September 2013 - rules-users - Jboss List Archives

Guvnor 5.5 pkg compile error - Unable to build expression for action

by pritispin

Hi All, I'm not able to compile an imported pkg from eclipse inside guvnor. The package is imported into defaultPackage and the process definition of the imported packages has tns:package:defaultPackage. I'm runnnig the jbpm-fullinstaller 5.5 which starts jBossAS7. The errors, when I compile the package after the process is being imported, are following: 1) Unable to analyze expression ClientTaskDetail clientTaskDetail = new ClientTaskDetail(); 2) Unable to build expression for action ClientTaskDetail Now in the process definiton, there is an import of the business class which works fine in eclipse. Seems like guvnor is not finding the business jar in the classpath. So I packaged the business jar inside the drools-guvnor.war and redeployed it (followed ant stop.demo; ant start.demo) but still keep getting the same error. Can someone please point me to a tool that will suggest what jars are being loaded into the runtime or a possible resolution for this classpath issue when it is not finding the business jar that is being reference inside the process definition. BTW, this process definiton does not have any rules inside it - it just have bunch of script tasks that references business service jars. Thanks you for your time. ~Priti -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-5-5-pkg-compile-error-Unable-to-... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 10 months

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how to check difference between two .pkg files

by maunakea

I have 2 .pkg files that are 2 snapshots for the same package from 2 different Guvnor instances. The 2 Guvnor instances are prod and test. I see that within Guvnor, it can show diff between 2 snapshots in its repository. If Guvnor can do it, there must be some API that I can use outside in a standalone program to compare between .pkg file. Anybody knows how to do this? thanks -- View this message in context: http://drools.46999.n3.nabble.com/how-to-check-difference-between-two-pkg... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 10 months

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How to the set "drools.dialect.mvel.strict" using Drools+Spring?

by Nicolás Sanchez

Hi, I am using Drools 5.2.0.CR1 and I am using Drools+String to instantiate my drools session. I would like to know how can I set the drools.dialect.mvel.strict property using Spring. Any help would be great! -- Nicolás Sanchez

12 years, 10 months

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Guvnor REST api, compile package

by anchi

Hi! I have some difficulties using Guvnor REST API, I'm using version 5.3.5. I would appreciate your help or guides how to achieve what I need. 1. I need a way to trigger package compilation remotely (and if possible to get compile errors if they occur). Is there any way to do this? (Doesn't matter if api could get deprecated, we don't plan migrating to newer version in the near future.) I want to start compilation on request, just like I would do from Guvnor console. 2. If I create a new snapshot at /.../rest/packages/{packageName}/snapshot/{snapshotName}/ does it also compile a package? 3. How to make Guvnor to update package version? When I update assets through the rest api the package version is unchanged. I found an information that a PUT request to /.../rest/packages/{packageName}/ would update the version, but when I tried it, it created a new empty package with the same name. I don't want to change any package information, I just want to save the current version, with all the assets it contains. How to do this? 3.a. Actually, I tried the PUT request to /.../rest/packages/defaultPackage/, which for some reason created a new 'defaultPackage', so I had two defaultPackages in my repository. After I deleted the newly added defaultPackage I couldn't get the contents of my original 'defaultPackage' through REST api, although I could see all the assets in Guvnor console. It behaves just as the defaultPackage is empty. How to fix this?? Thanks! -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-REST-api-compile-package-tp40257... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 10 months

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Getting data from a database(My SQL) to Guvnor

by ashish6276

Hi, Can somebody guide me on how to pull data from a database(My SQL) to Guvnor Decision table . Problem statement is to fill the rows in decision table by getting data from My SQL database. Thanks in advance. Regards, Ashish -- View this message in context: http://drools.46999.n3.nabble.com/Getting-data-from-a-database-My-SQL-to-... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 10 months

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Drools Server with alternate JSON library

by labate

Drools Server uses XStream to handle JSON. I would like to know if it is possible to use an alternate JSON library, like Jackson or GSON? Thanks. -- View this message in context: http://drools.46999.n3.nabble.com/Drools-Server-with-alternate-JSON-libra... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 10 months

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Integrate Drools with Java application, need recommendations

by srikanthmalli

Hi, I am trying Drools/Guvnor for very first time, we are planned to do Rule Authoring in Guvnor, compile, build and download the package to “Rule Package Directory”. Now the question I am having is, what is the best way to integrate Drools with our Java application? Option 1) Build the knowledge agent and start inserting the facts into memory for rule evaluation in our application. In this case Drools engine use JVM same as application JVM. Option 2) Have a Drools Server which builds the knowledge agent, and application can send the requests to Drools Server for rule evaluation using REST API. Rules will be executed in separate JVM than application JVM. I also wondering is there any performance (in terms of execution time) difference between the options mentioned above? Could you please also let me know if I am thinking in the right direction? -Sri -- View this message in context: http://drools.46999.n3.nabble.com/Integrate-Drools-with-Java-application-... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 10 months

