Thanks!! It really helps!!! I was using Guvnor M4 with drools-server M5. Now I’m upgrading everything to M5. And it works!!

One more question, when I try to build/deploy drools-server from source, where should the drl file be put (e.g., the properties file contains: file=test_rules1.drl)? I know that the rule agent configurations are to be placed in the “resources” directory. Should the drl file be put in the same dir? Or a specific place?

Thanks,

Jing

From: rules-dev-bounces@lists.jboss.org [mailto:rules-dev-bounces@lists.jboss.org] On Behalf Of David Sinclair
Sent: Monday, February 02, 2009 5:30 PM
To: Rules Dev List
Subject: Re: [rules-dev] Problems when using drools-server

Sorry, I should have stated that differently. The version you are getting from Guvnor, is different than the version the execution server has. Which version did u compile you packages on guvnor with?

On Mon, Feb 2, 2009 at 6:10 PM, Zhang Jing-A52198 <j.zhang@motorola.com> wrote:

In addition, I've changed testservice.properties as:

newInstance=true

url=http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/something/LATEST

Thanks a lot for your help!!!

Jing

From: rules-dev-bounces@lists.jboss.org [mailto:rules-dev-bounces@lists.jboss.org] On Behalf Of Zhang Jing-A52198
Sent: Monday, February 02, 2009 4:39 PM
To: Rules Dev List
Subject: RE: [rules-dev] Problems when using drools-server

The client file is as:

import java.io.*;

import java.net.*;

public class DroolsClient {

public static void main(String[] args) {

try {

InputStream inXML = DroolsClient.class.getResourceAsStream("sample_request.xml");

URL url = new URL("http://localhost:8080/drools-server/knowledgebase/testservice");

URLConnection conn = url.openConnection();

conn.setDoOutput(true);

// conn.setRequestProperty(key, value);

BufferedReader in = new BufferedReader(new InputStreamReader(inXML));

DataOutputStream outXML = new DataOutputStream(conn.getOutputStream());

String requestline;

while ((requestline = in.readLine()) != null) {

System.out.println(requestline);

outXML.writeBytes(requestline);

}

in.close();

outXML.flush();

outXML.close();

BufferedReader response = new BufferedReader(new InputStreamReader(conn.getInputStream()));

String responseLine;

while ((responseLine = response.readLine()) != null) {

System.out.println(responseLine);

}

response.close();

} catch (MalformedURLException ex) {

} catch (IOException ex) {

}

How to make it consistent to the drools-server?

Thanks,

Jing

From: rules-dev-bounces@lists.jboss.org [mailto:rules-dev-bounces@lists.jboss.org] On Behalf Of David Sinclair
Sent: Monday, February 02, 2009 4:26 PM
To: Rules Dev List
Subject: Re: [rules-dev] Problems when using drools-server

Looks like the version of drools on your server is different than your client. That would explain the class version issue

On Mon, Feb 2, 2009 at 5:19 PM, Zhang Jing-A52198 <j.zhang@motorola.com> wrote:

Hi All,

When I access the drools-server by URLConnection, I've always got such errors:

WARNING: RuleAgent(default) EXCEPTION (Mon Feb 02 16:09:46 CST 2009): org.drools.base.BaseEvaluator; local class incompatible: stream classdesc serialVersionUID = -7767879457606879276, local class serialVersionUID = -7149415669283058142. Stack trace should follow.

WARNING: java.io.InvalidClassException: org.drools.base.BaseEvaluator; local class incompatible: stream classdesc serialVersionUID = -7767879457606879276, local class serialVersionUID = -7149415669283058142

at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:562)

at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1583)

at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)

at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1583)

at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)

at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1732)

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)

at org.drools.rule.LiteralRestriction.readExternal(LiteralRestriction.java:66)

at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1792)

at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1751)

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)

at org.drools.rule.LiteralConstraint.readExternal(LiteralConstraint.java:67)

at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1792)

at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1751)

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)

at java.util.ArrayList.readObject(ArrayList.java:593)

at sun.reflect.GeneratedMethodAccessor28.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)

at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849)

at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)

at org.drools.rule.Pattern.readExternal(Pattern.java:115)

at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1792)

at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1751)

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)

at java.util.ArrayList.readObject(ArrayList.java:593)

at sun.reflect.GeneratedMethodAccessor28.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)

at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849)

at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)

at org.drools.rule.GroupElement.readExternal(GroupElement.java:57)

at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1792)

at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1751)

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)

at org.drools.rule.Rule.readExternal(Rule.java:170)

at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1792)

at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1751)

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)

at java.util.HashMap.readObject(HashMap.java:1029)

at sun.reflect.GeneratedMethodAccessor17.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)

at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849)

at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)

at org.drools.rule.MVELDialectRuntimeData.readExternal(MVELDialectRuntimeData.java:42)

at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1792)

at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1751)

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)

at java.util.HashMap.readObject(HashMap.java:1030)

at sun.reflect.GeneratedMethodAccessor17.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)

at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849)

at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)

at org.drools.rule.DialectRuntimeRegistry.readExternal(DialectRuntimeRegistry.java:41)

at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1792)

at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1751)

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)

at org.drools.rule.Package.readExternal(Package.java:197)

at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1792)

at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1751)

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)

at org.drools.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:189)

at org.drools.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:158)

at org.drools.agent.HttpClientImpl.fetchPackage(HttpClientImpl.java:47)

at org.drools.agent.URLScanner.readPackage(URLScanner.java:148)

at org.drools.agent.URLScanner.getChangeSet(URLScanner.java:120)

at org.drools.agent.URLScanner.loadPackageChanges(URLScanner.java:96)

at org.drools.agent.RuleAgent.checkForChanges(RuleAgent.java:410)

at org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java:362)

at org.drools.agent.RuleAgent.configure(RuleAgent.java:347)

at org.drools.agent.RuleAgent.init(RuleAgent.java:247)

at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:187)

at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:147)

at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:256)

at org.drools.server.KnowledgeStatelessServlet.getRuleBase(KnowledgeStatelessServlet.java:109)

at org.drools.server.KnowledgeStatelessServlet.doPost(KnowledgeStatelessServlet.java:71)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:738)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:831)

at org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:411)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:317)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198)

at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:288)

WARNING: org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:271)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:202)

at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)

at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)

at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:94)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:206)

at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)

at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)

at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571)

at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:150)

at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)

at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)

at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571)

at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080)

at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:272)

at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:637)

at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:568)

at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:813)

at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341)

at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263)

at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214)

at com.sun.enterprise.web.portunif.PortUnificationPipeline$PUTask.doTask(PortUnificationPipeline.java:380)

at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:265)

at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106)

WARNING: java.lang.NullPointerException

at org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java:363)