1 /*
2  * Copyright (C) 2018 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.dialer.common.concurrent;
18 
19 import com.google.common.util.concurrent.FutureCallback;
20 import com.google.common.util.concurrent.MoreExecutors;
21 
22 /**
23  * Returns a {@link FutureCallback} which does nothing on success and crashes the application on
24  * failure.
25  *
26  * <p>You generally shouldn't use this for futures which should be tied to UI, for those use {@link
27  * UiListener}.
28  *
29  * <p>Can be safely used with {@link MoreExecutors#directExecutor()}
30  */
31 public final class DefaultFutureCallback<T> implements FutureCallback<T> {
32 
33   @Override
onSuccess(T unused)34   public void onSuccess(T unused) {}
35 
36   @Override
onFailure(Throwable throwable)37   public void onFailure(Throwable throwable) {
38     ThreadUtil.getUiThreadHandler()
39         .post(
40             () -> {
41               throw new RuntimeException(throwable);
42             });
43   }
44 }
45