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 javax.management.MBeanServerConnection; import javax.management.MBeanServerInvocationHandler; import javax.management.ObjectName; import javax.security.auth.login.LoginException; import javax.slee.SbbID; import javax.slee.management.ResourceManagementMBean; import javax.slee.resource.ConfigProperties; import javax.slee.resource.ResourceAdaptorID; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.rhq.core.domain.configuration.Configuration; import org.rhq.core.domain.configuration.PropertyList; import org.rhq.core.domain.configuration.PropertyMap; import org.rhq.core.domain.configuration.PropertySimple; import org.rhq.core.domain.measurement.AvailabilityType; import org.rhq.core.pluginapi.inventory.DeleteResourceFacet; import org.rhq.core.pluginapi.inventory.InvalidPluginConfigurationException; import org.rhq.core.pluginapi.inventory.ResourceContext; import org.rhq.core.pluginapi.operation.OperationFacet; import org.rhq.core.pluginapi.operation.OperationResult; import org.rhq.plugins.jslee.utils.MBeanServerUtils; import org.rhq.plugins.jslee.utils.ResourceAdaptorUtils; public class RAEntityLinkComponent implements ResourceAdaptorUtils, DeleteResourceFacet, OperationFacet { private final Log log = LogFactory.getLog(RAEntityLinkComponent.class); private ResourceContext<RAEntityComponent> resourceContext; private String raEntityLinkName; private String raEntityName; private ResourceAdaptorID raId = null; private MBeanServerUtils mbeanUtils = null; private SbbID[] boundSbbs = null; private ConfigProperties configProperties = null; private ObjectName resourceManagement; public ResourceAdaptorID getResourceAdaptorID() { // TODO Auto-generated method stub return null; } public void start(ResourceContext context) throws InvalidPluginConfigurationException, Exception { if (log.isTraceEnabled()) { log.trace("start(" + context + ") called."); } this.resourceContext = context; this.resourceManagement = new ObjectName(ResourceManagementMBean.OBJECT_NAME); this.mbeanUtils = ((RAEntityComponent) context.getParentResourceComponent()).getMBeanServerUtils(); this.raEntityLinkName = this.resourceContext.getPluginConfiguration().getSimple("linkName") .getStringValue(); this.raEntityName = ((RAEntityComponent) context.getParentResourceComponent()).getRAEntityName(); this.raId = ((RAEntityComponent) context.getParentResourceComponent()).getResourceAdaptorID(); } public void stop() { if (log.isTraceEnabled()) { log.trace("stop() called."); } } public AvailabilityType getAvailability() { if (log.isTraceEnabled()) { log.trace("getAvailability() called."); } try { MBeanServerConnection connection = this.mbeanUtils.getConnection(); this.mbeanUtils.login(); ResourceManagementMBean resourceManagementMBean = (ResourceManagementMBean) MBeanServerInvocationHandler .newProxyInstance(connection, this.resourceManagement, javax.slee.management.ResourceManagementMBean.class, false); this.boundSbbs = resourceManagementMBean.getBoundSbbs(this.raEntityLinkName); } catch (Exception e) { log.error("getAvailability failed for RAEntityLinkComponent Link = " + this.raEntityLinkName); return AvailabilityType.DOWN; } finally { try { this.mbeanUtils.logout(); } catch (LoginException e) { if (log.isDebugEnabled()) { log.debug("Failed to logout from secured JMX", e); } } } return AvailabilityType.UP; } public MBeanServerUtils getMBeanServerUtils() { return this.mbeanUtils; } public void deleteResource() throws Exception { if (log.isTraceEnabled()) { log.trace("deleteResource() called."); } try { MBeanServerConnection connection = this.mbeanUtils.getConnection(); this.mbeanUtils.login(); ResourceManagementMBean resourceManagementMBean = (ResourceManagementMBean) MBeanServerInvocationHandler .newProxyInstance(connection, this.resourceManagement, javax.slee.management.ResourceManagementMBean.class, false); resourceManagementMBean.unbindLinkName(this.raEntityLinkName); } finally { try { this.mbeanUtils.logout(); } catch (LoginException e) { if (log.isDebugEnabled()) { log.debug("Failed to logout from secured JMX", e); } } } } public OperationResult invokeOperation(String name, Configuration parameters) throws InterruptedException, Exception { if (log.isDebugEnabled()) { log.debug("invokeOperation(" + name + ", " + parameters + ") called."); } OperationResult result = new OperationResult(); if ("listBoundSbbs".equals(name)) { result = doListBoundSBBs(); } else { throw new UnsupportedOperationException("Operation [" + name + "] is not supported yet."); } return result; } private OperationResult doListBoundSBBs() throws Exception { try { MBeanServerConnection connection = this.mbeanUtils.getConnection(); this.mbeanUtils.login(); ResourceManagementMBean resourceManagementMBean = (ResourceManagementMBean) MBeanServerInvocationHandler .newProxyInstance(connection, this.resourceManagement, javax.slee.management.ResourceManagementMBean.class, false); SbbID[] sbbIds = resourceManagementMBean.getBoundSbbs(this.raEntityLinkName); PropertyList columnList = new PropertyList("result"); for (SbbID sbbID : sbbIds) { PropertyMap col = new PropertyMap("element"); col.put(new PropertySimple("SbbName", sbbID.getName())); col.put(new PropertySimple("SbbVendeor", sbbID.getVendor())); col.put(new PropertySimple("SbbVersion", sbbID.getVersion())); columnList.add(col); } OperationResult result = new OperationResult(); result.getComplexResults().put(columnList); return result; } finally { try { this.mbeanUtils.logout(); } catch (LoginException e) { if (log.isDebugEnabled()) { log.debug("Failed to logout from secured JMX", e); } } } } }