Drools Server 5.1.1 - can't run test.jsp
by OlliSee
Hi there.
I was trying to setup the Drools Server. As I understand, this is not a
server per se, its just the usual Drools with some framework plumbing. But I
appreciate not having to do that myself. But I can't get it to work.
I imported the .war file into my Eclipse and tried to deploy it to a few
application servers, but it didn't work.
I tried Tomcat 6/7, JBoss AS 4.2.2/4.2.3/5.0.1/5.1.0 (I know, they are just
using Tomcat, but I gave it a shot anyway...).
The .war deploys right I guess. But as soon as I try to run the test.jsp, I
get a lot of errors.
The log below is from Tomcat 6,...
31.01.2011 10:51:00 org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal
performance in production environments was not found on the
java.library.path:
C:\Programme\Java\jdk1.6.0_22\bin;.;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:/Programme/Java/jre6/bin/client;C:/Programme/Java/jre6/bin;C:/Programme/Java/jre6/lib/i386;C:\Programme\ActiveState
Komodo Edit 6\;C:\Programme\Mendeley
Desktop\wordPlugin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;%JAVA_HOME%\bin;C:\Programme\QuickTime\QTSystem\;C:\derby\bin
31.01.2011 10:51:00 org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNUNG: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting
property 'source' to 'org.eclipse.jst.jee.server:drools-5.1.1-server' did
not find a matching property.
31.01.2011 10:51:00 org.apache.coyote.AbstractProtocolHandler init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
31.01.2011 10:51:00 org.apache.coyote.AbstractProtocolHandler init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
31.01.2011 10:51:00 org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 616 ms
31.01.2011 10:51:00 org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
31.01.2011 10:51:00 org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.6
31.01.2011 10:51:01 org.apache.catalina.loader.WebappClassLoader
validateJarFile
INFO: validateJarFile(C:\Dokumente und Einstellungen\o.roess\Eigene
Dateien\Drools Server
Workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\drools-5.1.1-server\WEB-INF\lib\servlet-api-2.3.jar)
- jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class:
javax/servlet/Servlet.class
31.01.2011 10:51:11 org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring root WebApplicationContext
log4j:WARN No appenders could be found for logger
(org.springframework.web.context.ContextLoader).
log4j:WARN Please initialize the log4j system properly.
31.01.2011 10:51:18 org.apache.cxf.endpoint.ServerImpl initDestination
INFO: Setting the server's publish address to be /kservice/rest
31.01.2011 10:51:18 org.apache.cxf.transport.servlet.CXFServlet
updateContext
INFO: Load the bus with application context
31.01.2011 10:51:19 org.apache.cxf.transport.servlet.AbstractCXFServlet
replaceDestinationFactory
INFO: Servlet transport factory already registered
31.01.2011 10:51:19 org.apache.coyote.AbstractProtocolHandler start
INFO: Starting ProtocolHandler ["http-bio-8080"]
31.01.2011 10:51:19 org.apache.coyote.AbstractProtocolHandler start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
31.01.2011 10:51:19 org.apache.catalina.startup.Catalina start
INFO: Server startup in 18193 ms
Maybe there is already something wrong?
Ok then, this happens when I try to navigate to the test.jsp in my browser
31.01.2011 10:55:00 org.apache.cxf.phase.PhaseInterceptorChain
doDefaultLogging
WARNUNG: Interceptor for
{http://localhost:8080/drools-server-app/kservice/rest}WebClient has thrown
exception, unwinding now
org.apache.cxf.interceptor.Fault: Could not send Message.
