    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}