/**
 *
 * Copyright 2005 The Apache Software Foundation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.apache.tuscany.sdo.proxy;

import java.io.IOException;
import java.util.Date;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import junit.framework.TestCase;
import org.osoa.sdo.DataObject;
import org.osoa.sdo.Type;
import org.w3c.dom.Document;
import org.w3c.dom.Element;

import org.apache.tuscany.sdo.helper.DOMHelperImpl;
import org.apache.tuscany.sdo.impl.DataFactoryImpl;
import org.apache.tuscany.sdo.impl.TypeHelperImpl;
import org.apache.tuscany.sdo.proxy.interfaces.DataTypes;
import org.apache.tuscany.sdo.proxy.interfaces.Primitives;

/**
 * @version $Rev$ $Date$
 */
public class DOMHelperTestCase extends TestCase {
    private Primitives primitives;
    private DataTypes dataTypes;
    private DOMHelperImpl domHelper;
    private Document doc;

    public void testSavePrimitives() throws IOException {
        domHelper.save((DataObject<Primitives>) primitives, doc);
        Element e = doc.getDocumentElement();
        assertEquals(Type.JAVA_NAMESPACE, e.getNamespaceURI());
        assertEquals(Primitives.class.getName(), e.getLocalName());
        assertEquals(8, e.getChildNodes().getLength());
//        domHelper.writeTo(System.out, doc);
    }

    public void testLoadPrimitives() {
        Element rootElement = doc.createElementNS(Type.JAVA_NAMESPACE, Primitives.class.getName());
        appendElement(rootElement, "boolean", "true");
        doc.appendChild(rootElement);
        Primitives primitives = (Primitives) domHelper.load(doc);
        assertNotNull(primitives);
        assertEquals(true, primitives.isBoolean());
    }

    private void appendElement(Element parent, String name, String text) {
        Element e = doc.createElementNS(null, name);
        e.appendChild(doc.createTextNode(text));
        parent.appendChild(e);
    }

    public void testSaveDataTypes() throws IOException {
        dataTypes.setString("Hello World");
        dataTypes.setBytes(new byte[]{ 0 , 1, 2, 3});
        dataTypes.setDate(new Date());
        domHelper.save((DataObject<DataTypes>) dataTypes, doc);
        Element e = doc.getDocumentElement();
        assertEquals(Type.JAVA_NAMESPACE, e.getNamespaceURI());
        assertEquals(DataTypes.class.getName(), e.getLocalName());
        assertEquals(3, e.getChildNodes().getLength());
//        domHelper.writeTo(System.out, doc);
    }

    protected void setUp() throws Exception {
        super.setUp();
        TypeHelperImpl typeHelper = new TypeHelperImpl(getClass().getClassLoader());
        DataFactoryImpl dataFactory = new DataFactoryImpl(typeHelper);
        domHelper = new DOMHelperImpl(dataFactory);

        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        DocumentBuilder builder = factory.newDocumentBuilder();
        doc = builder.newDocument();

        primitives = typeHelper.define(Primitives.class).newInstance();
        dataTypes = typeHelper.define(DataTypes.class).newInstance();
    }
}