1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
|
/*
* Copyright © 2010 Reinier Zwitserloot, Roel Spilker and Robbert Jan Grootjans.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package lombok.javac.handlers;
import static lombok.javac.handlers.JavacHandlerUtil.*;
import java.lang.annotation.Annotation;
import lombok.core.AnnotationValues;
import lombok.javac.JavacAnnotationHandler;
import lombok.javac.JavacNode;
import lombok.javac.handlers.JavacHandlerUtil.MemberExistsResult;
import org.mangosdk.spi.ProviderFor;
import com.sun.tools.javac.code.Flags;
import com.sun.tools.javac.tree.TreeMaker;
import com.sun.tools.javac.tree.JCTree.JCAnnotation;
import com.sun.tools.javac.tree.JCTree.JCClassDecl;
import com.sun.tools.javac.tree.JCTree.JCExpression;
import com.sun.tools.javac.tree.JCTree.JCFieldAccess;
import com.sun.tools.javac.tree.JCTree.JCMethodInvocation;
import com.sun.tools.javac.tree.JCTree.JCVariableDecl;
import com.sun.tools.javac.util.List;
import com.sun.tools.javac.util.Name;
public class HandleLog {
private HandleLog() {
throw new UnsupportedOperationException();
}
public static boolean processAnnotation(LoggingFramework framework, AnnotationValues<?> annotation, JavacNode annotationNode) {
markAnnotationAsProcessed(annotationNode, framework.getAnnotationClass());
// String loggingClassName = annotation.getRawExpression("value");
// if (loggingClassName == null) loggingClassName = "void";
// if (loggingClassName.endsWith(".class")) loggingClassName = loggingClassName.substring(0, loggingClassName.length() - 6);
JCExpression annotationValue = (JCExpression) annotation.getActualExpression("value");
JCFieldAccess loggingType = null;
if (annotationValue != null) {
if (!(annotationValue instanceof JCFieldAccess)) return true;
loggingType = (JCFieldAccess) annotationValue;
if (!loggingType.name.contentEquals("class")) return true;
}
JavacNode typeNode = annotationNode.up();
switch (typeNode.getKind()) {
case TYPE:
if ((((JCClassDecl)typeNode.get()).mods.flags & Flags.INTERFACE)!= 0) {
annotationNode.addError("@Log is legal only on classes and enums.");
return true;
}
if (fieldExists("log", typeNode)!= MemberExistsResult.NOT_EXISTS) {
annotationNode.addWarning("Field 'log' already exists.");
return true;
}
if (loggingType == null) {
loggingType = selfType(typeNode);
}
createField(framework, typeNode, loggingType);
return true;
default:
annotationNode.addError("@Log is legal only on types.");
return true;
}
}
private static JCFieldAccess selfType(JavacNode typeNode) {
TreeMaker maker = typeNode.getTreeMaker();
Name name = ((JCClassDecl) typeNode.get()).name;
return maker.Select(maker.Ident(name), typeNode.toName("class"));
}
private static boolean createField(LoggingFramework framework, JavacNode typeNode, JCFieldAccess loggingType) {
TreeMaker maker = typeNode.getTreeMaker();
// private static final <loggerType> log = <factoryMethod>(<parameter>);
JCExpression loggerType = chainDotsString(maker, typeNode, framework.getLoggerTypeName());
JCExpression factoryMethod = chainDotsString(maker, typeNode, framework.getLoggerFactoryMethodName());
JCExpression loggerName = framework.createFactoryParameter(typeNode, loggingType);
JCMethodInvocation factoryMethodCall = maker.Apply(List.<JCExpression>nil(), factoryMethod, List.<JCExpression>of(loggerName));
JCVariableDecl fieldDecl = maker.VarDef(
maker.Modifiers(Flags.PRIVATE | Flags.FINAL | Flags.STATIC),
typeNode.toName("log"), loggerType, factoryMethodCall);
injectField(typeNode, fieldDecl);
return true;
}
/**
* Handles the {@link lombok.extern.apachecommons.Log} annotation for javac.
