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