[rules-users] Dynamic Loading of Rules from BRMS
Esteban Aliverti
esteban.aliverti at gmail.com
Sun Jun 27 18:03:38 EDT 2010
Hi,
When you execute:
kagent.applyChangeSet( ResourceFactory.newUrlResource("
http://localhost:8280/jboss-brms/org.drools.guvnor.Guvnor/Guvnor.html"));
you need to point to your change-set.xml file and not to guvnor.
Inside you change-set you need to point to each resource you want the agent
take care of. In your example the first two resources have the same URL. It
doesn't look right.
Best,
2010/6/27 jillika iyer <jillika at gmail.com>
> hi guys,
>
> I am trying to upload my rules from jboss-brms to my eclipse in order to
> run it against the working memory.
> The following is my code and change-set.xml file and I am getting the
> following error stack ( which is a java error but just attaching it for
> giving more info).
>
>
> I have started the jboss-server and it is connected correctly.
>
> I am getting a java based error which says that it is unable to parse
> change-set.xml and unable to connect to the server.
>
> I just want to know if I am not the right path for creating the required
> change-set.xml file due to which I am getting the java connection error.
>
>
> I have just specified the url path in my change-set file and the types of
> files it should be looking out for.
>
> What else do I need to incorporate for it to connect to the server???
>
> Please help me. I am relatively new to Drools.
>
> Code in my Runner class:
>
> KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
> ResourceFactory.getResourceChangeScannerService().start();
> ResourceFactory.getResourceChangeNotifierService().start();
>
> // creating a knowledge agent
> KnowledgeAgentConfiguration aconf =
> KnowledgeAgentFactory.newKnowledgeAgentConfiguration();
>
> KnowledgeAgent kagent = KnowledgeAgentFactory.newKnowledgeAgent(
> "MyAgent", kbase,aconf );
> kagent.applyChangeSet( ResourceFactory.newUrlResource("
> http://localhost:8280/jboss-brms/org.drools.guvnor.Guvnor/Guvnor.html"));
> StatefulKnowledgeSession ksession =
> kagent.getKnowledgeBase().newStatefulKnowledgeSession();
>
> // StatelessSession workingMemory = ruleBase.newStatelessSession();
> ArrayList<Ip> ipList = new ArrayList<Ip>();
>
> ksession.setGlobal("ipList", ipList);
> ksession.insert(al);
> ksession.fireAllRules();
> ksession.dispose();
>
>
>
> my change-set.xml file:
>
> <change-set xmlns='http://drools.org/drools-5.0/change-set'
> xmlns:xs='http://www.w3.org/2001/XMLSchema-instance'
> xs:schemaLocation='
> http://drools.org/drools-5.0/change-set.xsd' >
> <add>
> <!-- Add for specifying URLs-->
> <resource source='http://localhost:8280/jboss-brms' type='DRL' />
> <resource source='http://localhost:8280/jboss-brms' type='DSLR' />
> <resource source='http://localhost:8280/jboss-brmss/sample-dsl.dsl'
> type='DSL' />";
> <resource source='http://localhost:8280/jboss-brms' type='BRL' />
> </add>
> </change-set>
>
>
>
>
> error stack:
>
> java.lang.RuntimeException: Unable to parse ChangeSet
> at
> org.drools.agent.impl.KnowledgeAgentImpl.getChangeSet(KnowledgeAgentImpl.java:223)
> at
> org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:109)
> at com.org.RuleRunner.runStatelessRules(RuleRunner.java:156)
> at com.org.RulesTest.main(RulesTest.java:38)
> Caused by: java.net.SocketException: Network is unreachable: connect
> at java.net.PlainSocketImpl.socketConnect(Native Method)
> at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
> at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
> at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
> at java.net.Socket.connect(Socket.java:524)
> at java.net.Socket.connect(Socket.java:474)
> at sun.net.NetworkClient.doConnect(NetworkClient.java:157)
> at sun.net.www.http.HttpClient.openServer(HttpClient.java:388)
> at sun.net.www.http.HttpClient.openServer(HttpClient.java:523)
> at sun.net.www.http.HttpClient.<init>(HttpClient.java:231)
> at sun.net.www.http.HttpClient.New(HttpClient.java:304)
> at sun.net.www.http.HttpClient.New(HttpClient.java:321)
> at
> sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:839)
> at
> sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:791)
> at
> sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:716)
> at
> sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:960)
> at
> com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(XMLEntityManager.java:973)
> at
> com.sun.org.apache.xerces.internal.impl.XMLEntityManager.startEntity(XMLEntityManager.java:905)
> at
> com.sun.org.apache.xerces.internal.impl.XMLEntityManager.startDTDEntity(XMLEntityManager.java:872)
> at
> com.sun.org.apache.xerces.internal.impl.XMLDTDScannerImpl.setInputSource(XMLDTDScannerImpl.java:282)
> at
> com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$DTDDispatcher.dispatch(XMLDocumentScannerImpl.java:1021)
> at
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:368)
> at
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:834)
> at
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764)
> at
> com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148)
> at
> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1242)
> at javax.xml.parsers.SAXParser.parse(SAXParser.java:375)
> at
> org.drools.xml.ExtensibleXmlParser.read(ExtensibleXmlParser.java:255)
> at
> org.drools.xml.ExtensibleXmlParser.read(ExtensibleXmlParser.java:170)
> at org.drools.xml.XmlChangeSetReader.read(XmlChangeSetReader.java:48)
> at
> org.drools.agent.impl.KnowledgeAgentImpl.getChangeSet(KnowledgeAgentImpl.java:221)
> ... 3 more
>
> Please help me.
>
> Thank you
> Jill
>
>
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>
>
--
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Esteban Aliverti
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