src/com/owncloud/android/operations/ChunkedUploadFileOperation.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012 Bartek Przybylski
   3  *
   4  *   This program is free software: you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License as published by
   6  *   the Free Software Foundation, either version 3 of the License, or
   7  *   (at your option) any later version.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.operations;
  20
  21 import java.io.File;
  22 import java.io.IOException;
  23 import java.io.RandomAccessFile;
  24 import java.nio.channels.FileChannel;
  25 import java.util.Random;
  26
  27 import org.apache.commons.httpclient.HttpException;
  28 import org.apache.commons.httpclient.methods.PutMethod;
  29
  30 import com.owncloud.android.datamodel.OCFile;
  31
  32 import android.accounts.Account;
  33 import android.util.Log;
  34
  35 import eu.alefzero.webdav.ChunkFromFileChannelRequestEntity;
  36 import eu.alefzero.webdav.WebdavClient;
  37 import eu.alefzero.webdav.WebdavUtils;
  38
  39 public class ChunkedUploadFileOperation extends UploadFileOperation {
  40
  41     private static final long CHUNK_SIZE = 1024000;
  42     private static final String OC_CHUNKED_HEADER = "OC-Chunked";
  43     private static final String TAG = ChunkedUploadFileOperation.class.getSimpleName();
  44
  45     public ChunkedUploadFileOperation(  Account account,
  46                                         OCFile file,
  47                                         boolean isInstant,
  48                                         boolean forceOverwrite) {
  49
  50         super(account, file, isInstant, forceOverwrite);
  51     }
  52
  53     @Override
  54     protected int uploadFile(WebdavClient client) throws HttpException, IOException {
  55         int status = -1;
  56
  57         FileChannel channel = null;
  58         RandomAccessFile raf = null;
  59         try {
  60             File file = new File(getStoragePath());
  61             raf = new RandomAccessFile(file, "r");
  62             channel = raf.getChannel();
  63             ChunkFromFileChannelRequestEntity entity = new ChunkFromFileChannelRequestEntity(channel, getMimeType(), CHUNK_SIZE, file);
  64             entity.addOnDatatransferProgressListeners(getDataTransferListeners());
  65             long offset = 0;
  66             String uriPrefix = client.getBaseUri() + WebdavUtils.encodePath(getRemotePath()) + "-chunking-" + Math.abs((new Random()).nextInt(9000)+1000) + "-" ;
  67             long chunkCount = (long) Math.ceil((double)file.length() / CHUNK_SIZE);
  68             for (int chunkIndex = 0; chunkIndex < chunkCount ; chunkIndex++, offset += CHUNK_SIZE) {
  69                 mPutMethod = new PutMethod(uriPrefix + chunkCount + "-" + chunkIndex);
  70                 mPutMethod.addRequestHeader(OC_CHUNKED_HEADER, OC_CHUNKED_HEADER);
  71                 entity.setOffset(offset);
  72                 mPutMethod.setRequestEntity(entity);
  73                 status = client.executeMethod(mPutMethod);
  74                 client.exhaustResponse(mPutMethod.getResponseBodyAsStream());
  75                 Log.d(TAG, "Upload of " + getStoragePath() + " to " + getRemotePath() + ", chunk index " + chunkIndex + ", count " + chunkCount + ", HTTP result status " + status);
  76                 if (!isSuccess(status))
  77                     break;
  78             }
  79
  80         } finally {
  81             if (channel != null)
  82                 channel.close();
  83             if (raf != null)
  84                 raf.close();
  85             if (mPutMethod != null)
  86                 mPutMethod.releaseConnection();    // let the connection available for other methods
  87         }
  88         return status;
  89     }
  90
  91 }