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 
17 package com.android.camera.one.v2.photo;
18 
19 import android.hardware.camera2.CaptureFailure;
20 import android.hardware.camera2.TotalCaptureResult;
21 
22 import com.android.camera.one.v2.camera2proxy.AndroidTotalCaptureResultProxy;
23 import com.android.camera.one.v2.camera2proxy.TotalCaptureResultProxy;
24 import com.android.camera.one.v2.core.ResponseListener;
25 import com.google.common.util.concurrent.ListenableFuture;
26 import com.google.common.util.concurrent.SettableFuture;
27 
28 /**
29  * A ResponseListener which puts the result in a Future. Each instance is only
30  * good for a single (non-repeating) request.
31  */
32 public final class MetadataFuture extends ResponseListener {
33     private final SettableFuture<TotalCaptureResultProxy> mMetadata;
34 
MetadataFuture()35     public MetadataFuture() {
36         mMetadata = SettableFuture.create();
37     }
38 
39     @Override
onCompleted(TotalCaptureResult result)40     public void onCompleted(TotalCaptureResult result) {
41         super.onCompleted(result);
42         mMetadata.set(new AndroidTotalCaptureResultProxy(result));
43     }
44 
45     @Override
onFailed(CaptureFailure failure)46     public void onFailed(CaptureFailure failure) {
47         super.onFailed(failure);
48         if (failure.getReason() == CaptureFailure.REASON_FLUSHED) {
49             mMetadata.cancel(true);
50         } else if (failure.getReason() == CaptureFailure.REASON_ERROR) {
51             mMetadata.setException(new IllegalStateException("CaptureFailure.REASON_ERROR!"));
52         }
53     }
54 
getMetadata()55     public ListenableFuture<TotalCaptureResultProxy> getMetadata() {
56         return mMetadata;
57     }
58 }
59