/*
* 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.log4j.jmx;
import org.apache.log4j.Logger;
import javax.management.JMException;
import javax.management.MBeanServer;
import javax.management.MBeanServerFactory;
import javax.management.ObjectName;
import java.lang.reflect.InvocationTargetException;
import java.io.InterruptedIOException;
/**
* Manages an instance of com.sun.jdmk.comm.HtmlAdapterServer which
* was provided for demonstration purposes in the
* Java Management Extensions Reference Implementation 1.2.1.
* This class is provided to maintain compatibility with earlier
* versions of log4j and use in new code is discouraged.
*
* @deprecated
*/
public class Agent {
/**
* Diagnostic logger.
* @deprecated
*/
static Logger log = Logger.getLogger(Agent.class);
/**
* Create new instance.
* @deprecated
*/
public Agent() {
}
/**
* Creates a new instance of com.sun.jdmk.comm.HtmlAdapterServer
* using reflection.
*
* @since 1.2.16
* @return new instance.
*/
private static Object createServer() {
Object newInstance = null;
try {
newInstance = Class.forName(
"com.sun.jdmk.comm.HtmlAdapterServer").newInstance();
} catch (ClassNotFoundException ex) {
throw new RuntimeException(ex.toString());
} catch (InstantiationException ex) {
throw new RuntimeException(ex.toString());
} catch (IllegalAccessException ex) {
throw new RuntimeException(ex.toString());
}
return newInstance;
}
/**
* Invokes HtmlAdapterServer.start() using reflection.
*
* @since 1.2.16
* @param server instance of com.sun.jdmk.comm.HtmlAdapterServer.
*/
private static void startServer(final Object server) {
try {
server.getClass().getMethod("start", new Class[0]).
invoke(server, new Object[0]);
} catch(InvocationTargetException ex) {
Throwable cause = ex.getTargetException();
if (cause instanceof RuntimeException) {
throw (RuntimeException) cause;
} else if (cause != null) {
if (cause instanceof InterruptedException
|| cause instanceof InterruptedIOException) {
Thread.currentThread().interrupt();
}
throw new RuntimeException(cause.toString());
} else {
throw new RuntimeException();
}
} catch(NoSuchMethodException ex) {
throw new RuntimeException(ex.toString());
} catch(IllegalAccessException ex) {
throw new RuntimeException(ex.toString());
}
}
/**
* Starts instance of HtmlAdapterServer.
* @deprecated
*/
public void start() {
MBeanServer server = MBeanServerFactory.createMBeanServer();
Object html = createServer();
try {
log.info("Registering HtmlAdaptorServer instance.");
server.registerMBean(html, new ObjectName("Adaptor:name=html,port=8082"));
log.info("Registering HierarchyDynamicMBean instance.");
HierarchyDynamicMBean hdm = new HierarchyDynamicMBean();
server.registerMBean(hdm, new ObjectName("log4j:hiearchy=default"));
} catch(JMException e) {
log.error("Problem while registering MBeans instances.", e);
return;
} catch(RuntimeException e) {
log.error("Problem while registering MBeans instances.", e);
return;
}
startServer(html);
}
}
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