1 /**
2 *
3 * Copyright 2003-2004 The Apache Software Foundation
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * 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.geronimo.gbean;
19
20 import java.lang.reflect.Method;
21 import java.util.List;
22
23 /**
24 * This is a key class based on a MBean operation name and parameters.
25 *
26 * @version $Rev: 355877 $ $Date: 2005-12-10 18:48:27 -0800 (Sat, 10 Dec 2005) $
27 */
28 public final class GOperationSignature {
29 private final static String[] NO_TYPES = new String[0];
30 private final String name;
31 private final String[] argumentTypes;
32
33 public GOperationSignature(Method method) {
34 name = method.getName();
35 Class[] parameters = method.getParameterTypes();
36 argumentTypes = new String[parameters.length];
37 for (int i = 0; i < parameters.length; i++) {
38 argumentTypes[i] = parameters[i].getName();
39 }
40 }
41
42 public GOperationSignature(String name, String[] argumentTypes) {
43 this.name = name;
44 if (argumentTypes != null) {
45 this.argumentTypes = argumentTypes;
46 } else {
47 this.argumentTypes = NO_TYPES;
48 }
49 }
50
51 public GOperationSignature(String name, List argumentTypes) {
52 this.name = name;
53 if (argumentTypes != null) {
54 this.argumentTypes = new String[argumentTypes.size()];
55 for (int i = 0; i < argumentTypes.size(); i++) {
56 this.argumentTypes[i] = (String) argumentTypes.get(i);
57 }
58 } else {
59 this.argumentTypes = NO_TYPES;
60 }
61 }
62
63 public boolean equals(Object object) {
64 if (!(object instanceof GOperationSignature)) {
65 return false;
66 }
67
68
69 GOperationSignature methodKey = (GOperationSignature) object;
70 if (!methodKey.name.equals(name)) {
71 return false;
72 }
73
74
75 int length = methodKey.argumentTypes.length;
76 if (length != argumentTypes.length) {
77 return false;
78 }
79
80
81 for (int i = 0; i < length; i++) {
82 if (!methodKey.argumentTypes[i].equals(argumentTypes[i])) {
83 return false;
84 }
85 }
86 return true;
87 }
88
89 public int hashCode() {
90 int result = 17;
91 result = 37 * result + name.hashCode();
92 for (int i = 0; i < argumentTypes.length; i++) {
93 result = 37 * result + argumentTypes[i].hashCode();
94 }
95 return result;
96 }
97
98 public String toString() {
99 StringBuffer buffer = new StringBuffer(name).append("(");
100 for (int i = 0; i < argumentTypes.length; i++) {
101 if (i > 0) {
102 buffer.append(", ");
103 }
104 buffer.append(argumentTypes[i]);
105 }
106 return buffer.append(")").toString();
107 }
108 }