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FIFOQueueScheduler.java
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FIFOQueueScheduler.java
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/*
* Copyright 2018 Preferred.AI
*
* 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 ai.preferred.venom.job;
import javax.annotation.Nonnull;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.TimeUnit;
/**
* This class provides and implementation of scheduler with a first in
* first out queue.
* <p>
* Jobs in queue will be processed first in order of insertion.
* </p>
*
* @author Ween Jiann Lee
*/
public class FIFOQueueScheduler extends AbstractQueueScheduler {
/**
* Constructs an instance of FIFOQueueScheduler.
*/
public FIFOQueueScheduler() {
super(new LinkedBlockingQueue<>());
}
@Override
public final void put(final @Nonnull Job job) throws InterruptedException {
getQueue().put(job);
}
@Override
public final boolean offer(final Job job, final long timeout, final @Nonnull TimeUnit unit)
throws InterruptedException {
return getQueue().offer(job, timeout, unit);
}
@Override
public final boolean offer(final @Nonnull Job job) {
return getQueue().offer(job);
}
@Override
public final Job poll(final long timeout, final @Nonnull TimeUnit unit) throws InterruptedException {
return getQueue().poll(timeout, unit);
}
@Override
public final Job poll() {
return getQueue().poll();
}
}