Re: [rules-users] Rules with C++
You have different options but the choice will depend on your performance requirements and runtime environment. Remove service You can consume a service in C++ using Rest, SOAP or Corba. This service will be developed using Java and Drools. You could also investigate the Drools Server for options of remote invocation. Local Component You can use JNI to invoke C/C++ from Java or Java from C/C++ You can make a JavaBean available as an ActiveX component On 13/04/2011 11:05, Sumeet Karawal wrote: Hi All, I have my application written in C++. How can I use Drools to make rules that work on C++ facts. Also How to use BRMS in this case? It would be very helpful if somebody could guide me on this. Thanks and Regards, Sumeet Karawal Mailto: sumeet.kara...@tcs.com =-=-= Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Corneil du Plessis - Software Architect TSC Technologies (Pty) Ltd (o) +27 11 431 1666 (f) +27 86 674 2962 (c) +27 82 530 9259 Email: corn...@tsctech.com mailto:corn...@tsctech.com www.tsctech.com http://www.tsctech.com ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Expose JBoss rules as webservice
The short high-level answer is: You can use JBoss Tools or Eclipse plugins for Drools to create various kinds of rules. You can use JBoss Drools Guvnor to manage rules and create rules. Before you can create rules you need to provide a data model of some kind, typically a collection of Java classes that will be the 'facts' that rules are applied to. In order to execute rules you initialise working memory with rules and facts and the rules are fired. This implies that a lot of what happens is specific to your data model. Thus you will have to develop that code that decides how your model interacts with the rules. Drools provides an agent that can interact with Drools Guvnor to retrieve the rules instead of using some local storage. Your code will have to initialise the agent and then rules will be retrieved from Guvnor and executed locally. You can also use integration tools like Apache Camel or Spring Integration and invoke Drools from within an integration flow. Drools Server provides remote execution of rules via a RESTful API and other mechanisms for Apache Camel. Hope this gives you some direction. On 17/02/2011 11:38, vkishorekumar wrote: Hi Travis, Thank you for the prompt response. So if that is the case, say if I use JBoss BRMS, how do I make my rules available to the external world (if not through webservice)? Is a GUI the only way to access the business rules? There must be some programmatic way of accessing the JBoss rules. Sorry for confusing you with the Drools server, because I am myself confused with the architecture as in where will Drools fit in and where will JBoss BRMS fit in? All I need is to implement business rules using JBoss product. Thanks Regards Kishore -- Corneil du Plessis - Software Architect TSC Technologies (Pty) Ltd (o) +27 11 431 1666 (f) +27 86 674 2962 (c) +27 82 530 9259 Email: corn...@tsctech.com mailto:corn...@tsctech.com www.tsctech.com http://www.tsctech.com ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Rewriting rules
You should consider changing your rules to use the data as facts which are inserted into working memory or loaded by some of the rules. If you can provide some sample rules it might be possible to suggest alternate options. On 09/02/2011 16:06, jwillans2 wrote: Hello, We have a rule set that need to be rewritten before being loaded into the knowledge base. The rewrite can only be determined by data known at runtime. Currently we can achieve this by performing string subsitutions on the rules, however I'd like to explore more efficient (and less clumsy) ways of doing this. It looks like rule templates could be a less error-prone way of achieving the same end through the use of place holders, but it still requires for the resultant rule strings to be recompiled. I was wondering whether it is practical to store the rules in compiled form, and then perform the rewriting on the loaded data structures? Any suggestions and/or experience of techniques would be very welcome. Thanks, James -- Corneil du Plessis - Software Architect TSC Technologies (Pty) Ltd (o) +27 11 431 1666 (f) +27 86 674 2962 (c) +27 82 530 9259 Email: corn...@tsctech.com mailto:corn...@tsctech.com www.tsctech.com http://www.tsctech.com ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Drools Java and .Net
We have successfully used IKVM to create a dlls for our Drools application. The performance was a bit slower on IKVM/.Net as in Sun Java 5. We dynamically load a large number of rules and found the largest impact is to the 'load time' The performance impact was not such that it would make a network call viable; especially with 1000s of clients. Apart from the performance impact the behaviour is exactly the same. On 25/01/2011 17:04, FrankVhh wrote: Hi all, Suppose that you have a rule engine that needs to be embedded on the machine and that there is no way to call the rules as a service from a centralized server, what approach would one have to choose to make Drools and .NET work? The rulke engine will have to be cached to improve performance, so that part, until there is an up-to-date version of Drools.NET, has to be in Java anyway. Then you expose your JAVA code as a (local) service and let .NET call it? Or am I seeing things wrong here? I must stipulate that I am not an expert in .NET at all, and I know only barely enough Java to get Drools working :-). Thanks for your help. Kind regards, Frank salaboy wrote: Yes, and if you want to use the rule engine from .NET you can use the Drools Server that expose the Drools Runtime in REST and SOAP interfaces :) Greetings. 2011/1/19 Michael Anstismichael.ans...@gmail.com Hi, I believe the .NET implementation of Drools is somewhat out dated. However Drools ticks all your other requirements. With kind regards, Mike 2011/1/19 Gorantla, Bhaskar (GE Capital)bhaskar.goran...@ge.com We are looking for a rules engine that has the following characteristics. 1. Supports both Java and .net 2. Provides a business user friendly UI for creating/editing rules 3. Supports versioning 4. The rues in the rules repository are accessible to both Java and .net applications – Nice to have Do you know whether Drools supports all the above? Thanks ___ 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 -- - CTO @ http://www.plugtree.com - MyJourney @ http://salaboy.wordpress.com - Co-Founder @ 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 -- Corneil du Plessis - Software Architect TSC Technologies (Pty) Ltd (o) +27 11 431 1666 (f) +27 86 674 2962 (c) +27 82 530 9259 Email: corn...@tsctech.com mailto:corn...@tsctech.com www.tsctech.com http://www.tsctech.com ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] How to Analyze Rule Test Coverage?
