oc_framework/src/com/owncloud/android/oc_framework/network/webdav/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.oc_framework.network.webdav;
  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 import com.owncloud.android.oc_framework.network.ProgressiveDataTransferer;
  44
  45
  46 /**
  47  * A RequestEntity that represents a File.
  48  *
  49  */
  50 public class FileRequestEntity implements RequestEntity, ProgressiveDataTransferer {
  51
  52     final File mFile;
  53     final String mContentType;
  54     Set<OnDatatransferProgressListener> mDataTransferListeners = new HashSet<OnDatatransferProgressListener>();
  55
  56     public FileRequestEntity(final File file, final String contentType) {
  57         super();
  58         this.mFile = file;
  59         this.mContentType = contentType;
  60         if (file == null) {
  61             throw new IllegalArgumentException("File may not be null");
  62         }
  63     }
  64
  65     @Override
  66     public long getContentLength() {
  67         return mFile.length();
  68     }
  69
  70     @Override
  71     public String getContentType() {
  72         return mContentType;
  73     }
  74
  75     @Override
  76     public boolean isRepeatable() {
  77         return true;
  78     }
  79
  80     @Override
  81     public void addDatatransferProgressListener(OnDatatransferProgressListener listener) {
  82         synchronized (mDataTransferListeners) {
  83             mDataTransferListeners.add(listener);
  84         }
  85     }
  86
  87     @Override
  88     public void addDatatransferProgressListeners(Collection<OnDatatransferProgressListener> listeners) {
  89         synchronized (mDataTransferListeners) {
  90             mDataTransferListeners.addAll(listeners);
  91         }
  92     }
  93
  94     @Override
  95     public void removeDatatransferProgressListener(OnDatatransferProgressListener listener) {
  96         synchronized (mDataTransferListeners) {
  97             mDataTransferListeners.remove(listener);
  98         }
  99     }
 100
 101
 102     @Override
 103     public void writeRequest(final OutputStream out) throws IOException {
 104         //byte[] tmp = new byte[4096];
 105         ByteBuffer tmp = ByteBuffer.allocate(4096);
 106         int readResult = 0;
 107
 108         // TODO(bprzybylski): each mem allocation can throw OutOfMemoryError we need to handle it
 109         //                    globally in some fashionable manner
 110         RandomAccessFile raf = new RandomAccessFile(mFile, "r");
 111         FileChannel channel = raf.getChannel();
 112         Iterator<OnDatatransferProgressListener> it = null;
 113         long transferred = 0;
 114         long size = mFile.length();
 115         if (size == 0) size = -1;
 116         try {
 117             while ((readResult = channel.read(tmp)) >= 0) {
 118                 out.write(tmp.array(), 0, readResult);
 119                 tmp.clear();
 120                 transferred += readResult;
 121                 synchronized (mDataTransferListeners) {
 122                     it = mDataTransferListeners.iterator();
 123                     while (it.hasNext()) {
 124                         it.next().onTransferProgress(readResult, transferred, size, mFile.getAbsolutePath());
 125                     }
 126                 }
 127             }
 128
 129         } catch (IOException io) {
 130             Log.e("FileRequestException", io.getMessage());
 131             throw new RuntimeException("Ugly solution to workaround the default policy of retries when the server falls while uploading ; temporal fix; really", io);
 132
 133         } finally {
 134             channel.close();
 135             raf.close();
 136         }
 137     }
 138
 139 }