src/eu/alefzero/webdav/FileRequestEntity.java

   1 package eu.alefzero.webdav;
   2
   3 import java.io.File;
   4 import java.io.IOException;
   5 import java.io.OutputStream;
   6 import java.io.RandomAccessFile;
   7 import java.nio.ByteBuffer;
   8 import java.nio.channels.FileChannel;
   9 import java.nio.channels.FileLock;
  10
  11 import org.apache.commons.httpclient.methods.RequestEntity;
  12
  13 import eu.alefzero.webdav.OnDatatransferProgressListener;
  14
  15 import android.util.Log;
  16
  17
  18 /**
  19  * A RequestEntity that represents a File.
  20  *
  21  */
  22 public class FileRequestEntity implements RequestEntity {
  23
  24     final File mFile;
  25     final String mContentType;
  26     OnDatatransferProgressListener mListener;
  27
  28     public FileRequestEntity(final File file, final String contentType) {
  29         super();
  30         this.mFile = file;
  31         this.mContentType = contentType;
  32         if (file == null) {
  33             throw new IllegalArgumentException("File may not be null");
  34         }
  35     }
  36
  37     @Override
  38     public long getContentLength() {
  39         return mFile.length();
  40     }
  41
  42     @Override
  43     public String getContentType() {
  44         return mContentType;
  45     }
  46
  47     @Override
  48     public boolean isRepeatable() {
  49         return true;
  50     }
  51
  52     public void setOnDatatransferProgressListener(OnDatatransferProgressListener listener) {
  53         mListener = listener;
  54     }
  55
  56     @Override
  57     public void writeRequest(final OutputStream out) throws IOException {
  58         //byte[] tmp = new byte[4096];
  59         ByteBuffer tmp = ByteBuffer.allocate(4096);
  60         int i = 0;
  61
  62         // TODO(bprzybylski): each mem allocation can throw OutOfMemoryError we need to handle it
  63         //                    globally in some fashionable manner
  64         RandomAccessFile raf = new RandomAccessFile(mFile, "rw");
  65         FileChannel channel = raf.getChannel();
  66         FileLock lock = channel.tryLock();
  67         //InputStream instream = new FileInputStream(this.file);
  68
  69         try {
  70             //while ((i = instream.read(tmp)) >= 0) {
  71             while ((i = channel.read(tmp)) >= 0) {
  72                 out.write(tmp.array(), 0, i);
  73                 tmp.clear();
  74                 if (mListener != null)
  75                     mListener.transferProgress(i);
  76             }
  77         } catch (IOException io) {
  78             Log.e("FileRequestException", io.getMessage());
  79             throw new RuntimeException("Ugly solution to workaround the default policy of retries when the server falls while uploading ; temporal fix; really", io);
  80
  81         } finally {
  82             //instream.close();
  83             lock.release();
  84             channel.close();
  85             raf.close();
  86         }
  87     }
  88
  89 }