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.files.ccsds.definitions;
18  
19  import org.orekit.annotation.DefaultDataContext;
20  import org.orekit.bodies.CelestialBody;
21  import org.orekit.data.DataContext;
22  
23  /** Facade in front of several center bodies in CCSDS messages.
24   * @author Luc Maisonobe
25   * @since 11.0
26   */
27  public class BodyFacade {
28  
29      /** Name of the center. */
30      private final String name;
31  
32      /** Celestial body (may be null). */
33      private final CelestialBody body;
34  
35      /** Simple constructor.
36       * @param name name of the frame
37       * @param body celestial body (may be null)
38       */
39      public BodyFacade(final String name, final CelestialBody body) {
40          this.name = name;
41          this.body = body;
42      }
43  
44      /** Get the CCSDS name for the body.
45       * @return CCSDS name
46       */
47      public String getName() {
48          return name;
49      }
50  
51      /** Get the celestial body.
52       * @return celestial body (may be null)
53       */
54      public CelestialBody getBody() {
55          return body;
56      }
57  
58      /**
59       * Create a body facade from an input center name.
60       *
61       * <p>This method uses the {@link DataContext#getDefault() default data context}.
62       *
63       * @param centerName input center name
64       * @return a body facade corresponding to the input center name
65       * @since 11.2
66       */
67      @DefaultDataContext
68      public static BodyFacade create(final CenterName centerName) {
69          return new BodyFacade(centerName.name(), centerName.getCelestialBody());
70      }
71  
72  }