/*******************************************************************************
 *  Copyright (c) 2010  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.jpa.core.resource.orm;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.jdt.core.IType;
import org.eclipse.jpt.common.core.internal.utility.translators.SimpleTranslator;
import org.eclipse.jpt.common.core.utility.TextRange;
import org.eclipse.jpt.jpa.core.resource.xml.AbstractJpaEObject;
import org.eclipse.jpt.jpa.core.resource.xml.JpaEObject;
import org.eclipse.text.edits.ReplaceEdit;
import org.eclipse.wst.common.internal.emf.resource.Translator;

/**
 * <!-- begin-user-doc -->
 * A representation of the model object '<em><b>Xml Class Reference</b></em>'.
 * <!-- end-user-doc -->
 *
 * <p>
 * The following features are supported:
 * <ul>
 *   <li>{@link org.eclipse.jpt.jpa.core.resource.orm.XmlClassReference#getClassName <em>Class Name</em>}</li>
 * </ul>
 * </p>
 *
 * @see org.eclipse.jpt.jpa.core.resource.orm.OrmPackage#getXmlClassReference()
 * @model kind="class"
 * @extends JpaEObject
 * @generated
 */
public class XmlClassReference extends AbstractJpaEObject implements JpaEObject
{
	/**
	 * The default value of the '{@link #getClassName() <em>Class Name</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getClassName()
	 * @generated
	 * @ordered
	 */
	protected static final String CLASS_NAME_EDEFAULT = null;

	/**
	 * The cached value of the '{@link #getClassName() <em>Class Name</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getClassName()
	 * @generated
	 * @ordered
	 */
	protected String className = CLASS_NAME_EDEFAULT;

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected XmlClassReference()
	{
		super();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	protected EClass eStaticClass()
	{
		return OrmPackage.Literals.XML_CLASS_REFERENCE;
	}

	/**
	 * Returns the value of the '<em><b>Class Name</b></em>' attribute.
	 * <!-- begin-user-doc -->
	 * <p>
	 * If the meaning of the '<em>Class Name</em>' attribute isn't clear,
	 * there really should be more of a description here...
	 * </p>
	 * <!-- end-user-doc -->
	 * @return the value of the '<em>Class Name</em>' attribute.
	 * @see #setClassName(String)
	 * @see org.eclipse.jpt.jpa.core.resource.orm.OrmPackage#getXmlClassReference_ClassName()
	 * @model dataType="org.eclipse.emf.ecore.xml.type.String" required="true"
	 * @generated
	 */
	public String getClassName()
	{
		return className;
	}

	/**
	 * Sets the value of the '{@link org.eclipse.jpt.jpa.core.resource.orm.XmlClassReference#getClassName <em>Class Name</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Class Name</em>' attribute.
	 * @see #getClassName()
	 * @generated
	 */
	public void setClassName(String newClassName)
	{
		String oldClassName = className;
		className = newClassName;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, OrmPackage.XML_CLASS_REFERENCE__CLASS_NAME, oldClassName, className));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType)
	{
		switch (featureID)
		{
			case OrmPackage.XML_CLASS_REFERENCE__CLASS_NAME:
				return getClassName();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue)
	{
		switch (featureID)
		{
			case OrmPackage.XML_CLASS_REFERENCE__CLASS_NAME:
				setClassName((String)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID)
	{
		switch (featureID)
		{
			case OrmPackage.XML_CLASS_REFERENCE__CLASS_NAME:
				setClassName(CLASS_NAME_EDEFAULT);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID)
	{
		switch (featureID)
		{
			case OrmPackage.XML_CLASS_REFERENCE__CLASS_NAME:
				return CLASS_NAME_EDEFAULT == null ? className != null : !CLASS_NAME_EDEFAULT.equals(className);
		}
		return super.eIsSet(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public String toString()
	{
		if (eIsProxy()) return super.toString();

		StringBuffer result = new StringBuffer(super.toString());
		result.append(" (className: ");
		result.append(className);
		result.append(')');
		return result.toString();
	}
	
	
	// **************** validation ********************************************
	
	public TextRange getClassNameTextRange() {
		return getAttributeTextRange(JPA.CLASS);
	}
	
	
	// ********** translators **********
	
	public static Translator buildTranslator(String elementName, EStructuralFeature structuralFeature) {
		return new SimpleTranslator(
			elementName,
			structuralFeature,
			Translator.END_TAG_NO_INDENT,
			buildTranslatorChildren()
		);
	}

	private static Translator[] buildTranslatorChildren() {
		return new Translator[] {
			buildClassTranslator()};
	}
	
	private static Translator buildClassTranslator() {
		return new Translator(JPA.CLASS, OrmPackage.eINSTANCE.getXmlClassReference_ClassName(), Translator.DOM_ATTRIBUTE);
	}

	public ReplaceEdit createRenameEdit(IType originalType, String newName) {
		String originalName = originalType.getTypeQualifiedName();
		int nameIndex = this.className.lastIndexOf(originalName);

		int offset = getAttributeNode(JPA.CLASS).getValueRegionStartOffset() + 1;
		return new ReplaceEdit(offset + nameIndex, originalName.length(), newName);
	}

	public ReplaceEdit createRenamePackageEdit(String newName) {
		int packageLength = this.className.lastIndexOf('.');
		int offset = getAttributeNode(JPA.CLASS).getValueRegionStartOffset() + 1; // +1 = opening double quote
		return new ReplaceEdit(offset, packageLength, newName);
	}

}