/*
* Copyright 2008-2009 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 net.hasor.web.listener;
import net.hasor.core.AppContext;
import net.hasor.core.BindInfo;
import javax.servlet.http.HttpSessionEvent;
import javax.servlet.http.HttpSessionListener;
/**
*
* @version : 2013-4-11
* @author 赵永春 (zyc@hasor.net)
*/
public class HttpSessionListenerDefinition implements HttpSessionListener {
private BindInfo<? extends HttpSessionListener> listenerRegister = null;
private HttpSessionListener listenerInstance = null;
private AppContext appContext = null;
//
public HttpSessionListenerDefinition(final BindInfo<? extends HttpSessionListener> listenerRegister) {
this.listenerRegister = listenerRegister;
}
//
protected HttpSessionListener getTarget() {
if (this.listenerInstance == null) {
this.listenerInstance = this.appContext.getInstance(this.listenerRegister);
}
return this.listenerInstance;
}
@Override
public String toString() {
return String.format("type %s listenerKey=%s", HttpSessionListenerDefinition.class, this.listenerInstance);
}
/**/
public void init(final AppContext appContext) {
this.appContext = appContext;
this.getTarget();
}
/*--------------------------------------------------------------------------------------------------------*/
/**/
public void sessionCreated(final HttpSessionEvent event) {
HttpSessionListener httpSessionListener = this.getTarget();
if (httpSessionListener != null) {
httpSessionListener.sessionCreated(event);
}
}
/**/
public void sessionDestroyed(final HttpSessionEvent event) {
HttpSessionListener httpSessionListener = this.getTarget();
if (httpSessionListener != null) {
httpSessionListener.sessionDestroyed(event);
}
}
}