/*******************************************************************************
 * Copyright (c) 2010, 2012 Ericsson
 * 
 * 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
 * 
 * Description:
 * 
 * Contributors:
 *   Alvaro Sanchez-Leon - Initial Implementation and API
 *******************************************************************************/
package org.eclipse.mylyn.reviews.frame.core.model.impl;

import java.util.Collection;

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.util.EObjectContainmentEList;
import org.eclipse.emf.ecore.util.EObjectResolvingEList;
import org.eclipse.emf.ecore.util.InternalEList;
import org.eclipse.mylyn.reviews.frame.core.model.Comment;
import org.eclipse.mylyn.reviews.frame.core.model.Location;
import org.eclipse.mylyn.reviews.frame.core.model.ModelPackage;
import org.eclipse.mylyn.reviews.frame.core.model.Review;
import org.eclipse.mylyn.reviews.frame.core.model.TaskReference;
import org.eclipse.mylyn.reviews.frame.core.model.Topic;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Topic</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.mylyn.reviews.frame.core.model.impl.TopicImpl#getTask <em>Task</em>}</li>
 *   <li>{@link org.eclipse.mylyn.reviews.frame.core.model.impl.TopicImpl#getLocation <em>Location</em>}</li>
 *   <li>{@link org.eclipse.mylyn.reviews.frame.core.model.impl.TopicImpl#getComments <em>Comments</em>}</li>
 *   <li>{@link org.eclipse.mylyn.reviews.frame.core.model.impl.TopicImpl#getReview <em>Review</em>}</li>
 *   <li>{@link org.eclipse.mylyn.reviews.frame.core.model.impl.TopicImpl#getTitle <em>Title</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class TopicImpl extends CommentImpl implements Topic {
	/**
	 * The cached value of the '{@link #getTask() <em>Task</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getTask()
	 * @generated
	 * @ordered
	 */
	protected TaskReference task;

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

	/**
	 * The cached value of the '{@link #getComments() <em>Comments</em>}' reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getComments()
	 * @generated
	 * @ordered
	 */
	protected EList<Comment> comments;

	/**
	 * The cached value of the '{@link #getReview() <em>Review</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getReview()
	 * @generated
	 * @ordered
	 */
	protected Review review;

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

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

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public TaskReference getTask() {
		if (task != null && task.eIsProxy()) {
			InternalEObject oldTask = (InternalEObject)task;
			task = (TaskReference)eResolveProxy(oldTask);
			if (task != oldTask) {
				InternalEObject newTask = (InternalEObject)task;
				NotificationChain msgs = oldTask.eInverseRemove(this, EOPPOSITE_FEATURE_BASE - ModelPackage.TOPIC__TASK, null, null);
				if (newTask.eInternalContainer() == null) {
					msgs = newTask.eInverseAdd(this, EOPPOSITE_FEATURE_BASE - ModelPackage.TOPIC__TASK, null, msgs);
				}
				if (msgs != null) msgs.dispatch();
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE, ModelPackage.TOPIC__TASK, oldTask, task));
			}
		}
		return task;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public TaskReference basicGetTask() {
		return task;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetTask(TaskReference newTask, NotificationChain msgs) {
		TaskReference oldTask = task;
		task = newTask;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, ModelPackage.TOPIC__TASK, oldTask, newTask);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setTask(TaskReference newTask) {
		if (newTask != task) {
			NotificationChain msgs = null;
			if (task != null)
				msgs = ((InternalEObject)task).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - ModelPackage.TOPIC__TASK, null, msgs);
			if (newTask != null)
				msgs = ((InternalEObject)newTask).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - ModelPackage.TOPIC__TASK, null, msgs);
			msgs = basicSetTask(newTask, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, ModelPackage.TOPIC__TASK, newTask, newTask));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EList<Location> getLocation() {
		if (location == null) {
			location = new EObjectContainmentEList.Resolving<Location>(Location.class, this, ModelPackage.TOPIC__LOCATION);
		}
		return location;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EList<Comment> getComments() {
		if (comments == null) {
			comments = new EObjectResolvingEList<Comment>(Comment.class, this, ModelPackage.TOPIC__COMMENTS);
		}
		return comments;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Review getReview() {
		if (review != null && review.eIsProxy()) {
			InternalEObject oldReview = (InternalEObject)review;
			review = (Review)eResolveProxy(oldReview);
			if (review != oldReview) {
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE, ModelPackage.TOPIC__REVIEW, oldReview, review));
			}
		}
		return review;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Review basicGetReview() {
		return review;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setReview(Review newReview) {
		Review oldReview = review;
		review = newReview;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, ModelPackage.TOPIC__REVIEW, oldReview, review));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public String getTitle() {
		return title!= null ? title : "";
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setTitle(String newTitle) {
		String oldTitle = title;
		title = newTitle;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, ModelPackage.TOPIC__TITLE, oldTitle, title));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
			case ModelPackage.TOPIC__TASK:
				return basicSetTask(null, msgs);
			case ModelPackage.TOPIC__LOCATION:
				return ((InternalEList<?>)getLocation()).basicRemove(otherEnd, msgs);
		}
		return super.eInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case ModelPackage.TOPIC__TASK:
				if (resolve) return getTask();
				return basicGetTask();
			case ModelPackage.TOPIC__LOCATION:
				return getLocation();
			case ModelPackage.TOPIC__COMMENTS:
				return getComments();
			case ModelPackage.TOPIC__REVIEW:
				if (resolve) return getReview();
				return basicGetReview();
			case ModelPackage.TOPIC__TITLE:
				return getTitle();
		}
		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 ModelPackage.TOPIC__TASK:
				setTask((TaskReference)newValue);
				return;
			case ModelPackage.TOPIC__LOCATION:
				getLocation().clear();
				getLocation().addAll((Collection<? extends Location>)newValue);
				return;
			case ModelPackage.TOPIC__COMMENTS:
				getComments().clear();
				getComments().addAll((Collection<? extends Comment>)newValue);
				return;
			case ModelPackage.TOPIC__REVIEW:
				setReview((Review)newValue);
				return;
			case ModelPackage.TOPIC__TITLE:
				setTitle((String)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case ModelPackage.TOPIC__TASK:
				setTask((TaskReference)null);
				return;
			case ModelPackage.TOPIC__LOCATION:
				getLocation().clear();
				return;
			case ModelPackage.TOPIC__COMMENTS:
				getComments().clear();
				return;
			case ModelPackage.TOPIC__REVIEW:
				setReview((Review)null);
				return;
			case ModelPackage.TOPIC__TITLE:
				setTitle(TITLE_EDEFAULT);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case ModelPackage.TOPIC__TASK:
				return task != null;
			case ModelPackage.TOPIC__LOCATION:
				return location != null && !location.isEmpty();
			case ModelPackage.TOPIC__COMMENTS:
				return comments != null && !comments.isEmpty();
			case ModelPackage.TOPIC__REVIEW:
				return review != null;
			case ModelPackage.TOPIC__TITLE:
				return TITLE_EDEFAULT == null ? title != null : !TITLE_EDEFAULT.equals(title);
		}
		return super.eIsSet(featureID);
	}

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

		StringBuffer result = new StringBuffer(super.toString());
		result.append(" (title: ");
		result.append(title);
		result.append(')');
		return result.toString();
	}

} //TopicImpl