/*******************************************************************************
 * Copyright (c) 2010, 2020 Willink Transformations and others.
 * All rights reserved.   This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v2.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v20.html
 *
 * Contributors:
 *   E.D.Willink - Initial API and implementation
 *******************************************************************************/
package org.eclipse.ocl.pivot.internal;

import java.lang.reflect.InvocationTargetException;
import java.util.Collection;
import java.util.Map;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.util.DiagnosticChain;
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.jdt.annotation.NonNull;
import org.eclipse.jdt.annotation.Nullable;
import org.eclipse.ocl.pivot.Comment;
import org.eclipse.ocl.pivot.Element;
import org.eclipse.ocl.pivot.ElementExtension;
import org.eclipse.ocl.pivot.PivotPackage;
import org.eclipse.ocl.pivot.PivotTables;
import org.eclipse.ocl.pivot.ReferringElement;
import org.eclipse.ocl.pivot.Type;
import org.eclipse.ocl.pivot.ValueSpecification;
import org.eclipse.ocl.pivot.VariableDeclaration;
import org.eclipse.ocl.pivot.VariableExp;
import org.eclipse.ocl.pivot.evaluation.Executor;
import org.eclipse.ocl.pivot.ids.IdResolver;
import org.eclipse.ocl.pivot.ids.TypeId;
import org.eclipse.ocl.pivot.library.oclany.OclComparableLessThanEqualOperation;
import org.eclipse.ocl.pivot.library.string.CGStringGetSeverityOperation;
import org.eclipse.ocl.pivot.library.string.CGStringLogDiagnosticOperation;
import org.eclipse.ocl.pivot.util.Visitor;
import org.eclipse.ocl.pivot.utilities.PivotUtil;
import org.eclipse.ocl.pivot.utilities.ValueUtil;
import org.eclipse.ocl.pivot.values.IntegerValue;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Variable Exp</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * </p>
 * <ul>
 *   <li>{@link org.eclipse.ocl.pivot.internal.VariableExpImpl#isIsImplicit <em>Is Implicit</em>}</li>
 *   <li>{@link org.eclipse.ocl.pivot.internal.VariableExpImpl#getReferredVariable <em>Referred Variable</em>}</li>
 * </ul>
 *
 * @generated
 */
public class VariableExpImpl
extends OCLExpressionImpl
implements VariableExp {

	/**
	 * The number of structural features of the '<em>Variable Exp</em>' class.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	public static final int VARIABLE_EXP_FEATURE_COUNT = OCLExpressionImpl.OCL_EXPRESSION_FEATURE_COUNT + 2;
	/**
	 * The number of operations of the '<em>Variable Exp</em>' class.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	public static final int VARIABLE_EXP_OPERATION_COUNT = OCLExpressionImpl.OCL_EXPRESSION_OPERATION_COUNT + 2;
	/**
	 * The default value of the '{@link #isIsImplicit() <em>Is Implicit</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #isIsImplicit()
	 * @generated
	 * @ordered
	 */
	protected static final boolean IS_IMPLICIT_EDEFAULT = false;
	/**
	 * The flag representing the value of the '{@link #isIsImplicit() <em>Is Implicit</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #isIsImplicit()
	 * @generated
	 * @ordered
	 */
	protected static final int IS_IMPLICIT_EFLAG = 1 << 9;
	/**
	 * The cached value of the '{@link #getReferredVariable() <em>Referred Variable</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getReferredVariable()
	 * @generated
	 * @ordered
	 */
	protected VariableDeclaration referredVariable;

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean isIsImplicit()
	{
		return (eFlags & IS_IMPLICIT_EFLAG) != 0;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public VariableDeclaration getReferredVariable() {
		if (referredVariable != null && referredVariable.eIsProxy())
		{
			InternalEObject oldReferredVariable = (InternalEObject)referredVariable;
			referredVariable = (VariableDeclaration)eResolveProxy(oldReferredVariable);
