    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 *
    017 */
    018package org.apache.bcel.generic;
    019
    020import java.io.DataOutputStream;
    021import java.io.IOException;
    022
    023import org.apache.bcel.classfile.AnnotationElementValue;
    024import org.apache.bcel.classfile.ElementValue;
    025
    026/**
    027 * @since 6.0
    028 */
    029public class AnnotationElementValueGen extends ElementValueGen
    030{
    031    // For annotation element values, this is the annotation
    032    private final AnnotationEntryGen a;
    033
    034    public AnnotationElementValueGen(final AnnotationEntryGen a, final ConstantPoolGen cpool)
    035    {
    036        super(ANNOTATION, cpool);
    037        this.a = a;
    038    }
    039
    040    public AnnotationElementValueGen(final int type, final AnnotationEntryGen annotation,
    041            final ConstantPoolGen cpool)
    042    {
    043        super(type, cpool);
    044        if (type != ANNOTATION) {
    045            throw new IllegalArgumentException(
    046                    "Only element values of type annotation can be built with this ctor - type specified: " + type);
    047        }
    048        this.a = annotation;
    049    }
    050
    051    public AnnotationElementValueGen(final AnnotationElementValue value,
    052            final ConstantPoolGen cpool, final boolean copyPoolEntries)
    053    {
    054        super(ANNOTATION, cpool);
    055        a = new AnnotationEntryGen(value.getAnnotationEntry(), cpool, copyPoolEntries);
    056    }
    057
    058    @Override
    059    public void dump(final DataOutputStream dos) throws IOException
    060    {
    061        dos.writeByte(super.getElementValueType()); // u1 type of value (ANNOTATION == '@')
    062        a.dump(dos);
    063    }
    064
    065    @Override
    066    public String stringifyValue()
    067    {
    068        throw new UnsupportedOperationException("Not implemented yet");
    069    }
    070
    071    /**
    072     * Return immutable variant of this AnnotationElementValueGen
    073     */
    074    @Override
    075    public ElementValue getElementValue()
    076    {
    077        return new AnnotationElementValue(super.getElementValueType(),
    078                a.getAnnotation(),
    079                getConstantPool().getConstantPool());
    080    }
    081
    082    public AnnotationEntryGen getAnnotation()
    083    {
    084        return a;
    085    }
    086}