at
org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:64)
at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:243)
at
org.apache.cxf.jaxrs.client.WebClient.doChainedInvocation(WebClient.java:615)
at
org.apache.cxf.jaxrs.client.WebClient.doInvoke(WebClient.java:596)
at org.apache.cxf.jaxrs.client.WebClient.invoke(WebClient.java:241)
at
org.apache.camel.component.cxf.jaxrs.CxfRsProducer.invokeHttpClient(CxfRsProducer.java:129)
at
org.apache.camel.component.cxf.jaxrs.CxfRsProducer.process(CxfRsProducer.java:71)
at
org.apache.camel.impl.converter.AsyncProcessorTypeConverter$ProcessorToAsyncProcessorBridge.process(AsyncProcessorTypeConverter.java:50)
at
org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)
at
org.apache.camel.processor.SendProcessor$2.doInAsyncProducer(SendProcessor.java:104)
at
org.apache.camel.impl.ProducerCache.doInAsyncProducer(ProducerCache.java:272)
at
org.apache.camel.processor.SendProcessor.process(SendProcessor.java:98)
at
org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)
at
org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)
at
org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)
at
org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:99)
at
org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)
at
org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:290)
at
org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:202)
at
org.apache.camel.processor.DefaultChannel.process(DefaultChannel.java:256)
at
org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:143)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:78)
at
org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)
at
org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)
at
org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)
at
org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)
at
org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)
at
org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)
at
org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:99)
at
org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)
at
org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:290)
at
org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:202)
at
org.apache.camel.processor.DefaultChannel.process(DefaultChannel.java:256)
at
org.apache.camel.processor.UnitOfWorkProcessor.process(UnitOfWorkProcessor.java:113)
at
org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)
at
org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)
at
org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)
at
org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:68)
at
org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)
at
org.apache.camel.component.direct.DirectProducer.process(DirectProducer.java:61)
at
org.apache.camel.processor.UnitOfWorkProcessor.process(UnitOfWorkProcessor.java:99)
at
org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:91)
at
org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:85)
at
org.apache.camel.processor.UnitOfWorkProducer.process(UnitOfWorkProducer.java:63)
at
org.apache.camel.impl.ProducerCache$1.doInProducer(ProducerCache.java:333)
at
org.apache.camel.impl.ProducerCache$1.doInProducer(ProducerCache.java:304)
at
org.apache.camel.impl.ProducerCache.doInProducer(ProducerCache.java:208)
at
org.apache.camel.impl.ProducerCache.sendExchange(ProducerCache.java:303)
at org.apache.camel.impl.ProducerCache.send(ProducerCache.java:171)
at
org.apache.camel.impl.DefaultProducerTemplate.send(DefaultProducerTemplate.java:114)
at
org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:118)
at
org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:135)
at
org.apache.camel.impl.DefaultProducerTemplate.requestBody(DefaultProducerTemplate.java:283)
at
org.apache.camel.impl.DefaultProducerTemplate.requestBody(DefaultProducerTemplate.java:313)
at org.drools.server.Test.execute(Test.java:68)
at org.drools.server.Test.send(Test.java:60)
at org.apache.jsp.test_jsp._jspService(test_jsp.java:77)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:417)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:306)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:550)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:380)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:166)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:288)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.io.IOException: IOException invoking
http://localhost:8080/drools-server-app/kservice/rest/execute: HTTP response
'404: Not Found'
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at
org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.mapException(HTTPConduit.java:2058)
at
org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:2043)
at
org.apache.cxf.transport.AbstractConduit.close(AbstractConduit.java:66)
at
org.apache.cxf.transport.http.HTTPConduit.close(HTTPConduit.java:639)
at
org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:62)
... 79 more
Caused by: java.io.IOException: HTTP response '404: Not Found'
at
org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponseInternal(HTTPConduit.java:2194)
at
org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponse(HTTPConduit.java:2134)
at
org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1988)
... 82 more
Anyone got an idea?
Thanks!
Kind regards
Oliver
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14 years, 4 months
Setting typesafe in decision tables
by abr
In Drools 5.3, is it possible to add the typesafe notation to an object
within a decision table?
The idea behind this question is to be able to define conditions on fields
that cannot be resolved at compile time but that can be at runtime.
(e.g. define conditions on event.payload.field1 where event.payload is a
java.lang.Object and field1 an attribute of the object's class set in
event.payload at runtime)
I've tried to disable MVEL strict mode but without success.
Note: this worked in Drools 5.1 because of the more permissive parsing
method.
