Java tutorial
/* * 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 hermes.ext.ems; import hermes.Domain; import hermes.Hermes; import hermes.HermesAdmin; import hermes.HermesException; import hermes.JNDIConnectionFactory; import hermes.browser.HermesBrowser; import hermes.config.DestinationConfig; import hermes.ext.HermesAdminSupport; import java.lang.reflect.InvocationTargetException; import java.util.ArrayList; import java.util.Collection; import java.util.Map; import java.util.TreeMap; import javax.jms.Destination; import javax.jms.JMSException; import javax.jms.Queue; import javax.jms.QueueConnectionFactory; import javax.jms.TopicConnectionFactory; import org.apache.commons.beanutils.PropertyUtils; import org.apache.log4j.Logger; import com.tibco.tibjms.admin.DestinationInfo; import com.tibco.tibjms.admin.DurableInfo; import com.tibco.tibjms.admin.QueueInfo; import com.tibco.tibjms.admin.TibjmsAdmin; import com.tibco.tibjms.admin.TibjmsAdminException; import com.tibco.tibjms.admin.TopicInfo; /** * Administration plugin for Tibco EMS. * * @author colincrist@hermesjms.com last changed by: $Author: colincrist $ * @version $Id: TibcoEMSAdmin.java,v 1.10 2006/02/08 09:17:08 colincrist Exp $ */ public class TibcoEMSAdmin extends HermesAdminSupport implements HermesAdmin { private static final Logger log = Logger.getLogger(TibcoEMSAdmin.class); private TibcoEMSAdminFactory factory; private TibjmsAdmin admin; /** * */ public TibcoEMSAdmin(Hermes hermes, TibcoEMSAdminFactory factory) { super(hermes); this.factory = factory; } private synchronized TibjmsAdmin getAdmin() throws JMSException { if (admin == null) { admin = factory.createAdmin(getHermes().getConnectionFactory()); } return admin; } public synchronized void close() throws JMSException { try { if (admin != null) { admin.close(); admin = null; } } catch (TibjmsAdminException e) { throw new HermesException(e); } } public int getDepth(final DestinationConfig destination) throws JMSException { if (destination.isDurable()) { try { DurableInfo info = getAdmin().getDurable(destination.getClientID(), getHermes().getConnection().getClientID()); if (info != null) { return (int) info.getPendingMessageCount(); } else { throw new HermesException("No durable information availble for clientID=" + getHermes().getConnection().getClientID() + ", durableName=" + destination.getClientID()); } } catch (TibjmsAdminException ex) { throw new HermesException(ex); } } else { DestinationInfo info = getDestinationInfo(destination); if (info != null) { return (int) info.getPendingMessageCount(); } else { return 0; } } } public Map getStatistics(final DestinationConfig destination) throws JMSException { try { final DestinationInfo info = getDestinationInfo(destination); final TreeMap rval = new TreeMap(); rval.putAll(PropertyUtils.describe(info)); rval.remove("inboundStatistics"); rval.remove("outboundStatistics"); rval.put("inboundByteRate", new Long(info.getInboundStatistics().getByteRate())); rval.put("inboundMessageRate", new Long(info.getInboundStatistics().getMessageRate())); rval.put("inboundTotalBytes", new Long(info.getInboundStatistics().getTotalBytes())); rval.put("inboundTotalMessages", new Long(info.getInboundStatistics().getTotalMessages())); rval.put("outboundByteRate", new Long(info.getOutboundStatistics().getByteRate())); rval.put("outboundMessageRate", new Long(info.getOutboundStatistics().getMessageRate())); rval.put("outboundTotalBytes", new Long(info.getOutboundStatistics().getTotalBytes())); rval.put("outboundTotalMessages", new Long(info.getOutboundStatistics().getTotalMessages())); return rval; } catch (IllegalAccessException e) { throw new HermesException(e); } catch (InvocationTargetException e) { throw new HermesException(e); } catch (NoSuchMethodException e) { throw new HermesException(e); } } private DestinationInfo getDestinationInfo(final DestinationConfig dConfig) throws JMSException { try { if (dConfig.getDomain() == Domain.QUEUE.getId()) { return getAdmin().getQueue(getRealDestinationName(dConfig)); } else { return