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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.bcel.classfile;
import java.io.DataInput;
import java.io.DataOutputStream;
import java.io.IOException;
/**
* base class for annotations
*
* @version $Id: Annotations
* @since 6.0
*/
public abstract class Annotations extends Attribute {
private AnnotationEntry[] annotation_table;
private final boolean isRuntimeVisible;
/**
* @param annotation_type the subclass type of the annotation
* @param name_index Index pointing to the name <em>Code</em>
* @param length Content length in bytes
* @param input Input stream
* @param constant_pool Array of constants
*/
Annotations(final byte annotation_type, final int name_index, final int length, final DataInput input,
final ConstantPool constant_pool, final boolean isRuntimeVisible) throws IOException {
this(annotation_type, name_index, length, (AnnotationEntry[]) null, constant_pool, isRuntimeVisible);
final int annotation_table_length = input.readUnsignedShort();
annotation_table = new AnnotationEntry[annotation_table_length];
for (int i = 0; i < annotation_table_length; i++) {
annotation_table[i] = AnnotationEntry.read(input, constant_pool, isRuntimeVisible);
}
}
/**
* @param annotation_type the subclass type of the annotation
* @param name_index Index pointing to the name <em>Code</em>
* @param length Content length in bytes
* @param annotation_table the actual annotations
* @param constant_pool Array of constants
*/
public Annotations(final byte annotation_type, final int name_index, final int length, final AnnotationEntry[] annotation_table,
final ConstantPool constant_pool, final boolean isRuntimeVisible) {
super(annotation_type, name_index, length, constant_pool);
this.annotation_table = annotation_table;
this.isRuntimeVisible = isRuntimeVisible;
}
/**
* Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class.
* I.e., the hierarchy of methods, fields, attributes, etc. spawns a tree of objects.
*
* @param v Visitor object
*/
@Override
public void accept(final Visitor v) {
v.visitAnnotation(this);
}
/**
* @param annotation_table the entries to set in this annotation
*/
public final void setAnnotationTable(final AnnotationEntry[] annotation_table) {
this.annotation_table = annotation_table;
}
/**
* returns the array of annotation entries in this annotation
*/
public AnnotationEntry[] getAnnotationEntries() {
return annotation_table;
}
/**
* @return the number of annotation entries in this annotation
*/
public final int getNumAnnotations() {
if (annotation_table == null) {
return 0;
}
return annotation_table.length;
}
public boolean isRuntimeVisible() {
return isRuntimeVisible;
}
protected void writeAnnotations(final DataOutputStream dos) throws IOException {
if (annotation_table == null) {
return;
}
dos.writeShort(annotation_table.length);
for (final AnnotationEntry element : annotation_table) {
element.dump(dos);
}
}
}
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