/*
 * Copyright (c) 2003, 2004 IBM Corporation and others.
 * All rights reserved.   This program and the accompanying materials
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 *
 * Contributors:
 *   IBM - Initial API and implementation
 *
 * $Id: InformationFlowImpl.java,v 1.5 2004/06/15 16:13:32 khussey Exp $
 */
package org.eclipse.uml2.impl;

import java.util.Collection;

import java.util.Iterator;

import java.util.LinkedHashSet;
import java.util.Set;

import org.eclipse.emf.common.notify.NotificationChain;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.util.EObjectResolvingEList;
import org.eclipse.emf.ecore.util.EcoreEList;
import org.eclipse.emf.ecore.util.InternalEList;
import org.eclipse.uml2.Classifier;
import org.eclipse.uml2.DirectedRelationship;
import org.eclipse.uml2.InformationFlow;
import org.eclipse.uml2.Relationship;
import org.eclipse.uml2.StringExpression;
import org.eclipse.uml2.TemplateParameter;
import org.eclipse.uml2.TemplateSignature;
import org.eclipse.uml2.UML2Package;

import org.eclipse.uml2.VisibilityKind;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Information Flow</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.uml2.impl.InformationFlowImpl#getRelatedElements <em>Related Element</em>}</li>
 *   <li>{@link org.eclipse.uml2.impl.InformationFlowImpl#getSources <em>Source</em>}</li>
 *   <li>{@link org.eclipse.uml2.impl.InformationFlowImpl#getTargets <em>Target</em>}</li>
 *   <li>{@link org.eclipse.uml2.impl.InformationFlowImpl#getRealizations <em>Realization</em>}</li>
 *   <li>{@link org.eclipse.uml2.impl.InformationFlowImpl#getConveyeds <em>Conveyed</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class InformationFlowImpl extends PackageableElementImpl implements InformationFlow {
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public static final String copyright = "Copyright (c) 2003, 2004 IBM Corporation and others."; //$NON-NLS-1$

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

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

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EList getRelatedElements() {
		EList relatedElement = (EList) getCacheAdapter().get(this, UML2Package.eINSTANCE.getRelationship_RelatedElement());

		if (null == relatedElement) {
			Set union = new LinkedHashSet();

			relatedElement = new EcoreEList.UnmodifiableEList(this, UML2Package.eINSTANCE.getRelationship_RelatedElement(), union.size(), union.toArray());
			getCacheAdapter().put(this, UML2Package.eINSTANCE.getRelationship_RelatedElement(), relatedElement);
		}

		return relatedElement;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EList getSources() {
		EList source = (EList) getCacheAdapter().get(this, UML2Package.eINSTANCE.getDirectedRelationship_Source());

		if (null == source) {
			Set union = new LinkedHashSet();

			source = new EcoreEList.UnmodifiableEList(this, UML2Package.eINSTANCE.getDirectedRelationship_Source(), union.size(), union.toArray());
			getCacheAdapter().put(this, UML2Package.eINSTANCE.getDirectedRelationship_Source(), source);
		}

		return source;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EList getTargets() {
		EList target = (EList) getCacheAdapter().get(this, UML2Package.eINSTANCE.getDirectedRelationship_Target());

		if (null == target) {
			Set union = new LinkedHashSet();

			target = new EcoreEList.UnmodifiableEList(this, UML2Package.eINSTANCE.getDirectedRelationship_Target(), union.size(), union.toArray());
			getCacheAdapter().put(this, UML2Package.eINSTANCE.getDirectedRelationship_Target(), target);
		}

		return target;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EList getRealizations() {
		if (realization == null) {
			realization = new EObjectResolvingEList(Relationship.class, this, UML2Package.INFORMATION_FLOW__REALIZATION);
		}
		return realization;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EList getConveyeds() {
		if (conveyed == null) {
			conveyed = new EObjectResolvingEList(Classifier.class, this, UML2Package.INFORMATION_FLOW__CONVEYED);
		}
		return conveyed;
	}

