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From Dileepa Jayakody <djayak...@zaizi.com>
Subject Re: Runtime dependency issues in manifoldcf connector
Date Thu, 06 Aug 2015 10:17:36 GMT
Hi Karl,

Thanks for your response.

On Thu, Aug 6, 2015 at 3:36 PM, Karl Wright <daddywri@gmail.com> wrote:

> Where are you putting the new jars?
>

> There are two different classloader levels in ManifoldCF: the core
> classloader level, and the connector classloader level.  Jars that only
> connectors depend on should be placed in the connector-lib directory.  Can
> you verify that all of your resteasy jars and their dependencies are in
> that directory?
>
>
I have bundled my connector with all the dependencies as a single jar using
maven assembly plugin.
I put that jar to connector-lib.


> It's also the case that sometimes a specific technology cannot work with
> the ManifoldCF classloader structure very well.  If that happens, we are
> usually forced to move the jar and its dependencies to the core level.  But
> before you presume that, let's figure out what in fact you are doing.
>
> If you are trying to run your connector with only a maven build, I would
> strongly encourage you not to do that.  Use the ant build instead, until
> you get things straightened out.
>
> I didn't get this part clearly. Are you suggesting to use Ant to build my
connector?
Can you please elaborate?


> Karl
>
> Thanks,
Dileepa

>
> On Thu, Aug 6, 2015 at 5:11 AM, Dileepa Jayakody <djayakody@zaizi.com>
> wrote:
>
> > Hi All,
> >
> > I started developing a transformation connector to Apache ManifoldCF to
> > enhance repo-documents by connecting to Apache Stanbol. In my connector
> I'm
> > using Apache Stanbol Client version 1.0-Snapshot [1] which is using
> > RestEasy 3.0.8.Final as a dependency. When I invoke the Stanbol client
> in a
> > standalone java class (Main method) it works with excepted results, but
> > when I use it in my ManifoldCF connector with all dependencies (including
> > RestEasy 3.0.8 related dependencies: ) I keep getting below error in
> > ManifoldCF runtime [2].
> > I think it's due to some cyclic dependency issue with ManifoldCF and
> > RestEasy 3.0.8 used in my component.
> > I tried out this in both ManifoldCF 1.8 and 2.1 both get the same error.
> >
> > Can someone please advice on how I should resolve this dependency issue?
> >
> > [1] https://github.com/zaizi/apache-stanbol-client
> >
> > [2] ERROR 2015-08-05 16:07:48,401 (Worker thread '4') - Error enhancing
> the
> > document  :
> > file:/Users/djayakody/Documents/zaizi/manifoldTest/simple/sample0.txt
> > javax.ws.rs.ProcessingException: Unable to invoke request
> >     at
> >
> >
> org.jboss.resteasy.client.jaxrs.engines.ApacheHttpClient4Engine.invoke(ApacheHttpClient4Engine.java:287)
> >     at
> >
> >
> org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.invoke(ClientInvocation.java:407)
> >     at
> >
> >
> org.jboss.resteasy.client.jaxrs.internal.ClientInvocationBuilder.post(ClientInvocationBuilder.java:195)
> >     at
> >
> >
> org.apache.stanbol.client.rest.RestClientExecutor.post(RestClientExecutor.java:63)
> >     at
> >
> >
> org.apache.stanbol.client.enhancer.impl.EnhancerImpl.enhance(EnhancerImpl.java:74)
> >     at
> >
> >
> org.apache.manifoldcf.agents.transformation.stanbol.StanbolEnhancer.addOrReplaceDocumentWithException(StanbolEnhancer.java:251)
> >     at
> >
> >
> org.apache.manifoldcf.agents.incrementalingest.IncrementalIngester$PipelineAddEntryPoint.addOrReplaceDocumentWithException(IncrementalIngester.java:3221)
> >     at
> >
