/*
* 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.jstl.fmt.LocalizationContext;
import javax.servlet.jsp.tagext.TagSupport;
import javax.servlet.jsp.tagext.TryCatchFinally;
import java.util.Locale;
/**
* Sets the i18n localization bundle for a context.
*/
public class BundleTag extends I18NSupport implements TryCatchFinally {
private static L10N L = new L10N(BundleTag.class);
private String _basename;
private String _prefix;
private Object _oldBundle;
private Object _oldPrefix;
/**
* Sets the basename.
*/
public void setBasename(String basename)
{
_basename = basename;
}
/**
* Sets a prefix for message keys.
*/
public void setPrefix(String prefix)
{
_prefix = prefix;
}
/**
* Process the tag.
*/
public int doStartTag()
throws JspException
{
PageContextImpl pc = (PageContextImpl) pageContext;
_oldBundle = pc.getAttribute("caucho.bundle");
_oldPrefix = pc.getAttribute("caucho.bundle.prefix");
LocalizationContext bundle = pc.getBundle(_basename);
Locale locale = bundle.getLocale();
if (locale != null)
setResponseLocale(pageContext, locale);
pc.setAttribute("caucho.bundle", bundle);
if (_prefix != null)
pc.setAttribute("caucho.bundle.prefix", _prefix);
else if (_oldPrefix != null)
pc.removeAttribute("caucho.bundle.prefix");
return EVAL_BODY_INCLUDE;
}
/**
* Handle the catch
*/
public void doCatch(Throwable t)
throws Throwable
{
throw t;
}
/**
* Handle the finaly
*/
public void doFinally()
{
if (_oldBundle == null)
pageContext.removeAttribute("caucho.bundle");
else
pageContext.setAttribute("caucho.bundle", _oldBundle);
if (_oldPrefix == null)
pageContext.removeAttribute("caucho.bundle.prefix");
else
pageContext.setAttribute("caucho.bundle.prefix", _oldPrefix);
}
public static Object setBundle(String baseName, PageContextImpl pc)
{
Object oldBundle = pc.getAttribute("caucho.bundle");
LocalizationContext bundle = pc.getBundle(baseName);
pc.setAttribute("caucho.bundle", bundle);
return oldBundle;
}
}