RuleFlow and facts
by paf84
Hello,
I try to understand how to use Drolls.
It's not the first time i work with rules (i know JRules).
I have a probleme when i execute my ruleflow.
I have some rules which belong to different ruleflow-group.
I have put my ruleflow-group in my ruleflow.
THe probleme is that my ruleflow never execute the "then" part of my rules.
If i delete le ruleflow-group of my rules and i execute the drl file, all my
"then" part are executed.
I think i have a problem to give my facts to the ruleflow...
Is somebody can help me ?
thx!!
Pierre
my .java
KnowledgeBase kbase = readKnowledgeBase();
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
KnowledgeRuntimeLogger logger =
KnowledgeRuntimeLoggerFactory.newFileLogger(ksession, "test");
// start a new process instance
System.out.println("init");
Parametre parametre = new Parametre();
parametre.para1 = "para1";
parametre.para2 = "para2";
Parametre parametre2 = new Parametre();
parametre2.para1 = "para1";
parametre2.para2 = "para2";
ksession.insert(parametre);
WorkItemHandler handler = new WorkItemHandler() {
public void executeWorkItem(WorkItem workItem,WorkItemManager manager) {
System.out.println(">" + workItem.getParameters());
System.out.println("Executing work item " + workItem);
manager.completeWorkItem(workItem.getId(), null);
}
public void abortWorkItem(WorkItem workItem,
WorkItemManager manager) {
// Do nothing
}
};
Map<String, Object> parametersDispo = new HashMap<String, Object>();
parametersDispo.put("parametre", parametre);
ksession.getWorkItemManager().registerWorkItemHandler("groupe1",
handler);
ksession.startProcess("com.sample.ruleflow1", parametersDispo);
ksession.fireAllRules();
logger.close();
} catch (Throwable t) {
t.printStackTrace();
}
}
private static KnowledgeBase readKnowledgeBase() throws Exception {
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newClassPathResource("Sample4.drl",
RuleFlowTest.class), ResourceType.DRL);
kbuilder.add(ResourceFactory.newClassPathResource("ruleFlow1.rf"),
ResourceType.DRF);
KnowledgeBuilderErrors errors = kbuilder.getErrors();
if (errors.size() > 0) {
for (KnowledgeBuilderError error: errors) {
System.err.println(error);
}
throw new IllegalArgumentException("Could not parse knowledge.");
}
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
return kbase;
}
public static class Parametre {
private String para1;
private String para2;
public String getPara1(){
return this.para1;
}
public String getPara2(){
return this.para2;
}
}
One of my rules :
rule "test 1"
ruleflow-group "groupe1"
when
p : Parametre( para1 : para1)
eval (para1 == "para1")
then
System.out.println( "groupe1 test 1" );
end
--
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16 years, 3 months
Problem with Uploading a Rule File into Guvnor
by ramram8
Hi All
I have the following problem:
When uploading a rule file into Guvnor and this rule file dont contain any
split or join the file is uploaded successfully but once I have uploaded a
rule file with split and join there is an error in the guvnor telling me
unable to generate action invoker.
