|
|||||||||||||||||||
30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
GroovyCategorySupport.java | 0% | 0% | 0% | 0% |
|
1 |
/*
|
|
2 |
* $Id: GroovyCategorySupport.java,v 1.6 2004/07/10 03:31:42 bran Exp $version Apr 26, 2004 4:22:50 PM $user Exp $
|
|
3 |
*
|
|
4 |
* Copyright 2003 (C) Sam Pullara. All Rights Reserved.
|
|
5 |
*
|
|
6 |
* Redistribution and use of this software and associated documentation
|
|
7 |
* ("Software"), with or without modification, are permitted provided that the
|
|
8 |
* following conditions are met: 1. Redistributions of source code must retain
|
|
9 |
* copyright statements and notices. Redistributions must also contain a copy
|
|
10 |
* of this document. 2. Redistributions in binary form must reproduce the above
|
|
11 |
* copyright notice, this list of conditions and the following disclaimer in
|
|
12 |
* the documentation and/or other materials provided with the distribution. 3.
|
|
13 |
* The name "groovy" must not be used to endorse or promote products derived
|
|
14 |
* from this Software without prior written permission of The Codehaus. For
|
|
15 |
* written permission, please contact info@codehaus.org. 4. Products derived
|
|
16 |
* from this Software may not be called "groovy" nor may "groovy" appear in
|
|
17 |
* their names without prior written permission of The Codehaus. "groovy" is a
|
|
18 |
* registered trademark of The Codehaus. 5. Due credit should be given to The
|
|
19 |
* Codehaus - http://groovy.codehaus.org/
|
|
20 |
*
|
|
21 |
* THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS ``AS IS'' AND ANY
|
|
22 |
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
23 |
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
24 |
* DISCLAIMED. IN NO EVENT SHALL THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR
|
|
25 |
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
26 |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
27 |
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
28 |
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
29 |
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
30 |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
|
|
31 |
* DAMAGE.
|
|
32 |
*
|
|
33 |
*/
|
|
34 |
package org.codehaus.groovy.runtime;
|
|
35 |
|
|
36 |
import groovy.lang.Closure;
|
|
37 |
import groovy.lang.MetaMethod;
|
|
38 |
|
|
39 |
import java.lang.reflect.Method;
|
|
40 |
import java.lang.reflect.Modifier;
|
|
41 |
import java.util.ArrayList;
|
|
42 |
import java.util.Collections;
|
|
43 |
import java.util.HashMap;
|
|
44 |
import java.util.Iterator;
|
|
45 |
import java.util.List;
|
|
46 |
import java.util.Map;
|
|
47 |
import java.util.WeakHashMap;
|
|
48 |
|
|
49 |
|
|
50 |
/**
|
|
51 |
* @author sam
|
|
52 |
*/
|
|
53 |
public class GroovyCategorySupport { |
|
54 |
|
|
55 |
/**
|
|
56 |
* This method is used to pull all the new methods out of the local thread context with a particular name.
|
|
57 |
*
|
|
58 |
* @param categorizedClass
|
|
59 |
* @param name
|
|
60 |
* @return
|
|
61 |
*/
|
|
62 | 0 |
public static List getCategoryMethods(Class categorizedClass, String name) { |
63 | 0 |
Map properties = getProperties(); |
64 | 0 |
List methodList = new ArrayList();
|
65 | 0 |
for (Iterator i = properties.keySet().iterator(); i.hasNext(); ) {
|
66 | 0 |
Class current = (Class) i.next(); |
67 | 0 |
if (current.isAssignableFrom(categorizedClass)) {
|
68 | 0 |
Map metaMethodsMap = (Map) properties.get(current); |
69 | 0 |
List newMethodList = (List) metaMethodsMap.get(name); |
70 | 0 |
if (newMethodList != null) { |
71 | 0 |
methodList.addAll(newMethodList); |
72 |
} |
|
73 |
} |
|
74 |
} |
|
75 | 0 |
if (methodList.size() == 0) return null; |
76 | 0 |
return methodList;
|
77 |
} |
|
78 |
|
|
79 |
/**
|
|
80 |
* This method is delegated to from the global use(CategoryClass) method. It scans the Category class for static methods
|
|
81 |
* that take 1 or more parameters. The first parameter is the class you are adding the category method to, additional parameters
|
|
82 |
* are those paramteres needed by that method. A use statement cannot be undone and is valid only for the current thread.
