Byte array problem

I Reading the Servlet request content in dopost() method into file, But i am obeseving my file is different if i sent 5 kb or more data my out put file become's leass in size always showing 3kb.
Please Tell me where i am doing mistake
          File _file = null;
          BufferedOutputStream bufferedOutputStream = null ;
          InputStream _inputStream =request.getInputStream();
     try{
          file= new File("E:"+File.separator+"TesttIn");
          bufferedOutputStream = new BufferedOutputStream(new FileOutputStream(_file));
               int Maxsize = 1*1024*1024;
               byte [] buf = new byte[8192];
               int count = _inputStream.read(buf);
               while (count != -1)
                         if (count > 0)
                              bufferedOutputStream.write(buf, 0, count);
                         count = _inputStream.read(buf);
          }catch(Exception exception){
               _logger.error("Exception while Reading Client Data "+exception.getMessage());
               response.sendError(HttpServletResponse.SC_REQUEST_TIMEOUT);
               _file.delete();
               return;
          }finally{
               if(bufferedOutputStream!=null)bufferedOutputStream.close();
               if(_inputStream!=null)_inputStream.close();
          }*/

Except for some little style issues, I can't find anything wrong with your code;
could you post the code that handles the sending part of the data?
kind regards,
Jos

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Assigning value to a two-dimensional byte array - problem or not?

I am facing a really strange issue.
I have a 2D byte array of 10 rows and a byte array of some audio bytes:
byte[][] buf = new byte[10][];
byte[] a = ~ some bytes read from an audio streamWhen I assign like this:
for (int i=0; i<10; i++) {
    a = ~read some audio bytes // this method properly returns a byte[]
    buf[i] = a;
}the assignment is not working!!!
If I use this:
for (int i=0; i<10; i++) {
    a = ~read some audio bytes
    for (int j=0; j<a.length; j++) {
        buf[i][j] = a[j];
}or this:
for (int i=0; i<10; i++) {
    System.arraycopy(a, 0, buf, 0, a.length);
}everything works fine, which is really odd!!
I use this type of value assignment for the first time in byte arrays.
However, I never had the same problem with integers, where the problem does not appear:int[] a = new int[] {1, 2, 3, 4, 5};
int[][] b = new int[3][5];
for (int i=0; i<3; i++) {
b[i] = a;
// This works fineAnybody has a clue about what's happening?
Is it a Java issue or a programmers mistake?

Back again! I'm trying to track down the problem.
Here is most of my actual code to get a better idea.
private void test() {
     byte[][] buf1 = new byte[11][];
     byte[][] buf2 = new byte[11][];
     AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(audioFile);
     byte[] audioBytes = new byte[100];
     int serialNumber = 0;
     while (audioInputStream.read(audioBytes) != -1) {
          if (serialNumber == 10) {
               serialNumber = 0; // breakpoint here for debugging
          // Fill buf1 -- working
          for (int i=0; i<audioBytes.length; i++) {
               buf1[serialNumber] = audioBytes[i];
          // Fill buf2 -- not working
          buf2[serialNumber] = new byte[audioBytes.length];
          buf2[serialNumber] = audioBytes;
          serialNumber++;
}I debugged the program, using a debug point after taking 10 "groups" of byte arrays (audioBytes) from the audio file.
The result (as also indicated later by the audio output) is this:
At the debug point the values of buf1's elements change in every loop, while buf2's remain unchanged, always having the initial value of audioBytes!
It's really strange and annoying. These are the debugging results for the [first|http://eevoskos.googlepages.com/loop1.jpg] , [second|http://eevoskos.googlepages.com/loop2.jpg] and [third|http://eevoskos.googlepages.com/loop3.jpg] loop.
I really can't see any mistake in the code.
Could it be a Netbeans 6.1 bug or something?
The problem appears both with jdk 5 or 6.

OVS byte array problem

Hi,
I have created a custom controller that implements the functionality for OVS.
The OVS retrieves a parameter called guid of the datatype byte[].
I need to set this guid (from cust controller)to a context attribute called Elementid (on View) which is also of the same datatype i.e. byte[].
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Hi,
The sub node for guid is 1..1 and non-singleton.
This is the code I use in applyResult() where I set the Elementname:
applicationNodeElement.setAttributeValue("Elementname", queryOutputNodeElement.getAttributeAsText("Text1"));
The code in the main controller, where I am trying to set the ElementId.
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Converting bytes to character array problem

I am trying to convert a byte array into a character array, however no matter which Character Set i choose i am always getting the '?' character for some of the bytes which means that it was unable to convert the byte to a character.
What i want is very simple. i.e. map the byte array to its Extended ASCII format which actually is no change in the bit represtation of the actual byte. But i cannot seem to do this in java.
Does anyone have any idea how to get around this problem?

