package com.googlecode.struts2yuiplugin.components;



import org.apache.struts2.views.annotations.StrutsTagAttribute;

import org.apache.commons.logging.Log;

import org.apache.commons.logging.LogFactory;

import com.opensymphony.xwork2.util.ValueStack;



import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import java.io.Writer;



/**

 * A specialization of the YUI Bean that handles open and closing tag templates

 *

 */

public abstract class ClosingYUIBean extends YUIBean {



    private static final Log LOG = LogFactory.getLog(ClosingYUIBean.class);



    public ClosingYUIBean(ValueStack stack, HttpServletRequest request, HttpServletResponse response) {

        super(stack, request, response);

    }



    private String openTemplate;



    public abstract String getDefaultOpenTemplate();



    @StrutsTagAttribute(description="Set template to use for opening the rendered html.")

    public void setOpenTemplate(String openTemplate) {

        this.openTemplate = openTemplate;

    }



    public boolean start(Writer writer) {

        boolean result = super.start(writer);

        try {

            evaluateParams();



            mergeTemplate(writer, buildTemplateName(openTemplate, getDefaultOpenTemplate()));

        } catch (Exception e) {

            LOG.error("Could not open template", e);

            e.printStackTrace();

        }



        return result;

    }

}