[kepler-dev] Ecogrid Web Services

[David Sledge]

Going by the file lib/config.xml the endpoint URL for Metacat is 
<http://ecogrid.ecoinformatics.org/knb/services/EcoGridQuery>.

Yesterday, I tried using Kepler on my home computer and I a little more 
insight into the problem.  I changed a line in the log4j.properties file 
on my work machine from:

log4j.rootLogger=WARN, CONSOLE, R

to:

log4j.rootLogger=DEBUG, R

so I could see if kepler was able to download EML metadata help figure 
out why the webapp could not.  At home I forgot to make the change to 
log4j.properties, and I was able to download the metadata just fine.  Of 
course when I looked in the Kepler logs, I realized I forgot the change, 
so I changed the file to match my work machine.  When I ran Kepler 
again, I got the exception.

This morning I changed the log4j.properties file on my work machine back 
to logging warnings (but not to the console), and predictably I was able 
to download Metadata.

David

Jing Tao wrote:
> Hi, David:
>
> Do your, deana and laura's kepler point to same ecogrid service (the 
> default one in NCEAS)? It is weird since we don't have the problem.
>
> Jing
>
> Jing Tao
> National Center for Ecological
> Analysis and Synthesis (NCEAS)
> 735 State St. Suite 204
> Santa Barbara, CA 93101
>
> On Wed, 19 Apr 2006, David Sledge wrote:
>
>> Date: Wed, 19 Apr 2006 14:04:54 -0600
>> From: David Sledge <dsledge at lternet.edu>
>> To: seek-dev at ecoinformatics.org, kepler list 
>> <kepler-dev at ecoinformatics.org>
>> Subject: [kepler-dev] Ecogrid Web Services
>>
>> I'm getting an exception every time I try to download metadata from
>> Metacat using the EcoGrid Services API.
>>
>> In Kepler the exception is:
>>
>> java.lang.ClassCastException: java.lang.String
>>    at
>> org.ecoinformatics.ecogrid.queryservice.stub.EcoGridQueryLevelOneServiceStub.get(EcoGridQueryLevelOneServiceStub.java:310) 
>>
>>    at
>> org.ecoinformatics.ecogrid.queryservice.EcogridGetToStreamClient.get(EcogridGetToStreamClient.java:81) 
>>
>>    at
>> org.ecoinformatics.seek.datasource.EcogridDataCacheItem.getDataItemFromEcoGrid(EcogridDataCacheItem.java:285) 
>>
>>    at
>> org.ecoinformatics.seek.datasource.EcogridMetaDataCacheItem.doWork(EcogridMetaDataCacheItem.java:67) 
>>
>>    at
>> org.kepler.objectmanager.cache.DataCacheObject.run(DataCacheObject.java:455) 
>>
>>    at java.lang.Thread.run(Unknown Source)
>>
>> If I use the ecogrid webapp it's:
>>
>> java.lang.ClassCastException: java.lang.String
>>     at 
>> org.ecoinformatics.ecogrid.queryservice.stub.EcoGridQueryLevelOneServiceStub.get(Unknown 
>> Source)
>>     at 
>> org.ecoinformatics.ecogrid.queryservice.EcogridGetToStreamClient.get(Unknown 
>> Source)
>>     at 
>> org.ecoinformatics.ecogrid.web.recordfetchers.EML2RecordFetcher.get(EML2RecordFetcher.java:26) 
>>
>>     at 
>> org.ecoinformatics.ecogrid.web.action.ShowRecordAction.execute(ShowRecordAction.java:80) 
>>
>>     at 
>> org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419) 
>>
>>     at 
>> org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224) 
>>
>>     at 
>> org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
>>     at 
>> org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
>>     at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
>>     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>>     at 
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) 
>>
>>     at 
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) 
>>
>>     at 
>> com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:118) 
>>
>>     at 
>> com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:52) 
>>
>>     at 
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) 
>>
>>     at 
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) 
>>
>>     at 
>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) 
>>
>>     at 
>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) 
>>
>>     at 
>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) 
>>
>>     at 
>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) 
>>
>>     at 
>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) 
>>
>>     at 
>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) 
>>
>>     at 
>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) 
>>
>>     at 
>> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) 
>>
>>     at 
>> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) 
>>
>>     at 
>> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) 
>>
>>     at 
>> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) 
>>
>>     at java.lang.Thread.run(Thread.java:595)
>>
>> I'm using the same version of Kepler as Deana and Laura (nightly build
>> 20060419) and they're able to download the metadata.  The version of the
>> ecogrid services API that the webapp uses is what was in CVS on 4/17.
>>
>> David
>> _______________________________________________
>> Kepler-dev mailing list
>> Kepler-dev at ecoinformatics.org
>> http://mercury.nceas.ucsb.edu/ecoinformatics/mailman/listinfo/kepler-dev
>>
>>