/*
 * Copyright (c) 2005, 2008 IBM Corporation, Embarcadero Technologies, and others.
 * 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:
 *   IBM - initial API and implementation
 *   Kenn Hussey (Embarcadero Technologies) - 204200
 *
 * $Id: RedefinableElementImpl.java,v 1.19 2008/04/21 16:32:42 khussey Exp $
 */
package org.eclipse.uml2.uml.internal.impl;

import java.util.Collection;
import java.util.Map;

import org.eclipse.emf.common.notify.Notification;

import org.eclipse.emf.common.util.DiagnosticChain;

import org.eclipse.emf.common.util.EList;

import org.eclipse.emf.ecore.EAnnotation;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.impl.ENotificationImpl;

import org.eclipse.emf.ecore.resource.Resource;

import org.eclipse.uml2.common.util.CacheAdapter;
import org.eclipse.uml2.common.util.DerivedEObjectEList;
import org.eclipse.uml2.common.util.DerivedUnionEObjectEList;

import org.eclipse.uml2.uml.Classifier;
import org.eclipse.uml2.uml.Comment;
import org.eclipse.uml2.uml.Dependency;
import org.eclipse.uml2.uml.RedefinableElement;
import org.eclipse.uml2.uml.StringExpression;
import org.eclipse.uml2.uml.UMLPackage;
import org.eclipse.uml2.uml.VisibilityKind;

import org.eclipse.uml2.uml.internal.operations.RedefinableElementOperations;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Redefinable Element</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.uml2.uml.internal.impl.RedefinableElementImpl#getRedefinedElements <em>Redefined Element</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.internal.impl.RedefinableElementImpl#getRedefinitionContexts <em>Redefinition Context</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.internal.impl.RedefinableElementImpl#isLeaf <em>Is Leaf</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public abstract class RedefinableElementImpl
		extends NamedElementImpl
		implements RedefinableElement {

	/**
	 * The default value of the '{@link #isLeaf() <em>Is Leaf</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #isLeaf()
	 * @generated
	 * @ordered
	 */
	protected static final boolean IS_LEAF_EDEFAULT = false;

	/**
	 * The flag representing the value of the '{@link #isLeaf() <em>Is Leaf</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #isLeaf()
	 * @generated
	 * @ordered
	 */
	protected static final int IS_LEAF_EFLAG = 1 << 12;

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EList<RedefinableElement> getRedefinedElements() {
		CacheAdapter cache = getCacheAdapter();
		if (cache != null) {
			Resource eResource = eResource();
			@SuppressWarnings("unchecked")
			EList<RedefinableElement> redefinedElements = (EList<RedefinableElement>) cache
				.get(eResource, this,
					UMLPackage.Literals.REDEFINABLE_ELEMENT__REDEFINED_ELEMENT);
			if (redefinedElements == null) {
				cache
					.put(
						eResource,
						this,
						UMLPackage.Literals.REDEFINABLE_ELEMENT__REDEFINED_ELEMENT,
						redefinedElements = new DerivedUnionEObjectEList<RedefinableElement>(
							RedefinableElement.class, this,
							UMLPackage.REDEFINABLE_ELEMENT__REDEFINED_ELEMENT,
							null));
			}
			return redefinedElements;
		}
		return new DerivedUnionEObjectEList<RedefinableElement>(
			RedefinableElement.class, this,
			UMLPackage.REDEFINABLE_ELEMENT__REDEFINED_ELEMENT, null);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public RedefinableElement getRedefinedElement(String name) {
		return getRedefinedElement(name, false, null);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public RedefinableElement getRedefinedElement(String name,
			boolean ignoreCase, EClass eClass) {
		redefinedElementLoop : for (RedefinableElement redefinedElement : getRedefinedElements()) {
			if (eClass != null && !eClass.isInstance(redefinedElement))
				continue redefinedElementLoop;
			if (name != null && !(ignoreCase
				? name.equalsIgnoreCase(redefinedElement.getName())
				: name.equals(redefinedElement.getName())))
				continue redefinedElementLoop;
			return redefinedElement;
		}
		return null;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EList<Classifier> getRedefinitionContextsGen() {
		CacheAdapter cache = getCacheAdapter();
		if (cache != null) {
			Resource eResource = eResource();
			@SuppressWarnings("unchecked")
			EList<Classifier> redefinitionContexts = (EList<Classifier>) cache
				.get(
					eResource,
					this,
					UMLPackage.Literals.REDEFINABLE_ELEMENT__REDEFINITION_CONTEXT);
			if (redefinitionContexts == null) {
				cache
					.put(
						eResource,
						this,
						UMLPackage.Literals.REDEFINABLE_ELEMENT__REDEFINITION_CONTEXT,
						redefinitionContexts = new DerivedUnionEObjectEList<Classifier>(
							Classifier.class,
							this,
							UMLPackage.REDEFINABLE_ELEMENT__REDEFINITION_CONTEXT,
							null));
			}
			return redefinitionContexts;
		}
		return new DerivedUnionEObjectEList<Classifier>(Classifier.class, this,
			UMLPackage.REDEFINABLE_ELEMENT__REDEFINITION_CONTEXT, null);
	}

