Java tutorial
/* * Copyright 2014 by Cloudsoft Corporation Limited * * 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 brooklyn.entity.waratek; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import brooklyn.entity.java.UsesJmx; import brooklyn.entity.java.VanillaJavaAppImpl; import brooklyn.entity.waratek.cloudvm.JavaVirtualContainer; import brooklyn.entity.waratek.cloudvm.JavaVirtualMachine; import brooklyn.entity.waratek.cloudvm.WaratekUtils; import brooklyn.event.feed.jmx.JmxFeed; import brooklyn.event.feed.jmx.JmxHelper; import brooklyn.location.waratek.WaratekContainerLocation; import brooklyn.util.exceptions.Exceptions; import brooklyn.util.time.Duration; import com.google.common.base.Predicates; import com.google.common.collect.Iterables; public class WaratekJavaApplicationImpl extends VanillaJavaAppImpl implements WaratekJavaApplication { private static final Logger log = LoggerFactory.getLogger(WaratekJavaApplicationImpl.class); private JmxHelper jmxHelper; private JmxFeed jmxMxBeanFeed; @Override public void init() { log.info("Starting Waratek java application id {}", getId()); } @Override protected void preStart() { setAttribute(JavaVirtualContainer.JVC_NAME, getJavaVirtualContainer().getJvcName()); } @Override protected void connectSensors() { jmxHelper = new JmxHelper(getJavaVirtualMachine().getAttribute(UsesJmx.JMX_URL)); try { jmxHelper.connect(); } catch (Exception e) { throw Exceptions.propagate(e); } jmxMxBeanFeed = WaratekUtils.connectMXBeanSensors(jmxHelper, this, Duration.FIVE_SECONDS); WaratekUtils.connectEnrichers(this); connectServiceUpIsRunning(); } public JavaVirtualContainer getJavaVirtualContainer() { WaratekContainerLocation location = (WaratekContainerLocation) Iterables.find(getLocations(), Predicates.instanceOf(WaratekContainerLocation.class)); return location.getOwner(); } public JavaVirtualMachine getJavaVirtualMachine() { return getJavaVirtualContainer().getJavaVirtualMachine(); } @Override public void disconnectSensors() { disconnectServiceUpIsRunning(); if (jmxMxBeanFeed != null) jmxMxBeanFeed.stop(); if (jmxHelper != null) jmxHelper.disconnect(); } @Override public Class<? extends WaratekJavaApplicationDriver> getDriverInterface() { return WaratekJavaApplicationDriver.class; } }