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1   /*
2    * Copyright 2015 Data Archiving and Networked Services (an institute of
3    * Koninklijke Nederlandse Akademie van Wetenschappen), King's College London,
4    * Georg-August-Universitaet Goettingen Stiftung Oeffentlichen Rechts
5    *
6    * Licensed under the EUPL, Version 1.1 or – as soon they will be approved by
7    * the European Commission - subsequent versions of the EUPL (the "Licence");
8    * You may not use this work except in compliance with the Licence.
9    * You may obtain a copy of the Licence at:
10   *
11   * https://joinup.ec.europa.eu/software/page/eupl
12   *
13   * Unless required by applicable law or agreed to in writing, software
14   * distributed under the Licence is distributed on an "AS IS" basis,
15   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16   * See the Licence for the specific language governing
17   * permissions and limitations under the Licence.
18   */
19  
20  package eu.ehri.project.oaipmh;
21  
22  import eu.ehri.project.models.DocumentaryUnit;
23  
24  import java.util.Optional;
25  
26  class OaiPmhRecordResult {
27  
28      private final DocumentaryUnit doc;
29      private final OaiPmhDeleted deleted;
30  
31      private OaiPmhRecordResult(OaiPmhDeleted deleted, DocumentaryUnit doc) {
32          this.doc = doc;
33          this.deleted = deleted;
34      }
35  
36      static OaiPmhRecordResult of(DocumentaryUnit doc) {
37          return new OaiPmhRecordResult(null, doc);
38      }
39  
40      static OaiPmhRecordResult deleted(OaiPmhDeleted deleted) {
41          return new OaiPmhRecordResult(deleted, null);
42      }
43  
44      static OaiPmhRecordResult invalid() {
45          return new OaiPmhRecordResult(null, null);
46      }
47  
48      Optional<DocumentaryUnit> doc() {
49          return Optional.ofNullable(doc);
50      }
51  
52      Optional<OaiPmhDeleted> deleted() {
53          return Optional.ofNullable(deleted);
54      }
55  
56      boolean isInvalid() {
57          return deleted == null && doc == null;
58      }
59  }