November 2013 - rules-users - Jboss List Archives

How to use type-safe enums in rule condition

by droolster

Hello, I would like to use type-safe enums in my rules. At the moment I have situation like this: public class Country { private String name; // getter/setters } rule "Country" when Country ( name == "USA" ) then DO SOMETHING end I would like to have something like this: public enum Country { USA () // list of all countries in the world } and in the rule I would like to do this: rule "Country" when Country ( name == Country.USA ) then DO SOMETHING end Is that possible? Thanks in advance for your help. -- View this message in context: http://drools.46999.n3.nabble.com/How-to-use-type-safe-enums-in-rule-cond... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 4 months

4
6
0 / 0

Problem in writing rule and apply DSL

by braveheart85

Hello guys, I really need your help. I'm writing a DSL file in order to allow my application user to write their simple rules. I have queries of this typology: $a: Data( ) $b: Year( ) from $a.years $c: Person( ) from $b.persons dsl mapping (inline version): there are persons=$a: Data( ) $b: Year( ) from $a.years $c: Person( ) from $b.persons now if i would add attribute to person i can't, for example to get persons over 18 years old. If i write: there are persons - age more than 18 drools engine try to add attribute to Data object, probably because it is first object in line. To resolve this problem i should write query something like: $c: Person( ) from ( Year( ).persons from Data( ).years ) In this way i can add attribute to Person instead of Data. Unfortunatly i don't know how can i get it. Someone can help me please. Best Regards -- View this message in context: http://drools.46999.n3.nabble.com/Problem-in-writing-rule-and-apply-DSL-t... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 4 months

3
5
0 / 0

"distinct" operator in a query

by braveheart85

Hello guys, I make a very simple question, especially for a curiosity. I have this query: query "QuerySelected" $result: Person( identifierCode == "ABCDEF12H45S100A" ) $y: YearData( id == $result.identifierCode ) exists Vehicle( ) from $y.vehicles end With this query i get two equal person results because there are two annual that matches with condition. There is a simple way in drools to apply "distinct" operator or avoid this behaviour. Best regards Andrea -- View this message in context: http://drools.46999.n3.nabble.com/distinct-operator-in-a-query-tp4026762.... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 4 months

2
5
0 / 0

Out of Mem and thousand threads : Disabling JIT ?

by Raphael Jolivet

Hi, I am using Drools for some time an I recently increased the number of rules and their complexity. I have now about 200 rules, for 700 x 200 facts (rules on a cartesian product on them). Since then, the computation of rules explodes with the following exception : java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.$$YJP$$start0(Native Method) [na:1.6.0_30] at java.lang.Thread.start0(Thread.java) [na:1.6.0_30] at java.lang.Thread.start(Thread.java:640) [na:1.6.0_30] at java.util.concurrent.ThreadPoolExecutor.addIfUnderMaximumPoolSize(ThreadPoolExecutor.java:727) ~[na:1.6.0_30] at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:657) ~[na:1.6.0_30] at org.drools.rule.constraint.MvelConstraint.jitEvaluator(MvelConstraint.java:232) ~[org-drools-drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:197) ~[org-drools-drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.rule.constraint.MvelConstraint.isAllowed(MvelConstraint.java:157) ~[org-drools-drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:137) ~[org-drools-drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59) ~[org-drools-drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:141) ~[org-drools-drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59) ~[org-drools-drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:141) ~[org-drools-drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59) ~[org-drools-drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:141) ~[org-drools-drools-core-5.5.0.Final.jar:5.5.0.Final] at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59) ~[org-drools-drools-core-5.5.0.Final.jar:5.5.0.Final] ... After Googling a bit, I saw that this is due to JIT compilation of my rules. For some reason, each one seem to create a Thread and ends up with thousands of them. First of all, I find a bit risky that the JIT compilation is fired by some *hardcoded *threshold : I was not expecting such a technical tricky optimization to randomly activate depending of my data. Anyway, I wanted to disable this JIT thing. I saw that the disabling is only available since *5.5.0.-final* right ? I have switched to that version but I can't seem to be able to disable it. I have tried both : *-Dmvel2.disable.jit=true* (which would not be a viable solution for production anyway : We can't rely on some settings of the server to ensure things work) And also this : *OptimizerFactory.setDefaultOptimizer("reflective"); *(found here<http://mvel.codehaus.org/Disabling+the+JIT+Compiler> ) Any help would be appreciated. Brgds, Raphael

