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Diffstat (limited to 'android/os/HandlerExecutor.java')
-rw-r--r-- | android/os/HandlerExecutor.java | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/android/os/HandlerExecutor.java b/android/os/HandlerExecutor.java new file mode 100644 index 00000000..416b24b5 --- /dev/null +++ b/android/os/HandlerExecutor.java @@ -0,0 +1,45 @@ +/* + * Copyright (C) 2017 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package android.os; + +import android.annotation.NonNull; + +import com.android.internal.util.Preconditions; + +import java.util.concurrent.Executor; +import java.util.concurrent.RejectedExecutionException; + +/** + * An adapter {@link Executor} that posts all executed tasks onto the given + * {@link Handler}. + * + * @hide + */ +public class HandlerExecutor implements Executor { + private final Handler mHandler; + + public HandlerExecutor(@NonNull Handler handler) { + mHandler = Preconditions.checkNotNull(handler); + } + + @Override + public void execute(Runnable command) { + if (!mHandler.post(command)) { + throw new RejectedExecutionException(mHandler + " is shutting down"); + } + } +} |