Please to help in this issue
Below is my rule file:
<?xml version="1.0" encoding="UTF-8"?>
<process xmlns="http://drools.org/drools-5.0/process"
xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
xs:schemaLocation="http://drools.org/drools-5.0/process
drools-processes-5.0.xsd"
type="RuleFlow" name="flow" id="com.fp.userTask"
package-name="com.fp" >
<header>
<variables>
<variable name="createUser" >
<type
name="org.drools.process.core.datatype.impl.type.BooleanDataType" />
<value>false</value>
</variable>
<variable name="user" >
<type
name="org.drools.process.core.datatype.impl.type.StringDataType" />
<value></value>
</variable>
<variable name="endProcess" >
<type
name="org.drools.process.core.datatype.impl.type.BooleanDataType" />
<value>true</value>
</variable>
<variable name="index" >
<type
name="org.drools.process.core.datatype.impl.type.IntegerDataType" />
</variable>
</variables>
</header>
<nodes>
<end id="16" name="End" x="586" y="58" width="48" height="48" />
<start id="1" name="Start" x="9" y="160" width="48" height="48" />
<humanTask id="3" name="User Task" x="410" y="58" width="75" height="44"
>
<work name="Human Task" >
<parameter name="ActorId" >
<type
name="org.drools.process.core.datatype.impl.type.StringDataType" />
<value>#{user}</value>
</parameter>
<parameter name="Comment" >
<type
name="org.drools.process.core.datatype.impl.type.StringDataType" />
<value>This is the SubFlow task #{user} </value>
</parameter>
<parameter name="Content" >
<type
name="org.drools.process.core.datatype.impl.type.StringDataType" />
<value>Task after the log process</value>
</parameter>
<parameter name="Priority" >
<type
name="org.drools.process.core.datatype.impl.type.StringDataType" />
</parameter>
<parameter name="Skippable" >
<type
name="org.drools.process.core.datatype.impl.type.StringDataType" />
<value>false</value>
</parameter>
<parameter name="TaskName" >
<type
name="org.drools.process.core.datatype.impl.type.StringDataType" />
<value>SubFlow Task</value>
</parameter>
</work>
</humanTask>
<split id="5" name="Gateway" x="329" y="160" width="49" height="49"
type="2" >
<constraints>
<constraint toNodeId="13" name="End Process" priority="2"
type="code" dialect="java" >return endProcess;</constraint>
<constraint toNodeId="3" name="constraint" priority="1" type="code"
dialect="java" >return createUser;</constraint>
</constraints>
</split>
<join id="6" name="Gateway" x="72" y="160" width="49" height="49"
type="2" />
<end id="13" name="End" x="446" y="249" width="48" height="48" />
<workItem id="14" name="Log" x="182" y="163" width="80" height="42" >
<work name="Log" >
<parameter name="Message" >
<type
name="org.drools.process.core.datatype.impl.type.StringDataType" />
<value>ReSet the Value of createUser to TRUE</value>
</parameter>
</work>
<mapping type="in" from="index" to="indexParam" />
<mapping type="out" from="createUser" to="createUser" />
<mapping type="out" from="index" to="index" />
<mapping type="out" from="user" to="user" />
</workItem>
<split id="15" name="Gateway" x="517" y="56" width="49" height="49"
type="2" >
<constraints>
<constraint toNodeId="16" name="End Process" priority="2"
type="code" dialect="java" >return endProcess;</constraint>
<constraint toNodeId="6" name="Create New Task" priority="1"
type="code" dialect="java" >return true;</constraint>
</constraints>
</split>
</nodes>
<connections>
<connection from="15" to="16" />
<connection from="5" to="3" />
<connection from="14" to="5" />
<connection from="1" to="6" />
<connection from="15" to="6" bendpoints="[541,30;95,30]" />
<connection from="5" to="13" />
<connection from="6" to="14" />
<connection from="3" to="15" />
</connections>
</process>
--
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16 years, 3 months
Reg: Using window:time(..) method in Guided Editor in Guvnor
by bas karan
Hi,
Can you tell me how window:time(..) function is used in drools guided editor?
I have situation where Collection of objects will be there in entry-point. And if one of the objects matches certain criteria and other other objects match certain criteria, then I have to take do something.
In otherwords, Is it possible to specify "when condition" in guided editor using collection of objects for a given time window from entry-point?
Example condition,
when
remTxnData : REMTxnData(transactionType == "P2P") -- Current object inserted into session
remTxnDataLoad : REMTxnData(remTxnData.accountNumber == accountNumber, transactionType == "CC_LOAD") over window:time(1m) from entry-point TransactionStream
then
--------
end
Thanks
Baskaran S
The INTERNET now has a personality. YOURS! See your Yahoo! Homepage. http://in.yahoo.com/
16 years, 3 months
RuleFlow and facts
by paf84
Hello,
I try to understand how to use Drolls.
