PRoblem testing EMML samples

Well, first a basic question -- did you install the mashup samples that come with OMA EMML?

Hi Sarah,

Thanks for your reply.

Actually, I solved the problem, it was the JVM version, I changed and it works.

Thanks.

Best regards.

Hello,

I also have the same problem executing EMML even samples from OMA site.

I´m using tomcat 6 and java 6.

I have following exactly the EMML Reference Runtime Engine steps:

1. Deploy emml.war
2. Copy emmlclient.class to web-apps-home/emml/WEB-INF/classes folder
   
3. Copy samples (emml files) to web-apps-home/emml/WEB-INF/classes folder
4. Add the new mashup in the mashup.xml file
5. execute the command java emmlclient url-for-mashup
6.  
7. I tried other tomcat and java version but didn't work

Please help me!

Thanks in advance.

Regards,

Flávio

 Hi,

Can you post the full stack trace & error message when executing the sample.

Hey Raj,

follows the error:

java emmlclient http://localhost:8080/emml/twitter.emml
Invoking URL: http://localhost:8080/emml/twitter.emml
Exception in thread "main" java.io.IOException: Server returned HTTP response code: 500 for URL: http://localhost:8080/emml/twitter.emml
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
        at emmlclient.main(emmlclient.java:24)

I also got this error in tomcat log file:

19/08/2012 14:11:25 org.apache.catalina.core.StandardWrapperValve invoke
GRAVE: Allocate exception for servlet EMMLServlet
java.net.MalformedURLException
    at java.net.URL.<init>(URL.java:601)
    at java.net.URL.<init>(URL.java:464)
    at java.net.URL.<init>(URL.java:413)
    at org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown Source)
    at org.apache.xerces.impl.XMLVersionDetector.determineDocVersion(Unknown Source)
    at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
    at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
    at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
    at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
    at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)
    at org.oma.emml.utils.XMLConversionUtils.getDocument(XMLConversionUtils.java:71)
    at org.oma.emml.me.commons.EngineUtils.getRegisteredMashupServices(EngineUtils.java:200)
    at org.oma.emml.me.runtime.MashupLoader.loadMashups(MashupLoader.java:53)
    at org.oma.emml.me.runtime.MashupLoader.<init>(MashupLoader.java:45)
    at org.oma.emml.me.runtime.EMMLService.<init>(EMMLService.java:46)
    at org.oma.emml.me.runtime.EMMLServiceFactory.createService(EMMLServiceFactory.java:43)
    at org.oma.emml.controller.EMMLServlet.init(EMMLServlet.java:30)
    at javax.servlet.GenericServlet.init(GenericServlet.java:212)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1173)
    at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:809)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:129)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
    at java.lang.Thread.run(Thread.java:662)

Thanks for your help.

Best,

Flávio

 Hi Flavio,

#1 Can you confirm if the samples (all *.emml files) have been deployed in webapps/emml/WEB-INF/classes folder ? (i.e., NOT in webapps/emml/WEB-INF )

#2 If #1 is ok,  enable DEBUG logging in WEB-INF/classes/log4j.properties i.e.,

log4j.rootLogger=DEBUG, stdout

In the log file, you should see debug message that loads each EMML script i.e.,

2012-08-20 16:09:54,030 INFO [org.oma.emml.me.runtime.MashupLoader] - MashupLoader : loading mashups from mashups.xml2012-08-20 16:09:54,049 INFO [org.oma.emml.me.commons.EngineUtils] - Loading Script : rssfilter.emml

..........

The above log message can help us in locating which EMML script fails to load.

hth.