Thanks for responding.
I have however arrived at a solution. A little un-elegant but it seems to do the job.
I am converting each byte into char manually by this algorithm:
          for (int i=0;i<compressedDataLength;i++)
               if (((int) output)<0)
                    k=(127-((int) output[i]));
                    outputChr[i]=((char) k);
               else
                    k=((int) output[i]);
                    outputChr[i]=((char) k);
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where output is the byte array and outputChr is the character array

Problem in reading/writing byte array in Access database! PLEASE HELP!!

Hi,
I want to store a signature, which is in form of a byte array, in OLE Object field in MS Access database. I want then to retrieve this signature and verify it. The problem is that the retrieved byte array is not identical to the stored (original) one, and therefore, verifying the signature fails! Any help would be much appreciated as I can't proceed in my project without solving this problem. Here is the code to do the above mentioned functionality:
//This part stores the signature (VT) in the table TTPTrans
try
{ con = connect();
ps = con.prepareStatement("UPDATE TTPTrans SET VT = ?, SigVT = ? WHERE TransID = ?");
ps.setBinaryStream(1, new ByteArrayInputStream(vt), vt.length);
ps.setBinaryStream(2, new ByteArrayInputStream(sigvt), sigvt.length);
ps.setString(3, tID);
ps.executeUpdate();
ps.close();
con.close();
catch (Exception e)
{ System.err.println(e.getMessage());
e.printStackTrace();
//This part retrive the signature from the table in the byte array o1:
ResultSet result;
byte[] o1 = null;
byte[] o2 = null;
try
{ con = connect();
Statement statement = con.createStatement();
result = statement.executeQuery("SELECT VT, SigVT" +
" FROM TTPTrans" +
" WHERE TransID = " + "'" +
transID + "'");
while (result.next()) {
o1 = result.getBytes("VT");
o2 = result.getBytes("SigVT");
statement.close();
con.close();
catch(Exception e)
{ System.err.println(e.getMessage());
e.printStackTrace();
}

In the following code, I use a ASN1SDSSSignature class, which is a subclass that I created from the Siganture class, to create and verify an SDSS signature. The ASN1SDSSSignature has two ASN1Integer class variables:
signcryption = token.getSigncryption();
sig.initVerify(ttpCert);
sig.update(receivedVT);
boolean verified = sig.verify(receivedSigVT);
if(!verified)
System.err.println("TTP signatire on received token invalid. ");
notify()
return;
Where receivedVT and receivedSigVT are the byte arrays retrieved from th database. The following exception is thrown when I run the application:
ASN1 type mismatch!
Expected: codec.asn1.ASN1Integer
In: ASN1SDSSSignature
At index 0
Got tag: 4 and Class: 0
I hope this would clarify the situation and thanks in advance for any comments you may post.

Problem with string constructor when using byte array as parameter

I am creating a string using constructor and passing byte array as parameter.This byte array i am getting from MessageDigest's digest() method,i.e. a hash value.
The problem is when i iterate through byte array i can able to print all the values in byte array.But when i construct a string from that byte array and printing that string ,that is printing some unknown characters.
I don't know whether i need to pass charsequence to the constructor and the type of charsequence.Can anybody help me?
Thanks in advance

Is there some problem today? I'm getting this sort of thing all over.
I already told you and so did Kayaman. Don't. String is not a holder for binary data. You have to Base-64 encode it. If you don't you cannot reconstruct the original binary digest value, so putting it into a database is completely utterly and entirely pointless.
Is that clear enough?

