oc_framework/src/com/owncloud/android/lib/network/FileRequestEntity.java

   1 /* ownCloud Android Library is available under MIT license
   2  *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
   3  *   Copyright (C) 2012  Bartek Przybylski
   4  *
   5  *   Permission is hereby granted, free of charge, to any person obtaining a copy
   6  *   of this software and associated documentation files (the "Software"), to deal
   7  *   in the Software without restriction, including without limitation the rights
   8  *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   9  *   copies of the Software, and to permit persons to whom the Software is
  10  *   furnished to do so, subject to the following conditions:
  11  *
  12  *   The above copyright notice and this permission notice shall be included in
  13  *   all copies or substantial portions of the Software.
  14  *
  15  *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  *   THE SOFTWARE.
  23  *
  24  */
  25
  26 package com.owncloud.android.lib.network;
  27
  28 import java.io.File;
  29 import java.io.IOException;
  30 import java.io.OutputStream;
  31 import java.io.RandomAccessFile;
  32 import java.nio.ByteBuffer;
  33 import java.nio.channels.FileChannel;
  34 import java.util.Collection;
  35 import java.util.HashSet;
  36 import java.util.Iterator;
  37 import java.util.Set;
  38
  39 import org.apache.commons.httpclient.methods.RequestEntity;
  40
  41 import android.util.Log;
  42
  43
  44
  45 /**
  46  * A RequestEntity that represents a File.
  47  *
  48  */
  49 public class FileRequestEntity implements RequestEntity, ProgressiveDataTransferer {
  50
  51     final File mFile;
  52     final String mContentType;
  53     Set<OnDatatransferProgressListener> mDataTransferListeners = new HashSet<OnDatatransferProgressListener>();
  54
  55     public FileRequestEntity(final File file, final String contentType) {
  56         super();
  57         this.mFile = file;
  58         this.mContentType = contentType;
  59         if (file == null) {
  60             throw new IllegalArgumentException("File may not be null");
  61         }
  62     }
  63
  64     @Override
  65     public long getContentLength() {
  66         return mFile.length();
  67     }
  68
  69     @Override
  70     public String getContentType() {
  71         return mContentType;
  72     }
  73
  74     @Override
  75     public boolean isRepeatable() {
  76         return true;
  77     }
  78
  79     @Override
  80     public void addDatatransferProgressListener(OnDatatransferProgressListener listener) {
  81         synchronized (mDataTransferListeners) {
  82             mDataTransferListeners.add(listener);
  83         }
  84     }
  85
  86     @Override
  87     public void addDatatransferProgressListeners(Collection<OnDatatransferProgressListener> listeners) {
  88         synchronized (mDataTransferListeners) {
  89             mDataTransferListeners.addAll(listeners);
  90         }
  91     }
  92
  93     @Override
  94     public void removeDatatransferProgressListener(OnDatatransferProgressListener listener) {
  95         synchronized (mDataTransferListeners) {
  96             mDataTransferListeners.remove(listener);
  97         }
  98     }
  99
 100
 101     @Override
 102     public void writeRequest(final OutputStream out) throws IOException {
 103         //byte[] tmp = new byte[4096];
 104         ByteBuffer tmp = ByteBuffer.allocate(4096);
 105         int readResult = 0;
 106
 107         // TODO(bprzybylski): each mem allocation can throw OutOfMemoryError we need to handle it
 108         //                    globally in some fashionable manner
 109         RandomAccessFile raf = new RandomAccessFile(mFile, "r");
 110         FileChannel channel = raf.getChannel();
 111         Iterator<OnDatatransferProgressListener> it = null;
 112         long transferred = 0;
 113         long size = mFile.length();
 114         if (size == 0) size = -1;
 115         try {
 116             while ((readResult = channel.read(tmp)) >= 0) {
 117                 out.write(tmp.array(), 0, readResult);
 118                 tmp.clear();
 119                 transferred += readResult;
 120                 synchronized (mDataTransferListeners) {
 121                     it = mDataTransferListeners.iterator();
 122                     while (it.hasNext()) {
 123                         it.next().onTransferProgress(readResult, transferred, size, mFile.getAbsolutePath());
 124                     }
 125                 }
 126             }
 127
 128         } catch (IOException io) {
 129             Log.e("FileRequestException", io.getMessage());
 130             throw new RuntimeException("Ugly solution to workaround the default policy of retries when the server falls while uploading ; temporal fix; really", io);
 131
 132         } finally {
 133             channel.close();
 134             raf.close();
 135         }
 136     }
 137
 138 }