It's not the first time i work with rules (i know JRules).
I have a probleme when i execute my ruleflow.
I have some rules which belong to different ruleflow-group.
I have put my ruleflow-group in my ruleflow.
THe probleme is that my ruleflow never execute the "then" part of my rules.
If i delete le ruleflow-group of my rules and i execute the drl file, all my
"then" part are executed.
I think i have a problem to give my facts to the ruleflow...
Is somebody can help me ?
thx!!
Pierre
my .java
KnowledgeBase kbase = readKnowledgeBase();
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
KnowledgeRuntimeLogger logger =
KnowledgeRuntimeLoggerFactory.newFileLogger(ksession, "test");
// start a new process instance
System.out.println("init");
Parametre parametre = new Parametre();
parametre.para1 = "para1";
parametre.para2 = "para2";
Parametre parametre2 = new Parametre();
parametre2.para1 = "para1";
parametre2.para2 = "para2";
ksession.insert(parametre);
WorkItemHandler handler = new WorkItemHandler() {
public void executeWorkItem(WorkItem workItem,WorkItemManager manager) {
System.out.println(">" + workItem.getParameters());
System.out.println("Executing work item " + workItem);
manager.completeWorkItem(workItem.getId(), null);
}
public void abortWorkItem(WorkItem workItem,
WorkItemManager manager) {
// Do nothing
}
};
Map<String, Object> parametersDispo = new HashMap<String, Object>();
parametersDispo.put("parametre", parametre);
ksession.getWorkItemManager().registerWorkItemHandler("groupe1",
handler);
ksession.startProcess("com.sample.ruleflow1", parametersDispo);
ksession.fireAllRules();
logger.close();
} catch (Throwable t) {
t.printStackTrace();
}
}
private static KnowledgeBase readKnowledgeBase() throws Exception {
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newClassPathResource("Sample4.drl",
RuleFlowTest.class), ResourceType.DRL);
kbuilder.add(ResourceFactory.newClassPathResource("ruleFlow1.rf"),
ResourceType.DRF);
KnowledgeBuilderErrors errors = kbuilder.getErrors();
if (errors.size() > 0) {
for (KnowledgeBuilderError error: errors) {
System.err.println(error);
}
throw new IllegalArgumentException("Could not parse knowledge.");
}
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
return kbase;
}
public static class Parametre {
private String para1;
private String para2;
public String getPara1(){
return this.para1;
}
public String getPara2(){
return this.para2;
}
}
One of my rules :
rule "test 1"
ruleflow-group "groupe1"
when
p : Parametre( para1 : para1)
eval (para1 == "para1")
then
System.out.println( "groupe1 test 1" );
end
--
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Sent from the drools - user mailing list archive at Nabble.com.
16 years, 3 months
GUI help
by SzA84
Hi!
I have some questions about the guided editor.
I try to build a rule in the guided editor. I added some conditions and this
is the generated DRL:
Rule "grafikus"
dialect "mvel"
when
orvosimeres$Adattipus( ertek == "/heart_rate" )
orvosimeres$Mertadat( mertekegyseg == "/min" , mozgas == "true" ,
vernyomas > ( 140 ) , vernyomas < ( 180 ) )
then
end
My imports in the rule.package file are the following:
package orvosi;
import orvosi.orvosimeres.Adattipus;
import orvosi.orvosimeres.Mertadat;
And I have this error message: unknown:4:2 Unexpected token 'orvosimeres' .
So that is my first question. What can cause the problem?
And my other question is, how can I execute a rule, that was made in the
guided editor?
Thanks in advance for the reply!
--
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16 years, 3 months
Rule runs twice without explicit call to update($fact).
by Jason Smith
My colleague has confirmed that this behavior has been around since Drools 4, and it continues to be a problem for Drools 5.0.1 and 5.1.0.M1, assuming it's a problem and not working as intended.