Your can use the various EventListeners like ProcessEventListener to collect statistics about rule execution while your tests are executing. On 21/01/2011 11:58, hyjshanghai wrote: I am now using Cobertura to evaluate the test coverage on my Java application. However, Drools rules are not counted by Cobertura, because classes for rules are dynamically created and therefore not instrumented by Cobertura for static analysis. How can we automatically analyze the test coverage on Drools rules? ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Speed up inserting of rules into knowledge base
You should only repeat knowledgeBuilder.add(resource, ResourceType.DRL); for each rule. The next thing you can do is to serialize the compiled rule packages. You should also consider using Guvnor to manage your rules. On 07/01/2011 14:05, Piotr Jedrychowski wrote: Hello. I'm loading a big amount of rules during starting of JBoss (2 rules). All rules (in string format) are available before JBoss startup - they are stored into database. Rules are loaded one by one and it takes about 90 minutes. I want to speed up this process. Is there something like bulk load for inserting rules into knowledge base or another smart way to fast loading a big amount of rules? I'm using: 1) Drools 5.1 2) JBoss 4.2.3 My source code looks like this: String rule = ... Resource resource = ResourceFactory.newReaderResource(new StringReader(rule)); KnowledgeBuilder knowledgeBuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); knowledgeBuilder.add(resource, ResourceType.DRL); knowledgeBase.addKnowledgePackages(knowledgeBuilder.getKnowledgePackages()); Regards, Piotr ___ 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] Speed up inserting of rules into knowledge base
you may reconsider the structure of the rules. Push instead of pull. This means compare the file time or content to the database and only recreate rules that have modified. This way you can update the serialized packages where appropriate. Without knowing what your rules looks like I can offer the following: Consider using decision tables where the rules are similar but based on data. Consider having rules that to retrieve the data instead of rules generated from the data. Consider that some of the data may be facts and not rules. If you can generate rules from data then you can write rules that use the data as facts. On 07/01/2011 16:16, Piotr Jedrychowski wrote: Part: knowledgeBuilder.add(resource, ResourceType.DRL); is the most expensive part of my source code - rest of instructions are nothing when you compare them to above line. I cannot serialize the compiled rule packages because rules are generated from data read from database and this data isn't static. Data is generated before loading rules from files that user can change - so I have to do this: 1) read files (which could be changed by user since last JBoss startup) 2) process files and generate rows for database 3) get rows from database and generate rules for Drools Rules aren't stored directly into database - I wasn't accurate in my previous e-mail. - sorry. On 2011-01-07 14:00, Corneil du Plessis wrote: You should only repeat knowledgeBuilder.add(resource, ResourceType.DRL); for each rule. The next thing you can do is to serialize the compiled rule packages. You should also consider using Guvnor to manage your rules. On 07/01/2011 14:05, Piotr Jedrychowski wrote: Hello. I'm loading a big amount of rules during starting of JBoss (2 rules). All rules (in string format) are available before JBoss startup - they are stored into database. Rules are loaded one by one and it takes about 90 minutes. I want to speed up this process. Is there something like bulk load for inserting rules into knowledge base or another smart way to fast loading a big amount of rules? I'm using: 1) Drools 5.1 2) JBoss 4.2.3 My source code looks like this: String rule = ... Resource resource = ResourceFactory.newReaderResource(new StringReader(rule)); KnowledgeBuilder knowledgeBuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); knowledgeBuilder.add(resource, ResourceType.DRL); knowledgeBase.addKnowledgePackages(knowledgeBuilder.getKnowledgePackages()); Regards, Piotr ___ 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 ___ 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] QA features in BRMS
We did a project where we developed a rule console to manage the lifecycle of rules by managing unit-tests and scenario tests and executing those on rule changes to ensure deployed rules pass the tests. On 30/12/2010 15:03, Benson Fung wrote: Yes, I tried QA analysis. But it only can find out the problems of the individual rules like what you said. I tried to develop two rules with sames conditions but different consequences and do the QA analysis, it cannot detect it unfortunately. :( 2010/12/30 Esteban Aliverti esteban.alive...@gmail.com mailto:esteban.alive...@gmail.com I think QA analysis should find some of those problems. Did you try it? As far as I know, it looks for range completeness, missing gaps, etc. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com 2010/12/30 Wolfgang Laun wolfgang.l...@gmail.com mailto:wolfgang.l...@gmail.com The general case would be extremely difficult to solve. It would require heavy expression manipulation. Consider a very simple variation: X($f: foo) Y(bar == $f) as compared to Y($b: bar) X(foo == $b) And you can play this game at any level of complexity. And even your straightforward case would require the consideration of rule attributes, since there would not be a conflict if they are in different agenda groups, etc. -W 2010/12/30 Benson Fung benson.red...@gmail.com mailto:benson.red...@gmail.com: The conflict is like : E.g. If (X = 90) then Score = 10; If (X = 90) then Score = 100; Can the BRMS detect this? On Thu, Dec 30, 2010 at 5:52 PM, Wolfgang Laun wolfgang.l...@gmail.com mailto:wolfgang.l...@gmail.com wrote: Please define conflict. -W 2010/12/30 Benson Fung benson.f...@redhat.com mailto:benson.f...@redhat.com: I would like to check if there is any conflict among the created rules in the BRMS 5.1. Can the QA/Verify can check this out? On Thu, Dec 30, 2010 at 5:24 PM, Wolfgang Laun wolfgang.l...@gmail.com mailto:wolfgang.l...@gmail.com wrote: Please don't assume that everybody knows which features and which conflicts and which checks you have in mind. -W 2010/12/30 Benson Fung benson.red...@gmail.com mailto:benson.red...@gmail.com: Hi, Can anyone know whether QA features can provide the rule conflict checks? Thanks ___ rules-users mailing list rules-users@lists.jboss.org mailto:rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org mailto:rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Benson Fung Solution Architect, Global Services, Greater China | Redhat Hong Kong Limited || 45/F., The Lee Gardens, 33 Hysan Avenue, Causeway Bay, Hong Kong || Office : 852-31802332 || Cell : 852-98369898 || benson.f...@redhat.com mailto:benson.f...@redhat.com || http://www.hk.redhat.com|| ___ rules-users mailing list rules-users@lists.jboss.org mailto:rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org mailto:rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org mailto:rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org mailto:rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org
