src/com/owncloud/android/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 com.owncloud.android.syncadapter;
  20
  21 import java.io.IOException;
  22 import java.util.List;
  23 import java.util.Vector;
  24
  25 import org.apache.jackrabbit.webdav.DavException;
  26 import org.apache.jackrabbit.webdav.MultiStatus;
  27 import org.apache.jackrabbit.webdav.client.methods.PropFindMethod;
  28
  29 import com.owncloud.android.datamodel.FileDataStorageManager;
  30 import com.owncloud.android.datamodel.OCFile;
  31 import com.owncloud.android.files.services.FileDownloader;
  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 eu.alefzero.webdav.WebdavEntry;
  43 import eu.alefzero.webdav.WebdavUtils;
  44
  45 /**
  46  * SyncAdapter implementation for syncing sample SyncAdapter contacts to the
  47  * platform ContactOperations provider.
  48  *
  49  * @author Bartek Przybylski
  50  */
  51 public class FileSyncAdapter extends AbstractOwnCloudSyncAdapter {
  52
  53     private final static String TAG = "FileSyncAdapter";
  54
  55     /*  Commented code for ugly performance tests
  56     private final static int MAX_DELAYS = 100;
  57     private static long[] mResponseDelays = new long[MAX_DELAYS];
  58     private static long[] mSaveDelays = new long[MAX_DELAYS];
  59     private int mDelaysIndex = 0;
  60     private int mDelaysCount = 0;
  61     */
  62
  63     private long mCurrentSyncTime;
  64     private boolean mCancellation;
  65     private Account mAccount;
  66
  67     public FileSyncAdapter(Context context, boolean autoInitialize) {
  68         super(context, autoInitialize);
  69     }
  70
  71     @Override
  72     public synchronized void onPerformSync(Account account, Bundle extras,
  73             String authority, ContentProviderClient provider,
  74             SyncResult syncResult) {
  75
  76         mCancellation = false;
  77         mAccount = account;
  78
  79         this.setAccount(mAccount);
  80         this.setContentProvider(provider);
  81         this.setStorageManager(new FileDataStorageManager(mAccount,
  82                 getContentProvider()));
  83
  84         /*  Commented code for ugly performance tests
  85         mDelaysIndex = 0;
  86         mDelaysCount = 0;
  87         */
  88
  89
  90         Log.d(TAG, "syncing owncloud account " + mAccount.name);
  91
  92         sendStickyBroadcast(true, null);  // message to signal the start to the UI
  93
  94         PropFindMethod query = null;
  95         try {
  96             mCurrentSyncTime = System.currentTimeMillis();
  97             query = new PropFindMethod(getUri().toString() + "/");
  98             getClient().executeMethod(query);
  99             MultiStatus resp = null;
 100             resp = query.getResponseBodyAsMultiStatus();
 101
 102             if (resp.getResponses().length > 0) {
 103                 WebdavEntry we = new WebdavEntry(resp.getResponses()[0], getUri().getPath());
 104                 OCFile file = fillOCFile(we);
 105                 file.setParentId(0);
 106                 getStorageManager().saveFile(file);
 107                 if (!mCancellation) {
 108                     fetchData(getUri().toString(), syncResult, file.getFileId());
 109                 }
 110             }
 111         } catch (OperationCanceledException e) {
 112             e.printStackTrace();
 113         } catch (AuthenticatorException e) {
 114             syncResult.stats.numAuthExceptions++;
 115             e.printStackTrace();
 116         } catch (IOException e) {
 117             syncResult.stats.numIoExceptions++;
 118             e.printStackTrace();
 119         } catch (DavException e) {
 120             syncResult.stats.numIoExceptions++;
 121             e.printStackTrace();
 122         } catch (Throwable t) {
 123             // TODO update syncResult
 124             Log.e(TAG, "problem while synchronizing owncloud account " + account.name, t);
 125             t.printStackTrace();
 126
 127         } finally {
 128             if (query != null)
 129                 query.releaseConnection();  // let the connection available for other methods
 130         }
 131
 132         /*  Commented code for ugly performance tests
