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 * http://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 */
020 package org.apache.directory.shared.ldap.codec.actions;
021
022
023 import org.apache.directory.shared.asn1.ber.IAsn1Container;
024 import org.apache.directory.shared.asn1.ber.grammar.GrammarAction;
025 import org.apache.directory.shared.asn1.ber.tlv.TLV;
026 import org.apache.directory.shared.asn1.codec.DecoderException;
027 import org.apache.directory.shared.ldap.codec.LdapMessageContainer;
028 import org.apache.directory.shared.ldap.codec.extended.ExtendedResponseCodec;
029 import org.apache.directory.shared.ldap.util.StringTools;
030 import org.slf4j.Logger;
031 import org.slf4j.LoggerFactory;
032
033
034 /**
035 * The action used to store a Response to an ExtendedResponse
036 *
037 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
038 * @version $Rev$, $Date$,
039 */
040 public class ResponseAction extends GrammarAction
041 {
042 /** The logger */
043 private static final Logger log = LoggerFactory.getLogger( ResponseAction.class );
044
045 /** Speedup for logs */
046 private static final boolean IS_DEBUG = log.isDebugEnabled();
047
048 public ResponseAction()
049 {
050 super( "Store response" );
051 }
052
053 /**
054 * The initialization action
055 */
056 public void action( IAsn1Container container ) throws DecoderException
057 {
058
059 LdapMessageContainer ldapMessageContainer = ( LdapMessageContainer ) container;
060
061 // We can allocate the ExtendedResponse Object
062 ExtendedResponseCodec extendedResponse = ldapMessageContainer.getExtendedResponse();
063
064 // Get the Value and store it in the ExtendedResponse
065 TLV tlv = ldapMessageContainer.getCurrentTLV();
066
067 // We have to handle the special case of a 0 length matched
068 // OID
069 if ( tlv.getLength() == 0 )
070 {
071 extendedResponse.setResponse( StringTools.EMPTY_BYTES );
072 }
073 else
074 {
075 extendedResponse.setResponse( tlv.getValue().getData() );
076 }
077
078 // We can have an END transition
079 ldapMessageContainer.grammarEndAllowed( true );
080
081 if ( IS_DEBUG )
082 {
083 log.debug( "Extended value : {}", extendedResponse.getResponse() );
084 }
085 }
086 }