Re: [rules-users] Urgent..Dynamic nature of rules
Look at examples for Rule Agent and Guvnor. On 23/11/2010 18:00, nkumar wrote: Hi, Is there any way to get the rules from external source rather than loading this from .drl file every time? because of changing behavior of the rules, rule file has to be changed if a user introduces a new rule in the system. Please help me out how can we solve this. i am new to drools and even i don't know how to write rules properly. Can we store this in a database or can we save rules somewhere so that next time rather than loading this from direct rule file, we load this from that data source. User of this application is non technical and i also need to make an interface to get the rules in plane English which will convert those into rules accordingly. Guvnor is not much user friendly. Can anyone please help me out. My deadline is near. this is the structure of the rule which i need to make after loading the data. when b:Feature(featureClass.name==FrontSuspension) c:Feature(featureClass.name==FrontAxle) eval(b.attributes.Capacity=c.attributes.Capacity) then AvailabilityRuleState s = new AvailabilityRuleState(); s.setValue(A);//Available s.setReason(); s.setReference(FA-FS:1); resultState.add(s); end Please help me out. i will really appreciate your help. Thanks ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] New project is Drools Engine suitable for it ?
You have to consider the number of users and the frequency of rule changes. The persistent rules are combined at runtime into a ruleset used by the engine. Multiple sessions can be executed from a ruleset. If the User-specific rules are added to a the global rules in such a way that the criteria identifying the User is part of the matching criteria for the rule you could have a single ruleset for all users. There is an overhead to the initialization of rules which means that if performance is important you would do better to maintain a single ruleset at runtime. If the ruleset is invalidated frequently by changes to rules then it would be better to maintain a ruleset per User and build the ruleset on demand and cache the ruleset. On 2010-10-26 11:36, Gregory Czerwinski wrote: Question about Drools usage ? Hello All. I have question about using Drools in my new project. I have this kind of scenario to fufill with rules engine. Scenarios. Each user has it own set of rules that determine if he should be notified about event, and those are fully editable by system administrators. There are also global rules indicating that User should be notified – common for all users. My question is how to use Drools engine in this concert situation, as it is not global set of rules that can be putted once in to engine, but set of changing per User rules ? Thanks for help : ) ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Welcome to the rules-users mailing list
You are expecting map values to be elevated somehow from Object to Integer
and String.
By using typed attributes in the Person class you can overcome your problem.
Sent from my HTC (Android)
On Feb 21, 2010 9:28 PM, Adam Krieg spamcont...@mac.com wrote:
I’m new to Drools and having trouble accessing my Domain object which is
basically a container around a map.
class Person {
Map props;
public Map getProps();
…. Extra stuff
}
I want to create a rule that will match when Age is greater than 20 and name
is one of “Fred”, “Barney”, or “Wilma”. These entries are stored in the
Map props, so that to get age, you would call person.getProps().get(“AGE”)
rule My Rule
dialect mvel
when
$person : Person(
props[“AGE”] 20,
props[“NAME”] memberOf [“Fred”, “Wilma”,
“Barney”]
)
then
System.out.println(found match”+$person);
End
But I am running into a parsing error:
no viable alternative at input ')' in rule My Rule in pattern Person.
The second condition seems to be the problem. Can I check for membership
inside a List I create inline in mvel?
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Re: [rules-users] Weblogic rules to Drools rules.
It seems as if your rules will fit nicely into a decisiontable. Sent from my HTC (Android) On Jan 30, 2010 7:58 PM, kashif10 kash...@yahoo.com wrote: Thanks edson for you nice advise. It really reduce the memory uage from 400 mb 70 mb.. compareDiagnosis( valueName[0] in (Heart Failure) || (valueCode[0] in (402.01,402.11,402.91,402.01,402.03,402.11,402.13,402.91,402.93, 428.0 - 428.9) , valueCodeSystem[0] == 2.16.840.1.113883.6.2 )) Here I have some questions. i) we have to iterate whole valueName not only [0]. How we can do it. ii) we have not only simple valueCode matching, we can have a) Range in code such as 428.0 - 428.9, so any thing in WM having valueCode b/w this range should match. b) but we can't use simply numbers , we have to use String as we can have code having alphabet such as V32.4 c) we can have wild card usage too. e.g code in Rule can be V2* which can be match any thing at the place opf asterik in WM valuCodes. I see that Rule engine do introspection call get methods of the fields can do simple condition maching like ==, , etc. But mostly we have some complex logic in matching like I told you in pt ii) of valuecode matching. I think only sol is to call methods which will comes inside eval() If we start usig it for long rules. rules will never load stuck :(... Need your expet advise for those long complex rules. Thanks -- View this message in context: http://n3.nabble.com/Weblogic-rules-to-Drools-rules-tp126265p178895.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] Comparing Date values in Iteration for Decision Table
(m1.startDate.timem1.LDOS.time) java.util.Date has a property named time which is a long and works great for comparisons On Fri, 2010-01-29 at 04:30 -0800, Tushar wrote: Hi, I am new to drools and just started to understand it. I am trying to use Decision Table for my project, one of my requirement is to compare dates say fromDate and endDate from a POJO. I wonder if its possible to have something like this d:DroolsRequestResponse m1:majorLine (m1.startDatem1.LDOS) from m1 in my CONDITION or can i have dynamic values of parameter in the cell for each iteration. here is my excel screenshot http://n3.nabble.com/file/n143474/rules.jpg Regards, Tushar. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Is there a limit to the size of a rule?
