Re: [rules-users] Jbilling Drools performance
See attached project, DroolsBilling. You can build it with Maven from the project directory: mvn clean package To run it after building: java -jar target/DroolsBilling-1.0.jar numRules numPhoneNumbersPerThread $ java -server -jar target/DroolsBilling-1.0.jar 100 10Rules load time: 3482msRules execution time: 732ms, per number: 0.00732msRules execution time: 731ms, per number: 0.00731msRules execution time: 746ms, per number: 0.00746msRules execution time: 760ms, per number: 0.0076msRules execution time: 832ms, per number: 0.00832msRules execution time: 623ms, per number: 0.00623msRules execution time: 600ms, per number: 0.0060msRules execution time: 632ms, per number: 0.00632msRules execution time: 630ms, per number: 0.0063msRules execution time: 607ms, per number: 0.00607msDONE! At higher numbers of rules you have to increase the perm gen and heap memory: $ java -server -Xmx1024M -XX:MaxPermSize=128M -jar target/DroolsBilling-1.0.jar 1 10Rules load time: 58317msRules execution time: 1580ms, per number: 0.0158msRules execution time: 1580ms, per number: 0.0158msRules execution time: 1586ms, per number: 0.01586msRules execution time: 2493ms, per number: 0.02493msRules execution time: 2502ms, per number: 0.02502msRules execution time: 1360ms, per number: 0.0136msRules execution time: 1358ms, per number: 0.01358msRules execution time: 1376ms, per number: 0.01376msRules execution time: 473ms, per number: 0.00473msRules execution time: 489ms, per number: 0.00489msDONE! As you can see the time to process one phone number is lower than 1 minute. :) The example uses 5 concurrent threads and was executed on a 4 core machine. A Sample.drl is included that shows the format of the rules generated, basically this: rule PhoneNumber0 whenp : PhoneNumber( digit0 == '0', digit1 == '0', digit2 == '0', digit3 == '0', digit4 == '0', digit5 == '0', digit6 == '0', digit7 == '0', digit8 == '0', digit9 == '0') then p.setPrice(0.0);end They should be substantially similar to the rules generated behind the decision table you've given, so the performance should be similar. As you can see from the times above, rule creation is expensive but execution is cheap. As Mark said, reuse the KnowledgeBase. --- On Tue, 5/18/10, Antonio Anderson Souza anto...@voicetechnology.com.br wrote: From: Antonio Anderson Souza anto...@voicetechnology.com.br Subject: Re: [rules-users] Jbilling Drools performance To: Rules Users List rules-users@lists.jboss.org Date: Tuesday, May 18, 2010, 4:11 PM Greg, CDR is a Call Detail Record, sorry I forgot to explain it, the object is a POJO with the following attributes: field: name: datereference type: DATE value: 2010-04-28 00:00:00.0 field: name: billingid type: STRING value: 20100428.15544.42adf field: name: accountid type: INTEGER value: 15544 field: name: billingperiod type: STRING value: 20100401 field: name: billingclassification type: STRING value: DUR field: name: ipxcallguid type: STRING value: 5k692927-guwtka-g8kj8d0u-1-g8krry54-o4n field: name: transactiondatetime type: DATE value: 2010-04-28 20:21:01.337 field: name: billingitemid type: INTEGER value: 0 field: name: ratesystem type: STRING value: IPXNET field: name: originnumber type: STRING value: 551135880...@bitcompany.braste field: name: destinationnumber type: STRING value: 551139012650 field: name: destinationareaid type: STRING value: 10551 field: name: chargedduration type: DATE value: 1980-01-01 00:02:06.0 field: name: chargedamount type: FLOAT value: 0.0816 field: name: userid type: INTEGER value: 3372 field: name: username type: STRING value: bitcom51 field: name: unitamount type: FLOAT value: 0.00389 field: name: amountcurrency type: STRING value: USD field: name: timezone type: INTEGER value: -3 field: name: registertype type: STRING value: MV field: name: datelastupdated type: DATE value: 2010-04-29 02:57:18.54 field: name: lastupdatedby type: STRING value: IPXRateCalls rev032 field: name: lastupdateremarks type: STRING value: null field: name: dateinserted type: DATE value: 2010-04-29 02:57:18.54 field: name: destinationdetail type: STRING value: SAO PAULO field: name: type type: STRING value: Fixo field: name: collectedcallflag type: INTEGER value: 0 field: name: jb_timestamp type: DATE value: null field: name: digit0 type: INTEGER value: 5 field: name: digit1 type: INTEGER value: 5 field: name: digit2 type: INTEGER value: 1 field: name: digit3 type: INTEGER value: 1 field: name: digit4 type: INTEGER value: 3 field: name: digit5 type: INTEGER value: 9 field: name: digit6 type: INTEGER value: 0 field: name: digit7 type: INTEGER value: 1 field: name: digit8 type: INTEGER value: 2 field: name: digit9 type: INTEGER value: 6 field: name: digit10 type: INTEGER value: 5 field: name: digit11 type: INTEGER value: 0 This spreadsheet is only a sample because the whole one has 4 rules, I'm checking the
Re: [rules-users] [Drools Fusion] Can't detect 2 occurrences with sliding window
Hello Wolfgang,
sorry, I wasn't available yesterday.
