/*
* 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.extras.extended.ads_impl.pwdModify;
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.ldap.codec.api.LdapApiServiceFactory;
import org.apache.directory.api.ldap.extras.extended.PwdModifyResponseImpl;
import org.apache.directory.api.util.Strings;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* This class implements the PasswordModifyResponse extended operation's ASN.1 grammer.
* All the actions are declared in this class. As it is a singleton,
* these declaration are only done once. The grammar is :
*
* <pre>
* PasswdModifyResponseValue ::= SEQUENCE {
* genPasswd [0] OCTET STRING OPTIONAL }
* </pre>
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
*/
public class PasswordModifyResponseGrammar extends AbstractGrammar<PasswordModifyResponseContainer>
{
/** logger */
private static final Logger LOG = LoggerFactory.getLogger( PasswordModifyResponseGrammar.class );
/** Speedup for logs */
static final boolean IS_DEBUG = LOG.isDebugEnabled();
/** The instance of grammar. PasswdModifyResponseGrammar is a singleton */
private static Grammar<PasswordModifyResponseContainer> instance = new PasswordModifyResponseGrammar();
@SuppressWarnings("unchecked")
public PasswordModifyResponseGrammar()
{
setName( PasswordModifyResponseGrammar.class.getName() );
// Create the transitions table
super.transitions = new GrammarTransition[PasswordModifyResponseStatesEnum.LAST_PASSWORD_MODIFY_RESPONSE_STATE
.ordinal()][256];
/**
* Transition from init state to PasswordModify Response Value
*
* PasswdModifyResponseValue ::= SEQUENCE {
* ...
*
* Creates the PasswdModifyResponse object
*/
super.transitions[PasswordModifyResponseStatesEnum.START_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] =
new GrammarTransition<PasswordModifyResponseContainer>(
PasswordModifyResponseStatesEnum.START_STATE,
PasswordModifyResponseStatesEnum.PASSWORD_MODIFY_RESPONSE_SEQUENCE_STATE,
UniversalTag.SEQUENCE.getValue(), new GrammarAction<PasswordModifyResponseContainer>(
"Init PasswordModifyResponse" )
{
public void action( PasswordModifyResponseContainer container )
{
PasswordModifyResponseDecorator passwordModifyResponse = new PasswordModifyResponseDecorator(
LdapApiServiceFactory.getSingleton(), new PwdModifyResponseImpl() );
container.setPasswordModifyResponse( passwordModifyResponse );
// We may have nothing left
container.setGrammarEndAllowed( true );
}
} );
/**
* Transition from PasswordModify Response Value to genPassword
*
* PasswdModifyResponseValue ::= SEQUENCE {
* genPassword [0] OCTET STRING OPTIONAL
* ...
*
* Set the userIdentity into the PasswdModifyResponset instance.
*/
super.transitions[PasswordModifyResponseStatesEnum.PASSWORD_MODIFY_RESPONSE_SEQUENCE_STATE.ordinal()][PasswordModifyResponseConstants.GEN_PASSORWD_TAG] =
new GrammarTransition<PasswordModifyResponseContainer>(
PasswordModifyResponseStatesEnum.PASSWORD_MODIFY_RESPONSE_SEQUENCE_STATE,
PasswordModifyResponseStatesEnum.GEN_PASSWORD_STATE,
PasswordModifyResponseConstants.GEN_PASSORWD_TAG,
new GrammarAction<PasswordModifyResponseContainer>( "Set PasswordModifyResponse user identity" )
{
public void action( PasswordModifyResponseContainer container ) throws DecoderException
{
BerValue value = container.getCurrentTLV().getValue();
byte[] genPassword = value.getData();
if ( IS_DEBUG )
{
LOG.debug( "GenPassword = " + Strings.dumpBytes( genPassword ) );
}
if ( genPassword == null )
{
genPassword = Strings.EMPTY_BYTES;
}
( ( PasswordModifyResponseDecorator ) container.getPwdModifyResponse() )
.setGenPassword( genPassword );
// We may have nothing left
container.setGrammarEndAllowed( true );
}
} );
}
/**
* This class is a singleton.
*
* @return An instance on this grammar
*/
public static Grammar<PasswordModifyResponseContainer> getInstance()
{
return instance;
}
}