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  • Sharepoint: Convert a SPFieldMultilineText to SPFieldText

    - by driAn
    Hi Is it possible to programmatically change a "multi-line text field" to "single-line text field" ? SPFieldMultiLineText field = list.Fields["sample"] as SPFieldMultiLineText; // how to change the type to 'single line' now ? Or do I need to create an additional field (with a similiar name) and migrate the content? Thanks for any help.

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  • Entity Framework SaveChanges error details

    - by Marek Karbarz
    When saving changes with SaveChanges on a data context is there a way to determine which Entity causes an error? For example, sometimes I'll forget to assign a date to a non-nullable date field and get "Invalid Date Range" error, but I get no information about which entity or which field it's caused by (I can usually track it down by painstakingly going through all my objects, but it's very time consuming). Stack trace is pretty useless as it only shows me an error at the SaveChanges call without any additional information as to where exactly it happened. Note that I'm not looking to solve any particular problem I have now, I would just like to know in general if there's a way to tell which entity/field is causing a problem. Quick sample of a stack trace as an example - in this case an error happened because CreatedOn date was not set on IAComment entity, however it's impossible to tell from this error/stack trace [SqlTypeException: SqlDateTime overflow. Must be between 1/1/1753 12:00:00 AM and 12/31/9999 11:59:59 PM.] System.Data.SqlTypes.SqlDateTime.FromTimeSpan(TimeSpan value) +2127345 System.Data.SqlTypes.SqlDateTime.FromDateTime(DateTime value) +232 System.Data.SqlClient.MetaType.FromDateTime(DateTime dateTime, Byte cb) +46 System.Data.SqlClient.TdsParser.WriteValue(Object value, MetaType type, Byte scale, Int32 actualLength, Int32 encodingByteSize, Int32 offset, TdsParserStateObject stateObj) +4997789 System.Data.SqlClient.TdsParser.TdsExecuteRPC(_SqlRPC[] rpcArray, Int32 timeout, Boolean inSchema, SqlNotificationRequest notificationRequest, TdsParserStateObject stateObj, Boolean isCommandProc) +6248 System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) +987 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) +162 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +32 System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) +141 System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) +12 System.Data.Common.DbCommand.ExecuteReader(CommandBehavior behavior) +10 System.Data.Mapping.Update.Internal.DynamicUpdateCommand.Execute(UpdateTranslator translator, EntityConnection connection, Dictionary`2 identifierValues, List`1 generatedValues) +8084396 System.Data.Mapping.Update.Internal.UpdateTranslator.Update(IEntityStateManager stateManager, IEntityAdapter adapter) +267 [UpdateException: An error occurred while updating the entries. See the inner exception for details.] System.Data.Mapping.Update.Internal.UpdateTranslator.Update(IEntityStateManager stateManager, IEntityAdapter adapter) +389 System.Data.EntityClient.EntityAdapter.Update(IEntityStateManager entityCache) +163 System.Data.Objects.ObjectContext.SaveChanges(SaveOptions options) +609 IADAL.IAController.Save(IAHeader head) in C:\Projects\IA\IADAL\IAController.cs:61 IA.IAForm.saveForm(Boolean validate) in C:\Projects\IA\IA\IAForm.aspx.cs:198 IA.IAForm.advance_Click(Object sender, EventArgs e) in C:\Projects\IA\IA\IAForm.aspx.cs:287 System.Web.UI.WebControls.Button.OnClick(EventArgs e) +118 System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +112 System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5019

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  • Facebook connect displaying invite friends dialog and closing on completion

