| /* |
| * 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.actions; |
| |
| |
| import org.apache.directory.api.asn1.DecoderException; |
| import org.apache.directory.api.asn1.ber.grammar.GrammarAction; |
| import org.apache.directory.api.asn1.ber.tlv.TLV; |
| import org.apache.directory.api.i18n.I18n; |
| import org.apache.directory.api.ldap.codec.api.LdapMessageContainer; |
| import org.apache.directory.api.ldap.codec.api.MessageDecorator; |
| import org.apache.directory.api.ldap.model.message.Message; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * The action used to check that the TLV length is not null |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class CheckLengthNotNull extends GrammarAction<LdapMessageContainer<MessageDecorator<? extends Message>>> |
| { |
| /** The logger */ |
| private static final Logger LOG = LoggerFactory.getLogger( CheckLengthNotNull.class ); |
| |
| |
| /** |
| * Instantiates the action. |
| */ |
| public CheckLengthNotNull() |
| { |
| super( "Check that the length is not null" ); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void action( LdapMessageContainer<MessageDecorator<? extends Message>> container ) throws DecoderException |
| { |
| TLV tlv = container.getCurrentTLV(); |
| int expectedLength = tlv.getLength(); |
| |
| // The Length should be null |
| if ( expectedLength == 0 ) |
| { |
| String msg = I18n.err( I18n.ERR_04096 ); |
| LOG.error( msg ); |
| |
| // This will generate a PROTOCOL_ERROR |
| throw new DecoderException( msg ); |
| } |
| } |
| } |