[rules-users] KnowledgeAgent exception while trying to deserialize KnowledgeDefinitionsPackage

[Joe White]

It is a bit dated now (we're on 5.0.1) but this works on that release:
 
   				  FileOutputStream fos = new
FileOutputStream(drlcFile);
		    	    	  ObjectOutputStream oos = new
ObjectOutputStream(fos);
		    	        oos.writeObject(pkg);
		    	        oos.close();

Joe

-----Original Message-----
From: rules-users-bounces at lists.jboss.org
[mailto:rules-users-bounces at lists.jboss.org] On Behalf Of lhorton
Sent: Thursday, June 16, 2011 10:28 AM
To: rules-users at lists.jboss.org
Subject: Re: [rules-users] KnowledgeAgent exception while trying to
deserialize KnowledgeDefinitionsPackage

I revised my method to write a single package and to use the Drools
stream
classes:

		KnowledgePackage pkg = packages.iterator().next();
		DroolsObjectOutputStream out;
		try {
			out = new DroolsObjectOutputStream(new
FileOutputStream(outFilePath));
			DroolsStreamUtils.streamOut(out, pkg,
Boolean.TRUE);
			out.close();
		} catch (IOException ex) {
			logger.debug(ex.getMessage());
		}

I tested this with the compression option and without, but knowledge
agent
still cannot deserialize.  I now get exception: 
Caused by: java.io.OptionalDataException
        at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1339)
        at
java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
        at
org.drools.core.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:2
05)
        at
org.drools.core.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:1
74)
        at
org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(Knowl
edgeAgentImpl.java:653)

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