-
Notifications
You must be signed in to change notification settings - Fork 37.7k
/
ReplaceOverride.java
120 lines (102 loc) · 3.49 KB
/
ReplaceOverride.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
/*
* Copyright 2002-2020 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.beans.factory.support;
import java.lang.reflect.Method;
import java.util.LinkedList;
import java.util.List;
import org.springframework.util.Assert;
import org.springframework.util.ObjectUtils;
/**
* Extension of MethodOverride that represents an arbitrary
* override of a method by the IoC container.
*
* <p>Any non-final method can be overridden, irrespective of its
* parameters and return types.
*
* @author Rod Johnson
* @author Juergen Hoeller
* @since 1.1
*/
public class ReplaceOverride extends MethodOverride {
private final String methodReplacerBeanName;
private final List<String> typeIdentifiers = new LinkedList<String>();
/**
* Construct a new ReplaceOverride.
* @param methodName the name of the method to override
* @param methodReplacerBeanName the bean name of the MethodReplacer
*/
public ReplaceOverride(String methodName, String methodReplacerBeanName) {
super(methodName);
Assert.notNull(methodReplacerBeanName, "Method replacer bean name must not be null");
this.methodReplacerBeanName = methodReplacerBeanName;
}
/**
* Return the name of the bean implementing MethodReplacer.
*/
public String getMethodReplacerBeanName() {
return this.methodReplacerBeanName;
}
/**
* Add a fragment of a class string, like "Exception"
* or "java.lang.Exc", to identify a parameter type.
* @param identifier a substring of the fully qualified class name
*/
public void addTypeIdentifier(String identifier) {
this.typeIdentifiers.add(identifier);
}
@Override
public boolean matches(Method method) {
if (!method.getName().equals(getMethodName())) {
return false;
}
if (!isOverloaded()) {
// Not overloaded: don't worry about arg type matching...
return true;
}
// If we get here, we need to insist on precise argument matching...
Class<?>[] parameterTypes = method.getParameterTypes();
if (this.typeIdentifiers.size() != parameterTypes.length) {
return false;
}
for (int i = 0; i < this.typeIdentifiers.size(); i++) {
String identifier = this.typeIdentifiers.get(i);
if (!parameterTypes[i].getName().contains(identifier)) {
return false;
}
}
return true;
}
@Override
public boolean equals(Object other) {
if (!(other instanceof ReplaceOverride) || !super.equals(other)) {
return false;
}
ReplaceOverride that = (ReplaceOverride) other;
return (ObjectUtils.nullSafeEquals(this.methodReplacerBeanName, that.methodReplacerBeanName) &&
ObjectUtils.nullSafeEquals(this.typeIdentifiers, that.typeIdentifiers));
}
@Override
public int hashCode() {
int hashCode = super.hashCode();
hashCode = 29 * hashCode + ObjectUtils.nullSafeHashCode(this.methodReplacerBeanName);
hashCode = 29 * hashCode + ObjectUtils.nullSafeHashCode(this.typeIdentifiers);
return hashCode;
}
@Override
public String toString() {
return "Replace override for method '" + getMethodName() + "'";
}
}