001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one
003 *  or more contributor license agreements.  See the NOTICE file
004 *  distributed with this work for additional information
005 *  regarding copyright ownership.  The ASF licenses this file
006 *  to you under the Apache License, Version 2.0 (the
007 *  "License"); you may not use this file except in compliance
008 *  with the License.  You may obtain a copy of the License at
009 *
010 *    https://www.apache.org/licenses/LICENSE-2.0
011 *
012 *  Unless required by applicable law or agreed to in writing,
013 *  software distributed under the License is distributed on an
014 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 *  KIND, either express or implied.  See the License for the
016 *  specific language governing permissions and limitations
017 *  under the License.
018 *
019 */
020package org.apache.directory.api.ldap.extras.controls.ad_impl;
021
022
023import org.apache.directory.api.asn1.ber.grammar.AbstractGrammar;
024import org.apache.directory.api.asn1.ber.grammar.Grammar;
025import org.apache.directory.api.asn1.ber.grammar.GrammarTransition;
026import org.apache.directory.api.asn1.ber.tlv.UniversalTag;
027import org.slf4j.Logger;
028import org.slf4j.LoggerFactory;
029
030
031/**
032 * The AdPolicyHints grammar
033 *
034 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
035 */
036public final class AdPolicyHintsGrammar extends AbstractGrammar<AdPolicyHintsContainer>
037{
038    static final Logger LOG = LoggerFactory.getLogger( AdPolicyHintsGrammar.class );
039
040    private static Grammar<?> instance = new AdPolicyHintsGrammar();
041
042
043    @SuppressWarnings("unchecked")
044    private AdPolicyHintsGrammar()
045    {
046        setName( AdPolicyHintsGrammar.class.getName() );
047
048        super.transitions = new GrammarTransition[AdPolicyHintsStates.END_STATE.ordinal()][256];
049
050        super.transitions[AdPolicyHintsStates.START_STATE.ordinal()][UniversalTag.SEQUENCE
051            .getValue()] = new GrammarTransition<AdPolicyHintsContainer>(
052                AdPolicyHintsStates.START_STATE, AdPolicyHintsStates.AD_POLICY_HINTS_SEQUENCE_STATE,
053                UniversalTag.SEQUENCE.getValue(), null );
054
055        super.transitions[AdPolicyHintsStates.AD_POLICY_HINTS_SEQUENCE_STATE.ordinal()][UniversalTag.INTEGER
056            .getValue()] = new GrammarTransition<AdPolicyHintsContainer>(
057                AdPolicyHintsStates.AD_POLICY_HINTS_SEQUENCE_STATE,
058                AdPolicyHintsStates.AD_POLICY_HINTS_FLAGS_STATE, UniversalTag.INTEGER.getValue(),
059                new StoreFlags() );
060    }
061
062
063    /**
064     * @return the singleton instance of the AdPolicyHintsGrammar
065     */
066    public static Grammar<?> getInstance()
067    {
068        return instance;
069    }
070}