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.adKdcIssued;
021
022
023import org.apache.directory.api.asn1.actions.CheckNotNullLength;
024import org.apache.directory.api.asn1.ber.grammar.AbstractGrammar;
025import org.apache.directory.api.asn1.ber.grammar.Grammar;
026import org.apache.directory.api.asn1.ber.grammar.GrammarTransition;
027import org.apache.directory.api.asn1.ber.tlv.UniversalTag;
028import org.apache.directory.shared.kerberos.KerberosConstants;
029import org.apache.directory.shared.kerberos.codec.adKdcIssued.actions.AdKdcIssuedInit;
030import org.apache.directory.shared.kerberos.codec.adKdcIssued.actions.StoreChecksum;
031import org.apache.directory.shared.kerberos.codec.adKdcIssued.actions.StoreElements;
032import org.apache.directory.shared.kerberos.codec.adKdcIssued.actions.StoreIRealm;
033import org.apache.directory.shared.kerberos.codec.adKdcIssued.actions.StoreISName;
034import org.slf4j.Logger;
035import org.slf4j.LoggerFactory;
036
037
038/**
039 * This class implements the AdKdcIssued structure. All the actions are declared
040 * in this class. As it is a singleton, these declaration are only done once. If
041 * an action is to be added or modified, this is where the work is to be done !
042 *
043 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
044 */
045public final class AdKDCIssuedGrammar extends AbstractGrammar<AdKdcIssuedContainer>
046{
047    /** The logger */
048    static final Logger LOG = LoggerFactory.getLogger( AdKDCIssuedGrammar.class );
049
050    /** A speedup for logger */
051    static final boolean IS_DEBUG = LOG.isDebugEnabled();
052
053    /** The instance of grammar. AdKdcIssuedGrammar is a singleton */
054    private static Grammar<AdKdcIssuedContainer> instance = new AdKDCIssuedGrammar();
055
056
057    /**
058     * Creates a new AdKdcIssuedGrammar object.
059     */
060    @SuppressWarnings("unchecked")
061    private AdKDCIssuedGrammar()
062    {
063        setName( AdKDCIssuedGrammar.class.getName() );
064
065        // Create the transitions table
066        super.transitions = new GrammarTransition[AdKDCIssuedStatesEnum.LAST_AD_KDC_ISSUED_STATE.ordinal()][256];
067
068        // ============================================================================================
069        // AdKdcIssued
070        // ============================================================================================
071        // --------------------------------------------------------------------------------------------
072        // Transition from AdKdcIssued init to SEQ
073        // --------------------------------------------------------------------------------------------
074        // AD-KDCIssued            ::= SEQUENCE {
075        super.transitions[AdKDCIssuedStatesEnum.START_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] =
076            new GrammarTransition<AdKdcIssuedContainer>(
077                AdKDCIssuedStatesEnum.START_STATE,
078                AdKDCIssuedStatesEnum.AD_KDC_ISSUED_SEQ_STATE,
079                UniversalTag.SEQUENCE,
080                new AdKdcIssuedInit() );
081
082        super.transitions[AdKDCIssuedStatesEnum.AD_KDC_ISSUED_SEQ_STATE.ordinal()][KerberosConstants.AD_KDC_ISSUED_AD_CHECKSUM_TAG] =
083            new GrammarTransition<AdKdcIssuedContainer>(
084                AdKDCIssuedStatesEnum.AD_KDC_ISSUED_SEQ_STATE,
085                AdKDCIssuedStatesEnum.AD_KDC_ISSUED_AD_CHECKSUM_TAG_STATE,
086                KerberosConstants.AD_KDC_ISSUED_AD_CHECKSUM_TAG,