I just followed your instructions:
Here's my test method now :
@SuppressWarnings(unchecked)
@Test
public void testActivity() throws IOException, ParseException,
InterruptedException {
// parse the log file
Resource logFile = new ClassPathResource(
activity/activity18h20-18h30-extract.log);
// converter and inject tracks in the session,
ListString logLines = FileUtils.readLines(logFile.getFile(),
UTF-8);
LOGGER.info(loading events);
// load events from stream
Operation previousOperation = null;
for (String logLine : logLines) {
Operation operation = LineConverterUtil.getOperation(logLine);
Assert.assertFalse(Current operation equals() previous one,
operation.equals(previousOperation));
Assert.assertFalse(Current operation == previous one,
operation == previousOperation);
previousOperation = operation;
LOGGER.debug(Moving clock from
+ (new Date(clock.getCurrentTime())).toString() + to
+ operation.getDate());
clock.advanceTime(operation.getDate().getTime()
- clock.getCurrentTime(), TimeUnit.MILLISECONDS);
// clock.advanceTime(10, TimeUnit.SECONDS);
LOGGER.debug(Inserting + operation);
FactHandle operationHandle = entryPoint.insert(operation);
LOGGER.debug(Insertion done: +
operationHandle.toExternalForm());
}
session.fireAllRules();
LOGGER.info(done with events);
// check...
Assert.assertTrue(Rule not fired..., listener
.isRuleFired(overActivity));
}
And the logs in the console :
Console 2010-05-19 09:57:06|INFO ||DroolsRulesTestCase.testActivity|loading
events
Console 2010-05-19 09:57:06|DEBUG||DroolsRulesTestCase.testActivity|Moving
clock from Thu Jan 01 01:00:00 CET 1970 to Fri Apr 30 18:26:47 CEST 2010
Console 2010-05-19
09:57:06|DEBUG||DroolsRulesTestCase.testActivity|Inserting Operation
[date=Fri Apr 30 18:26:47 CEST 2010, executionTime=1, hostname=server1,
ipAddress=1.2.3.4, operation=null, requestSize=0, responseSize=0]
Console 2010-05-19 09:57:06|WARN
||TrackingWorkingMemoryEventListener.objectInserted|Object inserted: [event
fid:1:1:Operation [date=Fri Apr 30 18:26:47 CEST 2010, executionTime=1,
hostname=server1, ipAddress=1.2.3.4, operation=null, requestSize=0,
responseSize=0]]
Console 2010-05-19
09:57:06|DEBUG||DroolsRulesTestCase.testActivity|Insertion done: [event
fid:1:1:Operation [date=Fri Apr 30 18:26:47 CEST 2010, executionTime=1,
hostname=server1, ipAddress=1.2.3.4, operation=null, requestSize=0,
responseSize=0]]
Console 2010-05-19 09:57:06|DEBUG||DroolsRulesTestCase.testActivity|Moving
clock from Fri Apr 30 18:26:47 CEST 2010 to Fri Apr 30 18:27:11 CEST 2010
Console 2010-05-19
09:57:06|DEBUG||DroolsRulesTestCase.testActivity|Inserting Operation
[date=Fri Apr 30 18:27:11 CEST 2010, executionTime=164, hostname=server1,
ipAddress=1.2.3.4, operation=CONSULTATION, requestSize=1299,
responseSize=895]
Console 2010-05-19 09:57:06|WARN
||TrackingWorkingMemoryEventListener.objectRetracted|Object retracted:
[event fid:1:1:Operation [date=Fri Apr 30 18:26:47 CEST 2010,
executionTime=1, hostname=server1, ipAddress=1.2.3.4, operation=null,
requestSize=0, responseSize=0]]
Console 2010-05-19 09:57:06|WARN
||TrackingWorkingMemoryEventListener.objectInserted|Object inserted: [event
fid:2:2:Operation [date=Fri Apr 30 18:27:11 CEST 2010, executionTime=164,
hostname=server1, ipAddress=1.2.3.4, operation=CONSULTATION,
requestSize=1299, responseSize=895]]
Console 2010-05-19
09:57:06|DEBUG||DroolsRulesTestCase.testActivity|Insertion done: [event
fid:2:2:Operation [date=Fri Apr 30 18:27:11 CEST 2010, executionTime=164,
hostname=server1, ipAddress=1.2.3.4, operation=CONSULTATION,
requestSize=1299, responseSize=895]]
Console 2010-05-19 09:57:06|DEBUG||DroolsRulesTestCase.testActivity|Moving
clock from Fri Apr 30 18:27:11 CEST 2010 to Fri Apr 30 18:28:47 CEST 2010
Console 2010-05-19
09:57:06|DEBUG||DroolsRulesTestCase.testActivity|Inserting Operation
[date=Fri Apr 30 18:28:47 CEST 2010, executionTime=1, hostname=server1,
ipAddress=1.2.3.4, operation=null, requestSize=0, responseSize=0]
Console 2010-05-19 09:57:06|WARN
||TrackingWorkingMemoryEventListener.objectRetracted|Object retracted:
[event fid:2:2:Operation [date=Fri Apr 30 18:27:11 CEST 2010,
executionTime=164, hostname=server1, ipAddress=1.2.3.4,
operation=CONSULTATION, requestSize=1299, responseSize=895]]
Console 2010-05-19 09:57:06|WARN
||TrackingWorkingMemoryEventListener.objectInserted|Object inserted: [event
fid:3:3:Operation [date=Fri Apr 30 18:28:47 CEST 2010, executionTime=1,
hostname=server1, ipAddress=1.2.3.4, operation=null, requestSize=0,
responseSize=0]]
Console 2010-05-19
[rules-users] use rule assign actor
hi , i am a drools flow newbie.I want to using assignment rule assign a actor to a HumanTask. I have write a dsl and dslr files and following code : kbuilder.add(ResourceFactory.newClassPathResource(HelloWorldSample.rf), ResourceType.DRF); kbuilder.add(ResourceFactory.newClassPathResource(assignment.dsl), ResourceType.DSL); kbuilder.add(ResourceFactory.newClassPathResource(assignment.dslr), ResourceType.DSLR); but when i start a process instance and the token arrive at a humantask,the assignment rule couldn't be firing. who can tell me how can i do it? ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Optimizing the size of a StatefulKnowledgeSession object.
