package org.sim0mq.message.types;
   
   import java.io.Serializable;
   
   import org.djunits.value.vdouble.scalar.Time;
   import org.djunits.value.vfloat.scalar.FloatTime;
   import org.sim0mq.Sim0MQException;
   
   /**
   * Wrapper for a Number or float/double with Unit of type Time. Store it internally as a Number <b>or</b> as a DoubleScalar,
   * <b>or</b> as a FloatScalar and have methods to retrieve it in different ways.
   * <p>
   * Copyright (c) 2016-2020 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
   * BSD-style license. See <a href="http://sim0mq.org/docs/current/license.html">Sim0MQ License</a>.
   * </p>
   * $LastChangedDate: 2015-07-24 02:58:59 +0200 (Fri, 24 Jul 2015) $, @version $Revision: 1147 $, by $Author: averbraeck $,
   * initial version Apr 24, 2017 <br>
   * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
   */
  public class NumberTime extends Number implements Serializable
  {
      /** */
      private static final long serialVersionUID = 20170424L;
  
      /** Number - any of the number types. */
      private final Number time;
  
      /** DoubleScalar of type Time. */
      private final Time doubleScalar;
  
      /** FloatScalar of type FloatTime. */
      private final FloatTime floatScalar;
  
      /**
       * Create a time from a Number.
       * @param time the time as a Number.
       */
      public NumberTime(final Number time)
      {
          this.time = time;
          this.doubleScalar = null;
          this.floatScalar = null;
      }
  
      /**
       * Create a time from a DoubleScalar Time type.
       * @param time the time as a DoubleScalar Time.
       */
      public NumberTime(final Time time)
      {
          this.time = null;
          this.doubleScalar = time;
          this.floatScalar = null;
      }
  
      /**
       * Create a time from a FloatScalar FloatTime type.
       * @param time the time as a FloatScalar FloatTime.
       */
      public NumberTime(final FloatTime time)
      {
          this.time = null;
          this.doubleScalar = null;
          this.floatScalar = time;
      }
  
      /**
       * Instantiate a NumberTime based on a value.
       * @param value the value that can be Time, FloatTime, or Number
       * @return an instantiation of NumberTime
       * @throws Sim0MQException if the value is neither Time, FloatTime, nor Number
       */
      public static NumberTime instantiate(final Object value) throws Sim0MQException
      {
          if (value instanceof Time)
          {
              return new NumberTime((Time) value);
          }
          else if (value instanceof FloatTime)
          {
              return new NumberTime((FloatTime) value);
          }
          else if (value instanceof Number)
          {
              return new NumberTime((Number) value);
          }
          else
          {
              throw new Sim0MQException("value should be Number, Time or FloatTime");
          }
      }
    
      /** {@inheritDoc} */
      @Override
      public int intValue()
      {
          return this.time.intValue();
      }
  
     /** {@inheritDoc} */
     @Override
     public long longValue()
     {
         return this.time.longValue();
     }
 
     /** {@inheritDoc} */
     @Override
     public float floatValue()
     {
         return this.time.floatValue();
     }
 
     /** {@inheritDoc} */
     @Override
     public double doubleValue()
     {
         return this.time.doubleValue();
     }
 
     /**
      * Return the NumberTime as an object, e.g., for serializing.
      * @return NumberTime as an object
      */
     public Object getObject()
     {
         if (this.time != null)
         {
             return this.time;
         }
         else if (this.doubleScalar != null)
         {
             return this.doubleScalar;
         }
         else if (this.floatScalar != null)
         {
             return this.floatScalar;
         }
         else
         {
             // should never happen
             throw new RuntimeException("NumberTime is neither Number, nor Time, nor FloatTime");
         }
     }
 
     /**
      * @return the time as a Number
      */
     public Number getNumber()
     {
         if (this.time != null)
         {
             return this.time;
         }
         else if (this.doubleScalar != null)
         {
             return this.doubleScalar;
         }
         else if (this.floatScalar != null)
         {
             return this.floatScalar;
         }
         else
         {
             // should never happen
             throw new RuntimeException("NumberTime is neither Number, nor Time, nor FloatTime");
         }
     }
 
     /**
      * @return the time as a djunits Time type
      */
     public Time getTime()
     {
         if (this.time != null)
         {
             return Time.instantiateSI(this.time.doubleValue());
         }
         else if (this.doubleScalar != null)
         {
             return this.doubleScalar;
         }
         else if (this.floatScalar != null)
         {
             return new Time(this.floatScalar.getInUnit(), this.floatScalar.getDisplayUnit());
         }
         else
         {
             // should never happen
             throw new RuntimeException("NumberTime is neither Number, nor Time, nor FloatTime");
         }
     }
 
     /**
      * @return the time as a djunits FloatTime type
      */
     public FloatTime getFloatTime()
     {
         if (this.time != null)
         {
             return FloatTime.instantiateSI(this.time.floatValue());
         }
         else if (this.doubleScalar != null)
         {
             return new FloatTime((float) this.doubleScalar.getInUnit(), this.doubleScalar.getDisplayUnit());
         }
         else if (this.floatScalar != null)
         {
             return this.floatScalar;
         }
         else
         {
             // should never happen
             throw new RuntimeException("NumberTime is neither Number, nor Time, nor FloatTime");
         }
     }
 }