| /* |
| * 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 |
| * |
| * https://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.extras.extended.ads_impl.endTransaction; |
| |
| |
| 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.BooleanDecoder; |
| import org.apache.directory.api.asn1.ber.tlv.BooleanDecoderException; |
| import org.apache.directory.api.i18n.I18n; |
| import org.apache.directory.api.util.Strings; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import static org.apache.directory.api.asn1.ber.tlv.UniversalTag.BOOLEAN; |
| import static org.apache.directory.api.asn1.ber.tlv.UniversalTag.OCTET_STRING; |
| import static org.apache.directory.api.asn1.ber.tlv.UniversalTag.SEQUENCE; |
| |
| /** |
| * This class implements the EndTransactionRequest extended operation's ASN.1 grammar. |
| * All the actions are declared in this class. As it is a singleton, |
| * these declaration are only done once. The grammar is : |
| * |
| * <pre> |
| * txnEndReq ::= SEQUENCE { |
| * commit BOOLEAN DEFAULT TRUE, |
| * identifier OCTET STRING } |
| * </pre> |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| |
| public class EndTransactionRequestGrammar extends AbstractGrammar<EndTransactionRequestContainer> |
| { |
| |
| /** logger */ |
| private static final Logger LOG = LoggerFactory.getLogger( EndTransactionRequestGrammar.class ); |
| |
| /** The instance of grammar. EndTransactionRequestGrammar is a singleton */ |
| private static Grammar<EndTransactionRequestContainer> instance = new EndTransactionRequestGrammar(); |
| |
| |
| /** |
| * Creates a new EndTransactionRequestGrammar object. |
| */ |
| @SuppressWarnings("unchecked") |
| public EndTransactionRequestGrammar() |
| { |
| setName( EndTransactionRequestGrammar.class.getName() ); |
| |
| // Create the transitions table |
| super.transitions = new GrammarTransition[EndTransactionRequestStates.LAST_STATE |
| .ordinal()][256]; |
| |
| /** |
| * Transition from init state to EndTransactionRequest Sequence |
| * |
| * txnEndReq ::= SEQUENCE { |
| * ... |
| * |
| * Creates the EndTransactionRequest object |
| */ |
| super.transitions[EndTransactionRequestStates.START_STATE.ordinal()][SEQUENCE.getValue()] = |
| new GrammarTransition<EndTransactionRequestContainer>( |
| EndTransactionRequestStates.START_STATE, |
| EndTransactionRequestStates.SEQUENCE_STATE, |
| SEQUENCE, |
| null ); |
| |
| /** |
| * Transition from Sequence to commit flag |
| * |
| * txnEndReq ::= SEQUENCE { |
| * commit BOOLEAN DEFAULT TRUE, |
| * ... |
| * |
| * Set the commit flag into the EndTransactionRequest instance. |
| */ |
| super.transitions[EndTransactionRequestStates.SEQUENCE_STATE.ordinal()][BOOLEAN.getValue()] = |
| new GrammarTransition<EndTransactionRequestContainer>( |
| EndTransactionRequestStates.SEQUENCE_STATE, |
| EndTransactionRequestStates.COMMIT_STATE, |
| BOOLEAN, |
| new GrammarAction<EndTransactionRequestContainer>( "Set EndTransactionRequest commit flag" ) |
| { |
| public void action( EndTransactionRequestContainer container ) throws DecoderException |
| { |
| BerValue value = container.getCurrentTLV().getValue(); |
| |
| try |
| { |
| container.getEndTransactionRequest().setCommit( BooleanDecoder.parse( value ) ); |
| } |
| catch ( BooleanDecoderException bde ) |
| { |
| LOG.error( I18n |
| .err( I18n.ERR_08221_BAD_END_TRANSACTION_COMMIT, Strings.dumpBytes( value.getData() ), bde.getMessage() ) ); |
| |
| // This will generate a PROTOCOL_ERROR |
| throw new DecoderException( bde.getMessage(), bde ); |
| } |
| } |
| } ); |
| |
| /** |
| * Transition from Sequence to identifier |
| * |
| * txnEndReq ::= SEQUENCE { |
| * identifier OCTET STRING } |
| * |
| * Set the commit flag into the EndTransactionRequest instance. |
| */ |
| super.transitions[EndTransactionRequestStates.SEQUENCE_STATE.ordinal()][OCTET_STRING.getValue()] = |
| new GrammarTransition<EndTransactionRequestContainer>( |
| EndTransactionRequestStates.SEQUENCE_STATE, |
| EndTransactionRequestStates.IDENTFIER_STATE, |
| OCTET_STRING, |
| new GrammarAction<EndTransactionRequestContainer>( "Set EndTransactionRequest identifier" ) |
| { |
| public void action( EndTransactionRequestContainer container ) |
| { |
| BerValue value = container.getCurrentTLV().getValue(); |
| |
| byte[] identifier = value.getData(); |
| |
| if ( LOG.isDebugEnabled() ) |
| { |
| LOG.debug( I18n.msg( I18n.MSG_08206_IDENTIFIER, Strings.dumpBytes( identifier ) ) ); |
| } |
| |
| if ( identifier == null ) |
| { |
| identifier = Strings.EMPTY_BYTES; |
| } |
| |
| container.getEndTransactionRequest().setTransactionId( identifier ); |
| |
| // We may have nothing left |
| container.setGrammarEndAllowed( true ); |
| } |
| } ); |
| |
| /** |
| * Transition from commit flag to identifier |
| * |
| * txnEndReq ::= SEQUENCE { |
| * commit BOOLEAN DEFAULT TRUE, |
| * identifier OCTET STRING } |
| * |
| * Set the identifier into the EndTransactionRequest instance. |
| */ |
| super.transitions[EndTransactionRequestStates.COMMIT_STATE.ordinal()][OCTET_STRING.getValue()] = |
| new GrammarTransition<EndTransactionRequestContainer>( |
| EndTransactionRequestStates.COMMIT_STATE, |
| EndTransactionRequestStates.IDENTFIER_STATE, |
| OCTET_STRING, |
| new GrammarAction<EndTransactionRequestContainer>( "Set EndTransactionRequest identifier" ) |
| { |
| public void action( EndTransactionRequestContainer container ) |
| { |
| BerValue value = container.getCurrentTLV().getValue(); |
| |
| byte[] identifier = value.getData(); |
| |
| if ( LOG.isDebugEnabled() ) |
| { |
| LOG.debug( I18n.msg( I18n.MSG_08206_IDENTIFIER, Strings.dumpBytes( identifier ) ) ); |
| } |
| |
| if ( identifier == null ) |
| { |
| identifier = Strings.EMPTY_BYTES; |
| } |
| |
| container.getEndTransactionRequest().setTransactionId( identifier ); |
| |
| // We may have nothing left |
| container.setGrammarEndAllowed( true ); |
| } |
| } ); |
| } |
| |
| |
| /** |
| * This class is a singleton. |
| * |
| * @return An instance on this grammar |
| */ |
| public static Grammar<EndTransactionRequestContainer> getInstance() |
| { |
| return instance; |
| } |
| } |