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• Laptop freezes and seems to crash, but continues working after waiting for a few minutes [closed]

  - by Corwin

  I've had this old notebook laying around and because i was missing a second machine (My wife usually steals the first ;) ) I considered installing Linux. As a php developer I work with Linux servers (usually fedora) on a daily basis and because its an older machine that I want to use for development, linux seemed the best option. Speedwise I expected a good experience, better than Windows 7 on the same machine. The results where terrible. I tried ubuntu 12.04. The shell never got past showing the background. The system doesn't freeze since the mouse still works and I can use ctrl+alt+f2 etc to enter terminal mode. I expected hardware problems en even exchanged the harddisk en Ram memory. No luck though, so I started over and tried 11.10 Same results so I tried 10.04.4 which did install properly. Not sure if unity was the problem, but it seems likely. But then I tried simply things like surfing on the net, the system frooze and I thought it crashed so after a few minutes I pulled the plug and rebooted. But it happened again and I waited. After a few minutes the system came back to life like nothing happened. Long story short. Besides the fact that the entire interface is very sluggish, any and all graphical functions freezes the system. The more elaborate the animation would be, the longer it freezes. I switch chromium from window to fullscreenmode and had to wait 15 minutes to continue. I don't see the animation that's probably supposed to be in between. It just freezes and then after unfreezing its fullscreen. I don't think its a bug. I suspect the problem is with my graphics card. Like I said, its and old system. So old that I can't even find the original Ati drivers anywere. (I'll post the details of my system at the end of my post) I'm at a loss as to what to do next. I tried other Distro's. So far only dreamlinux works normally. Linux Mint won't start as a live CD. I think I simply need a driver update but I can't find them anywhere. Does anyone have the same experience ? Maybe even someone who has or had the same notebook running Ubuntu at some point ? Anyway, here are the specs: http://www.nec-driver.com/nec-driver/NEC-Versa-P550---FP550-Driver_421.html

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• How you choose your first job as a programmer? [on hold]

  - by sliter

  For Brief I am a recently graduated CS student. I am looking for a job these days, but I have no idea what kind of software development jobs I like(embedded system,web development or else...). And I am looking for your advice. Here is a little more While I was a student, I had an one year internship experience as a system engineer in a semi-conductor company where I wrote Linux driver, tuned system performance, etc.. I was happy about this experience as it allowed me to deepen my understanding of the operating system and different low level things. And I thought "Em, I will continue in the embedded area after I graduate". At the end of my study, I am doing an another internship in web development, both front-end and back-end. And I also enjoys a lot the process of learning new things and making it work (Backbone, Node, socketio, etc..). Now, when I am looking for a software development position, I do not know what to apply! All I know is that I want a job which allows me to keep up with the trends instead of repeating. But besides this, I've no idea what specific type of job I want to do. Turn back to embedded system? Continue with web development? Change to other promising areas(data mining)? All these development positions makes no big difference to me. But I think this is not good and I need some criteria at choosing. So I am looking for advice and I would really appreciate if you can share your experience.

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• ArrayList in Java [on hold]

  - by JNL

  I was implementing a program to remove the duplicates from the 2 character array. I implemented these 2 solutions, Solution 1 worked fine, but Solution 2 given me UnSupportedoperationException. I am wonderring why i sthat so? The two solutions are given below; public void getDiffernce(Character[] inp1, Character[] inp2){ // Solution 1: // ********************************************************************************** List<Character> list1 = new ArrayList<Character>(Arrays.asList(inp1)); List<Character> list2 = new ArrayList<Character>(Arrays.asList(inp2)); list1.removeAll(list2); System.out.println(list1); System.out.println("*********************************************************************************"); // Solution 2: Character a[] = {'f', 'x', 'l', 'b', 'y'}; Character b[] = {'x', 'b','d'}; List<Character> al1 = new ArrayList<Character>(); List<Character> al2 = new ArrayList<Character>(); al1 = (Arrays.asList(a)); System.out.println(al1); al2 = (Arrays.asList(b)); System.out.println(al2); al1.removeAll(al2); // retainAll(al2); System.out.println(al1); }

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• Replication with AK8

  - by Steve Tunstall

  Hello folks, This came up today and I want to make sure it's clear. Remember the "deferred update" I spoke about in my "Upgrade to AK8" entry just a bit ago? It's important to understand that this deferred update changes the way replication works. It is necessary that systems with the deferred update applied only replicate with other systems that have also had this deferred update applied. So if you apply it, your system can NOT replicate with ANY other system that has NOT had it applied, even if that other system is running AK8!!! Got it??? Remember, we do have a new version of the 2011 code for the older systems that do not want to upgrade to AK8. This 2011.1.8 code ALSO HAS this same deferred update in it. So, if you upgrade your system to AK8, and then apply the deferred update, and you have another system running either 2011.1.8 or AK8, you can replicate with them again once they apply the deferred update for multiple initiator groups. Yes, even if you're not using LUNs. Here is what it looks like if you try. It will fail.

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• Accessing controls of .aspx file in .aspx.cs without any declaration.!!??

  I am able to access the controls of ".aspx" file in ".aspx.cs" directly without any declaration in ".aspx.cs" or in designer.cs. How is this possible? This is happeing only if I open website as using File System. Create a new ASP.NET web site application with Visual Studio 2008. So following three files will be created automatically              "Default.aspx",              "Default.aspx.cs"              "Default.designer.cs" Now Delete "Default.designer.cs" perminently. Just create a button in Default.aspx file    <asp:Button runat="server" Text="Save Plan" ID="btnSave" />   Close the Solution and open the website as File System.               File -> Open Web Site -> File System -> Select Web Site Folder and Open the project.                   Now btnSave is automatically recognized in Default.aspx.cs without any declaration in Default.aspx.cs as bellow                            System.Web.UI.WebControls.Button btnSave; How btnSave is being recognized by .cs file without defining it anywhere as an object of System.Web.UI.WebControls.Button? Note: This happens only if you open Web Site from File System.           and No Declaration at all for btnSave. Please refer this article on this. span.fullpost {display:none;}

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• How to get the finer resolution for asus eee pc 1000hd after installing windows7?

  - by vij

  Hi i have installed windows 7 on my 2 year old ASUS EEE PC 1000HD. The default Operating system it came with was windows xp. Now the system is working fine but there are some display problems which i am going to state now: Firstly, during booting windows 7 logo is missing. There are no options for resolution changes. The only option possible is 800x600. The boot time is quite long when compared to xp. The graphics driver used in this system is STANDARD VGA GRAPHICS ADAPTER. The processor is intel celeron with 1GB RAM. I think with these requirements it is possible to get windows 7 with finer resolution. But why these problems are occurring?I even tried to install graphics driver provided by intel for this system. But i ve got the error message "this system doesn't meet the necessary requirements". So how to overcome this problem??

