/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.xsl.fun;
import com.caucho.xpath.Expr;
import com.caucho.xpath.ExprEnvironment;
import com.caucho.xpath.XPathException;
import com.caucho.xpath.XPathFun;
import com.caucho.xpath.pattern.AbstractPattern;
import org.w3c.dom.Document;
import org.w3c.dom.DocumentType;
import org.w3c.dom.Entity;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import java.util.ArrayList;
/**
* The unparsed-entity(...) function.
*/
public class UnparsedEntityFun extends XPathFun {
/**
* Evaluate the function.
*
* @param pattern The context pattern.
* @param args The evaluated arguments
*/
public Object eval(Node node, ExprEnvironment env,
AbstractPattern pattern, ArrayList args)
throws XPathException
{
if (args.size() < 1)
return "";
String name = Expr.toString(args.get(0));
Document doc = node.getOwnerDocument();
DocumentType dtd = doc.getDoctype();
NamedNodeMap map = dtd.getEntities();
Entity entity = (Entity) map.getNamedItem(name);
if (entity == null)
return "";
else if (entity.getSystemId() != null && ! entity.getSystemId().equals(""))
return entity.getSystemId();
else
return entity.getPublicId();
}
}