Rules can be seen as code. If you have rules that are very complex you are going to have issues maintaining the rule before you run into limitations of engine or jvm. The idea is to keep rules as simple as possible. There are various mechanisms for dealing with rule complexities like DSL, decision tables and rule flow Sent from my HTC (Android) On Jan 29, 2010 8:58 PM, Sesh sveerar...@hotmail.com wrote: For a given rule, is there a limit to the size of the eval condition? Or are there any size considerations that one should take into account (such as max number of rules, max size of a rules file)? Thank you. Sesh -- View this message in context: http://n3.nabble.com/Is-there-a-limit-to-the-size-of-a-rule-tp143996p143996.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] Hashmap in rules
HashMap does not have a member called bioAnswers. Sent from my HTC (Android) On Jan 6, 2010 4:33 PM, Da Sun sund...@hotmail.com wrote: I got a CompileException when run the following rule. when bioAnswers:HashMap(bioAnswers.values[HEARING] == Y) reviewMsgs:LinkedList(size = 0) then reviewMsgs.add(Hearing); It will be very helpful is anyone of you rectify my mistake. Thanks, -- Your E-mail and More On-the-Go. Get Windows Live Hotmail Free. Sign up now.http://clk.atdmt.com/GBL/go/196390709/direct/01/ ___ 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] How to call a another drl file from one drl file
If you want to control the order of execution or rules you will have to look into agendas or ruleflow. On Thu, 2009-07-02 at 15:36 +0530, Amila Silva wrote: hi, I have requirement to execute a chain of rules. One rule after another and they are reusable.I need to know how to call another drl file from a drl file. or in a then part of the a rule. thanks Amila Silva ___ 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] Drolls 4.0.7 exception org.drools.RuntimeDroolsException: org.drools.base.mvel.mvelevalexpress...@1cf7491 while using matches operator
Your rule should be written as:
ruleCPR_RULE_22
dialect mvel
when
INDUD : ContactVO(districtCode matches
((UX)[ACMR][[A-Z0-9]]{3})|([A-Z0-9]++))
then
System.out.println(hello);
end
Code inside of eval is normal Java expressions.
On Sat, 2009-06-27 at 00:53 +0530, Kumar, Ravendra wrote:
Hi All,
I am using Drools 4.0.7 and when I tried to use “matches” operator it
is giving following exception
The rule logic is following
package com.logica.heca.lpr.rule;
import com.logica.heca.lpr.domain.*;
import com.logica.heca.lpr.domain.contact.*;
import com.logica.heca.lpr.domain.ruleengine.*;
import java.util.*;
ruleCPR_RULE_22
dialect mvel
when
INDUD : ContactVO();
eval(INDUD.districtCode matches
((UX)[ACMR][[A-Z0-9]]{3})|([A-Z0-9]++))
then
System.out.println(hello);
End
Note: INDUD.districtCode returns String value.
While if I changed matches operator to java method this work fine
eval(INDUD.getDistrictCode().matches(((UX)[ACMR][[A-Z0-9]]{3})|([A-Z0-9]++)));
any of your esteemed help will highly be appreciated
Thanks
Ravendra Kumar
-
org.drools.RuntimeDroolsException:
org.drools.base.mvel.mvelevalexpress...@1cf7491 :
java.lang.ClassCastException: java.lang.String cannot be cast to
java.lang.Boolean
at
org.drools.rule.EvalCondition.isAllowed(EvalCondition.java:82)
at
org.drools.reteoo.EvalConditionNode.assertTuple(EvalConditionNode.java:148)
at
org.drools.reteoo.SingleTupleSinkAdapter.createAndPropagateAssertTuple(SingleTupleSinkAdapter.java:55)
at
org.drools.reteoo.LeftInputAdapterNode.assertObject(LeftInputAdapterNode.java:116)
at
org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:22)
at
org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:162)
at org.drools.reteoo.Rete.assertObject(Rete.java:175)
at
org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:192)
at
org.drools.reteoo.ReteooWorkingMemory.doInsert(ReteooWorkingMemory.java:71)
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:911)
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:883)
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:684)
at
org.drools.reteoo.ReteooStatelessSession.execute(ReteooStatelessSession.java:143)
at
com.logica.heca.lpr.rule.RuleTester.main(RuleTester.java:44)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.intellij.rt.execution.application.AppMain.main(AppMain.java:90)
Caused by: java.lang.ClassCastException: java.lang.String cannot be
cast to java.lang.Boolean
at
org.drools.base.mvel.MVELEvalExpression.evaluate(MVELEvalExpression.java:42)
at
org.drools.rule.EvalCondition.isAllowed(EvalCondition.java:77)
... 18 more
-
Thanks and Regards,
Ravendra kumar
IT Consultant
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[rules-users] Simple rule worked in 4.0.7 and failed in 5.0.1
