1   /* Copyright 2002-2025 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.sinex;
19  
20  import org.orekit.gnss.SatelliteSystem;
21  
22  import java.util.Collection;
23  import java.util.HashMap;
24  
25  /**
26   * Class based on OSB, used to store the data parsed in {@link SinexBiasParser}
27   * for Observation Signal Biases computed for stations.
28   * <p>
29   * Satellites and stations have differentiated classes as stations might have multiple satellite systems.
30   * The data are stored in a Map of OSB, identified by the {@link SatelliteSystem}
31   * </p>
32   * @author Louis Aucouturier
33   * @author Luc Maisonobe
34   * @since 13.0
35   */
36  public class StationObservableSpecificSignalBias {
37  
38      /** Site code. */
39      private final String siteCode;
40  
41      /** Map containing OSB objects as a function of the satellite system. */
42      private final HashMap<SatelliteSystem, ObservableSpecificSignalBias> osbMap;
43  
44      /** Simple constructor.
45       * @param siteCode the site code (station identifier)
46       */
47      public StationObservableSpecificSignalBias(final String siteCode) {
48          this.siteCode = siteCode;
49          this.osbMap   = new HashMap<>();
50      }
51  
52      /** Get the site code (station identifier).
53       * @return the site code
54       */
55      public String getSiteCode() {
56          return siteCode;
57      }
58  
59      /** Get the OSB data for a given satellite system.
60       * @param satelliteSystem satellite system
61       * @return the OSB data corresponding to the satellite system
62       */
63      public ObservableSpecificSignalBias getOsb(final SatelliteSystem satelliteSystem) {
64          return osbMap.computeIfAbsent(satelliteSystem, s -> new ObservableSpecificSignalBias());
65      }
66  
67      /** Get the satellite systems available for the station.
68       * @return a Set containing all SatelliteSystems available for DSB computation.
69       */
70      public Collection<SatelliteSystem> getAvailableSatelliteSystems() {
71          return osbMap.keySet();
72      }
73  
74  }