November 2013 - rules-users - Jboss List Archives

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.

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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, 1 month

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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, 1 month

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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, 1 month

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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, 1 month

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Rule For Counting Planning Variables/Entities

by newbie

I am new user of drools and I'm trying to recreate an application similar to nurse rostering. This time assigning an employee to a department for a specific period of time. My hard constraint was an employee must be assigned to a department at least 3 months. My planning entity is DepartmentAssignment and planning variable Employee. The planning entity class looks like this: @PlanningEntity(difficultyComparatorClass = DepartmentAssignmentDifficultyComparator.class) @XStreamAlias("DepartmentAssignment ") public class DepartmentAssignment extends AbstractPersistable{ private Duration duration; // per month private Department department; //Planning variable : changes during planning, between score calculations. private Employee employee; How can I make such rule? I tried using this but it seems not working. Am i missing something? rule "minimumNumberofMonths" when $employee : Employee() $department : Department() $assignedNumberOfMonths : Number(intValue > 0 && < 3) from accumulate( $assignment: DepartmentAssignment( employee!= null, department== $department, employee== $employee ), count($assignment) ) then insertLogical(new IntConstraintOccurrence("minimumNumberofMonths", ConstraintType.NEGATIVE_HARD, 1, $employee, $department)); end -- View this message in context: http://drools.46999.n3.nabble.com/Rule-For-Counting-Planning-Variables-En... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 1 month

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Session missing rules

by sandeep_nambiar

I have integrated Drools 5.3 in my Web application(running in Jboss 7.1). We were creating rules before starting the application. Now we are trying to create rules dynamically. Have added the folder path where I am creating rules dynamically in change-set.xml . After creating rules during runtime I am doing all required things mentioned in the documents. There itself after adding the new rule if i do a check in the available KnowledgePackages , I can see the new rule present in Package... But once I restart the Jboss ,and I see in the session some rules which I have created before are missing..its not always the same rule..it varies on each restart. We are using StatefulSessions and I have made the "drools.agent.newInstance" as false.. Please provide a solution for the same... -- View this message in context: http://drools.46999.n3.nabble.com/Session-missing-rules-tp4026709.html Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 1 month

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Govner - drools:resource-change-scanner

by san_hegde

Hi All, Our application is developed using Spring framework. We have our Rules in Guvnor. In our application we use resource scanner to poll Guvnor to check and download the latest package if modified like below. <drools:resource-change-scanner id="s1" interval="3600" /> The issue is in case if Guvnor goes down and during that time if scanner checks Guvnor and finds Guvnor is down, THEN 1) In the application the local copy of the Rules package which Spring bean have is lost. Hence Rules will not be fired. 2) Even if we restart the Guvnor, the scanner not scanning the resource. I have one package in Guvnor. Before the Guvnor went down the log message from scanner was "ResourceChangeScanner attempt to scan 1 resources" After the Guvnor went down the log message is "ResourceChangeScanner attempt to scan 0 resources" That means it is not even scanning the Guvnor resource as the log message says its 0 resource scanning. Any idea on how to handle this kind of scenario where even if Guvnor goes down Spring should still should continue using its spring local copy which it downloaded while starting the application. My complete spring bean configuration is as below. <bean id="EnvConfiguration" class="com.hp.rebates.grs.model.rules.conf.EnvConfiguration"> </bean> <drools:resource id="resource" source="#{EnvConfiguration.ruleEngineURL}" type="CHANGE_SET" /> <drools:resource-change-scanner id="s1" interval="3600" /> <drools:kagent kbase="knowledgeBase" id="kagent" new-instance="false"> <drools:resources> <drools:resource ref="resource" /> </drools:resources> </drools:kagent> <drools:kbase id="knowledgeBase"> <drools:resources> <drools:resource ref="resource" /> </drools:resources> </drools:kbase> <drools:ksession id="knowledgeSession" type="stateless" kbase="knowledgeBase" /> <bean id="StartChangeScanner" class="com.hp.rebates.grs.model.rules.conf.StartChangeScanner"> </bean> -- View this message in context: http://drools.46999.n3.nabble.com/Govner-drools-resource-change-scanner-t... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 1 month

