1   /* Copyright 2002-2024 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.files.ccsds.ndm.adm.aem;
18  
19  import java.util.ArrayList;
20  import java.util.Collections;
21  import java.util.List;
22  
23  import org.orekit.files.ccsds.section.CommentsContainer;
24  import org.orekit.files.ccsds.section.Data;
25  import org.orekit.utils.TimeStampedAngularCoordinates;
26  
27  /**
28   * The Attitude Ephemerides data blocks class contain list of attitude data points.
29   * @author Bryan Cazabonne
30   */
31  public class AemData extends CommentsContainer implements Data {
32  
33      /** List of data lines. */
34      private final List<TimeStampedAngularCoordinates> attitudeDataLines;
35  
36      /**
37       * Constructor.
38       */
39      public AemData() {
40          attitudeDataLines = new ArrayList<>();
41      }
42  
43      /** Add a data point.
44       * @param data data point to add
45       * @return always return {@code true}
46       */
47      public boolean addData(final TimeStampedAngularCoordinates data) {
48          refuseFurtherComments();
49          attitudeDataLines.add(data);
50          return true;
51      }
52  
53      /** Get an unmodifiable view of the data points.
54       * @return unmodifiable view of the data points
55       */
56      public List<TimeStampedAngularCoordinates> getAngularCoordinates() {
57          return Collections.unmodifiableList(attitudeDataLines);
58      }
59  
60  }