| /* |
| * 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.hostAddress; |
| |
| |
| 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.hostAddress.actions.HostAddressInit; |
| import org.apache.directory.shared.kerberos.codec.hostAddress.actions.StoreAddrType; |
| import org.apache.directory.shared.kerberos.codec.hostAddress.actions.StoreAddress; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * This class implements the HostAddress 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 HostAddressGrammar extends AbstractGrammar<HostAddressContainer> |
| { |
| /** The logger */ |
| static final Logger LOG = LoggerFactory.getLogger( HostAddressGrammar.class ); |
| |
| /** A speedup for logger */ |
| static final boolean IS_DEBUG = LOG.isDebugEnabled(); |
| |
| /** The instance of grammar. HostAddressGrammar is a singleton */ |
| private static Grammar<HostAddressContainer> instance = new HostAddressGrammar(); |
| |
| |
| /** |
| * Creates a new HostAddressGrammar object. |
| */ |
| @SuppressWarnings("unchecked") |
| private HostAddressGrammar() |
| { |
| setName( HostAddressGrammar.class.getName() ); |
| |
| // Create the transitions table |
| super.transitions = new GrammarTransition[HostAddressStatesEnum.LAST_HOST_ADDRESS_STATE.ordinal()][256]; |
| |
| // ============================================================================================ |
| // HostAddress |
| // ============================================================================================ |
| // -------------------------------------------------------------------------------------------- |
| // Transition from HostAddress init to HostAddress SEQ |
| // -------------------------------------------------------------------------------------------- |
| // HostAddress ::= SEQUENCE |
| super.transitions[HostAddressStatesEnum.START_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] = |
| new GrammarTransition<HostAddressContainer>( |
| HostAddressStatesEnum.START_STATE, |
| HostAddressStatesEnum.HOST_ADDRESS_SEQ_STATE, |
| UniversalTag.SEQUENCE, |
| new HostAddressInit() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from HostAddress SEQ to addr-type tag |
| // -------------------------------------------------------------------------------------------- |
| // HostAddress ::= SEQUENCE |
| // addr-type [0] |
| super.transitions[HostAddressStatesEnum.HOST_ADDRESS_SEQ_STATE.ordinal()][KerberosConstants.HOST_ADDRESS_ADDR_TYPE_TAG] = |
| new GrammarTransition<HostAddressContainer>( |
| HostAddressStatesEnum.HOST_ADDRESS_SEQ_STATE, |
| HostAddressStatesEnum.HOST_ADDRESS_ADDR_TYPE_TAG_STATE, |
| KerberosConstants.HOST_ADDRESS_ADDR_TYPE_TAG, |
| new CheckNotNullLength<HostAddressContainer>() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from addr-type tag to addr-type value |
| // -------------------------------------------------------------------------------------------- |
| // HostAddress ::= SEQUENCE |
| // addr-type [0] Int32, |
| super.transitions[HostAddressStatesEnum.HOST_ADDRESS_ADDR_TYPE_TAG_STATE.ordinal()][UniversalTag.INTEGER |
| .getValue()] = |
| new GrammarTransition<HostAddressContainer>( |
| HostAddressStatesEnum.HOST_ADDRESS_ADDR_TYPE_TAG_STATE, |
| HostAddressStatesEnum.HOST_ADDRESS_ADDR_TYPE_STATE, |
| UniversalTag.INTEGER, |
| new StoreAddrType() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from addr-type value to address tag |
| // -------------------------------------------------------------------------------------------- |
| // HostAddress ::= SEQUENCE |
| // ... |
| // address [1] |
| super.transitions[HostAddressStatesEnum.HOST_ADDRESS_ADDR_TYPE_STATE.ordinal()][KerberosConstants.HOST_ADDRESS_ADDRESS_TAG] = |
| new GrammarTransition<HostAddressContainer>( |
| HostAddressStatesEnum.HOST_ADDRESS_ADDR_TYPE_STATE, |
| HostAddressStatesEnum.HOST_ADDRESS_ADDRESS_TAG_STATE, |
| KerberosConstants.HOST_ADDRESS_ADDRESS_TAG, |
| new CheckNotNullLength<HostAddressContainer>() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from address tag to address value |
| // -------------------------------------------------------------------------------------------- |
| // HostAddress ::= SEQUENCE |
| // ... |
| // address [1] OCTET STRING |
| super.transitions[HostAddressStatesEnum.HOST_ADDRESS_ADDRESS_TAG_STATE.ordinal()][UniversalTag.OCTET_STRING |
| .ordinal()] = |
| new GrammarTransition<HostAddressContainer>( |
| HostAddressStatesEnum.HOST_ADDRESS_ADDRESS_TAG_STATE, |
| HostAddressStatesEnum.HOST_ADDRESS_ADDRESS_STATE, |
| UniversalTag.OCTET_STRING, |
| new StoreAddress() ); |
| } |
| |
| |
| /** |
| * Get the instance of this grammar |
| * |
| * @return An instance on the HostAddress Grammar |
| */ |
| public static Grammar<HostAddressContainer> getInstance() |
| { |
| return instance; |
| } |
| } |