1 /*
2  * Copyright (C) 2010 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.gallery3d.data;
18 
19 import com.android.gallery3d.app.GalleryApp;
20 
21 class ComboSource extends MediaSource {
22     private static final int COMBO_ALBUMSET = 0;
23     private static final int COMBO_ALBUM = 1;
24     private GalleryApp mApplication;
25     private PathMatcher mMatcher;
26 
ComboSource(GalleryApp application)27     public ComboSource(GalleryApp application) {
28         super("combo");
29         mApplication = application;
30         mMatcher = new PathMatcher();
31         mMatcher.add("/combo/*", COMBO_ALBUMSET);
32         mMatcher.add("/combo/*/*", COMBO_ALBUM);
33     }
34 
35     // The only path we accept is "/combo/{set1, set2, ...} and /combo/item/{set1, set2, ...}"
36     @Override
createMediaObject(Path path)37     public MediaObject createMediaObject(Path path) {
38         String[] segments = path.split();
39         if (segments.length < 2) {
40             throw new RuntimeException("bad path: " + path);
41         }
42 
43         DataManager dataManager = mApplication.getDataManager();
44         switch (mMatcher.match(path)) {
45             case COMBO_ALBUMSET:
46                 return new ComboAlbumSet(path, mApplication,
47                         dataManager.getMediaSetsFromString(segments[1]));
48 
49             case COMBO_ALBUM:
50                 return new ComboAlbum(path,
51                         dataManager.getMediaSetsFromString(segments[2]), segments[1]);
52         }
53         return null;
54     }
55 }
56