/*******************************************************************************
 * Copyright (c) 2001, 2004 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
 *******************************************************************************/
package org.eclipse.jst.j2ee.internal.webapplication.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.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.impl.EObjectImpl;
import org.eclipse.emf.ecore.util.EDataTypeUniqueEList;
import org.eclipse.emf.ecore.util.EObjectContainmentEList;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.ecore.util.InternalEList;
import org.eclipse.jst.j2ee.common.Description;
import org.eclipse.jst.j2ee.internal.webapplication.WebapplicationPackage;
import org.eclipse.jst.j2ee.webapplication.AuthConstraint;
import org.eclipse.jst.j2ee.webapplication.SecurityConstraint;


/**
 * The auth-constraint element indicates the user roles that should be permitted access to this resource collection. The role used here must appear in a security-role-ref element.
 */
public class AuthConstraintImpl extends EObjectImpl implements AuthConstraint, EObject {

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

	/**
	 * @generated This field/method will be replaced during code generation.
	 */
	/**
	 * @generated This field/method will be replaced during code generation.
	 */
	protected String description = DESCRIPTION_EDEFAULT;
	/**
	 * @generated This field/method will be replaced during code generation.
	 */
	protected EList roles = null;
	/**
	 * The cached value of the '{@link #getDescriptions() <em>Descriptions</em>}' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getDescriptions()
	 * @generated
	 * @ordered
	 */
	protected EList descriptions = null;

	public AuthConstraintImpl() {
		super();
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected EClass eStaticClass() {
		return WebapplicationPackage.eINSTANCE.getAuthConstraint();
	}

	/**
	 * @generated This field/method will be replaced during code generation 
	 * A description of the auth constraint.
	 */
	public String getDescription() {
		return description;
	}

	/**
	 * @generated This field/method will be replaced during code generation.
	 */
	public void setDescription(String newDescription) {
		String oldDescription = description;
		description = newDescription;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, WebapplicationPackage.AUTH_CONSTRAINT__DESCRIPTION, oldDescription, description));
	}

	/**
	 * @generated This field/method will be replaced during code generation 
	 * A list of role names for the auth constraint.  Each element specifies the name
	 * of a security role (a String).

	 */
	public EList getRoles() {
		if (roles == null) {
			roles = new EDataTypeUniqueEList(String.class, this, WebapplicationPackage.AUTH_CONSTRAINT__ROLES);
		}
		return roles;
	}

	/**
	 * @generated This field/method will be replaced during code generation 
	 */
	public SecurityConstraint getSecConstraint() {
		if (eContainerFeatureID != WebapplicationPackage.AUTH_CONSTRAINT__SEC_CONSTRAINT) return null;
		return (SecurityConstraint)eContainer;
	}

