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 num_annotations;
031    private final Annotation[] annotations;
032
033    public RuntimeVisibleorInvisibleAnnotationsAttribute(final CPUTF8 name, final Annotation[] annotations) {
034        super(name);
035        this.num_annotations = annotations.length;
036        this.annotations = annotations;
037    }
038
039    @Override
040    protected int getLength() {
041        int length = 2;
042        for (int i = 0; i < num_annotations; i++) {
043            length += annotations[i].getLength();
044        }
045        return length;
046    }
047
048    @Override
049    protected void resolve(final ClassConstantPool pool) {
050        super.resolve(pool);
051        for (int i = 0; i < annotations.length; i++) {
052            annotations[i].resolve(pool);
053        }
054    }
055
056    @Override
057    protected void writeBody(final DataOutputStream dos) throws IOException {
058        final int size = dos.size();
059        dos.writeShort(num_annotations);
060        for (int i = 0; i < num_annotations; i++) {
061            annotations[i].writeBody(dos);
062        }
063        if (dos.size() - size != getLength()) {
064            throw new Error();
065        }
066    }
067
068    @Override
069    public String toString() {
070        return attributeName.underlyingString() + ": " + num_annotations + " annotations";
071    }
072
073    @Override
074    protected ClassFileEntry[] getNestedClassFileEntries() {
075        final List nested = new ArrayList();
076        nested.add(attributeName);
077        for (int i = 0; i < annotations.length; i++) {
078            nested.addAll(annotations[i].getClassFileEntries());
079        }
080        final ClassFileEntry[] nestedEntries = new ClassFileEntry[nested.size()];
081        for (int i = 0; i < nestedEntries.length; i++) {
082            nestedEntries[i] = (ClassFileEntry) nested.get(i);
083        }
084        return nestedEntries;
085    }
086}