I ran into some problems where a fairly simple rule fails in 5.0.1 and worked in 4.0.7. I have created an issue on JIRA https://jira.jboss.org/jira/browse/JBRULES-2136 and was wondering if someone else has come across that same type of problem. The rule is: package org.drools.rules.test import org.drools.rules.test.SimpleStringType rule SimpleKeywordTest dialect java when $_theFact : SimpleStringType( stringValue matches .*\s(ADDR)\s.*|(ADDR)\s.*|.*\s(ADDR) ) then $_theFact.setValid(false); end Whenever the stringValue contains something like 'MY ADDR' the rule should fire but it doesn't in 5.0.1 Corneil ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Simple rule worked in 4.0.7 and failed in 5.0.1
Txank you On Thu, 2009-06-25 at 08:19 -0400, Edson Tirelli wrote: I added a comment to the JIRA, but replicate it here for completeness: = Due to some limitations on the way that Drools 4 handles regexps, we had to change the default escaping syntax for regexps, from single escape to double escape. In Drools 5, regexps work exactly like in Java. So, instead of doing: .*\s(ADDR)\s.*|(ADDR)\s.*|.*\s(ADDR) You need to write: .*\\s(ADDR)\\s.*|(ADDR)\\s.*|.*\\s(ADDR) If you would like to continue using regexps in the same way you did for Drools 4, i.e., with single escape (not recommended), there is a configuration that makes Drools 5 parse regexps as it did in Drools 4. Using the type safe API, you can do: KnowledgeBuilderConfiguration config = KnowledgeBuilderFactory.newKnowledgeBuilderConfiguration(); config.setOption( ProcessStringEscapesOption.NO); KnowledgeBuider kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder( conf ); If you prefer to use the property or configuration file, then it is: drools.parser.processStringEscapes = false === []s Edson 2009/6/25 Corneil du Plessis corn...@tsctech.com I ran into some problems where a fairly simple rule fails in 5.0.1 and worked in 4.0.7. I have created an issue on JIRA https://jira.jboss.org/jira/browse/JBRULES-2136 and was wondering if someone else has come across that same type of problem. The rule is: package org.drools.rules.test import org.drools.rules.test.SimpleStringType rule SimpleKeywordTest dialect java when $_theFact : SimpleStringType( stringValue matches .*\s(ADDR)\s.*|(ADDR)\s.*|.*\s(ADDR) ) then $_theFact.setValid(false); end Whenever the stringValue contains something like 'MY ADDR' the rule should fire but it doesn't in 5.0.1 Corneil ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Edson Tirelli JBoss Drools Core Development JBoss by Red Hat @ www.jboss.com ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] unable to determine value type class *** URGENT***
Srithu wrote: I have a wired behavior.. I have a set of rules and i have used drools-guvnor to packaging them... It is working in windows machines where i have jboss which is running on IBM java 5 and 6.. When i connect the same from jboss Which is running on 64 bit IBM java 6 on linux is not working... The same is working If i used 64 bit IBM java 5 on linux. I getting following exception... Please help [2009-02-11 12:30:29,697] [705980] [http-0.0.0.0-8080-12] [ERROR] [STDERR ] - org.drools.RuntimeDroolsException: unable to determine ValueType for Class [class java.lang.Object] [2009-02-11 12:30:29,698] [705981] [http-0.0.0.0-8080-12] [ERROR] [STDERR ] - at org.drools.base.ValueType.determineValueType(ValueType.java:193) [2009-02-11 12:30:29,698] [705981] [http-0.0.0.0-8080-12] [ERROR] [STDERR ] - at org.drools.base.ValueType.readResolve(ValueType.java:125) [2009-02-11 12:30:29,698] [705981] [http-0.0.0.0-8080-12] [ERROR] [STDERR ] - at sun.reflect.GeneratedMethodAccessor121.invoke(Unknown Source) [2009 -02-11 12:30:29,698] [705981] [http-0.0.0.0-8080-12] [ERROR] [STDERR ] - at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37) [2009-02-11 12:30:29,698] [705981] [http-0.0.0.0-8080-12] [ERROR] [STDERR ] - at java.lang.reflect.Method.invoke(Method.java:599) [deleted stacktrace] We are experiencing same issue on WebSphere 6.1 FP 23 on Linux and AIX. Has anyone found a resolution? Regards Corneil -- View this message in context: http://www.nabble.com/unable-to-determine-value-type-class--***-URGENT***-tp21950333p24000218.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] Help on using Drools with embedded objects
You should initialise your globals and then pass them into the session.
Your rule file will have:
global java.lang.String recipients
global java.lang.String to
global java.lang.String cc
On Mon, 2009-02-23 at 06:23 -0800, D1vy@@Ind1@ wrote:
Thanks for your help , Sudhir,
I used
rule
when $a:A(b.z.s==test);
then
end
And that solved my problem.
But I would like to know one more information about global variables.
package...
dialect java
import ..,
global java.lang.String recipients=di...@gmail.com
global java.lang.String to=x...@yahoo.com
global java.lang.String cc=a...@gmail.com
rule
when when $a:A(b.z.s==divya);
then
$a.setRecipients(recipients);
$a.setTo(to);
$a.setCC(cc);
update($a)
end
Is this feasible with Drools. I get
unable to comile myfile.drl file
[9,40]: unknown:9:40 mismatched token: [...@49,201:201='=',71,9:40];
E
exception. Could you please help me with this too.