    /**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
     */
    public Classifier getConveyed(String unqualifiedName) {
    	for (Iterator i = getConveyeds().iterator(); i.hasNext(); ) {
    		Classifier namedConveyed = (Classifier) i.next();
    		
    		if (unqualifiedName.equals(namedConveyed.getName())) {
    			return namedConveyed;
    		}
    	}
    	
    	return null;
    }
      
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain eInverseAdd(InternalEObject otherEnd, int featureID, Class baseClass, NotificationChain msgs) {
		if (featureID >= 0) {
			switch (eDerivedStructuralFeatureID(featureID, baseClass)) {
				case UML2Package.INFORMATION_FLOW__EANNOTATIONS:
					return ((InternalEList)getEAnnotations()).basicAdd(otherEnd, msgs);
				case UML2Package.INFORMATION_FLOW__TEMPLATE_BINDING:
					return ((InternalEList)getTemplateBindings()).basicAdd(otherEnd, msgs);
				case UML2Package.INFORMATION_FLOW__OWNED_TEMPLATE_SIGNATURE:
					if (ownedTemplateSignature != null)
						msgs = ((InternalEObject)ownedTemplateSignature).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - UML2Package.INFORMATION_FLOW__OWNED_TEMPLATE_SIGNATURE, null, msgs);
					return basicSetOwnedTemplateSignature((TemplateSignature)otherEnd, msgs);
				case UML2Package.INFORMATION_FLOW__CLIENT_DEPENDENCY:
					return ((InternalEList)getClientDependencies()).basicAdd(otherEnd, msgs);
				case UML2Package.INFORMATION_FLOW__TEMPLATE_PARAMETER:
					if (templateParameter != null)
						msgs = ((InternalEObject)templateParameter).eInverseRemove(this, UML2Package.TEMPLATE_PARAMETER__PARAMETERED_ELEMENT, TemplateParameter.class, msgs);
					return basicSetTemplateParameter((TemplateParameter)otherEnd, msgs);
				case UML2Package.INFORMATION_FLOW__OWNING_PARAMETER:
					if (eContainer != null)
						msgs = eBasicRemoveFromContainer(msgs);
					return eBasicSetContainer(otherEnd, UML2Package.INFORMATION_FLOW__OWNING_PARAMETER, msgs);
				default:
					return eDynamicInverseAdd(otherEnd, featureID, baseClass, msgs);
			}
		}
		if (eContainer != null)
			msgs = eBasicRemoveFromContainer(msgs);
		return eBasicSetContainer(otherEnd, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, Class baseClass, NotificationChain msgs) {
		if (featureID >= 0) {
			switch (eDerivedStructuralFeatureID(featureID, baseClass)) {
				case UML2Package.INFORMATION_FLOW__EANNOTATIONS:
					return ((InternalEList)getEAnnotations()).basicRemove(otherEnd, msgs);
				case UML2Package.INFORMATION_FLOW__OWNED_COMMENT:
					return ((InternalEList)getOwnedComments()).basicRemove(otherEnd, msgs);
				case UML2Package.INFORMATION_FLOW__TEMPLATE_BINDING:
					return ((InternalEList)getTemplateBindings()).basicRemove(otherEnd, msgs);
				case UML2Package.INFORMATION_FLOW__OWNED_TEMPLATE_SIGNATURE:
					return basicSetOwnedTemplateSignature(null, msgs);
				case UML2Package.INFORMATION_FLOW__CLIENT_DEPENDENCY:
					return ((InternalEList)getClientDependencies()).basicRemove(otherEnd, msgs);
				case UML2Package.INFORMATION_FLOW__NAME_EXPRESSION:
					return basicSetNameExpression(null, msgs);
				case UML2Package.INFORMATION_FLOW__TEMPLATE_PARAMETER:
					return basicSetTemplateParameter(null, msgs);
				case UML2Package.INFORMATION_FLOW__OWNING_PARAMETER:
