| /** |
| * 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.camel.component.jmx; |
| |
| import java.lang.management.ManagementFactory; |
| import java.util.UUID; |
| |
| import javax.management.NotificationFilter; |
| import javax.management.ObjectName; |
| import javax.management.monitor.CounterMonitor; |
| import javax.management.monitor.GaugeMonitor; |
| import javax.management.monitor.Monitor; |
| import javax.management.monitor.StringMonitor; |
| |
| import org.apache.camel.Processor; |
| |
| /** |
| * Variant of the consumer that creates and registers a monitor bean to |
| * monitor object and attribute referenced by the endpoint. The only |
| * difference here is the act of adding and removing the notification |
| * listener. |
| * |
| */ |
| public class JMXMonitorConsumer extends JMXConsumer { |
| |
| /** name of our monitor. We keep a reference since it needs to be removed when we stop listening */ |
| ObjectName mMonitorObjectName; |
| |
| public JMXMonitorConsumer(JMXEndpoint aEndpoint, Processor aProcessor) { |
| super(aEndpoint, aProcessor); |
| } |
| |
| @Override |
| protected void addNotificationListener() throws Exception { |
| |
| JMXEndpoint ep = (JMXEndpoint) getEndpoint(); |
| // create the monitor bean |
| Monitor bean = null; |
| if (ep.getMonitorType().equals("counter")) { |
| CounterMonitor counter = new CounterMonitor(); |
| counter.setInitThreshold(ep.getInitThreshold()); |
| counter.setOffset(ep.getOffset()); |
| counter.setModulus(ep.getModulus()); |
| counter.setDifferenceMode(ep.isDifferenceMode()); |
| counter.setNotify(true); |
| bean = counter; |
| } else if (ep.getMonitorType().equals("gauge")) { |
| GaugeMonitor gm = new GaugeMonitor(); |
| gm.setNotifyHigh(ep.isNotifyHigh()); |
| gm.setNotifyLow(ep.isNotifyLow()); |
| gm.setDifferenceMode(ep.isDifferenceMode()); |
| Object attr = ManagementFactory.getPlatformMBeanServer().getAttribute(ep.getJMXObjectName(), ep.getObservedAttribute()); |
| Double highValue = ep.getThresholdHigh(); |
| Double lowValue = ep.getThresholdLow(); |
| if (attr instanceof Byte) { |
| gm.setThresholds(highValue.byteValue(), lowValue.byteValue()); |
| } else if (attr instanceof Integer) { |
| gm.setThresholds(highValue.intValue(), lowValue.intValue()); |
| } else if (attr instanceof Short) { |
| gm.setThresholds(highValue.shortValue(), lowValue.shortValue()); |
| } else if (attr instanceof Long) { |
| gm.setThresholds(highValue.longValue(), lowValue.longValue()); |
| } else if (attr instanceof Float) { |
| gm.setThresholds(highValue.floatValue(), lowValue.floatValue()); |
| } else { |
| gm.setThresholds(highValue, lowValue); |
| } |
| bean = gm; |
| } else if (ep.getMonitorType().equals("string")) { |
| StringMonitor sm = new StringMonitor(); |
| sm.setNotifyDiffer(ep.isNotifyDiffer()); |
| sm.setNotifyMatch(ep.isNotifyMatch()); |
| sm.setStringToCompare(ep.getStringToCompare()); |
| bean = sm; |
| } |
| |
| bean.addObservedObject(ep.getJMXObjectName()); |
| bean.setObservedAttribute(ep.getObservedAttribute()); |
| bean.setGranularityPeriod(ep.getGranularityPeriod()); |
| |
| // register the bean |
| mMonitorObjectName = new ObjectName(ep.getObjectDomain(), "name", "camel-jmx-monitor-" + UUID.randomUUID()); |
| ManagementFactory.getPlatformMBeanServer().registerMBean(bean, mMonitorObjectName); |
| |
| // add ourselves as a listener to it |
| NotificationFilter nf = ep.getNotificationFilter(); |
| getServerConnection().addNotificationListener(mMonitorObjectName, this, nf, bean); |
| bean.start(); |
| } |
| |
| @Override |
| protected void removeNotificationListener() throws Exception { |
| // remove ourselves as a listener |
| ManagementFactory.getPlatformMBeanServer().removeNotificationListener(mMonitorObjectName, this); |
| // unregister the monitor bean |
| ManagementFactory.getPlatformMBeanServer().unregisterMBean(mMonitorObjectName); |
| } |
| |
| } |