content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.ambari.server;
  
  import java.io.IOException;
  import java.net.ServerSocket;
  
  import org.glassfish.jersey.server.ResourceConfig;
  import org.glassfish.jersey.test.JerseyTest;
  import org.glassfish.jersey.test.TestProperties;
  
  /**
   * Makes JerseyTest use random port in case default one is unavailable.
   */
  public class RandomPortJerseyTest extends JerseyTest {
    private static int testPort;
  
    @Override
    protected ResourceConfig configure() {
      // Enable TestContainer to not start at default port if it's already in use
      forceSet(TestProperties.CONTAINER_PORT, getPort(8079)+"");
      return new ResourceConfig().packages("com.example"); // replace with your package
    }
  
    protected int getPort(int defaultPort) {
      ServerSocket server = null;
      int port = -1;
      try {
        server = new ServerSocket(defaultPort);
        port = server.getLocalPort();
      } catch (IOException e) {
      } finally {
        if (server != null) {
          try {
            server.close();
          } catch (IOException e) {
          }
        }
      }
      if ((port != -1) || (defaultPort == 0)) {
        this.testPort = port;
        return port;
      }
      return getPort(0);
    }
  
    public int getTestPort() {
      return testPort;
    }
  }
  