					return eBasicSetContainer(null, UML2Package.INFORMATION_FLOW__OWNING_PARAMETER, msgs);
				default:
					return eDynamicInverseRemove(otherEnd, featureID, baseClass, msgs);
			}
		}
		return eBasicSetContainer(null, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain eBasicRemoveFromContainer(NotificationChain msgs) {
		if (eContainerFeatureID >= 0) {
			switch (eContainerFeatureID) {
				case UML2Package.INFORMATION_FLOW__OWNING_PARAMETER:
					return eContainer.eInverseRemove(this, UML2Package.TEMPLATE_PARAMETER__OWNED_PARAMETERED_ELEMENT, TemplateParameter.class, msgs);
				default:
					return eDynamicBasicRemoveFromContainer(msgs);
			}
		}
		return eContainer.eInverseRemove(this, EOPPOSITE_FEATURE_BASE - eContainerFeatureID, null, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Object eGet(EStructuralFeature eFeature, boolean resolve) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case UML2Package.INFORMATION_FLOW__EANNOTATIONS:
				return getEAnnotations();
			case UML2Package.INFORMATION_FLOW__OWNED_ELEMENT:
				return getOwnedElements();
			case UML2Package.INFORMATION_FLOW__OWNER:
				if (resolve) return getOwner();
				return basicGetOwner();
			case UML2Package.INFORMATION_FLOW__OWNED_COMMENT:
				return getOwnedComments();
			case UML2Package.INFORMATION_FLOW__TEMPLATE_BINDING:
				return getTemplateBindings();
			case UML2Package.INFORMATION_FLOW__OWNED_TEMPLATE_SIGNATURE:
				return getOwnedTemplateSignature();
			case UML2Package.INFORMATION_FLOW__NAME:
				return getName();
			case UML2Package.INFORMATION_FLOW__QUALIFIED_NAME:
				return getQualifiedName();
			case UML2Package.INFORMATION_FLOW__VISIBILITY:
				return getVisibility();
			case UML2Package.INFORMATION_FLOW__CLIENT_DEPENDENCY:
				return getClientDependencies();
			case UML2Package.INFORMATION_FLOW__NAME_EXPRESSION:
				return getNameExpression();
			case UML2Package.INFORMATION_FLOW__TEMPLATE_PARAMETER:
				if (resolve) return getTemplateParameter();
				return basicGetTemplateParameter();
			case UML2Package.INFORMATION_FLOW__OWNING_PARAMETER:
				return getOwningParameter();
			case UML2Package.INFORMATION_FLOW__PACKAGEABLE_ELEMENT_VISIBILITY:
				return getPackageableElement_visibility();
			case UML2Package.INFORMATION_FLOW__RELATED_ELEMENT:
				return getRelatedElements();
			case UML2Package.INFORMATION_FLOW__SOURCE:
				return getSources();
			case UML2Package.INFORMATION_FLOW__TARGET:
				return getTargets();
			case UML2Package.INFORMATION_FLOW__REALIZATION:
				return getRealizations();
			case UML2Package.INFORMATION_FLOW__CONVEYED:
				return getConveyeds();
		}
		return eDynamicGet(eFeature, resolve);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void eSet(EStructuralFeature eFeature, Object newValue) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case UML2Package.INFORMATION_FLOW__EANNOTATIONS:
				getEAnnotations().clear();
				getEAnnotations().addAll((Collection)newValue);
				return;
			case UML2Package.INFORMATION_FLOW__OWNED_COMMENT:
				getOwnedComments().clear();
				getOwnedComments().addAll((Collection)newValue);
				return;
			case UML2Package.INFORMATION_FLOW__TEMPLATE_BINDING:
				getTemplateBindings().clear();
				getTemplateBindings().addAll((Collection)newValue);
