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      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 com.android.messaging.util.Assert;
     19 
     20 /**
     21  * An implementation of {@link MediaCacheManager} that creates caches specific to Bugle's needs.
     22  *
     23  * To create a new type of cache, add to the list of cache ids and create a new MediaCache<>
     24  * for your cache id / media resource type in createMediaCacheById().
     25  */
     26 public class BugleMediaCacheManager extends MediaCacheManager {
     27     // List of available cache ids.
     28     public static final int DEFAULT_IMAGE_CACHE = 1;
     29     public static final int AVATAR_IMAGE_CACHE = 2;
     30     public static final int VCARD_CACHE = 3;
     31 
     32     // VCard cache size - we compute the size by count, not by bytes.
     33     private static final int VCARD_CACHE_SIZE = 5;
     34     private static final int SHARED_IMAGE_CACHE_SIZE = 1024 * 10;   // 10MB
     35 
     36     @Override
     37     protected MediaCache<?> createMediaCacheById(final int id) {
     38         switch (id) {
     39             case DEFAULT_IMAGE_CACHE:
     40                 return new PoolableImageCache(SHARED_IMAGE_CACHE_SIZE, id, "DefaultImageCache");
     41 
     42             case AVATAR_IMAGE_CACHE:
     43                 return new PoolableImageCache(id, "AvatarImageCache");
     44 
     45             case VCARD_CACHE:
     46                 return new MediaCache<VCardResource>(VCARD_CACHE_SIZE, id, "VCardCache");
     47 
     48             default:
     49                 Assert.fail("BugleMediaCacheManager: unsupported cache id " + id);
     50                 break;
     51         }
     52         return null;
     53     }
     54 }
     55