    - by Dougnukem
    I'm trying to create a Facebook Connect application that displays a friend invite dialog within the page using Facebook's Javascript API (through a FBMLPopupDialog). The trouble is to display a friend invite dialog you use a multi-friend form which requires an action="url" attribute that represents the URL to redirect your page to when the user completes or skips the form. The problem is that I want to just close the FBMLPopupDialog (the same behavior as if the user just hit the 'X' button on the popup dialog). The best I can do is redirect the user back to the page they were on basically a reload but they lose all AJAX/Flash application state. I'm wondering if any Facebook Connect developers have run into this issue and have a good way to simply display a friend invite "lightbox" dialog within their website where they don't want to "refresh" or "redirect" when the user finishes. The facebook connect JS API provides a FB.Connect.inviteConnectUsers, which provides a nice dialog but only connects existing users of your application who also have a Facebook account and haven't connected. http://bugs.developers.facebook.com/show%5Fbug.cgi?id=4916 function fb_inviteFriends() { //Invite users log("Inviting users..."); FB.Connect.requireSession( function() { //Connect succes var uid = FB.Facebook.apiClient.get_session().uid; log('FB CONNECT SUCCESS: ' + uid); //Invite users log("Inviting users..."); //Update server with connected account updateAccountFacebookUID(); var fbml = fb_getInviteFBML() ; var dialog = new FB.UI. FBMLPopupDialog("Weblings Invite", fbml) ; //dialog.setFBMLContent(fbml); dialog.setContentWidth(650); dialog.setContentHeight(450); dialog.show(); }, //Connect cancelled function() { //User cancelled the connect log("FB Connect cancelled:"); } ); } function fb_getInviteFBML() { var uid = FB.Facebook.apiClient.get_session().uid; var fbml = ""; fbml = '<fb:fbml>\n' + '<fb:request-form\n'+ //Redirect back to this page ' action="'+ document.location +'"\n'+ ' method="POST"\n'+ ' invite="true"\n'+ ' type="Weblings Invite"\n' + ' content="I need your help to discover all the Weblings and save the Internet! WebWars: Weblings is a cool new game where we can collect fantastic creatures while surfing our favorite websites. Come find the missing Weblings with me!'+ //Callback the server with the appropriate Webwars Account URL ' <fb:req-choice url=\''+ WebwarsFB.WebwarsAccountServer +'/SplashPage.aspx?action=ref&reftype=Facebook' label=\'Check out WebWars: Weblings\' />"\n'+ '>\n'+ ' <fb:multi-friend-selector\n'+ ' rows="2"\n'+ ' cols="4"\n'+ ' bypass="Cancel"\n'+ ' showborder="false"\n'+ ' actiontext="Use this form to invite your friends to connect with WebWars: Weblings."/>\n'+ ' </fb:request-form>'+ ' </fb:fbml>'; return fbml; }

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  • iPhone 3DES encryption key length issue

    - by Russell Hill
    Hi, I have been banging my head on a wall with this one. I need to code my iPhone application to encrypt a 4 digit "pin" using 3DES in ECB mode for transmission to a webservice which I believe is written in .NET. + (NSData *)TripleDESEncryptWithKey:(NSString *)key dataToEncrypt:(NSData*)encryptData { NSLog(@"kCCKeySize3DES=%d", kCCKeySize3DES); char keyBuffer[kCCKeySize3DES+1]; // room for terminator (unused) bzero( keyBuffer, sizeof(keyBuffer) ); // fill with zeroes (for padding) [key getCString: keyBuffer maxLength: sizeof(keyBuffer) encoding: NSUTF8StringEncoding]; // encrypts in-place, since this is a mutable data object size_t numBytesEncrypted = 0; size_t returnLength = ([encryptData length] + kCCBlockSize3DES) & ~(kCCBlockSize3DES - 1); // NSMutableData* returnBuffer = [NSMutableData dataWithLength:returnLength]; char* returnBuffer = malloc(returnLength * sizeof(uint8_t) ); CCCryptorStatus ccStatus = CCCrypt(kCCEncrypt, kCCAlgorithm3DES , kCCOptionECBMode, keyBuffer, kCCKeySize3DES, nil, [encryptData bytes], [encryptData length], returnBuffer, returnLength, &numBytesEncrypted); if (ccStatus == kCCParamError) NSLog(@"PARAM ERROR"); else if (ccStatus == kCCBufferTooSmall) NSLog(@"BUFFER TOO SMALL"); else if (ccStatus == kCCMemoryFailure) NSLog(@"MEMORY FAILURE"); else if (ccStatus == kCCAlignmentError) NSLog(@"ALIGNMENT"); else if (ccStatus == kCCDecodeError) NSLog(@"DECODE ERROR"); else if (ccStatus == kCCUnimplemented) NSLog(@"UNIMPLEMENTED"); if(ccStatus == kCCSuccess) { NSLog(@"TripleDESEncryptWithKey encrypted: %@", [NSData dataWithBytes:returnBuffer length:numBytesEncrypted]); return [NSData dataWithBytes:returnBuffer length:numBytesEncrypted]; } else return nil; } } I do get a value encrypted using the above code, however it does not match the value from the .NET web service. I believe the issue is that the encryption key I have been supplied by the web service developers is 48 characters long. I see that the iPhone SDK constant "kCCKeySize3DES" is 24. So I SUSPECT, but don't know, that the commoncrypto API call is only using the first 24 characters of the supplied key. Is this correct? Is there ANY way I can get this to generate the correct encrypted pin? I have output the data bytes from the encryption PRIOR to base64 encoding it and have attempted to match this against those generated from the .NET code (with the help of a .NET developer who sent the byte array output to me). Neither the non-base64 encoded byte array nor the final base64 encoded strings match.