12 years, 4 months

3
5
0 / 0

Scala, Groovy, Clojure, etc. Bindings

by sirinath

Hi, Is it possible to provide binding which make Drools and Other related projects feel more like the concepts of other JVM languages. Suminda -- View this message in context: http://drools.46999.n3.nabble.com/Scala-Groovy-Clojure-etc-Bindings-tp402... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 4 months

2
2
0 / 0

drools camel server execution has result but reponse empty result

by scarlettxu

Hi Expert, I have a strange problem need your kind assistance! I have deployed the drools server 5.5.0 to my tomcat, and I can use the wrapped testing case without problem in the last week when I type http://localhost:8080/camel-client/test.jsp then the response will be Reuqest: "Hello World" Response: "Hello World" Today, I run it normally at first, but later I want to try to use the https so I change the url to https://localhost:8443/camel-client/test.jsp however the result is Reuqest: "Hello World" Response: "" then I change back to use http, still have empty response I have checked the log, there is execution result returned back, but just the response is empty Anybody can kindly check my problem? I have debug it for a whole day, but have not figure out this strange problem. below is the log for reference 19:23:56,015 TRACE CxfRsProducer:183 - Response body = org.apache.cxf.jaxrs.impl.ResponseImpl@26d6466f 19:23:56,016 TRACE DefaultCxfRsBinding:195 - Populate external header Date=[Tue, 12 Nov 2013 11:23:55 GMT] as Date 19:23:56,016 TRACE DefaultCxfRsBinding:195 - Populate external header Content-Length=[268] as Content-Length 19:23:56,016 TRACE DefaultCxfRsBinding:195 - Populate external header Content-Type=[text/plain] as Content-Type 19:23:56,016 TRACE DefaultCxfRsBinding:195 - Populate external header Server=[Apache-Coyote/1.1] as Server 19:23:56,017 TRACE DefaultTypeConverter:88 - Converting org.apache.cxf.jaxrs.impl.ResponseImpl -> java.lang.String with value: org.apache.cxf.jaxrs.impl.ResponseImpl@26d6466f 19:23:56,018 TRACE DefaultTypeConverter:88 - Fallback type converter StaticMethodFallbackTypeConverter: public static java.lang.Object org.apache.camel.component.cxf.converter.CxfConverter.convertTo(java.lang.Class,org.apache.camel.Exchange,java.lang.Object,org.apache.camel.spi.TypeConverterRegistry) converted type from: java.lang.String to: org.apache.cxf.jaxrs.impl.ResponseImpl 19:23:56,018 TRACE InstrumentationProcessor:88 - to: Recording duration: 182 millis for exchange: Exchange[Message: <?xml version='1.0' encoding='UTF-8'?><execution-results><result identifier="message"><org.test.Message><text>echo:Hello World</text></org.test.Message></result><fact-handle identifier="message" external-form="0:2:1391417336:1391417336:2:DEFAULT"/></execution-results>] 19:23:56,018 TRACE DefaultTypeConverter:82 - Converting org.apache.cxf.jaxrs.impl.ResponseImpl -> java.lang.String with value: org.apache.cxf.jaxrs.impl.ResponseImpl@26d6466f 19:23:56,019 TRACE DefaultTypeConverter:82 - Fallback type converter StaticMethodFallbackTypeConverter: public static java.lang.Object org.apache.camel.component.cxf.converter.CxfConverter.convertTo(java.lang.Class,org.apache.camel.Exchange,java.lang.Object,org.apache.camel.spi.TypeConverterRegistry) converted type from: java.lang.String to: org.apache.cxf.jaxrs.impl.ResponseImpl 19:23:56,019 TRACE AsyncProcessorHelper:82 - Exchange processed and is continued routed synchronously for exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 -> Exchange[Message: ] 19:23:56,019 TRACE DefaultTypeConverter:82 - Converting org.apache.cxf.jaxrs.impl.ResponseImpl -> java.lang.String with value: org.apache.cxf.jaxrs.impl.ResponseImpl@26d6466f 19:23:56,020 TRACE DefaultTypeConverter:82 - Fallback type converter StaticMethodFallbackTypeConverter: public static java.lang.Object org.apache.camel.component.cxf.converter.CxfConverter.convertTo(java.lang.Class,org.apache.camel.Exchange,java.lang.Object,org.apache.camel.spi.TypeConverterRegistry) converted