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/*
 * Copyright (c) 1998-2018 University Corporation for Atmospheric Research/Unidata
 * See LICENSE for license information.
 */
package ucar.units;

import java.io.Serializable;

/**
 * Provides support for unit conversion exceptions.
 * 
 * @author Steven R. Emmerson
 */
public final class ConversionException extends UnitException implements Serializable {
  private static final long serialVersionUID = 1L;

  /**
   * Constructs from nothing.
   */
  public ConversionException() {}

  /**
   * Constructs from a message.
   * 
   * @param message
   *        The error message.
   */
  private ConversionException(final String message) {
    super(message);
  }

  /**
   * Constructs from a "from" unit and and "to" unit.
   * 
   * @param fromUnit
   *        The unit from which a conversion was attempted.
   * @param toUnit
   *        The unit to which a conversion was attempted.
   */
  public ConversionException(final Unit fromUnit, final Unit toUnit) {
    this("Can't convert from unit \"" + fromUnit + "\" to unit \"" + toUnit + "\"");
  }
}