// Copyright 2009 Google Inc. All Rights Reserved. // // 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 com.google.enterprise.connector.listener; import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationEvent; import org.springframework.context.ApplicationListener; import java.util.ArrayList; import java.util.List; import java.util.logging.Logger; /** * Used for testing adding an {@link ApplicationListener} to the * {@link ApplicationContext}. */ public class TestListener implements ApplicationListener { private static final Logger LOGGER = Logger.getLogger(TestListener.class.getName()); private String listenerName = "TestListener"; private List<ApplicationEvent> eventQueue = new ArrayList<ApplicationEvent>(); public String getListenerName() { return listenerName; } public void setListenerName(String listenerName) { this.listenerName = listenerName; } /** * Logs the given event and stores it in an event queue. */ public void onApplicationEvent(ApplicationEvent event) { LOGGER.info(listenerName + ": Entering onApplicationEvent..."); LOGGER.info(listenerName + ": Event=" + event); synchronized (eventQueue) { eventQueue.add(event); } LOGGER.info(listenerName + ": ...exiting onApplicationEvent."); } /** * Pulls all the events out of the event queue and returns them in a list. * Has side effect of clearing out the current event queue. * * @return a List containing all the current events in the event queue. */ public List<ApplicationEvent> pullEventsFromQueue() { List<ApplicationEvent> result = new ArrayList<ApplicationEvent>(); synchronized (eventQueue) { for (ApplicationEvent event : eventQueue) { result.add(event); } eventQueue.clear(); } return result; } }