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.databind.model;
28
29 import java.lang.reflect.Method;
30 import java.util.Collections;
31 import java.util.LinkedList;
32 import java.util.List;
33
34 final class ClassIntrospector {
35 private ClassIntrospector() {
36 // disable construction
37 }
38
39 public static List<Method> getMatchingMethods(Class<?> clazz, String name, Class<?>... parameterTypes) {
40
41 List<Method> retval = new LinkedList<>();
42 Class<?> searchClass = clazz;
43 do {
44 try {
45 Method method = searchClass.getDeclaredMethod(name, parameterTypes);
46 retval.add(method);
47 } catch (NoSuchMethodException ex) {
48 // do nothing, no matching method was found
49 }
50 } while ((searchClass = searchClass.getSuperclass()) != null);
51
52 return retval.isEmpty() ? Collections.emptyList() : Collections.unmodifiableList(retval);
53 }
54
55 public static Method getMatchingMethod(Class<?> clazz, String name, Class<?>... parameterTypes) {
56 Method retval = null;
57 Class<?> searchClass = clazz;
58 do {
59 try {
60 retval = searchClass.getDeclaredMethod(name, parameterTypes);
61 // stop on first found method
62 break;
63 } catch (NoSuchMethodException ex) {
64 // do nothing, no matching method was found
65 }
66 } while ((searchClass = searchClass.getSuperclass()) != null);
67
68 return retval;
69 }
70 }