tstamptag.java

来自「jakarta-taglibs」· Java 代码 · 共 73 行

/*
 * Copyright 1999,2004 The Apache Software Foundation.
 * 
 * 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 org.apache.taglibs.gnat;

import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
import java.util.*;
import java.text.SimpleDateFormat;

/**
 * Sets String variables named TSTAMP, DSTAMP and TODAY.
 *
 * @author [e-mail]
 * @author [e-mail]
 * @author [e-mail]
 */

public class tstampTag extends TagSupport
{
    public tstampTag()
    {
        super();
    }
    
    Date d = null;
    private SimpleDateFormat dstamp = null;
    private SimpleDateFormat tstamp = null;
    private SimpleDateFormat today = null;
    private ResourceBundle gnatRB = ListResourceBundle.getBundle("org.apache.taglibs.gnat.util.GnatTagStrings");
    private ResourceBundle gnatERB = ListResourceBundle.getBundle("org.apache.taglibs.gnat.util.GnatExceptionStrings");
    
    public int doStartTag() 
    {
        return SKIP_BODY;
    }

    public int doEndTag() throws JspTagException
    {
        d = new Date();
        
        try 
        {
            dstamp = new SimpleDateFormat ("yyyyMMdd");
            pageContext.setAttribute("DSTAMP", dstamp.format(d));
 
            tstamp = new SimpleDateFormat ("HHmm");
            pageContext.setAttribute("TSTAMP", tstamp.format(d));
 
            today  = new SimpleDateFormat ("MMMM d yyyy", Locale.US);
            pageContext.setAttribute("TODAY", today.format(d));
        } 
        catch (Exception e) 
        {
            throw new JspTagException(gnatRB.getString("tstamp.tag") +": "+e.getMessage());
        }
        return EVAL_PAGE;
    }
}