/*******************************************************************************
 * Copyright (c) 2007, 2010 BMW Car IT, Technische Universitaet Muenchen, 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:
 * BMW Car IT - Initial API and implementation
 * Technische Universitaet Muenchen - Major refactoring and extension
 *******************************************************************************/
package org.eclipse.emf.edapt.spi.history.impl;

import java.util.Collection;
import java.util.Date;

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.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.emf.ecore.impl.EObjectImpl;
import org.eclipse.emf.ecore.util.EObjectContainmentEList;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.ecore.util.InternalEList;
import org.eclipse.emf.edapt.spi.history.Change;
import org.eclipse.emf.edapt.spi.history.History;
import org.eclipse.emf.edapt.spi.history.HistoryPackage;
import org.eclipse.emf.edapt.spi.history.Release;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Release</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 * <li>{@link org.eclipse.emf.edapt.spi.history.impl.ReleaseImpl#getDate <em>Date</em>}</li>
 * <li>{@link org.eclipse.emf.edapt.spi.history.impl.ReleaseImpl#getChanges <em>Changes</em>}</li>
 * <li>{@link org.eclipse.emf.edapt.spi.history.impl.ReleaseImpl#getHistory <em>History</em>}</li>
 * <li>{@link org.eclipse.emf.edapt.spi.history.impl.ReleaseImpl#getLabel <em>Label</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class ReleaseImpl extends EObjectImpl implements Release {
	/**
	 * The default value of the '{@link #getDate() <em>Date</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @see #getDate()
	 * @generated
	 * @ordered
	 */
	protected static final Date DATE_EDEFAULT = null;

	/**
	 * The cached value of the '{@link #getDate() <em>Date</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @see #getDate()
	 * @generated
	 * @ordered
	 */
	protected Date date = DATE_EDEFAULT;

	/**
	 * The cached value of the '{@link #getChanges() <em>Changes</em>}' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @see #getChanges()
	 * @generated
	 * @ordered
	 */
	protected EList<Change> changes;

	/**
	 * The default value of the '{@link #getLabel() <em>Label</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @see #getLabel()
	 * @generated
	 * @ordered
	 */
	protected static final String LABEL_EDEFAULT = null;

	/**
	 * The cached value of the '{@link #getLabel() <em>Label</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @see #getLabel()
	 * @generated
	 * @ordered
	 */
	protected String label = LABEL_EDEFAULT;