*/
@ProviderFor(JavacAnnotationHandler.class)
public static class HandleCommonsLog implements JavacAnnotationHandler<lombok.extern.apachecommons.Log> {
@Override public boolean handle(AnnotationValues<lombok.extern.apachecommons.Log> annotation, JCAnnotation ast, JavacNode annotationNode) {
return processAnnotation(LoggingFramework.COMMONS, annotation, annotationNode);
}
@Override public boolean isResolutionBased() {
return false;
}
}
/**
* Handles the {@link lombok.extern.jul.Log} annotation for javac.
*/
@ProviderFor(JavacAnnotationHandler.class)
public static class HandleJulLog implements JavacAnnotationHandler<lombok.extern.jul.Log> {
@Override public boolean handle(AnnotationValues<lombok.extern.jul.Log> annotation, JCAnnotation ast, JavacNode annotationNode) {
return processAnnotation(LoggingFramework.JUL, annotation, annotationNode);
}
@Override public boolean isResolutionBased() {
return false;
}
}
/**
* Handles the {@link lombok.extern.log4j.Log} annotation for javac.
*/
@ProviderFor(JavacAnnotationHandler.class)
public static class HandleLog4jLog implements JavacAnnotationHandler<lombok.extern.log4j.Log> {
@Override public boolean handle(AnnotationValues<lombok.extern.log4j.Log> annotation, JCAnnotation ast, JavacNode annotationNode) {
return processAnnotation(LoggingFramework.LOG4J, annotation, annotationNode);
}
@Override public boolean isResolutionBased() {
return false;
}
}
/**
* Handles the {@link lombok.extern.slf4j.Log} annotation for javac.
*/
@ProviderFor(JavacAnnotationHandler.class)
public static class HandleSlf4jLog implements JavacAnnotationHandler<lombok.extern.slf4j.Log> {
@Override public boolean handle(AnnotationValues<lombok.extern.slf4j.Log> annotation, JCAnnotation ast, JavacNode annotationNode) {
return processAnnotation(LoggingFramework.SLF4J, annotation, annotationNode);
}
@Override public boolean isResolutionBased() {
return false;
}
}
enum LoggingFramework {
// private static final org.apache.commons.logging.Log log = org.apache.commons.logging.LogFactory.getLog(TargetType.class);
COMMONS(lombok.extern.jul.Log.class, "org.apache.commons.logging.Log", "org.apache.commons.logging.LogFactory.getLog"),
// private static final java.util.logging.Logger log = java.util.logging.Logger.getLogger(TargetType.class.getName());
JUL(lombok.extern.jul.Log.class, "java.util.logging.Logger", "java.util.logging.Logger.getLogger") {
@Override public JCExpression createFactoryParameter(JavacNode typeNode, JCFieldAccess loggingType) {
TreeMaker maker = typeNode.getTreeMaker();
JCExpression method = maker.Select(loggingType, typeNode.toName("getName"));
return maker.Apply(List.<JCExpression>nil(), method, List.<JCExpression>nil());
}
},
// private static final org.apache.log4j.Logger log = org.apache.log4j.Logger.getLogger(TargetType.class);
LOG4J(lombok.extern.jul.Log.class, "org.apache.log4j.Logger", "org.apache.log4j.Logger.getLogger"),
// private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(TargetType.class);
SLF4J(lombok.extern.slf4j.Log.class, "org.slf4j.Logger", "org.slf4j.LoggerFactory.getLogger"),
;
private final Class<? extends Annotation> annotationClass;
private final String loggerTypeName;
private final String loggerFactoryName;
LoggingFramework(Class<? extends Annotation> annotationClass, String loggerTypeName, String loggerFactoryName) {
this.annotationClass = annotationClass;
this.loggerTypeName = loggerTypeName;
this.loggerFactoryName = loggerFactoryName;
}
final Class<? extends Annotation> getAnnotationClass() {
return annotationClass;
}
final String getLoggerTypeName() {
return loggerTypeName;
}
final String getLoggerFactoryMethodName() {
return loggerFactoryName;
}
JCExpression createFactoryParameter(JavacNode typeNode, JCFieldAccess loggingType) {
return loggingType;
}
}
}
|
