/*
* 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.samza.logging.log4j;
import static org.junit.Assert.assertEquals;
import java.lang.management.ManagementFactory;
import java.rmi.registry.LocateRegistry;
import java.util.ArrayList;
import java.util.List;
import java.util.Iterator;
import javax.management.Attribute;
import javax.management.MBeanServer;
import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXConnectorServer;
import javax.management.remote.JMXConnectorServerFactory;
import javax.management.remote.JMXServiceURL;
import org.apache.log4j.AppenderSkeleton;
import org.apache.log4j.Logger;
import org.apache.log4j.spi.LoggingEvent;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
/*
* These tests assume that log4j.xml and log4j are both set on the classpath
* with the JmxAppender added as a root-level appender.
*/
public class TestJmxAppender {
public static final int port = 5500;
public static final JMXServiceURL url = getJmxServiceURL();
private static JMXConnectorServer cs = null;
private static final Logger log = Logger.getLogger(TestJmxAppender.class.getName());
private static JMXServiceURL getJmxServiceURL() {
try {
return new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:" + port + "/jmxapitestrmi");
} catch(Exception e) {
throw new RuntimeException(e);
}
}
@BeforeClass
public static void beforeSetupServers() throws Exception {
LocateRegistry.createRegistry(port);
MBeanServer mbeanServer = ManagementFactory.getPlatformMBeanServer();
cs = JMXConnectorServerFactory.newJMXConnectorServer(url, null, mbeanServer);
cs.start();
}
@AfterClass
public static void afterCleanLogDirs() throws Exception {
if (cs != null) {
cs.stop();
}
}
@Test
public void testJmxAppender() throws Exception {
MBeanServerConnection mbserver = JMXConnectorFactory.connect(url).getMBeanServerConnection();
ObjectName objectName = new ObjectName(JmxAppender.JMX_OBJECT_DOMAIN + ":type=" + JmxAppender.JMX_OBJECT_TYPE + ",name=" + JmxAppender.JMX_OBJECT_NAME);
String level = null;
MockAppender mockAppender = new MockAppender();
Logger.getRootLogger().addAppender(mockAppender);
// Check INFO is set (from log4j.xml).
level = (String) mbserver.getAttribute(objectName, "Level");
assertEquals("INFO", level);
log.info("info1");
log.debug("debug1");
// Set to debug.
mbserver.setAttribute(objectName, new Attribute("Level", "debug"));
// Check DEBUG is set.
level = (String) mbserver.getAttribute(objectName, "Level");
assertEquals("DEBUG", level);
log.info("info2");
log.debug("debug2");
List<LoggingEvent> logLines = mockAppender.getLogLines();
// Should not have debug1 because log level is info at first.
Iterator<LoggingEvent> logLineIterator = logLines.iterator();
assertEquals(3, logLines.size());
assertEquals("info1", logLineIterator.next().getMessage());
assertEquals("info2", logLineIterator.next().getMessage());
assertEquals("debug2", logLineIterator.next().getMessage());
}
public static final class MockAppender extends AppenderSkeleton {
private final List<LoggingEvent> logLines;
public MockAppender() {
logLines = new ArrayList<LoggingEvent>();
}
@Override
public void close() {
}
@Override
public boolean requiresLayout() {
return false;
}
@Override
protected void append(LoggingEvent event) {
logLines.add(event);
}
public List<LoggingEvent> getLogLines() {
return logLines;
}
}
}