/*
* JBoss, Home of Professional Open Source.
*
* Copyright 2012 Red Hat, Inc.
*
* 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 org.jboss.classfilewriter.annotations;
import org.jboss.classfilewriter.attributes.Attribute;
import org.jboss.classfilewriter.constpool.ConstPool;
import org.jboss.classfilewriter.util.ByteArrayDataOutputStream;
import org.jboss.classfilewriter.util.LazySize;
import java.io.IOException;
import java.lang.annotation.Annotation;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* A parameter annotations attribute
*
* @author Stuart Douglas
*
*/
public class ParameterAnnotationsAttribute extends Attribute {
public static enum Type {
RUNTIME_VISIBLE("RuntimeVisibleParameterAnnotations"), RUNTIME_INVISIBLE("RuntimeInvisibleParameterAnnotations");
private Type(String tag) {
this.tag = tag;
}
private final String tag;
public String getTag() {
return tag;
}
}
private final Map<Integer, List<ClassAnnotation>> annotations;
private final int noParameters;
public ParameterAnnotationsAttribute(Type type, ConstPool constPool, int noParameters) {
super(type.getTag(), constPool);
this.annotations = new HashMap<Integer, List<ClassAnnotation>>();
this.noParameters = noParameters;
}
@Override
public void writeData(ByteArrayDataOutputStream stream) throws IOException {
LazySize sizeMarker = stream.writeSize();
stream.writeByte(noParameters);
for(int i = 0; i < noParameters; ++ i) {
if(!annotations.containsKey(i)) {
stream.writeShort(0);
} else {
List<ClassAnnotation> ans = annotations.get(i);
stream.writeShort(ans.size());
for (ClassAnnotation annotation : ans) {
annotation.write(stream);
}
}
}
sizeMarker.markEnd();
}
public void addAnnotation(int parameter, Annotation annotation) {
if (!annotations.containsKey(parameter)) {
annotations.put(parameter, new ArrayList<ClassAnnotation>());
}
annotations.get(parameter).add(AnnotationBuilder.createAnnotation(constPool, annotation));
}
public void addAnnotation(int parameter, ClassAnnotation annotation) {
if (!annotations.containsKey(parameter)) {
annotations.put(parameter, new ArrayList<ClassAnnotation>());
}
annotations.get(parameter).add(annotation);
}
}