hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/webapp/JerseyTestBase.java

/**
 * 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.hadoop.yarn.webapp;

import java.io.IOException;
import java.util.Random;

import org.apache.hadoop.net.ServerSocketUtil;

import com.sun.jersey.test.framework.JerseyTest;
import com.sun.jersey.test.framework.WebAppDescriptor;

public abstract class JerseyTestBase extends JerseyTest {
  public JerseyTestBase(WebAppDescriptor appDescriptor) {
    super(appDescriptor);
  }

  @Override
  protected int getPort(int port) {
    Random rand = new Random();
    int jerseyPort = port + rand.nextInt(1000);
    try {
      jerseyPort = ServerSocketUtil.getPort(jerseyPort, 10);
    } catch (IOException e) {
      // Ignore exception even after 10 times free port is
      // not received.
    }
    return super.getPort(jerseyPort);
  }
}