Byte array to base64encoder problem, cannot encode a 7.7 MB file

hey guys, so ive been trying to use the base64encoder to encode a bytearray which is then sent thru a webservice to the server to be decoded.
and as the subject of this post suggests, i have been having problems encoding a big file,
forexample i tried to upload/convert a 84KB image and it worked just fine... the trace of the string ended with a "==" which i believe means that the conversion is complete...
but when i try to upload a 7.7MB image, it is, i guess, crashing... i dont see any "==" in the string... so i guess its not working... i was wondering if there is any any type of file size limit or soemthign for the encoding...
the code i have is
import flash.events.Event;
import flash.net.FileFilter;
import flash.net.FileReference;
import flash.utils.ByteArray;
import mx.collections.ArrayCollection;
import mx.controls.Alert;
import mx.rpc.events.FaultEvent;
import mx.rpc.events.ResultEvent;
import mx.utils.Base64Encoder;
import services.images.ImageData;
import services.images.Images;
import services.images.ReturnMessage;
// ActionScript file
    public var fileRef:FileReference = new FileReference();
    public var imgCollection:ArrayCollection = new ArrayCollection();
    public var imgService:Images = new Images();
    public var imageData:ImageData = new ImageData();
    public var returnMsg:ReturnMessage = new ReturnMessage();
    public function onBrowseButtonClicked(event:MouseEvent):void{
        var arr:Array = [];
        arr.push(new FileFilter("Images", ".gif;*.jepg;*.jpg;*.png"));
        fileRef.browse(arr);
        fileRef.addEventListener(Event.SELECT, fileRef_select);
        fileRef.addEventListener(Event.COMPLETE, fileRef_complete);
    public function fileRef_select(event:Event):void{
        fileRef.load();
    public function fileRef_complete(event:Event):void{
        img.source = fileRef.data;
        var fileByteArr:ByteArray = fileRef.data;
        var b64En:Base64Encoder = new Base64Encoder();
        b64En.encodeBytes(fileByteArr);                                                  //<----------------------------------------------------------
        var str:String = b64En.flush();                                                        //<----------------------------------------------------------
        trace(str.length);
        b64En.reset();
        trace("------------------------------------      " + str + "     -----------------------------");
        imageData.Base64EncodedImage = str;
        imageData.FileName = "nameofstring";
        imgService.UploadImage(imageData);
       imgService.addEventListener(FaultEvent.FAULT, servFault);
       imgService.addEventListener(ResultEvent.RESULT, imgServSuccess);
    public function imgServSuccess(event:ResultEvent):void{
        Alert.show("i am in the result");
        returnMsg = event.result as ReturnMessage;
        var resultStr:String = event.result as String;
        Alert.show(resultStr);
        if(returnMsg.ThereWasAnError){
            trace(returnMsg.ErrorMessages.getItemAt(0).toString());
    public function servFault(event:FaultEvent):void{
        Alert.show("2 " + event.fault.message);
        Alert.show("3 " + event.fault.faultCode);
any help will be greatly appretiated!! thanks in advace!