				return;
			case UML2Package.INFORMATION_FLOW__OWNED_TEMPLATE_SIGNATURE:
				setOwnedTemplateSignature((TemplateSignature)newValue);
				return;
			case UML2Package.INFORMATION_FLOW__NAME:
				setName((String)newValue);
				return;
			case UML2Package.INFORMATION_FLOW__VISIBILITY:
				setVisibility((VisibilityKind)newValue);
				return;
			case UML2Package.INFORMATION_FLOW__CLIENT_DEPENDENCY:
				getClientDependencies().clear();
				getClientDependencies().addAll((Collection)newValue);
				return;
			case UML2Package.INFORMATION_FLOW__NAME_EXPRESSION:
				setNameExpression((StringExpression)newValue);
				return;
			case UML2Package.INFORMATION_FLOW__TEMPLATE_PARAMETER:
				setTemplateParameter((TemplateParameter)newValue);
				return;
			case UML2Package.INFORMATION_FLOW__OWNING_PARAMETER:
				setOwningParameter((TemplateParameter)newValue);
				return;
			case UML2Package.INFORMATION_FLOW__PACKAGEABLE_ELEMENT_VISIBILITY:
				setPackageableElement_visibility((VisibilityKind)newValue);
				return;
			case UML2Package.INFORMATION_FLOW__REALIZATION:
				getRealizations().clear();
				getRealizations().addAll((Collection)newValue);
				return;
			case UML2Package.INFORMATION_FLOW__CONVEYED:
				getConveyeds().clear();
				getConveyeds().addAll((Collection)newValue);
				return;
		}
		eDynamicSet(eFeature, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void eUnset(EStructuralFeature eFeature) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case UML2Package.INFORMATION_FLOW__EANNOTATIONS:
				getEAnnotations().clear();
				return;
			case UML2Package.INFORMATION_FLOW__OWNED_COMMENT:
				getOwnedComments().clear();
				return;
			case UML2Package.INFORMATION_FLOW__TEMPLATE_BINDING:
				getTemplateBindings().clear();
				return;
			case UML2Package.INFORMATION_FLOW__OWNED_TEMPLATE_SIGNATURE:
				setOwnedTemplateSignature((TemplateSignature)null);
				return;
			case UML2Package.INFORMATION_FLOW__NAME:
				setName(NAME_EDEFAULT);
				return;
			case UML2Package.INFORMATION_FLOW__VISIBILITY:
				setVisibility(VISIBILITY_EDEFAULT);
				return;
			case UML2Package.INFORMATION_FLOW__CLIENT_DEPENDENCY:
				getClientDependencies().clear();
				return;
			case UML2Package.INFORMATION_FLOW__NAME_EXPRESSION:
				setNameExpression((StringExpression)null);
				return;
			case UML2Package.INFORMATION_FLOW__TEMPLATE_PARAMETER:
				setTemplateParameter((TemplateParameter)null);
				return;
			case UML2Package.INFORMATION_FLOW__OWNING_PARAMETER:
				setOwningParameter(null);
				return;
			case UML2Package.INFORMATION_FLOW__PACKAGEABLE_ELEMENT_VISIBILITY:
				setPackageableElement_visibility(PACKAGEABLE_ELEMENT_VISIBILITY_EDEFAULT);
				return;
			case UML2Package.INFORMATION_FLOW__REALIZATION:
				getRealizations().clear();
				return;
			case UML2Package.INFORMATION_FLOW__CONVEYED:
				getConveyeds().clear();
				return;
		}
		eDynamicUnset(eFeature);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean eIsSet(EStructuralFeature eFeature) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case UML2Package.INFORMATION_FLOW__EANNOTATIONS:
				return eAnnotations != null && !eAnnotations.isEmpty();
			case UML2Package.INFORMATION_FLOW__OWNED_ELEMENT:
				return !getOwnedElements().isEmpty();
			case UML2Package.INFORMATION_FLOW__OWNER:
