/*******************************************************************************
* Copyright (c) 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.eclipselink2_0.core.tests.internal.context.java;

import java.util.Iterator;

import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jpt.core.context.PersistentAttribute;
import org.eclipse.jpt.core.jpa2.context.OneToManyMapping2_0;
import org.eclipse.jpt.core.jpa2.context.java.JavaOrphanRemovable2_0;
import org.eclipse.jpt.core.jpa2.context.java.JavaOrphanRemovalHolder2_0;
import org.eclipse.jpt.core.jpa2.resource.java.OneToMany2_0Annotation;
import org.eclipse.jpt.core.resource.java.JPA;
import org.eclipse.jpt.core.resource.java.JavaResourcePersistentAttribute;
import org.eclipse.jpt.core.resource.java.JavaResourcePersistentType;
import org.eclipse.jpt.eclipselink2_0.core.tests.internal.context.EclipseLink2_0ContextModelTestCase;
import org.eclipse.jpt.utility.internal.iterables.EmptyIterable;
import org.eclipse.jpt.utility.internal.iterators.ArrayIterator;

/**
 *  EclipseLink2_0JavaOneToManyMappingTests
 */
@SuppressWarnings("nls")
public class EclipseLink2_0JavaOneToManyMappingTests
	extends EclipseLink2_0ContextModelTestCase
{
	public EclipseLink2_0JavaOneToManyMappingTests(String name) {
		super(name);
	}

	private ICompilationUnit createTestEntity() throws Exception {
		return this.createTestType(new DefaultAnnotationWriter() {
			@Override
			public Iterator<String> imports() {
				return new ArrayIterator<String>(JPA.ENTITY, JPA.ONE_TO_MANY, JPA.ID, "java.util.Collection");
			}
			@Override
			public void appendTypeAnnotationTo(StringBuilder sb) {
				sb.append("@Entity").append(CR);
			}
			
			@Override
			public void appendIdFieldAnnotationTo(StringBuilder sb) {
				sb.append(CR);
				sb.append("    @OneToMany").append(CR);				
				sb.append("    private Collection<Address> addresses;").append(CR);
				sb.append(CR);
				sb.append("    @Id").append(CR);				
			}
		});
	}
		
	private ICompilationUnit createTestEntityWithValidOneToManyMappingOrphanRemovalSpecified() throws Exception {
		return this.createTestType(new DefaultAnnotationWriter() {
			@Override
			public Iterator<String> imports() {
				return new ArrayIterator<String>(JPA.ENTITY, JPA.ONE_TO_MANY, JPA.ID, "java.util.Collection");
			}
			@Override
			public void appendTypeAnnotationTo(StringBuilder sb) {
				sb.append("@Entity").append(CR);
			}
			
			@Override
			public void appendIdFieldAnnotationTo(StringBuilder sb) {
				sb.append(CR);
				sb.append("    @OneToMany(orphanRemoval=false)").append(CR);
				sb.append("    private Collection<Address> addresses;").append(CR);
				sb.append(CR);
				sb.append("    @Id").append(CR);				
			}
		});
	}
	
	private JavaOrphanRemovable2_0 getOrphanRemovalOf(OneToManyMapping2_0 oneToManyMapping) {
		return ((JavaOrphanRemovalHolder2_0) oneToManyMapping).getOrphanRemoval();
	}

	public void testDefaultOneToManyGetDefaultOrphanRemoval() throws Exception {
		this.createTestEntity();
		this.addXmlClassRef(FULLY_QUALIFIED_TYPE_NAME);
		
		PersistentAttribute persistentAttribute = getJavaPersistentType().attributes().next();
		OneToManyMapping2_0 oneToManyMapping = (OneToManyMapping2_0) persistentAttribute.getMapping();
		assertEquals(false, this.getOrphanRemovalOf(oneToManyMapping).isDefaultOrphanRemoval());
	}
	
	public void testSpecifiedOneToManyGetDefaultOrphanRemoval() throws Exception {
		this.createTestEntity();
		this.addXmlClassRef(FULLY_QUALIFIED_TYPE_NAME);
		
