[rules-users] Dynamic Loading of Rules from BRMS
Mahalakshmi
mr2809 at nyu.edu
Sun Jun 27 21:08:39 EDT 2010
Hi,
Thank you so much. That cleared up a lot of confusion!
2010/6/27 Esteban Aliverti <esteban.aliverti at gmail.com>
> Can I just point the URL to my package in the jboss-brms which I need to
> access instead of specifying each rule?
> Yes you can. If you are accessing the binary representation of your
> package, you need to use PKG resource type.
>
> And if I end up adding a new rule at runtime without modifying an existing
> rule it should also be detected right?
> Yes. Always that Knowledge Agent is working as expected :P
>
> Best,
>
> 2010/6/27 Mahalakshmi <mr2809 at nyu.edu>
>
> Hi,
>>
>> Thanks for the quick response.
>>
>> Can I just point the URL to my package in the jboss-brms which I need to
>> access instead of specifying each rule?
>>
>> And if I end up adding a new rule at runtime without modifying an existing
>> rule it should also be detected right?
>>
>> thank you.
>> Jill
>>
>>
>> 2010/6/27 Esteban Aliverti <esteban.aliverti at gmail.com>
>>
>> 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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>>>> rules-users at lists.jboss.org
>>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>>
>>>>
>>>
>>>
>>> --
>>> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
>>>
>>> Esteban Aliverti
>>>
>>> _______________________________________________
>>> rules-users mailing list
>>> rules-users at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>
>>>
>>
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>> https://lists.jboss.org/mailman/listinfo/rules-users
>>
>>
>
>
> --
> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
>
> Esteban Aliverti
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
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