craigmcc 2004/03/07 16:42:15
Added: contrib/struts-faces/src/java/org/apache/struts/faces/taglib
LoadMessagesTag.java
Log:
Forgot to add one source file.
Revision Changes Path
1.1
jakarta-struts/contrib/struts-faces/src/java/org/apache/struts/faces/taglib/LoadMessagesTag.java
Index: LoadMessagesTag.java
===================================================================
/*
* $Header:
/home/cvs/jakarta-struts/contrib/struts-faces/src/java/org/apache/struts/faces/taglib/LoadMessagesTag.java,v
1.1 2004/03/08 00:42:15 craigmcc Exp $
* $Revision: 1.1 $
* $Date: 2004/03/08 00:42:15 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2002 The Apache Software Foundation. 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. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Struts", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.struts.faces.taglib;
import java.util.Locale;
import javax.faces.component.UIViewRoot;
import javax.faces.context.FacesContext;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.tagext.TagSupport;
import org.apache.struts.Globals;
import org.apache.struts.faces.util.MessagesMap;
import org.apache.struts.util.MessageResources;
/**
* <p>Tag that exposes a specified <code>MessageResources</code> instance
* as <code>Map</code>, so that the embedded messages may be retrieved via
* value binding expressions.</p>
*/
public class LoadMessagesTag extends TagSupport {
// ---------------------------------------------------------- Tag Attributes
/**
* <p>The name of the <code>MessageResources</code> to expose, or
* <code>null</code> for the default <code>MessageResources</code>
* for this application module.</p>
*/
private String messages = null;
public void setMessages(String messages) {
this.messages = messages;
}
/**
* <p>The request attribute key under which a <code>Map</code>
* will be exposed.</p>
*/
private String var = null;
public void setVar(String var) {
this.var = var;
}
// ------------------------------------------------------------- Tag Methods
/**
* <p>Expose a <code>Map</code> wrapping the specified
* <code>MessageResources</code> instance, for the <code>Locale</code>
* specified in the view root component of the current view.</p>
*/
public int doStartTag() {
// Acquire the Locale to be wrapped
Locale locale =
FacesContext.getCurrentInstance().getViewRoot().getLocale();
// Acquire the MessageResources to be wrapped
MessageResources messages = null;
if (this.messages == null) {
messages = (MessageResources)
pageContext.getAttribute(Globals.MESSAGES_KEY,
PageContext.REQUEST_SCOPE);
if (messages == null) {
messages = (MessageResources)
pageContext.getAttribute(Globals.MESSAGES_KEY,
PageContext.APPLICATION_SCOPE);
}
} else {
messages = (MessageResources)
pageContext.getAttribute(this.messages,
PageContext.APPLICATION_SCOPE);
}
// Expose a Map instance under the specified request attribute key
pageContext.setAttribute(var,
new MessagesMap(messages, locale),
PageContext.REQUEST_SCOPE);
// Skip the body of this tag (if any)
return (SKIP_BODY);
}
/**
* <p>Release any resources allocated by this tag instance.</p>
*/
public void release() {
this.messages = null;
this.var = null;
}
}
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