/**
    * 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.hbase;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  import static org.junit.Assert.fail;
  
  import java.net.BindException;
  
  import org.apache.commons.lang.exception.ExceptionUtils;
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  import org.apache.hadoop.hbase.testclassification.MediumTests;
  
  import org.junit.Test;
  import org.junit.experimental.categories.Category;
  
  @Category(MediumTests.class)
  public class TestClusterPortAssignment {
    private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
    private static final Log LOG = LogFactory.getLog(TestClusterPortAssignment.class);
  
    /**
     * Check that we can start an HBase cluster specifying a custom set of
     * RPC and infoserver ports.
     */
    @Test(timeout = 300000)
    public void testClusterPortAssignment() throws Exception {
      boolean retry = false;
      do {
        int masterPort =  HBaseTestingUtility.randomFreePort();
        int masterInfoPort =  HBaseTestingUtility.randomFreePort();
        int rsPort =  HBaseTestingUtility.randomFreePort();
        int rsInfoPort =  HBaseTestingUtility.randomFreePort();
        TEST_UTIL.getConfiguration().setBoolean(LocalHBaseCluster.ASSIGN_RANDOM_PORTS, false);
        TEST_UTIL.getConfiguration().setBoolean(HConstants.REGIONSERVER_INFO_PORT_AUTO, false);
        TEST_UTIL.getConfiguration().setBoolean("fs.hdfs.impl.disable.cache", true);
        TEST_UTIL.getConfiguration().setInt(HConstants.MASTER_PORT, masterPort);
        TEST_UTIL.getConfiguration().setInt(HConstants.MASTER_INFO_PORT, masterInfoPort);
        TEST_UTIL.getConfiguration().setInt(HConstants.REGIONSERVER_PORT, rsPort);
        TEST_UTIL.getConfiguration().setInt(HConstants.REGIONSERVER_INFO_PORT, rsInfoPort);
        LOG.info(
            "Ports: " + masterPort + ", " + masterInfoPort + ", " + rsPort + ", "
                + rsInfoPort);
        try {
          MiniHBaseCluster cluster = TEST_UTIL.startMiniCluster();
          assertTrue("Cluster failed to come up", cluster.waitForActiveAndReadyMaster(30000));
          retry = false;
          assertEquals("Master RPC port is incorrect", masterPort,
            cluster.getMaster().getRpcServer().getListenerAddress().getPort());
          assertEquals("Master info port is incorrect", masterInfoPort,
            cluster.getMaster().getInfoServer().getPort());
          assertEquals("RS RPC port is incorrect", rsPort,
            cluster.getRegionServer(0).getRpcServer().getListenerAddress().getPort());
          assertEquals("RS info port is incorrect", rsInfoPort,
            cluster.getRegionServer(0).getInfoServer().getPort());
        } catch (Exception e) {
          Throwable rootCause = ExceptionUtils.getRootCause(e);
          if (rootCause instanceof BindException) {
            LOG.info("Failed bind, need to retry", e);
            retry = true;
          } else {
            LOG.error("Failed to start mini cluster", e);
            retry = false;
            fail("Failed to start mini cluster with assigned ports.");
          }
        } finally {
          TEST_UTIL.shutdownMiniCluster();
        }
      } while (retry);
    }
  }