cmsjsptagwplabel.java

java 编写的程序

/*
* File   : $Source: /usr/local/cvs/opencms/src/com/opencms/flex/jsp/Attic/CmsJspTagWpLabel.java,v $
* Date   : $Date: 2002/05/10 21:07:30 $
* Version: $Revision: 1.1.2.1 $
*
* This library is part of OpenCms -
* the Open Source Content Mananagement System
*
* Copyright (C) 2002  The OpenCms Group
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* Lesser General Public License for more details.
*
* For further information about OpenCms, please see the
* OpenCms Website: http://www.opencms.org
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/


package com.opencms.flex.jsp;

/**
 * This Tag provides access to the labels stored in the
 * language files of the OpenCms workplace.
 *
 * @author  Alexander Kandzior ([e-mail])
 * @version $Revision: 1.1.2.1 $
 */
public class CmsJspTagWpLabel extends javax.servlet.jsp.tagext.BodyTagSupport implements I_CmsJspConstants {
    
    public int doAfterBody() throws javax.servlet.jsp.JspException {
        
        javax.servlet.ServletRequest req = pageContext.getRequest();
        javax.servlet.ServletResponse res = pageContext.getResponse();
        
        // This will always be true if the page is called through OpenCms 
        if ((req instanceof com.opencms.flex.cache.CmsFlexRequest) &&
            (res instanceof com.opencms.flex.cache.CmsFlexResponse)) {

            com.opencms.flex.cache.CmsFlexRequest c_req = (com.opencms.flex.cache.CmsFlexRequest)req;
            com.opencms.flex.cache.CmsFlexResponse c_res = (com.opencms.flex.cache.CmsFlexResponse)res;   
                
            try {       
                
                // Get link-string from the body and reset body 
                javax.servlet.jsp.tagext.BodyContent body = this.getBodyContent();
                String label = body.getString();            
                body.clearBody();  
                
                // Get Cms Object
                com.opencms.file.CmsObject cms = c_req.getCmsObject();
                
                com.opencms.workplace.CmsXmlWpLabelDefFile labeldeffile;
                com.opencms.workplace.CmsXmlLanguageFile langfile;
                
                Object o = pageContext.getAttribute(this.C_JSP_ATTR_TAGLABEL_DEF);
                if (o == null) {                                
                    // Get OpenCms Workplace label
                    labeldeffile = new com.opencms.workplace.CmsXmlWpLabelDefFile(cms, "/system/workplace/templates/" + com.opencms.workplace.I_CmsWpConstants.C_LABELTEMPLATE);
                    langfile = new com.opencms.workplace.CmsXmlLanguageFile(cms);
                    
                    pageContext.setAttribute(this.C_JSP_ATTR_TAGLABEL_DEF, labeldeffile);
                    pageContext.setAttribute(this.C_JSP_ATTR_TAGLABEL_LANG, langfile);
                } else {
                    labeldeffile = (com.opencms.workplace.CmsXmlWpLabelDefFile)o;
                    langfile = (com.opencms.workplace.CmsXmlLanguageFile)pageContext.getAttribute(this.C_JSP_ATTR_TAGLABEL_LANG);
                }
                
                String value = langfile.getLanguageValue(label);
                String result = labeldeffile.getLabel(value);
          
                this.getPreviousOut().print(result);       
                 
            } catch (Exception ex) {
                System.err.println("Error in Jsp 'label' tag processing: " + ex);
                System.err.println(com.opencms.util.Utils.getStackTrace(ex));
                throw new javax.servlet.jsp.JspException(ex);
            }            
        }
        return SKIP_BODY;
    }

}