xpathtest.java

Java的面向对象数据库系统的源代码

// You can redistribute this software and/or modify it under the terms of
// the Ozone Library License version 1 published by ozone-db.org.
//
// The original code and portions created by SMB are
// Copyright (C) 1997-@year@ by SMB GmbH. All rights reserved.
//
// $Id: XPathTest.java,v 1.2 2003/07/07 10:30:30 per_nyfelt Exp $
package test.ozoneDB.xml.dom4j;

import junit.framework.TestCase;
import org.dom4j.Document;
import org.dom4j.Element;
import org.ozoneDB.ExternalDatabase;
import org.ozoneDB.xml.dom4j.O3DocumentHelper;

import java.util.List;

/**
 * $Id: XPathTest.java,v 1.2 2003/07/07 10:30:30 per_nyfelt Exp $
 */
public class XPathTest extends TestCase {

    final String addressXML = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
            "<addresses>" +
            "<address name=\"Andreas\"><town>New York</town></address>" +
            "<address name=\"Lars\"><town>Los Angeles</town></address>" +
            "</addresses>";

    ExternalDatabase db;

    public XPathTest(String methodName) {
        super(methodName);
    }

    public void setUp() {
        try {
            db = ExternalDatabase.openDatabase("ozonedb:remote://localhost:3333");
            O3DocumentHelper.configure(db);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public void tearDown() {
        try {
            if ((db != null) && (db.isOpen())) {
                db.close();
            }
        } catch (Exception e) {
            fail(e.toString());
        }
    }

    public void testXPathl() {
        try {
            Document doc;
            System.out.println("Parsing string");
            doc = O3DocumentHelper.parseText(addressXML);
            Element root = doc.getRootElement();
            List nodes = root.selectNodes("/addresses/address/town");
            assertEquals("expected 2 nodes", 2, nodes.size());
            root.selectObject("//address@name='Lars'");
            O3DocumentHelper.deleteDocument(doc);
        } catch (Exception e) {
            e.printStackTrace();
            fail(e.toString());
        }

    }
}