package org.eclipse.stem.core.graph.impl;
 
/******************************************************************************* 
 * Copyright (c) 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 API and implementation 
 *******************************************************************************/
 
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.NotificationChain;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.stem.core.common.Identifiable;
import org.eclipse.stem.core.graph.DynamicNodeLabel;
import org.eclipse.stem.core.graph.GraphPackage;
import org.eclipse.stem.core.graph.Node;
import org.eclipse.stem.core.graph.NodeLabel;

/**
 * <!-- begin-user-doc --> An implementation of the model object '<em><b>Dynamic Node Label</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.stem.core.graph.impl.DynamicNodeLabelImpl#getNode <em>Node</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public abstract class DynamicNodeLabelImpl extends DynamicLabelImpl implements
		DynamicNodeLabel {
	/**
	 * The cached value of the '{@link #getNode() <em>Node</em>}' reference.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @see #getNode()
	 * @generated
	 * @ordered
	 */
	protected Node node;

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

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

	/**
	 * @see org.eclipse.stem.core.graph.impl.LabelImpl#getIdentifiable()
	 */
	@Override
	public Identifiable getIdentifiable() {
		return getNode();
	} // getIdentifiable

	
	/**
	 * @see org.eclipse.stem.core.graph.impl.LabelImpl#setIdentifiable(org.eclipse.stem.core.common.Identifiable)
	 */
	@Override
	public void setIdentifiable(Identifiable newIdentifiable) {
		setNode((Node)newIdentifiable);
	} // setIdentifiable

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 */
	public Node getNode() {
		if (node != null && node.eIsProxy()) {
			InternalEObject oldNode = (InternalEObject)node;
			node = (Node)eResolveProxy(oldNode);
			if (node != oldNode) {
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE, GraphPackage.DYNAMIC_NODE_LABEL__NODE, oldNode, node));
			}
		}
		return node;
	}

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 */
	public Node basicGetNode() {
		return node;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetNode(Node newNode, NotificationChain msgs) {
		Node oldNode = node;
		node = newNode;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, GraphPackage.DYNAMIC_NODE_LABEL__NODE, oldNode, newNode);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 */
	public void setNode(Node newNode) {
		if (newNode != node) {
			NotificationChain msgs = null;
			if (node != null)
				msgs = ((InternalEObject)node).eInverseRemove(this, GraphPackage.NODE__LABELS, Node.class, msgs);
			if (newNode != null)
				msgs = ((InternalEObject)newNode).eInverseAdd(this, GraphPackage.NODE__LABELS, Node.class, msgs);
			msgs = basicSetNode(newNode, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, GraphPackage.DYNAMIC_NODE_LABEL__NODE, newNode, newNode));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eInverseAdd(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
			case GraphPackage.DYNAMIC_NODE_LABEL__NODE:
				if (node != null)
					msgs = ((InternalEObject)node).eInverseRemove(this, GraphPackage.NODE__LABELS, Node.class, msgs);
				return basicSetNode((Node)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 GraphPackage.DYNAMIC_NODE_LABEL__NODE:
				return basicSetNode(null, msgs);
		}
		return super.eInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	 * @see org.eclipse.stem.graph.impl.DynamicLabelImpl#toString()
	 */
	@Override
	public String toString() {
		final StringBuilder sb = new StringBuilder(super.toString());

		sb.append(" Node:");
		sb.append(getNode() == null ? "null" : getNode().toString());
		return sb.toString();
	} // toString

	/**
	 * @see org.eclipse.stem.graph.impl.DynamicLabelImpl#sane()
	 */
	@Override
	public boolean sane() {
		boolean retValue = super.sane();

		retValue = retValue && getNode() != null ? getURIOfIdentifiableToBeLabeled()
				.equals(getNode().getURI())
				: true;
		assert retValue;
			
		retValue = retValue && getNode() == getIdentifiable();
		assert retValue;
		
		return retValue;
	} // sane

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

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

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case GraphPackage.DYNAMIC_NODE_LABEL__NODE:
				setNode((Node)null);
				return;
		}
		super.eUnset(featureID);
	}

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

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public int eBaseStructuralFeatureID(int derivedFeatureID, Class<?> baseClass) {
		if (baseClass == NodeLabel.class) {
			switch (derivedFeatureID) {
				case GraphPackage.DYNAMIC_NODE_LABEL__NODE: return GraphPackage.NODE_LABEL__NODE;
				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 == NodeLabel.class) {
			switch (baseFeatureID) {
				case GraphPackage.NODE_LABEL__NODE: return GraphPackage.DYNAMIC_NODE_LABEL__NODE;
				default: return -1;
			}
		}
		return super.eDerivedStructuralFeatureID(baseFeatureID, baseClass);
	}

} // DynamicNodeLabelImpl