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1   package org.opentrafficsim.road.gtu.lane.tactical.following;
2   
3   import java.io.Serializable;
4   
5   import org.djunits.value.vdouble.scalar.Acceleration;
6   import org.djunits.value.vdouble.scalar.Duration;
7   import org.djunits.value.vdouble.scalar.Time;
8   
9   /**
10   * Storage for the result of a GTU following model. <br>
11   * Currently the result is restricted to a constant acceleration during the period of validity (the time slot) of the result.
12   * <p>
13   * Copyright (c) 2013-2016 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
14   * BSD-style license. See <a href="http://opentrafficsim.org/docs/license.html">OpenTrafficSim License</a>.
15   * <p>
16   * @version $Revision: 1378 $, $LastChangedDate: 2015-09-03 13:38:01 +0200 (Thu, 03 Sep 2015) $, by $Author: averbraeck $,
17   *          initial version 6 feb. 2015 <br>
18   * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
19   * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
20   */
21  public class AccelerationStep implements Serializable
22  {
23      /** */
24      private static final long serialVersionUID = 20150000L;
25  
26      /** Acceleration that will be maintained during the current time slot. */
27      private final Acceleration acceleration;
28  
29      /** Time when the current time slot ends. */
30      private final Time validUntil;
31      
32      /** Duration of the time step. */
33      final Duration duration;
34  
35      /**
36       * Create a new GTUFollowingModelResult.
37       * @param acceleration DoubleScalarAbs&lt;AccelerationUnit&gt;; computed acceleration
38       * @param validUntil Time; time when this result expires
39       * @param duration Duration; duration of the time step
40       */
41      public AccelerationStep(final Acceleration acceleration, final Time validUntil, final Duration duration)
42      {
43          this.acceleration = acceleration;
44          this.validUntil = validUntil;
45          this.duration = duration;
46      }
47  
48      /**
49       * @return acceleration.
50       */
51      public final Acceleration getAcceleration()
52      {
53          return this.acceleration;
54      }
55  
56      /**
57       * @return validUntil.
58       */
59      public final Time getValidUntil()
60      {
61          return this.validUntil;
62      }
63  
64      /**
65       * @return duration.
66       */
67      public final Duration getDuration()
68      {
69          return this.duration;
70      }
71  
72      /**
73       * {@inheritDoc}
74       */
75      public final String toString()
76      {
77          return String.format("a=%s, valid until %s", this.acceleration, this.validUntil);
78      }
79  
80  }