		PersistentAttribute persistentAttribute = getJavaPersistentType().attributes().next();
		OneToManyMapping2_0 oneToManyMapping = (OneToManyMapping2_0) persistentAttribute.getSpecifiedMapping();
		assertEquals(false, this.getOrphanRemovalOf(oneToManyMapping).isDefaultOrphanRemoval());
	}
	
	public void testGetOrphanRemoval() throws Exception {
		this.createTestEntity();
		this.addXmlClassRef(FULLY_QUALIFIED_TYPE_NAME);
		
		PersistentAttribute persistentAttribute = getJavaPersistentType().attributes().next();
		OneToManyMapping2_0 oneToManyMapping = (OneToManyMapping2_0) persistentAttribute.getSpecifiedMapping();
		JavaOrphanRemovable2_0 mappingsOrphanRemoval = this.getOrphanRemovalOf(oneToManyMapping);


		assertEquals(false, mappingsOrphanRemoval.isOrphanRemoval());
		
		mappingsOrphanRemoval.setSpecifiedOrphanRemoval(Boolean.TRUE);
		assertEquals(true, mappingsOrphanRemoval.isOrphanRemoval());
	}
	
	public void testGetSpecifiedOrphanRemoval() throws Exception {
		this.createTestEntity();
		this.addXmlClassRef(FULLY_QUALIFIED_TYPE_NAME);
		
		PersistentAttribute persistentAttribute = getJavaPersistentType().attributes().next();
		OneToManyMapping2_0 oneToManyMapping = (OneToManyMapping2_0) persistentAttribute.getSpecifiedMapping();
		JavaOrphanRemovable2_0 mappingsOrphanRemoval = this.getOrphanRemovalOf(oneToManyMapping);

		assertNull(mappingsOrphanRemoval.getSpecifiedOrphanRemoval());
		
		JavaResourcePersistentType typeResource = getJpaProject().getJavaResourcePersistentType(FULLY_QUALIFIED_TYPE_NAME);
		JavaResourcePersistentAttribute attributeResource = typeResource.persistableAttributes().next();
		OneToMany2_0Annotation oneToMany = (OneToMany2_0Annotation) attributeResource.getAnnotation(JPA.ONE_TO_MANY);
		oneToMany.setOrphanRemoval(Boolean.FALSE);
		
		assertEquals(Boolean.FALSE, mappingsOrphanRemoval.getSpecifiedOrphanRemoval());
	}
	
	public void testGetSpecifiedOrphanRemoval2() throws Exception {
		this.createTestEntityWithValidOneToManyMappingOrphanRemovalSpecified();
		this.addXmlClassRef(FULLY_QUALIFIED_TYPE_NAME);
		
		PersistentAttribute persistentAttribute = getJavaPersistentType().attributes().next();
		OneToManyMapping2_0 oneToManyMapping = (OneToManyMapping2_0) persistentAttribute.getSpecifiedMapping();
		JavaOrphanRemovable2_0 mappingsOrphanRemoval = this.getOrphanRemovalOf(oneToManyMapping);

		assertEquals(Boolean.FALSE, mappingsOrphanRemoval.getSpecifiedOrphanRemoval());
	}

	public void testSetSpecifiedOrphanRemoval() throws Exception {
		this.createTestEntity();
		this.addXmlClassRef(FULLY_QUALIFIED_TYPE_NAME);
		
		PersistentAttribute persistentAttribute = getJavaPersistentType().attributes().next();
		OneToManyMapping2_0 oneToManyMapping = (OneToManyMapping2_0) persistentAttribute.getMapping();
		JavaOrphanRemovable2_0 mappingsOrphanRemoval = this.getOrphanRemovalOf(oneToManyMapping);
		assertNull(mappingsOrphanRemoval.getSpecifiedOrphanRemoval());
		
		mappingsOrphanRemoval.setSpecifiedOrphanRemoval(Boolean.TRUE);
		
