1 /*
2 * The Apache Software License, Version 1.1
3 *
4 * Copyright (c) 2002 The Apache Software Foundation. All rights
5 * reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
17 * distribution.
18 *
19 * 3. The end-user documentation included with the redistribution,
20 * if any, must include the following acknowledgment:
21 * "This product includes software developed by the
22 * Apache Software Foundation (http://www.apache.org/)."
23 * Alternately, this acknowledgment may appear in the software itself,
24 * if and wherever such third-party acknowledgments normally appear.
25 *
26 * 4. The names "Apache" and "Apache Software Foundation" must
27 * not be used to endorse or promote products derived from this
28 * software without prior written permission. For written
29 * permission, please contact apache@apache.org.
30 *
31 * 5. Products derived from this software may not be called "Apache",
32 * nor may "Apache" appear in their name, without prior written
33 * permission of the Apache Software Foundation.
34 *
35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46 * SUCH DAMAGE.
47 * ====================================================================
48 *
49 * This software consists of voluntary contributions made by many
50 * individuals on behalf of the Apache Software Foundation. For more
51 * information on the Apache Software Foundation, please see
52 * <http://www.apache.org/>;.
53 */
54 package net.sf.cglib.transform.impl;
55
56 import net.sf.cglib.transform.*;
57 import net.sf.cglib.core.Constants;
58 import net.sf.cglib.core.ReflectUtils;
59 import net.sf.cglib.beans.*;
60 import java.util.*;
61 import java.lang.reflect.Method;
62 import junit.framework.*;
63 import org.objectweb.asm.Type;
64
65 /***
66 * @version $Id: TestTransformingLoader.java,v 1.3 2003/12/20 23:22:11 herbyderby Exp $
67 */
68 public class TestTransformingLoader extends net.sf.cglib.CodeGenTestCase {
69
70 private static final ClassFilter TEST_FILTER = new ClassFilter() {
71 public boolean accept(String name) {
72 System.err.println("Loading " + name);
73 return name.startsWith("net.sf.cglib.");
74 }
75 };
76
77 private ClassTransformer getExampleTransformer(String name, Type type) {
78 return new AddPropertyTransformer(new String[]{ name }, new Type[]{ type });
79 }
80
81 public void testExample() throws Exception {
82 ClassTransformer t1 = getExampleTransformer("herby", Constants.TYPE_STRING);
83 ClassTransformer t2 = getExampleTransformer("derby", Type.DOUBLE_TYPE);
84 ClassTransformer chain = new ClassTransformerChain(new ClassTransformer[]{ t1, t2 });
85 Class loaded = loadHelper(chain, Example.class);
86 Object obj = loaded.newInstance();
87 String value = "HELLO";
88 loaded.getMethod("setHerby", new Class[]{ String.class }).invoke(obj, new Object[]{ value });
89 assertTrue(value.equals(loaded.getMethod("getHerby", null).invoke(obj, null)));
90
91 loaded.getMethod("setDerby", new Class[]{ Double.TYPE }).invoke(obj, new Object[]{ new Double(1.23456789d) });
92 }
93
94 private static Class inited;
95
96 public static void initStatic(Class foo) {
97 System.err.println("INITING: " + foo);
98 }
99
100 public void testAddStatic() throws Exception {
101 Method m = ReflectUtils.findMethod("net.sf.cglib.transform.impl.TestTransformingLoader.initStatic(Class)");
102 ClassTransformer t = new AddStaticInitTransformer(m);
103 // t = new ClassTransformerChain(new ClassTransformer[]{ t, new ClassTransformerTee(new org.objectweb.asm.util.TraceClassVisitor(null, new java.io.PrintWriter(System.out))) });
104 Class loaded = loadHelper(t, Example.class);
105 Object obj = loaded.newInstance();
106 // TODO
107 }
108
109 public void testInterceptField() throws Exception {
110 ClassTransformer t = new InterceptFieldTransformer(new InterceptFieldFilter() {
111 public boolean acceptRead(Type owner, String name) {
112 return true;
113 }
114 public boolean acceptWrite(Type owner, String name) {
115 return true;
116 }
117 });
118 Class loaded = loadHelper(t, Example.class);
119 // TODO
120 }
121
122 public void testFieldProvider() throws Exception {
123 ClassTransformer t = new FieldProviderTransformer();
124 Class loaded = loadHelper(t, Example.class);
125 // TODO
126 // FieldProvider fp = (FieldProvider)loaded.newInstance();
127 // assertTrue(((Integer)fp.getField("example")).intValue() == 42);
128 // fp.setField("example", new Integer(6));
129 // assertTrue(((Integer)fp.getField("example")).intValue() == 6);
130 // assertTrue(fp.getField("example") == null);
131 // try {
132 // fp.getField("dsfjkl");
133 // fail("expected exception");
134 // } catch (IllegalArgumentException ignore) { }
135 }
136
137 private static Class loadHelper( final ClassTransformer t, Class target) throws ClassNotFoundException {
138 ClassLoader parent = TestTransformingLoader.class.getClassLoader();
139 TransformingClassLoader loader = new TransformingClassLoader(parent, TEST_FILTER,
140
141 new ClassTransformerFactory(){
142 public ClassTransformer newInstance(){
143 return t;
144 }
145 }
146
147 );
148 return loader.loadClass(target.getName());
149 }
150
151 public TestTransformingLoader(String testName) {
152 super(testName);
153 }
154
155 public static void main(String[] args) {
156 junit.textui.TestRunner.run(suite());
157 }
158
159 public static Test suite() {
160 return new TestSuite(TestTransformingLoader.class);
161 }
162
163 }
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