	/**
	 * The array of subset feature identifiers for the '{@link #getRedefinitionContexts() <em>Redefinition Context</em>}' reference list.
	 * @see #getRedefinitionContexts()
	 */
	protected static final int[] REDEFINITION_CONTEXT_ESUBSETS = new int[]{UMLPackage.REDEFINABLE_ELEMENT__OWNER};

	public EList<Classifier> getRedefinitionContexts() {
		CacheAdapter cache = getCacheAdapter();
		if (cache != null) {
			Resource eResource = eResource();
			@SuppressWarnings("unchecked")
			EList<Classifier> redefinitionContexts = (EList<Classifier>) cache
				.get(
					eResource,
					this,
					UMLPackage.Literals.REDEFINABLE_ELEMENT__REDEFINITION_CONTEXT);
			if (redefinitionContexts == null) {
				cache
					.put(
						eResource,
						this,
						UMLPackage.Literals.REDEFINABLE_ELEMENT__REDEFINITION_CONTEXT,
						redefinitionContexts = new DerivedEObjectEList<Classifier>(
							Classifier.class,
							this,
							UMLPackage.REDEFINABLE_ELEMENT__REDEFINITION_CONTEXT,
							REDEFINITION_CONTEXT_ESUBSETS));
			}
			return redefinitionContexts;
		}
		return new DerivedEObjectEList<Classifier>(Classifier.class, this,
			UMLPackage.REDEFINABLE_ELEMENT__REDEFINITION_CONTEXT,
			REDEFINITION_CONTEXT_ESUBSETS);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Classifier getRedefinitionContext(String name) {
		return getRedefinitionContext(name, false, null);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Classifier getRedefinitionContext(String name, boolean ignoreCase,
			EClass eClass) {
		redefinitionContextLoop : for (Classifier redefinitionContext : getRedefinitionContexts()) {
			if (eClass != null && !eClass.isInstance(redefinitionContext))
				continue redefinitionContextLoop;
			if (name != null && !(ignoreCase
				? name.equalsIgnoreCase(redefinitionContext.getName())
				: name.equals(redefinitionContext.getName())))
				continue redefinitionContextLoop;
			return redefinitionContext;
		}
		return null;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean isLeaf() {
		return (eFlags & IS_LEAF_EFLAG) != 0;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setIsLeaf(boolean newIsLeaf) {
		boolean oldIsLeaf = (eFlags & IS_LEAF_EFLAG) != 0;
		if (newIsLeaf)
			eFlags |= IS_LEAF_EFLAG;
		else
			eFlags &= ~IS_LEAF_EFLAG;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
				UMLPackage.REDEFINABLE_ELEMENT__IS_LEAF, oldIsLeaf, newIsLeaf));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean validateRedefinitionContextValid(
			DiagnosticChain diagnostics, Map<Object, Object> context) {
		return RedefinableElementOperations.validateRedefinitionContextValid(
			this, diagnostics, context);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean validateRedefinitionConsistent(DiagnosticChain diagnostics,
			Map<Object, Object> context) {
		return RedefinableElementOperations.validateRedefinitionConsistent(
			this, diagnostics, context);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean isRedefinitionContextValid(RedefinableElement redefined) {
		return RedefinableElementOperations.isRedefinitionContextValid(this,
			redefined);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case UMLPackage.REDEFINABLE_ELEMENT__EANNOTATIONS :
				return getEAnnotations();
			case UMLPackage.REDEFINABLE_ELEMENT__OWNED_ELEMENT :
				return getOwnedElements();
			case UMLPackage.REDEFINABLE_ELEMENT__OWNER :
				if (resolve)
					return getOwner();
				return basicGetOwner();
			case UMLPackage.REDEFINABLE_ELEMENT__OWNED_COMMENT :
				return getOwnedComments();
			case UMLPackage.REDEFINABLE_ELEMENT__NAME :
				return getName();
			case UMLPackage.REDEFINABLE_ELEMENT__VISIBILITY :
				return getVisibility();
			case UMLPackage.REDEFINABLE_ELEMENT__QUALIFIED_NAME :
				return getQualifiedName();
			case UMLPackage.REDEFINABLE_ELEMENT__CLIENT_DEPENDENCY :
				return getClientDependencies();
			case UMLPackage.REDEFINABLE_ELEMENT__NAMESPACE :
				if (resolve)
					return getNamespace();
				return basicGetNamespace();
			case UMLPackage.REDEFINABLE_ELEMENT__NAME_EXPRESSION :
				if (resolve)
					return getNameExpression();
				return basicGetNameExpression();
			case UMLPackage.REDEFINABLE_ELEMENT__IS_LEAF :
				return isLeaf()
					? Boolean.TRUE
					: Boolean.FALSE;
			case UMLPackage.REDEFINABLE_ELEMENT__REDEFINED_ELEMENT :
