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My first initial commit with all of mine experimental changes.

Dmitry Kabak (userdima committed 13 years ago

Commit d37b88d1 parent 3f5b46618352 files · +2598093 −-8690Browse files

Showing the changes to java/pkg/sun/nio/ch/Reflect.java (1 of 18352 files). Show all

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java/pkg/sun/nio/ch/Reflect.java+169−0
@@ -0,0 +1,169 @@
1/*
2 * Copyright (c) 2000, 2009, 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
26package sun.nio.ch;
27
28import java.io.*;
29import java.lang.reflect.*;
30import java.security.AccessController;
31import java.security.PrivilegedAction;
32
33
34class Reflect { // package-private
35
36 private Reflect() { }
37
38 private static class ReflectionError extends Error {
39 private static final long serialVersionUID = -8659519328078164097L;
40 ReflectionError(Throwable x) {
41 super(x);
42 }
43 }
44
45 private static void setAccessible(final AccessibleObject ao) {
46 AccessController.doPrivileged(new PrivilegedAction<Void>() {
47 public Void run() {
48 ao.setAccessible(true);
49 return null;
50 }});
51 }
52
53 static Constructor lookupConstructor(String className,
54 Class[] paramTypes)
55 {
56 try {
57 Class<?> cl = Class.forName(className);
58 Constructor<?> c = cl.getDeclaredConstructor(paramTypes);
59 setAccessible(c);
60 return c;
61 } catch (ClassNotFoundException x) {
62 throw new ReflectionError(x);
63 } catch (NoSuchMethodException x) {
64 throw new ReflectionError(x);
65 }
66 }
67
68 static Object invoke(Constructor c, Object[] args) {
69 try {
70 return c.newInstance(args);
71 } catch (InstantiationException x) {
72 throw new ReflectionError(x);
73 } catch (IllegalAccessException x) {
74 throw new ReflectionError(x);
75 } catch (InvocationTargetException x) {
76 throw new ReflectionError(x);
77 }
78 }
79
80 static Method lookupMethod(String className,
81 String methodName,
82 Class... paramTypes)
83 {
84 try {
85 Class<?> cl = Class.forName(className);
86 Method m = cl.getDeclaredMethod(methodName, paramTypes);
87 setAccessible(m);
88 return m;
89 } catch (ClassNotFoundException x) {
90 throw new ReflectionError(x);
91 } catch (NoSuchMethodException x) {
92 throw new ReflectionError(x);
93 }
94 }
95
96 static Object invoke(Method m, Object ob, Object[] args) {
97 try {
98 return m.invoke(ob, args);
99 } catch (IllegalAccessException x) {
100 throw new ReflectionError(x);
101 } catch (InvocationTargetException x) {
102 throw new ReflectionError(x);
103 }
104 }
105
106 static Object invokeIO(Method m, Object ob, Object[] args)
107 throws IOException
108 {
109 try {
110 return m.invoke(ob, args);
111 } catch (IllegalAccessException x) {
112 throw new ReflectionError(x);
113 } catch (InvocationTargetException x) {
114 if (IOException.class.isInstance(x.getCause()))
115 throw (IOException)x.getCause();
116 throw new ReflectionError(x);
117 }
118 }
119
120 static Field lookupField(String className, String fieldName) {
121 try {
122 Class cl = Class.forName(className);
123 Field f = cl.getDeclaredField(fieldName);
124 setAccessible(f);
125 return f;
126 } catch (ClassNotFoundException x) {
127 throw new ReflectionError(x);
128 } catch (NoSuchFieldException x) {
129 throw new ReflectionError(x);
130 }
131 }
132
133 static Object get(Object ob, Field f) {
134 try {
135 return f.get(ob);
136 } catch (IllegalAccessException x) {
137 throw new ReflectionError(x);
138 }
139 }
140
141 static Object get(Field f) {
142 return get(null, f);
143 }
144
145 static void set(Object ob, Field f, Object val) {
146 try {
147 f.set(ob, val);
148 } catch (IllegalAccessException x) {
149 throw new ReflectionError(x);
150 }
151 }
152
153 static void setInt(Object ob, Field f, int val) {
154 try {
155 f.setInt(ob, val);
156 } catch (IllegalAccessException x) {
157 throw new ReflectionError(x);
158 }
159 }
160
161 static void setBoolean(Object ob, Field f, boolean val) {
162 try {
163 f.setBoolean(ob, val);
164 } catch (IllegalAccessException x) {
165 throw new ReflectionError(x);
166 }
167 }
168
169}