/*
 * eXist Open Source Native XML Database
 * Copyright (C) 2003 The eXist Project
 * http://exist-db.org
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *  
 * This program 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.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *  
 *  $Id$
 */
package org.exist.xquery;

import org.exist.dom.NodeProxy;
import org.exist.dom.QName;
import org.exist.xquery.util.ExpressionDumper;
import org.exist.xquery.value.Type;
import org.w3c.dom.Node;

import javax.xml.stream.XMLStreamReader;

/**
 * The class <code>AnyNodeTest</code>
 *
 * @author Wolfgang Meier (wolfgang@exist-db.org)
 *
 */
public class AnyNodeTest implements NodeTest {
	
	/* (non-Javadoc)
	 * @see org.exist.xquery.NodeTest#getName()
	 */
	public QName getName() {
		return null;
	}

	/* (non-Javadoc)
	 * @see org.exist.xquery.NodeTest#isWildcardTest()
	 */
	public boolean isWildcardTest() {
		return true;
	}

	/* (non-Javadoc)
	 * @see org.exist.xquery.NodeTest#matches(org.w3c.dom.Node)
	 */
	public boolean matches(Node node) {
        return (node.getNodeType() != Node.ATTRIBUTE_NODE);
    }

	/* (non-Javadoc)
	 * @see org.exist.xquery.NodeTest#matches(org.exist.dom.NodeProxy)
	 */
	public boolean matches(NodeProxy proxy) {
	    int type = proxy.getType();
		if (type == Type.ITEM || type == Type.NODE) {		
			if (proxy.getNodeType() != NodeProxy.UNKNOWN_NODE_TYPE)
				return matches(proxy.getNode());
			return proxy.getNodeType() != Node.ATTRIBUTE_NODE;
		} else if (type == Type.ATTRIBUTE &&
			   proxy.getNodeType() == Node.ATTRIBUTE_NODE) {
		    return true;
		} else {
		    return type != Node.ATTRIBUTE_NODE;
		}
	}

    public boolean matches(XMLStreamReader reader) {
        return reader.getEventType() != XMLStreamReader.ATTRIBUTE;
    }

    public void dump(ExpressionDumper dumper) {
        if(dumper.verbosity() > 1) {            
            dumper.display("node()"); 
        }
    }    

	/* (non-Javadoc)
	 * @see java.lang.Object#toString()
	 */
	public String toString() {
		return "node()";
	}

    /* (non-Javadoc)
     * @see org.exist.xquery.NodeTest#setType(int)
     */
    public void setType(int nodeType) {
    }
    
    public int getType() {
        return Type.NODE;
    }
}