/*******************************************************************************
 * Copyright (c) 2008, 2009 Oracle. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0, which accompanies this distribution
 * and is available at http://www.eclipse.org/legal/epl-v10.html.
 * 
 * Contributors:
 *     Oracle - initial API and implementation
 *******************************************************************************/
package org.eclipse.jpt.eclipselink.core.tests.internal.context.orm;

import org.eclipse.jpt.core.MappingKeys;
import org.eclipse.jpt.core.context.orm.OrmPersistentAttribute;
import org.eclipse.jpt.core.context.orm.OrmPersistentType;
import org.eclipse.jpt.core.resource.java.JPA;
import org.eclipse.jpt.core.tests.internal.projects.TestJavaProject.SourceWriter;
import org.eclipse.jpt.eclipselink.core.context.EclipseLinkRelationshipMapping;
import org.eclipse.jpt.eclipselink.core.context.EclipseLinkJoinFetchType;
import org.eclipse.jpt.eclipselink.core.internal.context.orm.OrmEclipseLinkManyToOneMapping;
import org.eclipse.jpt.eclipselink.core.internal.context.orm.OrmEclipseLinkOneToOneMapping;
import org.eclipse.jpt.eclipselink.core.resource.orm.XmlEntity;
import org.eclipse.jpt.eclipselink.core.resource.orm.XmlJoinFetchType;
import org.eclipse.jpt.eclipselink.core.resource.orm.XmlManyToOne;

@SuppressWarnings("nls")
public class EclipseLinkOrmManyToOneMappingTests
	extends EclipseLinkOrmContextModelTestCase
{
	public EclipseLinkOrmManyToOneMappingTests(String name) {
		super(name);
	}
	
	private void createTestDepartment() throws Exception {
		SourceWriter sourceWriter = new SourceWriter() {
			public void appendSourceTo(StringBuilder sb) {
				sb.append(CR);
					sb.append("import ").append(JPA.ENTITY).append(";");
					sb.append(CR);
					sb.append("import ").append(JPA.ID).append(";");
					sb.append(CR);
					sb.append(CR);
					sb.append("import ").append(JPA.MANY_TO_ONE).append(";");
				sb.append("@Entity");
				sb.append(CR);
				sb.append("public class ").append("Department").append(" ");
				sb.append("{").append(CR);
				sb.append(CR);
				sb.append("    @Id").append(CR);
				sb.append("    private int id;").append(CR);
				sb.append(CR);
				sb.append("    @ManyToOne").append(CR);
				sb.append("    private Employee employee;").append(CR);
				sb.append(CR);
				sb.append("}").append(CR);
		}
		};
		this.javaProject.createCompilationUnit(PACKAGE_NAME, "Department.java", sourceWriter);
	}

	private void createTestEmployee() throws Exception {
		SourceWriter sourceWriter = new SourceWriter() {
			public void appendSourceTo(StringBuilder sb) {
				sb.append(CR);
					sb.append("import ").append(JPA.ENTITY).append(";");
					sb.append(CR);
					sb.append("import ").append(JPA.ID).append(";");
					sb.append(CR);
			sb.append("@Entity");
				sb.append(CR);
				sb.append("public class ").append("Employee").append(" ");
				sb.append("{").append(CR);
				sb.append(CR);
				sb.append("    @Id").append(CR);
				sb.append("    private int empId;").append(CR);
				sb.append(CR);
				sb.append("}").append(CR);
		}
		};
		this.javaProject.createCompilationUnit(PACKAGE_NAME, "Employee.java", sourceWriter);
	}
	
	public void testUpdateJoinFetch() throws Exception {
		OrmPersistentType ormPersistentType = 
			getEntityMappings().addPersistentType(MappingKeys.ENTITY_TYPE_MAPPING_KEY, FULLY_QUALIFIED_TYPE_NAME);
		OrmPersistentAttribute ormPersistentAttribute =
			ormPersistentType.addSpecifiedAttribute(MappingKeys.MANY_TO_ONE_ATTRIBUTE_MAPPING_KEY, "manyToOne");
		EclipseLinkRelationshipMapping contextManyToOne = 
			(EclipseLinkRelationshipMapping) ormPersistentAttribute.getMapping();
		XmlEntity resourceEntity = 
			(XmlEntity) getXmlEntityMappings().getEntities().get(0);
		XmlManyToOne resourceManyToOne = 
			(XmlManyToOne) resourceEntity.getAttributes().getManyToOnes().get(0);
		
		// check defaults
		
		assertNull(resourceManyToOne.getJoinFetch());
		assertNull(contextManyToOne.getJoinFetch().getValue());
		