yeah i did actually... except i think i changed a LOT of code since i last posted this article...
so i dont remember where this code is exactly... lol
i have the following code now...
hope this helps
i use a a lot of webservices... so there is some of that code included in there aswell...
* This file will do the file upload. It has been suggested to me multiple times, that using a queueing system for
* file upload is not a good idea. Instead I declared a counter and used the final function to fire the next item
* in the array. this also makes canceling a routine easier.
import flash.events.Event;
import flash.events.ProgressEvent;
import flash.net.FileReference;
import flash.net.FileReferenceList;
import flash.utils.ByteArray;
import mx.collections.ArrayCollection;
import mx.controls.*;
import mx.managers.*;
import mx.rpc.events.FaultEvent;
import mx.rpc.events.ResultEvent;
import mx.utils.Base64Decoder;
import mx.utils.Base64Encoder;
import services.images.Images;
import valueObjects.*;
    public var t:Number = 0;
    public var fileRef:FileReferenceList = new FileReferenceList();
    public var listCacheFiles:Array = new Array();
    [Bindable] public var fileListArr:Array = new Array();
    [Bindable] public var fileNames:ArrayCollection = new ArrayCollection();
    [Bindable] public var arrUploadFiles:Array = new Array();
    public var file:FileReference;
    public var _numCurrentUpload:Number = 0;
    public var imageData:valueObjects.ImageData;
    public var imageService:Images = new Images();
    public var saveImages:Images;
    public var returnMsg:ReturnMessage = new ReturnMessage();
    public var dataToSave:ImageData;
    public var myCounter:int = 0;
    public var numPerc:Number;
    /*vars to possible delete*/
    public var fileListx:ArrayCollection;
     * Initiates the browse, when files are selected the selectionHandler function is called
    public function initiateBrowse():void{
        var filter:Array = [];
        filter.push(new FileFilter("Images", ".gif;*.jepg;*.jpg;*.png"));
        fileRef.addEventListener(Event.SELECT, selectionHandler);
        fileRef.browse(filter);
     * selection handler takes the selected files and puts them in 2 different arrays
     * fileListArr contains all the file information like the image itself and the name and everything
     * fileNames contains the information essential to populate the datagrid in the cropper.mxml
    public function selectionHandler(event:Event):void{
        //trace("selection Handler ->>");
        fileRef.removeEventListener(Event.SELECT, selectionHandler);
        var numSelected:int = event.target.fileList.length;
        var fileList:Array = event.target.fileList;
        fileListx = new ArrayCollection();
        fileListx = event.target.fileList as ArrayCollection;
        //var oldListLength:Number = fileListArr.length;
        for each(var item:Object in fileList){
            fileListArr.push(item);
            fileNames.addItem({
                num: fileNames.length + 1,
                name: item.name,
                size: formatFileSize(item.size),
                status: "",
                itemDetails: item
        var newListLength:Number = fileListArr.length;
        if(myCounter > 0)
            loopList(myCounter);
        else
            loopList(0);
     * this function starts one, new filereference for each files in the array
    public function loopList(value:int):void{
        //trace("looplist -->");
        if(value < fileListArr.length){
            _numCurrentUpload = value;
            file = new FileReference();
            file = FileReference(fileListArr[value]);;
            file.addEventListener(Event.COMPLETE, loadImage);
            file.addEventListener(ProgressEvent.PROGRESS, fileProgress);
            file.load();
     * This function will convert the byte array into a string, and then it sends it to the server.
    public function loadImage(event:Event):void{
        trace("loadImage -->");
        file.removeEventListener(Event.COMPLETE, loadImage);
            myCounter += 1;
            var fileByteArr:ByteArray = event.target.data;
            var b64En:Base64Encoder = new Base64Encoder();
            b64En.encodeBytes(fileByteArr);
            var str:String = b64En.flush();
            imageData = new ImageData();
            imageData.Base64EncodedImage = str;
            imageData.FileName = event.target.name;
            trace("sending -->> " + imageData.FileName);
            updateStatus("Sending to server");
            imageService.addEventListener(ResultEvent.RESULT, imgServSuccess);
            imageService.UploadImage(imageData);
            b64En.reset();
     * This function will decode the information recieved back from the server.
    public function imgServSuccess(event:ResultEvent):void{
        trace("imgServSuccess -->");
        imageService.removeEventListener(ResultEvent.RESULT, imgServSuccess);
        var returnedImageId:ArrayCollection = new ArrayCollection();
        returnMsg = event.result as ReturnMessage;
        var returnedData:Object = event.result.Images;
        var imgD:ImageData = new ImageData();
        if(returnMsg.ThereWasAnError){
            trace(returnMsg.ErrorMessages.getItemAt(0).toString());
        else{
            for each(var imgData:ImageData in returnedData){
                var decoded:Base64Decoder = new Base64Decoder();
                decoded.decode(imgData.Base64EncodedImage);
                var byteArr:ByteArray = decoded.toByteArray();
                //img.source = byteArr;
            dataToSave = new ImageData();
            dataToSave = returnedData[0];
            listCacheFiles.push(dataToSave);
            updateStatus("Item in Cache");
            //uploadDetails.visible = true;
            loopList(myCounter);
    public var win:itemDetails;
    public function itemClicking(event:Event):void{
        var fileName:String = event.currentTarget.dataProvider[0].name;
        for(var i:Number = 0; i < listCacheFiles.length; i++){
        //var temp:ImageData = event.target as ImageData;
        win = null;
        win = itemDetails(PopUpManager.createPopUp(this, itemDetails, true));
        win.title = "Enter Details";
        PopUpManager.centerPopUp(win);
        win["save"].addEventListener("click", popupClosed);
    public function popupClosed(event:Event):void{
        var returnedData:ImageData = new ImageData;
        returnedData = win.dataToSave;
        saveImgAndData(returnedData);
    public function saveImgAndData(data:ImageData):void{
        saveImages = new Images;
        saveImages.showBusyCursor = true;
        saveImages.addEventListener(ResultEvent.RESULT, savedSuccess);
        saveImages.addEventListener(FaultEvent.FAULT, faultFunc);
        saveImages.SaveUploadedImageInformation(data);
    public function faultFunc(event:FaultEvent):void{
        Alert.show(event.fault.message);
        Alert.show(event.fault.faultString);
    public function savedSuccess(event:ResultEvent):void{
        //trace("savedSuccess -->");
        var retMsg:Object = event.result.Images;
        //trace("saving -->> " + retMsg[0].FileName);
        updateStatus("Completed");
        //loopList(myCounter);
    private function formatFileSize(numSize:Number):String {
        var strReturn:String;
        numSize = Number(numSize / 1024);
        strReturn = String(numSize.toFixed(1) + " KB");
        if (numSize > 1024) {
            numSize = numSize / 1024;
            strReturn = String(numSize.toFixed(1) + " MB");
            if (numSize > 1024) {
                numSize = numSize / 1024;
                strReturn = String(numSize.toFixed(1) + " GB");
        return strReturn;
    public function removeFiles():void{
        var arrSelected:Array = displayFilesList.selectedIndices;
        if(arrSelected.length >= 1){
            for(var i:Number = 0; i < arrSelected.length; i++){
                fileNames[Number(arrSelected[i])] = null;
            var idx:int = 1;
            for(var j:Number = 0; j < fileNames.length; j++){
                if(fileNames[j] == null){
                    fileNames.removeItemAt(j);
                    j--;
                }else{
                    fileNames[j].num = idx++;
            if(fileNames.length > 0)
                displayFilesList.selectedIndex = 0;
            else
                displayFilesList.selectedIndex = -1;
            _numCurrentUpload--;
            updateProgBar();
    private function updateStatus(status:String, index:Number = -1):void{
        index = _numCurrentUpload;
        fileNames[index].status = status;
        displayFilesList.invalidateList();
    public function fileProgress(event:ProgressEvent):void{
        //trace("fileProgress -->");
        var numPerc:Number = Math.round((Number(event.bytesLoaded) / Number(event.bytesTotal)) * 100);
        updateStatus("Uploading: " + numPerc.toString() + "%");
        updateProgBar(numPerc);
        var evt:ProgressEvent = new ProgressEvent("uploadProgress", false, false, event.bytesLoaded, event.bytesTotal);
        dispatchEvent(evt);
    public function updateProgBar(numPerc:Number = 0):void{
        //trace("updateProgBar -->");
        var strLabel:String = (_numCurrentUpload + 1) + "/" + fileNames.length;
        progBar.label = strLabel;
        progBar.setProgress(_numCurrentUpload + numPerc / 100, fileNames.length);
        progBar.validateNow();