				return getRedefinedElements();
			case UMLPackage.REDEFINABLE_ELEMENT__REDEFINITION_CONTEXT :
				return getRedefinitionContexts();
		}
		return eDynamicGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@SuppressWarnings("unchecked")
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case UMLPackage.REDEFINABLE_ELEMENT__EANNOTATIONS :
				getEAnnotations().clear();
				getEAnnotations().addAll(
					(Collection<? extends EAnnotation>) newValue);
				return;
			case UMLPackage.REDEFINABLE_ELEMENT__OWNED_COMMENT :
				getOwnedComments().clear();
				getOwnedComments().addAll(
					(Collection<? extends Comment>) newValue);
				return;
			case UMLPackage.REDEFINABLE_ELEMENT__NAME :
				setName((String) newValue);
				return;
			case UMLPackage.REDEFINABLE_ELEMENT__VISIBILITY :
				setVisibility((VisibilityKind) newValue);
				return;
			case UMLPackage.REDEFINABLE_ELEMENT__CLIENT_DEPENDENCY :
				getClientDependencies().clear();
				getClientDependencies().addAll(
					(Collection<? extends Dependency>) newValue);
				return;
			case UMLPackage.REDEFINABLE_ELEMENT__NAME_EXPRESSION :
				setNameExpression((StringExpression) newValue);
				return;
			case UMLPackage.REDEFINABLE_ELEMENT__IS_LEAF :
				setIsLeaf(((Boolean) newValue).booleanValue());
				return;
		}
		eDynamicSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case UMLPackage.REDEFINABLE_ELEMENT__EANNOTATIONS :
				getEAnnotations().clear();
				return;
			case UMLPackage.REDEFINABLE_ELEMENT__OWNED_COMMENT :
				getOwnedComments().clear();
				return;
			case UMLPackage.REDEFINABLE_ELEMENT__NAME :
				unsetName();
				return;
			case UMLPackage.REDEFINABLE_ELEMENT__VISIBILITY :
				unsetVisibility();
				return;
			case UMLPackage.REDEFINABLE_ELEMENT__CLIENT_DEPENDENCY :
				getClientDependencies().clear();
				return;
			case UMLPackage.REDEFINABLE_ELEMENT__NAME_EXPRESSION :
				setNameExpression((StringExpression) null);
				return;
			case UMLPackage.REDEFINABLE_ELEMENT__IS_LEAF :
				setIsLeaf(IS_LEAF_EDEFAULT);
				return;
		}
		eDynamicUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case UMLPackage.REDEFINABLE_ELEMENT__EANNOTATIONS :
				return eAnnotations != null && !eAnnotations.isEmpty();
			case UMLPackage.REDEFINABLE_ELEMENT__OWNED_ELEMENT :
				return isSetOwnedElements();
			case UMLPackage.REDEFINABLE_ELEMENT__OWNER :
				return isSetOwner();
			case UMLPackage.REDEFINABLE_ELEMENT__OWNED_COMMENT :
				return ownedComments != null && !ownedComments.isEmpty();
			case UMLPackage.REDEFINABLE_ELEMENT__NAME :
				return isSetName();
			case UMLPackage.REDEFINABLE_ELEMENT__VISIBILITY :
				return isSetVisibility();
			case UMLPackage.REDEFINABLE_ELEMENT__QUALIFIED_NAME :
				return QUALIFIED_NAME_EDEFAULT == null
					? getQualifiedName() != null
					: !QUALIFIED_NAME_EDEFAULT.equals(getQualifiedName());
			case UMLPackage.REDEFINABLE_ELEMENT__CLIENT_DEPENDENCY :
				return clientDependencies != null
					&& !clientDependencies.isEmpty();
			case UMLPackage.REDEFINABLE_ELEMENT__NAMESPACE :
				return isSetNamespace();
			case UMLPackage.REDEFINABLE_ELEMENT__NAME_EXPRESSION :
				return nameExpression != null;
			case UMLPackage.REDEFINABLE_ELEMENT__IS_LEAF :
				return ((eFlags & IS_LEAF_EFLAG) != 0) != IS_LEAF_EDEFAULT;
			case UMLPackage.REDEFINABLE_ELEMENT__REDEFINED_ELEMENT :
				return isSetRedefinedElements();
			case UMLPackage.REDEFINABLE_ELEMENT__REDEFINITION_CONTEXT :
				return isSetRedefinitionContexts();
		}
		return eDynamicIsSet(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean isConsistentWith(RedefinableElement redefinee) {
		return RedefinableElementOperations.isConsistentWith(this, redefinee);
	}

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

		StringBuffer result = new StringBuffer(super.toString());
		result.append(" (isLeaf: "); //$NON-NLS-1$
		result.append((eFlags & IS_LEAF_EFLAG) != 0);
		result.append(')');
		return result.toString();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean isSetRedefinedElements() {
		return false;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean isSetRedefinitionContextsGen() {
		return false;
	}

	public boolean isSetRedefinitionContexts() {
		return getOwner() instanceof Classifier;
	}

} //RedefinableElementImpl