12:36 a.m.
TC ONG [https://community.jboss.org/people/devilkazuya99] created the discussion
"Unknown resource type: null when call kagent.applyChangeSet( resource ) the second
time."
To view the discussion, visit: https://community.jboss.org/message/722709#722709
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URL url = new URL(CHANGE_SET_URL);
UrlResource resource = (UrlResource) ResourceFactory.newUrlResource( url );
KnowledgeAgentConfiguration agentConfig =
KnowledgeAgentFactory.newKnowledgeAgentConfiguration();
agentConfig.setProperty("drools.agent.newInstance",
"true");
agentConfig.setProperty("drools.agent.scanDirectories",
"false");
KnowledgeAgent kagent = KnowledgeAgentFactory.newKnowledgeAgent(
"MyKnowledgeAgent", agentConfig );
KnowledgeAgentEventListener kaListener = new KnowledgeAgentEventListener()
{
@Override
public void resourceCompilationFailed(ResourceCompilationFailedEvent
arg0) {
logger.debug("resourceCompilationFailed");
}
@Override
public void knowledgeBaseUpdated(KnowledgeBaseUpdatedEvent arg0) {
logger.debug("knowledgeBaseUpdated");
}
@Override
public void beforeResourceProcessed(BeforeResourceProcessedEvent arg0)
{
logger.debug("beforeResourceProcessed");
}
@Override
public void beforeChangeSetProcessed(BeforeChangeSetProcessedEvent
arg0) {
logger.debug("beforeChangeSetProcessed");
}
@Override
public void beforeChangeSetApplied(BeforeChangeSetAppliedEvent arg0)
{
logger.debug("beforeChangeSetApplied");
}
@Override
public void afterResourceProcessed(AfterResourceProcessedEvent arg0)
{
logger.debug("afterResourceProcessed");
}
@Override
public void afterChangeSetProcessed(AfterChangeSetProcessedEvent arg0)
{
logger.debug("afterChangeSetProcessed");
}
@Override
public void afterChangeSetApplied(AfterChangeSetAppliedEvent arg0) {
logger.debug("afterChangeSetApplied");
}
};
kagent.addEventListener(kaListener);
kagent.applyChangeSet( resource );
kagent.monitorResourceChangeEvents(true);
The code above is ok but when I call
kagent.applyChangeSet( resource );
again then I get
Exception in thread "Thread-3" java.lang.RuntimeException: Unknown resource
type: null
at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:686)
at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:37)
at
org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(KnowledgeAgentImpl.java:712)
at
org.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase(KnowledgeAgentImpl.java:1002)
at
org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgentImpl.java:785)
at
org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(KnowledgeAgentImpl.java:657)
at
org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:190)
at
org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:169)
at
com.geneoz.procedureengine.KnowledgeAgentTest$ResourcePoller.run(KnowledgeAgentTest.java:68)
at java.lang.Thread.run(Thread.java:680)
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