| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.directory.shared.kerberos.codec.etypeInfoEntry; |
| |
| |
| import org.apache.directory.api.asn1.actions.CheckNotNullLength; |
| import org.apache.directory.api.asn1.ber.grammar.AbstractGrammar; |
| import org.apache.directory.api.asn1.ber.grammar.Grammar; |
| import org.apache.directory.api.asn1.ber.grammar.GrammarTransition; |
| import org.apache.directory.api.asn1.ber.tlv.UniversalTag; |
| import org.apache.directory.shared.kerberos.KerberosConstants; |
| import org.apache.directory.shared.kerberos.codec.etypeInfoEntry.actions.ETypeInfoEntryInit; |
| import org.apache.directory.shared.kerberos.codec.etypeInfoEntry.actions.StoreEType; |
| import org.apache.directory.shared.kerberos.codec.etypeInfoEntry.actions.StoreSalt; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * This class implements the ETYPE-INFO-ENTRY structure. All the actions are declared |
| * in this class. As it is a singleton, these declaration are only done once. If |
| * an action is to be added or modified, this is where the work is to be done ! |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public final class ETypeInfoEntryGrammar extends AbstractGrammar<ETypeInfoEntryContainer> |
| { |
| /** The logger */ |
| static final Logger LOG = LoggerFactory.getLogger( ETypeInfoEntryGrammar.class ); |
| |
| /** A speedup for logger */ |
| static final boolean IS_DEBUG = LOG.isDebugEnabled(); |
| |
| /** The instance of grammar. ETypeInfoEntryGrammar is a singleton */ |
| private static Grammar<ETypeInfoEntryContainer> instance = new ETypeInfoEntryGrammar(); |
| |
| |
| /** |
| * Creates a new ETypeInfoEntryGrammar object. |
| */ |
| @SuppressWarnings("unchecked") |
| private ETypeInfoEntryGrammar() |
| { |
| setName( ETypeInfoEntryGrammar.class.getName() ); |
| |
| // Create the transitions table |
| super.transitions = new GrammarTransition[ETypeInfoEntryStatesEnum.LAST_ETYPE_INFO_ENTRY_STATE.ordinal()][256]; |
| |
| // ============================================================================================ |
| // ETYPE-INFO-ENTRY |
| // ============================================================================================ |
| // -------------------------------------------------------------------------------------------- |
| // Transition from ETYPE-INFO-ENTRY init to ETYPE-INFO-ENTRY SEQ |
| // -------------------------------------------------------------------------------------------- |
| // ETYPE-INFO-ENTRY ::= SEQUENCE { |
| super.transitions[ETypeInfoEntryStatesEnum.START_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] = |
| new GrammarTransition<ETypeInfoEntryContainer>( |
| ETypeInfoEntryStatesEnum.START_STATE, |
| ETypeInfoEntryStatesEnum.ETYPE_INFO_ENTRY_SEQ_STATE, |
| UniversalTag.SEQUENCE, |
| new ETypeInfoEntryInit() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from ETYPE-INFO-ENTRY SEQ to etype tag |
| // -------------------------------------------------------------------------------------------- |
| // ETYPE-INFO-ENTRY ::= SEQUENCE { |
| // etype [0] |
| super.transitions[ETypeInfoEntryStatesEnum.ETYPE_INFO_ENTRY_SEQ_STATE.ordinal()][KerberosConstants.TRANSITED_ENCODING_TR_TYPE_TAG] = |
| new GrammarTransition<ETypeInfoEntryContainer>( |
| ETypeInfoEntryStatesEnum.ETYPE_INFO_ENTRY_SEQ_STATE, |
| ETypeInfoEntryStatesEnum.ETYPE_INFO_ENTRY_ETYPE_TAG_STATE, |
| KerberosConstants.TRANSITED_ENCODING_TR_TYPE_TAG, |
| new CheckNotNullLength<ETypeInfoEntryContainer>() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from etype tag to etype value |
| // -------------------------------------------------------------------------------------------- |
| // ETYPE-INFO-ENTRY ::= SEQUENCE { |
| // etype [0] Int32, |
| super.transitions[ETypeInfoEntryStatesEnum.ETYPE_INFO_ENTRY_ETYPE_TAG_STATE.ordinal()][UniversalTag.INTEGER |
| .getValue()] = |
| new GrammarTransition<ETypeInfoEntryContainer>( |
| ETypeInfoEntryStatesEnum.ETYPE_INFO_ENTRY_ETYPE_TAG_STATE, |
| ETypeInfoEntryStatesEnum.ETYPE_INFO_ENTRY_ETYPE_STATE, |
| UniversalTag.INTEGER, |
| new StoreEType() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from etype value to salt tag |
| // -------------------------------------------------------------------------------------------- |
| // ETYPE-INFO-ENTRY ::= SEQUENCE { |
| // ... |
| // salt [1] |
| super.transitions[ETypeInfoEntryStatesEnum.ETYPE_INFO_ENTRY_ETYPE_STATE.ordinal()][KerberosConstants.TRANSITED_ENCODING_CONTENTS_TAG] = |
| new GrammarTransition<ETypeInfoEntryContainer>( |
| ETypeInfoEntryStatesEnum.ETYPE_INFO_ENTRY_ETYPE_STATE, |
| ETypeInfoEntryStatesEnum.ETYPE_INFO_ENTRY_SALT_TAG_STATE, |
| KerberosConstants.TRANSITED_ENCODING_CONTENTS_TAG, |
| new CheckNotNullLength<ETypeInfoEntryContainer>() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from salt tag to salt value |
| // -------------------------------------------------------------------------------------------- |
| // ETYPE-INFO-ENTRY ::= SEQUENCE { |
| // ... |
| // salt [1] OCTET STRING OPTIONAL |
| super.transitions[ETypeInfoEntryStatesEnum.ETYPE_INFO_ENTRY_SALT_TAG_STATE.ordinal()][UniversalTag.OCTET_STRING |
| .getValue()] = |
| new GrammarTransition<ETypeInfoEntryContainer>( |
| ETypeInfoEntryStatesEnum.ETYPE_INFO_ENTRY_SALT_TAG_STATE, |
| ETypeInfoEntryStatesEnum.ETYPE_INFO_ENTRY_SALT_STATE, |
| UniversalTag.OCTET_STRING, |
| new StoreSalt() ); |
| } |
| |
| |
| /** |
| * Get the instance of this grammar |
| * |
| * @return An instance on the ETYPE-INFO-ENTRY Grammar |
| */ |
| public static Grammar<ETypeInfoEntryContainer> getInstance() |
| { |
| return instance; |
| } |
| } |