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File system apis.

There is a newer version: 2.1.12

package com.swoval.concurrent;

import java.util.concurrent.atomic.AtomicInteger;

/** Provides a thread factory that names the threads with a given prefix. */
public class ThreadFactory implements java.util.concurrent.ThreadFactory {
  private final ThreadGroup group;
  private final String name;
  private AtomicInteger counter = new AtomicInteger(0);

  /**
   * Creates a new ThreadFactor with thread name prefix.
   *
   * @param name the prefix for the name of thread
   */
  public ThreadFactory(String name) {
    SecurityManager s = System.getSecurityManager();
    group = (s != null) ? s.getThreadGroup() : Thread.currentThread().getThreadGroup();
    this.name = name;
  }

  @Override
  public Thread newThread(Runnable r) {
    return new Thread(group, r, name + "-" + counter.incrementAndGet());
  }
}