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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.basic;
import java.io.FileOutputStream;
import java.io.OutputStream;
import org.apache.tuscany.samples.sdo.SampleBase;
import org.apache.tuscany.samples.sdo.internal.SampleInfrastructure;
import commonj.sdo.DataObject;
import commonj.sdo.helper.DataFactory;
import commonj.sdo.helper.HelperContext;
import commonj.sdo.helper.XMLDocument;
/**
* Demonstrates creating a purchaseOrder DataObject from an existing XSD and then
* persisting to disk. This
* sample was used to generate valid XML for Fuhwei Lwo's paper <A
* HREF="http://www-128.ibm.com/developerworks/webservices/library/ws-sdoxmlschema/">
* Create and read an XML document based on XML Schema</A>
* <p>
* <h3>Running this Sample</h3> See <A HREF="../../../../../../index.html"
* target="_top">the main overview</A> for instructions on how to run this
* sample.
*/
public class CreatePurchaseOrder extends SampleBase {
public CreatePurchaseOrder(Integer commentaryLevel) {
super(commentaryLevel, SAMPLE_LEVEL_BASIC);
}
/*
* metadata for the sample documenting the areas of SDO that are explored
*/
public static int [] CORE_FUNCTION = {
SDOFacets.LOADING_DATA_FROM_XML,
SDOFacets.SAVING_DATA_TO_XML
};
public static void main(String[] args) {
CreatePurchaseOrder sample = new CreatePurchaseOrder(COMMENTARY_FOR_NOVICE);
sample.run();
}
public void runSample() throws Exception {
commentary(COMMENTARY_ALWAYS,
"This sample is based upon Fuhwei Lwo's paper\n"
+ "http://www-128.ibm.com/developerworks/webservices/library/ws-sdoxmlschema/\n"
+ "and demonstrates creating a purchaseOrder DataObject from an\n"
+ "existing XSD and then persisting to disk.");
HelperContext scope = createScopeForTypes();
loadTypesFromXMLSchemaFile(scope, SampleInfrastructure.PO_XSD_RESOURCE);
commentary (
"We are creating a DataObject using a DataFactory by specifying the URI and name of\n"+
"the Type that we want to use for the DataObject.\n\n"+
"DataFactory factory = scope.getDataFactory();\n"+
"DataObject purchaseOrder = factory.create(SampleInfrastructure.PO_NAMESPACE, \"PurchaseOrderType\");");
DataFactory factory = scope.getDataFactory();
DataObject purchaseOrder = factory.create(SampleInfrastructure.PO_NAMESPACE, "PurchaseOrderType");
commentary(
"Now we build on the graph using the DataObject's set() and createDataObject() methods.\n"+
"Take a look inside the program code for the full detail of these steps");
purchaseOrder.setString("orderDate", "1999-10-20");
DataObject shipTo = purchaseOrder.createDataObject("shipTo");
shipTo.set("country", "US");
shipTo.set("name", "Alice Smith");
shipTo.set("street", "123 Maple Street");
shipTo.set("city", "Mill Valley");
shipTo.set("state", "CA");
shipTo.setString("zip", "90952");
DataObject billTo = purchaseOrder.createDataObject("billTo");
billTo.set("country", "US");
billTo.set("name", "Robert Smith");
billTo.set("street", "8 Oak Avenue");
billTo.set("city", "Mill Valley");
billTo.set("state", "PA");
billTo.setString("zip", "95819");
purchaseOrder.set("comment", "Hurry, my lawn is going wild!");
DataObject items = purchaseOrder.createDataObject("items");
DataObject item1 = items.createDataObject("item");
item1.set("partNum", "872-AA");
item1.set("productName", "Lawnmower");
item1.setInt("quantity", 1);
item1.setString("price", "148.95");
item1.set("comment", "Confirm this is electric");
DataObject item2 = items.createDataObject("item");
item2.set("partNum", "926-AA");
item2.set("productName", "Baby Monitor");
item2.setInt("quantity", 1);
item2.setString("price", "39.98");
item2.setString("shipDate", "1999-05-21");
System.out.println("Created 2 items");
commentary(
"Now we use the XMLHelper to write an XML document representing the data graph\n"+
"to a file. We must supply a namespace and a name for the root element of the graph, since it is\n"+
"not contained in the DataObject\n\n"+
"OutputStream stream = new FileOutputStream(SampleInfrastructure.PO_XML_GENERATED);\n"+
"scope.getXMLHelper().save(purchaseOrder, SampleInfrastructure.PO_NAMESPACE, \"purchaseOrder\", stream);"
);
OutputStream stream = new FileOutputStream(SampleInfrastructure.PO_XML_GENERATED);
scope.getXMLHelper().save(purchaseOrder, SampleInfrastructure.PO_NAMESPACE, "purchaseOrder", stream);
stream.close();
commentary(
"We could instead have created an XMLDocument instance to wrap the DataObject\n"+
"This has the advantage that the namespace URI and root element name are preserved in the Object\n"+
"This interface was introduced after Fuhwei's paper, and has particular advantage\n"+
"when loading an XML document from a file\n\n"+
"scope.getXMLHelper().createDocument(purchaseOrder, SampleInfrastructure.PO_NAMESPACE, \"purchaseOrder\");\n"+
"scope.getXMLHelper().save(doc, System.out, null);");
XMLDocument doc = scope.getXMLHelper().createDocument(purchaseOrder, SampleInfrastructure.PO_NAMESPACE, "purchaseOrder");
scope.getXMLHelper().save(doc, System.out, null);
System.out.println();
}
}
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