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  • X509Certificate.Export Method

    - by klerik123456
    I try export cert .pfx : string certPath = "D:\\cert.pfx"; cert = new X509Certificate2(certPath, "pass"); byte[] certData = cert.Export(X509ContentType.Pfx,"pass"); /// **error in this line** X509Certificate newCert = new X509Certificate(certData,"pass"); But it finish with this error : Key not valid for use in specified state. Can somebody help me ?? Any solution as export certificate from store ??

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  • WCF chunking/streaming - make it transparent for client

    - by bybor
    While developing WCF service i've faced problem of transferring large data as method params ( 4 Mb of raw size, not considering transfer/message overhead). The solution for this problem is to use chunking or streaming, but all the samples i've seen assume client is aware of used method and uses available block size for sending/receiving portions of data, and the problem (for me) is that it's not possible to call just one method, like SaveData(DataInformation info) but write wrapper method which will instead iterate smth like SaveDataChunk(byte[] buffer) Could it be somehow made transparent for client, just calling 'SaveData'?

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  • WPF DataGrid multiselect binding

    - by JZ
    I have a datagrid that is multi-select enabled. I need to change the selection in the viewmodel. However, the SelectedItems property is read only and can't be directly bound to a property in the viewmodel. So how do I signal to the view that the selection has changed?

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  • BouncyCastle GCM/CCM Exceprion in JAVA

    - by 4r1y4n
    can anyone give me an example for using GCM and/or CCM modes with AES in BouncyCastle? My code is this: SecretKeySpec key = new SecretKeySpec(keyBytes, "AES"); IvParameterSpec ivSpec = new IvParameterSpec(ivBytes); Cipher cipher = Cipher.getInstance("AES/AEAD/PKCS5Padding", "BC"); byte[] block = new byte[1048576]; int i; long st,et; cipher.init(Cipher.ENCRYPT_MODE, key, ivSpec); BufferedInputStream bIn=new BufferedInputStream(new ProgressMonitorInputStream(null,"Encrypting ...",new FileInputStream("input"))); CipherInputStream cIn = new CipherInputStream(bIn, cipher); BufferedOutputStream bOut=new BufferedOutputStream(new FileOutputStream("output.enc")); int ch; while ((i = cIn.read(block)) != -1) { bOut.write(block, 0, i); } cIn.close(); bOut.close(); Thread.sleep(5000); cipher.init(Cipher.DECRYPT_MODE, key, ivSpec); BufferedInputStream fis=new BufferedInputStream(new ProgressMonitorInputStream(null,"Decrypting ...",new FileInputStream("output.enc"))); //FileInputStream fis=new FileInputStream("output.enc"); //FileOutputStream ro=new FileOutputStream("regen.plain"); BufferedOutputStream ro=new BufferedOutputStream(new FileOutputStream("regen.plain")); CipherInputStream dcIn = new CipherInputStream(fis, cipher); while ((i = dcIn.read(block)) != -1) { ro.write(block, 0, i); } dcIn.close(); ro.close(); but it throws this exception when decrypting in GCM mode (line 70 is bOut.write(block, 0, i);): Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException at java.lang.System.arraycopy(Native Method) at org.bouncycastle.crypto.modes.CCMBlockCipher.processPacket(Unknown Source) at org.bouncycastle.crypto.modes.CCMBlockCipher.doFinal(Unknown Source) at org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher$AEADGenericBlockCipher.doFinal(Unknown Source) at org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher.engineDoFinal(Unknown Source) at javax.crypto.Cipher.doFinal(DashoA13*..) at javax.crypto.CipherInputStream.a(DashoA13*..) at javax.crypto.CipherInputStream.read(DashoA13*..) at javax.crypto.CipherInputStream.read(DashoA13*..) at enctest.Main.main(Main.java:70) And this Exception when encrypting in CCM mode (line 70 is bOut.write(block, 0, i);): Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException at java.lang.System.arraycopy(Native Method) at org.bouncycastle.crypto.modes.CCMBlockCipher.processPacket(Unknown Source) at org.bouncycastle.crypto.modes.CCMBlockCipher.doFinal(Unknown Source) at org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher$AEADGenericBlockCipher.doFinal(Unknown Source) at org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher.engineDoFinal(Unknown Source) at javax.crypto.Cipher.doFinal(DashoA13*..) at javax.crypto.CipherInputStream.a(DashoA13*..) at javax.crypto.CipherInputStream.read(DashoA13*..) at javax.crypto.CipherInputStream.read(DashoA13*..) at enctest.Main.main(Main.java:70)

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  • ASP.NET MVC 2 loading partial view using jQuery - no client side validation

