/*
* Copyright 2007 the original author or authors.
*
* 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 org.springmodules.xt.model.event.collector;
import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.Queue;
import org.springframework.context.ApplicationEvent;
/**
* {@link org.springmodules.xt.model.event.ApplicationCollector} implementation that
* simply collects events in a queue.
* <br>
* <br>
* This class is <b>not</b> thread safe.
*
* @author Sergio Bossa
*/
public class SimpleCollector implements ApplicationCollector {
private final Queue<ApplicationEvent> queue = new LinkedList<ApplicationEvent>();
public void onApplicationEvent(ApplicationEvent event) {
this.queue.offer(event);
}
public ApplicationEvent pollEvent() {
return this.queue.poll();
}
public List<ApplicationEvent> getEvents() {
return Collections.unmodifiableList(new ArrayList(this.queue));
}
public void clear() {
this.queue.clear();
}
}