/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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*/
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package com.android.launcher3.util;
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import android.os.Handler;
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import android.os.Looper;
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import java.util.List;
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import java.util.concurrent.AbstractExecutorService;
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import java.util.concurrent.TimeUnit;
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/**
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* Extension of {@link AbstractExecutorService} which executed on a provided looper.
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*/
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public class LooperExecutor extends AbstractExecutorService {
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private final Handler mHandler;
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public LooperExecutor(Looper looper) {
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mHandler = new Handler(looper);
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}
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public Handler getHandler() {
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return mHandler;
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}
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@Override
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public void execute(Runnable runnable) {
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if (mHandler.getLooper() == Looper.myLooper()) {
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runnable.run();
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} else {
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mHandler.post(runnable);
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}
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}
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/**
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* Not supported and throws an exception when used.
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*/
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@Override
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@Deprecated
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public void shutdown() {
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throw new UnsupportedOperationException();
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}
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/**
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* Not supported and throws an exception when used.
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*/
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@Override
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@Deprecated
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public List<Runnable> shutdownNow() {
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throw new UnsupportedOperationException();
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}
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@Override
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public boolean isShutdown() {
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return false;
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}
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@Override
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public boolean isTerminated() {
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return false;
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}
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/**
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* Not supported and throws an exception when used.
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*/
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@Override
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@Deprecated
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public boolean awaitTermination(long l, TimeUnit timeUnit) throws InterruptedException {
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throw new UnsupportedOperationException();
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}
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}
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