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1   /*
2    *  Licensed to the Apache Software Foundation (ASF) under one
3    *  or more contributor license agreements.  See the NOTICE file
4    *  distributed with this work for additional information
5    *  regarding copyright ownership.  The ASF licenses this file
6    *  to you under the Apache License, Version 2.0 (the
7    *  "License"); you may not use this file except in compliance
8    *  with the License.  You may obtain a copy of the License at
9    *
10   *    http://www.apache.org/licenses/LICENSE-2.0
11   *
12   *  Unless required by applicable law or agreed to in writing,
13   *  software distributed under the License is distributed on an
14   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   *  KIND, either express or implied.  See the License for the
16   *  specific language governing permissions and limitations
17   *  under the License.
18   *
19   */
20  package org.apache.directory.shared.kerberos.codec.adKdcIssued;
21  
22  
23  import org.apache.directory.api.asn1.actions.CheckNotNullLength;
24  import org.apache.directory.api.asn1.ber.grammar.AbstractGrammar;
25  import org.apache.directory.api.asn1.ber.grammar.Grammar;
26  import org.apache.directory.api.asn1.ber.grammar.GrammarTransition;
27  import org.apache.directory.api.asn1.ber.tlv.UniversalTag;
28  import org.apache.directory.shared.kerberos.KerberosConstants;
29  import org.apache.directory.shared.kerberos.codec.adKdcIssued.actions.AdKdcIssuedInit;
30  import org.apache.directory.shared.kerberos.codec.adKdcIssued.actions.StoreChecksum;
31  import org.apache.directory.shared.kerberos.codec.adKdcIssued.actions.StoreElements;
32  import org.apache.directory.shared.kerberos.codec.adKdcIssued.actions.StoreIRealm;
33  import org.apache.directory.shared.kerberos.codec.adKdcIssued.actions.StoreISName;
34  import org.slf4j.Logger;
35  import org.slf4j.LoggerFactory;
36  
37  
38  /**
39   * This class implements the AdKdcIssued structure. All the actions are declared
40   * in this class. As it is a singleton, these declaration are only done once. If
41   * an action is to be added or modified, this is where the work is to be done !
42   *
43   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
44   */
45  public final class AdKDCIssuedGrammar extends AbstractGrammar<AdKdcIssuedContainer>
46  {
47      /** The logger */
48      static final Logger LOG = LoggerFactory.getLogger( AdKDCIssuedGrammar.class );
49  
50      /** A speedup for logger */
51      static final boolean IS_DEBUG = LOG.isDebugEnabled();
52  
53      /** The instance of grammar. AdKdcIssuedGrammar is a singleton */
54      private static Grammar<AdKdcIssuedContainer> instance = new AdKDCIssuedGrammar();
55  
56  
57      /**
58       * Creates a new AdKdcIssuedGrammar object.
59       */
60      @SuppressWarnings("unchecked")
61      private AdKDCIssuedGrammar()
62      {
63          setName( AdKDCIssuedGrammar.class.getName() );
64  
65          // Create the transitions table
66          super.transitions = new GrammarTransition[AdKDCIssuedStatesEnum.LAST_AD_KDC_ISSUED_STATE.ordinal()][256];
67  
68          // ============================================================================================
69          // AdKdcIssued
70          // ============================================================================================
71          // --------------------------------------------------------------------------------------------
72          // Transition from AdKdcIssued init to SEQ
73          // --------------------------------------------------------------------------------------------
74          // AD-KDCIssued            ::= SEQUENCE {
75          super.transitions[AdKDCIssuedStatesEnum.START_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] =
76              new GrammarTransition<AdKdcIssuedContainer>(
77                  AdKDCIssuedStatesEnum.START_STATE,
78                  AdKDCIssuedStatesEnum.AD_KDC_ISSUED_SEQ_STATE,
79                  UniversalTag.SEQUENCE,
80                  new AdKdcIssuedInit() );
81  
82          super.transitions[AdKDCIssuedStatesEnum.AD_KDC_ISSUED_SEQ_STATE.ordinal()][KerberosConstants.AD_KDC_ISSUED_AD_CHECKSUM_TAG] =
83              new GrammarTransition<AdKdcIssuedContainer>(
84                  AdKDCIssuedStatesEnum.AD_KDC_ISSUED_SEQ_STATE,
85                  AdKDCIssuedStatesEnum.AD_KDC_ISSUED_AD_CHECKSUM_TAG_STATE,
86                  KerberosConstants.AD_KDC_ISSUED_AD_CHECKSUM_TAG,
87                  new StoreChecksum() );
88  
89          super.transitions[AdKDCIssuedStatesEnum.AD_KDC_ISSUED_AD_CHECKSUM_TAG_STATE.ordinal()][KerberosConstants.AD_KDC_ISSUED_I_REALM_TAG] =
90              new GrammarTransition<AdKdcIssuedContainer>(
91                  AdKDCIssuedStatesEnum.AD_KDC_ISSUED_AD_CHECKSUM_TAG_STATE,
92                  AdKDCIssuedStatesEnum.AD_KDC_ISSUED_I_REALM_TAG_STATE,
93                  KerberosConstants.AD_KDC_ISSUED_I_REALM_TAG,
94                  new CheckNotNullLength<AdKdcIssuedContainer>() );
95  
96          super.transitions[AdKDCIssuedStatesEnum.AD_KDC_ISSUED_AD_CHECKSUM_TAG_STATE.ordinal()][KerberosConstants.AD_KDC_ISSUED_I_SNAME_TAG] =
97              new GrammarTransition<AdKdcIssuedContainer>(
98                  AdKDCIssuedStatesEnum.AD_KDC_ISSUED_AD_CHECKSUM_TAG_STATE,
99                  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 }