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1   /*
2    * Portions of this software was developed by employees of the National Institute
3    * of Standards and Technology (NIST), an agency of the Federal Government and is
4    * being made available as a public service. Pursuant to title 17 United States
5    * Code Section 105, works of NIST employees are not subject to copyright
6    * protection in the United States. This software may be subject to foreign
7    * copyright. Permission in the United States and in foreign countries, to the
8    * extent that NIST may hold copyright, to use, copy, modify, create derivative
9    * works, and distribute this software and its documentation without fee is hereby
10   * granted on a non-exclusive basis, provided that this notice and disclaimer
11   * of warranty appears in all copies.
12   *
13   * THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER
14   * EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY
15   * THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF
16   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM
17   * INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE
18   * SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE.  IN NO EVENT
19   * SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT,
20   * INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM,
21   * OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY,
22   * CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR
23   * PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT
24   * OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER.
25   */
26  
27  package gov.nist.secauto.metaschema.schemagen.json.schema;
28  
29  import gov.nist.secauto.metaschema.core.util.ObjectUtils;
30  import gov.nist.secauto.metaschema.schemagen.json.impl.JsonGenerationState;
31  
32  import edu.umd.cs.findbugs.annotations.NonNull;
33  import edu.umd.cs.findbugs.annotations.Nullable;
34  
35  public abstract class AbstractDefineableJsonSchema implements IDefineableJsonSchema {
36    @Nullable
37    private String name;
38  
39    protected abstract String generateDefinitionName(@NonNull JsonGenerationState state);
40  
41    @Override
42    public String getDefinitionName(JsonGenerationState state) {
43      if (!isDefinition(state)) {
44        throw new IllegalStateException();
45      }
46  
47      synchronized (this) {
48        if (name == null) {
49          name = generateDefinitionName(state);
50        }
51        assert name != null;
52        return name;
53      }
54    }
55  
56    @Override
57    public String getDefinitionRef(JsonGenerationState state) {
58      if (!isDefinition(state)) {
59        throw new IllegalStateException();
60      }
61  
62      return ObjectUtils.notNull(new StringBuilder()
63          .append("#/definitions/")
64          .append(getDefinitionName(state))
65          .toString());
66    }
67  }