Dear Drools' developers and users, I have a problem regarding the size of my Drools' StatefulKnowledgeSession. As I'm working with a 'stateful' session that lives on a web server I have bound this session onto my web session. That means the Drools' session is able to access some facts from preceding calls. The Drools' session lives as long as the web session lives. So far so good. Now I've started to mesure the size of the StatefulKnowledgeSession by usage of heap dumps and some profiling tools. This yielded a size of approximately 5 MB. Is there any approach to optimize the size of a StatefulKnowledgeSession? Apparently this object has a lot of overhead (from my point of view) regarding the Drools Flow and Gouvenor frameworks because I'm not utilizing this frameworks at all (just Drools Expert). Maybe this is an approach to optimize the session's size? If I accept this size, is there a convenient way to serialize the StatefulKnowledgeSession between calls? I'm thinking about storing the whole StatefulKnowledgeSession inside the database or maybe some datastructure apart from the websession. Every call inside one web session would have to lead to a deserialization, application and serialization of Drools' session. Thank you in advance for any reply. Kind regards! Johannes -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Optimizing-the-size-of-a-StatefulKnowledgeSession-object-tp828728p828728.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Optimizing the size of a StatefulKnowledgeSessionobject.
Dear Thomas, Sorry, I forgot to mention that 5 MB is the 'initial' size. There are just the rules and some data inside the session. From this starting point on the session doesn't become dramatically bigger. Yes, I'm retracting the most of the facts at points where I'm certain that these facts aren't relevant any more. But the facts aren't a problem. It is the size of the session with all the rules loaded. Kind regards, Johannes -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Optimizing-the-size-of-a-StatefulKnowledgeSession-object-tp828728p828747.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Dynamic generated list
I would like to generate a template that can output rules, as explained in Drools expert user guide at chapter 5.2 ( http://downloads.jboss.com/drools/docs/5.0.1.26597.FINAL/drools-expert/html_single/index.html#d0e6212 ). My parameters are 2 lists of strings. In some case the list is to be outputted as a multi restriction, and that is no problem. But, from one of this lists, i need also to generate a collection of strings to then reason over. As an example, suppose the list1 contains 3 productIds, A,B,C, and the list2 contains X and Y. In the generated rule, i need to check, for example, that: - if a product with id 'X' or 'Y' exists (this part is easy), and - a tuple composed of products from the other list(one A, one B, one C) that individually satisfy some condition exists (this is tough for me) then i will execute my code. I think the generated rule should be something like: when $target: Product (id in (X,Y)) $list: ArrayList() from #arrayList should contain the parameter values A,B,C forall ( $id: String() from $list Product (id == $id, here some condition...) ) then . The difficult part is to generate the ArrayList dynamically, i don't know how to accomplish that... Any ideas? Is there a better approach than templates, to generate a rule like this? Do you have a suggestion on how the rule could be rewritten to avoid the use of the ArrayList? Thank you in advance Giovanni ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Event expiration doubt
Hi! I've detected some problems in my rules regarding event expiration but I can't understand why. Maybe someone with more experience could help me out. I think the example is quite simple: the application receives transactions. The lack of transactions for an hour should raise an alarm. If there's a transaction when the alarm is on, then the application should rearm, clear the alarm state and check for lack of transactions. The rules: package com.company.application; import com.company.application.Notifier; import com.company.application.Notification; import com.company.application.Transaction; dialect java # event which represents an alarm state declare NoTransactions @role( event ) dummy1: long end # event which represents the start of drools engine declare EngineStarted @role( event ) dummy2 : long end # event which represents the need to check for absence of transactions for the first hour declare CheckFirstTransaction @role( event ) @expire( 1h ) dummy3: long end # event which represents a Transaction declare Transaction @role( event ) @expires( 1h ) end # Notification System global Notifier notifier; rule ***start*** when not( EngineStarted() ) then insert( new EngineStarted() ); insert( new CheckFirstTransaction() ); end rule ***notrx_after_start*** when $engineStarted : EngineStarted() $checkFirstTransaction : CheckFirstTransaction() not( NoTransactions() ) not( Transaction( this after[0s,1h] $engineStarted ) from entry-point incoming ) then insert ( new NoTransactions() ); retract( $checkFirstTransaction ); notifier.send( new Notification( ALARM ) ); end rule ***notrx_after_trx*** when EngineStarted() not( NoTransactions() ) $transaction: Transaction() from entry-point incoming not( Transaction( this != $transaction, this after [0s,1h] $transaction ) from entry-point incoming ) then insert( new NoTransactions()); notifier.send( new Notification( ALARM ) ); end rule ***rearm*** when EngineStarted() $noTransactions : NoTransactions() $transaction: Transaction( this after $noTransactions ) from entry-point incoming then retract( $noTransactions ); notifier.send( new Notification( REARM ) ); end The unit test: kSession.fireAllRules(); // needed to detect lack of transactions in the first hour /* here, ***start*** rule fires = EngineStarted and CheckFirstTransaction inserted */ clock.advanceTime( 1, TimeUnit.HOURS ); /* here, ***notrx_after_start*** rule fires = NoTransactions inserted, CheckFirstTransaction retracted */ clock.advanceTime(10, TimeUnit.MINUTES ); entryPoint.insert( new Transaction() ); /* before inserting Transaction into EntryPoint, NoTransactions is retracted */ kSession.fireAllRules(); The problem: After inserting the last transaction, automatically the NoTransactions event is retracted. Debugging inside drools-core project, I've discovered that the event was retracted because expiration (WorkingMemoryReteExpireAction on actionQueue). I've also found some more explain how expiration events works, by Edison (http://drools-java-rules-engine.46999.n3.nabble.com/Events-are-not-automatically-expiring-from-working-memory-td61127.html). That shed some light on *when* the event is retracted but I don't understand *why* it's retracted. Thanks In Advance! Vítor Mendonça Moreira Analista / Programador Direcção de Investigação e Desenvolvimento Rua Dr. Francisco Sá Carneiro, nº. 4 r/c esq. 2500 - 206 - Caldas da Rainha Tel: (+351) 262 832 196 Fax: (+351) 262 186 455 Web: www.makewise.pt http://www.makewise.pt Uma empresa: Grupo Sousa Pedro http://www.sousapedro.com image001.jpgimage002.jpg___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] use rule assign actor
A good start could be to give us more info, like your rules, your flow and how are you executing them. ;) Best, On Wed, May 19, 2010 at 6:39 AM, HONG DENG denghongs...@gmail.com wrote: hi , i am a drools flow newbie.I want to using assignment rule assign a actor to a HumanTask. I have write a dsl and dslr files and following code : kbuilder.add(ResourceFactory.newClassPathResource(HelloWorldSample.rf), ResourceType.DRF); kbuilder.add(ResourceFactory.newClassPathResource(assignment.dsl), ResourceType.DSL); kbuilder.add(ResourceFactory.newClassPathResource(assignment.dslr), ResourceType.DSLR); but when i start a process instance and the token arrive at a humantask,the assignment rule couldn't be firing. who can tell me how can i do it? ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Esteban Aliverti ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Drools 5.1 Persistence without JTA
I dont want to use the JTA transactions for process can this be done if yes please point me towards it thanks - Keep Working KiranP -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Drools-5-1-Persistence-without-JTA-tp828933p828933.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Using Drools as a glorified Hashmap
Hi John, Wolfgang, Thanks for your suggestions. Though I didn't use either of your suggestions as described, it helped me work it out. I added tokens describing the prescriptions, then as they are matched (using RETE), the tokens are retracted. Then any tokens left over are invalid. It is probably as fast as a HashMap. I don't think John's solution would have worked, because no single rule can determine whether a prescription is invalid. Regards, Daniel -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Using-Drools-as-a-glorified-Hashmap-tp825851p829059.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Deployment ear with drools support
basically you are including a jar file that contains a orm.xml file that contains a lot of named queries and also a persistence.xml file that defines org.drools.task. That is causing you problems. 2010/5/19 Pedro Maria Buitrago Mantilla pmbt...@gmail.com Greatings, Features: 1. jboss 4.2.1 2. jvm jdk1.5.0_13 3. drools 5.0.1 I deployed a EAR application over jboss, this application uses drools support for work flow activities, without particular persistence definitions , but I have the next error: --- MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM --- ObjectName: persistence.units:ear=DroolsSupport-Ear.ear,unitName=org.drools.task State: FAILED Reason: java.lang.RuntimeException: You have not defined a jta-data-source for a JTA enabled persistence context named: org.drools.task ObjectName: persistence.units:ear=DroolsSupport-Ear.ear,jar=DroolsSupportEjb.jar,unitName=DroolsSupportJPA State: FAILED Reason: javax.persistence.PersistenceException: org.hibernate.HibernateException: Errors in named queries: TasksAssignedAsBusinessAdministrator, TasksAssignedAsTaskInitiator, TasksAssignedAsExcludedOwner, TasksAssignedAsRecipient, TasksAssignedAsPotentialOwner, TasksAssignedAsPotentialOwnerWithGroup, SubTasksAssignedAsPotentialOwner, TasksOwned, TasksAssignedAsPotentialOwnerByGroup, GetSubTasksByParentTaskId, TasksAssignedAsTaskStakeholder, UnescalatedDeadlines I Depend On: jboss.jca:service=DataSourceBinding,name=DroolsDatasource Depends On Me: jboss.j2ee:ear=DroolsSupport-Ear.ear,jar=DroolsSupportEjb.jar,name=WorkFlowResultServices,service=EJB DroolsSupportJPA is a persistence unit independient of drools But I don't use anything for drools persistence, What happend? PEDRO MARIA BUITRAGO MANTILLA Bogotá, Colombia ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- - http://salaboy.wordpress.com - http://www.jbug.com.ar - Salatino Salaboy Mauricio - ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Dynamic generated list
Looking at: http://mvel.codehaus.org/Inline+List,+Maps+and+Arrays I see MVEL supports inline of lists, but unfortunately, this syntax seems not to be supported by 'from' construct. From drools expert documentation @ 4.8.2.8 Conditional Element from i read: The expression used to define the object source is any expression that follows regular MVEL syntax. I tried Edson Tirelli suggestion reported in: http://drools-java-rules-engine.46999.n3.nabble.com/Welcome-to-the-rules-users-mailing-list-td325731.html#none I realized by testing that the suggestion works for a memberOf construct, but not in a from clause. Is this expected behaviour or is this a bug/unsupported feature? Thank you in advance. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Dynamic generated list
You can't do any sort of constructor calls in the condition section.
i'm not sure if you're asking what goes in the spot, but,
$list: ArrayList() from collect(Product(id == @{id}, ...conditions...))
perhaps?
--
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Re: [rules-users] Dynamic generated list
Thank you for the response djb.