			if (referredVariable != oldReferredVariable)
			{
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE, 10, oldReferredVariable, referredVariable));
			}
		}
		return referredVariable;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public VariableDeclaration basicGetReferredVariable() {
		return referredVariable;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void setReferredVariable(VariableDeclaration newReferredVariable) {
		VariableDeclaration oldReferredVariable = referredVariable;
		referredVariable = newReferredVariable;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, 10, oldReferredVariable, referredVariable));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean validateTypeIsNotInvalid(final DiagnosticChain diagnostics, final Map<Object, Object> context)
	{
		final @NonNull String constraintName = "VariableExp::TypeIsNotInvalid";
		try {
			/**
			 *
			 * inv TypeIsNotInvalid:
			 *   let severity : Integer[1] = constraintName.getSeverity()
			 *   in
			 *     if severity <= 0
			 *     then true
			 *     else
			 *       let result : Boolean[1] = type <> OclInvalid
			 *       in
			 *         constraintName.logDiagnostic(self, null, diagnostics, context, null, severity, result, 0)
			 *     endif
			 */
			final /*@NonInvalid*/ @NonNull Executor executor = PivotUtil.getExecutor(this);
			final /*@NonInvalid*/ @NonNull IdResolver idResolver = executor.getIdResolver();
			final /*@NonInvalid*/ @NonNull IntegerValue severity_0 = CGStringGetSeverityOperation.INSTANCE.evaluate(executor, PivotPackage.Literals.VARIABLE_EXP___VALIDATE_TYPE_IS_NOT_INVALID__DIAGNOSTICCHAIN_MAP);
			final /*@NonInvalid*/ boolean le = OclComparableLessThanEqualOperation.INSTANCE.evaluate(executor, severity_0, PivotTables.INT_0).booleanValue();
			/*@NonInvalid*/ boolean symbol_0;
			if (le) {
				symbol_0 = true;
			}
			else {
				final /*@NonInvalid*/ org.eclipse.ocl.pivot.@NonNull Class TYP_OclInvalid_0 = idResolver.getClass(TypeId.OCL_INVALID, null);
				final /*@NonInvalid*/ @Nullable Type type = this.getType();
				final /*@NonInvalid*/ boolean result = (type != null) ? (type.getTypeId() != TYP_OclInvalid_0.getTypeId()) : true;
				final /*@NonInvalid*/ boolean logDiagnostic = CGStringLogDiagnosticOperation.INSTANCE.evaluate(executor, TypeId.BOOLEAN, constraintName, this, (Object)null, diagnostics, context, (Object)null, severity_0, result, PivotTables.INT_0).booleanValue();
				symbol_0 = logDiagnostic;
			}
			return symbol_0;
		}
		catch (Throwable e) {
			return ValueUtil.validationFailedDiagnostic(constraintName, this, diagnostics, context, e);
		}
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void setIsImplicit(boolean newIsImplicit)
	{
		boolean oldIsImplicit = (eFlags & IS_IMPLICIT_EFLAG) != 0;
		if (newIsImplicit) eFlags |= IS_IMPLICIT_EFLAG; else eFlags &= ~IS_IMPLICIT_EFLAG;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, 9, oldIsImplicit, newIsImplicit));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID)
		{
			case 0:
				return getAnnotatingComments();
			case 1:
				return getOwnedAnnotations();
			case 2:
				return getOwnedComments();
			case 3:
				return getOwnedExtensions();
			case 4:
				return getName();
			case 5:
				return isIsMany();
			case 6:
				return isIsRequired();
			case 7:
				if (resolve) return getType();
				return basicGetType();
			case 8:
				return getTypeValue();
			case 9:
				return isIsImplicit();
			case 10:
				if (resolve) return getReferredVariable();
				return basicGetReferredVariable();
		}
		return eDynamicGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@SuppressWarnings("unchecked")
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID)
		{
			case 0:
				getAnnotatingComments().clear();
				getAnnotatingComments().addAll((Collection<? extends Comment>)newValue);
