LinkedBlockingQueue and ThreadPoolExecutor : ReentrantLock « JDK 7 « Java

1. Java
2. JDK 7
3. ReentrantLock

LinkedBlockingQueue and ThreadPoolExecutor

import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

public class Test {
  public static void main(String[] args) throws InterruptedException {
    BlockingQueue<Runnable> queue = new LinkedBlockingQueue<Runnable>();
    for (int i = 0; i < 10; i++) {
      final int localI = i;
      queue.add(new Runnable() {
        public void run() {
          doExpensiveOperation(localI);
        }
      });
    }
    ThreadPoolExecutor executor = new ThreadPoolExecutor(10, 10, 1000,
        TimeUnit.MILLISECONDS, queue);
    executor.prestartAllCoreThreads();
    executor.shutdown();
    executor.awaitTermination(100000, TimeUnit.SECONDS);
  }
  private static void doExpensiveOperation(int index) {
    System.out.println("Starting expensive operation " + index);
    try {
      Thread.sleep(index * 1000);
    } catch (InterruptedException e) {
      e.printStackTrace();
    }
    System.out.println("Ending   expensive operation " + index);
  }
}

 

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