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• linux - Is Debian "lighter" than Ubuntu?

  - by user2983756

  I currently run Linux Mint 14 KDE on a "semi-old" machine I use for working and surfing the web - it was the first Linux system I ever used (running away from old Win XP), so I picked a complete system that would have most of my basic needs installed (I didn't even know what exactly all those needs were at the time). The thing is, my computer is becoming really old and Mint is a cluttered system, and for the next installation I'm going to try and install a "raw" system and get everything from the online repos. My question is: Since Ubuntu is Debian-based, does that make it consume more resources than its base system? If that isn't the difference, which one is "lighter" in that sense?

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• Map rendering Libgdx Java

  - by user3165683

  Ok, so I am trying to create a 2D non-movable random tiled map. This is what I have so far: private void generateTile(){ System.out.print("tiletry1"); while(loadedTiles != 8100){ System.out.print("tiletry"); Texture currentTile = null; int tileX = 0; int tileY = 0; if (tileX == 120); tileY = 16; tileX = 0; game.batch.begin(); switch(MathUtils.random(2)){ case 0: //game.batch.draw(tile1, tileX, tileY); System.out.print("tile1"); currentTile = tile1; break; case 1: //game.batch.draw(tile2, tileX, tileY); System.out.print("tile2"); currentTile = tile2; break; case 2: //game.batch.draw(tile3, tileX, tileY); System.out.print("tile3"); currentTile = tile3; break; } tileX+=16; loadedTiles ++; game.batch.draw(currentTile, tileX, tileY); game.batch.end(); } } However, I can't see any of the tiles and the screen just looks green. This method is above my render method which I have: camera.update(); batch.setProjectionMatrix(camera.combined); Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT); game.batch.begin(); //other render stuff Why am I not able to see the tiles?

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• Ubuntu 12.04 Running Faster Than Normal

  - by One Zero

  I have just installed a new copy of Ubuntu 12.04 on my laptop . i have noticed that my system is running 4x to 5x faster than normal . i have just install Vmware Desktop & centos for testing something . i have noticed that i has installed in just like less than 1 minute !! My system is booting so fast that after starting my laptop i got GUI in like 10 to 13 sec & shutting down in like 2 to 3 sec & all programs ( Firefox , Chrome , etc ) running so fast that i can see .... The only change i made after installation is cat /proc/sys/vm/swappiness 1 How do I configure swappiness? The System is Dell N 5110 i7 with 8GB of RAM So my question is that what should i look for that why my system running very fast ?

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• Ubuntu 13.04 Raring Ringtail not booting

  - by Kristjan

  Hello my problem is getting annoying. Its my hard drive whats being funny i guess but here's the problem , before updating ubuntu everything was fine , and now im stuck on loading screen with white and orange dots , when i press S the system crashes and gives black screen and ctrl+alt+f1 doesnt show anything , system works fine on liveCD but i want it working on harddrive , any suggestions what to do , if i can access harddrive but not system itself? how i could fix it? i hope someone can help me out real soon.

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• UnityEngine.Vector2 does not contian a definition for "Set".... using futile

  - by FreshJays

  I am a bit lost, I am using futile and I am just trying to run the demo. But I keep getting UnityEngine.Vector2 does not contian a definition for "Set" in just one class, my using statments are: using System; using UnityEngine; using System.Collections; using System.Collections.Generic; When I look at the documents, I see that Set is a function http://docs.unity3d.com/Documentation/ScriptReference/Vector2.html I am using version 3.4.2 (in futile its happening in just the FAtlas class)

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• Roll Your Own MsgBox

  How to create a custom message box from first principles, including system sounds and print capability

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• DBFS ? Windows ???????????

  - by katsumii

  DBFS ??? 11gR2 ????????????????????????JDBC?ODBC?ADO??????????????????????????????????????Oracle Database File System??????????????????????????·????(OS)??????????????????????????????????????????????OOW????????DBFS???????????????Oracle San Francisco 2012Database File System provides a file system interface to files stored in the database?????????????PDF?????SAMBA????????????????????????????????????????????????????????????????????????????????????????????????OracleDaily » Exporting DBFS via NFSOEL 6.x works for sure as I did the DBFS exports myself through both NFS as well as Samba 

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• How to intercept raw soap request/response (data) from WCF client

  - by JohnIdol

  This question seems to be pretty close to what I am looking for - I was able to setup tracing and I am looking at the log entries for my calls to the service. However I need to see the raw soap request with the data I am sending to the service and I see no way of doing that from the SvcTraceViewer (only log entries are shown but no data sent to the service) - am I just missing configuration? Here's what I got in my web.config: <system.diagnostics> <sources> <source name="System.ServiceModel" switchValue="Verbose" propagateActivity="true"> <listeners> <add name="sdt" type="System.Diagnostics.XmlWriterTraceListener" initializeData="App_Data/Logs/WCFTrace.svclog" /> </listeners> </source> </sources> </system.diagnostics> Any help appreciated! UPDATE: this is all I see in my trace: <E2ETraceEvent xmlns="http://schemas.microsoft.com/2004/06/E2ETraceEvent"> <System xmlns="http://schemas.microsoft.com/2004/06/windows/eventlog/system"> <EventID>262163</EventID> <Type>3</Type> <SubType Name="Information">0</SubType> <Level>8</Level> <TimeCreated SystemTime="2010-05-10T13:10:46.6713553Z" /> <Source Name="System.ServiceModel" /> <Correlation ActivityID="{00000000-0000-0000-1501-0080000000f6}" /> <Execution ProcessName="w3wp" ProcessID="3492" ThreadID="23" /> <Channel /> <Computer>MY_COMPUTER_NAME</Computer> </System> <ApplicationData> <TraceData> <DataItem> <TraceRecord xmlns="http://schemas.microsoft.com/2004/10/E2ETraceEvent/TraceRecord" Severity="Information"> <TraceIdentifier>http://msdn.microsoft.com/en-US/library/System.ServiceModel.Channels.MessageSent.aspx</TraceIdentifier> <Description>Sent a message over a channel.</Description> <AppDomain>MY_DOMAIN</AppDomain> <Source>System.ServiceModel.Channels.HttpOutput+WebRequestHttpOutput/50416815</Source> <ExtendedData xmlns="http://schemas.microsoft.com/2006/08/ServiceModel/MessageTraceRecord"> <MessageProperties> <Encoder>text/xml; charset=utf-8</Encoder> <AllowOutputBatching>False</AllowOutputBatching> <Via>http://xxx.xx.xxx.xxx:9080/MyWebService/myService</Via> </MessageProperties> <MessageHeaders></MessageHeaders> </ExtendedData> </TraceRecord> </DataItem> </TraceData> </ApplicationData>

