/* ===============================================================================
*
* Part of the InfoGlue Content Management Platform (www.infoglue.org)
*
* ===============================================================================
*
* Copyright (C)
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License version 2, as published by the
* Free Software Foundation. See the file LICENSE.html for more information.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY, including the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc. / 59 Temple
* Place, Suite 330 / Boston, MA 02111-1307 / USA.
*
* ===============================================================================
*/
package org.infoglue.deliver.taglib.common;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspTagException;
import org.infoglue.deliver.taglib.AbstractTag;
/**
* This class implements the <common:portletAttribute> tag, which adds an attribute
* to the attributes of the parent portlet tag.
*
* Note! This tag must have a <common:portlet> ancestor.
*/
public class PortletAttributeTag extends AbstractTag
{
/**
* The universal version identifier.
*/
private static final long serialVersionUID = 4482006814634520239L;
/**
* The name of the parameter.
*/
private String name;
/**
* The value of the parameter.
*/
private Object value;
private String scope = "attribute";
/**
* Default constructor.
*/
public PortletAttributeTag()
{
super();
}
/**
* Adds an attribute with the specified name and value to the attributes
* of the parent tag.
*
* @return indication of whether to continue evaluating the JSP page.
* @throws JspException if an error occurred while processing this tag.
*/
public int doEndTag() throws JspException
{
addAttribute();
name = null;
value = null;
scope = "attribute";
return EVAL_PAGE;
}
/**
* Adds the attribute to the ancestor tag.
*
* @throws JspException if the ancestor tag isn't a portlet tag.
*/
protected void addAttribute() throws JspException
{
PortletTag portletParent = (PortletTag) findAncestorWithClass(this, PortletTag.class);
if(portletParent == null)
{
throw new JspTagException("PortletTag must either have a portletTag ancestor.");
}
if(portletParent != null)
((PortletTag) portletParent).addAttribute(name, value, scope);
}
/**
* Sets the name attribute.
*
* @param name the name to use.
* @throws JspException if an error occurs while evaluating name parameter.
*/
public void setName(final String name) throws JspException
{
this.name = evaluateString("portletAttribute", "name", name);
}
/**
* Sets the value attribute.
*
* @param value the value to use.
* @throws JspException if an error occurs while evaluating value parameter.
*/
public void setValue(final String value) throws JspException
{
this.value = evaluate("portletAttribute", "value", value, Object.class);
}
/**
* Sets the value attribute.
*
* @param value the value to use.
* @throws JspException if an error occurs while evaluating value parameter.
*/
public void setValueObject(final Object value) throws JspException
{
this.value = value;
}
/**
* Sets the value attribute.
*
* @param value the value to use.
* @throws JspException if an error occurs while evaluating value parameter.
*/
public void setScope(final String scope) throws JspException
{
this.scope = evaluateString("portletAttribute", "scope", scope);
}
}