KeepAliveThread.java

/*
 * Copyright 2011 Henry Coles and Stefan Penndorf
 *
 * 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 com.example;

import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;

/**
 *
 *
 * @author Stefan Penndorf <stefan.penndorf@gmail.com>
 */
public class KeepAliveThread {

  private final ExecutorService ex;

  public KeepAliveThread() {
    final int numberOfThreads = 5;
    this.ex = Executors.newFixedThreadPool(numberOfThreads);
  }

  public Future<String> run() {
    return this.ex.submit(new Callable<String>() {
      @Override
      public String call() throws Exception {
        return System.getProperty("foobar");
      }
    });
  }

}