type from: java.lang.String to: org.apache.cxf.jaxrs.impl.ResponseImpl 19:23:56,020 TRACE AsyncProcessorHelper:82 - Exchange processed and is continued routed synchronously for exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 -> Exchange[Message: ] 19:23:56,020 TRACE DefaultTypeConverter:82 - Converting org.apache.cxf.jaxrs.impl.ResponseImpl -> java.lang.String with value: org.apache.cxf.jaxrs.impl.ResponseImpl@26d6466f 19:23:56,021 TRACE DefaultTypeConverter:82 - Fallback type converter StaticMethodFallbackTypeConverter: public static java.lang.Object org.apache.camel.component.cxf.converter.CxfConverter.convertTo(java.lang.Class,org.apache.camel.Exchange,java.lang.Object,org.apache.camel.spi.TypeConverterRegistry) converted type from: java.lang.String to: org.apache.cxf.jaxrs.impl.ResponseImpl 19:23:56,021 TRACE AsyncProcessorHelper:82 - Exchange processed and is continued routed synchronously for exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 -> Exchange[Message: ] 19:23:56,021 TRACE DefaultTypeConverter:82 - Converting org.apache.cxf.jaxrs.impl.ResponseImpl -> java.lang.String with value: org.apache.cxf.jaxrs.impl.ResponseImpl@26d6466f 19:23:56,022 TRACE DefaultTypeConverter:82 - Fallback type converter StaticMethodFallbackTypeConverter: public static java.lang.Object org.apache.camel.component.cxf.converter.CxfConverter.convertTo(java.lang.Class,org.apache.camel.Exchange,java.lang.Object,org.apache.camel.spi.TypeConverterRegistry) converted type from: java.lang.String to: org.apache.cxf.jaxrs.impl.ResponseImpl 19:23:56,022 TRACE AsyncProcessorHelper:82 - Exchange processed and is continued routed synchronously for exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 -> Exchange[Message: ] 19:23:56,023 TRACE DefaultErrorHandler:513 - Is exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 interrupted? false 19:23:56,023 TRACE DefaultErrorHandler:496 - Is exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 done? true 19:23:56,023 TRACE DefaultTypeConverter:82 - Converting org.apache.cxf.jaxrs.impl.ResponseImpl -> java.lang.String with value: org.apache.cxf.jaxrs.impl.ResponseImpl@26d6466f 19:23:56,023 TRACE DefaultTypeConverter:82 - Fallback type converter StaticMethodFallbackTypeConverter: public static java.lang.Object org.apache.camel.component.cxf.converter.CxfConverter.convertTo(java.lang.Class,org.apache.camel.Exchange,java.lang.Object,org.apache.camel.spi.TypeConverterRegistry) converted type from: java.lang.String to: org.apache.cxf.jaxrs.impl.ResponseImpl 19:23:56,024 TRACE AsyncProcessorHelper:82 - Exchange processed and is continued routed synchronously for exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 -> Exchange[Message: ] 19:23:56,024 TRACE Pipeline:90 - Processing exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 is continued being processed synchronously 19:23:56,024 TRACE Pipeline:186 - ExchangeId: ID-icilszxnb126-46148-1384255363195-1-1 should continue routing: true 19:23:56,024 TRACE DefaultTypeConverter:113 - Converting org.apache.cxf.jaxrs.impl.ResponseImpl -> java.lang.String with value: org.apache.cxf.jaxrs.impl.ResponseImpl@26d6466f 19:23:56,025 TRACE DefaultTypeConverter:113 - Fallback type converter StaticMethodFallbackTypeConverter: public static java.lang.Object org.apache.camel.component.cxf.converter.CxfConverter.convertTo(java.lang.Class,org.apache.camel.Exchange,java.lang.Object,org.apache.camel.spi.TypeConverterRegistry) converted type from: java.lang.String to: org.apache.cxf.jaxrs.impl.ResponseImpl 19:23:56,025 TRACE Pipeline:113 - Processing exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 >>> Exchange[Message: ] 19:23:56,025 TRACE BeanProcessor:95 - Using a custom adapter as bean invocation: org.drools.camel.component.PostCxfrs@1a6313e1 19:23:56,026 TRACE DefaultTypeConverter:82 - Converting java.lang.String -> java.lang.String with value: 19:23:56,026 TRACE AsyncProcessorHelper:82 - Exchange processed and is