Problem with byte array arguments in webservice method call

I am using JWSDP 1.5 to generate client stubs for a webservice hosted on a Windows 2000 platform.
One of the methods of the webservice contains a byte array argument. When our application calls this method passing the contents of a TIFF file as the byte array, the method is failing. I have discovered that tthe reason for the failure is that the byte array in the SOAP message has been truncated and is missing its terminating tag.
Is this a known problem in JWSDP 1.5? Is there a fix for it? Does JWSDP 1.6 resolve this problem?
Any assistance will be much appreciated.
Regards,
Leo

I'd like to add the the webservice being invoked by the generated client stubs is rpc/encoded.

Problem in using the install()'s byte array values?

I tried to pass the values to the OwnerPIN object at the time of initialization. But when I try to install the applet I will get 6A80 error code . Can anybody tell me why I am getting this message. And if i use some different data values for pin.update() then I wont come across those error codes
public static void install(byte[] bArray, short bOffset, byte bLength)     {
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                register();
cm> install -i a00000006203010c0601 -l -q C9#(1122331122331122) a00000006203010c06 a00000006203010c0601
=> 80 E6 0C 00 2E 09 A0 00 00 00 62 03 01 0C 06 0A    ..........b.....
    A0 00 00 00 62 03 01 0C 06 01 0A A0 00 00 00 62    ....b..........b
    03 01 0C 06 01 01 10 0A C9 08 11 22 33 11 22 33    ..........."3."3
    11 22 00 00
( 5411 usec)
<= 6A 80

