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/*
* Copyright 2015 Open Networking Laboratory
*
* 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 org.onlab.junit;
import java.util.Collection;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
/**
* A scheduled executor service that does not do any of the work scheduled to it.
* <p>
* This is useful for testing when you want to disable a background scheduled
* task.
* </p>
*/
public class NullScheduledExecutor implements ScheduledExecutorService {
@Override
public ScheduledFuture<?> schedule(Runnable command, long delay,
TimeUnit unit) {
return null;
}
@Override
public <V> ScheduledFuture<V> schedule(Callable<V> callable, long delay,
TimeUnit unit) {
return null;
}
@Override
public ScheduledFuture<?> scheduleAtFixedRate(Runnable command,
long initialDelay,
long period, TimeUnit unit) {
return null;
}
@Override
public ScheduledFuture<?> scheduleWithFixedDelay(Runnable command,
long initialDelay,
long delay,
TimeUnit unit) {
return null;
}
@Override
public void shutdown() {
}
@Override
public List<Runnable> shutdownNow() {
return null;
}
@Override
public boolean isShutdown() {
return false;
}
@Override
public boolean isTerminated() {
return false;
}
@Override
public boolean awaitTermination(long timeout, TimeUnit unit)
throws InterruptedException {
return false;
}
@Override
public <T> Future<T> submit(Callable<T> task) {
return null;
}
@Override
public <T> Future<T> submit(Runnable task, T result) {
return null;
}
@Override
public Future<?> submit(Runnable task) {
return null;
}
@Override
public <T> List<Future<T>> invokeAll(
Collection<? extends Callable<T>> tasks)
throws InterruptedException {
return null;
}
@Override
public <T> List<Future<T>> invokeAll(
Collection<? extends Callable<T>> tasks, long timeout,
TimeUnit unit) throws InterruptedException {
return null;
}
@Override
public <T> T invokeAny(Collection<? extends Callable<T>> tasks)
throws InterruptedException, ExecutionException {
return null;
}
@Override
public <T> T invokeAny(Collection<? extends Callable<T>> tasks,
long timeout, TimeUnit unit)
throws InterruptedException, ExecutionException, TimeoutException {
return null;
}
@Override
public void execute(Runnable command) {
}
}
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