src/com/owncloud/android/files/OwnCloudFileObserver.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012 Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License as published by
   7  *   the Free Software Foundation, either version 2 of the License, or
   8  *   (at your option) any later version.
   9  *
  10  *   This program is distributed in the hope that it will be useful,
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *   GNU General Public License for more details.
  14  *
  15  *   You should have received a copy of the GNU General Public License
  16  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 package com.owncloud.android.files;
  21
  22 import java.io.File;
  23
  24 import com.owncloud.android.Log_OC;
  25 import com.owncloud.android.datamodel.FileDataStorageManager;
  26 import com.owncloud.android.datamodel.OCFile;
  27 import com.owncloud.android.network.OwnCloudClientUtils;
  28 import com.owncloud.android.operations.RemoteOperationResult;
  29 import com.owncloud.android.operations.SynchronizeFileOperation;
  30 import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
  31 import com.owncloud.android.ui.activity.ConflictsResolveActivity;
  32
  33 import eu.alefzero.webdav.WebdavClient;
  34
  35 import android.accounts.Account;
  36 import android.content.Context;
  37 import android.content.Intent;
  38 import android.os.FileObserver;
  39 import android.util.Log;
  40
  41 public class OwnCloudFileObserver extends FileObserver {
  42
  43     public static int CHANGES_ONLY = CLOSE_WRITE;
  44
  45     private static String TAG = OwnCloudFileObserver.class.getSimpleName();
  46
  47     private String mPath;
  48     private int mMask;
  49     private Account mOCAccount;
  50     //private OCFile mFile;
  51     private Context mContext;
  52
  53
  54     public OwnCloudFileObserver(String path, Account account, Context context, int mask) {
  55         super(path, mask);
  56         if (path == null)
  57             throw new IllegalArgumentException("NULL path argument received");
  58         /*if (file == null)
  59             throw new IllegalArgumentException("NULL file argument received");*/
  60         if (account == null)
  61             throw new IllegalArgumentException("NULL account argument received");
  62         if (context == null)
  63             throw new IllegalArgumentException("NULL context argument received");
  64         /*if (!path.equals(file.getStoragePath()) && !path.equals(FileStorageUtils.getDefaultSavePathFor(account.name, file)))
  65             throw new IllegalArgumentException("File argument is not linked to the local file set in path argument"); */
  66         mPath = path;
  67         //mFile = file;
  68         mOCAccount = account;
  69         mContext = context;
  70         mMask = mask;
  71     }
  72
  73     @Override
  74     public void onEvent(int event, String path) {
  75         Log_OC.d(TAG, "Got file modified with event " + event + " and path " + mPath + ((path != null) ? File.separator + path : ""));
  76         if ((event & mMask) == 0) {
  77             Log_OC.wtf(TAG, "Incorrect event " + event + " sent for file " + mPath + ((path != null) ? File.separator + path : "") +
  78                          " with registered for " + mMask + " and original path " +
  79                          mPath);
  80             return;
  81         }
  82         WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(mOCAccount, mContext);
  83         FileDataStorageManager storageManager = new FileDataStorageManager(mOCAccount, mContext.getContentResolver());
  84         OCFile file = storageManager.getFileByLocalPath(mPath);     // a fresh object is needed; many things could have occurred to the file since it was registered to observe
  85                                                                     // again, assuming that local files are linked to a remote file AT MOST, SOMETHING TO BE DONE;
  86         SynchronizeFileOperation sfo = new SynchronizeFileOperation(file,
  87                                                                     null,
  88                                                                     storageManager,
  89                                                                     mOCAccount,
  90                                                                     true,
  91                                                                     true,
  92                                                                     mContext);
  93         RemoteOperationResult result = sfo.execute(wc);
  94         if (result.getCode() == ResultCode.SYNC_CONFLICT) {
  95             // ISSUE 5: if the user is not running the app (this is a service!), this can be very intrusive; a notification should be preferred
  96             Intent i = new Intent(mContext, ConflictsResolveActivity.class);
  97             i.setFlags(i.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK);
  98             i.putExtra(ConflictsResolveActivity.EXTRA_FILE, file);
  99             i.putExtra(ConflictsResolveActivity.EXTRA_ACCOUNT, mOCAccount);
 100             mContext.startActivity(i);
 101         }
 102         // TODO save other errors in some point where the user can inspect them later;
 103         //      or maybe just toast them;
 104         //      or nothing, very strange fails
 105     }
 106
 107 }