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    
018    package org.apache.geronimo.util.asn1;
019    
020    import java.io.ByteArrayOutputStream;
021    import java.io.IOException;
022    import java.util.Enumeration;
023    
024    /**
025     *
026     * @deprecated use DERSet
027     */
028    public class DERConstructedSet
029        extends ASN1Set
030    {
031        public DERConstructedSet()
032        {
033        }
034    
035        /**
036         * @param obj - a single object that makes up the set.
037         */
038        public DERConstructedSet(
039            DEREncodable   obj)
040        {
041            this.addObject(obj);
042        }
043    
044        /**
045         * @param v - a vector of objects making up the set.
046         */
047        public DERConstructedSet(
048            DEREncodableVector   v)
049        {
050            for (int i = 0; i != v.size(); i++)
051            {
052                this.addObject(v.get(i));
053            }
054        }
055    
056        public void addObject(
057            DEREncodable    obj)
058        {
059            super.addObject(obj);
060        }
061    
062        public int getSize()
063        {
064            return size();
065        }
066    
067        /*
068         * A note on the implementation:
069         * <p>
070         * As DER requires the constructed, definite-length model to
071         * be used for structured types, this varies slightly from the
072         * ASN.1 descriptions given. Rather than just outputing SET,
073         * we also have to specify CONSTRUCTED, and the objects length.
074         */
075        void encode(
076            DEROutputStream out)
077            throws IOException
078        {
079            ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
080            DEROutputStream         dOut = new DEROutputStream(bOut);
081            Enumeration             e = this.getObjects();
082    
083            while (e.hasMoreElements())
084            {
085                Object    obj = e.nextElement();
086    
087                dOut.writeObject(obj);
088            }
089    
090            dOut.close();
091    
092            byte[]  bytes = bOut.toByteArray();
093    
094            out.writeEncoded(SET | CONSTRUCTED, bytes);
095        }
096    }