001    /**
002     *
003     *  Licensed to the Apache Software Foundation (ASF) under one or more
004     *  contributor license agreements.  See the NOTICE file distributed with
005     *  this work for additional information regarding copyright ownership.
006     *  The ASF licenses this file to You under the Apache License, Version 2.0
007     *  (the "License"); you may not use this file except in compliance with
008     *  the License.  You may obtain a copy of the License at
009     *
010     *     http://www.apache.org/licenses/LICENSE-2.0
011     *
012     *  Unless required by applicable law or agreed to in writing, software
013     *  distributed under the License is distributed on an "AS IS" BASIS,
014     *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015     *  See the License for the specific language governing permissions and
016     *  limitations under the License.
017     */
018    
019    package org.apache.geronimo.util.asn1;
020    
021    import java.io.ByteArrayOutputStream;
022    import java.io.IOException;
023    import java.util.Enumeration;
024    
025    /**
026     * @deprecated use DERSequence.
027     */
028    public class DERConstructedSequence
029        extends ASN1Sequence
030    {
031        public void addObject(
032            DEREncodable obj)
033        {
034            super.addObject(obj);
035        }
036    
037        public int getSize()
038        {
039            return size();
040        }
041    
042        /*
043         * A note on the implementation:
044         * <p>
045         * As DER requires the constructed, definite-length model to
046         * be used for structured types, this varies slightly from the
047         * ASN.1 descriptions given. Rather than just outputing SEQUENCE,
048         * we also have to specify CONSTRUCTED, and the objects length.
049         */
050        void encode(
051            DEROutputStream out)
052            throws IOException
053        {
054            ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
055            DEROutputStream         dOut = new DEROutputStream(bOut);
056            Enumeration             e = this.getObjects();
057    
058            while (e.hasMoreElements())
059            {
060                Object    obj = e.nextElement();
061    
062                dOut.writeObject(obj);
063            }
064    
065            dOut.close();
066    
067            byte[]  bytes = bOut.toByteArray();
068    
069            out.writeEncoded(SEQUENCE | CONSTRUCTED, bytes);
070        }
071    }