Le 27/01/2017 à 14:09, Kiran Ayyagari a écrit :
> On Fri, Jan 27, 2017 at 5:46 PM, [email protected] <[email protected]>
> wrote:
>
>> Hi,
>>
>> I have an application running in an OSGi container that uses the LDAP API
>> and DSML parser and I would like to use the server side sorting control.
>>
>> When I send the following control...
>>
>> <ns2:control criticality="true" type="1.2.840.113556.1.4.473">
>> <ns2:controlValue xmlns:xs="http://www.w3.org/2001/XMLSchema";
>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
>> xsi:type="xs:base64Binary">MAYwBAQCc24=</ns2:controlValue>
>> </ns2:control>
>>
>> ...I get an error: "sorted results control value is absent".
>>
>> 2017-01-27 12:19:37,304 | DEBUG | NioProcessor-1 | CODEC_LOG
>> | 94 - org.apache.directory.api.ldap.net.mina - 1.0.0.RC2 |
>> Decoded LdapMessage : MessageType : SEARCH_RESULT_DONE
>> Message ID : 4
>> Search Result Done
>> Ldap Result
>> Result code : (PROTOCOL_ERROR) protocolError
>> Matched Dn : ''
>> Diagnostic message : 'sorted results control value is absent'
>>
>> I saw that an OpaqueControl is created for the sort control. Debugging I
>> noticed that setEncodedValue is never called.
>>
>> org.apache.directory.api.ldap.model.message.SearchRequestImpl@7ea4768c
>> OpaqueControl Control
>> Type OID : '1.2.840.113556.1.4.473'
>> Criticality : 'true'
>>
>> Looking into this I came across the control factories registered on
>> LdapApiService and saw that there are two implementations:
>> - DefaultLdapCodecService
>> - StandaloneLdapApiService
>>
>> DefaultLdapCodecService is what is initialized in OSGi setup. I noticed
>> that DefaultLdapCodecService unlike StandaloneLdapApiService does not
>> register SortRequestFactory/SortResponseFactory. To try if this solves
>> the issue I registered the two factories but then I get a
>> ClassCastException:
>>
>> Caused by: java.lang.ClassCastException:
>> org.apache.directory.api.dsmlv2.DsmlControl
>> cannot be cast to org.apache.directory.api.ldap.
>> model.message.controls.SortRequest
>> at org.apache.directory.api.ldap.codec.controls.sort.SortReques
>> tFactory.newCodecControl(SortRequestFactory.java:35)[89:org.
>> apache.directory.api.ldap.codec.core:1.0.0.RC2]
>> at org.apache.directory.api.ldap.codec.osgi.DefaultLdapCodecSer
>> vice.newControl(DefaultLdapCodecService.java:253)
>> at org.apache.directory.api.ldap.codec.api.MessageDecorator.add
>> Control(MessageDecorator.java:329)[89:org.apache.directory.
>> api.ldap.codec.core:1.0.0.RC2]
>> at org.apache.directory.api.ldap.codec.decorators.SearchRequest
>> Decorator.addControl(SearchRequestDecorator.java:1072)
>> at org.apache.directory.api.ldap.codec.decorators.SearchRequest
>> Decorator.addControl(SearchRequestDecorator.java:83)
>> at org.apache.directory.api.ldap.codec.api.MessageDecorator.get
>> Decorator(MessageDecorator.java:204)[89:org.apache.directory
>> .api.ldap.codec.core:1.0.0.RC2]
>> at org.apache.directory.api.ldap.codec.api.LdapEncoder.encodeMe
>> ssage(LdapEncoder.java:159)[89:org.apache.directory.api.
>> ldap.codec.core:1.0.0.RC2]
>> at org.apache.directory.api.ldap.codec.protocol.mina.LdapProtoc
>> olEncoder.encode(LdapProtocolEncoder.java:81)
>> at org.apache.mina.filter.codec.ProtocolCodecFilter.filterWrite
>> (ProtocolCodecFilter.java:299)
>> ... 58 more
>>
>> I do not understand how the DSMLv2 parser works together with the LDAP
>> codec and start to wonder if the server side sort control is even supposed
>> to work at the moment.
>> - Is it possible that the parser for DSMLv2 does not support the server
>> side sort control?
>>
> no this case shouldn't arise cause DSML engine internally uses LDAP API to
> perform the operation
>
>> - Should SortRequestFactory/SortResponseFactory be registered or is there
>> a reason why they are not registered on DefaultLdapCodecService per default?
>>
> I am suspecting that this might be the issue.
Yes, it seems the SortRequest/Response factories aren't declared in the
DefaultLdapCodecService. Adding those lines in the loadStockControls()
method should do the trick :
ControlFactory<SortRequest> sortRequestFactory = new
SortRequestFactory( this );
controlFactories.put( sortRequestFactory.getOid(),
sortRequestFactory );
LOG.info( "Registered pre-bundled control factory: {}",
sortRequestFactory.getOid() );
ControlFactory<SortResponse> sortResponseFactory = new
SortResponseFactory( this );
controlFactories.put( sortResponseFactory.getOid(),
sortResponseFactory );
LOG.info( "Registered pre-bundled control factory: {}",
sortResponseFactory.getOid() );
--
Emmanuel Lecharny
Symas.com
directory.apache.org