    - by brainnovative
    I am using jQuery.load() to render a partial view. This part looks like this: $('#sizeAddHolder').load( '/MyController/MyAction', function () { ... }); The code for actions in my controller is the following: public ActionResult MyAction(byte id) { var model = new MyModel { ObjectProp1 = "Some text" }; return View(model); } [HttpPost] public ActionResult MyAction(byte id, FormCollection form) { // TODO: DB insert logic goes here var result = ...; return Json(result); } I am returning a partial view that looks something like this: <% using (Html.BeginForm("MyAction", "MyController")) {%> <%= Html.ValidationSummary(true) %> <h3>Create my object</h3> <fieldset> <legend>Fields</legend> <div class="editor-label"> <%= Html.LabelFor(model => model.ObjectProp1) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Size.ObjectProp1) %> <%= Html.ValidationMessageFor(model => model.ObjectProp1) %> </div> div class="editor-label"> <%= Html.LabelFor(model => model.ObjectProp2) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.ObjectProp2) %> <%= Html.ValidationMessageFor(model => model.ObjectProp2) %> </div> <p> <input type="submit" value="Create" /> </p> </fieldset> <% } %> Client side validation does not work in this case. What is more the script that contains validation messages also isn't included in the view that's returned. Both properties in my model class have Required and StringLength attributes. Is there any way to trigger client side validation in a view which has been loaded like this?

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  • Uploading multiple images through Tumblr API

    - by Joseph Carrington
    I have about 300 images I want to upload to my new Tumblr account, becuase my old wordpress site got hacked and I no longer wish to use wordpress. I uploaded one image a day for 300 days, and I'd like to be able to take these images and upload them to my tumblr site using the api. The images are currently local, stored in /images/. They all have the date they were uploaded as the first ten characters of the filename, (01-01-2009-filename.png) and I went to send this date parameter along as well. I want to be able to see the progress of the script by outputting the responses from the API to my error_log. Here is what I have so far, based on the tumblr api page. // Authorization info $tumblr_email = '[email protected]'; $tumblr_password = 'password'; // Tumblr script parameters $source_directory = "images/"; // For each file, assign the file to a pointer here's the first stumbling block. How do I get all of the images in the directory and loop through them? Once I have a for or while loop set up I assume this is the next step $post_data = fopen(dir(__FILE__) . $source_directory . $current_image, 'r'); $post_date = substr($current_image, 0, 10); // Data for new record $post_type = 'photo'; // Prepare POST request $request_data = http_build_query( array( 'email' => $tumblr_email, 'password' => $tumblr_password, 'type' => $post_type, 'data' => $post_data, 'date' => $post_date, 'generator' => 'Multi-file uploader' ) ); // Send the POST request (with cURL) $c = curl_init('http://www.tumblr.com/api/write'); curl_setopt($c, CURLOPT_POST, true); curl_setopt($c, CURLOPT_POSTFIELDS, $request_data); curl_setopt($c, CURLOPT_RETURNTRANSFER, true); $result = curl_exec($c); $status = curl_getinfo($c, CURLINFO_HTTP_CODE); curl_close($c); // Output response to error_log error_log($result); So, I'm stuck on how to use PHP to read a file directory, loop through each of the files, and do things to the name / with the file itself. I also need to know how to set the data parameter, as in choosing multi-part / formdata. I also don't know anything about cURL.

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  • Image Erosion for face detection in C#

