src/eu/alefzero/webdav/FileRequestEntity.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012 Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License as published by
   7  *   the Free Software Foundation, either version 2 of the License, or
   8  *   (at your option) any later version.
   9  *
  10  *   This program is distributed in the hope that it will be useful,
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *   GNU General Public License for more details.
  14  *
  15  *   You should have received a copy of the GNU General Public License
  16  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 package eu.alefzero.webdav;
  21
  22 import java.io.File;
  23 import java.io.IOException;
  24 import java.io.OutputStream;
  25 import java.io.RandomAccessFile;
  26 import java.nio.ByteBuffer;
  27 import java.nio.channels.FileChannel;
  28 import java.util.Collection;
  29 import java.util.HashSet;
  30 import java.util.Iterator;
  31 import java.util.Set;
  32
  33 import org.apache.commons.httpclient.methods.RequestEntity;
  34
  35 import com.owncloud.android.Log_OC;
  36
  37 import eu.alefzero.webdav.OnDatatransferProgressListener;
  38
  39 import android.util.Log;
  40
  41
  42 /**
  43  * A RequestEntity that represents a File.
  44  *
  45  */
  46 public class FileRequestEntity implements RequestEntity {
  47
  48     final File mFile;
  49     final String mContentType;
  50     Set<OnDatatransferProgressListener> mDataTransferListeners = new HashSet<OnDatatransferProgressListener>();
  51
  52     public FileRequestEntity(final File file, final String contentType) {
  53         super();
  54         this.mFile = file;
  55         this.mContentType = contentType;
  56         if (file == null) {
  57             throw new IllegalArgumentException("File may not be null");
  58         }
  59     }
  60
  61     @Override
  62     public long getContentLength() {
  63         return mFile.length();
  64     }
  65
  66     @Override
  67     public String getContentType() {
  68         return mContentType;
  69     }
  70
  71     @Override
  72     public boolean isRepeatable() {
  73         return true;
  74     }
  75
  76     public void addOnDatatransferProgressListener(OnDatatransferProgressListener listener) {
  77         mDataTransferListeners.add(listener);
  78     }
  79
  80     public void addOnDatatransferProgressListeners(Collection<OnDatatransferProgressListener> listeners) {
  81         mDataTransferListeners.addAll(listeners);
  82     }
  83
  84     public void removeOnDatatransferProgressListener(OnDatatransferProgressListener listener) {
  85         mDataTransferListeners.remove(listener);
  86     }
  87
  88
  89     @Override
  90     public void writeRequest(final OutputStream out) throws IOException {
  91         //byte[] tmp = new byte[4096];
  92         ByteBuffer tmp = ByteBuffer.allocate(4096);
  93         int readResult = 0;
  94
  95         // TODO(bprzybylski): each mem allocation can throw OutOfMemoryError we need to handle it
  96         //                    globally in some fashionable manner
  97         RandomAccessFile raf = new RandomAccessFile(mFile, "r");
  98         FileChannel channel = raf.getChannel();
  99         Iterator<OnDatatransferProgressListener> it = null;
 100         long transferred = 0;
 101         long size = mFile.length();
 102         if (size == 0) size = -1;
 103         try {
 104             while ((readResult = channel.read(tmp)) >= 0) {
 105                 out.write(tmp.array(), 0, readResult);
 106                 tmp.clear();
 107                 transferred += readResult;
 108                 it = mDataTransferListeners.iterator();
 109                 while (it.hasNext()) {
 110                     it.next().onTransferProgress(readResult, transferred, size, mFile.getName());
 111                 }
 112             }
 113
 114         } catch (IOException io) {
 115             Log_OC.e("FileRequestException", io.getMessage());
 116             throw new RuntimeException("Ugly solution to workaround the default policy of retries when the server falls while uploading ; temporal fix; really", io);
 117
 118         } finally {
 119             channel.close();
 120             raf.close();
 121         }
 122     }
 123
 124 }