componenttagsupport.java

struts 2 核心包 的源码 有错误是难免的

// Decompiled by Jad v1.5.8e2. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://kpdus.tripod.com/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi space 
// Source File Name:   ComponentTagSupport.java

package org.apache.struts2.views.jsp;

import com.opensymphony.xwork2.inject.Container;
import com.opensymphony.xwork2.util.ValueStack;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.PageContext;
import org.apache.struts2.components.Component;
import org.apache.struts2.dispatcher.Dispatcher;

// Referenced classes of package org.apache.struts2.views.jsp:
//			StrutsBodyTagSupport

public abstract class ComponentTagSupport extends StrutsBodyTagSupport
{

	protected Component component;

	public ComponentTagSupport()
	{
	}

	public abstract Component getBean(ValueStack valuestack, HttpServletRequest httpservletrequest, HttpServletResponse httpservletresponse);

	public int doEndTag()
		throws JspException
	{
		component.end(pageContext.getOut(), getBody());
		component = null;
		return 6;
	}

	public int doStartTag()
		throws JspException
	{
		component = getBean(getStack(), (HttpServletRequest)pageContext.getRequest(), (HttpServletResponse)pageContext.getResponse());
		Container container = Dispatcher.getInstance().getContainer();
		container.inject(component);
		populateParams();
		boolean evalBody = component.start(pageContext.getOut());
		if (evalBody)
			return component.usesBody() ? 2 : 1;
		else
			return 0;
	}

	protected void populateParams()
	{
		component.setId(id);
	}

	public Component getComponent()
	{
		return component;
	}
}