/*
* Copyright 2008-2009 the original 赵永春(zyc@hasor.net).
*
* 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.jstl.taglib;
import javax.servlet.ServletContext;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.TagSupport;
import net.hasor.core.AppContext;
import net.hasor.web.startup.RuntimeListener;
/**
*
* @version : 2013-12-23
* @author 赵永春(zyc@hasor.net)
*/
public abstract class AbstractHasorTag extends TagSupport {
private static final long serialVersionUID = 954597728447849929L;
//
protected AppContext getAppContext() {
ServletContext sc = this.pageContext.getServletContext();
AppContext appContext = (AppContext) sc.getAttribute(RuntimeListener.AppContextName);
if (appContext != null) {
return appContext;
}
throw new NullPointerException("AppContext is undefined.");
}
//
@Override
public abstract int doStartTag() throws JspException;
@Override
public abstract void release();
}