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/*
 * Copyright (c) 2023 Robert Bosch Manufacturing Solutions GmbH
 *
 * See the AUTHORS file(s) distributed with this work for additional
 * information regarding authorship.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/.
 *
 * SPDX-License-Identifier: MPL-2.0
 */

package org.eclipse.esmf.metamodel.impl;

import java.util.Optional;
import java.util.Set;
import java.util.StringJoiner;

import org.eclipse.esmf.aspectmodel.loader.MetaModelBaseAttributes;
import org.eclipse.esmf.aspectmodel.visitor.AspectVisitor;
import org.eclipse.esmf.metamodel.QuantityKind;
import org.eclipse.esmf.metamodel.Unit;

import com.google.common.base.Objects;

public class DefaultUnit extends ModelElementImpl implements Unit {
   private final Optional symbol;
   private final Optional code;
   private final Optional referenceUnit;
   private final Optional conversionFactor;
   private final Set quantityKinds;

   public DefaultUnit(
         final MetaModelBaseAttributes metaModelBaseAttributes,
         final Optional symbol,
         final Optional code,
         final Optional referenceUnit,
         final Optional conversionFactor,
         final Set quantityKinds ) {
      super( metaModelBaseAttributes );
      this.symbol = symbol;
      this.code = code;
      this.referenceUnit = referenceUnit;
      this.conversionFactor = conversionFactor;
      this.quantityKinds = quantityKinds;
   }

   @Override
   public Optional getSymbol() {
      return symbol;
   }

   @Override
   public Optional getCode() {
      return code;
   }

   @Override
   public Optional getReferenceUnit() {
      return referenceUnit;
   }

   @Override
   public Optional getConversionFactor() {
      return conversionFactor;
   }

   @Override
   public Set getQuantityKinds() {
      return quantityKinds;
   }

   @Override
   public boolean equals( final Object o ) {
      if ( this == o ) {
         return true;
      }
      if ( o == null || getClass() != o.getClass() ) {
         return false;
      }
      final DefaultUnit that = (DefaultUnit) o;
      return Objects.equal( getName(), that.getName() )
            && Objects.equal( code, that.code );
   }

   @Override
   public int hashCode() {
      return Objects.hashCode( symbol, code, referenceUnit, conversionFactor, quantityKinds );
   }

   /**
    * Accepts an Aspect visitor
    *
    * @param visitor The visitor to accept
    * @param  The result type of the traversal operation
    * @param  The context of the visitor traversal
    */
   @Override
   public  T accept( final AspectVisitor visitor, final C context ) {
      return visitor.visitUnit( this, context );
   }

   @Override
   public String toString() {
      return new StringJoiner( ", ", DefaultUnit.class.getSimpleName() + "[", "]" )
            .add( "symbol=" + symbol )
            .add( "code=" + code )
            .add( "referenceUnit=" + referenceUnit )
            .add( "conversionFactor=" + conversionFactor )
            .add( "quantityKinds=" + quantityKinds )
            .toString();
   }
}