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     *    http://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     *  
019     */
020    package org.apache.directory.server.kerberos.shared.io.encoder;
021    
022    
023    import org.apache.directory.server.kerberos.shared.messages.value.AuthorizationData;
024    import org.apache.directory.server.kerberos.shared.messages.value.AuthorizationDataEntry;
025    import org.apache.directory.shared.asn1.der.DERInteger;
026    import org.apache.directory.shared.asn1.der.DEROctetString;
027    import org.apache.directory.shared.asn1.der.DERSequence;
028    import org.apache.directory.shared.asn1.der.DERTaggedObject;
029    
030    
031    /**
032     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
033     * @version $Rev: 587531 $, $Date: 2007-10-23 16:59:10 +0200 (Tue, 23 Oct 2007) $
034     */
035    public class AuthorizationDataEncoder
036    {
037        /**
038         * AuthorizationData ::=   SEQUENCE OF SEQUENCE {
039         *     ad-type[0]               INTEGER,
040         *     ad-data[1]               OCTET STRING
041         * }
042         */
043        protected static DERSequence encode( AuthorizationData data )
044        {
045            DERSequence outerSequence = new DERSequence();
046    
047            for ( AuthorizationDataEntry entry: data.getEntries() )
048            {
049                DERSequence sequence = new DERSequence();
050                sequence.add( new DERTaggedObject( 0, DERInteger.valueOf( entry.getAdType().getOrdinal() ) ) );
051                sequence.add( new DERTaggedObject( 1, new DEROctetString( entry.getAdData() ) ) );
052                outerSequence.add( sequence );
053            }
054    
055            return outerSequence;
056        }
057    }