Re: UIMA AS NullPointerException in CasDefinition constructor
Hi, Very good. The Deploy_MeetingDetectorTAE.xml does not have a CR in the aggregate either. It is designed to be used with a driver as you have done, or by plugging a CR into the UimaAsynchronousEngine as is done in the README example. This approach is scalable by increasing the number of processing threads in the deployment descriptor, and by launching additional instances of the service Another example that plugs a CR directly into an AE, also referenced in README, is $UIMA_HOME/examples/deploy/as/MeetingFinderAggregate.xml $UIMA_HOME/examples/deploy/as/Deploy_MeetingFinder.xml This approach fits better the scaling model used by DUCC, where individual services have a CasMultiplier at the front of each service. Eddie On Mon, Aug 4, 2014 at 10:52 AM, Egbert van der Wal wrote: > Just to post an update on my own message: > > In the full version, I was able to fix it by not adding the Collection > Reader to > the AsychronousEngine but just initializing it without and afterwards doing > it manually: > > reader.initialize(); > while (reader.hasNext()) > ae.sendCAS(reader.getNext(ae.getCAS())); > > instead of just calling: > > ae.process(); > > makes it work as it should. So it seems that in my situation, there is a > problem with adding the CollectionReader to the engine. Not such a big > deal as my new approach works, but it would be nice to use the > CollectionReader as it's meant to be used. > > Thanks for any suggestions! > > Regards, > > Egbert > > > On Monday, August 04, 2014 02:07:18 PM you wrote: > > Hi Eddie, > > > > Thanks for the suggestion. I have limited time to work on this so my > > response may be slow now and again, but I'm still working on it. Your > input > > is very much appreciated! > > > > First of all, the command: > > > > runRemoteAsyncAE.sh/cmd tcp://localhost:61616 > > MeetingDetectorTaeQueue \ > > -d Deploy_MeetingDetectorTAE.xml \ > > -c > > > $UIMA_HOME/examples/descriptors/collection_reader/FileSystemCollectionR > > eader.xml > > > > completes without any errors, so the example seems to be running fine. > > > > I've been fiddling around with it and I was able to pinpoint the problem > to > > the collection reader. I have a collection reader (subclassed from > > CollectionReader_ImplBase) that is added to the AsynchronousEngine. > > However, it does not seem to be the specific implementation. > > > > I've reduced all code / annotators etc to a very basic set that still > shows > > the problem, where the AE only has one (very basic) annotator and the > > Collection Reader actually doesn't do anything except stating that > there's > > nothing left to do. > > > > I'll attach the Minimum Working Examples (or actually, not-working > > examples) that I've constructed to pinpoint the problem. > > > > Commenting out line 62 (the call to setCollectionReader) 'fixes' the > > problem. However, as you can see, the implementation of MWEReader > > doesn't do anything at all, so I don't really see why it would cause this > > trouble. > > > > Any ideas on what is causing this problem? > > > > Thanks, > > > > Egbert > > > > On Monday, July 28, 2014 05:14:39 PM Eddie Epstein wrote: > > > Hi Egbert, > > > > > > The README file for UIMA-AS shows an application example with > > > Deploy_MeetingDetectorTAE.xml.Does that run OK for you? > > > > > > Assuming yes, can you give more details about the scenario, perhaps > > > > the > > > > > explicit commands used? The descriptors used? > > > > > > Eddie > > > > > > > > > > > > On Mon, Jul 28, 2014 at 11:46 AM, Egbert van der Wal > > > > > > > > > wrote: > > > > Hi, > > > > > > > > I'm trying to convert an existing and functional UIMA pipeline to a > UIMA > > > > AS pipeline. > > > > > > > > > > > > > > > > I'm getting there, I created deployment descriptors for the > annotators > > > > and > > > > > > when running my application all individual annotators are launched > > > > correctly. The composite analysis engine also loads fine but I'm > getting > > > > a > > > > > > NullPointerException when calling initialize(deployCtx) on the > > > > UimaAsEngine > > > > on line 66. See the attached text document for the full exception. > > > > > > > > > > > > > > > > > > > > > > > > I found a similar issue in the bug tracker which was fixed in UIMA AS > > > > 2.3: > > > > https://issues.apache.org/jira/browse/UIMA-1376 > > > > > > > > > > > > > > > > But this seems to arise in mergeTypeSystem and this does not seem > > > > to be > > > > > > the case in my situation. The line number is the same however. > > > > > > > > > > > > >