Doing what you say, i will collect ALL instances of products with id
'A','B','C', instead i need a tuple of exactly one 'A', one 'B' and one 'C'.
In my scenario, products may occur multiple times (that i forgot to say, my
fault...).
I investigated a bit and posted a response myself, probably found a bug or
missing implementation.
Kind regards
2010/5/19 djb dbrownel...@hotmail.com
You can't do any sort of constructor calls in the condition section.
i'm not sure if you're asking what goes in the spot, but,
$list: ArrayList() from collect(Product(id == @{id}, ...conditions...))
perhaps?
--
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http://drools-java-rules-engine.46999.n3.nabble.com/Dynamic-generated-list-tp828787p829220.html
Sent from the Drools - User mailing list archive at Nabble.com.
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Re: [rules-users] Using Drools as a glorified Hashmap
Hey Daniel, My suggestion was that a single default rule could be fired to indicate that the prescription was invalid if all the matching rules failed to create a valid match. Example: - Match Rule 1, Salience 50, Activation-group Match Rules - Match Rule 2, Salience 50, Activation-group Match Rules - Match Rule 3, Salience 50, Activation-group Match Rules - Match Rule 4, Salience 50, Activation-group Match Rules - Match Rule 5, Salience 50, Activation-group Match Rules - Match Rule 6, Salience 50, Activation-group Match Rules - Match Rule 7, Salience 50, Activation-group Match Rules - Match Rule 8, Salience 50, Activation-group Match Rules - Match Rule 9, Salience 50, Activation-group Match Rules - No Match Rule 1, Salience 0, Activation-group Match Rules Activation-group allows only one rule to fire from all the rules sharing that activation-group. By putting a positive salience (priority) on all the match rules, if any one of them matches, that's all that can fire per the activation-group. However, if the No Match rule is fired, that means that the prescription was not matched by any of the match rules. It is a default. The rule can be as simple as: Rule No Match salience 0 activation-group Match Rules When Eval(true) // Always true Then Do your no match logic End The activation-group is doing your heavy lifting, so to speak jp Message: 3 Date: Wed, 19 May 2010 06:20:39 -0700 (PDT) From: djb dbrownel...@hotmail.com Subject: Re: [rules-users] Using Drools as a glorified Hashmap To: rules-users@lists.jboss.org Message-ID: 1274275239719-829059.p...@n3.nabble.com Content-Type: text/plain; charset=us-ascii Hi John, Wolfgang, Thanks for your suggestions. Though I didn't use either of your suggestions as described, it helped me work it out. I added tokens describing the prescriptions, then as they are matched (using RETE), the tokens are retracted. Then any tokens left over are invalid. It is probably as fast as a HashMap. I don't think John's solution would have worked, because no single rule can determine whether a prescription is invalid. Regards, Daniel -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Using-Drools-as-a-gl orified-Hashmap-tp825851p829059.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Drools 5.1 Persistence without JTA
Hi Kiram, We are currently working, through the spring integration, on adding support for using processes without JTA. The only pending feature is the automatic rollback handling that JTA provides, that means that you *MUST* reload the session instance after a rollback. Here you have an example app: http://www.plugtree.com/downloads/DroolsFlowSpring.tgz -- Baunax On Wednesday 19,May,2010 09:22 AM, KiranP wrote: I dont want to use the JTA transactions for process can this be done if yes please point me towards it thanks - Keep Working KiranP ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Drools 5.1 Persistence without JTA
On 19/05/2010 16:13, Pablo Nussembaum wrote: Hi Kiram, We are currently working, through the spring integration, on adding support for using processes without JTA. The only pending feature is the automatic rollback handling that JTA provides, that means that you *MUST* reload the session instance after a rollback. I'm now wondering if automic rollback was such as good idea; I'm just not sure of a good way to ensure integrity between the rules and the process interactions if the current workingmemory becomes invalid. for processes it just loads the process on demand anyway, so automatic rollback isn't needed, for rules it's a little more complicated. Mark Here you have an example app: http://www.plugtree.com/downloads/DroolsFlowSpring.tgz ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Changes made to knowledge bases and the time associated with it
Hi all, I'm working on an application that has to maintain a knowledge base that'll change (a lot) over time; meaning some rules might change, others will be added and, finally, some will be deleted from the KB. Our tests show the following un-expected (imho *) behaviors: - Whenever the contents of the KB change, all rules associated with it are re-compiled.It doesn't matter whether one rule or all of them were changed. - If the time taken to re-compile all rules is greater than the frequency according to which resource change notification / scanner services poll the KB, then the KB will be re-compiled more than once. I can't measure how many extra compilations happen due to time constraints; it takes more than 10 minutes for the application to compile all rules and something like 5 minutes to recompile the smallest possible version of it. So... my question is: is possible to fine tune this behavior so that drools won't recompile everything from scratch? More than that, I'd like to have it wait for itself to finish any compilation that might happening at the time. Is it possible? My approach to using drools is the following: create a KnowledgeAgent, then have it apply a change set that points to a directory that contains DRL files. And this has to be done for five different KA's. I suppose this is the correct approach. Thanks in advance for any feedback that you might have. Regards, Luiz Eduardo ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Changes made to knowledge bases and the time associated with it
I was working in KnowledgeAgent incremental change-set processing. Right now, the agent only adds to the kbase those rules that were modified. The bad news are that in order to know if a rule was modified or not, the agent must compile the resource. Here you can find more info: http://ilesteban.wordpress.com/2010/03/25/knowledge-agent-incremental-change-set-processing-and-binary-diff/ http://ilesteban.wordpress.com/2010/03/25/knowledge-agent-incremental-change-set-processing-and-binary-diff/I'm planning to post a more detailed explanation of what happens inside the kagent when processing change-sets. Best, 2010/5/19 Luiz Eduardo Guida Valmont legvalm...@gmail.com Hi all, I'm working on an application that has to maintain a knowledge base that'll change (a lot) over time; meaning some rules might change, others will be added and, finally, some will be deleted from the KB. Our tests show the following un-expected (imho *) behaviors: - Whenever the contents of the KB change, all rules associated with it are re-compiled.It doesn't matter whether one rule or all of them were changed. - If the time taken to re-compile all rules is greater than the frequency according to which resource change notification / scanner services poll the KB, then the KB will be re-compiled more than once. I can't measure how many extra compilations happen due to time constraints; it takes more than 10 minutes for the application to compile all rules and something like 5 minutes to recompile the smallest possible version of it. So... my question is: is possible to fine tune this behavior so that drools won't recompile everything from scratch? More than that, I'd like to have it wait for itself to finish any compilation that might happening at the time. Is it possible? My approach to using drools is the following: create a KnowledgeAgent, then have it apply a change set that points to a directory that contains DRL files. And this has to be done for five different KA's. I suppose this is the correct approach. Thanks in advance for any feedback that you might have. Regards, Luiz Eduardo ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Esteban Aliverti ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Java Enums in Guvnor
Hi All,
I've recently started using Drools and Guvnor, and so far really like
it!
