/*
* [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 javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.PageContext;
import org.apache.struts2.views.jsp.TagUtils;
import com.github.dandelion.core.utils.StringUtils;
import com.github.dandelion.datatables.core.i18n.AbstractMessageResolver;
import com.github.dandelion.datatables.core.i18n.MessageResolver;
import com.opensymphony.xwork2.TextProvider;
import com.opensymphony.xwork2.ognl.OgnlValueStack;
/**
* Struts2 implementation of the {@link MessageResolver}.
*
* @author Thibault Duchateau
* @since 0.9.1
*/
public class Struts2MessageResolver extends AbstractMessageResolver {
public Struts2MessageResolver(HttpServletRequest request) {
super(request);
}
/**
* {@inheritDoc}
*/
@Override
public String getResource(String messageKey, String defaultValue, Object... params) {
String message = null;
PageContext pageContext = null;
// I'm so ashamed about that...
pageContext = (PageContext) params[0];
// Both title and titleKey attributes are not used
if (messageKey == null || StringUtils.isBlank(messageKey) && StringUtils.isNotBlank(defaultValue)) {
message = StringUtils.capitalize(defaultValue);
}
// the titleKey attribute is used
else {
OgnlValueStack stack = (OgnlValueStack) TagUtils.getStack(pageContext);
for (Object o : stack.getRoot()) {
if (o instanceof TextProvider) {
TextProvider tp = (TextProvider) o;
message = tp.getText(messageKey, UNDEFINED_KEY + messageKey + UNDEFINED_KEY);
break;
}
}
}
return message;
}
}