1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF 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
18 package org.apache.commons.proxy2.interceptor.matcher.invocation;
19
20 import org.apache.commons.proxy2.Invocation;
21 import org.apache.commons.proxy2.interceptor.matcher.InvocationMatcher;
22
23 /**
24 * InvocationMatcher based on declaring class of the method invoked.
25 */
26 public class DeclaredByMatcher implements InvocationMatcher
27 {
28 //******************************************************************************************************************
29 // Fields
30 //******************************************************************************************************************
31
32 private final boolean exactMatch;
33 private final Class<?> declaredByType;
34
35 //******************************************************************************************************************
36 // Constructors
37 //******************************************************************************************************************
38
39 /**
40 * Equivalent to {@link #DeclaredByMatcher(Class, boolean)}{@code (declaredByType, false)}
41 *
42 * @param declaredByType
43 */
44 public DeclaredByMatcher(Class<?> declaredByType)
45 {
46 this(declaredByType, false);
47 }
48
49 /**
50 * Create a {@link DeclaredByMatcher} instance.
51 *
52 * @param declaredByType
53 * type by which method must be declared
54 * @param exactMatch
55 * if {@code false}, {@code declaredByType} may be a subclass of the actual declaring class of the
56 * invocation method.
57 */
58 public DeclaredByMatcher(Class<?> declaredByType, boolean exactMatch)
59 {
60 this.declaredByType = declaredByType;
61 this.exactMatch = exactMatch;
62 }
63
64 //******************************************************************************************************************
65 // InvocationMatcher Implementation
66 //******************************************************************************************************************
67
68 @Override
69 public boolean matches(Invocation invocation)
70 {
71 final Class<?> owner = invocation.getMethod().getDeclaringClass();
72 return exactMatch ? declaredByType.equals(owner) : owner.isAssignableFrom(declaredByType);
73 }
74 }