/*
* 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.methodData;
import org.apache.directory.shared.asn1.actions.CheckNotNullLength;
import org.apache.directory.shared.asn1.ber.grammar.AbstractGrammar;
import org.apache.directory.shared.asn1.ber.grammar.Grammar;
import org.apache.directory.shared.asn1.ber.grammar.GrammarTransition;
import org.apache.directory.shared.asn1.ber.tlv.UniversalTag;
import org.apache.directory.shared.kerberos.codec.methodData.actions.AddPaData;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* This class implements the METHOD-DATA 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 MethodDataGrammar extends AbstractGrammar<MethodDataContainer>
{
/** The logger */
static final Logger LOG = LoggerFactory.getLogger( MethodDataGrammar.class );
/** A speedup for logger */
static final boolean IS_DEBUG = LOG.isDebugEnabled();
/** The instance of grammar. MethodDataGrammar is a singleton */
private static Grammar<MethodDataContainer> instance = new MethodDataGrammar();
/**
* Creates a new MethodDataGrammar object.
*/
@SuppressWarnings("unchecked")
private MethodDataGrammar()
{
setName( MethodDataGrammar.class.getName() );
// Create the transitions table
super.transitions = new GrammarTransition[MethodDataStatesEnum.LAST_METHOD_DATA_STATE.ordinal()][256];
// ============================================================================================
// METHOD-DATA
// ============================================================================================
// --------------------------------------------------------------------------------------------
// Transition from METHOD-DATA init to METHOD-DATA SEQ
// --------------------------------------------------------------------------------------------
// METHOD-DATA ::= SEQUENCE
super.transitions[MethodDataStatesEnum.START_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] =
new GrammarTransition<MethodDataContainer>(
MethodDataStatesEnum.START_STATE,
MethodDataStatesEnum.METHOD_DATA_SEQ_STATE,
UniversalTag.SEQUENCE,
new CheckNotNullLength<MethodDataContainer>() );
// --------------------------------------------------------------------------------------------
// Transition from METHOD-DATA SEQ to PA-DATA
// --------------------------------------------------------------------------------------------
// METHOD-DATA ::= SEQUENCE OF <PA-DATA>
//
super.transitions[MethodDataStatesEnum.METHOD_DATA_SEQ_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] =
new GrammarTransition<MethodDataContainer>(
MethodDataStatesEnum.METHOD_DATA_SEQ_STATE,
MethodDataStatesEnum.METHOD_DATA_SEQ_STATE,
UniversalTag.SEQUENCE,
new AddPaData() );
}
/**
* Get the instance of this grammar
*
* @return An instance on the METHOD-DATA Grammar
*/
public static Grammar<MethodDataContainer> getInstance()
{
return instance;
}
}