src/eu/alefzero/owncloud/syncadapter/FileSyncAdapter.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  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 eu.alefzero.owncloud.syncadapter;
  20
  21 import java.io.IOException;
  22 import java.util.ArrayList;
  23 import java.util.Iterator;
  24 import java.util.LinkedList;
  25 import java.util.List;
  26 import java.util.Queue;
  27 import java.util.Vector;
  28
  29 import org.apache.jackrabbit.webdav.DavException;
  30 import org.apache.jackrabbit.webdav.MultiStatus;
  31 import org.apache.jackrabbit.webdav.client.methods.PropFindMethod;
  32
  33 import android.accounts.Account;
  34 import android.accounts.AuthenticatorException;
  35 import android.accounts.OperationCanceledException;
  36 import android.content.ContentProviderClient;
  37 import android.content.Context;
  38 import android.content.Intent;
  39 import android.content.SyncResult;
  40 import android.os.Bundle;
  41 import android.util.Log;
  42 import android.webkit.MimeTypeMap;
  43 import eu.alefzero.owncloud.datamodel.FileDataStorageManager;
  44 import eu.alefzero.owncloud.datamodel.OCFile;
  45 import eu.alefzero.webdav.WebdavEntry;
  46
  47 /**
  48  * SyncAdapter implementation for syncing sample SyncAdapter contacts to the
  49  * platform ContactOperations provider.
  50  *
  51  * @author Bartek Przybylski
  52  */
  53 public class FileSyncAdapter extends AbstractOwnCloudSyncAdapter {
  54
  55     private final static String TAG = "FileSyncAdapter";
  56
  57     private long mCurrentSyncTime;
  58
  59     public FileSyncAdapter(Context context, boolean autoInitialize) {
  60         super(context, autoInitialize);
  61     }
  62
  63     @Override
  64     public synchronized void onPerformSync(Account account, Bundle extras,
  65             String authority, ContentProviderClient provider,
  66             SyncResult syncResult) {
  67
  68         this.setAccount(account);
  69         this.setContentProvider(provider);
  70         this.setStorageManager(new FileDataStorageManager(account,
  71                 getContentProvider()));
  72
  73         Log.d(TAG, "syncing owncloud account " + account.name);
  74
  75         sendStickyBroadcast(true, -1);  // message to signal the start to the UI
  76
  77         PropFindMethod query;
  78         try {
  79             mCurrentSyncTime = System.currentTimeMillis();
  80             query = new PropFindMethod(getUri().toString() + "/");
  81             getClient().executeMethod(query);
  82             MultiStatus resp = null;
  83             resp = query.getResponseBodyAsMultiStatus();
  84
  85             if (resp.getResponses().length > 0) {
  86                 WebdavEntry we = new WebdavEntry(resp.getResponses()[0], getUri().getPath());
  87                 OCFile file = fillOCFile(we);
  88                 file.setParentId(0);
  89                 getStorageManager().saveFile(file);
  90                 fetchData(getUri().toString(), syncResult, file.getFileId());
  91             }
  92         } catch (OperationCanceledException e) {
  93             e.printStackTrace();
  94         } catch (AuthenticatorException e) {
  95             syncResult.stats.numAuthExceptions++;
  96             e.printStackTrace();
  97         } catch (IOException e) {
  98             syncResult.stats.numIoExceptions++;
  99             e.printStackTrace();
 100         } catch (DavException e) {
 101             syncResult.stats.numIoExceptions++;
 102             e.printStackTrace();
 103         } catch (Throwable t) {
 104             //TODO count ; any type of exception should be treated, and the progress indicator finished;
 105             //             reporting the user about bad synchronizations should be discussed
 106             t.printStackTrace();
 107         }
 108         sendStickyBroadcast(false, -1);
 109     }
 110
 111     private void fetchData(String uri, SyncResult syncResult, long parentId) {
 112         try {
 113             PropFindMethod query = new PropFindMethod(uri);
 114             getClient().executeMethod(query);
 115             MultiStatus resp = null;
 116             resp = query.getResponseBodyAsMultiStatus();
 117             Queue<String> paths = new LinkedList<String>();
 118             Queue<Long> fileIds = new LinkedList<Long>();
 119             for (int i = 1; i < resp.getResponses().length; ++i) {
 120                 WebdavEntry we = new WebdavEntry(resp.getResponses()[i], getUri().getPath());
 121                 OCFile file = fillOCFile(we);
 122                 file.setParentId(parentId);
 123                 getStorageManager().saveFile(file);
 124                 if (parentId == 0)
 125                     parentId = file.getFileId();
 126                 if (we.contentType().equals("DIR")) {
 127                     // for recursive fetch later
 128                     paths.add(we.path());
 129                     fileIds.add(file.getFileId());
 130                 }
 131             }
 132
 133             Vector<OCFile> files = getStorageManager().getDirectoryContent(
 134                     getStorageManager().getFileById(parentId));
 135             for (OCFile file : files) {
 136                 if (file.getLastSyncDate() != mCurrentSyncTime && file.getLastSyncDate() != 0)
 137                     getStorageManager().removeFile(file);
 138             }
 139
 140             // synched folder -> notice to IU
 141             sendStickyBroadcast(true, parentId);
 142
 143             // recursive fetch
 144             while(!paths.isEmpty()) {
 145                 fetchData(getUri().toString() + paths.remove(), syncResult, fileIds.remove());
 146             }
 147             paths = null;
 148             fileIds = null;
 149
 150
 151         } catch (OperationCanceledException e) {
 152             e.printStackTrace();
 153         } catch (AuthenticatorException e) {
 154             syncResult.stats.numAuthExceptions++;
 155             e.printStackTrace();
 156         } catch (IOException e) {
 157             syncResult.stats.numIoExceptions++;
 158             e.printStackTrace();
 159         } catch (DavException e) {
 160             syncResult.stats.numIoExceptions++;
 161             e.printStackTrace();
 162         }
 163     }
 164
 165     private OCFile fillOCFile(WebdavEntry we) {
 166         OCFile file = new OCFile(we.path());
 167         file.setCreationTimestamp(we.createTimestamp());
 168         file.setFileLength(we.contentLength());
 169         file.setMimetype(we.contentType());
 170         file.setModificationTimestamp(we.modifiedTimesamp());
 171         file.setLastSyncDate(mCurrentSyncTime);
 172         return file;
 173     }
 174
 175
 176     private void sendStickyBroadcast(boolean inProgress, long OCDirId) {
 177         Intent i = new Intent(FileSyncService.SYNC_MESSAGE);
 178         i.putExtra(FileSyncService.IN_PROGRESS, inProgress);
 179         i.putExtra(FileSyncService.ACCOUNT_NAME, getAccount().name);
 180         if (OCDirId > 0) {
 181             i.putExtra(FileSyncService.SYNC_FOLDER, OCDirId);
 182         }
 183         getContext().sendStickyBroadcast(i);
 184     }
 185
 186 }