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/*
* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.xml.internal.bind.v2.model.annotation;
import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.util.HashMap;
import java.util.Map;
/**
* {@link AnnotationReader} that uses {@code java.lang.reflect} to
* read annotations from class files.
*
* @author Kohsuke Kawaguchi (kk@kohsuke.org)
*/
public final class RuntimeInlineAnnotationReader extends AbstractInlineAnnotationReaderImpl<Type,Class,Field,Method>
implements RuntimeAnnotationReader {
public <A extends Annotation> A getFieldAnnotation(Class<A> annotation, Field field, Locatable srcPos) {
return LocatableAnnotation.create(field.getAnnotation(annotation),srcPos);
}
public boolean hasFieldAnnotation(Class<? extends Annotation> annotationType, Field field) {
return field.isAnnotationPresent(annotationType);
}
public boolean hasClassAnnotation(Class clazz, Class<? extends Annotation> annotationType) {
return clazz.isAnnotationPresent(annotationType);
}
public Annotation[] getAllFieldAnnotations(Field field, Locatable srcPos) {
Annotation[] r = field.getAnnotations();
for( int i=0; i<r.length; i++ ) {
r[i] = LocatableAnnotation.create(r[i],srcPos);
}
return r;
}
public <A extends Annotation> A getMethodAnnotation(Class<A> annotation, Method method, Locatable srcPos) {
return LocatableAnnotation.create(method.getAnnotation(annotation),srcPos);
}
public boolean hasMethodAnnotation(Class<? extends Annotation> annotation, Method method) {
return method.isAnnotationPresent(annotation);
}
public Annotation[] getAllMethodAnnotations(Method method, Locatable srcPos) {
Annotation[] r = method.getAnnotations();
for( int i=0; i<r.length; i++ ) {
r[i] = LocatableAnnotation.create(r[i],srcPos);
}
return r;
}
public <A extends Annotation> A getMethodParameterAnnotation(Class<A> annotation, Method method, int paramIndex, Locatable srcPos) {
Annotation[] pa = method.getParameterAnnotations()[paramIndex];
for( Annotation a : pa ) {
if(a.annotationType()==annotation)
return LocatableAnnotation.create((A)a,srcPos);
}
return null;
}
public <A extends Annotation> A getClassAnnotation(Class<A> a, Class clazz, Locatable srcPos) {
return LocatableAnnotation.create(((Class<?>)clazz).getAnnotation(a),srcPos);
}
/**
* Cache for package-level annotations.
*/
private final Map<Class<? extends Annotation>,Map<Package,Annotation>> packageCache =
new HashMap<Class<? extends Annotation>,Map<Package,Annotation>>();
public <A extends Annotation> A getPackageAnnotation(Class<A> a, Class clazz, Locatable srcPos) {
Package p = clazz.getPackage();
if(p==null) return null;
Map<Package,Annotation> cache = packageCache.get(a);
if(cache==null) {
cache = new HashMap<Package,Annotation>();
packageCache.put(a,cache);
}
if(cache.containsKey(p))
return (A)cache.get(p);
else {
A ann = LocatableAnnotation.create(p.getAnnotation(a),srcPos);
cache.put(p,ann);
return ann;
}
}
public Class getClassValue(Annotation a, String name) {
try {
return (Class)a.annotationType().getMethod(name).invoke(a);
} catch (IllegalAccessException e) {
// impossible
throw new IllegalAccessError(e.getMessage());
} catch (InvocationTargetException e) {
// impossible
throw new InternalError(Messages.CLASS_NOT_FOUND.format(a.annotationType(), e.getMessage()));
} catch (NoSuchMethodException e) {
throw new NoSuchMethodError(e.getMessage());
}
}
public Class[] getClassArrayValue(Annotation a, String name) {
try {
return (Class[])a.annotationType().getMethod(name).invoke(a);
} catch (IllegalAccessException e) {
// impossible
throw new IllegalAccessError(e.getMessage());
} catch (InvocationTargetException e) {
// impossible
throw new InternalError(e.getMessage());
} catch (NoSuchMethodException e) {
throw new NoSuchMethodError(e.getMessage());
}
}
protected String fullName(Method m) {
return m.getDeclaringClass().getName()+'#'+m.getName();
}
}
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