Java tutorial
/* * 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 brooklyn.entity.webapp.jboss; import java.util.LinkedHashMap; import java.util.Map; import java.util.concurrent.TimeUnit; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import brooklyn.entity.Entity; import brooklyn.entity.webapp.JavaWebAppSoftwareProcessImpl; import brooklyn.event.feed.jmx.JmxAttributePollConfig; import brooklyn.event.feed.jmx.JmxFeed; import com.google.common.base.Functions; public class JBoss6ServerImpl extends JavaWebAppSoftwareProcessImpl implements JBoss6Server { public static final Logger log = LoggerFactory.getLogger(JBoss6ServerImpl.class); private volatile JmxFeed jmxFeed; public JBoss6ServerImpl() { this(new LinkedHashMap(), null); } public JBoss6ServerImpl(Entity parent) { this(new LinkedHashMap(), parent); } public JBoss6ServerImpl(Map flags) { this(flags, null); } public JBoss6ServerImpl(Map flags, Entity parent) { super(flags, parent); } @Override public void connectSensors() { super.connectSensors(); String requestProcessorMbeanName = "jboss.web:type=GlobalRequestProcessor,name=http-*"; String serverMbeanName = "jboss.system:type=Server"; jmxFeed = JmxFeed.builder().entity(this).period(500, TimeUnit.MILLISECONDS) .pollAttribute(new JmxAttributePollConfig<Integer>(ERROR_COUNT) .objectName(requestProcessorMbeanName).attributeName("errorCount")) .pollAttribute(new JmxAttributePollConfig<Integer>(REQUEST_COUNT) .objectName(requestProcessorMbeanName).attributeName("requestCount")) .pollAttribute(new JmxAttributePollConfig<Integer>(TOTAL_PROCESSING_TIME) .objectName(requestProcessorMbeanName).attributeName("processingTime")) .pollAttribute(new JmxAttributePollConfig<Boolean>(SERVICE_UP).objectName(serverMbeanName) .attributeName("Started").onException(Functions.constant(false))) .build(); } @Override public void disconnectSensors() { super.disconnectSensors(); if (jmxFeed != null) jmxFeed.stop(); } @Override public Class<JBoss6Driver> getDriverInterface() { return JBoss6Driver.class; } }