1   /* Copyright 2002-2022 CS GROUP
2    * Licensed to CS GROUP (CS) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * CS licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *   http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.orekit.forces.maneuvers.triggers;
18  
19  
20  import java.util.List;
21  
22  import org.hipparchus.CalculusFieldElement;
23  import org.hipparchus.Field;
24  import org.hipparchus.util.Decimal64Field;
25  import org.junit.Assert;
26  import org.junit.Test;
27  import org.orekit.forces.maneuvers.trigger.StartStopEventsTrigger;
28  import org.orekit.propagation.events.DateDetector;
29  import org.orekit.propagation.events.FieldAbstractDetector;
30  import org.orekit.propagation.events.FieldDateDetector;
31  import org.orekit.propagation.events.FieldEventDetector;
32  import org.orekit.propagation.events.handlers.StopOnEvent;
33  import org.orekit.time.AbsoluteDate;
34  import org.orekit.time.FieldAbsoluteDate;
35  import org.orekit.time.TimeStamped;
36  
37  public class StartStopEventTriggerTest extends AbstractManeuverTriggersTest<StartStopEventsTrigger<DateDetector, DateDetector>> {
38  
39      public static class StartStopDates extends StartStopEventsTrigger<DateDetector, DateDetector> {
40  
41          public StartStopDates(final AbsoluteDate start, final AbsoluteDate stop) {
42              super(new DateDetector(5.0, 1.0e-10, start, stop.shiftedBy(10.0)).
43                    withHandler(new StopOnEvent<>()),
44                    new DateDetector(5.0, 1.0e-10, stop, stop.shiftedBy(20.0)).
45                    withHandler(new StopOnEvent<>()));
46          }
47  
48          @Override
49          protected <D extends FieldEventDetector<S>, S extends CalculusFieldElement<S>>
50              FieldAbstractDetector<D, S> convertStartDetector(Field<S> field, DateDetector detector) {
51              final FieldAbsoluteDate<S> target = new FieldAbsoluteDate<>(field, detector.getDates().get(0).getDate());
52              @SuppressWarnings("unchecked")
53              final FieldAbstractDetector<D, S> converted = (FieldAbstractDetector<D, S>) new FieldDateDetector<>(target);
54              return converted;
55          }
56  
57          @Override
58          protected <D extends FieldEventDetector<S>, S extends CalculusFieldElement<S>>
59              FieldAbstractDetector<D, S> convertStopDetector(Field<S> field, DateDetector detector) {
60              final FieldAbsoluteDate<S> target = new FieldAbsoluteDate<>(field, detector.getDates().get(0).getDate());
61              @SuppressWarnings("unchecked")
62              final FieldAbstractDetector<D, S> converted = (FieldAbstractDetector<D, S>) new FieldDateDetector<>(target);
63              return converted;
64          }
65  
66      }
67  
68      protected StartStopEventsTrigger<DateDetector, DateDetector> createTrigger(final AbsoluteDate start, final AbsoluteDate stop) {
69          return new StartStopDates(start, stop);
70      }
71  
72      @Test
73      public void testComponents() {
74          StartStopEventsTrigger<DateDetector, DateDetector> trigger = createTrigger(AbsoluteDate.J2000_EPOCH,
75                                                                                     AbsoluteDate.J2000_EPOCH.shiftedBy(100.0));
76          final List<TimeStamped>    startDates = trigger.getStartDetector().getDates();
77          final List<TimeStamped>    stopDates  = trigger.getStopDetector().getDates();
78          Assert.assertEquals(2,     trigger.getEventsDetectors().count());
79          Assert.assertEquals(2,     trigger.getFieldEventsDetectors(Decimal64Field.getInstance()).count());
80          Assert.assertEquals(2,     startDates.size());
81          Assert.assertEquals(  0.0, startDates.get(0).getDate().durationFrom(AbsoluteDate.J2000_EPOCH), 1.0e-10);
82          Assert.assertEquals(110.0, startDates.get(1).getDate().durationFrom(AbsoluteDate.J2000_EPOCH), 1.0e-10);
83          Assert.assertEquals(2,     stopDates.size());
84          Assert.assertEquals(100.0, stopDates.get(0).getDate().durationFrom(AbsoluteDate.J2000_EPOCH), 1.0e-10);
85          Assert.assertEquals(120.0, stopDates.get(1).getDate().durationFrom(AbsoluteDate.J2000_EPOCH), 1.0e-10);
86      }
87  
88  }