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• SMO ConnectionContext.StatementTimeout setting is ignored

  - by Woody

  I am successfully using Powershell with SMO to backup most databases. However, I have several large databases in which I receive a "timeout" error "System.Data.SqlClient.SqlException: Timeout expired". The timout consistently occurs at 10 minutes. I have tried setting ConnectionContext.StatementTimeout to 0, 6000, and to [System.Int32]::MaxValue. The setting made no difference. I have found a number of Google references which indicate setting it to 0 makes it unlimited. No matter what I try, the timeouts consistently occur at 10 minutes. I even set Remote Query Timeout on the server to 0 (via Studio Manager) to no avail. Below is my SMO connection where I set the time out and the actual backup function. Further below is the output from my script. UPDATE Interestingly enough, I wrote the backup function in C# using VS 2008 and the timeout override does work within that environment. I am in the process of incorporating that C# process into my Powershell Script until I can find out why the timeout override does not work with just Powershell. This is extremely annoying! function New-SMOconnection { Param ($server, $ApplicationName= "PowerShell SMO", [int]$StatementTimeout = 0 ) # Write-Debug "Function: New-SMOconnection $server $connectionname $commandtimeout" if (test-path variable:\conn) { $conn.connectioncontext.disconnect() } else { $conn = New-Object('Microsoft.SqlServer.Management.Smo.Server') $server } $conn.connectioncontext.applicationName = $applicationName $conn.ConnectionContext.StatementTimeout = $StatementTimeout $conn.connectioncontext.Connect() $conn } $smo = New-SMOConnection -server $server if ($smo.connectioncontext.isopen -eq $false) { Throw "Could not connect to server $($server)." } Function Backup-Database { Param([string]$dbname) $db = $smo.Databases.get_Item($dbname) if (!$db) {"Database $dbname was not found"; Return} $sqldir = $smo.Settings.BackupDirectory + "\$($smo.name -replace ("\\", "$"))" $s = ($server.Split('\'))[0] $basedir = "\\$s\" + $($sqldir -replace (":", "$")) $dt = get-date -format yyyyMMdd-HHmmss $dbbk = new-object ('Microsoft.SqlServer.Management.Smo.Backup') $dbbk.Action = 'Database' $dbbk.BackupSetDescription = "Full backup of " + $dbname $dbbk.BackupSetName = $dbname + " Backup" $dbbk.Database = $dbname $dbbk.MediaDescription = "Disk" $target = "$basedir\$dbname\FULL" if (-not(Test-Path $target)) { New-Item $target -ItemType directory | Out-Null} $device = "$sqldir\$dbname\FULL\" + $($server -replace("\\", "$")) + "_" + $dbname + "_FULL_" + $dt + ".bak" $dbbk.Devices.AddDevice($device, 'File') $dbbk.Initialize = $True $dbbk.Incremental = $false $dbbk.LogTruncation = [Microsoft.SqlServer.Management.Smo.BackupTruncateLogType]::Truncate If (!$copyonly) { If ($kill) {$smo.KillAllProcesses($dbname)} $dbbk.SqlBackupAsync($server) } $dbbk } Started SQL backups for server LCFSQLxxx\SQLxxx at 05/06/2010 15:33:16 Statement TimeOut value set to 0. DatabaseName : OperationsManagerDW StartBackupTime : 5/6/2010 3:33:16 PM EndBackupTime : 5/6/2010 3:43:17 PM StartCopyTime : 1/1/0001 12:00:00 AM EndCopyTime : 1/1/0001 12:00:00 AM CopiedFiles : Status : Failed ErrorMessage : System.Data.SqlClient.SqlException: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. The backup or restore was aborted. 10 percent processed. 20 percent processed. 30 percent processed. 40 percent processed. 50 percent processed. 60 percent processed. 70 percent processed. at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async) at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteNonQuery(String sqlCommand, ExecutionTypes executionType) Ended backups at 05/06/2010 15:43:23

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• .NET Framework generates strange DCOM error

  - by Anders Oestergaard Jensen

  Hello, I am creating a simple application that enables merging of key-value pairs fields in a Word and/or Excel document. Until this day, the application has worked out just fine. I am using the latest version of .NET Framework 4.0 (since it provides a nice wrapper API for Interop). My sample merging method looks like this: public byte[] ProcessWordDocument(string path, List<KeyValuePair<string, string>> kvs) { logger.InfoFormat("ProcessWordDocument: path = {0}", path); var localWordapp = new Word.Application(); localWordapp.Visible = false; Word.Document doc = null; try { doc = localWordapp.Documents.Open(path, ReadOnly: false); logger.Debug("Executing Find->Replace..."); foreach (Word.Range r in doc.StoryRanges) { foreach (KeyValuePair<string, string> kv in kvs) { r.Find.Execute(Replace: Word.WdReplace.wdReplaceAll, FindText: kv.Key, ReplaceWith: kv.Value, Wrap: Word.WdFindWrap.wdFindContinue); } } logger.Debug("Done! Saving document and cleaning up"); doc.Save(); doc.Close(); System.Runtime.InteropServices.Marshal.ReleaseComObject(doc); localWordapp.Quit(); System.Runtime.InteropServices.Marshal.ReleaseComObject(localWordapp); logger.Debug("Done."); return System.IO.File.ReadAllBytes(path); } catch (Exception ex) { // Logging... // doc.Close(); if (doc != null) { doc.Close(); System.Runtime.InteropServices.Marshal.ReleaseComObject(doc); } localWordapp.Quit(); System.Runtime.InteropServices.Marshal.ReleaseComObject(localWordapp); throw; } } The above C# snippet has worked all fine (compiled and deployed unto a Windows Server 2008 x64) with latest updates installed. But now, suddenly, I get the following strange error: System.Runtime.InteropServices.COMException (0x80080005): Retrieving the COM class factory for component with CLSID {000209FF-0000-0000-C000-000000000046} failed due to the following error: 80080005 Server execution failed (Exception from HRESULT: 0x80080005 (CO_E_SERVER_EXEC_FAILURE)). at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck) at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache) at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache) at System.Activator.CreateInstance(Type type, Boolean nonPublic) at Meeho.Integration.OfficeHelper.ProcessWordDocument(String path, List`1 kvs) in C:\meeho\src\webservices\Meeho.Integration\OfficeHelper.cs:line 30 at Meeho.IntegrationService.ConvertDocument(Byte[] template, String ext, String[] fields, String[] values) in C:\meeho\src\webservices\MeehoService\IntegrationService.asmx.cs:line 49 -- I googled the COM error, but it returns nothing of particular value. I even gave the right permissions for the COM dll's using mmc -32, where I allocated the Word and Excel documents respectively and set the execution rights to the Administrator. I could not, however, locate the dll's by the exact COM CLSID given above. Very frustrating. Please, please, please help me as the application is currently pulled out of production. Anders EDIT: output from the Windows event log: Faulting application name: WINWORD.EXE, version: 12.0.6514.5000, time stamp: 0x4a89d533 Faulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000 Exception code: 0xc0000005 Fault offset: 0x00000000 Faulting process id: 0x720 Faulting application start time: 0x01cac571c4f82a7b Faulting application path: C:\Program Files (x86)\Microsoft Office\Office12\WINWORD.EXE Faulting module path: unknown Report Id: 041dd5f9-3165-11df-b96a-0025643cefe6 - 1000 2 100 0x80000000000000 2963 Application meeho3 - WINWORD.EXE 12.0.6514.5000 4a89d533 unknown 0.0.0.0 00000000 c0000005 00000000 720 01cac571c4f82a7b C:\Program Files (x86)\Microsoft Office\Office12\WINWORD.EXE unknown 041dd5f9-3165-11df-b96a-0025643cefe6

