DynamicTest.java

package ch.vorburger.learnemf;

import java.util.List;

import org.eclipse.emf.ecore.EAttribute;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EFactory;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.EcoreFactory;
import org.eclipse.emf.ecore.EcorePackage;
import org.junit.Assert;
import org.junit.Test;

import com.ibm.devworks.sample.DynamicModelingEngine;

/**
 * Dynamic EMF Test.
 * 
 * @see http://www.ibm.com/developerworks/library/os-eclipse-dynamicemf/
 * 
 * @author Michael Vorburger
 */
public class DynamicTest {

	@Test
	public void testDynamicEMF() {
		/*
		 * Instantiate EcoreFactory
		 */
		EcoreFactory theCoreFactory = EcoreFactory.eINSTANCE;

		/*
		 * Create EClass instance to model BookStore class
		 */
		EClass bookStoreEClass = theCoreFactory.createEClass();
		bookStoreEClass.setName("BookStore");

		/*
		 * Create EClass instance to model Book class
		 */
		EClass bookEClass = theCoreFactory.createEClass();
		bookEClass.setName("Book");

		/*
		 * Instantiate EPackage and provide unique URI to identify this package
		 */
		EPackage bookStoreEPackage = theCoreFactory.createEPackage();
		bookStoreEPackage.setName("BookStorePackage");
		bookStoreEPackage.setNsPrefix("bookStore");
		bookStoreEPackage.setNsURI("http:///com.ibm.dynamic.example.bookstore.ecore");

		/*
		 * Instantiate EcorePackage
		 */
		EcorePackage theCorePackage = EcorePackage.eINSTANCE;

		/*
		 * Create attributes for BookStore class as specified in the model
		 */
		EAttribute bookStoreOwner = theCoreFactory.createEAttribute();
		bookStoreOwner.setName("owner");
		bookStoreOwner.setEType(theCorePackage.getEString());
		EAttribute bookStoreLocation = theCoreFactory.createEAttribute();
		bookStoreLocation.setName("location");
		bookStoreLocation.setEType(theCorePackage.getEString());
		EReference bookStore_Books = theCoreFactory.createEReference();
		bookStore_Books.setName("books");
		bookStore_Books.setEType(bookEClass);
		bookStore_Books.setUpperBound(EStructuralFeature.UNBOUNDED_MULTIPLICITY);
		bookStore_Books.setContainment(true);

		/*
		 * Create attributes for Book class as defined in the model
		 */
		EAttribute bookName = theCoreFactory.createEAttribute();
		bookName.setName("name");
		bookName.setEType(theCorePackage.getEString());
		EAttribute bookISBN = theCoreFactory.createEAttribute();
		bookISBN.setName("isbn");
		bookISBN.setEType(theCorePackage.getEInt());

		/*
		 * Add owner, location and books attributes/references to BookStore class
		 */
		bookStoreEClass.getEStructuralFeatures().add(bookStoreOwner);
		bookStoreEClass.getEStructuralFeatures().add(bookStoreLocation);
		bookStoreEClass.getEStructuralFeatures().add(bookStore_Books);

		/*
		 * Add name and isbn attributes to Book class
		 */
		bookEClass.getEStructuralFeatures().add(bookName);
		bookEClass.getEStructuralFeatures().add(bookISBN);

		/*
		 * Place BookStore and Book classes in bookStoreEPackage
		 */
		bookStoreEPackage.getEClassifiers().add(bookStoreEClass);
		bookStoreEPackage.getEClassifiers().add(bookEClass);

		/*
		 * Obtain EFactory instance from BookStoreEPackage
		 */
		EFactory bookFactoryInstance = bookStoreEPackage.getEFactoryInstance();

		/*
		 * Create dynamic instance of BookStoreEClass and BookEClass
		 */
		EObject bookObject = bookFactoryInstance.create(bookEClass);
		EObject bookStoreObject = bookFactoryInstance.create(bookStoreEClass);
		
		/*
		* Set the values of bookStoreObject attributes
		*/
		bookStoreObject.eSet(bookStoreOwner, "David Brown");
		bookStoreObject.eSet(bookStoreLocation, "Street#12, Top Town, NY");
		((List) bookStoreObject.eGet(bookStore_Books)).add(bookObject);

		/*
		* Set the values of bookObject attributes
		*/
		bookObject.eSet(bookName, "Harry Potter and the Deathly Hallows");
		bookObject.eSet(bookISBN, 157221);

		/*
		* Read/Get the values of bookStoreObject attributes
		*/
		String strOwner =(String)bookStoreObject.eGet(bookStoreOwner);
		Assert.assertEquals("David Brown", strOwner);
		String strLocation = (String)bookStoreObject.eGet(bookStoreLocation);
		Assert.assertEquals("Street#12, Top Town, NY", strLocation);

		/*
		* Read/Get the values of bookObject attributes
		*/
		String strName =(String)bookObject.eGet(bookName);
		Assert.assertEquals("Harry Potter and the Deathly Hallows", strName);
		Object iISBN = bookObject.eGet(bookISBN);
		Assert.assertEquals(157221, iISBN);
	}
	
	@Test
	public void testDevWorksSampleDynamicModelingEngine() {
		DynamicModelingEngine.main(null);
		
	}
}