 133         long sum = 0, mean = 0, max = 0, min = Long.MAX_VALUE;
 134         for (int i=0; i<MAX_DELAYS && i<mDelaysCount; i++) {
 135             sum += mResponseDelays[i];
 136             max = Math.max(max, mResponseDelays[i]);
 137             min = Math.min(min, mResponseDelays[i]);
 138         }
 139         mean = sum / mDelaysCount;
 140         Log.e(TAG, "SYNC STATS - response: mean time = " + mean + " ; max time = " + max + " ; min time = " + min);
 141
 142         sum = 0; max = 0; min = Long.MAX_VALUE;
 143         for (int i=0; i<MAX_DELAYS && i<mDelaysCount; i++) {
 144             sum += mSaveDelays[i];
 145             max = Math.max(max, mSaveDelays[i]);
 146             min = Math.min(min, mSaveDelays[i]);
 147         }
 148         mean = sum / mDelaysCount;
 149         Log.e(TAG, "SYNC STATS - save:     mean time = " + mean + " ; max time = " + max + " ; min time = " + min);
 150         Log.e(TAG, "SYNC STATS - folders measured: " + mDelaysCount);
 151         */
 152
 153         sendStickyBroadcast(false, null);
 154     }
 155
 156     private void fetchData(String uri, SyncResult syncResult, long parentId) {
 157         PropFindMethod query = null;
 158         try {
 159             Log.d(TAG, "fetching " + uri);
 160
 161             // remote request
 162             query = new PropFindMethod(uri);
 163             /*  Commented code for ugly performance tests
 164             long responseDelay = System.currentTimeMillis();
 165             */
 166             getClient().executeMethod(query);
 167             /*  Commented code for ugly performance tests
 168             responseDelay = System.currentTimeMillis() - responseDelay;
 169             Log.e(TAG, "syncing: RESPONSE TIME for " + uri + " contents, " + responseDelay + "ms");
 170             */
 171             MultiStatus resp = null;
 172             resp = query.getResponseBodyAsMultiStatus();
 173
 174             // insertion or update of files
 175             List<OCFile> updatedFiles = new Vector<OCFile>(resp.getResponses().length - 1);
 176             for (int i = 1; i < resp.getResponses().length; ++i) {
 177                 WebdavEntry we = new WebdavEntry(resp.getResponses()[i], getUri().getPath());
 178                 OCFile file = fillOCFile(we);
 179                 file.setParentId(parentId);
 180                 if (getStorageManager().getFileByPath(file.getRemotePath()) != null &&
 181                     getStorageManager().getFileByPath(file.getRemotePath()).keepInSync() &&
 182                     file.getModificationTimestamp() > getStorageManager().getFileByPath(file.getRemotePath())
 183                                                                          .getModificationTimestamp()) {
 184                     Intent intent = new Intent(this.getContext(), FileDownloader.class);
 185                     intent.putExtra(FileDownloader.EXTRA_ACCOUNT, getAccount());
 186                     intent.putExtra(FileDownloader.EXTRA_FILE_PATH, file.getRemotePath());
 187                     intent.putExtra(FileDownloader.EXTRA_REMOTE_PATH, file.getRemotePath());
 188                     intent.putExtra(FileDownloader.EXTRA_FILE_SIZE, file.getFileLength());
 189                     file.setKeepInSync(true);
 190                     getContext().startService(intent);
 191                 }
 192                 if (getStorageManager().getFileByPath(file.getRemotePath()) != null)
 193                     file.setKeepInSync(getStorageManager().getFileByPath(file.getRemotePath()).keepInSync());
 194
 195                 //Log.v(TAG, "adding file: " + file);
 196                 updatedFiles.add(file);
 197                 if (parentId == 0)
 198                     parentId = file.getFileId();
 199             }
 200             /*  Commented code for ugly performance tests
 201             long saveDelay = System.currentTimeMillis();
 202             */
 203             getStorageManager().saveFiles(updatedFiles);    // all "at once" ; trying to get a best performance in database update
 204             /*  Commented code for ugly performance tests
 205             saveDelay = System.currentTimeMillis() - saveDelay;
 206             Log.e(TAG, "syncing: SAVE TIME for " + uri + " contents, " + mSaveDelays[mDelaysIndex] + "ms");