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• Creating a Reverse Proxy using Jpcap

  - by Ramon Marco Navarro

  I need to create a program that receives HTTP request and forwards those requests to the web servers. I have successfully made this using only Java Sockets but the client needed the program to be implemented in Jpcap. I'd like to know if this is possible and what literature I should be reading for this project. This is what I have now by stitching together pieces from the Jpcap tutorial: import java.net.InetAddress; import java.io.*; import jpcap.*; import jpcap.packet.*; public class Router { public static void main(String args[]) { //Obtain the list of network interfaces NetworkInterface[] devices = JpcapCaptor.getDeviceList(); //for each network interface for (int i = 0; i < devices.length; i++) { //print out its name and description System.out.println(i+": "+devices[i].name + "(" + devices[i].description+")"); //print out its datalink name and description System.out.println(" datalink: "+devices[i].datalink_name + "(" + devices[i].datalink_description+")"); //print out its MAC address System.out.print(" MAC address:"); for (byte b : devices[i].mac_address) System.out.print(Integer.toHexString(b&0xff) + ":"); System.out.println(); //print out its IP address, subnet mask and broadcast address for (NetworkInterfaceAddress a : devices[i].addresses) System.out.println(" address:"+a.address + " " + a.subnet + " "+ a.broadcast); } int index = 1; // set index of the interface that you want to open. //Open an interface with openDevice(NetworkInterface intrface, int snaplen, boolean promics, int to_ms) JpcapCaptor captor = null; try { captor = JpcapCaptor.openDevice(devices[index], 65535, false, 20); captor.setFilter("port 80 and host 192.168.56.1", true); } catch(java.io.IOException e) { System.err.println(e); } //call processPacket() to let Jpcap call PacketPrinter.receivePacket() for every packet capture. captor.loopPacket(-1,new PacketPrinter()); captor.close(); } } class PacketPrinter implements PacketReceiver { //this method is called every time Jpcap captures a packet public void receivePacket(Packet p) { JpcapSender sender = null; try { NetworkInterface[] devices = JpcapCaptor.getDeviceList(); sender = JpcapSender.openDevice(devices[1]); } catch(IOException e) { System.err.println(e); } IPPacket packet = (IPPacket)p; try { // IP Address of machine sending HTTP requests (the client) // It's still on the same LAN as the servers for testing purposes. packet.dst_ip = InetAddress.getByName("192.168.56.2"); } catch(java.net.UnknownHostException e) { System.err.println(e); } //create an Ethernet packet (frame) EthernetPacket ether=new EthernetPacket(); //set frame type as IP ether.frametype=EthernetPacket.ETHERTYPE_IP; //set source and destination MAC addresses // MAC Address of machine running reverse proxy server ether.src_mac = new MacAddress("08:00:27:00:9C:80").getAddress(); // MAC Address of machine running web server ether.dst_mac = new MacAddress("08:00:27:C7:D2:4C").getAddress(); //set the datalink frame of the packet as ether packet.datalink=ether; //send the packet sender.sendPacket(packet); sender.close(); //just print out a captured packet System.out.println(packet); } } Any help would be greatly appreciated. Thank you.

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• ASP.net FFMPEG video conversion receiving error: "Error number -2 occurred"