    - by Chris Dobinson
    Hi, I'm trying to implement face detection in C#. I currently have a black + white outline of a photo with a face within it (Here). However i'm now trying to remove the noise and then dilate the image in order to improve reliability when i implement the detection. The method I have so far is here: unsafe public Image Process(Image input) { Bitmap bmp = (Bitmap)input; Bitmap bmpSrc = (Bitmap)input; BitmapData bmData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb); int stride = bmData.Stride; int stride2 = bmData.Stride * 2; IntPtr Scan0 = bmData.Scan0; byte* p = (byte*)(void*)Scan0; int nOffset = stride - bmp.Width * 3; int nWidth = bmp.Width - 2; int nHeight = bmp.Height - 2; var w = bmp.Width; var h = bmp.Height; var rp = p; var empty = CompareEmptyColor; byte c, cm; int i = 0; // Erode every pixel for (int y = 0; y < h; y++) { for (int x = 0; x < w; x++, i++) { // Middle pixel cm = p[y * w + x]; if (cm == empty) { continue; } // Row 0 // Left pixel if (x - 2 > 0 && y - 2 > 0) { c = p[(y - 2) * w + (x - 2)]; if (c == empty) { continue; } } // Middle left pixel if (x - 1 > 0 && y - 2 > 0) { c = p[(y - 2) * w + (x - 1)]; if (c == empty) { continue; } } if (y - 2 > 0) { c = p[(y - 2) * w + x]; if (c == empty) { continue; } } if (x + 1 < w && y - 2 > 0) { c = p[(y - 2) * w + (x + 1)]; if (c == empty) { continue; } } if (x + 2 < w && y - 2 > 0) { c = p[(y - 2) * w + (x + 2)]; if (c == empty) { continue; } } // Row 1 // Left pixel if (x - 2 > 0 && y - 1 > 0) { c = p[(y - 1) * w + (x - 2)]; if (c == empty) { continue; } } if (x - 1 > 0 && y - 1 > 0) { c = p[(y - 1) * w + (x - 1)]; if (c == empty) { continue; } } if (y - 1 > 0) { c = p[(y - 1) * w + x]; if (c == empty) { continue; } } if (x + 1 < w && y - 1 > 0) { c = p[(y - 1) * w + (x + 1)]; if (c == empty) { continue; } } if (x + 2 < w && y - 1 > 0) { c = p[(y - 1) * w + (x + 2)]; if (c == empty) { continue; } } // Row 2 if (x - 2 > 0) { c = p[y * w + (x - 2)]; if (c == empty) { continue; } } if (x - 1 > 0) { c = p[y * w + (x - 1)]; if (c == empty) { continue; } } if (x + 1 < w) { c = p[y * w + (x + 1)]; if (c == empty) { continue; } } if (x + 2 < w) { c = p[y * w + (x + 2)]; if (c == empty) { continue; } } // Row 3 if (x - 2 > 0 && y + 1 < h) { c = p[(y + 1) * w + (x - 2)]; if (c == empty) { continue; } } if (x - 1 > 0 && y + 1 < h) { c = p[(y + 1) * w + (x - 1)]; if (c == empty) { continue; } } if (y + 1 < h) { c = p[(y + 1) * w + x]; if (c == empty) { continue; } } if (x + 1 < w && y + 1 < h) { c = p[(y + 1) * w + (x + 1)]; if (c == empty) { continue; } } if (x + 2 < w && y + 1 < h) { c = p[(y + 1) * w + (x + 2)]; if (c == empty) { continue; } } // Row 4 if (x - 2 > 0 && y + 2 < h) { c = p[(y + 2) * w + (x - 2)]; if (c == empty) { continue; } } if (x - 1 > 0 && y + 2 < h) { c = p[(y + 2) * w + (x - 1)]; if (c == empty) { continue; } } if (y + 2 < h) { c = p[(y + 2) * w + x]; if (c == empty) { continue; } } if (x + 1 < w && y + 2 < h) { c = p[(y + 2) * w + (x + 1)]; if (c == empty) { continue; } } if (x + 2 < w && y + 2 < h) { c = p[(y + 2) * w + (x + 2)]; if (c == empty) { continue; } } // If all neighboring pixels are processed // it's clear that the current pixel is not a boundary pixel. rp[i] = cm; } } bmpSrc.UnlockBits(bmData); return bmpSrc; } As I understand it, in order to erode the image (and remove the noise), we need to check each pixel to see if it's surrounding pixels are black, and if so, then it is a border pixel and we need not keep it, which i believe my code does, so it is beyond me why it doesn't work. Any help or pointers would be greatly appreciated Thanks, Chris

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  • Interfacing Android Nexus One with Arduino + BlueSmirf

    - by efgomez
    I'm a bit new to all of this, so bear with me - I'd really appreciate your help. I am trying to link the Android Nexus One with an arduino (Duemilanove) that is connected to a BlueSmirf. I have a program that is simply outputting the string "Hello Bluetooth" to whatever device the BlueSmirf is connected to. Here is the Arduino program: void setup(){ Serial.begin(115200); int i; } void loop(){Serial.print("Hello Bluetooth!"); delay(1000); } One my computer BT terminal I can see the message and connect no problem. The trouble is with my android code. I can connect to the device with android, but when I look at the log it is not displaying "Hello Bluetooth". Here is the debug log: 04-09 16:27:49.022: ERROR/BTArduino(17288): FireFly-2583 connected 04-09 16:27:49.022: ERROR/BTArduino(17288): STARTING TO CONNECT THE SOCKET 04-09 16:27:55.705: ERROR/BTArduino(17288): Received: 16 04-09 16:27:56.702: ERROR/BTArduino(17288): Received: 1 04-09 16:27:56.712: ERROR/BTArduino(17288): Received: 15 04-09 16:27:57.702: ERROR/BTArduino(17288): Received: 1 04-09 16:27:57.702: ERROR/BTArduino(17288): Received: 15 04-09 16:27:58.704: ERROR/BTArduino(17288): Received: 1 04-09 16:27:58.704: ERROR/BTArduino(17288): Received: 15 ect... Here is the code, I'm trying to put only the relative code but if you need more please let me know: private class ConnectThread extends Thread { private final BluetoothSocket mySocket; private final BluetoothDevice myDevice; public ConnectThread(BluetoothDevice device) { myDevice = device; BluetoothSocket tmp = null; try { tmp = device.createRfcommSocketToServiceRecord(MY_UUID); } catch (IOException e) { Log.e(TAG, "CONNECTION IN THREAD DIDNT WORK"); } mySocket = tmp; } public void run() { Log.e(TAG, "STARTING TO CONNECT THE SOCKET"); InputStream inStream = null; boolean run = false; //...More Connection code here... The more relative code is here: byte[] buffer = new byte[1024]; int bytes; // handle Connection try { inStream = mySocket.getInputStream(); while (run) { try { bytes = inStream.read(buffer); Log.e(TAG, "Received: " + bytes); } catch (IOException e3) { Log.e(TAG, "disconnected"); } } I am reading bytes = inStream.read(buffer). I know bytes is an integer, so I tried sending integers over bluetooth because "bytes" was an integer but it still didn't make sense. It almost appears that is sending incorrect baud rate. Could this be true? Any help would be appreciated. Thank you very much.