Re: UIMA AS NullPointerException in CasDefinition constructor
Just to post an update on my own message: In the full version, I was able to fix it by not adding the Collection Reader to the AsychronousEngine but just initializing it without and afterwards doing it manually: reader.initialize(); while (reader.hasNext()) ae.sendCAS(reader.getNext(ae.getCAS())); instead of just calling: ae.process(); makes it work as it should. So it seems that in my situation, there is a problem with adding the CollectionReader to the engine. Not such a big deal as my new approach works, but it would be nice to use the CollectionReader as it's meant to be used. Thanks for any suggestions! Regards, Egbert On Monday, August 04, 2014 02:07:18 PM you wrote: > Hi Eddie, > > Thanks for the suggestion. I have limited time to work on this so my > response may be slow now and again, but I'm still working on it. Your input > is very much appreciated! > > First of all, the command: > > runRemoteAsyncAE.sh/cmd tcp://localhost:61616 > MeetingDetectorTaeQueue \ > -d Deploy_MeetingDetectorTAE.xml \ > -c > $UIMA_HOME/examples/descriptors/collection_reader/FileSystemCollectionR > eader.xml > > completes without any errors, so the example seems to be running fine. > > I've been fiddling around with it and I was able to pinpoint the problem to > the collection reader. I have a collection reader (subclassed from > CollectionReader_ImplBase) that is added to the AsynchronousEngine. > However, it does not seem to be the specific implementation. > > I've reduced all code / annotators etc to a very basic set that still shows > the problem, where the AE only has one (very basic) annotator and the > Collection Reader actually doesn't do anything except stating that there's > nothing left to do. > > I'll attach the Minimum Working Examples (or actually, not-working > examples) that I've constructed to pinpoint the problem. > > Commenting out line 62 (the call to setCollectionReader) 'fixes' the > problem. However, as you can see, the implementation of MWEReader > doesn't do anything at all, so I don't really see why it would cause this > trouble. > > Any ideas on what is causing this problem? > > Thanks, > > Egbert > > On Monday, July 28, 2014 05:14:39 PM Eddie Epstein wrote: > > Hi Egbert, > > > > The README file for UIMA-AS shows an application example with > > Deploy_MeetingDetectorTAE.xml.Does that run OK for you? > > > > Assuming yes, can you give more details about the scenario, perhaps > > the > > > explicit commands used? The descriptors used? > > > > Eddie > > > > > > > > On Mon, Jul 28, 2014 at 11:46 AM, Egbert van der Wal > > > > > wrote: > > > Hi, > > > > > > I'm trying to convert an existing and functional UIMA pipeline to a UIMA > > > AS pipeline. > > > > > > > > > > > > I'm getting there, I created deployment descriptors for the annotators > > and > > > > when running my application all individual annotators are launched > > > correctly. The composite analysis engine also loads fine but I'm getting > > a > > > > NullPointerException when calling initialize(deployCtx) on the > > > UimaAsEngine > > > on line 66. See the attached text document for the full exception. > > > > > > > > > > > > > > > > > > I found a similar issue in the bug tracker which was fixed in UIMA AS > > 2.3: > > > https://issues.apache.org/jira/browse/UIMA-1376 > > > > > > > > > > > > But this seems to arise in mergeTypeSystem and this does not seem > > to be > > > > the case in my situation. The line number is the same however. > > > > > > > > >
Re: UIMA AS NullPointerException in CasDefinition constructor
Hi Eddie,
Thanks for the suggestion. I have limited time to work on this so my
response may be slow now and again, but I'm still working on it. Your input
is very much appreciated!
First of all, the command:
runRemoteAsyncAE.sh/cmd tcp://localhost:61616
MeetingDetectorTaeQueue \
-d Deploy_MeetingDetectorTAE.xml \
-c
$UIMA_HOME/examples/descriptors/collection_reader/FileSystemCollectionR
eader.xml
completes without any errors, so the example seems to be running fine.
I've been fiddling around with it and I was able to pinpoint the problem to
the collection reader. I have a collection reader (subclassed from
CollectionReader_ImplBase) that is added to the AsynchronousEngine.