				return basicGetOwner() != null;
			case UML2Package.INFORMATION_FLOW__OWNED_COMMENT:
				return ownedComment != null && !ownedComment.isEmpty();
			case UML2Package.INFORMATION_FLOW__TEMPLATE_BINDING:
				return templateBinding != null && !templateBinding.isEmpty();
			case UML2Package.INFORMATION_FLOW__OWNED_TEMPLATE_SIGNATURE:
				return ownedTemplateSignature != null;
			case UML2Package.INFORMATION_FLOW__NAME:
				return NAME_EDEFAULT == null ? name != null : !NAME_EDEFAULT.equals(name);
			case UML2Package.INFORMATION_FLOW__QUALIFIED_NAME:
				return !"".equals(getQualifiedName()); //$NON-NLS-1$
			case UML2Package.INFORMATION_FLOW__VISIBILITY:
				return getVisibility() != VisibilityKind.PUBLIC_LITERAL;
			case UML2Package.INFORMATION_FLOW__CLIENT_DEPENDENCY:
				return clientDependency != null && !clientDependency.isEmpty();
			case UML2Package.INFORMATION_FLOW__NAME_EXPRESSION:
				return nameExpression != null;
			case UML2Package.INFORMATION_FLOW__TEMPLATE_PARAMETER:
				return templateParameter != null;
			case UML2Package.INFORMATION_FLOW__OWNING_PARAMETER:
				return getOwningParameter() != null;
			case UML2Package.INFORMATION_FLOW__PACKAGEABLE_ELEMENT_VISIBILITY:
				return packageableElement_visibility != PACKAGEABLE_ELEMENT_VISIBILITY_EDEFAULT;
			case UML2Package.INFORMATION_FLOW__RELATED_ELEMENT:
				return !getRelatedElements().isEmpty();
			case UML2Package.INFORMATION_FLOW__SOURCE:
				return !getSources().isEmpty();
			case UML2Package.INFORMATION_FLOW__TARGET:
				return !getTargets().isEmpty();
			case UML2Package.INFORMATION_FLOW__REALIZATION:
				return realization != null && !realization.isEmpty();
			case UML2Package.INFORMATION_FLOW__CONVEYED:
				return conveyed != null && !conveyed.isEmpty();
		}
		return eDynamicIsSet(eFeature);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public int eBaseStructuralFeatureID(int derivedFeatureID, Class baseClass) {
		if (baseClass == Relationship.class) {
			switch (derivedFeatureID) {
				case UML2Package.INFORMATION_FLOW__RELATED_ELEMENT: return UML2Package.RELATIONSHIP__RELATED_ELEMENT;
				default: return -1;
			}
		}
		if (baseClass == DirectedRelationship.class) {
			switch (derivedFeatureID) {
				case UML2Package.INFORMATION_FLOW__SOURCE: return UML2Package.DIRECTED_RELATIONSHIP__SOURCE;
				case UML2Package.INFORMATION_FLOW__TARGET: return UML2Package.DIRECTED_RELATIONSHIP__TARGET;
				default: return -1;
			}
		}
		return super.eBaseStructuralFeatureID(derivedFeatureID, baseClass);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public int eDerivedStructuralFeatureID(int baseFeatureID, Class baseClass) {
		if (baseClass == Relationship.class) {
			switch (baseFeatureID) {
				case UML2Package.RELATIONSHIP__RELATED_ELEMENT: return UML2Package.INFORMATION_FLOW__RELATED_ELEMENT;
				default: return -1;
			}
		}
		if (baseClass == DirectedRelationship.class) {
			switch (baseFeatureID) {
				case UML2Package.DIRECTED_RELATIONSHIP__SOURCE: return UML2Package.INFORMATION_FLOW__SOURCE;
				case UML2Package.DIRECTED_RELATIONSHIP__TARGET: return UML2Package.INFORMATION_FLOW__TARGET;
				default: return -1;
			}
		}
		return super.eDerivedStructuralFeatureID(baseFeatureID, baseClass);
	}

} //InformationFlowImpl