/*
* Licensed 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.ngrinder.monitor.agent;
import org.ngrinder.monitor.mxbean.core.MXBean;
import java.util.Collection;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
*
* Used to store monitor MXBean in a map, with the domain name as the key.
*
* @author Mavlarn
* @since 2.0
*/
public final class MXBeanStorage {
private Map<String, MXBean> cachedMxBeans = new ConcurrentHashMap<String, MXBean>();
private static final MXBeanStorage INSTANCE = new MXBeanStorage();
private MXBeanStorage() {
}
public int getSize() {
return cachedMxBeans.size();
}
public static MXBeanStorage getInstance() {
return INSTANCE;
}
/**
* get the monitor MXBean from the storage.
* @param key is the domain name of JMX
* @return MXBean registered with this key
*/
public MXBean getMXBean(String key) {
return cachedMxBeans.get(key);
}
/**
* Add the monitor MXBean into the storage, with the domain name as the key.
* @param key is the domain name of JMX
* @param mxBean is the monitor MXBean
*/
public void addMXBean(String key, MXBean mxBean) {
cachedMxBeans.put(key, mxBean);
}
public Collection<MXBean> getMXBeans() {
return cachedMxBeans.values();
}
}