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
17package com.android.camera.one.v2.photo;
18
19import android.hardware.camera2.CaptureFailure;
20import android.hardware.camera2.TotalCaptureResult;
21
22import com.android.camera.one.v2.camera2proxy.AndroidTotalCaptureResultProxy;
23import com.android.camera.one.v2.camera2proxy.TotalCaptureResultProxy;
24import com.android.camera.one.v2.core.ResponseListener;
25import com.google.common.util.concurrent.ListenableFuture;
26import 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 */
32public final class MetadataFuture extends ResponseListener {
33    private final SettableFuture<TotalCaptureResultProxy> mMetadata;
34
35    public MetadataFuture() {
36        mMetadata = SettableFuture.create();
37    }
38
39    @Override
40    public void onCompleted(TotalCaptureResult result) {
41        super.onCompleted(result);
42        mMetadata.set(new AndroidTotalCaptureResultProxy(result));
43    }
44
45    @Override
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
55    public ListenableFuture<TotalCaptureResultProxy> getMetadata() {
56        return mMetadata;
57    }
58}
59