/*******************************************************************************
 * Copyright (c) 2006, 2018 IBM Corporation, Zeligsoft Inc., and others.
 * All rights reserved.   This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v2.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v20.html
 * 
 * Contributors:
 *   IBM - Initial API and implementation
 *   Zeligsoft - Bug 241426
 *******************************************************************************/
package org.eclipse.ocl.ecore.impl;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EClassifier;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EOperation;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.impl.EClassifierImpl;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.ocl.ecore.EcorePackage;
import org.eclipse.ocl.ecore.TypeType;
import org.eclipse.ocl.ecore.internal.OCLStandardLibraryImpl;
import org.eclipse.ocl.types.TypesPackage;
import org.eclipse.ocl.utilities.PredefinedType;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Type Type</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * </p>
 * <ul>
 *   <li>{@link org.eclipse.ocl.ecore.impl.TypeTypeImpl#getReferredType <em>Referred Type</em>}</li>
 * </ul>
 *
 * @generated
 */
public class TypeTypeImpl
		extends EClassifierImpl
		implements TypeType {

	private EList<EOperation> operations;

	/**
	 * The cached value of the '{@link #getReferredType() <em>Referred Type</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getReferredType()
	 * @generated
	 * @ordered
	 */
	protected EClassifier referredType;

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated NOT
	 */
	protected TypeTypeImpl(EClassifier referredType) {
		this();

		this.referredType = referredType;
	}

	public static TypeType createTypeType(EClassifier referredType) {
		return new TypeTypeImpl(referredType);
	}

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EClassifier getReferredType() {
		if (referredType != null && ((EObject) referredType).eIsProxy()) {
			InternalEObject oldReferredType = (InternalEObject) referredType;
			referredType = (EClassifier) eResolveProxy(oldReferredType);
			if (referredType != oldReferredType) {
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE,
						EcorePackage.TYPE_TYPE__REFERRED_TYPE, oldReferredType,
						referredType));
			}
		}
		return referredType;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EClassifier basicGetReferredType() {
		return referredType;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setReferredType(EClassifier newReferredType) {
		EClassifier oldReferredType = referredType;
		referredType = newReferredType;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
				EcorePackage.TYPE_TYPE__REFERRED_TYPE, oldReferredType,
				referredType));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated NOT
	 */
	@Override
	public String getName() {
		if (name == null) {
			EClassifier ref = getReferredType();
			if (this == OCLStandardLibraryImpl.INSTANCE.getOclType()) {
				name = SINGLETON_NAME;
			} else if (ref != null) {
				name = ref.getName();
			}
		}

		return name;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated NOT
	 */
	public EList<EOperation> oclOperations() {
		if (operations == null) {
			TypeType prototype = (TypeType) OCLStandardLibraryImpl.INSTANCE
				.getOclType();

			if (prototype == this) {
				// I *am* the standard library type!
				operations = OCLStandardLibraryImpl.getExistingOperations(this);
			} else {
				// the prototype defines my operations for me
				operations = prototype.oclOperations();
			}
		}

		return operations;
	}

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case EcorePackage.TYPE_TYPE__REFERRED_TYPE :
				setReferredType((EClassifier) null);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case EcorePackage.TYPE_TYPE__REFERRED_TYPE :
				return referredType != null;
		}
		return super.eIsSet(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public int eBaseStructuralFeatureID(int derivedFeatureID,
			Class<?> baseClass) {
		if (baseClass == PredefinedType.class) {
			switch (derivedFeatureID) {
				default :
					return -1;
			}
		}
		if (baseClass == org.eclipse.ocl.types.TypeType.class) {
			switch (derivedFeatureID) {
				case EcorePackage.TYPE_TYPE__REFERRED_TYPE :
					return TypesPackage.TYPE_TYPE__REFERRED_TYPE;
				default :
					return -1;
			}
		}
		return super.eBaseStructuralFeatureID(derivedFeatureID, baseClass);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public int eDerivedStructuralFeatureID(int baseFeatureID,
			Class<?> baseClass) {
		if (baseClass == PredefinedType.class) {
			switch (baseFeatureID) {
				default :
					return -1;
			}
		}
		if (baseClass == org.eclipse.ocl.types.TypeType.class) {
			switch (baseFeatureID) {
				case TypesPackage.TYPE_TYPE__REFERRED_TYPE :
					return EcorePackage.TYPE_TYPE__REFERRED_TYPE;
				default :
					return -1;
			}
		}
		return super.eDerivedStructuralFeatureID(baseFeatureID, baseClass);
	}

} //TypeTypeImpl