org.apache.tomcat.util.bcel.classfile.AnnotationEntry Maven / Gradle / Ivy
/*
* 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.tomcat.util.bcel.classfile;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import org.apache.tomcat.util.bcel.Constants;
/**
* represents one annotation in the annotation table
*
* @version $Id: AnnotationEntry
* @author D. Brosius
* @since 5.3
*/
public class AnnotationEntry implements Constants, Serializable {
private static final long serialVersionUID = 1L;
private int type_index;
private ConstantPool constant_pool;
private List element_value_pairs;
/**
* Factory method to create an AnnotionEntry from a DataInputStream
*
* @param file
* @param constant_pool
* @throws IOException
*/
public static AnnotationEntry read(DataInputStream file, ConstantPool constant_pool) throws IOException {
final AnnotationEntry annotationEntry = new AnnotationEntry(file.readUnsignedShort(), constant_pool);
final int num_element_value_pairs = (file.readUnsignedShort());
annotationEntry.element_value_pairs = new ArrayList();
for (int i = 0; i < num_element_value_pairs; i++) {
annotationEntry.element_value_pairs.add(new ElementValuePair(file.readUnsignedShort(), ElementValue.readElementValue(file, constant_pool),
constant_pool));
}
return annotationEntry;
}
public AnnotationEntry(int type_index, ConstantPool constant_pool) {
this.type_index = type_index;
this.constant_pool = constant_pool;
}
/**
* @return the annotation type name
*/
public String getAnnotationType() {
final ConstantUtf8 c = (ConstantUtf8) constant_pool.getConstant(type_index, CONSTANT_Utf8);
return c.getBytes();
}
/**
* @return the element value pairs in this annotation entry
*/
public ElementValuePair[] getElementValuePairs() {
// TOFO return List
return element_value_pairs.toArray(new ElementValuePair[element_value_pairs.size()]);
}
public void dump(DataOutputStream dos) throws IOException
{
dos.writeShort(type_index); // u2 index of type name in cpool
dos.writeShort(element_value_pairs.size()); // u2 element_value pair count
for (int i = 0 ; i