However, it does not seem to be the specific implementation.
I've reduced all code / annotators etc to a very basic set that still shows
the problem, where the AE only has one (very basic) annotator and the
Collection Reader actually doesn't do anything except stating that there's
nothing left to do.
I'll attach the Minimum Working Examples (or actually, not-working
examples) that I've constructed to pinpoint the problem.
Commenting out line 62 (the call to setCollectionReader) 'fixes' the
problem. However, as you can see, the implementation of MWEReader
doesn't do anything at all, so I don't really see why it would cause this
trouble.
Any ideas on what is causing this problem?
Thanks,
Egbert
On Monday, July 28, 2014 05:14:39 PM Eddie Epstein wrote:
> Hi Egbert,
>
> The README file for UIMA-AS shows an application example with
> Deploy_MeetingDetectorTAE.xml.Does that run OK for you?
>
> Assuming yes, can you give more details about the scenario, perhaps
the
> explicit commands used? The descriptors used?
>
> Eddie
>
>
>
> On Mon, Jul 28, 2014 at 11:46 AM, Egbert van der Wal
>
> wrote:
> > Hi,
> >
> > I'm trying to convert an existing and functional UIMA pipeline to a UIMA
> > AS pipeline.
> >
> >
> >
> > I'm getting there, I created deployment descriptors for the annotators
and
> > when running my application all individual annotators are launched
> > correctly. The composite analysis engine also loads fine but I'm getting
a
> > NullPointerException when calling initialize(deployCtx) on the
> > UimaAsEngine
> > on line 66. See the attached text document for the full exception.
> >
> >
> >
> >
> >
> > I found a similar issue in the bug tracker which was fixed in UIMA AS
2.3:
> >
> >
> >
> > https://issues.apache.org/jira/browse/UIMA-1376
> >
> >
> >
> > But this seems to arise in mergeTypeSystem and this does not seem
to be
> > the case in my situation. The line number is the same however.
> >
> >
> >
> > Any clues on where I should look for the solution? Are my descriptors
> > faulty? Is the Java code faulty? Or is this a bug in UIMA AS 2.4.0? How
> > can
> > I debug this issue?
> >
> >
> >
> > Thanks,
> >
> >
> >
> > Egbert
package nl.novay.keywordSpotter;
import java.io.File;
import java.util.HashMap;
import java.util.Map;
import org.apache.uima.aae.client.UimaAsynchronousEngine;
import org.apache.uima.adapter.jms.client.BaseUIMAAsynchronousEngine_impl;
public class MWE
{
public static void main(String [] args)
{
MWE engine = new MWE();
try
{
engine.initializeEngine();
}
catch (Exception e)
{}
}
private UimaAsynchronousEngine ae;
private MWEReader reader;
protected void initializeEngine() throws Exception
{
reader = new MWEReader();
// preparing map for use in deploying services
Map deployCtx = new HashMap();
deployCtx.put(UimaAsynchronousEngine.DD2SpringXsltFilePath, System.getenv("UIMA_HOME") + "/bin/dd2spring.xsl");
deployCtx.put(UimaAsynchronousEngine.SaxonClasspath, "file:" + System.getenv("UIMA_HOME") + "/saxon/saxon8.jar");
// Set up paths
String base_path = "./";
String deploy_path = base_path + "desc/deployment/";
String ae_path = base_path + "desc/analysis_engines/Deploy";
String engine = "MWEEngine.xml";
// Initialize the UIMA AS Engine
ae = new BaseUIMAAsynchronousEngine_impl();
System.setProperty("defaultBrokerURL", "tcp://localhost:61616");
// Iterate over all to-be-deployed annotators
String filenames [] = {
"DeployRegExp.xml"
};
for (String filename : filenames)
{
File file = new File(deploy_path + filename);
System.out.println("Deploying UIMA AS Annotator: " + file.getName());
ae.deploy(file.getAbsolutePath(), deployCtx);
System.out.println("Deployed UIMA AS Annotator: " + file.getName() + "\n\n\n\n");
}
System.out.println("Deploying UIMA AS Annotation Engine: " + engine);
ae.deploy(ae_path + engine, deployCtx);
System.out.p
