001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.commons.compress.harmony.unpack200.bytecode; 018 019import java.io.DataOutputStream; 020import java.io.IOException; 021import java.util.ArrayList; 022import java.util.List; 023 024/** 025 * Annotations class file attribute, either a RuntimeVisibleAnnotations attribute or a RuntimeInvisibleAnnotations 026 * attribute. 027 */ 028public class RuntimeVisibleorInvisibleAnnotationsAttribute extends AnnotationsAttribute { 029 030 private final int numAnnotations; 031 private final Annotation[] annotations; 032 033 public RuntimeVisibleorInvisibleAnnotationsAttribute(final CPUTF8 name, final Annotation[] annotations) { 034 super(name); 035 this.numAnnotations = annotations.length; 036 this.annotations = annotations; 037 } 038 039 @Override 040 protected int getLength() { 041 int length = 2; 042 for (int i = 0; i < numAnnotations; i++) { 043 length += annotations[i].getLength(); 044 } 045 return length; 046 } 047 048 @Override 049 protected ClassFileEntry[] getNestedClassFileEntries() { 050 final List<Object> nested = new ArrayList<>(); 051 nested.add(attributeName); 052 for (final Annotation annotation : annotations) { 053 nested.addAll(annotation.getClassFileEntries()); 054 } 055 return nested.toArray(ClassFileEntry.NONE); 056 } 057 058 @Override 059 protected void resolve(final ClassConstantPool pool) { 060 super.resolve(pool); 061 for (final Annotation annotation : annotations) { 062 annotation.resolve(pool); 063 } 064 } 065 066 @Override 067 public String toString() { 068 return attributeName.underlyingString() + ": " + numAnnotations + " annotations"; 069 } 070 071 @Override 072 protected void writeBody(final DataOutputStream dos) throws IOException { 073 final int size = dos.size(); 074 dos.writeShort(numAnnotations); 075 for (int i = 0; i < numAnnotations; i++) { 076 annotations[i].writeBody(dos); 077 } 078 if (dos.size() - size != getLength()) { 079 throw new Error(); 080 } 081 } 082}