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/**
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.samples.sdo.specExampleSection;
import commonj.sdo.DataObject;
import commonj.sdo.helper.XMLHelper;
import commonj.sdo.helper.XSDHelper;
import org.apache.tuscany.samples.sdo.SdoSampleConstants;
/**
* Demonstrates creating a DataObject from an XML String.
* <br>
* The following sample is from the <a href="http://incubator.apache.org/tuscany"
* target="_blank"> Apache Tuscany</a> project. It was written to help users
* understand and experiement with SDO. It is based upon example code contained
* within, and is meant for use with, and reference to the <a
* href="http://www.osoa.org/download/attachments/791/SDO_Specification_Java_V2.01.pdf?version=1"
* target="_bank">SDO Specification</a>. In general this sample attempts to use the
* code and comments contained within the specification, exceptions to this are noted
* in comments.<br>
* <br>
* Specifically this sample is based upon the 'Creating DataObject Trees from XML
* documents' example from the Examples section of the SDO Specification. It is
* possible to convert to and from XML documents to build DataObject trees, which is
* useful when assembling DataObjects from serval data sources. This sample uses the
* XMLHelper to convert xml Strings to DataObjects. <br>
* <br>
* Uses previously defined model
* {@link org.apache.tuscany.samples.sdo.SdoSampleConstants#PO_XSD_RESOURCE} to
* define types then generates a purchase order DataObject and persists to
* {@link org.apache.tuscany.samples.sdo.SdoSampleConstants#PO_XML_GENERATED}
* <br><br>
* <b>Usage:</b> <br>
* This sample can easily be run from within Eclipse as a Java Application if tuscany or
* the sample-sdo project is imported into Eclipse as an existing project.
* <br><br>
* If executing as a standalone application please do the following:
* <br>
* <UL>
* <LI>Include the following jar files on your classpath :
* <UL>
* <LI>SDO API and Tuscany Implementation
* <UL>
* <LI>sdo-api-{version}.jar - SDO API
* <LI>tuscany-sdo-impl-{version}.jar - Tuscany SDO implementation
* </UL>
* </LI>
* <LI>EMF dependencies.
* <UL>
* <LI>emf-common-{version}.jar - some common framework utility and base classes
* <LI>emf-ecore-{version}.jar - the EMF core runtime implementation classes (the Ecore metamodel)
* <LI>emf-ecore-change-{version}.jar - the EMF change recorder and framework
* <LI>emf-ecore-xmi-{version}.jar - EMF's default XML (and XMI) serializer and loader
* <LI>xsd-{version}.jar - the XML Schema model
* </UL>
* </LI>
* </UL>
*
* These jar files can be obtained from directly from Tuscany and EMF projects or from <a
* href="http://wiki.apache.org/ws-data/attachments/Tuscany(2f)TuscanyJava(2f)SDO_Java_Overview/attachments/SDO%20Execution%20Dependencies"
* target="_bank">SDO Execution Dependancies </a> </LI>
* <LI>Execute: <br>
* java org.apache.tuscany.samples.sdo.specExampleSection.CreatingDataObjectTreesFromXMLDocuments</LI>
* </UL>
*
* @author Robbie Minshall
* @see {@link org.apache.tuscany.samples.sdo.otherSources.CreatePurchaseOrder}
*/
public class CreatingDataObjectTreesFromXMLDocuments {
/**
* Drives sample
*
* @param args.
* none required.
*/
public static void main(String[] args) {
try {
System.out.println("***************************************");
System.out.println("SDO Sample CreatingDataObjectTreesFromXMLDocuments");
System.out.println("***************************************");
// use xsd to define purchase order types
System.out.println("Definging purchase order types using " + SdoSampleConstants.PO_XSD_RESOURCE);
XSDHelper.INSTANCE.define(ClassLoader.getSystemResourceAsStream(SdoSampleConstants.PO_XSD_RESOURCE), null);
System.out.println("Defined Types using xsd");
System.out.println("Creating purchase order DataObject using previously created " + SdoSampleConstants.PO_XML_RESOURCE);
DataObject purchaseOrder = XMLHelper.INSTANCE.load(ClassLoader.getSystemResourceAsStream(SdoSampleConstants.PO_XML_RESOURCE))
.getRootObject();
// To create the shipTo DataObject from XML:
String shipToXML = "<shipTo country='US'>" + " <name>Alice Smith</name>" + " <street>123 Maple Street</street>"
+ " <city>Mill Valley</city>" + " <state>PA</state>" + " <zip>90952</zip>" + "</shipTo>";
DataObject shipTo = XMLHelper.INSTANCE.load(shipToXML).getRootObject();
// Modify shipTo DataObject on purchaseOrder to value created from a
// String
System.out.println("Modifying shipTo DataObject on purchaseOrder to value created from a String");
purchaseOrder.set("shipTo", shipTo);
// Obtain and convert the billTo DataObject to XML
System.out.println("Obtaining billTo dataObject from purchase order and converting to XML");
DataObject billTo = purchaseOrder.getDataObject("billTo");
String billToXML = XMLHelper.INSTANCE.save(billTo, null, "billTo");
System.out.println("billTo DataObject:");
System.out.println(billToXML);
} catch (Exception e) {
System.out.println("Sorry an error occured " + e.toString());
e.printStackTrace();
}
System.out.println("GoodBye");
}
}
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