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/**
*
* Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
*
* 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.test;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.math.BigDecimal;
import java.net.URL;
import junit.framework.TestCase;
import org.apache.tuscany.sdo.util.SDOUtil;
import commonj.sdo.ChangeSummary;
import commonj.sdo.DataGraph;
import commonj.sdo.DataObject;
import commonj.sdo.helper.XSDHelper;
public class ChangeSummaryTestCase extends TestCase {
private final String TEST_MODEL = "/simple.xsd";
private final String TEST_DATA = "/simplechangesummary.xml";
/**
* Simple ChangeSummary test.
*/
public void testChangeSummary() throws IOException {
// Create an empty data graph and add a root object, an instance of type Quote
//
DataGraph dataGraph = SDOUtil.createDataGraph();
DataObject quote = dataGraph.createRootObject("http://www.example.com/simple", "Quote");
// Begin logging changes
//
ChangeSummary changeSummary = dataGraph.getChangeSummary();
changeSummary.beginLogging();
// Modify the data graph in various fun and interesting ways
//
quote.setString("symbol", "fbnt");
quote.setString("companyName", "FlyByNightTechnology");
quote.setBigDecimal("price", new BigDecimal("1000.0"));
quote.setBigDecimal("open1", new BigDecimal("1000.0"));
quote.setBigDecimal("high", new BigDecimal("1000.0"));
quote.setBigDecimal("low", new BigDecimal("1000.0"));
quote.setDouble("volume", 1000);
quote.setDouble("change1", 1000);
DataObject child = quote.createDataObject("quotes");
child.setBigDecimal("price", new BigDecimal("2000.0"));
// Stop logging changes and print the resulting data graph to stdout
//
changeSummary.endLogging();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
SDOUtil.saveDataGraph(dataGraph, baos, null);
assertTrue(TestUtil.equalXmlFiles(new ByteArrayInputStream(baos.toByteArray()), getClass().getResource(TEST_DATA)));
}
protected void setUp() throws Exception {
super.setUp();
// Populate the meta data for the test (Stock Quote) model
URL url = getClass().getResource(TEST_MODEL);
InputStream inputStream = url.openStream();
XSDHelper.INSTANCE.define(inputStream, url.toString());
inputStream.close();
}
}
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