/*
 * $Header$
 * $Revision: 1128 $
 * $Date: 2006-02-05 22:49:04 +0100 (Sun, 05 Feb 2006) $
 *
 * ====================================================================
 *
 * Copyright 2000-2002 bob mcwhirter & James Strachan.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 
 *   * 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.
 * 
 *   * Neither the name of the Jaxen Project nor the names of its
 *     contributors may be used to endorse or promote products derived 
 *     from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS 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 COPYRIGHT OWNER
 * OR 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 Jaxen Project and was originally 
 * created by bob mcwhirter <bob@werken.com> and 
 * James Strachan <jstrachan@apache.org>.  For more information on the 
 * Jaxen Project, please see <http://www.jaxen.org/>.
 * 
 * $Id: Dom4jDemo.java 1128 2006-02-05 21:49:04Z elharo $
 */


import org.dom4j.Document;
import org.dom4j.Node;
import org.dom4j.io.SAXReader;

import org.jaxen.XPath;
import org.jaxen.XPathSyntaxException;
import org.jaxen.JaxenException;

import org.jaxen.dom4j.Dom4jXPath;

import java.util.List;
import java.util.Iterator;

public class Dom4jDemo 
{
    public static void main(String[] args)
    {
        if ( args.length != 2 )
        {
            System.err.println("usage: Dom4jDemo <document url> <xpath expr>");
            System.exit( 1 );
        }

        try
        {
            SAXReader reader = new SAXReader();
            
            Document doc = reader.read( args[0] );
            
            XPath xpath = new Dom4jXPath( args[1] );
            
            List results = xpath.selectNodes( doc );

            Iterator resultIter = results.iterator();
            
            System.out.println("Document :: " + args[0] );
            System.out.println("   XPath :: " + args[1] );
            System.out.println("");
            System.out.println("Results" );
            System.out.println("----------------------------------");
            
            while ( resultIter.hasNext() )
            {
                Object object = resultIter.next();
                if ( object instanceof Node ) 
                {
                    Node node = (Node) object;
                    System.out.println( node.asXML() );
                }
                else 
                {
                    System.out.println( object );
                }
            }
        }
        catch (XPathSyntaxException e)
        {
            System.err.println( e.getMultilineMessage() );
        }
        catch (JaxenException e)
        {
            e.printStackTrace();
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }
}