continued routed synchronously for exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 -> Exchange[Message: ] 19:23:56,026 TRACE DefaultTypeConverter:82 - Converting java.lang.String -> java.lang.String with value: 19:23:56,027 TRACE AsyncProcessorHelper:82 - Exchange processed and is continued routed synchronously for exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 -> Exchange[Message: ] 19:23:56,027 TRACE DefaultErrorHandler:513 - Is exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 interrupted? false 19:23:56,027 TRACE DefaultErrorHandler:496 - Is exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 done? true 19:23:56,027 TRACE DefaultTypeConverter:82 - Converting java.lang.String -> java.lang.String with value: 19:23:56,028 TRACE AsyncProcessorHelper:82 - Exchange processed and is continued routed synchronously for exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 -> Exchange[Message: ] 19:23:56,028 TRACE Pipeline:90 - Processing exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 is continued being processed synchronously 19:23:56,028 TRACE Pipeline:186 - ExchangeId: ID-icilszxnb126-46148-1384255363195-1-1 should continue routing: false 19:23:56,028 TRACE DefaultTypeConverter:101 - Converting java.lang.String -> java.lang.String with value: 19:23:56,028 TRACE Pipeline:101 - Processing complete for exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 >>> Exchange[Message: ] 19:23:56,029 TRACE DefaultTypeConverter:82 - Converting java.lang.String -> java.lang.String with value: 19:23:56,029 TRACE AsyncProcessorHelper:82 - Exchange processed and is continued routed synchronously for exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 -> Exchange[Message: ] 19:23:56,029 TRACE DefaultTypeConverter:82 - Converting java.lang.String -> java.lang.String with value: 19:23:56,029 TRACE AsyncProcessorHelper:82 - Exchange processed and is continued routed synchronously for exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 -> Exchange[Message: ] 19:23:56,030 TRACE DefaultTypeConverter:82 - Converting java.lang.String -> java.lang.String with value: 19:23:56,030 TRACE AsyncProcessorHelper:82 - Exchange processed and is continued routed synchronously for exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 -> Exchange[Message: ] 19:23:56,030 TRACE DefaultErrorHandler:513 - Is exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 interrupted? false 19:23:56,030 TRACE DefaultErrorHandler:496 - Is exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 done? true 19:23:56,031 TRACE DefaultTypeConverter:88 - Converting java.lang.String -> java.lang.String with value: 19:23:56,031 TRACE InstrumentationProcessor:88 - route: Recording duration: 200 millis for exchange: Exchange[Message: ] 19:23:56,031 TRACE DefaultTypeConverter:203 - Converting java.lang.String -> java.lang.String with value: 19:23:56,031 TRACE DefaultUnitOfWork:203 - UnitOfWork done for ExchangeId: ID-icilszxnb126-46148-1384255363195-1-1 with Exchange[Message: ] 19:23:56,032 TRACE DefaultInflightRepository:58 - Total 0 inflight exchanges. Last removed: ID-icilszxnb126-46148-1384255363195-1-1 19:23:56,032 TRACE DefaultTypeConverter:82 - Converting java.lang.String -> java.lang.String with value: 19:23:56,032 TRACE AsyncProcessorHelper:82 - Exchange processed and is continued routed synchronously for exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 -> Exchange[Message: ] 19:23:56,032 TRACE DefaultTypeConverter:82 - Converting java.lang.String -> java.lang.String with value: 19:23:56,032 TRACE AsyncProcessorHelper:82 - Exchange processed and is continued routed synchronously for exchangeId: ID-icilszxnb126-46148-1384255363195-1-1 -> Exchange[Message: ] 19:23:56,033 TRACE DefaultTypeConverter:155 - Converting java.lang.String -> java.lang.String with value: -- View this message in context: http://drools.46999.n3.nabble.com/drools-camel-server-execution-has-resul... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 4 months

