1   /* Copyright 2022-2026 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  package org.orekit.frames;
18  
19  import org.orekit.time.DateComponents;
20  
21  import java.util.Comparator;
22  
23  /** Container for EOP entry.
24   * @param publicationDate publication date
25   * @param fileName        name of the file origin
26   * @since 14.0
27   * @author Luc Maisonobe
28   */
29  public record EOPOrigin(DateComponents publicationDate, String fileName) implements Comparable<EOPOrigin> {
30  
31      /** Internal comparator. */
32      private static final Comparator<EOPOrigin> COMPARATOR =
33          Comparator.comparing(EOPOrigin::publicationDate).thenComparing(EOPOrigin::fileName);
34  
35      /** {@inheritDoc} */
36      @Override
37      public int compareTo(final EOPOrigin eopOrigin) {
38          return COMPARATOR.compare(this, eopOrigin);
39      }
40  
41  }