I have one problem however, to do with Java enums in Guvnor.
I have a simple enum as follows:
public enum STPRuleAction
{
UNKNOWN, ACCEPT, REJECT
}
I can hand write a rule that works fine with this enum as follows:
rule Retract rejected
dialect mvel
when
o : CtasOrder( stpRuleAction == STPRuleAction.REJECT )
then
o.setStatus( 1 );
retract( o );
end
However, if I create a rule with Guvnor, it always puts quotes around
the condition, so seems to treat it as a string and it is never
triggered. I have created a Guvnor enumeration as follows:
'CtasOrder.stpRuleAction' : ['STPRuleAction.UNKNOWN=UNKNOWN',
'STPRuleAction.ACCEPT=ACCEPT', 'STPRuleAction.REJECT=REJECT']
Which gives me the correct drop down values in the Business Rule editor,
but the source of the rule looks like:
rule Retract rejected
dialect mvel
when
o : CtasOrder( stpRuleAction == STPRuleAction.REJECT)
then
o.setStatus( 1 );
retract( o );
end
I've tried without the mapping in the enumeration (e.g ... :
['STPRuleAction.UNKNOWN', ...) and even removing the enumeration and
adding the text manually as a literal value. I can't see any way to
specfy a enum/qualifiedIdentifier as a condition in Guvnor. It works
fine as a consequence and produces a rule without quotes around (e.g.
o.setStpRuleAction( STPRuleAction.REJECT )...)
Many thanks for any assistance you can give.
Regards,
Ian
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[rules-users] Configuration file problem in Glassfish
I've run into a problem with the 5.0 version of drools and it's interaction with the Glassfish app server. When the drools engine is initializing it looks for the drools.rulebase.conf file in the user.home directory. In my company's app server environments, the applications are not allowed to write to or read from the user.home directory so it throws an AccessControlException saying access is denied and the application will not start up. Is there any way to tell drools not too look for this file short of downloading the source, modifying it and creating my own jars? I've tracked the offending code down to the ChainedProperties class in the drools-core jar so I know what to change if it comes down to that. Thanks in advance. Zack -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Configuration-file-problem-in-Glassfish-tp829814p829814.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Java Enums in Guvnor
Hi Ian,
I tried using Enums with Guvnor twice: once back in the 4.0 times of
Drools, once again when we got the 5.0 update.
My experience: Java enums and Guvnor simply don't work together. Stick
with writing DRL rule files in a text editor, or even better, using the
Eclipse plugin. This way, enums work somehow (still no code completion
for enum values, even when using the Eclipse plugin). If for some reason
you must use guvnor, you'll probably need to convert your beans
properties now holding Java enums into properties of type String and use
string constants to define the allowed value range.
Guvnor experts: I'd be very happy to be proven wrong by someone of you.
Some kind of HOWTO use Java Enums in Guvnor correctly blog post etc.
very much appreciated ;-)
Best regards
Ansgar
On 19.05.2010 18:36, ian-d.jo...@ubs.com wrote:
Hi All,
I've recently started using Drools and Guvnor, and so far really like it!
I have one problem however, to do with Java enums in Guvnor.
I have a simple enum as follows:
**
*public* *enum* STPRuleAction
{
/ UNKNOWN/, /ACCEPT/, /REJECT//
/}
I can hand write a rule that works fine with this enum as follows:
**
*rule* Retract rejected
* dialect* mvel
* when
* o : CtasOrder( stpRuleAction == STPRuleAction.REJECT )
* then
* o.setStatus( 1 );
* retract*( o );
*end*
However, if I create a rule with Guvnor, it always puts quotes around
the condition, so seems to treat it as a string and it is never
triggered. I have created a Guvnor enumeration as follows:
'CtasOrder.stpRuleAction' : ['STPRuleAction.UNKNOWN=UNKNOWN',
'STPRuleAction.ACCEPT=ACCEPT', 'STPRuleAction.REJECT=REJECT']
Which gives me the correct drop down values in the Business Rule
editor, but the source of the rule looks like:
*rule* Retract rejected
* dialect* mvel
* when
* o : CtasOrder( stpRuleAction == *STPRuleAction.REJECT*)
* then
* o.setStatus( 1 );
* retract*( o );
*end*
I've tried without the mapping in the enumeration (e.g ... :
['STPRuleAction.UNKNOWN', ...) and even removing the enumeration and
adding the text manually as a literal value. I can't see any way to
specfy a enum/qualifiedIdentifier as a condition in Guvnor. It works
fine as a consequence and produces a rule without quotes around (e.g.
o.setStpRuleAction( STPRuleAction.REJECT )...)
