org.apache.hadoop.hbase.TestJMXListener.java Source code

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Here is the source code for org.apache.hadoop.hbase.TestJMXListener.java

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/**
 *
 * 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 java.io.IOException;

import javax.management.MBeanServerConnection;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.coprocessor.CoprocessorHost;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.testclassification.MiscTests;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Rule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.rules.ExpectedException;

@Category({ MiscTests.class, MediumTests.class })
public class TestJMXListener {
    private static final Log LOG = LogFactory.getLog(TestJMXListener.class);
    private static HBaseTestingUtility UTIL = new HBaseTestingUtility();
    private static int connectorPort = 61120;

    @BeforeClass
    public static void setupBeforeClass() throws Exception {
        Configuration conf = UTIL.getConfiguration();

        conf.set(CoprocessorHost.REGIONSERVER_COPROCESSOR_CONF_KEY, JMXListener.class.getName());
        conf.setInt("regionserver.rmi.registry.port", connectorPort);

        UTIL.startMiniCluster();
    }

    @AfterClass
    public static void tearDownAfterClass() throws Exception {
        UTIL.shutdownMiniCluster();
    }

    @Test
    public void testStart() throws Exception {
        JMXConnector connector = JMXConnectorFactory
                .connect(JMXListener.buildJMXServiceURL(connectorPort, connectorPort));

        MBeanServerConnection mb = connector.getMBeanServerConnection();
        String domain = mb.getDefaultDomain();
        Assert.assertTrue("default domain is not correct", !domain.isEmpty());
        connector.close();

    }

    //shutdown hbase only. then try connect, IOException expected
    @Rule
    public ExpectedException expectedEx = ExpectedException.none();

    @Test
    public void testStop() throws Exception {
        MiniHBaseCluster cluster = UTIL.getHBaseCluster();
        LOG.info("shutdown hbase cluster...");
        cluster.shutdown();
        LOG.info("wait for the hbase cluster shutdown...");
        cluster.waitUntilShutDown();

        JMXConnector connector = JMXConnectorFactory
                .newJMXConnector(JMXListener.buildJMXServiceURL(connectorPort, connectorPort), null);
        expectedEx.expect(IOException.class);
        connector.connect();

    }

}