| /* |
| * 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 org.apache.uima.adapter.jms.activemq; |
| |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| import org.apache.activemq.broker.BrokerService; |
| import org.apache.uima.UIMAFramework; |
| import org.apache.uima.aae.UimaEEAdminContext; |
| import org.apache.uima.adapter.jms.JmsConstants; |
| import org.apache.uima.util.Level; |
| import org.springframework.context.ApplicationContext; |
| import org.springframework.context.ApplicationEvent; |
| import org.springframework.context.ApplicationListener; |
| import org.springframework.context.support.FileSystemXmlApplicationContext; |
| |
| public class UimaEEAdminSpringContext implements UimaEEAdminContext, ApplicationListener { |
| private static final Class CLASS_NAME = UimaEEAdminSpringContext.class; |
| |
| private FileSystemXmlApplicationContext springContainer = null; |
| |
| private BrokerService service; |
| |
| private boolean isShutdown; |
| |
| private ConcurrentHashMap listenerMap = new ConcurrentHashMap(); |
| |
| public UimaEEAdminSpringContext(FileSystemXmlApplicationContext aSpringContainer) { |
| springContainer = aSpringContainer; |
| String beanNames[] = springContainer |
| .getBeanNamesForType(org.apache.uima.adapter.jms.activemq.UimaDefaultMessageListenerContainer.class); |
| for (int i = 0; beanNames != null && i < beanNames.length; i++) { |
| try { |
| UimaDefaultMessageListenerContainer listenerContainer = ((UimaDefaultMessageListenerContainer) springContainer |
| .getBean(beanNames[i])); |
| ListenerEntry listenerEntry = new ListenerEntry(); |
| listenerEntry.setListenerContainer(listenerContainer); |
| listenerMap.put(listenerContainer.getDestinationName(), listenerEntry); |
| } catch (Exception e) { |
| if (UIMAFramework.getLogger(CLASS_NAME).isLoggable(Level.WARNING)) { |
| UIMAFramework.getLogger(CLASS_NAME).logrb(Level.WARNING, CLASS_NAME.getName(), |
| "UimaEEAdminSpringContext", JmsConstants.JMS_LOG_RESOURCE_BUNDLE, |
| "UIMAJMS_exception__WARNING", new Object[] { e }); |
| } |
| } |
| } |
| } |
| |
| public void setBroker(BrokerService aBrokerService) { |
| service = aBrokerService; |
| } |
| |
| public ApplicationContext getSpringContainer() { |
| return springContainer; |
| } |
| |
| public int getConcurrentConsumerCount(String anEndpointName) { |
| try { |
| if (anEndpointName != null && anEndpointName.trim().length() > 0 |
| && springContainer.isActive() && listenerMap.containsKey(anEndpointName)) { |
| ListenerEntry listenerEntry = null; |
| |
| listenerEntry = ((ListenerEntry) listenerMap.get(anEndpointName)); |
| if (listenerEntry != null && listenerEntry.isStopped() == false) { |
| UimaDefaultMessageListenerContainer listenerContainer = listenerEntry |
| .getListenerContainer(); |
| return listenerContainer.getConcurrentConsumers(); |
| } |
| } |
| } catch (Exception e) { |
| } |
| return -1; |
| } |
| |
| /** |
| * Stops a listener thread on a given endpoint |
| */ |
| public synchronized void stopListener(String anEndpointName) { |
| try { |
| if (anEndpointName != null && anEndpointName.trim().length() > 0 |
| && springContainer.isActive() && listenerMap.containsKey(anEndpointName)) { |
| ListenerEntry listenerEntry = null; |
| |
| listenerEntry = ((ListenerEntry) listenerMap.get(anEndpointName)); |
| if (listenerEntry != null && listenerEntry.isStopped() == false) { |
| listenerEntry.setStopped(true); |
| if (listenerMap.get(anEndpointName) != null) { |
| ListenerEntry entry = (ListenerEntry) listenerMap.get(anEndpointName); |
| if (entry != null) { |
| UimaDefaultMessageListenerContainer listenerContainer = entry.getListenerContainer(); |
| spinThreadForListenerShutdown(listenerContainer); |
| } |
| } |
| } |
| } |
| } catch (Exception e) { |
| } |
| } |
| |
| private void spinThreadForListenerShutdown( |
| final UimaDefaultMessageListenerContainer listenerContainer) { |
| // Spin a shutdown thread to terminate listener. The thread is needed due |
| // to Spring. |
| new Thread() { |
| public void run() { |
| try { |
| listenerContainer.setAutoStartup(false); |
| listenerContainer.setRecoveryInterval(0); |
| listenerContainer.shutdown(); |
| listenerContainer.destroy(); |
| String eName = listenerContainer.getEndpointName(); |
| if (eName != null) { |
| if (UIMAFramework.getLogger(CLASS_NAME).isLoggable(Level.INFO)) { |
| UIMAFramework.getLogger(CLASS_NAME).logrb(Level.INFO, this.getClass().getName(), |
| "spinThreadForListenerShutdown.run()", JmsConstants.JMS_LOG_RESOURCE_BUNDLE, |
| "UIMAJMS_stop_listener__INFO", new Object[] { eName }); |
| } |
| } |
| } catch (Exception e) { |
| if (UIMAFramework.getLogger(CLASS_NAME).isLoggable(Level.WARNING)) { |
| UIMAFramework.getLogger(CLASS_NAME).logrb(Level.WARNING, CLASS_NAME.getName(), |
| "run", JmsConstants.JMS_LOG_RESOURCE_BUNDLE, |
| "UIMAJMS_exception__WARNING", new Object[] { JmsConstants.threadName(), e }); |
| } |
| } |
| } |
| }.start(); |
| } |
| |
| public void onApplicationEvent(ApplicationEvent anEvent) { |
| shutdown(); |
| } |
| |
| /** |
| * Stops the Spring Container |
| */ |
| public void shutdown() { |
| if (springContainer.isActive()) { |
| isShutdown = true; |
| // Spin a thread so that the Spring container can shut itself down |
| new Thread("Spring Container Shutdown Thread") { |
| public void run() { |
| try { |
| System.out.println("Destroying Spring Container"); |
| springContainer.destroy(); |
| springContainer = null; |
| } catch (Exception e) { |
| if (UIMAFramework.getLogger(CLASS_NAME).isLoggable(Level.WARNING)) { |
| UIMAFramework.getLogger(CLASS_NAME).logrb(Level.WARNING, CLASS_NAME.getName(), |
| "shutdown", JmsConstants.JMS_LOG_RESOURCE_BUNDLE, |
| "UIMAJMS_exception__WARNING", new Object[] { JmsConstants.threadName(), e }); |
| } |
| } |
| } |
| }.start(); |
| } |
| listenerMap.clear(); |
| } |
| |
| public boolean isShutdown() { |
| return isShutdown; |
| } |
| |
| protected static class ListenerEntry { |
| private boolean stopped = false; |
| |
| private UimaDefaultMessageListenerContainer listenerContainer = null; |
| |
| protected UimaDefaultMessageListenerContainer getListenerContainer() { |
| return listenerContainer; |
| } |
| |
| protected void setListenerContainer(UimaDefaultMessageListenerContainer listenerContainer) { |
| this.listenerContainer = listenerContainer; |
| } |
| |
| protected boolean isStopped() { |
| return stopped; |
| } |
| |
| protected void setStopped(boolean stopped) { |
| this.stopped = stopped; |
| } |
| |
| } |
| |
| } |