Thu, 31 Aug 2017 15:18:52 +0800
merge
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 */
26 package com.sun.xml.internal.bind.v2.model.annotation;
28 import java.lang.annotation.Annotation;
29 import java.lang.reflect.Field;
30 import java.lang.reflect.InvocationTargetException;
31 import java.lang.reflect.Method;
32 import java.lang.reflect.Type;
33 import java.util.HashMap;
34 import java.util.Map;
36 /**
37 * {@link AnnotationReader} that uses {@code java.lang.reflect} to
38 * read annotations from class files.
39 *
40 * @author Kohsuke Kawaguchi (kk@kohsuke.org)
41 */
42 public final class RuntimeInlineAnnotationReader extends AbstractInlineAnnotationReaderImpl<Type,Class,Field,Method>
43 implements RuntimeAnnotationReader {
45 public <A extends Annotation> A getFieldAnnotation(Class<A> annotation, Field field, Locatable srcPos) {
46 return LocatableAnnotation.create(field.getAnnotation(annotation),srcPos);
47 }
49 public boolean hasFieldAnnotation(Class<? extends Annotation> annotationType, Field field) {
50 return field.isAnnotationPresent(annotationType);
51 }
53 public boolean hasClassAnnotation(Class clazz, Class<? extends Annotation> annotationType) {
54 return clazz.isAnnotationPresent(annotationType);
55 }
57 public Annotation[] getAllFieldAnnotations(Field field, Locatable srcPos) {
58 Annotation[] r = field.getAnnotations();
59 for( int i=0; i<r.length; i++ ) {
60 r[i] = LocatableAnnotation.create(r[i],srcPos);
61 }
62 return r;
63 }
65 public <A extends Annotation> A getMethodAnnotation(Class<A> annotation, Method method, Locatable srcPos) {
66 return LocatableAnnotation.create(method.getAnnotation(annotation),srcPos);
67 }
69 public boolean hasMethodAnnotation(Class<? extends Annotation> annotation, Method method) {
70 return method.isAnnotationPresent(annotation);
71 }
73 public Annotation[] getAllMethodAnnotations(Method method, Locatable srcPos) {
74 Annotation[] r = method.getAnnotations();
75 for( int i=0; i<r.length; i++ ) {
76 r[i] = LocatableAnnotation.create(r[i],srcPos);
77 }
78 return r;
79 }
81 public <A extends Annotation> A getMethodParameterAnnotation(Class<A> annotation, Method method, int paramIndex, Locatable srcPos) {
82 Annotation[] pa = method.getParameterAnnotations()[paramIndex];
83 for( Annotation a : pa ) {
84 if(a.annotationType()==annotation)
85 return LocatableAnnotation.create((A)a,srcPos);
86 }
87 return null;
88 }
90 public <A extends Annotation> A getClassAnnotation(Class<A> a, Class clazz, Locatable srcPos) {
91 return LocatableAnnotation.create(((Class<?>)clazz).getAnnotation(a),srcPos);
92 }
95 /**
96 * Cache for package-level annotations.
97 */
98 private final Map<Class<? extends Annotation>,Map<Package,Annotation>> packageCache =
99 new HashMap<Class<? extends Annotation>,Map<Package,Annotation>>();
101 public <A extends Annotation> A getPackageAnnotation(Class<A> a, Class clazz, Locatable srcPos) {
102 Package p = clazz.getPackage();
103 if(p==null) return null;
105 Map<Package,Annotation> cache = packageCache.get(a);
106 if(cache==null) {
107 cache = new HashMap<Package,Annotation>();
108 packageCache.put(a,cache);
109 }
111 if(cache.containsKey(p))
112 return (A)cache.get(p);
113 else {
114 A ann = LocatableAnnotation.create(p.getAnnotation(a),srcPos);
115 cache.put(p,ann);
116 return ann;
117 }
118 }
120 public Class getClassValue(Annotation a, String name) {
121 try {
122 return (Class)a.annotationType().getMethod(name).invoke(a);
123 } catch (IllegalAccessException e) {
124 // impossible
125 throw new IllegalAccessError(e.getMessage());
126 } catch (InvocationTargetException e) {
127 // impossible
128 throw new InternalError(Messages.CLASS_NOT_FOUND.format(a.annotationType(), e.getMessage()));
129 } catch (NoSuchMethodException e) {
130 throw new NoSuchMethodError(e.getMessage());
131 }
132 }
134 public Class[] getClassArrayValue(Annotation a, String name) {
135 try {
136 return (Class[])a.annotationType().getMethod(name).invoke(a);
137 } catch (IllegalAccessException e) {
138 // impossible
139 throw new IllegalAccessError(e.getMessage());
140 } catch (InvocationTargetException e) {
141 // impossible
142 throw new InternalError(e.getMessage());
143 } catch (NoSuchMethodException e) {
144 throw new NoSuchMethodError(e.getMessage());
145 }
146 }
148 protected String fullName(Method m) {
149 return m.getDeclaringClass().getName()+'#'+m.getName();
150 }
151 }