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/*******************************************************************************
 * Copyright (c) 2015, 2016 Willink Transformations 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:
 *   E.D.Willink - Initial API and implementation
 *******************************************************************************/
package org.eclipse.qvtd.runtime.library.model;

import java.util.Collection;

import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.jdt.annotation.Nullable;
import org.eclipse.ocl.pivot.evaluation.Executor;
import org.eclipse.ocl.pivot.ids.CollectionTypeId;
import org.eclipse.ocl.pivot.ids.TypeId;
import org.eclipse.ocl.pivot.library.AbstractBinaryOperation;
import org.eclipse.ocl.pivot.messages.PivotMessages;
import org.eclipse.ocl.pivot.values.CollectionValue;
import org.eclipse.ocl.pivot.values.InvalidValueException;
import org.eclipse.qvtd.runtime.evaluation.TypedModelInstance;

/**
 * ModelObjectsOfKindOperation realises the Model::objectsOfKind() library operation.
 * @deprecated This is not needed by synthesized QVTr
 */
@Deprecated
public class ModelObjectsOfKindOperation extends AbstractBinaryOperation
{
	public static final @NonNull ModelObjectsOfKindOperation INSTANCE = new ModelObjectsOfKindOperation();

	@Override
	public @NonNull CollectionValue evaluate(@NonNull Executor executor, @NonNull TypeId returnTypeId, @Nullable Object sourceVal, @Nullable Object typeVal) {
		org.eclipse.ocl.pivot.Class type = asClass(typeVal);
		if (!(sourceVal instanceof TypedModelInstance)) {
			throw new InvalidValueException(PivotMessages.TypedValueRequired, "TypedModelInstance", getTypeName(sourceVal));
		}
		TypedModelInstance typedModelInstance = (TypedModelInstance)sourceVal;
		Iterable<@NonNull ? extends Object> results = typedModelInstance.getObjectsOfKind(type);
		return createCollectionOfAll((CollectionTypeId)returnTypeId, true, (Collection<@Nullable ? extends Object>) results);
	}
}