com.yahoo.jdisc.application.ContainerThread Maven / Gradle / Ivy
// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.jdisc.application;
import com.google.inject.Inject;
import com.google.inject.Provider;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
/**
* This class decorates {@link Thread} to allow for internal jDISC optimizations. Whenever possible a jDISC
* application should use this class instead of Thread. The {@link ContainerThread.Factory} class is a helper-class for
* working with the {@link Executors} framework.
*
* @author Simon Thoresen Hult
*/
public class ContainerThread extends Thread {
private final MetricConsumer consumer;
/**
* Allocates a new ContainerThread object. This constructor calls the parent {@link Thread#Thread(Runnable)}
* constructor.
*
* @param target the object whose run method is called.
* @param consumer the MetricConsumer of this thread.
*/
public ContainerThread(Runnable target, MetricConsumer consumer) {
super(target);
this.consumer = consumer;
}
/**
* Returns the {@link MetricConsumer} of this. Note that this may be null.
*
* @return The MetricConsumer of this, or null.
*/
public MetricConsumer consumer() {
return consumer;
}
/**
* This class implements the {@link ThreadFactory} interface on top of a {@link Provider} for {@link
* MetricConsumer} instances.
*/
public static class Factory implements ThreadFactory {
private final Provider provider;
@Inject
public Factory(Provider provider) {
this.provider = provider;
}
@Override
public Thread newThread(Runnable target) {
return new ContainerThread(target, provider.get());
}
}
}