| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.messaging.datamodel.media; |
| |
| import android.util.SparseArray; |
| |
| import com.android.messaging.Factory; |
| import com.android.messaging.datamodel.MemoryCacheManager; |
| import com.android.messaging.datamodel.MemoryCacheManager.MemoryCache; |
| import com.android.messaging.datamodel.media.PoolableImageCache.ReusableImageResourcePool; |
| |
| /** |
| * Manages a set of media caches by id. |
| */ |
| public abstract class MediaCacheManager implements MemoryCache { |
| public static MediaCacheManager get() { |
| return Factory.get().getMediaCacheManager(); |
| } |
| |
| protected final SparseArray<MediaCache<?>> mCaches; |
| |
| public MediaCacheManager() { |
| mCaches = new SparseArray<MediaCache<?>>(); |
| MemoryCacheManager.get().registerMemoryCache(this); |
| } |
| |
| @Override |
| public void reclaim() { |
| final int count = mCaches.size(); |
| for (int i = 0; i < count; i++) { |
| mCaches.valueAt(i).destroy(); |
| } |
| mCaches.clear(); |
| } |
| |
| public synchronized MediaCache<?> getOrCreateMediaCacheById(final int id) { |
| MediaCache<?> cache = mCaches.get(id); |
| if (cache == null) { |
| cache = createMediaCacheById(id); |
| if (cache != null) { |
| mCaches.put(id, cache); |
| } |
| } |
| return cache; |
| } |
| |
| public ReusableImageResourcePool getOrCreateBitmapPoolForCache(final int cacheId) { |
| final MediaCache<?> cache = getOrCreateMediaCacheById(cacheId); |
| if (cache != null && cache instanceof PoolableImageCache) { |
| return ((PoolableImageCache) cache).asReusableBitmapPool(); |
| } |
| return null; |
| } |
| |
| protected abstract MediaCache<?> createMediaCacheById(final int id); |
| } |