getAdmin().getTopic(getRealDestinationName(dConfig)); } } catch (TibjmsAdminException e) { throw new HermesException(e); } } private DestinationInfo getDestinationInfo(final Destination destination) throws JMSException { final String name = getHermes().getDestinationName(destination); try { if (destination instanceof Queue) { return getAdmin().getQueue(name); } else { return getAdmin().getTopic(name); } } catch (TibjmsAdminException e) { throw new HermesException(e); } } public int truncate(final DestinationConfig dConfig) throws JMSException { try { final int rval = getDepth(dConfig); if (dConfig.getDomain() == Domain.QUEUE.getId()) { getAdmin().purgeQueue(dConfig.getName()); } else { if (dConfig.isDurable()) { getAdmin().purgeDurable(dConfig.getClientID(), getHermes().getConnection().getClientID()); } else { getAdmin().purgeTopic(dConfig.getName()); } } return rval; } catch (TibjmsAdminException e) { throw new HermesException(e); } } public Collection discoverDestinationConfigs() throws JMSException { /* * As Tibco do not implement the browsing of their JNDI contexts, when the * connection factory is JNDI we use their admin API instead to get the * jndi names of queues/topics. If there is no JNDI name then it's not * bound anywhere. */ try { final Collection<DestinationConfig> rval = new ArrayList<DestinationConfig>(); boolean both = (getHermes().getConnectionFactory() instanceof TopicConnectionFactory) && (getHermes().getConnectionFactory() instanceof TopicConnectionFactory); if (!(getHermes().getConnectionFactory() instanceof TopicConnectionFactory) || both) { final QueueInfo[] qinfos = getAdmin().getQueues(); for (int i = 0; i < qinfos.length; i++) { if (getHermes().getConnectionFactory() instanceof JNDIConnectionFactory) { if (qinfos[i].getJNDINames() != null) { for (int j = 0; j < qinfos[i].getJNDINames().length; j++) { final DestinationConfig dConfig = HermesBrowser.getConfigDAO() .createDestinationConfig(); dConfig.setName(qinfos[i].getJNDINames()[j]); dConfig.setDomain(Domain.QUEUE.getId()); rval.add(dConfig); } } } else { final DestinationConfig dConfig = HermesBrowser.getConfigDAO().createDestinationConfig(); dConfig.setName(qinfos[i].getName()); dConfig.setDomain(Domain.QUEUE.getId()); rval.add(dConfig); } } } if (!(getHermes().getConnectionFactory() instanceof QueueConnectionFactory) || both) { final TopicInfo[] tinfos = getAdmin().getTopics(); for (int i = 0; i < tinfos.length; i++) { if (getHermes().getConnectionFactory() instanceof JNDIConnectionFactory) { if (tinfos[i].getJNDINames() != null) { for (int j = 0; j < tinfos[i].getJNDINames().length; j++) { final DestinationConfig dConfig = HermesBrowser.getConfigDAO() .createDestinationConfig(); dConfig.setName(tinfos[i].getJNDINames()[j]); dConfig.setDomain(Domain.TOPIC.getId()); rval.add(dConfig); rval.addAll(discoverDurableSubscriptions(tinfos[i].getName(), tinfos[i].getJNDINames()[j])); } } } else { final DestinationConfig dConfig = HermesBrowser.getConfigDAO().createDestinationConfig(); dConfig.setName(tinfos[i].getName()); dConfig.setDomain(Domain.TOPIC.getId()); rval.add(dConfig); rval.addAll(discoverDurableSubscriptions(tinfos[i].getName(), null)); } } } return rval; } catch (TibjmsAdminException e) { log.error(e.getMessage(), e); throw new HermesException(e); } } @Override protected Collection<DestinationConfig> discoverDurableSubscriptions(String topicName, String jndiName) throws JMSException { try { final Collection<DestinationConfig> rval = new ArrayList<DestinationConfig>(); final DurableInfo[] dInfos = getAdmin().getDurables(topicName); for (int j = 0; j < dInfos.length; j++) { DurableInfo dInfo = dInfos[j]; final DestinationConfig dConfig = HermesBrowser.getConfigDAO().createDestinationConfig(); dConfig.setDurable(true); dConfig.setName(jndiName == null ? dInfo.getTopicName() : jndiName); dConfig.setClientID(dInfo.getDurableName()); dConfig.setSelector(dInfo.getSelector()); dConfig.setDomain(Domain.TOPIC.getId()); rval.add(dConfig); } return rval; } catch (TibjmsAdminException e) { log.error(e.getMessage(), e); throw new HermesException(e); } } }