		// set xml join fetch to INNER, check context
		
		resourceManyToOne.setJoinFetch(XmlJoinFetchType.INNER);
		
		assertEquals(XmlJoinFetchType.INNER, resourceManyToOne.getJoinFetch());
		assertEquals(EclipseLinkJoinFetchType.INNER, contextManyToOne.getJoinFetch().getValue());
		
		// set xml join fetch to OUTER, check context
		
		resourceManyToOne.setJoinFetch(XmlJoinFetchType.OUTER);
		
		assertEquals(XmlJoinFetchType.OUTER, resourceManyToOne.getJoinFetch());
		assertEquals(EclipseLinkJoinFetchType.OUTER, contextManyToOne.getJoinFetch().getValue());
		
		// set xml join fetch to null, check context
		
		resourceManyToOne.setJoinFetch(null);
		
		assertNull(resourceManyToOne.getJoinFetch());
		assertNull(contextManyToOne.getJoinFetch().getValue());
	}
	
	public void testModifyJoinFetch() throws Exception {
		OrmPersistentType ormPersistentType = 
			getEntityMappings().addPersistentType(MappingKeys.ENTITY_TYPE_MAPPING_KEY, FULLY_QUALIFIED_TYPE_NAME);
		OrmPersistentAttribute ormPersistentAttribute =
			ormPersistentType.addSpecifiedAttribute(MappingKeys.MANY_TO_ONE_ATTRIBUTE_MAPPING_KEY, "manyToOne");
		EclipseLinkRelationshipMapping contextManyToOne = 
			(EclipseLinkRelationshipMapping) ormPersistentAttribute.getMapping();
		XmlEntity resourceEntity = 
			(XmlEntity)getXmlEntityMappings().getEntities().get(0);
		XmlManyToOne resourceManyToOne = 
			(XmlManyToOne) resourceEntity.getAttributes().getManyToOnes().get(0);
		
		// check defaults
		
		assertNull(resourceManyToOne.getJoinFetch());
		assertNull(contextManyToOne.getJoinFetch().getValue());
		
		// set context join fetch to INNER, check resource
		
		contextManyToOne.getJoinFetch().setValue(EclipseLinkJoinFetchType.INNER);
		
		assertEquals(XmlJoinFetchType.INNER, resourceManyToOne.getJoinFetch());
		assertEquals(EclipseLinkJoinFetchType.INNER, contextManyToOne.getJoinFetch().getValue());
		
		// set context join fetch to OUTER, check resource
		
		contextManyToOne.getJoinFetch().setValue(EclipseLinkJoinFetchType.OUTER);
		
		assertEquals(XmlJoinFetchType.OUTER, resourceManyToOne.getJoinFetch());
		assertEquals(EclipseLinkJoinFetchType.OUTER, contextManyToOne.getJoinFetch().getValue());
		
		// set context join fetch to null, check resource
		
		contextManyToOne.getJoinFetch().setValue(null);
		
		assertNull(resourceManyToOne.getJoinFetch());
		assertNull(contextManyToOne.getJoinFetch().getValue());
	}
	
	public void testJoinFetchDefaultFromJava() throws Exception {
		createTestEmployee();
		createTestDepartment();
		getEntityMappings().addPersistentType(MappingKeys.ENTITY_TYPE_MAPPING_KEY, PACKAGE_NAME + ".Department");
		getEntityMappings().addPersistentType(MappingKeys.ENTITY_TYPE_MAPPING_KEY, PACKAGE_NAME + ".Employee");
		
		OrmPersistentType departmentPersistentType = getEntityMappings().getPersistentTypes().iterator().next();
		OrmEclipseLinkManyToOneMapping manyToOne = (OrmEclipseLinkManyToOneMapping) departmentPersistentType.getAttributeNamed("employee").getMapping();

		assertNull(manyToOne.getJoinFetch().getValue());
		
		getEntityMappings().getPersistenceUnitMetadata().setXmlMappingMetadataComplete(true);
		OrmEclipseLinkOneToOneMapping oneToOne = (OrmEclipseLinkOneToOneMapping) departmentPersistentType.getAttributeNamed("employee").getMapping();
		assertNull(oneToOne.getJoinFetch().getValue());
		
		
		EclipseLinkRelationshipMapping javaRelationshipMapping = (EclipseLinkRelationshipMapping) departmentPersistentType.getJavaPersistentType().getAttributeNamed("employee").getMapping();
		javaRelationshipMapping.getJoinFetch().setValue(EclipseLinkJoinFetchType.OUTER);
		assertNull(manyToOne.getJoinFetch().getValue());
		
		getEntityMappings().getPersistenceUnitMetadata().setXmlMappingMetadataComplete(false);
		manyToOne = (OrmEclipseLinkManyToOneMapping) departmentPersistentType.getAttributeNamed("employee").getMapping();
		assertEquals(EclipseLinkJoinFetchType.OUTER, manyToOne.getJoinFetch().getValue());
	}

}