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  • Android Mediaplayer: setDataSource issue for downloaded media file

    - by Erik
    I have an application that will record and play audio files. Some of the audio files are downloaded using simple standard http downloads using httpclient. It worked like a charm for a long time. Now all of a sudden I cannot play the files I download. It fails with this stack. I store the files on the SDCard and I experience the problem both on a handset and a USB connected device. I have checked that the downloaded file is cool on the server, and I can play it without any issues. These are the code snippets I use ( I know that recordingFile is a valid path for the file). // inside the activity class private void playRecording() throws IOException{ File recordingFile = new File(recordingFileName); FileInputStream recordingInputStream = new FileInputStream(recordingFile); audioMediaPlayer.playAudio(recordingInputStream); } Here is the media player code: // inside my media player class which handles the recordings public void playAudio(FileInputStream audioInputStream) throws IOException { mediaPlayer.reset(); mediaPlayer.setDataSource(audioInputStream.getFD()); mediaPlayer.prepare(); mediaPlayer.start(); } Here is the exception: E/MediaPlayerService( 555): offset error E/MediaPlayer( 786): Unable to to create media player W/System.err( 786): java.io.IOException: setDataSourceFD failed.: status=0x80000000 W/System.err( 786): at android.media.MediaPlayer.setDataSource(Native Method) W/System.err( 786): at android.media.MediaPlayer.setDataSource(MediaPlayer.java:632) W/System.err( 786): at net.xxx.xxx.AudioMediaPlayer.playAudio(AudioMediaPlayer.java:69) W/System.err( 786): at net.xxx.xxx.Downloads.playRecording(Downloads.java:299) W/System.err( 786): at net.xxx.xxx.Downloads.access$0(Downloads.java:294) W/System.err( 786): at net.xxx.xxx.Downloads$1.onClick(Downloads.java:135) I have tried seeking some answer of the offset error, but not really clear what this issue might be. PS I download the file with this code: public FileOutputStream executeHttpGet(FileOutputStream fileOutputStream) throws ClientProtocolException, IOException{ try { // Execute HTTP Post Request httpResponse = httpClient.execute(httpPost, localContext); int status = httpResponse.getStatusLine().getStatusCode(); // we assume that the response body contains the error message if (status != HttpStatus.SC_OK) { ByteArrayOutputStream ostream = new ByteArrayOutputStream(); httpResponse.getEntity().writeTo(ostream); fileOutputStream = null; } else { InputStream content = httpResponse.getEntity().getContent(); byte[] buffer = new byte[1024]; int len = 0; while ( (len = content.read(buffer)) > 0 ) { fileOutputStream.write(buffer,0, len); } fileOutputStream.close(); content.close(); // this will also close the connection } } catch (ClientProtocolException e1) { // TODO Auto-generated catch block e1.printStackTrace(); fileOutputStream = null; } catch (IOException e2) { // TODO Auto-generated catch block e2.printStackTrace(); fileOutputStream = null; } return fileOutputStream; }

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  • Different Azure blob streams when using .Net client vs. REST interface

