/*
 * Copyright (c) 2003, 2005 IBM Corporation 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
 *
 * $Id: RedefinableElementImpl.java,v 1.18 2005/11/09 22:53:09 khussey Exp $
 */
package org.eclipse.uml2.impl;

import java.lang.reflect.Method;

import java.util.Collection;
import java.util.Iterator;
import java.util.List;
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.common.util.UniqueEList;

import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EStructuralFeature;

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

import org.eclipse.uml2.Classifier;
import org.eclipse.uml2.RedefinableElement;
import org.eclipse.uml2.StringExpression;
import org.eclipse.uml2.TemplateSignature;
import org.eclipse.uml2.UML2Package;
import org.eclipse.uml2.VisibilityKind;

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

import org.eclipse.uml2.internal.operation.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.impl.RedefinableElementImpl#getRedefinitionContexts <em>Redefinition Context</em>}</li>
 *   <li>{@link org.eclipse.uml2.impl.RedefinableElementImpl#isLeaf <em>Is Leaf</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public abstract class RedefinableElementImpl extends NamedElementImpl implements RedefinableElement {
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public static final String copyright = "Copyright (c) IBM Corporation and others."; //$NON-NLS-1$

	/**
	 * The cached value of the '{@link #getRedefinitionContexts() <em>Redefinition Context</em>}' reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getRedefinitionContexts()
	 * @generated
	 * @ordered
	 */
	protected EList redefinitionContext = null;

	/**
	 * 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 << 8;

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected EClass eStaticClass() {
		return UML2Package.eINSTANCE.getRedefinableElement();
	}

	/**
	 * <!-- 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, UML2Package.REDEFINABLE_ELEMENT__IS_LEAF, oldIsLeaf, newIsLeaf));

	}


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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated NOT
	 */
	public EList getRedefinitionContexts() {
		if (redefinitionContext == null) {
			redefinitionContext = new DerivedEObjectEList(Classifier.class, this, UML2Package.REDEFINABLE_ELEMENT__REDEFINITION_CONTEXT, new EStructuralFeature[] {UML2Package.eINSTANCE.getElement_Owner()});
		}
		return redefinitionContext;
	}


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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
    public Classifier getRedefinitionContext(String name) {
		for (Iterator i = getRedefinitionContexts().iterator(); i.hasNext(); ) {
			Classifier redefinitionContext = (Classifier) i.next();
			if (name.equals(redefinitionContext.getName())) {
				return redefinitionContext;
			}
		}
		return null;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected EList getRedefinedElementsHelper(EList redefinedElement) {
		return redefinedElement;
	}

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EList getRedefinedElements() {
		CacheAdapter cache = getCacheAdapter();
		if (cache != null) {
			try {
				Method method = getClass().getMethod("getRedefinedElements", null); //$NON-NLS-1$
				EList redefinedElement = (EList) cache.get(eResource(), this, method);
				if (redefinedElement == null) {
					List union = getRedefinedElementsHelper(new UniqueEList());
					cache.put(eResource(), this, method, redefinedElement = new UnionEObjectEList(this, null, union.size(), union.toArray()));
				}
				return redefinedElement;
			} catch (NoSuchMethodException nsme) {
				// ignore
			}
		}
		List union = getRedefinedElementsHelper(new UniqueEList());
		return new UnionEObjectEList(this, null, union.size(), union.toArray());
	}

