| /* |
| * 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.shared.ldap.codec.actions; |
| |
| |
| import org.apache.directory.shared.asn1.DecoderException; |
| import org.apache.directory.shared.asn1.ber.grammar.GrammarAction; |
| import org.apache.directory.shared.asn1.ber.tlv.TLV; |
| import org.apache.directory.shared.asn1.ber.tlv.Value; |
| import org.apache.directory.shared.ldap.codec.LdapMessageContainer; |
| import org.apache.directory.shared.ldap.codec.api.CodecControl; |
| import org.apache.directory.shared.ldap.codec.decorators.MessageDecorator; |
| import org.apache.directory.shared.ldap.model.message.Control; |
| import org.apache.directory.shared.ldap.model.message.Message; |
| import org.apache.directory.shared.util.StringConstants; |
| import org.apache.directory.shared.util.Strings; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * The action used to set the value of a control. This is an extension point |
| * where different controls can be plugged in (at least eventually). For now we |
| * hard code controls. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class ControlValueAction extends GrammarAction<LdapMessageContainer<MessageDecorator<? extends Message>>> |
| { |
| /** The logger */ |
| private static final Logger LOG = LoggerFactory.getLogger( ControlValueAction.class ); |
| |
| /** Speedup for logs */ |
| private static final boolean IS_DEBUG = LOG.isDebugEnabled(); |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void action( LdapMessageContainer<MessageDecorator<? extends Message>> container ) throws DecoderException |
| { |
| TLV tlv = container.getCurrentTLV(); |
| |
| MessageDecorator<?> message = container.getMessage(); |
| CodecControl<? extends Control> control = message.getCurrentControl(); |
| |
| // Get the current control |
| Value value = tlv.getValue(); |
| |
| // Store the value - have to handle the special case of a 0 length value |
| if ( tlv.getLength() == 0 ) |
| { |
| control.setValue( StringConstants.EMPTY_BYTES ); |
| } |
| else |
| { |
| control.setValue( value.getData() ); |
| |
| if ( control != null ) |
| { |
| control.decode( value.getData() ); |
| } |
| } |
| |
| // We can have an END transition |
| container.setGrammarEndAllowed( true ); |
| |
| if ( IS_DEBUG ) |
| { |
| LOG.debug( "Control value : " + Strings.dumpBytes((byte[]) control.getValue()) ); |
| } |
| } |
| } |