    - by knightpfhor
    I have encountered an unusual difference in the way that the .Net client for Azure and the direct REST API bring back streams of binary data. If I use the CloundBlob.DownloadToStream() vs. getting the response stream from the HTTP response, I get streams with the same length, but different content. Specifically the REST response seems to 0 out a series of bytes. I've discovered this issue because I'm trying to use the byte range feature for blobs which is currently not supported in the .Net client (if I'm wrong on this point and someone can point at where I can do this it might make the rest of this question irrelevant). If I upload a binary representation of the first 2k unicode characters with this code: Public Sub WriteFoo() Dim Blob As CloudBlob Dim Stream1 As MemoryStream Dim Container As CloudBlobContainer Dim Builder As StringBuilder Dim NextCharacter As String Dim Formatter As BinaryFormatter Container = CloudStorageAccount.DevelopmentStorageAccount.CreateCloudBlobClient.GetContainerReference("testcontainer") Container.CreateIfNotExist() Blob = Container.GetBlobReference("Foo") Stream1 = New MemoryStream() Builder = New Text.StringBuilder() For Index As Integer = 1 To 2000 Select Case Index Case Is <= 9 NextCharacter = ChrW(9) Case Is <= 31 NextCharacter = Environment.NewLine Case 127 NextCharacter = Environment.NewLine Case Else NextCharacter = ChrW(Index) End Select Builder.Append(NextCharacter) Next Formatter = New BinaryFormatter() Formatter.Serialize(Stream1, Builder.ToString()) Stream1.Position = 0 Blob.UploadFromStream(Stream1) End Sub Then try to access it with the following code: Public Sub ReadFoo() Dim Blob As CloudBlob Dim Request As System.Net.HttpWebRequest Dim Response As System.Net.WebResponse Dim ResponseSize As Integer Dim ResponseBuffer As Byte() Dim ResponseStream As Stream Dim Stream1 As MemoryStream Dim Stream2 As MemoryStream Dim Container As CloudBlobContainer Dim Byte1 As Integer Dim Byte2 As Integer Container = CloudStorageAccount.DevelopmentStorageAccount.CreateCloudBlobClient.GetContainerReference("testcontainer") Container.CreateIfNotExist() Blob = Container.GetBlobReference("Foo") Stream1 = New MemoryStream() Stream2 = New MemoryStream() Blob.DownloadToStream(Stream1) Request = DirectCast(System.Net.WebRequest.Create(Blob.Uri), System.Net.HttpWebRequest) Request.Headers.Add("x-ms-version", "2009-09-19") Request.Headers.Add("x-ms-range", String.Format("bytes={0}-{1}", 0, Integer.MaxValue)) Blob.Container.ServiceClient.Credentials.SignRequest(Request) Response = Request.GetResponse() ResponseStream = Response.GetResponseStream() ResponseSize = CInt(Response.ContentLength) ReDim ResponseBuffer(ResponseSize - 1) ResponseStream.Read(ResponseBuffer, 0, ResponseSize) Stream2.Write(ResponseBuffer, 0, ResponseSize) Stream1.Position = 0 Stream2.Position = 0 If Stream1.Length <> Stream2.Length Then System.Diagnostics.Debug.WriteLine(String.Format("Streams a different length. 1: {0}. 2: {1}", Stream1.Length, Stream2.Length)) Else While Stream1.Position < Stream1.Length Byte1 = Stream1.ReadByte() Byte2 = Stream2.ReadByte() If Byte1 <> Byte2 Then System.Diagnostics.Debug.WriteLine(String.Format("Streams differ at position {0}, 1: {1}. 2: {2}", Stream1.Position - 1, Byte1, Byte2)) End If End While End If End Sub Past all certain point all of the data in Stream2 (the data I've retrieved from the REST api) ends up being 0. To make matters even more confusing, when I reverse the order that I put the characters in the string e.g. For Index As Integer = 2000 To 1 rather than For Index As Integer = 1To 2000 it all works OK. Any help is much appreciated. My computer is sick of me swearing at it.

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  • Looking for more details about "Group varint encoding/decoding" presented in Jeff's slides

    - by Mickey Shine
    I noticed that in Jeff's slides "Challenges in Building Large-Scale Information Retrieval Systems", which can also be downloaded here: http://research.google.com/people/jeff/WSDM09-keynote.pdf, a method of integers compression called "group varint encoding" was mentioned. It was said much faster than 7 bits per byte integer encoding (2X more). I am very interested in this and looking for an implementation of this, or any more details that could help me implement this by myself. I am not a pro and new to this, and any help is welcome!

