net.bytebuddy.implementation.attribute.FieldAttributeAppender Maven / Gradle / Ivy
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Easy Redis Java client and Real-Time Data Platform. Valkey compatible. Sync/Async/RxJava3/Reactive API. Client side caching. Over 50 Redis based Java objects and services: JCache API, Apache Tomcat, Hibernate, Spring, Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Scheduler, RPC
/*
* Copyright 2014 - Present Rafael Winterhalter
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.bytebuddy.implementation.attribute;
import net.bytebuddy.build.HashCodeAndEqualsPlugin;
import net.bytebuddy.description.annotation.AnnotationDescription;
import net.bytebuddy.description.field.FieldDescription;
import net.bytebuddy.description.type.TypeDescription;
import net.bytebuddy.jar.asm.FieldVisitor;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
/**
* An appender that writes attributes or annotations to a given ASM {@link net.bytebuddy.jar.asm.FieldVisitor}.
*/
public interface FieldAttributeAppender {
/**
* Applies this attribute appender to a given field visitor.
*
* @param fieldVisitor The field visitor to which the attributes that are represented by this attribute appender are written to.
* @param fieldDescription The description of the field to which the field visitor belongs to.
* @param annotationValueFilter The annotation value filter to apply when writing annotations.
*/
void apply(FieldVisitor fieldVisitor, FieldDescription fieldDescription, AnnotationValueFilter annotationValueFilter);
/**
* A field attribute appender that does not append any attributes.
*/
enum NoOp implements FieldAttributeAppender, Factory {
/**
* The singleton instance.
*/
INSTANCE;
/**
* {@inheritDoc}
*/
public FieldAttributeAppender make(TypeDescription typeDescription) {
return this;
}
/**
* {@inheritDoc}
*/
public void apply(FieldVisitor fieldVisitor, FieldDescription fieldDescription, AnnotationValueFilter annotationValueFilter) {
/* do nothing */
}
}
/**
* A factory that creates field attribute appenders for a given type.
*/
interface Factory {
/**
* Returns a field attribute appender that is applicable for a given type description.
*
* @param typeDescription The type for which a field attribute appender is to be applied for.
* @return The field attribute appender which should be applied for the given type.
*/
FieldAttributeAppender make(TypeDescription typeDescription);
/**
* A field attribute appender factory that combines several field attribute appender factories to be
* represented as a single factory.
*/
@HashCodeAndEqualsPlugin.Enhance
class Compound implements Factory {
/**
* The factories that this compound factory represents in their application order.
*/
private final List factories;
/**
* Creates a new compound field attribute appender factory.
*
* @param factory The factories to represent in the order of their application.
*/
public Compound(Factory... factory) {
this(Arrays.asList(factory));
}
/**
* Creates a new compound field attribute appender factory.
*
* @param factories The factories to represent in the order of their application.
*/
public Compound(List factories) {
this.factories = new ArrayList();
for (Factory factory : factories) {
if (factory instanceof Compound) {
this.factories.addAll(((Compound) factory).factories);
} else if (!(factory instanceof NoOp)) {
this.factories.add(factory);
}
}
}
/**
* {@inheritDoc}
*/
public FieldAttributeAppender make(TypeDescription typeDescription) {
List fieldAttributeAppenders = new ArrayList(factories.size());
for (Factory factory : factories) {
fieldAttributeAppenders.add(factory.make(typeDescription));
}
return new FieldAttributeAppender.Compound(fieldAttributeAppenders);
}
}
}
/**
* An attribute appender that writes all annotations that are declared on a field.
*/
enum ForInstrumentedField implements FieldAttributeAppender, Factory {
/**
* The singleton instance.
*/
INSTANCE;
/**
* {@inheritDoc}
*/
public void apply(FieldVisitor fieldVisitor, FieldDescription fieldDescription, AnnotationValueFilter annotationValueFilter) {
AnnotationAppender annotationAppender = new AnnotationAppender.Default(new AnnotationAppender.Target.OnField(fieldVisitor));
annotationAppender = fieldDescription.getType().accept(AnnotationAppender.ForTypeAnnotations.ofFieldType(annotationAppender, annotationValueFilter));
for (AnnotationDescription annotation : fieldDescription.getDeclaredAnnotations()) {
annotationAppender = annotationAppender.append(annotation, annotationValueFilter);
}
}
/**
* {@inheritDoc}
*/
public FieldAttributeAppender make(TypeDescription typeDescription) {
return this;
}
}
/**
* Appends an annotation to a field. The visibility of the annotation is determined by the annotation type's
* {@link java.lang.annotation.RetentionPolicy} annotation.
*/
@HashCodeAndEqualsPlugin.Enhance
class Explicit implements FieldAttributeAppender, Factory {
/**
* The annotations that this appender appends.
*/
private final List annotations;
/**
* Creates a new annotation attribute appender for explicit annotation values. All values, including default values, are copied.
*
* @param annotations The annotations to be appended to the field.
*/
public Explicit(List annotations) {
this.annotations = annotations;
}
/**
* {@inheritDoc}
*/
public void apply(FieldVisitor fieldVisitor, FieldDescription fieldDescription, AnnotationValueFilter annotationValueFilter) {
AnnotationAppender appender = new AnnotationAppender.Default(new AnnotationAppender.Target.OnField(fieldVisitor));
for (AnnotationDescription annotation : annotations) {
appender = appender.append(annotation, annotationValueFilter);
}
}
/**
* {@inheritDoc}
*/
public FieldAttributeAppender make(TypeDescription typeDescription) {
return this;
}
}
/**
* A field attribute appender that combines several method attribute appenders to be represented as a single
* field attribute appender.
*/
@HashCodeAndEqualsPlugin.Enhance
class Compound implements FieldAttributeAppender {
/**
* The field attribute appenders this appender represents in their application order.
*/
private final List fieldAttributeAppenders;
/**
* Creates a new compound field attribute appender.
*
* @param fieldAttributeAppender The field attribute appenders that are to be combined by this compound appender
* in the order of their application.
*/
public Compound(FieldAttributeAppender... fieldAttributeAppender) {
this(Arrays.asList(fieldAttributeAppender));
}
/**
* Creates a new compound field attribute appender.
*
* @param fieldAttributeAppenders The field attribute appenders that are to be combined by this compound appender
* in the order of their application.
*/
public Compound(List fieldAttributeAppenders) {
this.fieldAttributeAppenders = new ArrayList();
for (FieldAttributeAppender fieldAttributeAppender : fieldAttributeAppenders) {
if (fieldAttributeAppender instanceof Compound) {
this.fieldAttributeAppenders.addAll(((Compound) fieldAttributeAppender).fieldAttributeAppenders);
} else if (!(fieldAttributeAppender instanceof NoOp)) {
this.fieldAttributeAppenders.add(fieldAttributeAppender);
}
}
}
/**
* {@inheritDoc}
*/
public void apply(FieldVisitor fieldVisitor, FieldDescription fieldDescription, AnnotationValueFilter annotationValueFilter) {
for (FieldAttributeAppender fieldAttributeAppender : fieldAttributeAppenders) {
fieldAttributeAppender.apply(fieldVisitor, fieldDescription, annotationValueFilter);
}
}
}
}
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