  - by Pete

  Hello, I am attempting to integrate FFMPEG into my asp.net website. The process I am trying to complete is to upload a video, check if it is .avi, .mov, or .wmv and then convert this video into an mp4 using x264 so my flash player can play it. I am using an http handler (ashx) file to handle my upload. This is where I am also putting my conversion code. I am not sure if this is the best place to put it, but I wanted to see if i could at least get it working. Additionally, I was able to complete the conversion manually through cmd line. The error -2 comes up when i output the standard error from the process I executed. This is the error i receive: FFmpeg version SVN-r23001, Copyright (c) 2000-2010 the FFmpeg developers built on May 1 2010 06:06:15 with gcc 4.4.2 configuration: --enable-memalign-hack --cross-prefix=i686-mingw32- --cc=ccache-i686-mingw32-gcc --arch=i686 --target-os=mingw32 --enable-runtime-cpudetect --enable-avisynth --enable-gpl --enable-version3 --enable-bzlib --enable-libgsm --enable-libfaad --enable-pthreads --enable-libvorbis --enable-libtheora --enable-libspeex --enable-libmp3lame --enable-libopenjpeg --enable-libxvid --enable-libschroedinger --enable-libx264 --enable-libopencore_amrwb --enable-libopencore_amrnb libavutil 50.15. 0 / 50.15. 0 libavcodec 52.66. 0 / 52.66. 0 libavformat 52.61. 0 / 52.61. 0 libavdevice 52. 2. 0 / 52. 2. 0 libswscale 0.10. 0 / 0.10. 0 532010_Robotica_720.wmv: Error number -2 occurred here is the code below: <%@ WebHandler Language="VB" Class="upload" %> Imports System Imports System.Web Imports System.IO Imports System.Diagnostics Imports System.Threading Public Class upload : Implements IHttpHandler Public currentTime As System.DateTime Public Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest currentTime = System.DateTime.Now If (Not context.Request.Files("Filedata") Is Nothing) Then Dim file As HttpPostedFile : file = context.Request.Files("Filedata") Dim targetDirectory As String : targetDirectory = HttpContext.Current.Server.MapPath(context.Request("folder")) Dim targetFilePath As String : targetFilePath = Path.Combine(targetDirectory, currentTime.Month & currentTime.Day & currentTime.Year & "_" & file.FileName) Dim fileNameArray As String() fileNameArray = Split(file.FileName, ".") If (System.IO.File.Exists(targetFilePath)) Then System.IO.File.Delete(targetFilePath) End If file.SaveAs(targetFilePath) Select Case fileNameArray(UBound(fileNameArray)) Case "avi", "mov", "wmv" Dim fileargs As String = fileargs = "-y -i " & currentTime.Month & currentTime.Day & currentTime.Year & "_" & file.FileName & " -ab 96k -vcodec libx264 -vpre normal -level 41 " fileargs += "-crf 25 -bufsize 20000k -maxrate 25000k -g 250 -r 20 -s 900x506 -coder 1 -flags +loop " fileargs += "-cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 -subq 7 -me_range 16 -keyint_min 25 " fileargs += "-sc_threshold 40 -i_qfactor 0.71 -rc_eq 'blurCplx^(1-qComp)' -bf 16 -b_strategy 1 -bidir_refine 1 " fileargs += "-refs 6 -deblockalpha 0 -deblockbeta 0 -f mp4 " & currentTime.Month & currentTime.Day & currentTime.Year & "_" & file.FileName & ".mp4" Dim proc As New Diagnostics.Process() proc.StartInfo.FileName "ffmpeg.exe" proc.StartInfo.Arguments = fileargs proc.StartInfo.UseShellExecute = False proc.StartInfo.CreateNoWindow = True proc.StartInfo.RedirectStandardOutput = True proc.StartInfo.RedirectStandardError = True AddHandler proc.OutputDataReceived, AddressOf SaveTextToFile proc.Start() SaveTextToFile2(proc.StandardError.ReadToEnd()) proc.WaitForExit() proc.Close() End Select Catch ex As System.IO.IOException Thread.Sleep(2000) GoTo Conversion Finally context.Response.Write("1") End Try End If End Sub Public ReadOnly Property IsReusable() As Boolean Implements IHttpHandler.IsReusable Get Return False End Get End Property Private Shared Sub SaveTextToFile(ByVal sendingProcess As Object, ByVal strData As DataReceivedEventArgs) Dim FullPath As String = "text.txt" Dim Contents As String = "" Dim objReader As StreamWriter objReader = New StreamWriter(FullPath) If Not String.IsNullOrEmpty(strData.Data) Then objReader.Write(Environment.NewLine + strData.Data) End If objReader.Close() End Sub Private Sub SaveTextToFile2(ByVal strData As String) Dim FullPath As String = "texterror.txt" Dim Contents As String = "" Dim objReader As StreamWriter objReader = New StreamWriter(FullPath) objReader.Write(Environment.NewLine + strData) objReader.Close() End Sub End Class

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• Get Asynchronous HttpResponse through Silverlight (F#)

  - by jack2010

  I am a newbie with F# and SL and playing with getting asynchronous HttpResponse through Silverlight. The following is the F# code pieces, which is tested on VS2010 and Window7 and works well, but the improvement is necessary. Any advices and discussion, especially the callback part, are welcome and great thanks. module JSONExample open System open System.IO open System.Net open System.Text open System.Web open System.Security.Authentication open System.Runtime.Serialization [<DataContract>] type Result<'TResult> = { [<field: DataMember(Name="code") >] Code:string [<field: DataMember(Name="result") >] Result:'TResult array [<field: DataMember(Name="message") >] Message:string } // The elements in the list [<DataContract>] type ChemicalElement = { [<field: DataMember(Name="name") >] Name:string [<field: DataMember(Name="boiling_point") >] BoilingPoint:string [<field: DataMember(Name="atomic_mass") >] AtomicMass:string } //http://blogs.msdn.com/b/dsyme/archive/2007/10/11/introducing-f-asynchronous-workflows.aspx //http://lorgonblog.spaces.live.com/blog/cns!701679AD17B6D310!194.entry type System.Net.HttpWebRequest with member x.GetResponseAsync() = Async.FromBeginEnd(x.BeginGetResponse, x.EndGetResponse) type RequestState () = let mutable request : WebRequest = null let mutable response : WebResponse = null let mutable responseStream : Stream = null member this.Request with get() = request and set v = request <- v member this.Response with get() = response and set v = response <- v member this.ResponseStream with get() = responseStream and set v = responseStream <- v let allDone = new System.Threading.ManualResetEvent(false) let getHttpWebRequest (query:string) = let query = query.Replace("'","\"") let queryUrl = sprintf "http://api.freebase.com/api/service/mqlread?query=%s" "{\"query\":"+query+"}" let request : HttpWebRequest = downcast WebRequest.Create(queryUrl) request.Method <- "GET" request.ContentType <- "application/x-www-form-urlencoded" request let GetAsynResp (request : HttpWebRequest) (callback: AsyncCallback) = let myRequestState = new RequestState() myRequestState.Request <- request let asyncResult = request.BeginGetResponse(callback, myRequestState) () // easy way to get it to run syncrnously w/ the asynch methods let GetSynResp (request : HttpWebRequest) : HttpWebResponse = let response = request.GetResponseAsync() |> Async.RunSynchronously downcast response let RespCallback (finish: Stream -> _) (asynchronousResult : IAsyncResult) = try let myRequestState : RequestState = downcast asynchronousResult.AsyncState let myWebRequest1 : WebRequest = myRequestState.Request myRequestState.Response <- myWebRequest1.EndGetResponse(asynchronousResult) let responseStream = myRequestState.Response.GetResponseStream() myRequestState.ResponseStream <- responseStream finish responseStream myRequestState.Response.Close() () with | :? WebException as e -> printfn "WebException raised!" printfn "\n%s" e.Message printfn "\n%s" (e.Status.ToString()) () | _ as e -> printfn "Exception raised!" printfn "Source : %s" e.Source printfn "Message : %s" e.Message () let printResults (stream: Stream)= let result = try use reader = new StreamReader(stream) reader.ReadToEnd(); finally () let data = Encoding.Unicode.GetBytes(result); let stream = new MemoryStream() stream.Write(data, 0, data.Length); stream.Position <- 0L let JsonSerializer = Json.DataContractJsonSerializer(typeof<Result<ChemicalElement>>) let result = JsonSerializer.ReadObject(stream) :?> Result<ChemicalElement> if result.Code<>"/api/status/ok" then raise (InvalidOperationException(result.Message)) else result.Result |> Array.iter(fun element->printfn "%A" element) let test = // Call Query (w/ generics telling it you wand an array of ChemicalElement back, the query string is wackyJSON too –I didn’t build it don’t ask me! let request = getHttpWebRequest "[{'type':'/chemistry/chemical_element','name':null,'boiling_point':null,'atomic_mass':null}]" //let response = GetSynResp request let response = GetAsynResp request (AsyncCallback (RespCallback printResults)) () ignore(test) System.Console.ReadLine() |> ignore