	/**
	 * @generated This field/method will be replaced during code generation.
	 */
	public void setSecConstraint(SecurityConstraint newSecConstraint) {
		if (newSecConstraint != eContainer || (eContainerFeatureID != WebapplicationPackage.AUTH_CONSTRAINT__SEC_CONSTRAINT && newSecConstraint != null)) {
			if (EcoreUtil.isAncestor(this, newSecConstraint))
				throw new IllegalArgumentException("Recursive containment not allowed for " + toString());//$NON-NLS-1$
			NotificationChain msgs = null;
			if (eContainer != null)
				msgs = eBasicRemoveFromContainer(msgs);
			if (newSecConstraint != null)
				msgs = ((InternalEObject)newSecConstraint).eInverseAdd(this, WebapplicationPackage.SECURITY_CONSTRAINT__AUTH_CONSTRAINT, SecurityConstraint.class, msgs);
			msgs = eBasicSetContainer((InternalEObject)newSecConstraint, WebapplicationPackage.AUTH_CONSTRAINT__SEC_CONSTRAINT, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, WebapplicationPackage.AUTH_CONSTRAINT__SEC_CONSTRAINT, newSecConstraint, newSecConstraint));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EList getDescriptions() {
		if (descriptions == null) {
			descriptions = new EObjectContainmentEList(Description.class, this, WebapplicationPackage.AUTH_CONSTRAINT__DESCRIPTIONS);
		}
		return descriptions;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain eInverseAdd(InternalEObject otherEnd, int featureID, Class baseClass, NotificationChain msgs) {
		if (featureID >= 0) {
			switch (eDerivedStructuralFeatureID(featureID, baseClass)) {
				case WebapplicationPackage.AUTH_CONSTRAINT__SEC_CONSTRAINT:
					if (eContainer != null)
						msgs = eBasicRemoveFromContainer(msgs);
					return eBasicSetContainer(otherEnd, WebapplicationPackage.AUTH_CONSTRAINT__SEC_CONSTRAINT, msgs);
				default:
					return eDynamicInverseAdd(otherEnd, featureID, baseClass, msgs);
			}
		}
		if (eContainer != null)
			msgs = eBasicRemoveFromContainer(msgs);
		return eBasicSetContainer(otherEnd, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, Class baseClass, NotificationChain msgs) {
		if (featureID >= 0) {
			switch (eDerivedStructuralFeatureID(featureID, baseClass)) {
				case WebapplicationPackage.AUTH_CONSTRAINT__SEC_CONSTRAINT:
					return eBasicSetContainer(null, WebapplicationPackage.AUTH_CONSTRAINT__SEC_CONSTRAINT, msgs);
				case WebapplicationPackage.AUTH_CONSTRAINT__DESCRIPTIONS:
					return ((InternalEList)getDescriptions()).basicRemove(otherEnd, msgs);
				default:
					return eDynamicInverseRemove(otherEnd, featureID, baseClass, msgs);
			}
		}
		return eBasicSetContainer(null, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain eBasicRemoveFromContainer(NotificationChain msgs) {
		if (eContainerFeatureID >= 0) {
			switch (eContainerFeatureID) {
				case WebapplicationPackage.AUTH_CONSTRAINT__SEC_CONSTRAINT:
					return eContainer.eInverseRemove(this, WebapplicationPackage.SECURITY_CONSTRAINT__AUTH_CONSTRAINT, SecurityConstraint.class, msgs);
				default:
					return eDynamicBasicRemoveFromContainer(msgs);
			}
		}
		return eContainer.eInverseRemove(this, EOPPOSITE_FEATURE_BASE - eContainerFeatureID, null, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Object eGet(EStructuralFeature eFeature, boolean resolve) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case WebapplicationPackage.AUTH_CONSTRAINT__DESCRIPTION:
				return getDescription();
			case WebapplicationPackage.AUTH_CONSTRAINT__ROLES:
				return getRoles();
			case WebapplicationPackage.AUTH_CONSTRAINT__SEC_CONSTRAINT:
				return getSecConstraint();
			case WebapplicationPackage.AUTH_CONSTRAINT__DESCRIPTIONS:
				return getDescriptions();
		}
		return eDynamicGet(eFeature, resolve);
	}

	/**
	 * @generated This field/method will be replaced during code generation.
	 */
	public boolean eIsSet(EStructuralFeature eFeature) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case WebapplicationPackage.AUTH_CONSTRAINT__DESCRIPTION:
				return DESCRIPTION_EDEFAULT == null ? description != null : !DESCRIPTION_EDEFAULT.equals(description);
			case WebapplicationPackage.AUTH_CONSTRAINT__ROLES:
				return roles != null && !roles.isEmpty();
			case WebapplicationPackage.AUTH_CONSTRAINT__SEC_CONSTRAINT:
				return getSecConstraint() != null;
			case WebapplicationPackage.AUTH_CONSTRAINT__DESCRIPTIONS:
				return descriptions != null && !descriptions.isEmpty();
		}
		return eDynamicIsSet(eFeature);
	}

	/**
	 * @generated This field/method will be replaced during code generation.
	 */
	public void eSet(EStructuralFeature eFeature, Object newValue) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case WebapplicationPackage.AUTH_CONSTRAINT__DESCRIPTION:
				setDescription((String)newValue);
				return;
			case WebapplicationPackage.AUTH_CONSTRAINT__ROLES:
				getRoles().clear();
				getRoles().addAll((Collection)newValue);
				return;
			case WebapplicationPackage.AUTH_CONSTRAINT__SEC_CONSTRAINT:
				setSecConstraint((SecurityConstraint)newValue);
				return;
			case WebapplicationPackage.AUTH_CONSTRAINT__DESCRIPTIONS:
				getDescriptions().clear();
				getDescriptions().addAll((Collection)newValue);
				return;
		}
		eDynamicSet(eFeature, newValue);
	}

	/**
	 * @generated This field/method will be replaced during code generation.
	 */
	public void eUnset(EStructuralFeature eFeature) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case WebapplicationPackage.AUTH_CONSTRAINT__DESCRIPTION:
				setDescription(DESCRIPTION_EDEFAULT);
				return;
			case WebapplicationPackage.AUTH_CONSTRAINT__ROLES:
				getRoles().clear();
				return;
			case WebapplicationPackage.AUTH_CONSTRAINT__SEC_CONSTRAINT:
				setSecConstraint((SecurityConstraint)null);
				return;
			case WebapplicationPackage.AUTH_CONSTRAINT__DESCRIPTIONS:
				getDescriptions().clear();
				return;
		}
		eDynamicUnset(eFeature);
	}

	/**
	 * @generated This field/method will be replaced during code generation.
	 */
	public String toString() {
		if (eIsProxy()) return super.toString();

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

}