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.datamodel.FileDataStorageManager;
  25 import com.owncloud.android.datamodel.OCFile;
  26 import com.owncloud.android.network.OwnCloudClientUtils;
  27 import com.owncloud.android.operations.RemoteOperationResult;
  28 import com.owncloud.android.operations.SynchronizeFileOperation;
  29 import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
  30 import com.owncloud.android.ui.activity.ConflictsResolveActivity;
  31
  32 import eu.alefzero.webdav.WebdavClient;
  33
  34 import android.accounts.Account;
  35 import android.content.Context;
  36 import android.content.Intent;
  37 import android.os.FileObserver;
  38 import android.util.Log;
  39
  40 public class OwnCloudFileObserver extends FileObserver {
  41
  42     public static int CHANGES_ONLY = CLOSE_WRITE;
  43
  44     private static String TAG = OwnCloudFileObserver.class.getSimpleName();
  45
  46     private String mPath;
  47     private int mMask;
  48     private Account mOCAccount;
  49     //private OCFile mFile;
  50     private Context mContext;
  51
  52
  53     public OwnCloudFileObserver(String path, Account account, Context context, int mask) {
  54         super(path, mask);
  55         if (path == null)
  56             throw new IllegalArgumentException("NULL path argument received");
  57         /*if (file == null)
  58             throw new IllegalArgumentException("NULL file argument received");*/
  59         if (account == null)
  60             throw new IllegalArgumentException("NULL account argument received");
  61         if (context == null)
  62             throw new IllegalArgumentException("NULL context argument received");
  63         /*if (!path.equals(file.getStoragePath()) && !path.equals(FileStorageUtils.getDefaultSavePathFor(account.name, file)))
  64             throw new IllegalArgumentException("File argument is not linked to the local file set in path argument"); */
  65         mPath = path;
  66         //mFile = file;
  67         mOCAccount = account;
  68         mContext = context;
  69         mMask = mask;
  70     }
  71
  72     @Override
  73     public void onEvent(int event, String path) {
  74         Log.d(TAG, "Got file modified with event " + event + " and path " + mPath + ((path != null) ? File.separator + path : ""));
  75         if ((event & mMask) == 0) {
  76             Log.wtf(TAG, "Incorrect event " + event + " sent for file " + mPath + ((path != null) ? File.separator + path : "") +
  77                          " with registered for " + mMask + " and original path " +
  78                          mPath);
  79             return;
  80         }
  81         WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(mOCAccount, mContext);
  82         FileDataStorageManager storageManager = new FileDataStorageManager(mOCAccount, mContext.getContentResolver());
  83         OCFile file = storageManager.getFileByLocalPath(mPath);     // a fresh object is needed; many things could have occurred to the file since it was registered to observe
  84                                                                     // again, assuming that local files are linked to a remote file AT MOST, SOMETHING TO BE DONE;
  85         SynchronizeFileOperation sfo = new SynchronizeFileOperation(file,
  86                                                                     null,
  87                                                                     storageManager,
  88                                                                     mOCAccount,
  89                                                                     true,
  90                                                                     true,
  91                                                                     mContext);
  92         RemoteOperationResult result = sfo.execute(wc);
  93         if (result.getCode() == ResultCode.SYNC_CONFLICT) {
  94             // ISSUE 5: if the user is not running the app (this is a service!), this can be very intrusive; a notification should be preferred
  95             Intent i = new Intent(mContext, ConflictsResolveActivity.class);
  96             i.setFlags(i.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK);
  97             i.putExtra(ConflictsResolveActivity.EXTRA_FILE, file);
  98             i.putExtra(ConflictsResolveActivity.EXTRA_ACCOUNT, mOCAccount);
  99             mContext.startActivity(i);
 100         }
 101         // TODO save other errors in some point where the user can inspect them later;
 102         //      or maybe just toast them;
 103         //      or nothing, very strange fails
 104     }
 105
 106 }