 207             */
 208
 209             // removal of obsolete files
 210             Vector<OCFile> files = getStorageManager().getDirectoryContent(
 211                     getStorageManager().getFileById(parentId));
 212             OCFile file;
 213             for (int i=0; i < files.size(); ) {
 214                 file = files.get(i);
 215                 if (file.getLastSyncDate() != mCurrentSyncTime) {
 216                     Log.v(TAG, "removing file: " + file);
 217                     getStorageManager().removeFile(file);
 218                     files.remove(i);
 219                 } else {
 220                     i++;
 221                 }
 222             }
 223
 224             // synchronized folder -> notice to UI
 225             sendStickyBroadcast(true, getStorageManager().getFileById(parentId).getRemotePath());
 226
 227             // recursive fetch
 228             for (int i=0; i < files.size() && !mCancellation; i++) {
 229                 OCFile newFile = files.get(i);
 230                 if (newFile.getMimetype().equals("DIR")) {
 231                     fetchData(getUri().toString() + WebdavUtils.encodePath(newFile.getRemotePath()), syncResult, newFile.getFileId());
 232                 }
 233             }
 234             if (mCancellation) Log.d(TAG, "Leaving " + uri + " because cancelation request");
 235
 236             /*  Commented code for ugly performance tests
 237             mResponseDelays[mDelaysIndex] = responseDelay;
 238             mSaveDelays[mDelaysIndex] = saveDelay;
 239             mDelaysCount++;
 240             mDelaysIndex++;
 241             if (mDelaysIndex >= MAX_DELAYS)
 242                 mDelaysIndex = 0;
 243              */
 244
 245         } catch (OperationCanceledException e) {
 246             e.printStackTrace();
 247         } catch (AuthenticatorException e) {
 248             syncResult.stats.numAuthExceptions++;
 249             e.printStackTrace();
 250         } catch (IOException e) {
 251             syncResult.stats.numIoExceptions++;
 252             e.printStackTrace();
 253         } catch (DavException e) {
 254             syncResult.stats.numIoExceptions++;
 255             e.printStackTrace();
 256         } catch (Throwable t) {
 257             // TODO update syncResult
 258             Log.e(TAG, "problem while synchronizing owncloud account " + mAccount.name, t);
 259             t.printStackTrace();
 260
 261         } finally {
 262             if (query != null)
 263                 query.releaseConnection();  // let the connection available for other methods
 264         }
 265     }
 266
 267     private OCFile fillOCFile(WebdavEntry we) {
 268         OCFile file = new OCFile(we.decodedPath());
 269         file.setCreationTimestamp(we.createTimestamp());
 270         file.setFileLength(we.contentLength());
 271         file.setMimetype(we.contentType());
 272         file.setModificationTimestamp(we.modifiedTimesamp());
 273         file.setLastSyncDate(mCurrentSyncTime);
 274         return file;
 275     }
 276
 277
 278     private void sendStickyBroadcast(boolean inProgress, String dirRemotePath) {
 279         Intent i = new Intent(FileSyncService.SYNC_MESSAGE);
 280         i.putExtra(FileSyncService.IN_PROGRESS, inProgress);
 281         i.putExtra(FileSyncService.ACCOUNT_NAME, getAccount().name);
 282         if (dirRemotePath != null) {
 283             i.putExtra(FileSyncService.SYNC_FOLDER_REMOTE_PATH, dirRemotePath);
 284         }
 285         getContext().sendStickyBroadcast(i);
 286     }
 287
 288     /**
 289      * Called by system SyncManager when a synchronization is required to be cancelled.
 290      *
 291      * Sets the mCancellation flag to 'true'. THe synchronization will be stopped when before a new folder is fetched. Data of the last folder
 292      * fetched will be still saved in the database. See onPerformSync implementation.
 293      */
 294     @Override
 295     public void onSyncCanceled() {
 296         Log.d(TAG, "Synchronization of " + mAccount.name + " has been requested to cancell");
 297         mCancellation = true;
 298         super.onSyncCanceled();
 299     }
 300
 301 }