| /* |
| * 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.gracefulDisconnect; |
| |
| |
| import org.apache.directory.api.asn1.DecoderException; |
| import org.apache.directory.api.asn1.ber.grammar.AbstractGrammar; |
| 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.IntegerDecoder; |
| import org.apache.directory.api.asn1.ber.tlv.IntegerDecoderException; |
| import org.apache.directory.api.asn1.ber.tlv.UniversalTag; |
| import org.apache.directory.api.i18n.I18n; |
| import org.apache.directory.api.ldap.model.exception.LdapURLEncodingException; |
| import org.apache.directory.api.ldap.model.url.LdapUrl; |
| import org.apache.directory.api.util.Strings; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * This class implements the Graceful Disconnect. All the actions are declared |
| * in this class. As it is a singleton, these declaration are only done once. |
| * The grammar is : |
| * |
| * <pre> |
| * GracefulDisconnect ::= SEQUENCE { |
| * timeOffline INTEGER (0..720) DEFAULT 0, |
| * delay [0] INTEGER (0..86400) DEFAULT 0, |
| * replicatedContexts Referral OPTIONAL |
| * } |
| * |
| * Referral ::= SEQUENCE OF LDAPURL |
| * |
| * LDAPURL ::= LDAPString -- limited to characters permitted in URLs |
| * |
| * LDAPString ::= OCTET STRING |
| * </pre> |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public final class GracefulDisconnectResponseGrammar extends AbstractGrammar<GracefulDisconnectResponseContainer> |
| { |
| /** The logger */ |
| static final Logger LOG = LoggerFactory.getLogger( GracefulDisconnectResponseGrammar.class ); |
| |
| /** The instance of grammar. GracefulDisconnectnGrammar is a singleton */ |
| private static GracefulDisconnectResponseGrammar instance = new GracefulDisconnectResponseGrammar(); |
| |
| /** |
| * The action used to store a Time Offline. |
| */ |
| private GrammarAction<GracefulDisconnectResponseContainer> storeDelay = |
| new GrammarAction<GracefulDisconnectResponseContainer>( "Set Graceful Disconnect Delay" ) |
| { |
| public void action( GracefulDisconnectResponseContainer container ) throws DecoderException |
| { |
| BerValue value = container.getCurrentTLV().getValue(); |
| |
| try |
| { |
| int delay = IntegerDecoder.parse( value, 0, 86400 ); |
| |
| if ( LOG.isDebugEnabled() ) |
| { |
| LOG.debug( I18n.msg( I18n.MSG_08204_DELAY, delay ) ); |
| } |
| |
| container.getGracefulDisconnectResponse().setDelay( delay ); |
| container.setGrammarEndAllowed( true ); |
| } |
| catch ( IntegerDecoderException ide ) |
| { |
| String msg = I18n.err( I18n.ERR_08205_CANNOT_DECODE_DELAY, Strings.dumpBytes( value.getData() ) ); |
| LOG.error( msg ); |
| throw new DecoderException( msg, ide ); |
| } |
| } |
| }; |
| |
| /** |
| * The action used to store a referral. |
| */ |
| private GrammarAction<GracefulDisconnectResponseContainer> storeReferral = |
| new GrammarAction<GracefulDisconnectResponseContainer>( "Stores a referral" ) |
| { |
| public void action( GracefulDisconnectResponseContainer container ) throws DecoderException |
| { |
| BerValue value = container.getCurrentTLV().getValue(); |
| |
| try |
| { |
| if ( Strings.isEmpty( value.getData() ) ) |
| { |
| String msg = I18n.err( I18n.ERR_08224_NULL_URL_DECODING_FAILURE ); |
| LOG.error( msg ); |
| throw new DecoderException( msg ); |
| } |
| |
| String url = Strings.utf8ToString( value.getData() ); |
| |
| LdapUrl ldapUrl = new LdapUrl( url ); |
| container.getGracefulDisconnectResponse().addReplicatedContexts( url ); |
| container.setGrammarEndAllowed( true ); |
| |
| if ( LOG.isDebugEnabled() ) |
| { |
| LOG.debug( I18n.msg( I18n.MSG_08214_STORES_A_REFERRAL, ldapUrl ) ); |
| } |
| } |
| catch ( LdapURLEncodingException luee ) |
| { |
