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 file;
  25     final String contentType;
  26     OnDatatransferProgressListener listener;
  27
  28     public FileRequestEntity(final File file, final String contentType) {
  29         super();
  30         if (file == null) {
  31             throw new IllegalArgumentException("File may not be null");
  32         }
  33         this.file = file;
  34         this.contentType = contentType;
  35     }
  36
  37     public long getContentLength() {
  38         return this.file.length();
  39     }
  40
  41     public String getContentType() {
  42         return this.contentType;
  43     }
  44
  45     public boolean isRepeatable() {
  46         return true;
  47     }
  48
  49     public void setOnDatatransferProgressListener(OnDatatransferProgressListener listener) {
  50         this.listener = listener;
  51     }
  52
  53     public void writeRequest(final OutputStream out) throws IOException {
  54         //byte[] tmp = new byte[4096];
  55         ByteBuffer tmp = ByteBuffer.allocate(4096);
  56         int i = 0;
  57
  58         FileChannel channel = new RandomAccessFile(this.file, "rw").getChannel();
  59         FileLock lock = channel.tryLock();
  60         //InputStream instream = new FileInputStream(this.file);
  61
  62         try {
  63             //while ((i = instream.read(tmp)) >= 0) {
  64             while ((i = channel.read(tmp)) >= 0) {
  65                 out.write(tmp.array(), 0, i);
  66                 tmp.clear();
  67                 if (listener != null)
  68                     listener.transferProgress(i);
  69             }
  70         } catch (IOException io) {
  71             Log.e("FileRequestException", io.getMessage());
  72             throw new RuntimeException("Ugly solution to workaround the default policy of retries when the server falls while uploading ; temporal fix; really", io);
  73
  74         } finally {
  75             //instream.close();
  76             lock.release();
  77             channel.close();
  78         }
  79     }
  80
  81 }