org.infinispan.util.concurrent.BoundedExecutors Maven / Gradle / Ivy
package org.infinispan.util.concurrent;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
/**
* Similar to JDK {@link java.util.concurrent.Executors} except that the factory methods here allow you to specify the
* size of the blocking queue that backs the executor.
*
* @author Manik Surtani (manik AT jboss DOT org)
* @since 4.0
*/
public class BoundedExecutors {
/**
* Creates a thread pool that reuses a fixed set of threads operating off a shared bounded queue. If any thread
* terminates due to a failure during execution prior to shutdown, a new one will take its place if needed to execute
* subsequent tasks.
*
* @param nThreads the number of threads in the pool
* @param boundedQueueSize size of the bounded queue
* @return the newly created thread pool
*/
public static ExecutorService newFixedThreadPool(int nThreads, int boundedQueueSize) {
return new ThreadPoolExecutor(nThreads, nThreads,
0L, TimeUnit.MILLISECONDS,
new LinkedBlockingQueue(boundedQueueSize));
}
/**
* Creates a thread pool that reuses a fixed set of threads operating off a shared bounded queue, using the provided
* ThreadFactory to create new threads when needed.
*
* @param nThreads the number of threads in the pool
* @param threadFactory the factory to use when creating new threads
* @param boundedQueueSize size of the bounded queue
* @return the newly created thread pool
*/
public static ExecutorService newFixedThreadPool(int nThreads, ThreadFactory threadFactory, int boundedQueueSize) {
return new ThreadPoolExecutor(nThreads, nThreads,
0L, TimeUnit.MILLISECONDS,
new LinkedBlockingQueue(boundedQueueSize),
threadFactory);
}
}