59 lines
2.2 KiB
Java
59 lines
2.2 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.content.Context;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.List;
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/**
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* Serves local content URI based image requests.
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*/
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public class UriImageRequest<D extends UriImageRequestDescriptor> extends ImageRequest<D> {
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public UriImageRequest(final Context context, final D descriptor) {
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super(context, descriptor);
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}
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@Override
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protected InputStream getInputStreamForResource() throws FileNotFoundException {
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return mContext.getContentResolver().openInputStream(mDescriptor.uri);
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}
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@Override
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protected ImageResource loadMediaInternal(List<MediaRequest<ImageResource>> chainedTasks)
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throws IOException {
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final ImageResource resource = super.loadMediaInternal(chainedTasks);
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// Check if the caller asked for compression. If so, chain an encoding task if possible.
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if (mDescriptor.allowCompression && chainedTasks != null) {
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@SuppressWarnings("unchecked")
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final MediaRequest<ImageResource> chainedTask = (MediaRequest<ImageResource>)
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resource.getMediaEncodingRequest(this);
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if (chainedTask != null) {
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chainedTasks.add(chainedTask);
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// Don't cache decoded image resource since we'll perform compression and cache
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// the compressed resource.
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if (resource instanceof DecodedImageResource) {
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((DecodedImageResource) resource).setCacheable(false);
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}
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}
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}
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return resource;
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}
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}
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