1   /* Copyright 2002-2021 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  
18  package org.orekit.files.ccsds.ndm.adm.apm;
19  
20  import java.io.IOException;
21  
22  import org.orekit.files.ccsds.definitions.Units;
23  import org.orekit.files.ccsds.ndm.adm.AttitudeEndoints;
24  import org.orekit.files.ccsds.section.AbstractWriter;
25  import org.orekit.files.ccsds.utils.generation.Generator;
26  import org.orekit.utils.units.Unit;
27  
28  /** Writer for spin stabilized data.
29   * @author Luc Maisonobe
30   * @since 11.0
31   */
32  class SpinStabilizedWriter extends AbstractWriter {
33  
34      /** Spin stabilized block. */
35      private final SpinStabilized spinStabilized;
36  
37      /** Create a writer.
38       * @param xmlTag name of the XML tag surrounding the section
39       * @param kvnTag name of the KVN tag surrounding the section (may be null)
40       * @param spinStabilized spin stabilized data to write
41       */
42      SpinStabilizedWriter(final String xmlTag, final String kvnTag,
43                          final SpinStabilized spinStabilized) {
44          super(xmlTag, kvnTag);
45          this.spinStabilized = spinStabilized;
46      }
47  
48      /** {@inheritDoc} */
49      @Override
50      protected void writeContent(final Generator generator) throws IOException {
51  
52          generator.writeComments(spinStabilized.getComments());
53  
54          // endpoints
55          generator.writeEntry(SpinStabilizedKey.SPIN_FRAME_A.name(), spinStabilized.getEndpoints().getFrameA().getName(), null, true);
56          generator.writeEntry(SpinStabilizedKey.SPIN_FRAME_B.name(), spinStabilized.getEndpoints().getFrameB().getName(), null, true);
57          generator.writeEntry(SpinStabilizedKey.SPIN_DIR.name(),
58                               spinStabilized.getEndpoints().isA2b() ? AttitudeEndoints.A2B : AttitudeEndoints.B2A,
59                               null, true);
60  
61          // spin
62          generator.writeEntry(SpinStabilizedKey.SPIN_ALPHA.name(),     spinStabilized.getSpinAlpha(), Unit.DEGREE,        true);
63          generator.writeEntry(SpinStabilizedKey.SPIN_DELTA.name(),     spinStabilized.getSpinDelta(), Unit.DEGREE,        true);
64          generator.writeEntry(SpinStabilizedKey.SPIN_ANGLE.name(),     spinStabilized.getSpinAngle(), Unit.DEGREE,        true);
65          generator.writeEntry(SpinStabilizedKey.SPIN_ANGLE_VEL.name(), spinStabilized.getSpinAngleVel(), Units.DEG_PER_S, true);
66  
67          // nutation
68          generator.writeEntry(SpinStabilizedKey.NUTATION.name(),       spinStabilized.getNutation(), Unit.DEGREE,       false);
69          generator.writeEntry(SpinStabilizedKey.NUTATION_PER.name(),   spinStabilized.getNutationPeriod(), Unit.SECOND, false);
70          generator.writeEntry(SpinStabilizedKey.NUTATION_PHASE.name(), spinStabilized.getNutationPhase(), Unit.DEGREE,  false);
71  
72      }
73  
74  }