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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012 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.files;
  20
  21 import java.io.File;
  22
  23 import com.owncloud.android.datamodel.FileDataStorageManager;
  24 import com.owncloud.android.datamodel.OCFile;
  25 import com.owncloud.android.network.OwnCloudClientUtils;
  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 import eu.alefzero.webdav.WebdavClient;
  32
  33 import android.accounts.Account;
  34 import android.content.Context;
  35 import android.content.Intent;
  36 import android.os.FileObserver;
  37 import android.util.Log;
  38
  39 public class OwnCloudFileObserver extends FileObserver {
  40
  41     public static int CHANGES_ONLY = CLOSE_WRITE;
  42
  43     private static String TAG = OwnCloudFileObserver.class.getSimpleName();
  44
  45     private String mPath;
  46     private int mMask;
  47     private Account mOCAccount;
  48     //private OCFile mFile;
  49     private Context mContext;
  50
  51
  52     public OwnCloudFileObserver(String path, Account account, Context context, int mask) {
  53         super(path, mask);
  54         if (path == null)
  55             throw new IllegalArgumentException("NULL path argument received");
  56         /*if (file == null)
  57             throw new IllegalArgumentException("NULL file argument received");*/
  58         if (account == null)
  59             throw new IllegalArgumentException("NULL account argument received");
  60         if (context == null)
  61             throw new IllegalArgumentException("NULL context argument received");
  62         /*if (!path.equals(file.getStoragePath()) && !path.equals(FileStorageUtils.getDefaultSavePathFor(account.name, file)))
  63             throw new IllegalArgumentException("File argument is not linked to the local file set in path argument"); */
  64         mPath = path;
  65         //mFile = file;
  66         mOCAccount = account;
  67         mContext = context;
  68         mMask = mask;
  69     }
  70
  71     @Override
  72     public void onEvent(int event, String path) {
  73         Log.d(TAG, "Got file modified with event " + event + " and path " + mPath + ((path != null) ? File.separator + path : ""));
  74         if ((event & mMask) == 0) {
  75             Log.wtf(TAG, "Incorrect event " + event + " sent for file " + mPath + ((path != null) ? File.separator + path : "") +
  76                          " with registered for " + mMask + " and original path " +
  77                          mPath);
  78             return;
  79         }
  80         WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(mOCAccount, mContext);
  81         FileDataStorageManager storageManager = new FileDataStorageManager(mOCAccount, mContext.getContentResolver());
  82         OCFile file = storageManager.getFileByLocalPath(mPath);     // a fresh object is needed; many things could have occurred to the file since it was registered to observe
  83                                                                     // again, assuming that local files are linked to a remote file AT MOST, SOMETHING TO BE DONE;
  84         SynchronizeFileOperation sfo = new SynchronizeFileOperation(file,
  85                                                                     null,
  86                                                                     storageManager,
  87                                                                     mOCAccount,
  88                                                                     true,
  89                                                                     true,
  90                                                                     mContext);
  91         RemoteOperationResult result = sfo.execute(wc);
  92         if (result.getCode() == ResultCode.SYNC_CONFLICT) {
  93             // ISSUE 5: if the user is not running the app (this is a service!), this can be very intrusive; a notification should be preferred
  94             Intent i = new Intent(mContext, ConflictsResolveActivity.class);
  95             i.setFlags(i.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK);
  96             i.putExtra(ConflictsResolveActivity.EXTRA_FILE, file);
  97             i.putExtra(ConflictsResolveActivity.EXTRA_ACCOUNT, mOCAccount);
  98             mContext.startActivity(i);
  99         }
 100         // TODO save other errors in some point where the user can inspect them later;
 101         //      or maybe just toast them;
 102         //      or nothing, very strange fails
 103     }
 104
 105 }