GP 2.1.1, A.2 GlobalPlatform on a Java Card, Installation:
Installation
In Section 3.1 - The Method install of the Java Card� 2.1.1 Runtime Environment (JCRE) Specifications,
the parameters passed to the method are defined to be initialization parameters from the contents of the incoming
byte array parameter.
In the definition of the install method of the Class Applet of the Java Card� 2.1.1 Application Programming
Interface, the install parameters to be supplied must be in the format defined by the applet.
This specification expands on this requirement and further defines the content of the install parameters. This
expansion affects both the implementation of an OPEN and the behavior of a Java Card applet developed for a
GlobalPlatform card. It does not affect the definition of the install method of the Class Applet of the Java
Card� 2.1.1 Application Programming Interface specification.
The install parameters shall identify the following data, present in the INSTALL [for install] command (see
Section 9.5.2.3.2 - Data Field for INSTALL [for install]):
� The instance AID,
� The Application Privileges and,
� The Application Specific Parameters.
[While the APDU command contains install parameters representing TLV coded system and application specific parameters, the
application only requires knowledge of the Application Specific Parameters i.e. only LV of the TLV coded structure �C9� are
present as parameters.]
The OPEN is responsible for ensuring that the parameters (bArray, bOffset and bLength) contain the
following information:
The array, bArray, shall contain the following consecutive LV coded data:
_� Length of the instance AID,_
_� The instance AID,_
_� Length of the Application Privileges,_
_� The Application Privileges,_
_� Length of the Application Specific Parameters and,_
_� The Application Specific Parameters._
The byte, bOffset, shall contain an offset within the array pointing to the length of the instance AID.
The byte, bLength, shall contain a length indicating the total length of the above-defined data in the array.
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Repost: Problem with byte array

i wrote the following code:
public class Test {
byte [] ba = new byte[10];
void print(String s) { System.out.println(s); }
void printInitialValues() {
for (int i=0; i<10; i++)
ba = (byte)0;
//System.arraycopy("asdf".getBytes(), 0, ba, 0, 4);*/
print("byte array " + ba);
public static void main(String[] args) {
Test iv = new Test();
iv.printInitialValues();
}why the output isn't the string of the serial '0', instead, it seems the random output.
when i put the line "System...." to the code, the result is the same.
Can anybody tell me why?
Regards,
Jason

Your byte[] is an object of the type Array. Array does
not override toString(), and thus you get the default
Object.toString() behavior. If you want to print out
the array elements, you'll need to iterate through the
array manually.And in 1.5 you can use this:
Arrays.toString(byteArray);/Kaj

Problem with byte array

i wrote the following code:
public class Test {
byte [] ba = new byte[10];
void print(String s) { System.out.println(s); }
void printInitialValues() {
for (int i=0; i<10; i++)
ba[i] = (byte)0;
//System.arraycopy("asdf".getBytes(), 0, ba, 0, 4);*/
print("byte array " + ba);
public static void main(String[] args) {
Test iv = new Test();
iv.printInitialValues();
why the output isn't the string of serial '0', instead, it seems the random output.
when i put the line "System...." to the code, the result is the same.
Anybody can tell me why?
Regards,
Jason

Continued [url http://forum.java.sun.com/thread.jsp?forum=31&thread=551032&tstart=0&trange=15]here.

How Do I Load An Animated GIF Into PictureBox Control From Byte Array?