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Potential Bug in Guvnor with usage of "from collection" and "Any of the following are true"

by Sean Su

I found that the statement generated from "from collection" is not correct when it is used in combination with "Any of the following are true" feature. There is ">" being generated in frond of the statement which is causing the compilation error. Here is the code being generated from the guided editor: java.util.Collection( size >= 1 ) from collect ( ProcedureEvent( elements contains 4658 )) ( >java.util.Collection( size == 1 ) from collect ( ProcedureEvent( elements contains 7788 , eval( contiguousDays.createNewWithPaddedTime(1, DateTimeUnit.DAY).intersectsButNotAdjacent($diagnosticEvent.contiguousDays) ))) or >java.util.Collection( size >= 2 ) from collect ( DrugEvent( elements contains 4146 )) )The code above was from the item 8 and 9 in the attached screen. As shown, the collection statement is correct when there is no "any of the following are true" involved. This seems to be a bug in Guvnor. Please let me know if this needs to be reported. Sean

12 years, 10 months

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Guvnor error when compiling imported process

by pritispin

guvnor-error.png <http://drools.46999.n3.nabble.com/file/n4025853/guvnor-error.png> Hi Guvnor Team, I am having a process definition in Eclipse and it runs fine. But we want to use Guvnor as the repository so I imported the process definition from Eclipse to Guvnor but I get following error when trying the build the package. Can someonep lease give me some clues based on the attachement. I have no logs as it does not write anything to serbver.log I'm runnnig latest jbpm-full installer 5.5 which starts the jBoss AS 7.0 server. The process definiton has tns:defaultPackage and I also included some of the jars (business related classes that are used in the script task) in the drools-guvnor.war->lib and repackage it and restarted the server but I still keep getting the same error. I don't know is it not finding the business classes/jars or is this error related to something else? How can I see more logs related to guvnor in jBoss. Thanks, Priti -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-error-when-compiling-imported-pr... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 10 months

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What is the defect tracking process for Drools Community Edition

by adarsh.chaini＠hsbcib.com

All, We are using drools as our rule engine in one of our mission critical application which is distributed in nature . Recently we have found a very bad memory leak with in the drools that does not clean the some of the listeners after the execution of the session(stateless in our case). This caused our distributed JVM's to grow quite rapidly in and we had to fix this by manually removing those listener which we never added as users of the API. What is the process to track this and find if this is already known and fixed in a later version. We are using the following components and dependencies where ${drools.ver} is <drools.ver>5.3.1.Final</drools.ver> <dependency> <groupId>org.drools</groupId> <artifactId>drools-core</artifactId> <version>${drools.ver}</version> </dependency> <dependency> <groupId>org.drools</groupId> <artifactId>drools-compiler</artifactId> <version>${drools.ver}</version> </dependency> <dependency> <groupId>org.drools</groupId> <artifactId>drools-spring</artifactId> <version>${drools.ver}</version> </dependency>  <dependency> <groupId>org.drools</groupId> <artifactId>drools-decisiontables</ artifactId> <version>${drools.ver}</version> </dependency> Thanks & Regards, Adarsh ************************************************************ HSBC Bank plc may be solicited in the course of its placement efforts for a new issue, by investment clients of the firm for whom the Bank as a firm already provides other services. It may equally decide to allocate to its own proprietary book or with an associate of HSBC Group. This represents a potential conflict of interest. HSBC Bank plc has internal arrangements designed to ensure that the firm would give unbiased and full advice to the corporate finance client about the valuation and pricing of the offering as well as internal systems, controls and procedures to identify and manage conflicts of interest. HSBC Bank plc Registered Office: 8 Canada Square, London E14 5HQ, United Kingdom Registered in England - Number 14259 Authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority ************************************************************ ----------------------------------------- SAVE PAPER - THINK BEFORE YOU PRINT! This transmission has been issued by a member of the HSBC Group "HSBC" for the information of the addressee only and should not be reproduced and/or distributed to any other person. Each page attached hereto must be read in conjunction with any disclaimer which forms part of it. Unless otherwise stated, this transmission is neither an offer nor the solicitation of an offer to sell or purchase any investment. Its contents are based on information obtained from sources believed to be reliable but HSBC makes no representation and accepts no responsibility or liability as to its completeness or accuracy.

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rules-users September 2013