$fact.setPath("...") implements the correct PropertyChangeSupport mechanism for Drools. At least Drools is using it and responding mostly as expected.
This runs once:
rule "Constrain to owner or published to public"
when
$fact : ListFact(
$path : path not matches ".*owner.*",
noopResponse == true
)
$model : Model()
then
modify($fact)
{
setPath($fact.getPath() + "[owner]")
}
update($fact);
end
This runs twice:
rule "Constrain to owner or published to public"
when
$fact : ListFact(
$path : path not matches ".*owner.*",
noopResponse == true
)
$model : Model()
then
modify($fact)
{
setPath($fact.getPath() + "[owner]")
}
end
If I don't use modify(...) and simply change the $fact bean path property, the same thing occurs. If I explicitly call update($fact), the rule runs once. If I don't it runs twice.
I get "/path[owner][owner]" when I actually wanted "/path[owner]", because it ran twice, not once.
Why doe update(...) work differently from the PropertyChangeSupport mechanism??? Shouldn't I be able to depend on Drools to run this rule only one time?
I am, admittedly, a bit of a noob at this, but I ran this by my local Drools resident expert, and he doesn't know the answer either.
Thanks so much!
Jason Smith
Software Engineer
InfoTrust Group, Inc.
500 Discovery Parkway, Suite 200
Superior, CO 80027
Office 303-627-6571
Fax 303-666-6711
Email jsmith(a)infotrustgroup.com<mailto:jsmith@infotrustgroup.com>
WEB www.infotrustgroup.com<http://www.infotrustgroup.com/>
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16 years, 3 months
Question on Rule Flow and Web Console
by ramram8
Hi All,
I have a question about rule flow and web console:
- Can we create a Rule Flow scenario in which the User tasks in it is
dynamic. I created a Rule Flow using Fluent Api but what will happen is
that in this case I wont have a single Rule Flow scenario with dynamic
number of user tasks I ended up by having multiple scenarios. I used also
the ForEach loop but what happened is that the user tasks are all created at
the same level.
what i am looking to is to have according to certain parameter of (2) for
example
start > task 1 > task 2 > end
if the parameter value is (3) then I will have
start > task 1 > task 2 > task 3 > end
Can this be achieved in Rule Flow ???
And if it Cant?? is there any Alternative ???
--
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16 years, 3 months
Returned mail: Data format error
by Post Office
The original message was received at Thu, 26 Nov 2009 14:05:34 +0800 from [161.48.62.85]
----- The following addresses had permanent fatal errors -----
rules-users(a)lists.jboss.org
16 years, 3 months
Returned mail: Data format error
by The Post Office
The original message was received at Thu, 26 Nov 2009 10:30:47 +0800 from lists.jboss.org [198.121.175.118]
----- The following addresses had permanent fatal errors -----
rules-users(a)lists.jboss.org
----- Transcript of the session follows -----
... while talking to lists.jboss.org.:
554 <rules-users(a)lists.jboss.org>... Message is too large
554 <rules-users(a)lists.jboss.org>... Service unavailable
16 years, 3 months
5.10M samples
by Chris Richmond
I loaded the latest (5.1M) sample for fusion into eclipse and it builds and
runs, but does anyone else get this exception from time to time?
Thanks,
Chris
=============================================================
Unexpected exception caught: [Error: cannot invoke getter: getSymbol
[declr.class: org.drools.examples.broker.model.SuddenDropEvent; act.class:
null]]
[Near : {... Unknown ....}]
^
[Line: 1, Column: 0]
org.drools.runtime.rule.ConsequenceException: [Error: cannot invoke getter:
getSymbol [declr.class: org.drools.examples.broker.model.SuddenDropEvent;
act.class: null]]
[Near : {... Unknown ....}]
^
[Line: 1, Column: 0]
at
org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleExcept
ion(DefaultConsequenceExceptionHandler.java:23)
at
org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:980)
16 years, 3 months
