//------------------------------------------------------------------------------
// 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.EObjectContainmentWithInverseEList;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.ecore.util.InternalEList;
import org.eclipse.epf.uma.Artifact;
import org.eclipse.epf.uma.UmaPackage;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Artifact</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.epf.uma.impl.ArtifactImpl#getContainerArtifact <em>Container Artifact</em>}</li>
 *   <li>{@link org.eclipse.epf.uma.impl.ArtifactImpl#getContainedArtifacts <em>Contained Artifacts</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class ArtifactImpl extends WorkProductImpl implements Artifact {
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	private static final long serialVersionUID = 1L;

	/**
	 * The cached value of the '{@link #getContainedArtifacts() <em>Contained Artifacts</em>}' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getContainedArtifacts()
	 * @generated
	 * @ordered
	 */
	protected EList<Artifact> containedArtifacts;

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

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

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetContainerArtifact(
			Artifact newContainerArtifact, NotificationChain msgs) {
		msgs = eBasicSetContainer((InternalEObject) newContainerArtifact,
				UmaPackage.ARTIFACT__CONTAINER_ARTIFACT, msgs);
		return msgs;
	}

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public List<Artifact> getContainedArtifacts() {
		if (containedArtifacts == null) {
			containedArtifacts = new EObjectContainmentWithInverseEList.Resolving<Artifact>(
					Artifact.class, this,
					UmaPackage.ARTIFACT__CONTAINED_ARTIFACTS,
					UmaPackage.ARTIFACT__CONTAINER_ARTIFACT);
		}
		return containedArtifacts;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@SuppressWarnings("unchecked")
	@Override
	public NotificationChain eInverseAdd(InternalEObject otherEnd,
			int featureID, NotificationChain msgs) {
		switch (featureID) {
		case UmaPackage.ARTIFACT__CONTAINER_ARTIFACT:
			if (eInternalContainer() != null)
				msgs = eBasicRemoveFromContainer(msgs);
			return basicSetContainerArtifact((Artifact) otherEnd, msgs);
		case UmaPackage.ARTIFACT__CONTAINED_ARTIFACTS:
			return ((InternalEList<InternalEObject>) (InternalEList<?>) getContainedArtifacts())
					.basicAdd(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.ARTIFACT__CONTAINER_ARTIFACT:
			return basicSetContainerArtifact(null, msgs);
		case UmaPackage.ARTIFACT__CONTAINED_ARTIFACTS:
			return ((InternalEList<?>) getContainedArtifacts()).basicRemove(
					otherEnd, msgs);
		}
		return super.eInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eBasicRemoveFromContainerFeature(
			NotificationChain msgs) {
		switch (eContainerFeatureID) {
		case UmaPackage.ARTIFACT__CONTAINER_ARTIFACT:
			return eInternalContainer().eInverseRemove(this,
					UmaPackage.ARTIFACT__CONTAINED_ARTIFACTS, Artifact.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.ARTIFACT__CONTAINER_ARTIFACT:
			if (resolve)
				return getContainerArtifact();
			return basicGetContainerArtifact();
		case UmaPackage.ARTIFACT__CONTAINED_ARTIFACTS:
			return getContainedArtifacts();
		}
		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.ARTIFACT__CONTAINER_ARTIFACT:
			setContainerArtifact((Artifact) newValue);
			return;
		case UmaPackage.ARTIFACT__CONTAINED_ARTIFACTS:
			getContainedArtifacts().clear();
			getContainedArtifacts().addAll(
					(Collection<? extends Artifact>) newValue);
			return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
		case UmaPackage.ARTIFACT__CONTAINER_ARTIFACT:
			setContainerArtifact((Artifact) null);
			return;
		case UmaPackage.ARTIFACT__CONTAINED_ARTIFACTS:
			getContainedArtifacts().clear();
			return;
		}
		super.eUnset(featureID);
	}

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

} //ArtifactImpl