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated NOT
	 */
	@Override
	public int getNumber() {
		return getHistory().getReleases().indexOf(this);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated NOT
	 */
	@Override
	public boolean isLatestRelease() {
		return getHistory().getLatestRelease() == this;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public Date getDate() {
		return date;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public void setDate(Date newDate) {
		final Date oldDate = date;
		date = newDate;
		if (eNotificationRequired()) {
			eNotify(new ENotificationImpl(this, Notification.SET, HistoryPackage.RELEASE__DATE, oldDate, date));
		}
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public EList<Change> getChanges() {
		if (changes == null) {
			changes = new EObjectContainmentEList<Change>(Change.class, this, HistoryPackage.RELEASE__CHANGES);
		}
		return changes;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public History getHistory() {
		if (eContainerFeatureID() != HistoryPackage.RELEASE__HISTORY) {
			return null;
		}
		return (History) eContainer();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	public NotificationChain basicSetHistory(History newHistory, NotificationChain msgs) {
		msgs = eBasicSetContainer((InternalEObject) newHistory, HistoryPackage.RELEASE__HISTORY, msgs);
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public void setHistory(History newHistory) {
		if (newHistory != eInternalContainer()
			|| eContainerFeatureID() != HistoryPackage.RELEASE__HISTORY && newHistory != null) {
			if (EcoreUtil.isAncestor(this, newHistory)) {
				throw new IllegalArgumentException("Recursive containment not allowed for " + toString()); //$NON-NLS-1$
			}
			NotificationChain msgs = null;
			if (eInternalContainer() != null) {
				msgs = eBasicRemoveFromContainer(msgs);
			}
			if (newHistory != null) {
				msgs = ((InternalEObject) newHistory).eInverseAdd(this, HistoryPackage.HISTORY__RELEASES,
					History.class, msgs);
			}
			msgs = basicSetHistory(newHistory, msgs);
			if (msgs != null) {
				msgs.dispatch();
			}
		}
		else if (eNotificationRequired()) {
			eNotify(new ENotificationImpl(this, Notification.SET, HistoryPackage.RELEASE__HISTORY, newHistory,
				newHistory));
		}
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public String getLabel() {
		return label;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public void setLabel(String newLabel) {
		final String oldLabel = label;
		label = newLabel;
		if (eNotificationRequired()) {
			eNotify(new ENotificationImpl(this, Notification.SET, HistoryPackage.RELEASE__LABEL, oldLabel, label));
		}
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated NOT
	 */
	@Override
	public Release getNextRelease() {
		if (isLastRelease()) {
			return null;
		}
		return getHistory().getReleases().get(getNumber() + 1);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated NOT
	 */
	@Override
	public Release getPreviousRelease() {
		if (isFirstRelease()) {
			return null;
		}
		return getHistory().getReleases().get(getNumber() - 1);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated NOT
	 */
	@Override
	public boolean isFirstRelease() {
		return getHistory().getFirstRelease() == this;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated NOT
	 */
	@Override
	public boolean isLastRelease() {
		return getHistory().getLastRelease() == this;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public NotificationChain eInverseAdd(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
		case HistoryPackage.RELEASE__HISTORY:
			if (eInternalContainer() != null) {
				msgs = eBasicRemoveFromContainer(msgs);
			}
			return basicSetHistory((History) 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 HistoryPackage.RELEASE__CHANGES:
			return ((InternalEList<?>) getChanges()).basicRemove(otherEnd, msgs);
		case HistoryPackage.RELEASE__HISTORY:
			return basicSetHistory(null, msgs);
		}
		return super.eInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public NotificationChain eBasicRemoveFromContainerFeature(NotificationChain msgs) {
		switch (eContainerFeatureID()) {
		case HistoryPackage.RELEASE__HISTORY:
			return eInternalContainer().eInverseRemove(this, HistoryPackage.HISTORY__RELEASES, History.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 HistoryPackage.RELEASE__DATE:
			return getDate();
		case HistoryPackage.RELEASE__CHANGES:
			return getChanges();
		case HistoryPackage.RELEASE__HISTORY:
			return getHistory();
		case HistoryPackage.RELEASE__LABEL:
			return getLabel();
		}
		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 HistoryPackage.RELEASE__DATE:
			setDate((Date) newValue);
			return;
		case HistoryPackage.RELEASE__CHANGES:
			getChanges().clear();
			getChanges().addAll((Collection<? extends Change>) newValue);
			return;
		case HistoryPackage.RELEASE__HISTORY:
			setHistory((History) newValue);
			return;
		case HistoryPackage.RELEASE__LABEL:
			setLabel((String) newValue);
			return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
		case HistoryPackage.RELEASE__DATE:
			setDate(DATE_EDEFAULT);
			return;
		case HistoryPackage.RELEASE__CHANGES:
			getChanges().clear();
			return;
		case HistoryPackage.RELEASE__HISTORY:
			setHistory((History) null);
			return;
		case HistoryPackage.RELEASE__LABEL:
			setLabel(LABEL_EDEFAULT);
			return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
		case HistoryPackage.RELEASE__DATE:
			return DATE_EDEFAULT == null ? date != null : !DATE_EDEFAULT.equals(date);
		case HistoryPackage.RELEASE__CHANGES:
			return changes != null && !changes.isEmpty();
		case HistoryPackage.RELEASE__HISTORY:
			return getHistory() != null;
		case HistoryPackage.RELEASE__LABEL:
			return LABEL_EDEFAULT == null ? label != null : !LABEL_EDEFAULT.equals(label);
		}
		return super.eIsSet(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public String toString() {
		if (eIsProxy()) {
			return super.toString();
		}

		final StringBuffer result = new StringBuffer(super.toString());
		result.append(" (date: "); //$NON-NLS-1$
		result.append(date);
		result.append(", label: "); //$NON-NLS-1$
		result.append(label);
		result.append(')');
		return result.toString();
	}

} // ReleaseImpl