/*
* #!
* Ontopia Navigator
* #-
* Copyright (C) 2001 - 2013 The Ontopia Project
* #-
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* !#
*/
package net.ontopia.topicmaps.nav2.taglibs.framework;
import javax.servlet.jsp.JspTagException;
import javax.servlet.jsp.tagext.TagSupport;
import net.ontopia.topicmaps.nav2.utils.FrameworkUtils;
/**
* INTERNAL: Framework related tag for checking if a valid user object
* exists in the session scope, otherwise creates a new one.
*
* @see net.ontopia.topicmaps.nav2.core.UserIF
*/
public class CheckUserTag extends TagSupport {
/**
* Process the start tag for this instance.
*/
public int doStartTag() throws JspTagException {
// ensure that valid user object exists, otherwise create new one
FrameworkUtils.getUser(pageContext);
// empty tag has not to eval anything
return SKIP_BODY;
}
}