1   /* Copyright 2022-2025 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.files.sinex;
18  
19  import org.orekit.time.AbsoluteDate;
20  
21  import java.util.function.BiConsumer;
22  import java.util.function.Predicate;
23  
24  /** Predicate for EOP entries in SINEX files.
25   * @author Luc Maisonobe
26   * @since 13.0
27   */
28  enum EopPredicate implements Predicate<SinexParseInfo> {
29  
30      /** Parser for XPO line. */
31      XPO(SinexEopEntry::setxPo),
32  
33      /** Parser for YPO line. */
34      YPO(SinexEopEntry::setyPo),
35  
36      /** Parser for LOD line. */
37      LOD(SinexEopEntry::setLod),
38  
39      /** Parser for UT line. */
40      UT(SinexEopEntry::setUt1MinusUtc),
41  
42      /** Parser for NUT_LN line. */
43      NUT_LN(SinexEopEntry::setNutLn),
44  
45      /** Parser for NUT_OB line. */
46      NUT_OB(SinexEopEntry::setNutOb),
47  
48      /** Parser for NUT_X line. */
49      NUT_X(SinexEopEntry::setNutX),
50  
51      /** Parser for NUT_Y line. */
52      NUT_Y(SinexEopEntry::setNutY);
53  
54      /** Consumer for value. */
55      private final BiConsumer<SinexEopEntry, Double> consumer;
56  
57      /** Simple constructor.
58       * @param consumer consumer for value
59       */
60      EopPredicate(final BiConsumer<SinexEopEntry, Double> consumer) {
61          this.consumer = consumer;
62      }
63  
64      /** {@inheritDoc} */
65      @Override
66      public boolean test(final SinexParseInfo parseInfo) {
67          if (name().equals(parseInfo.parseString(7, 6))) {
68              // this is the data type we are concerned with
69              final AbsoluteDate date = parseInfo.stringEpochToAbsoluteDate(parseInfo.parseString(27, 12), false);
70              consumer.accept(parseInfo.createEOPEntry(date), parseInfo.parseDoubleWithUnit(40, 4, 47, 21));
71              return true;
72          } else {
73              // it is a data type for another predicate
74              return false;
75          }
76      }
77  
78  }