Many thanks for any assistance you can give.
Regards,
Ian
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Re: [rules-users] Drools 5.1 Persistence without JTA
yea, for the process ( flow ) it seems to work fine using a regular
org.springframework.orm.jpa.JpaTransactionManager:
bean id=abstractKnowledgeProvider
class=org.drools.container.spring.beans.persistence.JPAKnowledgeServiceBean
abstract=true
property name=entityManagerFactory ref=entityManagerFactory
/
property name=transactionManager ref=txManager /
property name=variablePersisters
util:map
entry key=javax.persistence.Entity
value=org.drools.persistence.processinstance.persisters.JPAVariablePersister
/
entry key=java.lang.String
value=com.jpmc.tss.admincenter.framework.workflow.drools.variablepersistence.StringVariablePersister
/
entry key=java.io.Serializable
value=org.drools.persistence.processinstance.persisters.SerializableVariablePersister
/
/util:map
/property
/bean
bean id=txManager
class=org.springframework.orm.jpa.JpaTransactionManager
property name=entityManagerFactory
ref=entityManagerFactory /
/bean
bean id=entityManagerFactory
class=org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean
property name=persistenceUnitName
value=your.persistence.unit /
property name=dataSource ref=datasource /
property name=jpaProperties
props
prop
key=hibernate.connection.autocommit${hibernate.connection.autocommit}/prop
prop
key=hibernate.max_fetch_depth${hibernate.max_fetch_depth}/prop
prop key=hibernate.show_sql${hibernate.show_sql}/prop
prop key=hibernate.dialect${hibernate.dialect}/prop
prop
key=hibernate.hbm2ddl.auto${hibernate.hbm2ddl.auto}/prop
/props
/property
/bean
bean
class=org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor
/
bean
class=org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor/
drools:connection id=connection1 type=local /
drools:execution-node id=node1 connection=connection1 /
/Anatoly
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Re: [rules-users] skip workflow's task from NodeInstance
salaboy, I'm need to do a web page that shows the flow and allows a superuser to start/stop the flow, as well as skip and interact with the active nodes. This need to be available for each flow instantiated. So what I managed (with help) to list all flows instantiated as well as it's nodes waiting to be completed, but I need some way to show the other tasks and approve (complete) them just by having it NodeInstance (or maybe approach on a different way... any ideas). best regards, -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/skip-workflow-s-task-from-NodeInstance-tp787552p830058.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] BPMN2 Timer Cycle
Per BPMN2 specification: The timer has a specific time-date or a specific cycle (e.g., every Monday at 9am) that can be set, so if the cycle is every day at 9 a.m. BPMN2 was a recommended way to go, since DRF is going to become obsolete soon. Is this timer feature currently supported by Drools? I can see it in XSD: xsd:element name=timerEventDefinition type=tTimerEventDefinition substitutionGroup=eventDefinition/ xsd:complexType name=tTimerEventDefinition xsd:complexContent xsd:extension base=tEventDefinition xsd:choice xsd:element name=timeDate type=tExpression minOccurs=0 maxOccurs=1/ xsd:element name=timeCycle type=tExpression minOccurs=0 maxOccurs=1/ /xsd:choice /xsd:extension /xsd:complexContent /xsd:complexType But not in Eclipse IDE properties. /Anatoly -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/BPMN2-Timer-Cycle-tp830158p830158.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] BPMN2 Timers : Dynamic Delay / Cycle
Similar to calling a subprocess dynamically:
processId=com.sample.#{var}
Can Timer Values such as timeDate and timeCycle can be configured at
runtime?
