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