| /* |
| * 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.transitedEncoding; |
| |
| |
| 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.transitedEncoding.actions.StoreContents; |
| import org.apache.directory.shared.kerberos.codec.transitedEncoding.actions.StoreTrType; |
| import org.apache.directory.shared.kerberos.codec.transitedEncoding.actions.TransitedEncodingInit; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * This class implements the TransitedEncoding 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 TransitedEncodingGrammar extends AbstractGrammar<TransitedEncodingContainer> |
| { |
| /** The logger */ |
| static final Logger LOG = LoggerFactory.getLogger( TransitedEncodingGrammar.class ); |
| |
| /** A speedup for logger */ |
| static final boolean IS_DEBUG = LOG.isDebugEnabled(); |
| |
| /** The instance of grammar. TransitedEncodingGrammar is a singleton */ |
| private static Grammar<TransitedEncodingContainer> instance = new TransitedEncodingGrammar(); |
| |
| |
| /** |
| * Creates a new TransitedEncodingGrammar object. |
| */ |
| @SuppressWarnings("unchecked") |
| private TransitedEncodingGrammar() |
| { |
| setName( TransitedEncodingGrammar.class.getName() ); |
| |
| // Create the transitions table |
| super.transitions = new GrammarTransition[TransitedEncodingStatesEnum.LAST_TRANSITED_ENCODING_STATE.ordinal()][256]; |
| |
| // ============================================================================================ |
| // TransitedEncoding |
| // ============================================================================================ |
| // -------------------------------------------------------------------------------------------- |
| // Transition from TransitedEncoding init to TransitedEncoding SEQ |
| // -------------------------------------------------------------------------------------------- |
| // TransitedEncoding ::= SEQUENCE { |
| super.transitions[TransitedEncodingStatesEnum.START_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] = |
| new GrammarTransition<TransitedEncodingContainer>( |
| TransitedEncodingStatesEnum.START_STATE, |
| TransitedEncodingStatesEnum.TRANSITED_ENCODING_SEQ_STATE, |
| UniversalTag.SEQUENCE, |
| new TransitedEncodingInit() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from TransitedEncoding SEQ to tr-type tag |
| // -------------------------------------------------------------------------------------------- |
| // TransitedEncoding ::= SEQUENCE { |
| // tr-type [0] |
| super.transitions[TransitedEncodingStatesEnum.TRANSITED_ENCODING_SEQ_STATE.ordinal()][KerberosConstants.TRANSITED_ENCODING_TR_TYPE_TAG] = |
| new GrammarTransition<TransitedEncodingContainer>( |
| TransitedEncodingStatesEnum.TRANSITED_ENCODING_SEQ_STATE, |
| TransitedEncodingStatesEnum.TRANSITED_ENCODING_TR_TYPE_TAG_STATE, |
| KerberosConstants.TRANSITED_ENCODING_TR_TYPE_TAG, |
| new CheckNotNullLength<TransitedEncodingContainer>() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from tr-type tag to tr-type value |
| // -------------------------------------------------------------------------------------------- |
| // TransitedEncoding ::= SEQUENCE { |
| // tr-type [0] Int32 -- must be registered --, |
| super.transitions[TransitedEncodingStatesEnum.TRANSITED_ENCODING_TR_TYPE_TAG_STATE.ordinal()][UniversalTag.INTEGER |
| .getValue()] = |
| new GrammarTransition<TransitedEncodingContainer>( |
| TransitedEncodingStatesEnum.TRANSITED_ENCODING_TR_TYPE_TAG_STATE, |
| TransitedEncodingStatesEnum.TRANSITED_ENCODING_TR_TYPE_STATE, |
| UniversalTag.INTEGER, |
| new StoreTrType() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from tr-type value to contents tag |
| // -------------------------------------------------------------------------------------------- |
| // TransitedEncoding ::= SEQUENCE { |
| // ... |
| // contents [1] |
| super.transitions[TransitedEncodingStatesEnum.TRANSITED_ENCODING_TR_TYPE_STATE.ordinal()][KerberosConstants.TRANSITED_ENCODING_CONTENTS_TAG] = |
| new GrammarTransition<TransitedEncodingContainer>( |
| TransitedEncodingStatesEnum.TRANSITED_ENCODING_TR_TYPE_STATE, |
| TransitedEncodingStatesEnum.TRANSITED_ENCODING_CONTENTS_TAG_STATE, |
| KerberosConstants.TRANSITED_ENCODING_CONTENTS_TAG, |
| new CheckNotNullLength<TransitedEncodingContainer>() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from contents tag to contents value |
| // -------------------------------------------------------------------------------------------- |
| // TransitedEncoding ::= SEQUENCE { |
| // ... |
| // contents [1] OCTET STRING |
| super.transitions[TransitedEncodingStatesEnum.TRANSITED_ENCODING_CONTENTS_TAG_STATE.ordinal()][UniversalTag.OCTET_STRING |
| .getValue()] = |
| new GrammarTransition<TransitedEncodingContainer>( |
| TransitedEncodingStatesEnum.TRANSITED_ENCODING_CONTENTS_TAG_STATE, |
| TransitedEncodingStatesEnum.TRANSITED_ENCODING_CONTENTS_STATE, |
| UniversalTag.OCTET_STRING, |
| new StoreContents() ); |
| } |
| |
| |
| /** |
| * Get the instance of this grammar |
| * |
| * @return An instance on the TransitedEncoding Grammar |
| */ |
| public static Grammar<TransitedEncodingContainer> getInstance() |
| { |
| return instance; |
| } |
| } |