/*
* 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.servicemix.web.model;
import java.lang.ref.Reference;
import java.lang.ref.SoftReference;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import javax.management.MBeanServerConnection;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import org.springframework.jmx.access.MBeanProxyFactoryBean;
public class ProxyManager {
private final MBeanServerConnection server;
private final Map<ObjectName, Reference<Object>> proxies = new ConcurrentHashMap<ObjectName, Reference<Object>>();
public ProxyManager(MBeanServerConnection server) {
this.server = server;
}
@SuppressWarnings("unchecked")
public<T> T getProxy(ObjectName name, Class<T> type) {
Reference r = proxies.get(name);
T proxy = (r != null) ? (T) r.get() : null;
if (proxy == null) {
MBeanProxyFactoryBean factory = new MBeanProxyFactoryBean();
factory.setServer(server);
try {
factory.setObjectName(name.toString());
} catch (MalformedObjectNameException e) {
throw new IllegalStateException(e);
}
factory.setProxyInterface(type);
factory.setUseStrictCasing(false);
factory.afterPropertiesSet();
proxy = (T) factory.getObject();
proxies.put(name, new SoftReference<Object>(proxy));
}
return proxy;
}
}