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 */
020package org.apache.directory.shared.kerberos.codec.kdcReqBody.actions;
021
022
023import org.apache.directory.api.asn1.DecoderException;
024import org.apache.directory.api.asn1.ber.grammar.GrammarAction;
025import org.apache.directory.api.asn1.ber.tlv.TLV;
026import org.apache.directory.shared.kerberos.codec.kdcReqBody.KdcReqBodyContainer;
027
028
029/**
030 * The action used to store the KDC-REQ-BODY EType sequence.
031 *
032 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
033 */
034public class ETypeSequence extends GrammarAction<KdcReqBodyContainer>
035{
036    /**
037     * Instantiates a new ETypeSequence action.
038     */
039    public ETypeSequence()
040    {
041        super( "KDC-REQ-BODY EType sequence" );
042    }
043
044
045    /**
046     * {@inheritDoc}
047     */
048    public void action( KdcReqBodyContainer kdcReqBodyContainer )
049    {
050        TLV tlv = kdcReqBodyContainer.getCurrentTLV();
051
052        // The Length can be null, in this case, we can potentially exit from this grammar
053        if ( tlv.getLength() == 0 )
054        {
055            kdcReqBodyContainer.setGrammarEndAllowed( true );
056        }
057    }
058}