Thank you,
/Anatoly
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Re: [rules-users] Wrong flow script task executes when multiple flows are loaded
This issue seems to be remedied by placing each flow in its own package. I still don't know if this is a bug or a feature. -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Wrong-flow-script-task-executes-when-multiple-flows-are-loaded-tp826751p830193.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Drools with Guvnor
Hi, I am very new to Drools and very very new to Guvnor. I am in the process of creating a rule engine which will fetch the data from a source (I am using Hibernate framework to fetch the data) and evaluate the data using Drools rule engine. The rules supplied to the Drools rule engine are stored in a Rules table in a database. Now my question is that can I use Guvnor to store the rules (instead of me creating a rule data model) and use Guvnor to supply rules to my Drools engine? I am trying to find out the best possible way to create / manage a rule database (which stores all the rules). Thanks, BB -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Drools-with-Guvnor-tp830453p830453.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Drools with Guvnor
Yes and no . Guvnor uses a JCR repository (the default is http://jackrabbit.apache.org/) which can not be accessed using hibernate directly. We ran into this issue, and the only way to use guvnor as of 6 months ago was to have a user go into guvnor and create a DRL file by clicking a few buttons. Not a big deal, but it isn't automated. You can then use that DRL as a resource in your application. I know there was some working being done to be able to pull out DRLs from Guvnor using xml calls, but don't know if that was ever completed. Michael Rhoden - Original Message - From: bbarani bbar...@gmail.com To: rules-users@lists.jboss.org Sent: Wednesday, May 19, 2010 5:12:57 PM Subject: [rules-users] Drools with Guvnor Hi, I am very new to Drools and very very new to Guvnor. I am in the process of creating a rule engine which will fetch the data from a source (I am using Hibernate framework to fetch the data) and evaluate the data using Drools rule engine. The rules supplied to the Drools rule engine are stored in a Rules table in a database. Now my question is that can I use Guvnor to store the rules (instead of me creating a rule data model) and use Guvnor to supply rules to my Drools engine? I am trying to find out the best possible way to create / manage a rule database (which stores all the rules). Thanks, BB -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Drools-with-Guvnor-tp830453p830453.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] use rule assign actor
*I paste all information here :
HelloWorldSample.rf * :
?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/processdrools-processes-5.0.xsd;
type=RuleFlow name=flow id=com.sample.evaluation
package-name=org.drools.bpmn2
header
/header
nodes
start id=1 name=Start x=44 y=139 width=48 height=48 /
humanTask id=2 name=thefirstone x=156 y=140 width=80
height=40
work name=Human Task
parameter name=ActorId
type
name=org.drools.process.core.datatype.impl.type.StringDataType /
value/value
/parameter
parameter name=Comment
type
name=org.drools.process.core.datatype.impl.type.StringDataType /
valueYou need to perform a self-evaluation/value
/parameter
parameter name=Content
type
name=org.drools.process.core.datatype.impl.type.StringDataType /
/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 /
valuefalse/value
/parameter
parameter name=TaskName
type
name=org.drools.process.core.datatype.impl.type.StringDataType /
valuefirstHumanTask/value
/parameter
/work
/humanTask
end id=3 name=End x=290 y=140 width=80 height=40 /
/nodes
connections
connection from=1 to=2 /
connection from=2 to=3 /
/connections
/process
*assignment.dslr:*
package org.drools.examples.process.order
import org.drools.process.instance.impl.WorkItemImpl
import org.drools.workflow.instance.node.WorkItemNodeInstance
expander assignment.dsl
/** Generic assignment rules **/
rule Assign actor salience 30
when
There is a human task
then
Set actor id mary
end
*assignment.dsl:*
***
[condition][HumanTaskWorkItem]- with actor id
{actorId}=parameters['ActorId'] == {actorId}
[condition][HumanTaskWorkItem]- without actor id=parameters['ActorId'] ==
null
[condition][HumanTaskWorkItem]- with task name
{taskName}=parameters['TaskName'] == {taskName}
[condition][HumanTaskWorkItem]There is a human task=workItemNodeInstance:
WorkItemNodeInstance( ) workItem: WorkItemImpl( name == Human Task ) from
workItemNodeInstance.workItem
[consequence][]Set actor id {actorId}=workItem.setParameter(ActorId,
{actorId}); update(workItemNodeInstance);
[condition][HumanTaskWorkItem]- with priority
{priority}=parameters['Priority'] == {priority}
[condition][HumanTaskWorkItem]Process {processId} contains a human
task=workItemNodeInstance: WorkItemNodeInstance( processInstance.processId
== {processId} ) workItem: WorkItemImpl( name == Human Task ) from
workItemNodeInstance.workItem
*
*and have following code to start a process instance:*
*
package com.sample;
/**
* This is a sample file to launch a process.
*/
public class ProcessTest {
public static final void main(String[] args) {
try {
//start humantask component
startHumanTaskComponent();
// load up the knowledge base
KnowledgeBase kbase = readKnowledgeBase();
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
KnowledgeRuntimeLogger logger =
KnowledgeRuntimeLoggerFactory.newFileLogger(ksession, test);
ksession.getWorkItemManager().registerWorkItemHandler(Human Task, new
WSHumanTaskHandler());
// start a new process instance
MapString, Object params = new HashMapString, Object();
params.put(employee, Administrator);
ksession.startProcess(com.sample.evaluation, params);
} catch (Throwable t) {
t.printStackTrace();
}
}
private static KnowledgeBase readKnowledgeBase() throws Exception {
KnowledgeBuilderConfiguration conf =
KnowledgeBuilderFactory.newKnowledgeBuilderConfiguration();
// ((PackageBuilderConfiguration) conf).initSemanticModules();
// ((PackageBuilderConfiguration)
conf).loadSemanticModule(BPMN2SemanticModule.conf);
KnowledgeBuilder kbuilder =
KnowledgeBuilderFactory.newKnowledgeBuilder(conf);
// kbuilder.add(ResourceFactory.newClassPathResource(hellowWorld.bpmn),
ResourceType.DRF);
kbuilder.add(ResourceFactory.newClassPathResource(HelloWorldSample.rf),
ResourceType.DRF);
kbuilder.add(ResourceFactory.newClassPathResource(assignment.dsl),
ResourceType.DSL);
kbuilder.add(ResourceFactory.newClassPathResource(assignment.dslr),
ResourceType.DSLR);
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;
}
private static void startHumanTaskComponent(){
EntityManagerFactory emf =
Re: [rules-users] Drools 5.1 Persistence without JTA
initially thanks for ur replies. i downloaded the sample given Pablo Nussembaum but having problem drools-spring dependency saying missing artifact...tried manually browsing also but no good cant find it. to tolitius, thanks for that code snippet.what i tried was the same just i didnt had the drools tags if u can just pass the whole test case ( i am a newbie to this Drools-Spring integration thing so i need to find it out how it goes) the problem with mine was the table were getting created by the annotations but when trying to start process it gives exception saying could not commit session in SingleSessionCommandService.java file which actually calls the new InitialContext().lookup(java:UserTransaction) which actually fails thanks and regards - Keep Working KiranP -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Drools-5-1-Persistence-without-JTA-tp828933p830964.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
