clistsearchqueryvaluetag.java

java 写的一个新闻发布系统

package org.jahia.taglibs.form.containerlistsearch;


import java.io.*;
import java.util.*;

import javax.servlet.*;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;

import org.jahia.data.JahiaData;
import org.jahia.data.containers.*;
import org.jahia.exceptions.JahiaException;
import org.jahia.utils.JahiaConsole;
import org.jahia.services.search.JahiaSearchConstant;

import org.jahia.taglibs.container.*;


/**
 * Return the container list search query value if any.
 * This is the value of the parameter named "clistsquery_" + containerList name;
 *
 * @author Khue Nguyen <a href="mailto:[e-mail]">[e-mail]</a>
 */
public class CListSearchQueryValueTag extends BodyTagSupport {
	
	private static final String CLASS_NAME = CListSearchQueryValueTag.class.getName();
		
    public boolean isDeclarationPass() {
        // gets the current container list
        ContainerListTag cListTag = (ContainerListTag) getParent();
        if (cListTag == null) {
            return false;
        } else {
            return cListTag.isDeclarationPass();
        }
    }

    public int doStartTag() {

        ServletRequest request = pageContext.getRequest();

        ContainerListTag cListTag = (ContainerListTag) getParent();
        if (cListTag.isDeclarationPass()) {
            // JahiaConsole.println("ContainerTag.doStartTag",
            //                     cListTag.getName() + " : Declaration Pass Beginning...");
        } else {
            JahiaContainerList containerList = cListTag.getContainerList();
            if (containerList == null)
                return SKIP_BODY;

			try {
				JspWriter out = pageContext.getOut();
				// get back container list search query
				String query = request.getParameter( JahiaSearchConstant.CLIST_SEARCHQUERY_INPUT_PREFIX 
													 + containerList.getDefinition().getName() );
				if ( query == null )
					query = "";
	         	out.print(query);
	         	return SKIP_BODY;
	        } catch (IOException ioe) {
	            JahiaConsole.println(CLASS_NAME+"doStartTag", ioe.toString());
	        } catch (JahiaException je) {
	            JahiaConsole.println(CLASS_NAME+"doStartTag", je.toString());
			}
        }
        return SKIP_BODY;
    }

}