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.util.LinkedList;
  22 import java.util.List;
  23
  24 import com.owncloud.android.datamodel.DataStorageManager;
  25 import com.owncloud.android.datamodel.OCFile;
  26 import com.owncloud.android.files.OwnCloudFileObserver.FileObserverStatusListener.Status;
  27 import com.owncloud.android.files.services.FileUploader;
  28 import com.owncloud.android.network.OwnCloudClientUtils;
  29 import com.owncloud.android.operations.RemoteOperationResult;
  30 import com.owncloud.android.operations.SynchronizeFileOperation;
  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";
  45     private String mPath;
  46     private int mMask;
  47     DataStorageManager mStorage;
  48     Account mOCAccount;
  49     OCFile mFile;
  50     static Context mContext;    // ISSUE 4: why is this static?
  51     List<FileObserverStatusListener> mListeners;
  52
  53     public OwnCloudFileObserver(String path) {
  54         this(path, ALL_EVENTS);
  55     }
  56
  57     public OwnCloudFileObserver(String path, int mask) {
  58         super(path, mask);
  59         mPath = path;
  60         mMask = mask;
  61         mListeners = new LinkedList<FileObserverStatusListener>();
  62     }
  63
  64     public void setAccount(Account account) {
  65         mOCAccount = account;
  66     }
  67
  68     public void setStorageManager(DataStorageManager manager) {
  69         mStorage = manager;
  70     }
  71
  72     public void setOCFile(OCFile file) {
  73         mFile = file;
  74     }
  75
  76     public void setContext(Context context) {
  77         mContext = context;
  78     }
  79
  80     public String getPath() {
  81         return mPath;
  82     }
  83
  84     public String getRemotePath() {
  85         return mFile.getRemotePath();
  86     }
  87
  88     public void addObserverStatusListener(FileObserverStatusListener listener) {
  89         mListeners.add(listener);
  90     }
  91
  92     @Override
  93     public void onEvent(int event, String path) {
  94         Log.d(TAG, "Got file modified with event " + event + " and path " + path);
  95         if ((event & mMask) == 0) {
  96             Log.wtf(TAG, "Incorrect event " + event + " sent for file " + path +
  97                          " with registered for " + mMask + " and original path " +
  98                          mPath);
  99             for (FileObserverStatusListener l : mListeners)
 100                 l.OnObservedFileStatusUpdate(mPath, getRemotePath(), mOCAccount, Status.INCORRECT_MASK);
 101             return;
 102         }
 103         WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(mOCAccount, mContext);
 104         SynchronizeFileOperation sfo = new SynchronizeFileOperation(mFile.getRemotePath(), mStorage, mOCAccount, mContext);
 105         RemoteOperationResult result = sfo.execute(wc);
 106
 107         if (result.getExtraData() == Boolean.TRUE) {
 108             // inform user about conflict and let him decide what to do
 109             for (FileObserverStatusListener l : mListeners)
 110                 l.OnObservedFileStatusUpdate(mPath, getRemotePath(), mOCAccount, Status.CONFLICT);
 111             return;
 112         }
 113
 114         for (FileObserverStatusListener l : mListeners)
 115             l.OnObservedFileStatusUpdate(mPath, getRemotePath(), mOCAccount, Status.SENDING_TO_UPLOADER);
 116
 117         Intent i = new Intent(mContext, FileUploader.class);
 118         i.putExtra(FileUploader.KEY_ACCOUNT, mOCAccount);
 119         i.putExtra(FileUploader.KEY_REMOTE_FILE, mFile.getRemotePath());
 120         i.putExtra(FileUploader.KEY_LOCAL_FILE, mPath);
 121         i.putExtra(FileUploader.KEY_UPLOAD_TYPE, FileUploader.UPLOAD_SINGLE_FILE);
 122         i.putExtra(FileUploader.KEY_FORCE_OVERWRITE, true);
 123         mContext.startService(i);
 124     }
 125
 126     public interface FileObserverStatusListener {
 127         public enum Status {
 128             SENDING_TO_UPLOADER,
 129             CONFLICT,
 130             INCORRECT_MASK
 131         }
 132
 133         public void OnObservedFileStatusUpdate(String localPath,
 134                                                String remotePath,
 135                                                Account account,
 136                                                FileObserverStatusListener.Status status);
 137     }
 138
 139 }