//------------------------------------------------------------------------------
// Copyright (c) 2005, 2006 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 Corporation - initial implementation
//------------------------------------------------------------------------------
package org.eclipse.epf.uma.impl;

import java.util.Collection;
import java.util.List;

import org.eclipse.emf.common.notify.Notification;
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.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.emf.ecore.util.EObjectWithInverseResolvingEList;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.ecore.util.InternalEList;
import org.eclipse.epf.uma.GraphConnector;
import org.eclipse.epf.uma.GraphEdge;
import org.eclipse.epf.uma.GraphElement;
import org.eclipse.epf.uma.UmaPackage;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Graph Connector</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.epf.uma.impl.GraphConnectorImpl#getGraphEdge <em>Graph Edge</em>}</li>
 *   <li>{@link org.eclipse.epf.uma.impl.GraphConnectorImpl#getGraphElement <em>Graph Element</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class GraphConnectorImpl extends GraphElementImpl implements
		GraphConnector {
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	private static final long serialVersionUID = 1L;

	/**
	 * The cached value of the '{@link #getGraphEdge() <em>Graph Edge</em>}' reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getGraphEdge()
	 * @generated
	 * @ordered
	 */
	protected EList<GraphEdge> graphEdge;

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public GraphElement getGraphElement() {
		if (eContainerFeatureID != UmaPackage.GRAPH_CONNECTOR__GRAPH_ELEMENT)
			return null;
		return (GraphElement) eContainer();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public GraphElement basicGetGraphElement() {
		if (eContainerFeatureID != UmaPackage.GRAPH_CONNECTOR__GRAPH_ELEMENT)
			return null;
		return (GraphElement) eInternalContainer();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetGraphElement(GraphElement newGraphElement,
			NotificationChain msgs) {
		msgs = eBasicSetContainer((InternalEObject) newGraphElement,
				UmaPackage.GRAPH_CONNECTOR__GRAPH_ELEMENT, msgs);
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setGraphElement(GraphElement newGraphElement) {
		if (newGraphElement != eInternalContainer()
				|| (eContainerFeatureID != UmaPackage.GRAPH_CONNECTOR__GRAPH_ELEMENT && newGraphElement != null)) {
			if (EcoreUtil.isAncestor(this, (EObject) newGraphElement))
				throw new IllegalArgumentException(
						"Recursive containment not allowed for " + toString()); //$NON-NLS-1$
			NotificationChain msgs = null;
			if (eInternalContainer() != null)
				msgs = eBasicRemoveFromContainer(msgs);
			if (newGraphElement != null)
				msgs = ((InternalEObject) newGraphElement).eInverseAdd(this,
						UmaPackage.GRAPH_ELEMENT__ANCHORAGE,
						GraphElement.class, msgs);
			msgs = basicSetGraphElement(newGraphElement, msgs);
			if (msgs != null)
				msgs.dispatch();
		} else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
					UmaPackage.GRAPH_CONNECTOR__GRAPH_ELEMENT, newGraphElement,
					newGraphElement));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public List<GraphEdge> getGraphEdge() {
		if (graphEdge == null) {
			graphEdge = new EObjectWithInverseResolvingEList.ManyInverse<GraphEdge>(
					GraphEdge.class, this,
					UmaPackage.GRAPH_CONNECTOR__GRAPH_EDGE,
					UmaPackage.GRAPH_EDGE__ANCHOR);
		}
		return graphEdge;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@SuppressWarnings("unchecked")
	@Override
	public NotificationChain eInverseAdd(InternalEObject otherEnd,
			int featureID, NotificationChain msgs) {
		switch (featureID) {
		case UmaPackage.GRAPH_CONNECTOR__GRAPH_EDGE:
			return ((InternalEList<InternalEObject>) (InternalEList<?>) getGraphEdge())
					.basicAdd(otherEnd, msgs);
		case UmaPackage.GRAPH_CONNECTOR__GRAPH_ELEMENT:
			if (eInternalContainer() != null)
				msgs = eBasicRemoveFromContainer(msgs);
			return basicSetGraphElement((GraphElement) otherEnd, msgs);
		}
		return super.eInverseAdd(otherEnd, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd,
			int featureID, NotificationChain msgs) {
		switch (featureID) {
		case UmaPackage.GRAPH_CONNECTOR__GRAPH_EDGE:
			return ((InternalEList<?>) getGraphEdge()).basicRemove(otherEnd,
					msgs);
		case UmaPackage.GRAPH_CONNECTOR__GRAPH_ELEMENT:
			return basicSetGraphElement(null, msgs);
		}
		return super.eInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eBasicRemoveFromContainerFeature(
			NotificationChain msgs) {
		switch (eContainerFeatureID) {
		case UmaPackage.GRAPH_CONNECTOR__GRAPH_ELEMENT:
			return eInternalContainer().eInverseRemove(this,
					UmaPackage.GRAPH_ELEMENT__ANCHORAGE, GraphElement.class,
					msgs);
		}
		return super.eBasicRemoveFromContainerFeature(msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
		case UmaPackage.GRAPH_CONNECTOR__GRAPH_EDGE:
			return getGraphEdge();
		case UmaPackage.GRAPH_CONNECTOR__GRAPH_ELEMENT:
			if (resolve)
				return getGraphElement();
			return basicGetGraphElement();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@SuppressWarnings("unchecked")
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
		case UmaPackage.GRAPH_CONNECTOR__GRAPH_EDGE:
			getGraphEdge().clear();
			getGraphEdge().addAll((Collection<? extends GraphEdge>) newValue);
			return;
		case UmaPackage.GRAPH_CONNECTOR__GRAPH_ELEMENT:
			setGraphElement((GraphElement) newValue);
			return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
		case UmaPackage.GRAPH_CONNECTOR__GRAPH_EDGE:
			getGraphEdge().clear();
			return;
		case UmaPackage.GRAPH_CONNECTOR__GRAPH_ELEMENT:
			setGraphElement((GraphElement) null);
			return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
		case UmaPackage.GRAPH_CONNECTOR__GRAPH_EDGE:
			return graphEdge != null && !graphEdge.isEmpty();
		case UmaPackage.GRAPH_CONNECTOR__GRAPH_ELEMENT:
			return basicGetGraphElement() != null;
		}
		return super.eIsSet(featureID);
	}

} //GraphConnectorImpl