|
1 /* |
|
2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
|
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
|
4 * |
|
5 * This code is free software; you can redistribute it and/or modify it |
|
6 * under the terms of the GNU General Public License version 2 only, as |
|
7 * published by the Free Software Foundation. Oracle designates this |
|
8 * particular file as subject to the "Classpath" exception as provided |
|
9 * by Oracle in the LICENSE file that accompanied this code. |
|
10 * |
|
11 * This code is distributed in the hope that it will be useful, but WITHOUT |
|
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
14 * version 2 for more details (a copy is included in the LICENSE file that |
|
15 * accompanied this code). |
|
16 * |
|
17 * You should have received a copy of the GNU General Public License version |
|
18 * 2 along with this work; if not, write to the Free Software Foundation, |
|
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
|
20 * |
|
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
22 * or visit www.oracle.com if you need additional information or have any |
|
23 * questions. |
|
24 */ |
|
25 |
|
26 package com.sun.xml.internal.bind.v2.model.nav; |
|
27 |
|
28 import java.lang.reflect.MalformedParameterizedTypeException; |
|
29 import java.lang.reflect.ParameterizedType; |
|
30 import java.lang.reflect.Type; |
|
31 import java.lang.reflect.TypeVariable; |
|
32 import java.util.Arrays; |
|
33 |
|
34 |
|
35 /** |
|
36 * {@link ParameterizedType} implementation. |
|
37 */ |
|
38 class ParameterizedTypeImpl implements ParameterizedType { |
|
39 private Type[] actualTypeArguments; |
|
40 private Class<?> rawType; |
|
41 private Type ownerType; |
|
42 |
|
43 ParameterizedTypeImpl(Class<?> rawType, |
|
44 Type[] actualTypeArguments, |
|
45 Type ownerType) { |
|
46 this.actualTypeArguments = actualTypeArguments; |
|
47 this.rawType = rawType; |
|
48 if (ownerType != null) { |
|
49 this.ownerType = ownerType; |
|
50 } else { |
|
51 this.ownerType = rawType.getDeclaringClass(); |
|
52 } |
|
53 validateConstructorArguments(); |
|
54 } |
|
55 |
|
56 private void validateConstructorArguments() { |
|
57 TypeVariable/*<?>*/[] formals = rawType.getTypeParameters(); |
|
58 // check correct arity of actual type args |
|
59 if (formals.length != actualTypeArguments.length) { |
|
60 throw new MalformedParameterizedTypeException(); |
|
61 } |
|
62 /* |
|
63 for (int i = 0; i < actualTypeArguments.length; i++) { |
|
64 // check actuals against formals' bounds |
|
65 } |
|
66 */ |
|
67 } |
|
68 |
|
69 public Type[] getActualTypeArguments() { |
|
70 return actualTypeArguments.clone(); |
|
71 } |
|
72 |
|
73 public Class<?> getRawType() { |
|
74 return rawType; |
|
75 } |
|
76 |
|
77 public Type getOwnerType() { |
|
78 return ownerType; |
|
79 } |
|
80 |
|
81 /* |
|
82 * From the JavaDoc for java.lang.reflect.ParameterizedType |
|
83 * "Instances of classes that implement this interface must |
|
84 * implement an equals() method that equates any two instances |
|
85 * that share the same generic type declaration and have equal |
|
86 * type parameters." |
|
87 */ |
|
88 @Override |
|
89 public boolean equals(Object o) { |
|
90 if (o instanceof ParameterizedType) { |
|
91 // Check that information is equivalent |
|
92 ParameterizedType that = (ParameterizedType) o; |
|
93 |
|
94 if (this == that) |
|
95 return true; |
|
96 |
|
97 Type thatOwner = that.getOwnerType(); |
|
98 Type thatRawType = that.getRawType(); |
|
99 |
|
100 /* |
|
101 if (false) { // Debugging |
|
102 boolean ownerEquality = (ownerType == null ? |
|
103 thatOwner == null : |
|
104 ownerType.equals(thatOwner)); |
|
105 boolean rawEquality = (rawType == null ? |
|
106 thatRawType == null : |
|
107 rawType.equals(thatRawType)); |
|
108 |
|
109 boolean typeArgEquality = Arrays.equals(actualTypeArguments, // avoid clone |
|
110 that.getActualTypeArguments()); |
|
111 for (Type t : actualTypeArguments) { |
|
112 System.out.printf("\t\t%s%s%n", t, t.getClass()); |
|
113 } |
|
114 |
|
115 System.out.printf("\towner %s\traw %s\ttypeArg %s%n", |
|
116 ownerEquality, rawEquality, typeArgEquality); |
|
117 return ownerEquality && rawEquality && typeArgEquality; |
|
118 } |
|
119 */ |
|
120 |
|
121 |
|
122 return |
|
123 (ownerType == null ? |
|
124 thatOwner == null : |
|
125 ownerType.equals(thatOwner)) && |
|
126 (rawType == null ? |
|
127 thatRawType == null : |
|
128 rawType.equals(thatRawType)) && |
|
129 Arrays.equals(actualTypeArguments, // avoid clone |
|
130 that.getActualTypeArguments()); |
|
131 } else |
|
132 return false; |
|
133 } |
|
134 |
|
135 @Override |
|
136 public int hashCode() { |
|
137 return Arrays.hashCode(actualTypeArguments) ^ |
|
138 (ownerType == null ? 0 : ownerType.hashCode()) ^ |
|
139 (rawType == null ? 0 : rawType.hashCode()); |
|
140 } |
|
141 |
|
142 public String toString() { |
|
143 StringBuilder sb = new StringBuilder(); |
|
144 |
|
145 if (ownerType != null) { |
|
146 if (ownerType instanceof Class) |
|
147 sb.append(((Class) ownerType).getName()); |
|
148 else |
|
149 sb.append(ownerType.toString()); |
|
150 |
|
151 sb.append("."); |
|
152 |
|
153 if (ownerType instanceof ParameterizedTypeImpl) { |
|
154 // Find simple name of nested type by removing the |
|
155 // shared prefix with owner. |
|
156 sb.append(rawType.getName().replace(((ParameterizedTypeImpl) ownerType).rawType.getName() + "$", |
|
157 "")); |
|
158 } else |
|
159 sb.append(rawType.getName()); |
|
160 } else |
|
161 sb.append(rawType.getName()); |
|
162 |
|
163 if (actualTypeArguments != null && |
|
164 actualTypeArguments.length > 0) { |
|
165 sb.append("<"); |
|
166 boolean first = true; |
|
167 for (Type t : actualTypeArguments) { |
|
168 if (!first) |
|
169 sb.append(", "); |
|
170 if (t instanceof Class) |
|
171 sb.append(((Class) t).getName()); |
|
172 else |
|
173 sb.append(t.toString()); |
|
174 first = false; |
|
175 } |
|
176 sb.append(">"); |
|
177 } |
|
178 |
|
179 return sb.toString(); |
|
180 } |
|
181 } |