Thanks
-D
Sudhir M-2 wrote:
Hi D,
I don't know which version of drools are you using. If u are using drools
4
or higher you can use 'from' to write rules on nested objects. All u need
to do is insert the root pbject in the working memory
Regards,
sudhir.
On Mon, Feb 23, 2009 at 2:56 PM, Divya Rajendranath
divya.rajendran...@gmail.com wrote:
Hi,
I am planning to use Drools - JBoss Rules Engine. My requirement is to
disburse mails from my application to different groups based on various
criteria. I want to use Drools here.
My object structure is as follows:
class A{
String B = ;
B b;
C c;
}
Hence Obj A has embedded objects within it, and obj B and C further has
embedded objects.
class B {
String X;
Z z;
}
class Z{
String t;
String s;
}
The decision on sending the mails based on the fields in embedded objects
of A. I pass instance of A to Drools
Format of drl file:
package...;
import ..;
rule Test
when $a:A(B(Z(s == testvalue)))
then
$a.setSomething();
update($a);
end
I wanted to know if this (accessing fields in embedded/child object) is
feasible with Drools.
I get an error saying UNable to compile myfile.drl when i try to fo
this.
Could some one look into this issue and let me know the reason for this ?
Thanks
-D
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RE: [rules-users] RE: Deploying the BRMS on Web-Sphere 6.1
I never use the 0.0 versions of IBM products, avoid the headaches and wait for at least the first fixpacks. Our existing apps moved fine from 6.0 to 6.1.0.9, did not try Drools BRMS though. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Vikrant Yagnick Sent: 23 September 2008 07:50 To: Rules Users List Subject: RE: [rules-users] RE: Deploying the BRMS on Web-Sphere 6.1 Well it is not that serious a problem as I initially thought. As I mentioned the URL(adding the index.jsp) works, so there is an easy work-around available. The main bug seems to be that if a URL is sent to WebSphere which does not have a physical file in it the filter which should kick in and re-direct does not do so. (http://www-01.ibm.com/support/docview.wss?rs=180uid=swg1PK27620) This has nothing to do with the BRMS of course and is a problem for all Web-Apps in this version of Websphere(We are using 6.1.0.0). Adding the index.jsp to the URL seems to work fine for now. I am working on the BRMS to see if there are any other side-effects of this. Maybe, we should update a Wiki or troubleshooting doc on this so that it is known to the community. Digging around IBM Support after my post, I have found quite a few bugs mentioned in version 6.1 regarding how Servlet Filters work and of some on JSF(Especially JBOSS Seam) problems with the particular version. (http://www-01.ibm.com/support/docview.wss?uid=swg1PK47367) IBM has however provided patches for all of them and I am going to give another shot at seeing the behavior after upgrading to a higher release. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Michael Neale Sent: Tuesday, September 23, 2008 5:25 AM To: Rules Users List Subject: Re: [rules-users] RE: Deploying the BRMS on Web-Sphere 6.1 Hi Vikrant. well the drools-guvnor/ doesn't use a filter so much as it is default web.xml behaviour - you can specify a welcome page, which it goes to when the root path is supplied. If Websphere 6.1 can't even do that - I would say something is seriously wrong (may be a bad install?) - you could try it with a really simple war that just has 1 jsp and a web.xml and see if it happens with it? although I think: As for servlet filters - as we use Seam, it uses servlet filters to manage lifecycles, so yes, that could be it (if its not the above). It isn't possible to replace the filters, as they do a very different job from servlets (although the difference is subtle). What would be better would be to work out what the problem is with websphere and filters I think. On Mon, Sep 22, 2008 at 9:34 PM, Vikrant Yagnick [EMAIL PROTECTED] wrote: Well it clearly is a problem with filters as the following works in WebSphere: http://localhost:9080/drools-guvnor/index.jsp However just typing http://localhost:9080/drools-guvnor does not and gives you the Ugly 500. Cheers, Vikrant From: Vikrant Yagnick Sent: Monday, September 22, 2008 4:38 PM To: Rules Users List Subject: Deploying the BRMS on Web-Sphere 6.1 Hi All, Has anyone been able to deploy the BRMS War file on Websphere 6.1. The BRMS deploys without problems , but I get the following error when I try to access the BRMS: Error 500: com.ibm.ws.wswebcontainer.extension.DefaultExtensionProcessor incompatible with com.ibm.wsspi.webcontainer.servlet.IServletWrapper. However, the WebDAV servlet still works. I dug around a little, and have found that this problem has occurred for other web-applications as well who have provided a workaround: http://wiki.merbivore.com/pages/deploying-a-merb-application-to-a-jee- container-us (Read Step 7) The problem seems to be related to Servlet-Filters. These do not seem to work correctly with Websphere 6.1. In the site mentioned they have replaced the servlet-filter with a normal server. (The BRMS seems to use a servlet filter for /* url mapping). I have seen posts on other forums regarding the BRMS deployment on Websphere 6.1 but no answers as to how to make this work. Any, help would be appreciated. Cheers, Vikrant MASTEK LTD. Mastek is in NASSCOM's 'India Top 20' Software Service Exporters List. In the US, we're called MAJESCOMASTEK ~~ Opinions expressed in this e-mail are those of the individual and not that of Mastek Limited, unless specifically indicated to that effect. Mastek Limited does not accept any responsibility or liability for it. This e-mail and attachments (if any) transmitted with it are confidential and/or privileged and solely for the use of the intended person or entity to which it is addressed. Any review, re-transmission, dissemination or other use of or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. This e-mail and its
RE: [rules-users] Intermediate conclusions using strings