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• Enteprise Library Exception Handling for WCF Fault Contracts - CLIENT SIDE

  - by Huw

  I have a Windows Service which communicates with WCF services. The WCF services are all fault shielded and generate custom UserFaultContracts and ServiceFaultContracts. No problems there. In the Windows Service I am using EntLib for exception handling and logging. I do not want to try catch for faults try { } catch (FaultException<UserFaultContract>) { } I want to use EntLib try { } catch (Exception ex) { var rethrow = ExceptionPolicy.HandleException(ex, "Transaction Policy"); if (rethrow) throw; } This also works, however, in my Tranasaction Policy I want to Log the details of the UserFaultContract. This is where I am unglued. And I hate becoming unglued. The fault is captured and logged...but I can't get the details of the fault. My exception policy is <add name="Transaction Policy"> <exceptionTypes> <add type="System.Exception, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" postHandlingAction="None" name="Exception"> <exceptionHandlers> <add logCategory="General" eventId="200" severity="Error" title="Transaction Error" formatterType="Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.TextExceptionFormatter, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" priority="2" useDefaultLogger="true" type="Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Logging.LoggingExceptionHandler, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Logging, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" name="Logging Handler" /> </exceptionHandlers> </add> <add type="System.ServiceModel.FaultException, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" postHandlingAction="None" name="FaultException"> <exceptionHandlers> <add logCategory="General" eventId="200" severity="Error" title="Service Fault" formatterType="Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.TextExceptionFormatter, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" priority="2" useDefaultLogger="true" type="Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Logging.LoggingExceptionHandler, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Logging, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" name="Logging Handler" /> </exceptionHandlers> </add> </exceptionTypes> </add> The exception logged is: Timestamp: 5/13/2010 14:53:40 Message: HandlingInstanceID: e9038634-e16e-4d87-ab1e-92379431838b An exception of type 'System.ServiceModel.FaultException`1[[LCI.DispatchMaster.FaultContracts.ServiceFaultContract, LCI.DispatchMaster.FaultContracts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]]' occurred and was caught. 05/13/2010 10:53:40 Type : System.ServiceModel.FaultException`1[[LCI.DispatchMaster.FaultContracts.ServiceFaultContract, LCI.DispatchMaster.FaultContracts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 Message : There was an internal fault at the DispatchMaster service. Source : mscorlib Help link : Detail : LCI.DispatchMaster.FaultContracts.ServiceFaultContract Action : http://LCI.DispatchMaster.LogicalChoices.com/ITruckMasterService/MergeScenarioServiceFaultContractFault Code : System.ServiceModel.FaultCode Reason : There was an internal fault at the DispatchMaster service. Data : System.Collections.ListDictionaryInternal TargetSite : Void HandleReturnMessage(System.Runtime.Remoting.Messaging.IMessage, System.Runtime.Remoting.Messaging.IMessage) Stack Trace : In the fault contact there is an ID and a Message. I would, as you can see, like the ID and Message to be logged by EntLib. I am assuming that I'm going to have to write a custom handler to exctract the fault details - but thought I'd ask if I'm missing something in EntLib which might help me avoid that task. Thanks to anyone who is willing to help.

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• "The Controls collection cannot be modified because the control contains code blocks"

  - by Daniel P

  I am trying to create a simple user control that is a slider. When I add a AjaxToolkit SliderExtender to the user control I get this (*&$#()@# error: Server Error in '/' Application. The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %). Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Web.HttpException: The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %). Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [HttpException (0x80004005): The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %).] System.Web.UI.ControlCollection.Add(Control child) +8677431 AjaxControlToolkit.ScriptObjectBuilder.RegisterCssReferences(Control control) in d:\E\AjaxTk-AjaxControlToolkit\Release\AjaxControlToolkit\ExtenderBase\ScriptObjectBuilder.cs:293 AjaxControlToolkit.ExtenderControlBase.OnLoad(EventArgs e) in d:\E\AjaxTk-AjaxControlToolkit\Release\AjaxControlToolkit\ExtenderBase\ExtenderControlBase.cs:306 System.Web.UI.Control.LoadRecursive() +50 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627 Version Information: Microsoft .NET Framework Version:2.0.50727.3074; ASP.NET Version:2.0.50727.3074 I have tried putting a placeholder in the user control and adding the textbox and slider extender to the placeholder programmatically and I still get the error. Here is the simple code: <table cellpadding="0" cellspacing="0" style="width:100%"> <tbody> <tr> <td></td> <td> <asp:Label ID="lblMaxValue" runat="server" Text="Maximum" CssClass="float_right" /> <asp:Label ID="lblMinValue" runat="server" Text="Minimum" /> </td> </tr> <tr> <td style="width:60%;"> <asp:CheckBox ID="chkOn" runat="server" /><asp:Label ID="lblPrefix" runat="server" />:&nbsp;<asp:Label ID="lblSliderValue" runat="server" />&nbsp;<asp:Label ID="lblSuffix" runat="server" /> </td> <td style="text-align:right;width:40%;"> <asp:TextBox ID="txtSlider" runat="server" Text="50" style="display:none;" /> <ajaxToolkit:SliderExtender ID="seSlider" runat="server" BehaviorID="seSlider" TargetControlID="txtSlider" BoundControlID="lblSliderValue" Orientation="Horizontal" EnableHandleAnimation="true" Length="200" Minimum="0" Maximum="100" Steps="1" /> </td> </tr> </tbody> What is the problem? Thanks in advance. Dan

