapp in visual studio 2008 sp1, with only one page Default.aspx. I added references to MWArray.dll, WebFiguresService.dll and MyComponent.dll. The codeBehind is: using System; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using MyComponent; using MathWorks.MATLAB.NET.WebFigures; namespace MATLAB_WebApplication { public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { var myComponentClass = new MyComponentClass(); var x = myComponentClass.getKnot(); //WebFigureControl1.WebFigure = new WebFigure(); } } } When I run this page on Visual Studio`s Development web server - everything is fine, figure works. But when I`m trying to deploy webfigure on my local iis 7.5 which runs on Win7 x32 - iis app pool crashes. There is an entry in System Event Log "A process serving application pool 'Classic .NET AppPool' suffered a fatal communication error with the Windows Process Activation Service. The process id was '3676'. The data field contains the error number 6D000780". This happens when MyComponent is instantiating. What I could forget when moved to IIS? Other examples, like magic square console application, runs perfect, and every matlab component instantiating, but not in IIS environment.

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• Running and managing NSTimer in different NSThread/NSRunLoop

  - by mips

  I'm writing a Cocoa application, with a GUI designed in Interface Builder. I need to schedule background activity (at regular intervals) without blocking the UI, so I run it in a separate thread, like this: - (void)applicationDidFinishLaunching:(NSNotification *)aNotification { [self performSelectorInBackground:@selector(schedule) withObject:nil]; } - (void) schedule { NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init]; NSRunLoop* runLoop = [NSRunLoop currentRunLoop]; timer = [[NSTimer scheduledTimerWithTimeInterval:FEED_UPDATE_INTERVAL target:activityObj selector:@selector(run:) userInfo:nil repeats:YES] retain]; [runLoop run]; [pool release]; } I retain the timer, so I can easily invalidate and reschedule. Problem: I must also fire the run: method in response to GUI events, so it is synchronous (i.e. a "perform activity" button). Like this: [timer fire]; I could do this with performSelectorInBackground too, and of course it doesn't block the UI. But this synchronous firings run in another runloop! So I have no guarantee that they won't overlap. How can I queue all of my firings on the same runloop?

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• Creating a drop-down row in displaytag

  - by bphilipnyc

  I am currently using displaytag for tabular data, but would like to create a "kayak.com-like" interface where when a user clicks a row, the user is shown more details about the particular row without a page refresh. I tried using a decorator to return javascript that would do this. The javascript is executed, but it is only reflected in the column where it was rendered. I am looking to create a new row with the data. e.g.: public class CustomDecorator extends TableDecorator { public String getDetailsRow() { MyObject object = (MyObject)this.getCurrentRowObject(); return "<a onClick=\"myjsfunction(object.getId()); return true\">Details</a>"; } } ...and in the JSP I would have a detailsRow property nested between the display:table tags: <display:column property="detailsRow" sortable="false" /> Any tips on how to create a new row? The solution may be in the way that the javascript is written - I'm not an expert with Javascript, so any tips would be appreciated. Is there a better way to do this with displaytag? I don't know of any explicit integration that displaytag has with javascript (like an "onclick" parameter) either. This is my first question on stackoverflow, btw - so please let me know whether you need more detail.

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