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


	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
    public RedefinableElement getRedefinedElement(String name) {
		for (Iterator i = getRedefinedElements().iterator(); i.hasNext(); ) {
			RedefinableElement redefinedElement = (RedefinableElement) i.next();
			if (name.equals(redefinedElement.getName())) {
				return redefinedElement;
			}
		}
		return null;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Object eGet(EStructuralFeature eFeature, boolean resolve) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case UML2Package.REDEFINABLE_ELEMENT__EANNOTATIONS:
				return getEAnnotations();
			case UML2Package.REDEFINABLE_ELEMENT__OWNED_ELEMENT:
				return getOwnedElements();
			case UML2Package.REDEFINABLE_ELEMENT__OWNER:
				if (resolve) return getOwner();
				return basicGetOwner();
			case UML2Package.REDEFINABLE_ELEMENT__OWNED_COMMENT:
				return getOwnedComments();
			case UML2Package.REDEFINABLE_ELEMENT__TEMPLATE_BINDING:
				return getTemplateBindings();
			case UML2Package.REDEFINABLE_ELEMENT__OWNED_TEMPLATE_SIGNATURE:
				return getOwnedTemplateSignature();
			case UML2Package.REDEFINABLE_ELEMENT__NAME:
				return getName();
			case UML2Package.REDEFINABLE_ELEMENT__QUALIFIED_NAME:
				return getQualifiedName();
			case UML2Package.REDEFINABLE_ELEMENT__VISIBILITY:
				return getVisibility();
			case UML2Package.REDEFINABLE_ELEMENT__CLIENT_DEPENDENCY:
				return getClientDependencies();
			case UML2Package.REDEFINABLE_ELEMENT__NAME_EXPRESSION:
				return getNameExpression();
			case UML2Package.REDEFINABLE_ELEMENT__REDEFINITION_CONTEXT:
				return getRedefinitionContexts();
			case UML2Package.REDEFINABLE_ELEMENT__IS_LEAF:
				return isLeaf() ? Boolean.TRUE : Boolean.FALSE;
		}
		return eDynamicGet(eFeature, resolve);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void eSet(EStructuralFeature eFeature, Object newValue) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case UML2Package.REDEFINABLE_ELEMENT__EANNOTATIONS:
				getEAnnotations().clear();
				getEAnnotations().addAll((Collection)newValue);
				return;
			case UML2Package.REDEFINABLE_ELEMENT__OWNED_COMMENT:
				getOwnedComments().clear();
				getOwnedComments().addAll((Collection)newValue);
				return;
			case UML2Package.REDEFINABLE_ELEMENT__TEMPLATE_BINDING:
				getTemplateBindings().clear();
				getTemplateBindings().addAll((Collection)newValue);
				return;
			case UML2Package.REDEFINABLE_ELEMENT__OWNED_TEMPLATE_SIGNATURE:
				setOwnedTemplateSignature((TemplateSignature)newValue);
				return;
			case UML2Package.REDEFINABLE_ELEMENT__NAME:
				setName((String)newValue);
				return;
			case UML2Package.REDEFINABLE_ELEMENT__VISIBILITY:
				setVisibility((VisibilityKind)newValue);
				return;
			case UML2Package.REDEFINABLE_ELEMENT__CLIENT_DEPENDENCY:
				getClientDependencies().clear();
				getClientDependencies().addAll((Collection)newValue);
				return;
			case UML2Package.REDEFINABLE_ELEMENT__NAME_EXPRESSION:
				setNameExpression((StringExpression)newValue);
				return;
			case UML2Package.REDEFINABLE_ELEMENT__IS_LEAF:
				setIsLeaf(((Boolean)newValue).booleanValue());
				return;
		}
		eDynamicSet(eFeature, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void eUnset(EStructuralFeature eFeature) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case UML2Package.REDEFINABLE_ELEMENT__EANNOTATIONS:
				getEAnnotations().clear();
				return;
			case UML2Package.REDEFINABLE_ELEMENT__OWNED_COMMENT:
				getOwnedComments().clear();
				return;
			case UML2Package.REDEFINABLE_ELEMENT__TEMPLATE_BINDING:
				getTemplateBindings().clear();
				return;
			case UML2Package.REDEFINABLE_ELEMENT__OWNED_TEMPLATE_SIGNATURE:
				setOwnedTemplateSignature((TemplateSignature)null);
				return;
			case UML2Package.REDEFINABLE_ELEMENT__NAME:
				setName(NAME_EDEFAULT);
				return;
			case UML2Package.REDEFINABLE_ELEMENT__VISIBILITY:
				setVisibility(VISIBILITY_EDEFAULT);
				return;
			case UML2Package.REDEFINABLE_ELEMENT__CLIENT_DEPENDENCY:
				getClientDependencies().clear();
				return;
			case UML2Package.REDEFINABLE_ELEMENT__NAME_EXPRESSION:
				setNameExpression((StringExpression)null);
				return;
			case UML2Package.REDEFINABLE_ELEMENT__IS_LEAF:
				setIsLeaf(IS_LEAF_EDEFAULT);
				return;
		}
		eDynamicUnset(eFeature);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean eIsSet(EStructuralFeature eFeature) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case UML2Package.REDEFINABLE_ELEMENT__EANNOTATIONS:
				return eAnnotations != null && !eAnnotations.isEmpty();
			case UML2Package.REDEFINABLE_ELEMENT__OWNED_ELEMENT:
				return isSetOwnedElements();
			case UML2Package.REDEFINABLE_ELEMENT__OWNER:
				return isSetOwner();
			case UML2Package.REDEFINABLE_ELEMENT__OWNED_COMMENT:
				return ownedComment != null && !ownedComment.isEmpty();
			case UML2Package.REDEFINABLE_ELEMENT__TEMPLATE_BINDING:
				return templateBinding != null && !templateBinding.isEmpty();
			case UML2Package.REDEFINABLE_ELEMENT__OWNED_TEMPLATE_SIGNATURE:
				return ownedTemplateSignature != null;
			case UML2Package.REDEFINABLE_ELEMENT__NAME:
				return NAME_EDEFAULT == null ? name != null : !NAME_EDEFAULT.equals(name);
			case UML2Package.REDEFINABLE_ELEMENT__QUALIFIED_NAME:
				return QUALIFIED_NAME_EDEFAULT == null ? getQualifiedName() != null : !QUALIFIED_NAME_EDEFAULT.equals(getQualifiedName());
			case UML2Package.REDEFINABLE_ELEMENT__VISIBILITY:
				return visibility != VISIBILITY_EDEFAULT;
			case UML2Package.REDEFINABLE_ELEMENT__CLIENT_DEPENDENCY:
				return clientDependency != null && !clientDependency.isEmpty();
			case UML2Package.REDEFINABLE_ELEMENT__NAME_EXPRESSION:
				return nameExpression != null;
			case UML2Package.REDEFINABLE_ELEMENT__REDEFINITION_CONTEXT:
				return isSetRedefinitionContexts();
			case UML2Package.REDEFINABLE_ELEMENT__IS_LEAF:
				return ((eFlags & IS_LEAF_EFLAG) != 0) != IS_LEAF_EDEFAULT;
		}
		return eDynamicIsSet(eFeature);
	}

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


} //RedefinableElementImpl