| /* |
| * 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.api.ldap.codec.controls.sort; |
| |
| |
| import org.apache.directory.api.asn1.DecoderException; |
| 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.GrammarAction; |
| import org.apache.directory.api.asn1.ber.grammar.GrammarTransition; |
| import org.apache.directory.api.asn1.ber.tlv.BerValue; |
| import org.apache.directory.api.asn1.ber.tlv.UniversalTag; |
| import org.apache.directory.api.util.Strings; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * Grammar for decoding SortResponseControl. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public final class SortResponseGrammar extends AbstractGrammar<SortResponseContainer> |
| { |
| /** The logger */ |
| static final Logger LOG = LoggerFactory.getLogger( SortRequestGrammar.class ); |
| |
| /** Speedup for logs */ |
| static final boolean IS_DEBUG = LOG.isDebugEnabled(); |
| |
| /** The instance of grammar. SortResponseGrammar is a singleton */ |
| private static Grammar<SortResponseContainer> instance = new SortResponseGrammar(); |
| |
| |
| @SuppressWarnings("unchecked") |
| private SortResponseGrammar() |
| { |
| setName( SortResponseGrammar.class.getName() ); |
| |
| // Create the transitions table |
| super.transitions = new GrammarTransition[SortResponseStates.END_STATE.ordinal()][256]; |
| |
| super.transitions[SortResponseStates.START_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] = |
| new GrammarTransition<SortResponseContainer>( SortResponseStates.START_STATE, |
| SortResponseStates.SEQUENCE_STATE, |
| UniversalTag.SEQUENCE.getValue(), null ); |
| |
| super.transitions[SortResponseStates.SEQUENCE_STATE.ordinal()][UniversalTag.ENUMERATED.getValue()] = |
| new GrammarTransition<SortResponseContainer>( SortResponseStates.SEQUENCE_STATE, |
| SortResponseStates.RESULT_CODE_STATE, |
| UniversalTag.ENUMERATED.getValue(), new StoreSortResponseResultCode<SortResponseContainer>() ); |
| |
| super.transitions[SortResponseStates.RESULT_CODE_STATE.ordinal()][UniversalTag.OCTET_STRING.getValue()] = |
| new GrammarTransition<SortResponseContainer>( SortResponseStates.RESULT_CODE_STATE, |
| SortResponseStates.AT_DESC_STATE, |
| UniversalTag.OCTET_STRING.getValue(), new GrammarAction<SortResponseContainer>() |
| { |
| |
| @Override |
| public void action( SortResponseContainer container ) throws DecoderException |
| { |
| BerValue value = container.getCurrentTLV().getValue(); |
| |
| String atType = Strings.utf8ToString( value.getData() ); |
| if ( IS_DEBUG ) |
| { |
| LOG.debug( "AttributeType = " + atType ); |
| } |
| |
| container.getControl().setAttributeName( atType ); |
| container.setGrammarEndAllowed( true ); |
| } |
| } ); |
| |
| } |
| |
| |
| /** |
| * This class is a singleton. |
| * |
| * @return An instance on this grammar |
| */ |
| public static Grammar<?> getInstance() |
| { |
| return instance; |
| } |
| } |