/*
* 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.flume.instrumentation.util;
import com.google.common.base.Throwables;
import com.google.common.collect.Maps;
import java.lang.management.ManagementFactory;
import java.util.Map;
import java.util.Set;
import javax.management.Attribute;
import javax.management.AttributeList;
import javax.management.MBeanAttributeInfo;
import javax.management.MBeanServer;
import javax.management.ObjectInstance;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
*
*/
public class JMXPollUtil {
private static Logger LOG = LoggerFactory.getLogger(JMXPollUtil.class);
private static MBeanServer mbeanServer = ManagementFactory.getPlatformMBeanServer();
public static Map<String, Map<String, String>> getAllMBeans() {
Map<String, Map<String, String>> mbeanMap = Maps.newHashMap();
Set<ObjectInstance> queryMBeans = null;
try {
queryMBeans = mbeanServer.queryMBeans(null, null);
} catch (Exception ex) {
LOG.error("Could not get Mbeans for monitoring", ex);
Throwables.propagate(ex);
}
for (ObjectInstance obj : queryMBeans) {
try {
if (!obj.getObjectName().toString().startsWith("org.apache.flume")) {
continue;
}
MBeanAttributeInfo[] attrs = mbeanServer.getMBeanInfo(obj.getObjectName()).getAttributes();
String[] strAtts = new String[attrs.length];
for (int i = 0; i < strAtts.length; i++) {
strAtts[i] = attrs[i].getName();
}
AttributeList attrList = mbeanServer.getAttributes(obj.getObjectName(), strAtts);
String component = obj.getObjectName().toString().substring(
obj.getObjectName().toString().indexOf('=') + 1);
Map<String, String> attrMap = Maps.newHashMap();
for (Object attr : attrList) {
Attribute localAttr = (Attribute) attr;
if (localAttr.getName().equalsIgnoreCase("type")) {
component = localAttr.getValue() + "." + component;
}
attrMap.put(localAttr.getName(), localAttr.getValue().toString());
}
mbeanMap.put(component, attrMap);
} catch (Exception e) {
LOG.error("Unable to poll JMX for metrics.", e);
}
}
return mbeanMap;
}
}