				return;
			case 1:
				getOwnedAnnotations().clear();
				getOwnedAnnotations().addAll((Collection<? extends Element>)newValue);
				return;
			case 2:
				getOwnedComments().clear();
				getOwnedComments().addAll((Collection<? extends Comment>)newValue);
				return;
			case 3:
				getOwnedExtensions().clear();
				getOwnedExtensions().addAll((Collection<? extends ElementExtension>)newValue);
				return;
			case 4:
				setName((String)newValue);
				return;
			case 6:
				setIsRequired((Boolean)newValue);
				return;
			case 7:
				setType((Type)newValue);
				return;
			case 8:
				setTypeValue((Type)newValue);
				return;
			case 9:
				setIsImplicit((Boolean)newValue);
				return;
			case 10:
				setReferredVariable((VariableDeclaration)newValue);
				return;
		}
		eDynamicSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID)
		{
			case 0:
				getAnnotatingComments().clear();
				return;
			case 1:
				getOwnedAnnotations().clear();
				return;
			case 2:
				getOwnedComments().clear();
				return;
			case 3:
				getOwnedExtensions().clear();
				return;
			case 4:
				setName(NAME_EDEFAULT);
				return;
			case 6:
				setIsRequired(IS_REQUIRED_EDEFAULT);
				return;
			case 7:
				setType((Type)null);
				return;
			case 8:
				setTypeValue((Type)null);
				return;
			case 9:
				setIsImplicit(IS_IMPLICIT_EDEFAULT);
				return;
			case 10:
				setReferredVariable((VariableDeclaration)null);
				return;
		}
		eDynamicUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID)
		{
			case 0:
				return annotatingComments != null && !annotatingComments.isEmpty();
			case 1:
				return ownedAnnotations != null && !ownedAnnotations.isEmpty();
			case 2:
				return ownedComments != null && !ownedComments.isEmpty();
			case 3:
				return ownedExtensions != null && !ownedExtensions.isEmpty();
			case 4:
				return NAME_EDEFAULT == null ? name != null : !NAME_EDEFAULT.equals(name);
			case 5:
				return isIsMany() != IS_MANY_EDEFAULT;
			case 6:
				return ((eFlags & IS_REQUIRED_EFLAG) != 0) != IS_REQUIRED_EDEFAULT;
			case 7:
				return type != null;
			case 8:
				return typeValue != null;
			case 9:
				return ((eFlags & IS_IMPLICIT_EFLAG) != 0) != IS_IMPLICIT_EDEFAULT;
			case 10:
				return referredVariable != null;
		}
		return eDynamicIsSet(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public int eDerivedOperationID(int baseOperationID, Class<?> baseClass)
	{
		if (baseClass == ReferringElement.class)
		{
			switch (baseOperationID)
			{
				case 0: return 6;
				default: return -1;
			}
		}
		return super.eDerivedOperationID(baseOperationID, baseClass);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	@SuppressWarnings("unchecked")
	public Object eInvoke(int operationID, EList<?> arguments) throws InvocationTargetException
	{
		switch (operationID)
		{
			case 0:
				return allOwnedElements();
			case 1:
				return getValue((Type)arguments.get(0), (String)arguments.get(1));
			case 2:
				return CompatibleBody((ValueSpecification)arguments.get(0));
			case 3:
				return isNonNull();
			case 4:
				return isNull();
			case 5:
				return validateTypeIsNotNull((DiagnosticChain)arguments.get(0), (Map<Object, Object>)arguments.get(1));
			case 6:
				return getReferredElement();
			case 7:
				return validateTypeIsNotInvalid((DiagnosticChain)arguments.get(0), (Map<Object, Object>)arguments.get(1));
		}
		return eDynamicInvoke(operationID, arguments);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated NOT
	 */
	@Override
	public String toString()
	{
		return super.toString();
	}

	@Override
	public <R> R accept(@NonNull Visitor<R> visitor) {
		return visitor.visitVariableExp(this);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated NOT
	 */
	@Override
	public Element getReferredElement()
	{
		return getReferredVariable();
	}
} //VariableExpImpl