		JavaResourcePersistentType typeResource = getJpaProject().getJavaResourcePersistentType(FULLY_QUALIFIED_TYPE_NAME);
		JavaResourcePersistentAttribute attributeResource = typeResource.persistableAttributes().next();
		OneToMany2_0Annotation oneToMany = (OneToMany2_0Annotation) attributeResource.getAnnotation(JPA.ONE_TO_MANY);
		
		assertEquals(Boolean.TRUE, oneToMany.getOrphanRemoval());
		
		mappingsOrphanRemoval.setSpecifiedOrphanRemoval(null);
		assertNotNull(attributeResource.getAnnotation(JPA.ONE_TO_MANY)); 	// .getElement);
	}
	
	public void testSetSpecifiedOrphanRemoval2() throws Exception {
		this.createTestEntity();
		this.addXmlClassRef(FULLY_QUALIFIED_TYPE_NAME);
		
		PersistentAttribute persistentAttribute = getJavaPersistentType().attributes().next();
		OneToManyMapping2_0 oneToManyMapping = (OneToManyMapping2_0) persistentAttribute.getMapping();
		JavaOrphanRemovable2_0 mappingsOrphanRemoval = this.getOrphanRemovalOf(oneToManyMapping);
		assertNull(mappingsOrphanRemoval.getSpecifiedOrphanRemoval());
		
		mappingsOrphanRemoval.setSpecifiedOrphanRemoval(Boolean.TRUE);
		
		JavaResourcePersistentType typeResource = getJpaProject().getJavaResourcePersistentType(FULLY_QUALIFIED_TYPE_NAME);
		JavaResourcePersistentAttribute attributeResource = typeResource.persistableAttributes().next();
		OneToMany2_0Annotation oneToMany = (OneToMany2_0Annotation) attributeResource.getAnnotation(JPA.ONE_TO_MANY);
		
		assertEquals(Boolean.TRUE, oneToMany.getOrphanRemoval());
		
		oneToManyMapping = (OneToManyMapping2_0) persistentAttribute.getMapping();
		assertEquals(Boolean.TRUE, mappingsOrphanRemoval.getSpecifiedOrphanRemoval());

		mappingsOrphanRemoval.setSpecifiedOrphanRemoval(null);
		assertNotNull(attributeResource.getAnnotation(JPA.ONE_TO_MANY));
		
		oneToManyMapping = (OneToManyMapping2_0) persistentAttribute.getMapping();
	}

	public void testGetSpecifiedOrphanRemovalUpdatesFromResourceModelChange() throws Exception {
		this.createTestEntity();
		this.addXmlClassRef(FULLY_QUALIFIED_TYPE_NAME);
		
		PersistentAttribute persistentAttribute = getJavaPersistentType().attributes().next();
		OneToManyMapping2_0 oneToManyMapping = (OneToManyMapping2_0) persistentAttribute.getSpecifiedMapping();
		JavaOrphanRemovable2_0 mappingsOrphanRemoval = this.getOrphanRemovalOf(oneToManyMapping);

		assertNull(mappingsOrphanRemoval.getSpecifiedOrphanRemoval());

		JavaResourcePersistentType typeResource = getJpaProject().getJavaResourcePersistentType(FULLY_QUALIFIED_TYPE_NAME);
		JavaResourcePersistentAttribute attributeResource = typeResource.persistableAttributes().next();
		OneToMany2_0Annotation oneToMany = (OneToMany2_0Annotation) attributeResource.getAnnotation(JPA.ONE_TO_MANY);
		oneToMany.setOrphanRemoval(Boolean.FALSE);

		assertEquals(Boolean.FALSE, mappingsOrphanRemoval.getSpecifiedOrphanRemoval());
		
		oneToMany.setOrphanRemoval(null);
		assertNull(mappingsOrphanRemoval.getSpecifiedOrphanRemoval());
		assertSame(oneToManyMapping, persistentAttribute.getSpecifiedMapping());
		
		oneToMany.setOrphanRemoval(Boolean.FALSE);
		attributeResource.setPrimaryAnnotation(null, EmptyIterable.<String>instance());
		
		assertNull(persistentAttribute.getSpecifiedMapping());
	}
	
}