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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.core.datatype.adapter;
28  
29  import gov.nist.secauto.metaschema.core.metapath.item.atomic.IAnyAtomicItem;
30  import gov.nist.secauto.metaschema.core.metapath.item.atomic.IBooleanItem;
31  import gov.nist.secauto.metaschema.core.metapath.item.atomic.IDecimalItem;
32  import gov.nist.secauto.metaschema.core.metapath.item.atomic.IIntegerItem;
33  import gov.nist.secauto.metaschema.core.metapath.item.atomic.INumericItem;
34  import gov.nist.secauto.metaschema.core.util.ObjectUtils;
35  
36  import java.math.BigInteger;
37  import java.util.List;
38  
39  import edu.umd.cs.findbugs.annotations.NonNull;
40  
41  public class IntegerAdapter
42      extends AbstractIntegerAdapter<IIntegerItem> {
43    @NonNull
44    private static final List<String> NAMES = ObjectUtils.notNull(
45        List.of("integer"));
46  
47    IntegerAdapter() {
48      // avoid general construction
49    }
50  
51    @Override
52    public List<String> getNames() {
53      return NAMES;
54    }
55  
56    @Override
57    public @NonNull Class<IIntegerItem> getItemClass() {
58      return IIntegerItem.class;
59    }
60  
61    @Override
62    public IIntegerItem newItem(Object value) {
63      BigInteger item = toValue(value);
64      return IIntegerItem.valueOf(item);
65    }
66  
67    @Override
68    protected IIntegerItem castInternal(@NonNull IAnyAtomicItem item) {
69      IIntegerItem retval;
70      if (item instanceof INumericItem) {
71        if (item instanceof IIntegerItem) {
72          retval = (IIntegerItem) item;
73        } else {
74          // must be a decimal type
75          retval = newItem(((IDecimalItem) item).asInteger());
76        }
77      } else if (item instanceof IBooleanItem) {
78        boolean value = ((IBooleanItem) item).toBoolean();
79        retval = value ? IIntegerItem.ONE : IIntegerItem.ZERO;
80      } else {
81        retval = super.castInternal(item);
82      }
83      return retval;
84    }
85  }