087                new StoreChecksum() );
088
089        super.transitions[AdKDCIssuedStatesEnum.AD_KDC_ISSUED_AD_CHECKSUM_TAG_STATE.ordinal()][KerberosConstants.AD_KDC_ISSUED_I_REALM_TAG] =
090            new GrammarTransition<AdKdcIssuedContainer>(
091                AdKDCIssuedStatesEnum.AD_KDC_ISSUED_AD_CHECKSUM_TAG_STATE,
092                AdKDCIssuedStatesEnum.AD_KDC_ISSUED_I_REALM_TAG_STATE,
093                KerberosConstants.AD_KDC_ISSUED_I_REALM_TAG,
094                new CheckNotNullLength<AdKdcIssuedContainer>() );
095
096        super.transitions[AdKDCIssuedStatesEnum.AD_KDC_ISSUED_AD_CHECKSUM_TAG_STATE.ordinal()][KerberosConstants.AD_KDC_ISSUED_I_SNAME_TAG] =
097            new GrammarTransition<AdKdcIssuedContainer>(
098                AdKDCIssuedStatesEnum.AD_KDC_ISSUED_AD_CHECKSUM_TAG_STATE,
099                AdKDCIssuedStatesEnum.AD_KDC_ISSUED_I_SNAME_TAG_STATE,
100                KerberosConstants.AD_KDC_ISSUED_I_SNAME_TAG,
101                new StoreISName() );
102
103        super.transitions[AdKDCIssuedStatesEnum.AD_KDC_ISSUED_AD_CHECKSUM_TAG_STATE.ordinal()][KerberosConstants.AD_KDC_ISSUED_ELEMENTS_TAG] =
104            new GrammarTransition<AdKdcIssuedContainer>(
105                AdKDCIssuedStatesEnum.AD_KDC_ISSUED_AD_CHECKSUM_TAG_STATE,
106                AdKDCIssuedStatesEnum.AD_KDC_ISSUED_ELEMENTS_TAG_STATE,
107                KerberosConstants.AD_KDC_ISSUED_ELEMENTS_TAG,
108                new StoreElements() );
109
110        super.transitions[AdKDCIssuedStatesEnum.AD_KDC_ISSUED_I_REALM_TAG_STATE.ordinal()][UniversalTag.GENERAL_STRING
111            .getValue()] =
112            new GrammarTransition<AdKdcIssuedContainer>(
113                AdKDCIssuedStatesEnum.AD_KDC_ISSUED_I_REALM_TAG_STATE,
114                AdKDCIssuedStatesEnum.AD_KDC_ISSUED_I_REALM_STATE,
115                UniversalTag.GENERAL_STRING,
116                new StoreIRealm() );
117
118        super.transitions[AdKDCIssuedStatesEnum.AD_KDC_ISSUED_I_REALM_STATE.ordinal()][KerberosConstants.AD_KDC_ISSUED_I_SNAME_TAG] =
119            new GrammarTransition<AdKdcIssuedContainer>(
120                AdKDCIssuedStatesEnum.AD_KDC_ISSUED_I_REALM_STATE,
121                AdKDCIssuedStatesEnum.AD_KDC_ISSUED_I_SNAME_TAG_STATE,
122                KerberosConstants.AD_KDC_ISSUED_I_SNAME_TAG,
123                new StoreISName() );
124
125        super.transitions[AdKDCIssuedStatesEnum.AD_KDC_ISSUED_I_REALM_STATE.ordinal()][KerberosConstants.AD_KDC_ISSUED_ELEMENTS_TAG] =
126            new GrammarTransition<AdKdcIssuedContainer>(
127                AdKDCIssuedStatesEnum.AD_KDC_ISSUED_I_REALM_STATE,
128                AdKDCIssuedStatesEnum.AD_KDC_ISSUED_ELEMENTS_TAG_STATE,
129                KerberosConstants.AD_KDC_ISSUED_ELEMENTS_TAG,
130                new StoreElements() );
131
132        super.transitions[AdKDCIssuedStatesEnum.AD_KDC_ISSUED_I_SNAME_TAG_STATE.ordinal()][KerberosConstants.AD_KDC_ISSUED_ELEMENTS_TAG] =
133            new GrammarTransition<AdKdcIssuedContainer>(
134                AdKDCIssuedStatesEnum.AD_KDC_ISSUED_I_SNAME_TAG_STATE,
135                AdKDCIssuedStatesEnum.AD_KDC_ISSUED_ELEMENTS_TAG_STATE,
136                KerberosConstants.AD_KDC_ISSUED_ELEMENTS_TAG,
137                new StoreElements() );
138    }
139
140
141    /**
142     * Get the instance of this grammar
143     *
144     * @return An instance on the AdKdcIssued Grammar
145     */
146    public static Grammar<AdKdcIssuedContainer> getInstance()
147    {
148        return instance;
149    }
150}