//========================================================================
   //Copyright 2004-2008 Mort Bay Consulting Pty. Ltd.
   //------------------------------------------------------------------------
   //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 com.acme;
  
  import java.text.SimpleDateFormat;
  import java.util.Date;
  import java.util.TimeZone;
  
  import javax.servlet.jsp.JspException;
  import javax.servlet.jsp.JspTagException;
  import javax.servlet.jsp.PageContext;
  import javax.servlet.jsp.tagext.BodyContent;
  import javax.servlet.jsp.tagext.BodyTagSupport;
  import javax.servlet.jsp.tagext.Tag;
  
  public class DateTag extends BodyTagSupport
  {
      Tag parent;
      BodyContent body;
      String tz="GMT";
  
      public void setParent(Tag parent) {this.parent=parent;}
      public Tag getParent() {return parent;}
      public void setBodyContent(BodyContent content) {body=content;}
      public void setPageContext(PageContext pageContext) {}
  
      public void setTz(String value) {tz=value;}
  
      public int doStartTag() throws JspException {return EVAL_BODY_TAG;}
      
      public int doEndTag() throws JspException {return EVAL_PAGE;}
  
      public void doInitBody() throws JspException {}
  
      public int doAfterBody() throws JspException {
  	try
  	{
              SimpleDateFormat format = new SimpleDateFormat(body.getString());
              format.setTimeZone(TimeZone.getTimeZone(tz));
  	    body.getEnclosingWriter().write(format.format(new Date()));
  	    return SKIP_BODY;
  	}
  	catch (Exception ex) {
              ex.printStackTrace();
              throw new JspTagException(ex.toString());
  	}
      }
  
      public void release()
      {
  	body=null;
      }
  }