I'm having a problem with loading an animated GIF int a picturebox control in a C# program after it has been converted to a base64 string, then converted to a byte array, then written to binary, then converted to a base64 string again, then converted to
a byte array, then loaded into a memory stream and finally into a picturebox control.
Here's the step-by-step code I've written:
1. First I open an animated GIF from a file and load it directly into a picturebox control. It animates just fine.
2. Next I convert the image in the picturebox control (pbTitlePageImage) to a base64 string as shown in the code below:
                if (pbTitlePageImage.Image != null)
                    string Image2BConverted;
                    using (Bitmap bm = new Bitmap(pbTitlePageImage.Image))
                        using (MemoryStream ms = new MemoryStream())
                            bm.Save(ms, ImageFormat.Jpeg);
                            Image2BConverted = Convert.ToBase64String(ms.ToArray());
                            GameInfo.TitlePageImage = Image2BConverted;
                            ms.Close();
                            GameInfo.TitlePageImagePresent = true;
                            ProjectNeedsSaving = true;
3. Then I write the base64 string to a binary file using FileStream and BinaryWriter.
4. Next I get the image from the binary file using FileStream and BinaryReader and assign it to a string variable. It is now a base64 string again.
5. Next I load the base64 string into a byte array, then I load it into StreamReader and finally into the picturebox control (pbGameImages) as shown in the code below:
byte[] TitlePageImageBuffer = Convert.FromBase64String(GameInfo.TitlePageImage);
                        MemoryStream memTitlePageImageStream = new MemoryStream(TitlePageImageBuffer, 0, TitlePageImageBuffer.Length);
                        memTitlePageImageStream.Write(TitlePageImageBuffer, 0, TitlePageImageBuffer.Length);
                        memTitlePageImageStream.Position = 0;
                        pbGameImages.Image = Image.FromStream(memTitlePageImageStream, true);
                        memTitlePageImageStream.Close();
                        memTitlePageImageStream = null;
                        TitlePageImageBuffer = null;
This step-by-step will work with all image file types except animated GIFs (standard GIFs work fine). It looks like it's just taking one frame from the animation and loading it into the picturebox. I need to be able to load the entire animation. Does any of
the code above cause the animation to be lost? Any ideas?

There is an ImageAnimator so you may not need to use byte array instead.
ImageAnimator.Animate Method
http://msdn.microsoft.com/en-us/library/system.drawing.imageanimator.animate(v=vs.110).aspx
chanmm
chanmm

Convert byte array to table of int

[http://www.codeproject.com/KB/database/PassingArraysIntoSPs.aspx?display=Print|http://www.codeproject.com/KB/database/PassingArraysIntoSPs.aspx?display=Print] Hello friends.
I'm pretty new with PL/SQL.
I have code that run well on MSSQL and I want to convert it to PL/SQL with no luck.
The code converts byte array to table of int.
The byte array is actually array of int that was converted to bytes in C# for sending it as parameter.
The TSQL code is:
CREATE FUNCTION dbo.GetTableVarchar(@Data image)
RETURNS @DataTable TABLE (RowID int primary key IDENTITY ,
Value Varchar(8000))
AS
BEGIN
--First Test the data is of type Varchar.
IF(dbo.ValidateExpectedType(103, @Data)<>1) RETURN
--Loop thru the list inserting each
-- item into the variable table.
DECLARE @Ptr int, @Length int,
@VarcharLength smallint, @Value Varchar(8000)
SELECT @Length = DataLength(@Data), @Ptr = 2
WHILE(@Ptr<@Length)
BEGIN
--The first 2 bytes of each item is the length of the
--varchar, a negative number designates a null value.
SET @VarcharLength = SUBSTRING(@Data, @ptr, 2)
SET @Ptr = @Ptr + 2
IF(@VarcharLength<0)
SET @Value = NULL
ELSE
BEGIN
SET @Value = SUBSTRING(@Data, @ptr, @VarcharLength)
SET @Ptr = @Ptr + @VarcharLength
END
INSERT INTO @DataTable (Value) VALUES(@Value)
END
RETURN
END
It's taken from http://www.codeproject.com/KB/database/PassingArraysIntoSPs.aspx?display=Print.
The C# code is:
public byte[] Convert2Bytes(int[] list)
if (list == null || list.Length == 0)
return new byte[0];
byte[] data = new byte[list.Length * 4];
int k = 0;
for (int i = 0; i < list.Length; i++)
byte[] intBytes = BitConverter.GetBytes(list);
for (int j = intBytes.Length - 1; j >= 0; j--)
data[k++] = intBytes[j];
return data;
I tryied to convert the TSQL code to PL/SQL and thats what I've got:
FUNCTION GetTableInt(p_Data blob)
RETURN t_array --t_array is table of int
AS
l_Ptr number;
l_Length number;
l_ID number;
l_data t_array;
BEGIN
     l_Length := dbms_lob.getlength(p_Data);
l_Ptr := 1;
     WHILE(l_Ptr<=l_Length)
     loop
          l_ID := to_number( DBMS_LOB.SUBSTR (p_Data, 4, l_ptr));
          IF(l_ID<-2147483646)THEN
               IF(l_ID=-2147483648)THEN
                    l_ID := NULL;
               ELSE
                    l_Ptr := l_Ptr + 4;
                    l_ID := to_number( DBMS_LOB.SUBSTR(p_Data, 4,l_ptr));
               END IF;
               END IF;
l_data(l_data.count) := l_ID;
          l_Ptr := l_Ptr + 4;
     END loop;
     RETURN l_data;
END GetTableInt;
This isn't work.
This is the error:
Error report:
ORA-06502: PL/SQL: numeric or value error: character to number conversion error
06502. 00000 - "PL/SQL: numeric or value error%s"
I think the problem is in this line:
l_ID := to_number( DBMS_LOB.SUBSTR (p_Data, 4, l_ptr));
but I don't know how to fix that.
Thanks,
MTs.