> >
> org.apache.manifoldcf.agents.incrementalingest.IncrementalIngester$PipelineAddFanout.sendDocument(IncrementalIngester.java:3072)
> >     at
> >
> >
> org.apache.manifoldcf.agents.incrementalingest.IncrementalIngester$MonitoredAddActivityWrapper.sendDocument(IncrementalIngester.java:3466)
> >     at
> >
> >
> org.apache.manifoldcf.agents.transformation.tika.TikaExtractor.addOrReplaceDocumentWithException(TikaExtractor.java:324)
> >     at
> >
> >
> org.apache.manifoldcf.agents.incrementalingest.IncrementalIngester$PipelineAddEntryPoint.addOrReplaceDocumentWithException(IncrementalIngester.java:3221)
> >     at
> >
> >
> org.apache.manifoldcf.agents.incrementalingest.IncrementalIngester$PipelineAddFanout.sendDocument(IncrementalIngester.java:3072)
> >     at
> >
> >
> org.apache.manifoldcf.agents.incrementalingest.IncrementalIngester$PipelineObjectWithVersions.addOrReplaceDocumentWithException(IncrementalIngester.java:2706)
> >     at
> >
> >
> org.apache.manifoldcf.agents.incrementalingest.IncrementalIngester.documentIngest(IncrementalIngester.java:756)
> >     at
> >
> >
> org.apache.manifoldcf.crawler.system.WorkerThread$ProcessActivity.ingestDocumentWithException(WorkerThread.java:1503)
> >     at
> >
> >
> org.apache.manifoldcf.crawler.system.WorkerThread$ProcessActivity.ingestDocumentWithException(WorkerThread.java:1468)
> >     at
> >
> >
> org.apache.manifoldcf.crawler.connectors.filesystem.FileConnector.processDocuments(FileConnector.java:404)
> >     at
> >
> >
> org.apache.manifoldcf.crawler.system.WorkerThread.run(WorkerThread.java:379)
> >
> > *Caused by: javax.ws.rs.ProcessingException: could not find writer for
> > content-type text/plain type: java.io.ByteArrayInputStream *   at
> >
> >
> org.jboss.resteasy.core.interception.ClientWriterInterceptorContext.throwWriterNotFoundException(ClientWriterInterceptorContext.java:40)
> >     at
> >
> >
> org.jboss.resteasy.core.interception.AbstractWriterInterceptorContext.getWriter(AbstractWriterInterceptorContext.java:138)
> >     at
> >
> >
> org.jboss.resteasy.core.interception.AbstractWriterInterceptorContext.proceed(AbstractWriterInterceptorContext.java:117)
> >     at
> >
> >
> org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.writeRequestBody(ClientInvocation.java:341)
> >     at
> >
> >
> org.jboss.resteasy.client.jaxrs.engines.ApacheHttpClient4Engine.writeRequestBodyToOutputStream(ApacheHttpClient4Engine.java:558)
> >     at
> >
> >
> org.jboss.resteasy.client.jaxrs.engines.ApacheHttpClient4Engine.buildEntity(ApacheHttpClient4Engine.java:524)
> >
> > Thanks,
> > Dileepa
> >
> > --
> >
> > ------------------------------
> > This message should be regarded as confidential. If you have received
> this
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> > Statements of intent shall only become binding when confirmed in hard
> copy
> > by an authorised signatory.
> >
> > Zaizi Ltd is registered in England and Wales with the registration number
> > 6440931. The Registered Office is Brook House, 229 Shepherds Bush Road,
> > London W6 7AN.
> >
>

-- 

------------------------------
This message should be regarded as confidential. If you have received this 
email in error please notify the sender and destroy it immediately. 
Statements of intent shall only become binding when confirmed in hard copy 
by an authorised signatory.

Zaizi Ltd is registered in England and Wales with the registration number 
6440931. The Registered Office is Brook House, 229 Shepherds Bush Road, 
London W6 7AN. 

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