org.jasig.springframework.context.BeanThatListens.java Source code

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Here is the source code for org.jasig.springframework.context.BeanThatListens.java

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/*
 * Copyright 2002-2007 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.jasig.springframework.context;

import java.util.Map;

import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;

/**
 * A stub {@link ApplicationListener}.
 *
 * @author Thomas Risberg
 * @author Juergen Hoeller
 */
public class BeanThatListens implements ApplicationListener {

    private BeanThatBroadcasts beanThatBroadcasts;

    private int eventCount;

    public BeanThatListens() {
    }

    public BeanThatListens(BeanThatBroadcasts beanThatBroadcasts) {
        this.beanThatBroadcasts = beanThatBroadcasts;
        Map beans = beanThatBroadcasts.applicationContext.getBeansOfType(BeanThatListens.class);
        if (!beans.isEmpty()) {
            throw new IllegalStateException("Shouldn't have found any BeanThatListens instances");
        }
    }

    public void onApplicationEvent(ApplicationEvent event) {
        eventCount++;
        if (beanThatBroadcasts != null) {
            beanThatBroadcasts.receivedCount++;
        }
    }

    public int getEventCount() {
        return eventCount;
    }

    public void zero() {
        eventCount = 0;
    }

}