I would rather use a class with an Enumeration representing the conclusion. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Boaz Sent: 25 August 2008 13:09 To: rules-users@lists.jboss.org Subject: [rules-users] Intermediate conclusions using strings Hi all, I have an idea and I want to get the community feedback. Many times there are many ways to reach an intermediate conclusion. This conclusion can be used to derive higher level conclusions or actions. For example, assuming a credit application has several (or) options to conclude whether a parson is classified as gold member. Then, other rules need this information to determine the credit limit for that member. To note, the Person java class doesn't have a specialized attribute for the classification. The classification is only an internal means to simplify the application logic. To solve that problem, I thought to insert a string conclusion to the WM. Something like: rule gold member if revenue per month 1000 when ... then insert(gold member) end rule gold member if total amount 100 when ... then insert(gold member) end ... rule r100 when String(value==gold member) then... end * Is it an appropriate approach? * I know it ugly to use the same string literal in various rules. Can we avoid that? * Is there a known mechanism to handle these cases? Thanks, David -- View this message in context: http://www.nabble.com/Intermediate-conclusions-using-strings-tp19141834p1914 1834.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] Java code Vs Drools
Make sure when you do performance testing that you run through enough iterations so that the engine code benefits from HotSpot. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Harsh Jetly Sent: 13 August 2008 11:03 To: rules-users@lists.jboss.org Subject: [rules-users] Java code Vs Drools I have been evaluating the rule engine (ie Drools 4.0.4). I have created an application which has about 20 rules . I insert about 500 arraylists into the working memory and each arraylist contains about 4 objects. The rule engine picks the object that is the best match from the arraylist and stores it . This processing takes about 0.953 secs . Now this very same scenario I have implemented in using java code (if ..else)...it takes about 0.016secs . I was expecting the rule engine to give a better performance. Considering the use of alpha node caching and other factors of the rete algorithm. This is how one of the rules look in the rule file : rule P1 110 salience 1 activation-group 1 when PriorityType( pricetype == 10,20,30,40,110 ) list :ArrayList( ) t:TlbObjectAttributeData( lngAttrTypeId == 110 ) from list then result.add(t); end Am I doing something wrong or this application is not harnessing the pluses of the rule engine . If so can you please tell me which kind of application should I build to highlight the performance of a rule engine . Appreciate it Regards Harsh Jetly SOA Center of Excellence __ ___ 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] Java code Vs Drools
No HotSpot refers to the portion of the JVM that compiles java bytecode to native code and applies various optimisations over time depending on the frequency with which code is executed. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Hehl, Thomas Sent: 13 August 2008 13:47 To: 'Rules Users List' Subject: RE: [rules-users] Java code Vs Drools What does this mean? Because of garbage collection? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Corneil du Plessis Sent: Wednesday, August 13, 2008 5:42 AM To: 'Rules Users List' Subject: RE: [rules-users] Java code Vs Drools Make sure when you do performance testing that you run through enough iterations so that the engine code benefits from HotSpot. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Harsh Jetly Sent: 13 August 2008 11:03 To: rules-users@lists.jboss.org Subject: [rules-users] Java code Vs Drools I have been evaluating the rule engine (ie Drools 4.0.4). I have created an application which has about 20 rules . I insert about 500 arraylists into the working memory and each arraylist contains about 4 objects. The rule engine picks the object that is the best match from the arraylist and stores it . This processing takes about 0.953 secs . Now this very same scenario I have implemented in using java code (if ..else)...it takes about 0.016secs . I was expecting the rule engine to give a better performance. Considering the use of alpha node caching and other factors of the rete algorithm. This is how one of the rules look in the rule file : rule P1 110 salience 1 activation-group 1 when PriorityType( pricetype == 10,20,30,40,110 ) list :ArrayList( ) t:TlbObjectAttributeData( lngAttrTypeId == 110 ) from list then result.add(t); end Am I doing something wrong or this application is not harnessing the pluses of the rule engine . If so can you please tell me which kind of application should I build to highlight the performance of a rule engine . Appreciate it Regards Harsh Jetly SOA Center of Excellence __ ___ 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 ___ 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] JSR-94 and JEE integration
We use JSR-94 and have a 'RuleLoader' that uses our rule definitions and a velocity script to generate the rules and creates a ruleset from that. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Hehl, Thomas Sent: 10 June 2008 13:48 To: 'Rules Users List' Subject: RE: [rules-users] JSR-94 and JEE integration I know nothing about jsr-94, but we use drools in a webapp, servlet side only. It seems to me you could simply put your rules into a stateless session bean. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Knoster Sent: Tuesday, June 10, 2008 4:46 AM To: rules-users@lists.jboss.org Subject: [rules-users] JSR-94 and JEE integration Hi, i would like to integrate drools in jee. to be more flexible i was loking at jsr-94. as i suppose jsr-94 only addresses j2se environment, my question is: how it is possible to use drools with this specs from an ejb3 session bean? my thoughts about this brought me to the idea of injecting the rules-administrator via resource annotation to prevent the container always doing a class.forname(..) lookup. to define a j2se resource in a jee container a jca might be the best way to integrate and to assure the jee specs will not be violated. but this seams a lot of overhead to me. how do u use drools in your jee applications when not relying on the brms? any help or ideas on integrating drools with jsr-94 in jee would be great. Knosta ___ 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 ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
RE: re[rules-users] -use of an object used in a previous rule