1
1
0 / 0

Re: [rules-users] Calling RuleSet from a Function/Another Rule

by Lance Leverich

Hi Ayon, I'm not personally familiar with Blaze, but I can tell you that in Drools, rules are not something that you "call". In Drools, rules are evaluated whenever the facts in your WorkingMemory change; and the consequences are executed according to agenda/rule-flow group, and salience settings. When the consequence of a rule introduces changes (adds a new fact, updates an existing fact, removes/retracts an existing fact) to the WorkingMemory, the rules that may be affected by that change are re-evaluated. Any new consequences are scheduled for execution, based upon the agenda/rule-flow group and/or salience settings. Any previously scheduled consequences may also be removed from the schedule, if the rule which caused them to be scheduled is no longer true. All of that said, if what you are wanting to accomplish is controlling the order of when consequences are executed then you should learn more about agendas, rule-flow groups, and salience. Otherwise, in order to cause a rule's consequences to execute, you should make sure your facts support the rule. Hope this helps, Lance Leverich

12 years, 4 months

1
0
0 / 0

Access global functions in Test Scenarios in Guvnor

by franky0517

Hi, I have written a function in Guvnor. Now I am creating a test scenario where I want to call this function. As test scenario doesnt have "Free from DRL" option, is there an another way to call the function ? Thanks, Asim -- View this message in context: http://drools.46999.n3.nabble.com/Access-global-functions-in-Test-Scenari... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 4 months

2
1
0 / 0

Calling RuleSet from a Function/Another Rule

by Chakraborty, Ayon (Genworth, Contractor)

Hello All, We are trying to migrate from Blaze to Drools Guvnor. In Blaze Rule Language, we have functions where depending on conditions, we can call one RuleSet or Decision Table. Is there any functionality in Drools where I can call rule inside another rule depending on some conditions. ( Suppose I have my DRL file and I want to call another rule in the action of one rule) Is that possible in Drools Guvnor 5.5? Any possible alternative ways in Drools? Thanks, Ayon Chakraborty

12 years, 4 months

1
0
0 / 0

Business Rules Webinar - we're looking for speakers

by mkasprzyk

Hello everyone! I'm writing to you regarding a Business Rules webinar we are organizing. We are searching for speakers able to deliver 2-hour sessions in topics given below. (All the information below is just a proposition and still can be changed. Your suggestions are welcome!) Event details: Business Rules Applied - From Theory to Business A series of four 2-hour webinars on Business Rules Approach date: 22-23th January 2014 (Wed-Thu) or 12-13th March 2014 (Wed-Thu) language: English Proposed agenda: Day 1 (Wednesday, 22.01.14 or 12.03.14) 15:00-17:00 (CET) - Business Rules Approach - know what your business is doing 17:30-19:30 (CET) - Rules in Action, from requirements to executable rules in examples Day 2 (Thursday, 23.01.14 or 13.03.14) 15:00-17:00 (CET) - Combining Business Rules and Processes 17:30-19:30 (CET) - Different solutions in Business Rules approach* In January/March CET = GMT+1. *BR Solutions session We'd like to dedicate this session of the webinar to specific tools that make implementing BRs easier, so we'd like to offer four 30-minute blocks to 4 different BRMS vendors. Structure of the presentations: (sessions 1-3) 15 min - TED-like speech about your personal story connected to the business rules (e.g. success/failure stories)** 1h 15 min - case study/software use presentation 20 min - Q&A 10 min - your company promotion presentation **TED-like presentation notice I am also a TEDx organizer and I believe in TED-like talk form and spreading ideas. Therefore we would like to make sure that the first 15-30min of the presentation explains the benefits and vision of business rules approach and automation and the way it will impact the world we live in. Why should you do it? -strengthen your personal brand and/or the brand of your company, -your company will have dedicated pag on webinar's website, -have the opportunity to present your company in front of a targeted audience, -expand your business network, -optionally offered presentation coaching to prepare a TED-like speech, -have access to other sessions of the webinar. Final words If you are interested in leading one of the sessions or you have any questions, don't hesitate to write to mike(a)nobleprog.com. Have a good day! Mike Kasprzyk -- View this message in context: http://drools.46999.n3.nabble.com/Business-Rules-Webinar-we-re-looking-fo... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 4 months

1
0
0 / 0

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

rules-users November 2013