Java tutorial
/* * JBoss, Home of Professional Open Source * Copyright 2011, Red Hat, Inc. and individual contributors * by the @authors tag. See the copyright.txt in the distribution for a * full listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package org.rhq.plugins.jslee; import java.util.HashSet; import java.util.Set; import javax.management.MBeanServerConnection; import javax.management.MBeanServerInvocationHandler; import javax.management.ObjectName; import javax.security.auth.login.LoginException; import javax.slee.SbbID; import javax.slee.ServiceID; import javax.slee.management.ServiceUsageMBean; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.rhq.core.domain.configuration.PropertySimple; import org.rhq.core.pluginapi.inventory.DiscoveredResourceDetails; import org.rhq.core.pluginapi.inventory.InvalidPluginConfigurationException; import org.rhq.core.pluginapi.inventory.ResourceDiscoveryComponent; import org.rhq.core.pluginapi.inventory.ResourceDiscoveryContext; import org.rhq.plugins.jslee.utils.MBeanServerUtils; public class ServiceSbbUsageParameterSetDiscoveryComponent implements ResourceDiscoveryComponent<ServiceSbbComponent> { private final Log log = LogFactory.getLog(ServiceSbbUsageParameterSetDiscoveryComponent.class); public Set<DiscoveredResourceDetails> discoverResources(ResourceDiscoveryContext<ServiceSbbComponent> context) throws InvalidPluginConfigurationException, Exception { MBeanServerUtils mbeanUtils = context.getParentResourceComponent().getMBeanServerUtils(); try { if (log.isDebugEnabled()) { log.debug("RAEntityDiscoveryComponent.discoverResources() called"); } Set<DiscoveredResourceDetails> discoveredUsageParameterSets = new HashSet<DiscoveredResourceDetails>(); MBeanServerConnection connection = mbeanUtils.getConnection(); mbeanUtils.login(); ServiceID serviceId = context.getParentResourceComponent().getServiceID(); // As an example, if a particular service has the name FooService, vendor FooCompany, and version 1.0, // then the Object Name of a ServiceUsageMBean for that service would be: // javax.slee.management.usage:type=ServiceUsage,serviceName="FooService", serviceVendor="FooCompany",serviceVersion="1.0" ObjectName serviceUsageON = new ObjectName(ServiceUsageMBean.BASE_OBJECT_NAME + ',' + ServiceUsageMBean.SERVICE_NAME_KEY + '=' + ObjectName.quote(serviceId.getName()) + ',' + ServiceUsageMBean.SERVICE_VENDOR_KEY + '=' + ObjectName.quote(serviceId.getVendor()) + ',' + ServiceUsageMBean.SERVICE_VERSION_KEY + '=' + ObjectName.quote(serviceId.getVersion())); ServiceUsageMBean serviceUsageMBean = (ServiceUsageMBean) MBeanServerInvocationHandler.newProxyInstance( connection, serviceUsageON, javax.slee.management.ServiceUsageMBean.class, false); SbbID sbbId = context.getParentResourceComponent().getSbbID(); String[] usageParameterSets = serviceUsageMBean.getUsageParameterSets(sbbId); // This is default one String defaultDescription = "Usage Parameter Set : " + "<default>" + " for " + sbbId + " @" + serviceId; String defaultKey = "<default>" + "@" + sbbId + "@" + serviceId; DiscoveredResourceDetails defaultDiscoveredEntity = new DiscoveredResourceDetails( context.getResourceType(), defaultKey, "<default>" + " Usage Paramaters Set", sbbId.getVersion(), defaultDescription, null, null); defaultDiscoveredEntity.getPluginConfiguration() .put(new PropertySimple("usageParameterSet", "<default>")); defaultDiscoveredEntity.getPluginConfiguration().put(new PropertySimple("name", sbbId.getName())); defaultDiscoveredEntity.getPluginConfiguration().put(new PropertySimple("version", sbbId.getVersion())); defaultDiscoveredEntity.getPluginConfiguration().put(new PropertySimple("vendor", sbbId.getVendor())); discoveredUsageParameterSets.add(defaultDiscoveredEntity); for (String usageParameterSet : usageParameterSets) { String description = "Usage Parameter Set : " + usageParameterSet + " for " + sbbId + " @" + serviceId; String key = usageParameterSet + "@" + sbbId + "@" + serviceId; DiscoveredResourceDetails discoveredEntity = new DiscoveredResourceDetails( context.getResourceType(), key, usageParameterSet + " Usage Paramaters Set", sbbId.getVersion(), description, null, null); discoveredEntity.getPluginConfiguration() .put(new PropertySimple("usageParameterSet", usageParameterSet)); discoveredEntity.getPluginConfiguration().put(new PropertySimple("name", sbbId.getName())); discoveredEntity.getPluginConfiguration().put(new PropertySimple("version", sbbId.getVersion())); discoveredEntity.getPluginConfiguration().put(new PropertySimple("vendor", sbbId.getVendor())); discoveredUsageParameterSets.add(discoveredEntity); } if (log.isInfoEnabled()) { log.info("Discovered " + discoveredUsageParameterSets.size() + " JAIN SLEE Usage Parameter Sets for " + sbbId + " @" + serviceId + "."); } return discoveredUsageParameterSets; } finally { try { mbeanUtils.logout(); } catch (LoginException e) { if (log.isDebugEnabled()) { log.debug("Failed to logout from secured JMX", e); } } } } }