I can't see where you insert an object of type Alpha that would fire 'pack eco' -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mounir Chattou Sent: 10 June 2008 10:34 To: rules-users@lists.jboss.org Subject: re[rules-users] -use of an object used in a previous rule Hi, I have a problem : a fact is inserted in a rule but when I cast for it in another, nothing happened, here is a simplified code to understand better : rule eco ruleflow-group economic salience 20 when a : Alpha() then Beta beta = new Beta() beta.add(a) beta.setStatus(eco) // the property status is setted insert(beta) end rule fl eco ruleflow-group economic salience 20 when f : Fl () then Fl fl = new Fl(); fl.add(f); fl.setStatus(eco)// the property status is setted insert(fl) end rule pack eco ruleflow-group economic when f : Fl(status == eco) //those two conditions are never casted ... while I inserted the facts a : Alpha(status == eco) then end Could someone explain me why ? -- View this message in context: http://www.nabble.com/re-use-of-an-object-used-in-a-previous-rule-tp17750384 p17750384.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] Question about timing rules
It should not be an issue to have an object inserted representing the current time and have rules checking against the object _ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bagwell, Allen F Sent: 05 June 2008 17:34 To: Rules Users List Subject: [rules-users] Question about timing rules Another noob question: Is there a generally understood way of implementing the concept of a time interval rule? That is, lets say I have a Drools-enabled client which is constantly receiving information from outside resources. Most of this data (and the consequences of its changes) is time sensitive, so I'm calling the fireAllRules() method in a loop every minute. And now, let's say I have a rule that in addition to being driven by incoming data changes has to be linked to a repeating clock interval or synched with wall time such that the rule only activates and fires if the data meets certain parameters AND it's been exactly 1 hour since the last check or that it will fire at the top of every wall time hour (1 PM, 2PM, 3 PM, etc.). Furthermore, timing may change. A successful rule activation and firing might do something like now change this timing so that for the next 24 hours, this rule must be examined every 30 minutes instead of every hour. My initial reading of the Drools documetation I came across the Duration, and Date-* keywords. Their descriptions didn't seem to fit the bill. I ask this because our old rules engine software that has been retired to obsolescence allowed this kind of thing to be easily set up. Coming at it in the Drools world seems a lot more challenging. Thoughts? Examples? -Allen ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] eclipse-jdtcore.jar
I am experiencing a conflict with a deployment: We used WebSphere Application Server 6.0.2.x in our integration testing environment and now the deployed application at a customer site is reporting the following exception: java.lang.NoSuchMethodError: org.eclipse.jdt.internal.compiler.CompilationResult: method getProblems()[Lorg/eclipse/jdt/core/compiler/CategorizedProblem; not found at org.drools.commons.jci.compilers.EclipseJavaCompiler$3.acceptResult(EclipseJ avaCompiler.java(Compiled Code)) at org.eclipse.jdt.internal.compiler.Compiler.handleInternalException(Compiler. java(Compiled Code)) at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java(Compiled Code)) at org.drools.commons.jci.compilers.EclipseJavaCompiler.compile(EclipseJavaComp iler.java(Compiled Code)) at org.drools.commons.jci.compilers.AbstractJavaCompiler.compile(AbstractJavaCo mpiler.java:51) at org.drools.rule.builder.dialect.java.JavaDialect.compileAll(JavaDialect.java :342) Has anyone else comes across this? I am not sure where the JAR comes from because has not version info. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
RE: [rules-users] eclipse-jdtcore.jar
Problem I have is that it is in WebSphere/lib so it gets loaded before anything in my application, when the classloader is set to parent first. When I change the class loader to parent last I run into a new set of problem with some of the XML based libraries. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Marcus Ilgner Sent: 03 June 2008 15:35 To: Rules Users List Subject: Re: [rules-users] eclipse-jdtcore.jar Hi, just as a side note: I had one project using Eclipse which already used another version of the JDT core. Encountering the same problem, I just put the core-3.2.3.v_686_R32x.jar from Drools in my project, too, and it worked without problems. Best regards Marcus On Tue, Jun 3, 2008 at 3:25 PM, Augusto Rodriguez [EMAIL PROTECTED] wrote: Hi Corneil, Unluckily I've seen that error more often that I would like. It's not a bug in drools, but is related to the dependencies of the drools-compiler. There's a big chance that you have a different version of the JDT core jar in your classpath (drools depends on version 3.2.3 - the filename of that jar is core-3.2.3.v_686_R32x.jar). This jar is used by drools to compile the rules. I hope this helps you to solve this issue. Cheers, Augusto Corneil du Plessis wrote: I am experiencing a conflict with a deployment: We used WebSphere Application Server 6.0.2.x in our integration testing environment and now the deployed application at a customer site is reporting the following exception: java.lang.NoSuchMethodError: org.eclipse.jdt.internal.compiler.CompilationResult: method getProblems()[Lorg/eclipse/jdt/core/compiler/CategorizedProblem; not found at org.drools.commons.jci.compilers.EclipseJavaCompiler$3.acceptResult(E clipseJ avaCompiler.java(Compiled Code)) at org.eclipse.jdt.internal.compiler.Compiler.handleInternalException(Compiler. java(Compiled Code)) at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java(Comp iled Code)) at org.drools.commons.jci.compilers.EclipseJavaCompiler.compile(EclipseJ avaComp iler.java(Compiled Code)) at org.drools.commons.jci.compilers.AbstractJavaCompiler.compile(Abstrac tJavaCo mpiler.java:51) at org.drools.rule.builder.dialect.java.JavaDialect.compileAll(JavaDiale ct.java :342) Has anyone else comes across this? I am not sure where the JAR comes from because has not version info. ___ 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 ___ 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
