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Diffstat (limited to 'sdo-java/branches/sdo-java-M2/sdo/sample/src/main/java/org/apache/tuscany/samples/sdo/specCodeSnippets/CreateDataObjectFromXsdAndXmlFiles.java')
| -rw-r--r-- | sdo-java/branches/sdo-java-M2/sdo/sample/src/main/java/org/apache/tuscany/samples/sdo/specCodeSnippets/CreateDataObjectFromXsdAndXmlFiles.java | 196 |
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diff --git a/sdo-java/branches/sdo-java-M2/sdo/sample/src/main/java/org/apache/tuscany/samples/sdo/specCodeSnippets/CreateDataObjectFromXsdAndXmlFiles.java b/sdo-java/branches/sdo-java-M2/sdo/sample/src/main/java/org/apache/tuscany/samples/sdo/specCodeSnippets/CreateDataObjectFromXsdAndXmlFiles.java new file mode 100644 index 0000000000..6f1d8c60db --- /dev/null +++ b/sdo-java/branches/sdo-java-M2/sdo/sample/src/main/java/org/apache/tuscany/samples/sdo/specCodeSnippets/CreateDataObjectFromXsdAndXmlFiles.java @@ -0,0 +1,196 @@ +/** + * + * 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.specCodeSnippets; + +import java.io.InputStream; + +import org.apache.tuscany.samples.sdo.SdoSampleConstants; +import commonj.sdo.DataObject; +import commonj.sdo.helper.XMLDocument; +import commonj.sdo.helper.XMLHelper; +import commonj.sdo.helper.XSDHelper; + + +/** + * Demonstrates defining Types by using a predefined xsd resource, and populating a DataObject by using a previously created xml file. + * + * 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 code snippets 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>. <br> + * <br> + * <br>Uses {@link org.apache.tuscany.samples.sdo.SdoSampleConstants#PO_XSD_RESOURCE} and {@link org.apache.tuscany.samples.sdo.SdoSampleConstants#PO_XML_RESOURCE} in order to define purcahseOrder DataObjects + * <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.specCodeSnippets.CreateDataObjectFromXsdAndXmlFiles</LI> + * </UL> + * + * @author Robbie Minshall + */ +public class CreateDataObjectFromXsdAndXmlFiles { + + public static boolean typesDefined = false; + + + /** + * Loads the {@link org.apache.tuscany.samples.sdo.SdoSampleConstants#PO_XSD_RESOURCE} resource in order to define PurchaseOrder + * Types + */ + public static void definePurchaseOrderTypeUsingXsdResource() + throws Exception { + + InputStream is = null; + try { + System.out.println("Attempting to define types using resource " + + SdoSampleConstants.PO_XSD_RESOURCE); + is = ClassLoader.getSystemResourceAsStream(SdoSampleConstants.PO_XSD_RESOURCE); + if (is == null) { + System.out.println("InputStream is null, you may need to add the resources directory is on the classpath"); + throw new Exception("InputStream for " + SdoSampleConstants.PO_XSD_RESOURCE + " was null, ensure that it is located on the classpath"); + } else { + System.out.println("Obtained Input Stream from resoruce"); + } + XSDHelper.INSTANCE.define(is, null); + + } catch (Exception e) { + System.out + .println("Exception caught defining Types from resoruce stream to " + + SdoSampleConstants.PO_XSD_RESOURCE); + throw e; + } finally { + // try to close the input stream + if (is != null) { + try { + is.close(); + System.out.println("Closed input stream"); + } catch (Exception e) { + System.out.println("could not close input stream " + e.toString()); + } + } + } + } + + /** + * Uses resource {@link org.apache.tuscany.samples.sdo.SdoSampleConstants#PO_XML_RESOURCE} to populate DataObject + * @return populated purchase order DataObject + */ + public static DataObject createPurchaseOrderDataObjectUsingXmlResource() + throws Exception { + + if (! typesDefined){ + definePurchaseOrderTypeUsingXsdResource(); + } + DataObject purchaseOrder = null; + InputStream is = null; + + try { + + System.out + .println("Using resource as stream to access xml to populate DataObjects"); + // FileInputStream fis = new FileInputStream(xmlFileName); + is = ClassLoader.getSystemResourceAsStream(SdoSampleConstants.PO_XML_RESOURCE); + if (is == null) { + System.out.println("InputStream is null"); + } else { + System.out + .println("Successfully obtained InputStream from resource"); + } + XMLDocument xmlDoc = XMLHelper.INSTANCE.load(is); + purchaseOrder = xmlDoc.getRootObject(); + + } catch (Exception e) { + System.out.println("Could not use resourceAsStream " + + e.toString()); + e.printStackTrace(); + throw e; + }finally { + // try to close the input stream + if (is != null) { + try { + is.close(); + System.out.println("Closed input stream"); + } catch (Exception e) { + System.out.println("Could not close input stream " + e.toString()); + } + } + } + + return purchaseOrder; + } + + /** + * @param args. No arguments required + */ + public static void main(String[] args) { + // information + System.out.println("***************************************"); + System.out.println("SDO Sample CreateDataObjectFromXsdAndXmlFiles"); + System.out.println("***************************************"); + System.out.println("Demonstrates defining Types by using a predefined xsd resource, and populating a DataObject by using a previously created xml file"); + System.out.println("***************************************"); + + + try { + // define the types + definePurchaseOrderTypeUsingXsdResource(); + + // create a dataObject + DataObject purchaseOrder = createPurchaseOrderDataObjectUsingXmlResource(); + System.out.println("DataObject sucessfully created"); + + } catch (Exception e) { + System.out.println("Sorry there was an error encountered " + e.toString()); + } + System.out.println("GoodBye"); + } + +} |