1   /* Copyright 2022-2025 Luc Maisonobe
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  
18  package org.orekit.files.ccsds.ndm.adm.acm;
19  
20  import java.io.IOException;
21  
22  import org.orekit.files.ccsds.definitions.Units;
23  import org.orekit.files.ccsds.section.AbstractWriter;
24  import org.orekit.files.ccsds.utils.generation.Generator;
25  import org.orekit.utils.units.Unit;
26  
27  /** Writer for attitude maneuver data.
28   * @author Luc Maisonobe
29   * @since 12.0
30   */
31  class AttitudeManeuverWriter extends AbstractWriter {
32  
33      /** Attitude maneuver block. */
34      private final AttitudeManeuver man;
35  
36      /** Create a writer.
37       * @param attitudeManeuver attitude maneuver to write
38       */
39      AttitudeManeuverWriter(final AttitudeManeuver attitudeManeuver) {
40          super(AcmDataSubStructureKey.man.name(), AcmDataSubStructureKey.MAN.name());
41          this.man = attitudeManeuver;
42      }
43  
44      /** {@inheritDoc} */
45      @Override
46      protected void writeContent(final Generator generator) throws IOException {
47  
48          // attitude maneuver block
49          generator.writeComments(man.getComments());
50  
51          // identifiers
52          generator.writeEntry(AttitudeManeuverKey.MAN_ID.name(),      man.getID(),         null, false);
53          generator.writeEntry(AttitudeManeuverKey.MAN_PREV_ID.name(), man.getPrevID(),     null, false);
54          generator.writeEntry(AttitudeManeuverKey.MAN_PURPOSE.name(), man.getManPurpose(), null, true);
55  
56          // time
57          generator.writeEntry(AttitudeManeuverKey.MAN_BEGIN_TIME.name(),             man.getBeginTime(), Unit.SECOND,      false);
58          generator.writeEntry(AttitudeManeuverKey.MAN_END_TIME.name(),               man.getEndTime(),   Unit.SECOND,      false);
59          generator.writeEntry(AttitudeManeuverKey.MAN_DURATION.name(),               man.getDuration(),  Unit.SECOND,      false);
60  
61          // actuator
62          generator.writeEntry(AttitudeManeuverKey.ACTUATOR_USED.name(), man.getActuatorUsed(), null, false);
63  
64          // target
65          if (man.getTargetMomentum() != null) {
66              final StringBuilder momentum = new StringBuilder();
67              momentum.append(generator.doubleToString(Units.N_M_S.fromSI(man.getTargetMomentum().getX())));
68              momentum.append(' ');
69              momentum.append(generator.doubleToString(Units.N_M_S.fromSI(man.getTargetMomentum().getY())));
70              momentum.append(' ');
71              momentum.append(generator.doubleToString(Units.N_M_S.fromSI(man.getTargetMomentum().getZ())));
72              generator.writeEntry(AttitudeManeuverKey.TARGET_MOMENTUM.name(), momentum.toString(),                Units.N_M_S, true);
73              if (man.getTargetMomFrame() != null) {
74                  generator.writeEntry(AttitudeManeuverKey.TARGET_MOM_FRAME.name(), man.getTargetMomFrame().getName(), null,    false);
75              }
76          }
77  
78          if (man.getTargetAttitude() != null) {
79              final StringBuilder attitude = new StringBuilder();
80              attitude.append(generator.doubleToString(man.getTargetAttitude().getQ1()));
81              attitude.append(' ');
82              attitude.append(generator.doubleToString(man.getTargetAttitude().getQ2()));
83              attitude.append(' ');
84              attitude.append(generator.doubleToString(man.getTargetAttitude().getQ3()));
85              attitude.append(' ');
86              attitude.append(generator.doubleToString(man.getTargetAttitude().getQ0()));
87              generator.writeEntry(AttitudeManeuverKey.TARGET_ATTITUDE.name(), attitude.toString(), null, true);
88          }
89  
90          generator.writeEntry(AttitudeManeuverKey.TARGET_SPINRATE.name(), man.getTargetSpinRate(), Units.DEG_PER_S, false);
91  
92      }
93  
94  }