Can copy only 8 files at once!

It drives me crazy! I wrote a small utility to help me with some issues that we are dealing with in the House and he made that move the jpg of the memory of the device on the SD card. The problem I encounter is that there are 57 files on this particular device and my code will copy only 8 files before the slightest error on. I have marked the place where the problem is with 'TODO' If you want to find the place in the code below. Basically, it fails when creating the file 9. I checked the space SD card - that's fine. I used a different set of files and it still does not work on the file 9. The file names are very simple, so no problem there. That's all just weird.

private int moveFilesToCard(String directory, Vector files)
{
    String SDCardDir = "file:///SDCard/Blackberry/Pictures/";
    int index = files.size();
    int count = 0;

    //Main loop through the list of files to be copied
    _screen.updateStatus("Copying files...");
    for( int i = 0; i < index; i++ )
    {
        String name = (String) files.elementAt(i);
        FileConnection iFile;

        try
        {
            // Attempt to open the source file
            _screen.updateStatus("Opening " + directory + name);
            iFile = (FileConnection)Connector.open(directory + name);
            if(!iFile.exists())
            {
                throw new IOException("Input file could not be opened when copying.");
            }

            // Attempt to open the destination file
            _screen.updateStatus("Opening " + SDCardDir + name);
            FileConnection oFile = (FileConnection) Connector.open(SDCardDir + name);
            if(!oFile.exists())
            {
                // Create file if it doesn't exist
                _screen.updateStatus("Creating " + directory + name);
                oFile.create();   //<------- TODO: This is where it fails on the 8th file.
            }

            // Open the input and output streams for copying the file.
            InputStream is = iFile.openInputStream();
            OutputStream os = oFile.openOutputStream();
            _screen.updateStatus("Reading " + name);

            // Copy the data over
            int data = is.read();
            while( data >= 0 )
            {
                os.write(data);
                data = is.read();
            }
            _screen.updateStatus("Writing " + name);
            os.flush();
            count++;

            iFile.close();
            oFile.close();
        }
        catch (IOException e)
        {
            if( Dialog.ask( Dialog.D_YES_NO, "Error opening or creating " + name + ". Continue?" ) == Dialog.NO )
            {
                break;
            }
            e.printStackTrace();
        }
    }
    return count;
}

You can close your connections and streams in the 'finally' section to make sure that they close.

You close the stream, just the connections. You can close the stream too to be sure. BlackBerry has a limit on the number of open connections, you can have.

It should also be a message with your IOException. Check the log output

Tags: BlackBerry Developers

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