[rules-users] Insert a fact into drools server from a web application or java application

[Wolfgang Laun]

The error message suggests to me that there is no class ObjectFactory, or
not where it ought to be, for JAXB to be happy. If you JAXB-annotate your
Java classes by hand, you'll also have to write an ObjectFactory.java.

A little info can be found in my JAXB
tutorial<http://jaxb.java.net/tutorial/section_6_2_4-The-Object-Factory-XmlRegistry-XmlElementDecl.html#The%20Object%20Factory:%20XmlRegistry,%20XmlElementDecl>.
Also, you could apply xjc to an XML Schema to learn how it's done ;-)

-W


On 2 August 2011 19:11, kkelleyjr <karl.kelley.jr at gmail.com> wrote:

> Update:
>
>
> So I have the following as code that I found in a blog by salaboy...
>
> List<String> myDomainClasses = new ArrayList<String>();
> myDomainClasses.add("com.test.TestFact");
>
>
> // I need to create a JAXB context including my domain classes
> // to be able to create a JAXB representation to send to the server
>
> JAXBContext jaxbContext =
> DroolsJaxbContextHelper.createDroolsJaxbContext(myDomainClasses, null);
>
> TestFact test = new TestFact();
>
>
>
> // Once I get my object I need to create
> // some commands to execute on the server
> // Here I include a reference to the session that
> // I define in my Knowledge Context Profile
>
> List<Command> listOCommand = new ArrayList<Command>();
> listOCommand.add(new InsertObjectCommand(test, "testFact"));
>
> BatchExecutionCommand cmd = CommandFactory.newBatchExecution(listOCommand,
> "ksession1");
>
> // Once I get all I need to send to the server,
> // I need to use the JAXB context
> // to obtain the JAXB representation.
>
> StringWriter xmlReq = new StringWriter();
> javax.xml.bind.Marshaller marshaller = jaxbContext.createMarshaller();
> marshaller.setProperty("jaxb.formatted.output", true);
> marshaller.marshal(cmd, xmlReq);
>
> // I create a HTTPClient to interact with the
> // server via REST (HTTP POST)
>
> DefaultHttpClient httpClient = new DefaultHttpClient();
>
> HttpParams params = new BasicHttpParams();
> params.setParameter(ClientPNames.DEFAULT_HOST, "localhost");
>
> //Print the JAXB xml that we will send to the server
> System.out.println(xmlReq.toString());
>
> // Send the Commands JAXB representation to the server for execution
> HttpPost postMethod = new
> HttpPost("http://localhost:8080/MyService/kservice/rest/execute");
>
> HttpParams p = new BasicHttpParams();
> p.setParameter("command",  xmlReq.toString());
> postMethod.setParams(p);
>
> HttpResponse response = httpClient.execute(postMethod);
>
> System.out.println(response);
>
>
> Now I had to change a few things from the blog but it should be basically
> the same as the post... I get the following exception...
>
> 1872701 [http-8080-1] ERROR processor.DefaultErrorHandler  - Failed
> delivery
> for exchangeId: 839c6b11-3c2a-4106-9118-56417edfbab1. Exhausted after
> delivery attempt: 1 caught: java.io.IOException: "null" doesnt contain
> ObjectFactory.class or jaxb.index
> java.io.IOException: "null" doesnt contain ObjectFactory.class or
> jaxb.index
>        at
> org.apache.camel.util.IOHelper.createIOException(IOHelper.java:80)
>        at
> org.apache.camel.util.IOHelper.createIOException(IOHelper.java:72)
>        at
>
> org.apache.camel.converter.jaxb.JaxbDataFormat.unmarshal(JaxbDataFormat.java:151)
>        at
>
> org.apache.camel.processor.UnmarshalProcessor.process(UnmarshalProcessor.java:51)
>
>
> Thanks for any advice on this matter...
>
>
> --
> View this message in context:
> http://drools.46999.n3.nabble.com/Insert-a-fact-into-drools-server-from-a-web-application-or-java-application-tp3214229p3219571.html
> Sent from the Drools: User forum mailing list archive at Nabble.com.
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