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  • Detecting EOF in a Binary File using Scheme

    - by yuguang
    (define (read-all-input) (local ((define line (bytes->list (read-bytes 4)))) (if (eof-object? line) empty (cons line (read-all-input))))) (void (read-all-input)) The above code fails because bytes-list expects an argument of type byte string, but is given #

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  • Android - Getting audio to play through earpiece

    - by Donal Rafferty
    I currently have code that reads a recording in from the devices mic using the AudioRecord class and then playing it back out using the AudioTrack class. My problem is that when I play it out it plays vis the speaker phone. I want it to play out via the ear piece on the device. Here is my code: public class LoopProg extends Activity { boolean isRecording; //currently not used AudioManager am; int count = 0; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); am = (AudioManager) getSystemService(Context.AUDIO_SERVICE); am.setMicrophoneMute(true); while(count <= 1000000){ Record record = new Record(); record.run(); count ++; Log.d("COUNT", "Count is : " + count); } } public class Record extends Thread { static final int bufferSize = 200000; final short[] buffer = new short[bufferSize]; short[] readBuffer = new short[bufferSize]; public void run() { isRecording = true; android.os.Process.setThreadPriority (android.os.Process.THREAD_PRIORITY_URGENT_AUDIO); int buffersize = AudioRecord.getMinBufferSize(11025, AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT); AudioRecord arec = new AudioRecord(MediaRecorder.AudioSource.MIC, 11025, AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT, buffersize); AudioTrack atrack = new AudioTrack(AudioManager.STREAM_MUSIC, 11025, AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT, buffersize, AudioTrack.MODE_STREAM); am.setRouting(AudioManager.MODE_NORMAL,1, AudioManager.STREAM_MUSIC); int ok = am.getRouting(AudioManager.ROUTE_EARPIECE); Log.d("ROUTING", "getRouting = " + ok); setVolumeControlStream(AudioManager.STREAM_VOICE_CALL); //am.setSpeakerphoneOn(true); Log.d("SPEAKERPHONE", "Is speakerphone on? : " + am.isSpeakerphoneOn()); am.setSpeakerphoneOn(false); Log.d("SPEAKERPHONE", "Is speakerphone on? : " + am.isSpeakerphoneOn()); atrack.setPlaybackRate(11025); byte[] buffer = new byte[buffersize]; arec.startRecording(); atrack.play(); while(isRecording) { arec.read(buffer, 0, buffersize); atrack.write(buffer, 0, buffer.length); } arec.stop(); atrack.stop(); isRecording = false; } } } As you can see if the code I have tried using the AudioManager class and its methods including the deprecated setRouting method and nothing works, the setSpeatPoneOn method seems to have no effect at all, neither does the routing method. Has anyone got any ideas on how to get it to play via the earpiece instead of the spaker phone?

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  • Custom fonts, ellipsis on MultiLine TextViews, Glyphs and glitches.

    - by Samuh
    I am required to use custom fonts in my application. Problem: For ListViews that contain rows with Multi-Line TextViews having ellipsize property set to true, I can see some illegible characters after the ellipsis. Apparently Android pads the String(in TextView) with some characters unknown to my custom font. Single line TextView seem to work just fine. What is the best way to hide these characters or remove the padding? Thanks.

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  • How to send audio stream via UDP in java?

    - by Nob Venoda
    Hi to all :) I have a problem, i have set MediaLocator to microphone input, and then created Player. I need to grab that sound from the microphone, encode it to some lower quality stream, and send it as a datagram packet via UDP. Here's the code, i found most of it online and adapted it to my app: public class AudioSender extends Thread { private MediaLocator ml = new MediaLocator("javasound://44100"); private DatagramSocket socket; private boolean transmitting; private Player player; TargetDataLine mic; byte[] buffer; private AudioFormat format; private DatagramSocket datagramSocket(){ try { return new DatagramSocket(); } catch (SocketException ex) { return null; } } private void startMic() { try { format = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED, 8000.0F, 16, 2, 4, 8000.0F, true); DataLine.Info info = new DataLine.Info(TargetDataLine.class, format); mic = (TargetDataLine) AudioSystem.getLine(info); mic.open(format); mic.start(); buffer = new byte[1024]; } catch (LineUnavailableException ex) { Logger.getLogger(AudioSender.class.getName()).log(Level.SEVERE, null, ex); } } private Player createPlayer() { try { return Manager.createRealizedPlayer(ml); } catch (IOException ex) { return null; } catch (NoPlayerException ex) { return null; } catch (CannotRealizeException ex) { return null; } } private void send() { try { mic.read(buffer, 0, 1024); DatagramPacket packet = new DatagramPacket( buffer, buffer.length, InetAddress.getByName(Util.getRemoteIP()), 91); socket.send(packet); } catch (IOException ex) { Logger.getLogger(AudioSender.class.getName()).log(Level.SEVERE, null, ex); } } @Override public void run() { player = createPlayer(); player.start(); socket = datagramSocket(); transmitting = true; startMic(); while (transmitting) { send(); } } public static void main(String[] args) { AudioSender as = new AudioSender(); as.start(); } } And only thing that happens when I run the receiver class, is me hearing this Player from the sender class. And I cant seem to see the connection between TargetDataLine and Player. Basically, I need to get the sound form player, and somehow convert it to bytes[], therefore I can sent it as datagram. Any ideas? Everything is acceptable, as long as it works :)

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