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.Vector;
  23
  24 import org.apache.jackrabbit.webdav.DavException;
  25 import org.apache.jackrabbit.webdav.MultiStatus;
  26 import org.apache.jackrabbit.webdav.client.methods.PropFindMethod;
  27
  28 import android.accounts.Account;
  29 import android.accounts.AuthenticatorException;
  30 import android.accounts.OperationCanceledException;
  31 import android.content.ContentProviderClient;
  32 import android.content.Context;
  33 import android.content.Intent;
  34 import android.content.SyncResult;
  35 import android.os.Bundle;
  36 import android.util.Log;
  37 import eu.alefzero.owncloud.datamodel.FileDataStorageManager;
  38 import eu.alefzero.owncloud.datamodel.OCFile;
  39 import eu.alefzero.webdav.WebdavEntry;
  40
  41 /**
  42  * SyncAdapter implementation for syncing sample SyncAdapter contacts to the
  43  * platform ContactOperations provider.
  44  *
  45  * @author Bartek Przybylski
  46  */
  47 public class FileSyncAdapter extends AbstractOwnCloudSyncAdapter {
  48
  49     private final static String TAG = "FileSyncAdapter";
  50
  51     private long mCurrentSyncTime;
  52
  53     public FileSyncAdapter(Context context, boolean autoInitialize) {
  54         super(context, autoInitialize);
  55     }
  56
  57     @Override
  58     public synchronized void onPerformSync(Account account, Bundle extras,
  59             String authority, ContentProviderClient provider,
  60             SyncResult syncResult) {
  61
  62         this.setAccount(account);
  63         this.setContentProvider(provider);
  64         this.setStorageManager(new FileDataStorageManager(account,
  65                 getContentProvider()));
  66
  67         Log.d(TAG, "syncing owncloud account " + account.name);
  68
  69         sendStickyBroadcast(true, null);  // message to signal the start to the UI
  70
  71         PropFindMethod query;
  72         try {
  73             mCurrentSyncTime = System.currentTimeMillis();
  74             query = new PropFindMethod(getUri().toString() + "/");
  75             getClient().executeMethod(query);
  76             MultiStatus resp = null;
  77             resp = query.getResponseBodyAsMultiStatus();
  78
  79             if (resp.getResponses().length > 0) {
  80                 WebdavEntry we = new WebdavEntry(resp.getResponses()[0], getUri().getPath());
  81                 OCFile file = fillOCFile(we);
  82                 file.setParentId(0);
  83                 getStorageManager().saveFile(file);
  84                 fetchData(getUri().toString(), syncResult, file.getFileId(), account);
  85             }
  86         } catch (OperationCanceledException e) {
  87             e.printStackTrace();
  88         } catch (AuthenticatorException e) {
  89             syncResult.stats.numAuthExceptions++;
  90             e.printStackTrace();
  91         } catch (IOException e) {
  92             syncResult.stats.numIoExceptions++;
  93             e.printStackTrace();
  94         } catch (DavException e) {
  95             syncResult.stats.numIoExceptions++;
  96             e.printStackTrace();
  97         } catch (Throwable t) {
  98             // TODO update syncResult
  99             Log.e(TAG, "problem while synchronizing owncloud account " + account.name, t);
 100             t.printStackTrace();
 101         }
 102         sendStickyBroadcast(false, null);
 103     }
 104
 105     private void fetchData(String uri, SyncResult syncResult, long parentId, Account account) {
 106         try {
 107             Log.v(TAG, "syncing: fetching " + uri);
 108
 109             // remote request
 110             PropFindMethod query = new PropFindMethod(uri);
 111             getClient().executeMethod(query);
 112             MultiStatus resp = null;
 113
 114             resp = query.getResponseBodyAsMultiStatus();
 115
 116             // insertion of updated files
 117             for (int i = 1; i < resp.getResponses().length; ++i) {
 118                 WebdavEntry we = new WebdavEntry(resp.getResponses()[i], getUri().getPath());
 119                 OCFile file = fillOCFile(we);
 120                 file.setParentId(parentId);
 121                 getStorageManager().saveFile(file);
 122                 if (parentId == 0)
 123                     parentId = file.getFileId();
 124             }
 125
 126             // removal of old files
 127             Vector<OCFile> files = getStorageManager().getDirectoryContent(
 128                     getStorageManager().getFileById(parentId));
 129             OCFile file;
 130             for (int i=0; i < files.size(); ) {
 131                 file = files.get(i);
 132                 if (file.getLastSyncDate() != mCurrentSyncTime && file.getLastSyncDate() != 0) {
 133                     getStorageManager().removeFile(file);
 134                     files.remove(i);
 135                 } else {
 136                     i++;
 137                 }
 138             }
 139
 140             // synchronized folder -> notice to UI
 141             sendStickyBroadcast(true, getStorageManager().getFileById(parentId).getRemotePath());
 142
 143             // recursive fetch
 144             for (OCFile newFile : files) {
 145                 if (newFile.getMimetype().equals("DIR")) {
 146                     fetchData(getUri().toString() + newFile.getRemotePath(), syncResult, newFile.getFileId(), account);
 147                 }
 148             }
 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         } catch (Throwable t) {
 163             // TODO update syncResult
 164             Log.e(TAG, "problem while synchronizing owncloud account " + account.name, t);
 165             t.printStackTrace();
 166         }
 167     }
 168
 169     private OCFile fillOCFile(WebdavEntry we) {
 170         OCFile file = new OCFile(we.path());
 171         file.setCreationTimestamp(we.createTimestamp());
 172         file.setFileLength(we.contentLength());
 173         file.setMimetype(we.contentType());
 174         file.setModificationTimestamp(we.modifiedTimesamp());
 175         file.setLastSyncDate(mCurrentSyncTime);
 176         return file;
 177     }
 178
 179
 180     private void sendStickyBroadcast(boolean inProgress, String dirRemotePath) {
 181         Intent i = new Intent(FileSyncService.SYNC_MESSAGE);
 182         i.putExtra(FileSyncService.IN_PROGRESS, inProgress);
 183         i.putExtra(FileSyncService.ACCOUNT_NAME, getAccount().name);
 184         if (dirRemotePath != null) {
 185             i.putExtra(FileSyncService.SYNC_FOLDER_REMOTE_PATH, dirRemotePath);
 186         }
 187         getContext().sendStickyBroadcast(i);
 188     }
 189
 190 }