001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * https://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019package org.apache.commons.compress.harmony.unpack200.bytecode; 020 021import java.io.DataOutputStream; 022import java.io.IOException; 023import java.util.ArrayList; 024import java.util.List; 025 026/** 027 * Annotations class file attribute, either a RuntimeVisibleAnnotations attribute or a RuntimeInvisibleAnnotations attribute. 028 */ 029public class RuntimeVisibleorInvisibleAnnotationsAttribute extends AnnotationsAttribute { 030 031 private final Annotation[] annotations; 032 033 /** 034 * Constructs a new instance for an attribute name. 035 * 036 * @param name an attribute name. 037 * @param annotations Annotations. 038 */ 039 public RuntimeVisibleorInvisibleAnnotationsAttribute(final CPUTF8 name, final Annotation[] annotations) { 040 super(name); 041 this.annotations = annotations; 042 } 043 044 @Override 045 protected int getLength() { 046 int length = 2; 047 for (final Annotation annotation : annotations) { 048 length += annotation.getLength(); 049 } 050 return length; 051 } 052 053 @Override 054 protected ClassFileEntry[] getNestedClassFileEntries() { 055 final List<Object> nested = new ArrayList<>(); 056 nested.add(attributeName); 057 for (final Annotation annotation : annotations) { 058 nested.addAll(annotation.getClassFileEntries()); 059 } 060 return nested.toArray(NONE); 061 } 062 063 @Override 064 protected void resolve(final ClassConstantPool pool) { 065 super.resolve(pool); 066 for (final Annotation annotation : annotations) { 067 annotation.resolve(pool); 068 } 069 } 070 071 @Override 072 public String toString() { 073 return attributeName.underlyingString() + ": " + annotations.length + " annotations"; 074 } 075 076 @Override 077 protected void writeBody(final DataOutputStream dos) throws IOException { 078 final int size = dos.size(); 079 dos.writeShort(annotations.length); 080 for (final Annotation annotation : annotations) { 081 annotation.writeBody(dos); 082 } 083 if (dos.size() - size != getLength()) { 084 throw new Error(); 085 } 086 } 087}