By the way, if you have other ideas that should work, I opened to them :-)
Best,
Alexis
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14 years, 4 months
Dynamic Fact(field) Generation in Declarative Model
by srinivasasanda
Hi All,
Please help on this issue
I created a declarative model Person in personDetails package in Drools
Gunvor with 2 fields(age,amount).Now,I need to insert one field with name
gender and datatype String into that declarative model through POJO
class..Here is my code
RuleAgent agent = RuleAgent.newRuleAgent("/Guvnor.properties");
RuleBase rb = agent.getRuleBase();
WorkingMemory workingMemory = rb.newStatefulSession();
PackageBuilder pkgBuilder=new PackageBuilder(rb);
FactType personType = rb.getFactType( "persondetails.Person" );
ClassDefinition cDefinition=(ClassDefinition)
rb.getFactType("persondetails.Person");
FieldDefinition gen = new FieldDefinition( "gender",
"java.lang.String" );
product.setKey(true);
cDefinition.addField(product);
workingMemory.insert(cDefinition);
FactHandle fc=workingMemory.getFactHandle(cDefinition);
workingMemory.update(fc, cDefinition);
rb.newStatelessSession().execute(new Object[] {cDefinition});
}
String s1=cDefinition.getField(0).getTypeName();
String name1=cDefinition.getField(0).getName();
System.out.println(s1);
System.out.println(name1);
String s2=cDefinition.getField(1).getTypeName();
String name2=cDefinition.getField(1).getName();
System.out.println(s2);
System.out.println(name2);
String s3=cDefinition.getField(2).getTypeName();
String name3=cDefinition.getField(2).getName();
System.out.println(s3);
System.out.println(name3);
Output as Age---Java.lang.Integer
Amount-java.lang.Integer
Gender--Java.lang.String..
And when i am printing
It is executing successfuly first time without errors.but i could not find
gender in declarative model.It is failed to inserting.Can anyone help me in
this..plZzzzzz...I was struggling with this....
When Iam executing second time it is displaying as Exception:couldnot find
gender in declarative model..It means iam unable to commit Data into
Server..(Drools guvnor Model)
Please help on this....
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14 years, 4 months
Planner 5.3.Final - "presumedScore is corrupted" when using "update" on the rules working memory
by guyramirez
I am looking into Planner for a schedule assignment business case.
I created a move factory, got the local search phase set up and quicly ran
into a "presumedScore is corrupted because it is not the realScore" error.
As a work around, I changed my Move::doMove(..) implementation to "retract"
then "insert" rather than "update" the new updated planning entity and the
issue went away.
Then I worked on setting a construction heuristic and I again ran into the
same error. By applying a local code patch to the
PlanningValueWalker::changeWorkingValue(..) method to also "retract" and
"insert" rather than "update" also fixed the issue.
I also tried to correctly implement the hashCode() and equals(..) methods on
my planning entity (as mentioned in Drools Expert documentation) as well as
use the default implementation of those methods (as in the nurse rostering
example) with the same unsuccessful results.
I must mention than I am able to run the nurse rostering example without any
issues.
Could someone maybe point me to the right direction on why "update" does not
work for me? I can provide detailed information if needed.
Thanks,
Guy
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14 years, 4 months
'else' in rule
by snehils
Hi All,
I want to take action when the condition in WHEN fails. Something like as
follows:
WHEN
<Condition>
THEN
<Action>
/ELSE
<Action when Condition fails>/
Is it possible to have else part in rule? Or I have to make another rule for
failed condition?
I am using Drools 5.1.0 version.
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14 years, 4 months
Drools Ruleflow persistence on MySQL - invalid SQL query generated
by victorC
Hi,
After few days of struggling on Drools Ruleflow persistence setup on MySQL I
finally came to the point when I feel it almost works but I am getting an
MySQL error.
I see the following SQL query in the log /it does not look correct/ which
is followed by the MySQL error message.
select processins0_.InstanceId as col_0_0_ from ProcessInstanceInfo
processins0_, EventTypes eventtypes1_ where
processins0_.InstanceId=eventtypes1_.InstanceId and (? in (.))
WARN [JDBCExceptionReporter] SQL Error: 1064, SQLState: 42000
ERROR [JDBCExceptionReporter] You have an error in your SQL syntax; check
the manual that corresponds to your MySQL server version for the right
syntax to use near '))' at line 1
I googled for similar symptoms but with no success.
Will be very grateful for any support, hint, etc!
My setup is:
JBoss 4.2.3.GA
Hibernate 3.2.4.sp1
JBoss Seam 2.2.0.GA
Drools 5.1.1
MySQL 5.1.41 / mysql-connector 5.0.7
persistence.xml
...