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• WCF endpoint exception

  - by Lijo

  Hi Team, I am just trying with various WCF(in .Net 3.0) scenarios. I am using self hosting. I am getting an exception as "Service 'MyServiceLibrary.NameDecorator' has zero application (non-infrastructure) endpoints. This might be because no configuration file was found for your application, or because no service element matching the service name could be found in the configuration file, or because no endpoints were defined in the service element." I have a config file as follows (which has an endpoint) <?xml version="1.0" encoding="utf-8" ?> <configuration> <system.serviceModel> <services> <service name="Lijo.Samples.NameDecorator" behaviorConfiguration="WeatherServiceBehavior"> <host> <baseAddresses> <add baseAddress="http://localhost:8010/ServiceModelSamples/FreeServiceWorld"/> </baseAddresses> </host> <endpoint address="" binding="wsHttpBinding" contract="Lijo.Samples.IElementaryService" /> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" /> </service> </services> <behaviors> <serviceBehaviors> <behavior name="WeatherServiceBehavior"> <serviceMetadata httpGetEnabled="true"/> <serviceDebug includeExceptionDetailInFaults="False"/> </behavior> </serviceBehaviors> </behaviors> </system.serviceModel> </configuration> And a Host as using System.ServiceModel; using System.ServiceModel.Dispatcher; using System.ServiceModel.Channels; using System.ServiceModel.Description; using System.Runtime.Serialization; namespace MySelfHostConsoleApp { class Program { static void Main(string[] args) { System.ServiceModel.ServiceHost myHost = new ServiceHost(typeof(MyServiceLibrary.NameDecorator)); myHost.Open(); Console.ReadLine(); } } } My Service is as follows using System.ServiceModel; using System.Runtime.Serialization; namespace MyServiceLibrary { [ServiceContract(Namespace = "http://Lijo.Samples")] public interface IElementaryService { [OperationContract] CompanyLogo GetLogo(); } public class NameDecorator : IElementaryService { public CompanyLogo GetLogo() { CircleType cirlce = new CircleType(); CompanyLogo logo = new CompanyLogo(cirlce); return logo; } } [DataContract] public abstract class IShape { public abstract string SelfExplain(); } [DataContract(Name = "Circle")] public class CircleType : IShape { public override string SelfExplain() { return "I am a Circle"; } } [DataContract(Name = "Triangle")] public class TriangleType : IShape { public override string SelfExplain() { return "I am a Triangle"; } } [DataContract] [KnownType(typeof(CircleType))] [KnownType(typeof(TriangleType))] public class CompanyLogo { private IShape m_shapeOfLogo; [DataMember] public IShape ShapeOfLogo { get { return m_shapeOfLogo; } set { m_shapeOfLogo = value; } } public CompanyLogo(IShape shape) { m_shapeOfLogo = shape; } } } Could you please help me to understand what I am missing here? Thanks Lijo

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• DexFile.class error in eclipse

  - by ninjasense

  I get this weird error everytime I debug in eclipse. It just seemed to appear one day and I was wondering if anyone else was running int the same problem. It does not affect my app in anyway visibly and does not cause a crash but it is an annoyance while debugging. Here is the full error: // Compiled from DexFile.java (version 1.5 : 49.0, super bit) public final class dalvik.system.DexFile { // Method descriptor #8 (Ljava/io/File;)V // Stack: 3, Locals: 2 public DexFile(java.io.File file) throws java.io.IOException; 0 aload_0 [this] 1 invokespecial java.lang.Object() [1] 4 new java.lang.RuntimeException [2] 7 dup 8 ldc <String "Stub!"> [3] 10 invokespecial java.lang.RuntimeException(java.lang.String) [4] 13 athrow Line numbers: [pc: 0, line: 4] Local variable table: [pc: 0, pc: 14] local: this index: 0 type: dalvik.system.DexFile [pc: 0, pc: 14] local: file index: 1 type: java.io.File // Method descriptor #18 (Ljava/lang/String;)V // Stack: 3, Locals: 2 public DexFile(java.lang.String fileName) throws java.io.IOException; 0 aload_0 [this] 1 invokespecial java.lang.Object() [1] 4 new java.lang.RuntimeException [2] 7 dup 8 ldc <String "Stub!"> [3] 10 invokespecial java.lang.RuntimeException(java.lang.String) [4] 13 athrow Line numbers: [pc: 0, line: 5] Local variable table: [pc: 0, pc: 14] local: this index: 0 type: dalvik.system.DexFile [pc: 0, pc: 14] local: fileName index: 1 type: java.lang.String // Method descriptor #22 (Ljava/lang/String;Ljava/lang/String;I)Ldalvik/system/DexFile; // Stack: 3, Locals: 3 public static dalvik.system.DexFile loadDex(java.lang.String sourcePathName, java.lang.String outputPathName, int flags) throws java.io.IOException; 0 new java.lang.RuntimeException [2] 3 dup 4 ldc <String "Stub!"> [3] 6 invokespecial java.lang.RuntimeException(java.lang.String) [4] 9 athrow Line numbers: [pc: 0, line: 6] Local variable table: [pc: 0, pc: 10] local: sourcePathName index: 0 type: java.lang.String [pc: 0, pc: 10] local: outputPathName index: 1 type: java.lang.String [pc: 0, pc: 10] local: flags index: 2 type: int // Method descriptor #28 ()Ljava/lang/String; // Stack: 3, Locals: 1 public java.lang.String getName(); 0 new java.lang.RuntimeException [2] 3 dup 4 ldc <String "Stub!"> [3] 6 invokespecial java.lang.RuntimeException(java.lang.String) [4] 9 athrow Line numbers: [pc: 0, line: 7] Local variable table: [pc: 0, pc: 10] local: this index: 0 type: dalvik.system.DexFile // Method descriptor #30 ()V // Stack: 3, Locals: 1 public void close() throws java.io.IOException; 0 new java.lang.RuntimeException [2] 3 dup 4 ldc <String "Stub!"> [3] 6 invokespecial java.lang.RuntimeException(java.lang.String) [4] 9 athrow Line numbers: [pc: 0, line: 8] Local variable table: [pc: 0, pc: 10] local: this index: 0 type: dalvik.system.DexFile // Method descriptor #32 (Ljava/lang/String;Ljava/lang/ClassLoader;)Ljava/lang/Class; // Stack: 3, Locals: 3 public java.lang.Class loadClass(java.lang.String name, java.lang.ClassLoader loader); 0 new java.lang.RuntimeException [2] 3 dup 4 ldc <String "Stub!"> [3] 6 invokespecial java.lang.RuntimeException(java.lang.String) [4] 9 athrow Line numbers: [pc: 0, line: 9] Local variable table: [pc: 0, pc: 10] local: this index: 0 type: dalvik.system.DexFile [pc: 0, pc: 10] local: name index: 1 type: java.lang.String [pc: 0, pc: 10] local: loader index: 2 type: java.lang.ClassLoader // Method descriptor #37 ()Ljava/util/Enumeration; // Signature: ()Ljava/util/Enumeration<Ljava/lang/String;>; // Stack: 3, Locals: 1 public java.util.Enumeration entries(); 0 new java.lang.RuntimeException [2] 3 dup 4 ldc <String "Stub!"> [3] 6 invokespecial java.lang.RuntimeException(java.lang.String) [4] 9 athrow Line numbers: [pc: 0, line: 10] Local variable table: [pc: 0, pc: 10] local: this index: 0 type: dalvik.system.DexFile // Method descriptor #30 ()V // Stack: 3, Locals: 1 protected void finalize() throws java.io.IOException; 0 new java.lang.RuntimeException [2] 3 dup 4 ldc <String "Stub!"> [3] 6 invokespecial java.lang.RuntimeException(java.lang.String) [4] 9 athrow Line numbers: [pc: 0, line: 11] Local variable table: [pc: 0, pc: 10] local: this index: 0 type: dalvik.system.DexFile // Method descriptor #42 (Ljava/lang/String;)Z public static native boolean isDexOptNeeded(java.lang.String arg0) throws java.io.FileNotFoundException, java.io.IOException; } Thanks

