/**
* Returns whether the image is stored in the disk cache.
*
* @param imageRequest the imageRequest for the image to be looked up.
* @return true if the image was found in the disk cache, false otherwise.
*/
public DataSource<Boolean> isInDiskCache(final ImageRequest imageRequest) {
final CacheKey cacheKey = mCacheKeyFactory.getEncodedCacheKey(imageRequest, null);
final SimpleDataSource<Boolean> dataSource = SimpleDataSource.create();
mMainBufferedDiskCache
.contains(cacheKey)
.continueWithTask(
new Continuation<Boolean, Task<Boolean>>() {
@Override
public Task<Boolean> then(Task<Boolean> task) throws Exception {
if (!task.isCancelled() && !task.isFaulted() && task.getResult()) {
return Task.forResult(true);
}
return mSmallImageBufferedDiskCache.contains(cacheKey);
}
})
.continueWith(
new Continuation<Boolean, Void>() {
@Override
public Void then(Task<Boolean> task) throws Exception {
dataSource.setResult(!task.isCancelled() && !task.isFaulted() && task.getResult());
return null;
}
});
return dataSource;
}
@Before
public void setUp() {
MockitoAnnotations.initMocks(this);
mEncodedMemoryCacheProducer =
new EncodedMemoryCacheProducer(mMemoryCache, mCacheKeyFactory, mNextProducer);
mCacheKey = new SimpleCacheKey("http://dummy.uri");
mPooledByteBuffer1 = mock(PooledByteBuffer.class);
mPooledByteBuffer2 = mock(PooledByteBuffer.class);
mFinalImageReference = CloseableReference.of(mPooledByteBuffer1);
mIntermediateImageReference = CloseableReference.of(mPooledByteBuffer2);
mFinalImageReferenceClone = mFinalImageReference.clone();
mFinalEncodedImage = new EncodedImage(mFinalImageReference);
mIntermediateEncodedImage = new EncodedImage(mIntermediateImageReference);
mFinalEncodedImageClone = new EncodedImage(mFinalImageReferenceClone);
when(mMemoryCache.cache(mCacheKey, mFinalImageReference)).thenReturn(mFinalImageReferenceClone);
when(mProducerContext.getImageRequest()).thenReturn(mImageRequest);
when(mProducerContext.getListener()).thenReturn(mProducerListener);
when(mProducerListener.requiresExtraMap(mRequestId)).thenReturn(true);
when(mProducerContext.getId()).thenReturn(mRequestId);
when(mProducerContext.getLowestPermittedRequestLevel())
.thenReturn(ImageRequest.RequestLevel.FULL_FETCH);
when(mCacheKeyFactory.getEncodedCacheKey(mImageRequest)).thenReturn(mCacheKey);
}
/**
* Performs disk cache check synchronously. It is not recommended to use this unless you know what
* exactly you are doing. Disk cache check is a costly operation, the call will block the caller
* thread until the cache check is completed.
*
* @param imageRequest the imageRequest for the image to be looked up.
* @return true if the image was found in the disk cache, false otherwise.
*/
public boolean isInDiskCacheSync(final ImageRequest imageRequest) {
final CacheKey cacheKey = mCacheKeyFactory.getEncodedCacheKey(imageRequest, null);
return mMainBufferedDiskCache.diskCheckSync(cacheKey);
}
/**
* Removes all images with the specified {@link Uri} from disk cache.
*
* @param imageRequest The imageRequest for the image to evict from disk cache
*/
public void evictFromDiskCache(final ImageRequest imageRequest) {
CacheKey cacheKey = mCacheKeyFactory.getEncodedCacheKey(imageRequest, null);
mMainBufferedDiskCache.remove(cacheKey);
mSmallImageBufferedDiskCache.remove(cacheKey);
}