|
|
83 |
*
|
|
84 |
* @param categoryClass
|
|
85 |
*/
|
|
86 | 0 |
private static void use(Class categoryClass) { |
87 | 0 |
Map properties = getProperties(); |
88 | 0 |
Method[] methods = categoryClass.getMethods(); |
89 | 0 |
for (int i = 0; i < methods.length; i++) { |
90 | 0 |
Method method = methods[i]; |
91 | 0 |
if (Modifier.isStatic(method.getModifiers())) {
|
92 | 0 |
Class[] paramTypes = method.getParameterTypes(); |
93 | 0 |
if (paramTypes.length > 0) {
|
94 | 0 |
Class metaClass = paramTypes[0]; |
95 | 0 |
Map metaMethodsMap = getMetaMethods(properties, metaClass); |
96 | 0 |
List methodList = getMethodList(metaMethodsMap, method.getName()); |
97 | 0 |
MetaMethod mmethod = new NewInstanceMetaMethod(new MetaMethod(method)) { |
98 | 0 |
public boolean isCacheable() { return false; } |
99 |
}; |
|
100 | 0 |
methodList.add(mmethod); |
101 |
} |
|
102 |
} |
|
103 |
} |
|
104 |
} |
|
105 |
|
|
106 |
/**
|
|
107 |
* @param clazz
|
|
108 |
* @param closure
|
|
109 |
*/
|
|
110 | 0 |
public static void use(Class clazz, Closure closure) { |
111 | 0 |
newScope(); |
112 | 0 |
try {
|
113 | 0 |
use(clazz); |
114 | 0 |
closure.call(); |
115 |
} finally {
|
|
116 | 0 |
endScope(); |
117 |
} |
|
118 |
} |
|
119 |
|
|
120 |
/**
|
|
121 |
* @param classes
|
|
122 |
* @param closure
|
|
123 |
*/
|
|
124 | 0 |
public static void use(List classes, Closure closure) { |
125 | 0 |
newScope(); |
126 | 0 |
try {
|
127 | 0 |
for (Iterator i = classes.iterator(); i.hasNext(); ) {
|
128 | 0 |
Class clazz = (Class) i.next(); |
129 | 0 |
use(clazz); |
130 |
} |
|
131 | 0 |
closure.call(); |
132 |
} finally {
|
|
133 | 0 |
endScope(); |
134 |
} |
|
135 |
} |
|
136 |
|
|
137 |
private static ThreadLocal local = new ThreadLocal() { |
|
138 | 0 |
protected Object initialValue() {
|
139 | 0 |
List stack = new ArrayList();
|
140 | 0 |
stack.add(Collections.EMPTY_MAP); |
141 | 0 |
return stack;
|
142 |
} |
|
143 |
}; |
|
144 |
|
|
145 | 0 |
private static void newScope() { |
146 | 0 |
List stack = (List) local.get(); |
147 | 0 |
Map properties = new WeakHashMap(getProperties());
|
148 | 0 |
stack.add(properties); |
149 |
} |
|
150 |
|
|
151 | 0 |
private static void endScope() { |
152 | 0 |
List stack = (List) local.get(); |
153 | 0 |
stack.remove(stack.size() - 1); |
154 |
} |
|
155 |
|
|
156 | 0 |
private static Map getProperties() { |
157 | 0 |
List stack = (List) local.get(); |
158 | 0 |
Map properties = (Map) stack.get(stack.size() - 1); |
159 | 0 |
return properties;
|
160 |
} |
|
161 |
|
|
162 |
/**
|
|
163 |
* @param method
|
|
164 |
* @param metaMethodsMap
|
|
165 |
* @return
|
|
166 |
*/
|
|
167 | 0 |
private static List getMethodList(Map metaMethodsMap, String name) { |
168 | 0 |
List methodList = (List) metaMethodsMap.get(name); |
169 | 0 |
if (methodList == null) { |
170 | 0 |
methodList = new ArrayList(1);
|
171 | 0 |
metaMethodsMap.put(name, methodList); |
172 |
} |
|
173 | 0 |
return methodList;
|
174 |
} |
|
175 |
|
|
176 |
/**
|
|
177 |
* @param properties
|
|
178 |
* @param metaClass
|
|
179 |
* @return
|
|
180 |
*/
|
|
181 | 0 |
private static Map getMetaMethods(Map properties, Class metaClass) { |
182 | 0 |
Map metaMethodsMap = (Map) properties.get(metaClass); |
183 | 0 |
if (metaMethodsMap == null) { |
184 | 0 |
metaMethodsMap = new HashMap();
|
185 | 0 |
properties.put(metaClass, metaMethodsMap); |
186 |
} |
|
187 | 0 |
return metaMethodsMap;
|
188 |
} |
|
189 |
|
|
190 |
} |
|
191 |
|
|