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• Correct XML serialization and deserialization of "mixed" types in .NET

  - by Stefan

  My current task involves writing a class library for processing HL7 CDA files. These HL7 CDA files are XML files with a defined XML schema, so I used xsd.exe to generate .NET classes for XML serialization and deserialization. The XML Schema contains various types which contain the mixed="true" attribute, specifying that an XML node of this type may contain normal text mixed with other XML nodes. The relevant part of the XML schema for one of these types looks like this: <xs:complexType name="StrucDoc.Paragraph" mixed="true"> <xs:sequence> <xs:element name="caption" type="StrucDoc.Caption" minOccurs="0"/> <xs:choice minOccurs="0" maxOccurs="unbounded"> <xs:element name="br" type="StrucDoc.Br"/> <xs:element name="sub" type="StrucDoc.Sub"/> <xs:element name="sup" type="StrucDoc.Sup"/> <!-- ...other possible nodes... --> </xs:choice> </xs:sequence> <xs:attribute name="ID" type="xs:ID"/> <!-- ...other attributes... --> </xs:complexType> The generated code for this type looks like this: /// <remarks/> [System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.3038")] [System.SerializableAttribute()] [System.Diagnostics.DebuggerStepThroughAttribute()] [System.ComponentModel.DesignerCategoryAttribute("code")] [System.Xml.Serialization.XmlTypeAttribute(TypeName="StrucDoc.Paragraph", Namespace="urn:hl7-org:v3")] public partial class StrucDocParagraph { private StrucDocCaption captionField; private object[] itemsField; private string[] textField; private string idField; // ...fields for other attributes... /// <remarks/> public StrucDocCaption caption { get { return this.captionField; } set { this.captionField = value; } } /// <remarks/> [System.Xml.Serialization.XmlElementAttribute("br", typeof(StrucDocBr))] [System.Xml.Serialization.XmlElementAttribute("sub", typeof(StrucDocSub))] [System.Xml.Serialization.XmlElementAttribute("sup", typeof(StrucDocSup))] // ...other possible nodes... public object[] Items { get { return this.itemsField; } set { this.itemsField = value; } } /// <remarks/> [System.Xml.Serialization.XmlTextAttribute()] public string[] Text { get { return this.textField; } set { this.textField = value; } } /// <remarks/> [System.Xml.Serialization.XmlAttributeAttribute(DataType="ID")] public string ID { get { return this.idField; } set { this.idField = value; } } // ...properties for other attributes... } If I deserialize an XML element where the paragraph node looks like this: <paragraph>first line<br /><br />third line</paragraph> The result is that the item and text arrays are read like this: itemsField = new object[] { new StrucDocBr(), new StrucDocBr(), }; textField = new string[] { "first line", "third line", }; From this there is no possible way to determine the exact order of the text and the other nodes. If I serialize this again, the result looks exactly like this: <paragraph> <br /> <br />first linethird line </paragraph> The default serializer just serializes the items first and then the text. I tried implementing IXmlSerializable on the StrucDocParagraph class so that I could control the deserialization and serialization of the content, but it's rather complex since there are so many classes involved and I didn't come to a solution yet because I don't know if the effort pays off. Is there some kind of easy workaround to this problem, or is it even possible by doing custom serialization via IXmlSerializable? Or should I just use XmlDocument or XmlReader/XmlWriter to process these documents?

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• I can't get SetSystemTime to work in Windows Vista using C# with Interop (P/Invoke).

  - by Andrew

  Hi, I'm having a hard time getting SetSystemTime working in my C# code. SetSystemtime is a kernel32.dll function. I'm using P/invoke (interop) to call it. SetSystemtime returns false and the error is "Invalid Parameter". I've posted the code below. I stress that GetSystemTime works just fine. I've tested this on Vista and Windows 7. Based on some newsgroup postings I've seen I have turned off UAC. No difference. I have done some searching for this problem. I found this link: http://groups.google.com.tw/group/microsoft.public.dotnet.framework.interop/browse_thread/thread/805fa8603b00c267 where the problem is reported but no resolution seems to be found. Notice that UAC is also mentioned but I'm not sure this is the problem. Also notice that this gentleman gets no actual Win32Error. Can someone try my code on XP? Can someone tell me what I'm doing wrong and how to fix it. If the answer is to somehow change permission settings programatically, I'd need an example. I would have thought turning off UAC should cover that though. I'm not required to use this particular way (SetSystemTime). I'm just trying to introduce some "clock drift" to stress test something. If there's another way to do it, please tell me. Frankly, I'm surprised I need to use Interop to change the system time. I would have thought there is a .NET method. Thank you very much for any help or ideas. Andrew Code: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Runtime.InteropServices; namespace SystemTimeInteropTest { class Program { #region ClockDriftSetup [StructLayout(LayoutKind.Sequential)] public struct SystemTime { [MarshalAs(UnmanagedType.U2)] public short Year; [MarshalAs(UnmanagedType.U2)] public short Month; [MarshalAs(UnmanagedType.U2)] public short DayOfWeek; [MarshalAs(UnmanagedType.U2)] public short Day; [MarshalAs(UnmanagedType.U2)] public short Hour; [MarshalAs(UnmanagedType.U2)] public short Minute; [MarshalAs(UnmanagedType.U2)] public short Second; [MarshalAs(UnmanagedType.U2)] public short Milliseconds; } [DllImport("kernel32.dll")] public static extern void GetLocalTime( out SystemTime systemTime); [DllImport("kernel32.dll")] public static extern void GetSystemTime( out SystemTime systemTime); [DllImport("kernel32.dll", SetLastError = true)] public static extern bool SetSystemTime( ref SystemTime systemTime); //[DllImport("kernel32.dll", SetLastError = true)] //public static extern bool SetLocalTime( //ref SystemTime systemTime); [System.Runtime.InteropServices.DllImportAttribute("kernel32.dll", EntryPoint = "SetLocalTime")] [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)] public static extern bool SetLocalTime([InAttribute()] ref SystemTime lpSystemTime); #endregion ClockDriftSetup static void Main(string[] args) { try { SystemTime sysTime; GetSystemTime(out sysTime); sysTime.Milliseconds += (short)80; sysTime.Second += (short)3000; bool bResult = SetSystemTime(ref sysTime); if (bResult == false) throw new System.ComponentModel.Win32Exception(); } catch (Exception ex) { Console.WriteLine("Drift Error: " + ex.Message); } } } }

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