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 android.content.Context;
19 
20 import com.android.messaging.datamodel.media.MediaResourceManager.MediaResourceLoadListener;
21 
22 /**
23  * The base data holder/builder class for constructing async/sync MediaRequest objects during
24  * runtime.
25  */
26 public abstract class MediaRequestDescriptor<T extends RefCountedMediaResource> {
buildSyncMediaRequest(Context context)27     public abstract MediaRequest<T> buildSyncMediaRequest(Context context);
28 
29     /**
30      * Builds an async media request to be used with
31      * {@link MediaResourceManager#requestMediaResourceAsync(MediaRequest)}
32      */
buildAsyncMediaRequest(final Context context, final MediaResourceLoadListener<T> listener)33     public BindableMediaRequest<T> buildAsyncMediaRequest(final Context context,
34             final MediaResourceLoadListener<T> listener) {
35         final MediaRequest<T> syncRequest = buildSyncMediaRequest(context);
36         return AsyncMediaRequestWrapper.createWith(syncRequest, listener);
37     }
38 }
39