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