Jeff Sharkey | 8439ac0 | 2017-12-12 17:26:23 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 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 android.os; |
| 18 | |
| 19 | import android.annotation.NonNull; |
| 20 | |
| 21 | import com.android.internal.util.Preconditions; |
| 22 | |
| 23 | import java.util.concurrent.Executor; |
| 24 | import java.util.concurrent.RejectedExecutionException; |
| 25 | |
| 26 | /** |
| 27 | * An adapter {@link Executor} that posts all executed tasks onto the given |
| 28 | * {@link Handler}. |
| 29 | * |
| 30 | * @hide |
| 31 | */ |
| 32 | public class HandlerExecutor implements Executor { |
| 33 | private final Handler mHandler; |
| 34 | |
| 35 | public HandlerExecutor(@NonNull Handler handler) { |
| 36 | mHandler = Preconditions.checkNotNull(handler); |
| 37 | } |
| 38 | |
| 39 | @Override |
| 40 | public void execute(Runnable command) { |
| 41 | if (!mHandler.post(command)) { |
| 42 | throw new RejectedExecutionException(mHandler + " is shutting down"); |
| 43 | } |
| 44 | } |
| 45 | } |