1 /*
2  * Copyright (C) 2015 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 package com.android.messaging.datamodel.media;
17 
18 import java.util.List;
19 
20 /**
21  * Holds cached information of VCard contact info.
22  * The temporarily persisted avatar icon Uri is tied to the VCardResource. As a result, whenever
23  * the VCardResource is no longer used (i.e. close() is called), we need to asynchronously
24  * delete the avatar image from temp storage since no one will have reference to the avatar Uri
25  * again. The next time the same VCard is displayed, since the old resource has been evicted from
26  * the memory cache, we'll load and persist the avatar icon again.
27  */
28 public class VCardResource extends RefCountedMediaResource {
29     private final List<VCardResourceEntry> mVCards;
30 
VCardResource(final String key, final List<VCardResourceEntry> vcards)31     public VCardResource(final String key, final List<VCardResourceEntry> vcards) {
32         super(key);
33         mVCards = vcards;
34     }
35 
getVCards()36     public List<VCardResourceEntry> getVCards() {
37         return mVCards;
38     }
39 
40     @Override
getMediaSize()41     public int getMediaSize() {
42         // Instead of track VCards by size in kilobytes, we track them by count.
43         return 0;
44     }
45 
46     @Override
close()47     protected void close() {
48         for (final VCardResourceEntry vcard : mVCards) {
49             vcard.close();
50         }
51     }
52 }
53