| String msg = I18n.err( I18n.ERR_08225_URL_DECODING_FAILURE, Strings.dumpBytes( value.getData() ) ); |
| LOG.error( msg ); |
| throw new DecoderException( msg, luee ); |
| } |
| } |
| }; |
| |
| /** |
| * The action used to store a Time Offline. |
| */ |
| private GrammarAction<GracefulDisconnectResponseContainer> storeTimeOffline = |
| new GrammarAction<GracefulDisconnectResponseContainer>( "Set Graceful Disconnect time offline" ) |
| { |
| public void action( GracefulDisconnectResponseContainer container ) throws DecoderException |
| { |
| BerValue value = container.getCurrentTLV().getValue(); |
| |
| try |
| { |
| int timeOffline = IntegerDecoder.parse( value, 0, 720 ); |
| |
| if ( LOG.isDebugEnabled() ) |
| { |
| LOG.debug( I18n.msg( I18n.MSG_08216_TIME_OFFLINE, timeOffline ) ); |
| } |
| |
| container.getGracefulDisconnectResponse().setTimeOffline( timeOffline ); |
| container.setGrammarEndAllowed( true ); |
| } |
| catch ( IntegerDecoderException ide ) |
| { |
| String msg = I18n.err( I18n.ERR_08206_TIME_OFFLINE_DECODING_FAILED, Strings.dumpBytes( value.getData() ) ); |
| LOG.error( msg ); |
| throw new DecoderException( msg, ide ); |
| } |
| } |
| }; |
| |
| |
| /** |
| * Creates a new GracefulDisconnectGrammar object. |
| */ |
| @SuppressWarnings("unchecked") |
| private GracefulDisconnectResponseGrammar() |
| { |
| setName( GracefulDisconnectResponseGrammar.class.getName() ); |
| |
| // Create the transitions table |
| super.transitions = new GrammarTransition[GracefulDisconnectStatesEnum.LAST_GRACEFUL_DISCONNECT_STATE.ordinal()][256]; |
| |
| /** |
| * Transition from init state to graceful disconnect |
| * GracefulDisconnect ::= SEQUENCE { |
| * ... |
| * |
| * Creates the GracefulDisconnect object |
| */ |
| super.transitions[GracefulDisconnectStatesEnum.START_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] = |
| new GrammarTransition<GracefulDisconnectResponseContainer>( GracefulDisconnectStatesEnum.START_STATE, |
| GracefulDisconnectStatesEnum.GRACEFUL_DISCONNECT_SEQUENCE_STATE, |
| UniversalTag.SEQUENCE.getValue(), |
| new GrammarAction<GracefulDisconnectResponseContainer>( "Init Graceful Disconnect" ) |
| { |
| public void action( GracefulDisconnectResponseContainer container ) |
| { |
| if ( container.getCurrentTLV().getLength() == 0 ) |
| { |
| container.setGrammarEndAllowed( true ); |
| } |
| } |
| } ); |
| |
| /** |
| * Transition from graceful disconnect to time offline |
| * |
| * GracefulDisconnect ::= SEQUENCE { |
| * timeOffline INTEGER (0..720) DEFAULT 0, |
| * ... |
| * |
| * Set the time offline value into the GracefulDisconnect object. |
| */ |
| super.transitions[GracefulDisconnectStatesEnum.GRACEFUL_DISCONNECT_SEQUENCE_STATE.ordinal()][UniversalTag.INTEGER |
| .getValue()] = |
| new GrammarTransition<GracefulDisconnectResponseContainer>( |
| GracefulDisconnectStatesEnum.GRACEFUL_DISCONNECT_SEQUENCE_STATE, |
| GracefulDisconnectStatesEnum.TIME_OFFLINE_STATE, |
| UniversalTag.INTEGER.getValue(), storeTimeOffline ); |
| |
| /** |
| * Transition from graceful disconnect to delay |
| * |
| * GracefulDisconnect ::= SEQUENCE { |
| * ... |
| * delay [0] INTEGER (0..86400) DEFAULT 0, |
| * ... |
| * |
| * Set the delay value into the GracefulDisconnect object. |
| */ |
| super.transitions[GracefulDisconnectStatesEnum.GRACEFUL_DISCONNECT_SEQUENCE_STATE.ordinal()][GracefulActionConstants.GRACEFUL_ACTION_DELAY_TAG] = |
| new GrammarTransition<GracefulDisconnectResponseContainer>( |
| GracefulDisconnectStatesEnum.GRACEFUL_DISCONNECT_SEQUENCE_STATE, |
| GracefulDisconnectStatesEnum.DELAY_STATE, |
| GracefulActionConstants.GRACEFUL_ACTION_DELAY_TAG, |
| storeDelay ); |
| |
| /** |
| * Transition from graceful disconnect to replicated Contexts |
| * |
| * GracefulDisconnect ::= SEQUENCE { |
| * ... |