<persistence-unit name="org.drools.persistence.jpa" transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>java:/edento-MySQL-ds-XA</jta-data-source>
<mapping-file>META-INF/orm.xml</mapping-file>
<class>org.drools.persistence.session.SessionInfo</class>
<class>org.drools.persistence.processinstance.ProcessInstanceInfo</class>
<class>org.drools.persistence.processinstance.WorkItemInfo</class>
<class>org.drools.persistence.processinstance.variabletypes.VariableInstanceInfo</class>
<class>org.drools.persistence.processinstance.variabletypes.JPAPersistedVariable</class>
<class>org.drools.persistence.processinstance.variabletypes.SerializablePersistedVariable</class>
<properties>
<property name="hibernate.dialect"
value="org.hibernate.dialect.MySQL5Dialect"/>
<property name="hibernate.max_fetch_depth" value="3"/>
<property name="hibernate.hbm2ddl.auto" value="update"/>
<property name="hibernate.show_sql" value="true"/>
<property name="hibernate.transaction.manager_lookup_class"
value="org.hibernate.transaction.JBossTransactionManagerLookup"/>
</properties>
</persistence-unit>
...
datasources-ds.xml
…
<xa-datasource>
<jndi-name>MySQL-ds-XA</jndi-name>
<xa-datasource-property
name="URL">jdbc:mysql://localhost:3306/db</xa-datasource-property>
<xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</xa-datasource-class>
<user-name>root</user-name>
<password></password>
<track-connection-by-tx>true</track-connection-by-tx>
<exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter</exception-sorter-class-name>
<min-pool-size>1</min-pool-size>
<max-pool-size>10</max-pool-size>
<idle-timeout-minutes>10</idle-timeout-minutes>
<metadata>
<type-mapping>mySQL</type-mapping>
</metadata>
</xa-datasource>
...
orm.xml
<?xml version="1.0" encoding="UTF-8"?>
<entity-mappings xmlns="http://java.sun.com/xml/ns/persistence/orm"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence/orm orm_1_0.xsd"
version="1.0">
<named-query name="ProcessInstancesWaitingForEvent">
<query>
select
processInstanceInfo.processInstanceId
from
ProcessInstanceInfo processInstanceInfo
where
:type in (processInstanceInfo.eventTypes)
</query>
</named-query>
</entity-mappings>
The bean java code – just starts the process and then immediately attempts
to load it from the database.
EntityManagerFactory emf =
Persistence.createEntityManagerFactory("org.drools.persistence.jpa");
Environment env = KnowledgeBaseFactory.newEnvironment();
env.set(EnvironmentName.ENTITY_MANAGER_FACTORY, emf);
env.set(EnvironmentName.GLOBALS, new MapGlobalResolver());
StatefulKnowledgeSession ksession =
JPAKnowledgeService.newStatefulKnowledgeSession(kbase, null, env);
WorkflowProcessInstance processInstance =
(WorkflowProcessInstance)ksession.startProcess("TestProcess");
//retrieving...
ksession =
JPAKnowledgeService.loadStatefulKnowledgeSession(ksession.getId(), kbase,
null, env);
processInstance =
(WorkflowProcessInstance)ksession.getProcessInstance(processInstance.getId());
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14 years, 4 months
duration attribute & other rule language features issue
by Prashant Badhe
Hi,
we were using drools engine 5.0.1 version with rules having 'duration',
'agenda-group' attributes and now we want to upgrade drools engine to 5.1.1
or latest 5.3.0 but we find 'duration' feature not working. What are the
equivalents of those features in 5.1.1 and in 5.3.0?
>From drools-expert document, 'duration' seems as deprecated with 'timer'.
But even 'timer' is not working. Putting 'timer' attribute as:
rule "test timer attribute"
agenda-group "enrichment"
auto-focus true
no-loop
salience 140
timer ( int: 5s )
//duration ( 5000 )
when
......
then
......
end
gives "Error: java.lang.ArrayStoreException" Drools compilation error.
"timer ( 5s )" compiles, but the rule never fires.
We are also planning to use @expires in declare. But facts are not seems to
be expiring.
What am I missing here? What are the equivalent for 'duration' in
5.1.1/5.3.0 and how to use @expires in declare?
Please point us to some sample rules that uses these semantics and are
working.
Thanks in advance,
Prashant B.
14 years, 4 months
