/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.jstl.rt;
import com.caucho.jsp.PageContextImpl;
import com.caucho.util.L10N;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.TagSupport;
import javax.servlet.jsp.tagext.TryCatchFinally;
import java.util.TimeZone;
/**
* Sets the i18n localization bundle for a context.
*/
public class FmtTimeZoneTag extends TagSupport implements TryCatchFinally {
private static L10N L = new L10N(FmtTimeZoneTag.class);
private Object _value;
private Object _oldTimeZone;
/**
* Sets the JSP-EL expression for the basename.
*/
public void setValue(Object value)
{
_value = value;
}
/**
* Process the tag.
*/
public int doStartTag()
throws JspException
{
PageContextImpl pc = (PageContextImpl) pageContext;
_oldTimeZone = pc.getAttribute("com.caucho.time-zone");
Object valueObj = _value;
TimeZone timeZone = null;
if (valueObj instanceof TimeZone) {
timeZone = (TimeZone) valueObj;
}
else if (valueObj instanceof String) {
String string = (String) valueObj;
string = string.trim();
if (string.equals(""))
timeZone = TimeZone.getTimeZone("GMT");
else
timeZone = TimeZone.getTimeZone(string);
}
else
timeZone = TimeZone.getTimeZone("GMT");
pc.setAttribute("com.caucho.time-zone", timeZone);
return EVAL_BODY_INCLUDE;
}
/**
* Handle the catch
*/
public void doCatch(Throwable t)
throws Throwable
{
throw t;
}
/**
* Handle the finaly
*/
public void doFinally()
{
if (_oldTimeZone == null)
pageContext.removeAttribute("com.caucho.time-zone");
else
pageContext.setAttribute("com.caucho.time-zone", _oldTimeZone);
}
}