/*
* [The "BSD licence"]
* Copyright (c) 2012 Dandelion
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Dandelion nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.github.dandelion.datatables.extras.struts2.i18n;
import java.util.Locale;
import javax.servlet.http.HttpServletRequest;
import com.github.dandelion.datatables.core.i18n.LocaleResolver;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.LocaleProvider;
import com.opensymphony.xwork2.ognl.OgnlValueStack;
/**
* <p>
* Struts2 implementation of the {@link LocaleResolver}.
*
* @author Thibault Duchateau
* @since 0.9.1
*/
public class Struts2LocaleResolver implements LocaleResolver {
/**
* {@inheritDoc}
*/
@Override
public Locale resolveLocale(HttpServletRequest request) {
Locale result = null;
OgnlValueStack stack = (OgnlValueStack) ActionContext.getContext().getValueStack();
for (Object o : stack.getRoot()) {
if (o instanceof LocaleProvider) {
LocaleProvider lp = (LocaleProvider) o;
result = lp.getLocale();
break;
}
}
// Falling back to the request locale
if (result == null) {
result = request.getLocale();
}
return result;
}
}