I'd found the solution.
I need to write:
l_ID := utl_raw.cast_to_binary_integer( DBMS_LOB.SUBSTR(p_Data, 4,l_ptr));
instead of:
l_ID := to_number( DBMS_LOB.SUBSTR (p_Data, 4, l_ptr));
The performance isn't good, it's take 2.8 sec to convert 5000 int, but it's works.

Converting ASCII text (byte array ending in null) to a String

Hi all,
I am trying to convert a null terminated ascii string stored in a byte array to a java String. When I pass the byte array to the String constructor it
does not detect/interpret the null as a terminator for the ascii string. Is this something I have to manually program in? ie Check for where the null is and then
pass that subarray of everything before the null to the String constructor?
example of problem
// A B C D null F (note F is junk in the array, and should be ignored since it is after null)
byte[] asciiArray = { 65, 66, 67, 68, 0, 70 };
System.out.println(new String(asciiArray, "UTF-8"));
//this prints ABCD"sqare icon"F

Why do you expect the null character to terminate the string? If you come from a C or C++ background, you need to understand that java.lang.String is not just a mere character array. It's a full-fledged Java object that knows its length without having any need for null terminator. So Ascii 0 is just another character for String object. To achieve what you want to do, you have to manually loop through the byte array and stop when you encounter a null character.

How do I read directly from file into byte array

I am reading an image from a file into a BuffertedImage then writing it out again into an array of bytes which I store and use later on in the program. Currently Im doing this in two stages is there a way to do it it one go to speed things up.
try
            //Read File Contents into a Buffered Image
            /** BUG 4705399: There was a problem with some jpegs taking ages to load turns out to be
             * (at least partially) a problem with non-standard colour models, which is why we set the
             * destination colour model. The side effect should be standard colour model in subsequent reading.
            BufferedImage bi = null;
            ImageReader ir = null;
            ImageInputStream stream = ImageIO.createImageInputStream(new File(path));
            final Iterator i = ImageIO.getImageReaders(stream);
            if (i.hasNext())
                ir = (ImageReader) i.next();
                ir.setInput(stream);
                ImageReadParam param = ir.getDefaultReadParam();
                ImageTypeSpecifier typeToUse = null;
                for (Iterator i2 = ir.getImageTypes(0); i2.hasNext();)
                    ImageTypeSpecifier type = (ImageTypeSpecifier) i2.next();
                    if (type.getColorModel().getColorSpace().isCS_sRGB())
                        typeToUse = type;
                if (typeToUse != null)
                    param.setDestinationType(typeToUse);
                bi = ir.read(0, param);
                //ir.dispose(); seem to reference this in write
                //stream.close();
            //Write Buffered Image to Byte ArrayOutput Stream
            if (bi != null)
                //Convert to byte array
                final ByteArrayOutputStream output = new ByteArrayOutputStream();
                //Try and find corresponding writer for reader but if not possible
                //we use JPG (which is always installed) instead.
                final ImageWriter iw = ImageIO.getImageWriter(ir);
                if (iw != null)
                    if (ImageIO.write(bi, ir.getFormatName(), new DataOutputStream(output)) == false)
                        MainWindow.logger.warning("Unable to Write Image");
                else
                    if (ImageIO.write(bi, "JPG", new DataOutputStream(output)) == false)
                        MainWindow.logger.warning("Warning Unable to Write Image as JPEG");
                //Add to image list
                final byte[] imageData = output.toByteArray();
                Images.addImage(imageData);


If you don't need to manipulate the image in any way I would suggest you just read the image file directly into a byte array (without ImageReader) and then create the BufferedImage from that byte array.

Byte array problem

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