org.apache.activemq.artemis.core.server.management.ArtemisMBeanServerBuilder Maven / Gradle / Ivy
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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,
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* See the License for the specific language governing permissions and
* limitations under the License.
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package org.apache.activemq.artemis.core.server.management;
import org.apache.activemq.artemis.logs.AuditLogger;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import javax.management.MBeanServer;
import javax.management.MBeanServerBuilder;
import javax.management.MBeanServerDelegate;
public class ArtemisMBeanServerBuilder extends MBeanServerBuilder {
private static volatile InvocationHandler guard;
public static void setGuard(InvocationHandler guardHandler) {
guard = guardHandler;
}
public static ArtemisMBeanServerGuard getArtemisMBeanServerGuard() {
return (ArtemisMBeanServerGuard) guard;
}
@Override
public MBeanServer newMBeanServer(String defaultDomain, MBeanServer outer, MBeanServerDelegate delegate) {
InvocationHandler handler = new MBeanInvocationHandler(super.newMBeanServer(defaultDomain, outer, delegate));
return (MBeanServer) Proxy.newProxyInstance(getClass().getClassLoader(), new Class[]{MBeanServer.class}, handler);
}
private static final class MBeanInvocationHandler implements InvocationHandler {
private final MBeanServer wrapped;
private final List guarded = Collections.unmodifiableList(Arrays.asList("invoke", "getAttribute", "getAttributes", "setAttribute", "setAttributes"));
MBeanInvocationHandler(MBeanServer mbeanServer) {
wrapped = mbeanServer;
}
@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
//if this is invoked via jolokia the address will be set by the filter
//if not we can deduct it from RMI or it must be internal
if (AuditLogger.isAnyLoggingEnabled() && AuditLogger.getRemoteAddress() == null) {
String name = Thread.currentThread().getName();
String url = "internal";
if (name.startsWith("RMI TCP Connection")) {
url = name.substring(name.indexOf('-') + 1);
}
AuditLogger.setRemoteAddress(url);
}
if (guarded.contains(method.getName())) {
if (ArtemisMBeanServerBuilder.guard == null) {
throw new IllegalStateException("ArtemisMBeanServerBuilder not initialized");
}
guard.invoke(proxy, method, args);
}
if (method.getName().equals("queryMBeans")) {
guard.invoke(wrapped, method, args);
}
if (method.getName().equals("equals")
&& method.getParameterTypes().length == 1
&& method.getParameterTypes()[0] == Object.class) {
Object target = args[0];
if (target != null && Proxy.isProxyClass(target.getClass())) {
InvocationHandler handler = Proxy.getInvocationHandler(target);
if (handler instanceof MBeanInvocationHandler) {
args[0] = ((MBeanInvocationHandler) handler).wrapped;
}
}
} else if (method.getName().equals("finalize") && method.getParameterTypes().length == 0) {
// special case finalize, don't route through to delegate because that will get its own call
return null;
}
try {
return method.invoke(wrapped, args);
} catch (InvocationTargetException ite) {
throw ite.getCause();
}
}
}
}