| * replicatedContexts Referral OPTIONAL } |
| * |
| * Referral ::= SEQUENCE OF LDAPURL |
| * |
| * Get some replicated contexts. Nothing to do |
| */ |
| super.transitions[GracefulDisconnectStatesEnum.GRACEFUL_DISCONNECT_SEQUENCE_STATE.ordinal()][UniversalTag.SEQUENCE |
| .getValue()] = |
| new GrammarTransition<GracefulDisconnectResponseContainer>( |
| GracefulDisconnectStatesEnum.GRACEFUL_DISCONNECT_SEQUENCE_STATE, |
| GracefulDisconnectStatesEnum.REPLICATED_CONTEXTS_STATE, |
| UniversalTag.SEQUENCE.getValue(), null ); |
| |
| /** |
| * Transition from time offline to delay |
| * |
| * GracefulDisconnect ::= SEQUENCE { |
| * ... |
| * delay [0] INTEGER (0..86400) DEFAULT 0, |
| * ... |
| * |
| * Set the delay value into the GracefulDisconnect object. |
| */ |
| super.transitions[GracefulDisconnectStatesEnum.TIME_OFFLINE_STATE.ordinal()][GracefulActionConstants.GRACEFUL_ACTION_DELAY_TAG] = |
| new GrammarTransition<GracefulDisconnectResponseContainer>( GracefulDisconnectStatesEnum.TIME_OFFLINE_STATE, |
| GracefulDisconnectStatesEnum.DELAY_STATE, |
| GracefulActionConstants.GRACEFUL_ACTION_DELAY_TAG, |
| storeDelay ); |
| |
| /** |
| * Transition from time offline to replicated Contexts |
| * |
| * GracefulDisconnect ::= SEQUENCE { |
| * ... |
| * replicatedContexts Referral OPTIONAL } |
| * |
| * Referral ::= SEQUENCE OF LDAPURL |
| * |
| * Get some replicated contexts. Nothing to do |
| */ |
| super.transitions[GracefulDisconnectStatesEnum.TIME_OFFLINE_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] = |
| new GrammarTransition<GracefulDisconnectResponseContainer>( GracefulDisconnectStatesEnum.TIME_OFFLINE_STATE, |
| GracefulDisconnectStatesEnum.REPLICATED_CONTEXTS_STATE, |
| UniversalTag.SEQUENCE.getValue(), null ); |
| |
| /** |
| * Transition from delay to replicated contexts |
| * |
| * GracefulDisconnect ::= SEQUENCE { |
| * ... |
| * replicatedContexts Referral OPTIONAL } |
| * |
| * Referral ::= SEQUENCE OF LDAPURL |
| * |
| * Get some replicated contexts. Nothing to do |
| */ |
| super.transitions[GracefulDisconnectStatesEnum.DELAY_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] = |
| new GrammarTransition<GracefulDisconnectResponseContainer>( GracefulDisconnectStatesEnum.DELAY_STATE, |
| GracefulDisconnectStatesEnum.REPLICATED_CONTEXTS_STATE, |
| UniversalTag.SEQUENCE.getValue(), null ); |
| |
| /** |
| * Transition from replicated contexts to referral |
| * |
| * GracefulDisconnect ::= SEQUENCE { |
| * ... |
| * replicatedContexts Referral OPTIONAL } |
| * |
| * Referral ::= SEQUENCE OF LDAPURL |
| * |
| * Stores the referral |
| */ |
| super.transitions[GracefulDisconnectStatesEnum.REPLICATED_CONTEXTS_STATE.ordinal()][UniversalTag.OCTET_STRING |
| .getValue()] = |
| new GrammarTransition<GracefulDisconnectResponseContainer>( GracefulDisconnectStatesEnum.REPLICATED_CONTEXTS_STATE, |
| GracefulDisconnectStatesEnum.REFERRAL_STATE, |
| UniversalTag.OCTET_STRING.getValue(), |
| storeReferral ); |
| |
| /** |
| * Transition from referral to referral |
| * |
| * GracefulDisconnect ::= SEQUENCE { |
| * ... |
| * replicatedContexts Referral OPTIONAL } |
| * |
| * Referral ::= SEQUENCE OF LDAPURL |
| * |
| * Stores the referral |
| */ |
| super.transitions[GracefulDisconnectStatesEnum.REFERRAL_STATE.ordinal()][UniversalTag.OCTET_STRING.getValue()] = |
| new GrammarTransition<GracefulDisconnectResponseContainer>( GracefulDisconnectStatesEnum.REFERRAL_STATE, |
| GracefulDisconnectStatesEnum.REFERRAL_STATE, |
| UniversalTag.OCTET_STRING.getValue(), |
| storeReferral ); |
| |
| } |
| |
| |
| /** |
| * This class is a singleton. |
| * |
| * @return An instance on this grammar |
| */ |
| public static GracefulDisconnectResponseGrammar getInstance() |
| { |
| return instance; |
| } |
| } |