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how can I modify a batch of objects

by Elran Dvir

Hi all, I am trying to identify a port scan event. The basic fact is connection log. For each combination of src (source IP) and dst (destination IP) , detect a port scan event, if over 60 seconds there were at least 20 connection logs with different service and protocol. The event will stay closed for 10 minute - no event will be sent during this time for this combination of src and dst. The event will contain the connection logs' ids (markers). I tried to implement it using "accumulate" and "over window:time" but it consumes too much memory. So I am trying to imitate this functionality using several rules and facts. My drl contains the following lines (among others): declare CorrelatedEvent @role( event) @expires( 600s ) end declare CandidatesWindow @role( event) @expires( 60s ) end rule "Create Port Scan Event - 1" enabled true dialect "java" no-loop when $log : Log() not CorrelatedEvent(getId() == "portScan" , groupByFieldsMap.get("src") == $log.fieldsMap.get("src") ,groupByFieldsMap.get("dst") == $log.fieldsMap.get("dst")) $windows : ArrayList() from collect( CandidatesWindow(getRuleId() == "portScan" , groupByFieldsMap.get("src") == $log.fieldsMap.get("src") , groupByFieldsMap.get("dst") == $log.fieldsMap.get("dst"))) then String id = $log.fieldsMap.get("port").toString(); System.out.println(new Date().toString()+" windowSize: " + $windows.size()); for (Object windowObj : $windows) { CandidatesWindow window = (CandidatesWindow) windowObj; modify ( window ) { addLog($log, id) } } CandidatesWindow newWindow = new CandidatesWindow("portScan", true); newWindow.groupByFieldsMap.put("src", $log.fieldsMap.get("src")); newWindow.groupByFieldsMap.put("dst", $log.fieldsMap.get("dst")); newWindow.addLog($log, id); insert(newWindow); end This imitates sliding time windows. when I tested it, I got the following exception: Exception executing consequence for rule "Create Port Scan Event - 1" in com.checkpoint.correlation.impl.drools.package1: java.util.ConcurrentModificationException at org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39) at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1297) at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1221) at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1456) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:710) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:674) at org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:230) at com.checkpoint.correlation.impl.drools.DroolsCEPEngineV1.insertEvents(DroolsCEPEngineV1.java:173) at com.checkpoint.correlation.impl.feeder.JsonFileFeeder.init(JsonFileFeeder.java:68) at com.checkpoint.correlation.server.CorrelationServer.initFeeder(CorrelationServer.java:63) at com.checkpoint.correlation.server.CorrelationServer.run(CorrelationServer.java:28) at com.checkpoint.correlation.server.CorrelationServer.runServer(CorrelationServer.java:101) at com.checkpoint.correlation.server.CorrelationServer.main(CorrelationServer.java:85) Caused by: java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:819) at java.util.ArrayList$Itr.next(ArrayList.java:791) at com.checkpoint.correlation.impl.drools.package1.Rule_Create_Port_Scan_Event___1_2f94bc67f9064c6e9614982cf9bc8859.defaultConsequence(Rule_Create_Port_Scan_Event___1_2f94bc67f9064c6e9614982cf9bc8859.java:11) at com.checkpoint.correlation.impl.drools.package1.Rule_Create_Port_Scan_Event___1_2f94bc67f9064c6e9614982cf9bc8859DefaultConsequenceInvokerGenerated.evaluate(Unknown Source) at com.checkpoint.correlation.impl.drools.package1.Rule_Create_Port_Scan_Event___1_2f94bc67f9064c6e9614982cf9bc8859DefaultConsequenceInvoker.evaluate(Unknown Source) at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1287) ... 11 more It is caused by modify ( window ) in the for loop. How can I make it work? Thanks.

12 years, 1 month

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Drools get value from stateful session

by forsakendoll

How can I get the value from a stateful session. As they say I can use this: protected Collection findFacts( final StatefulKnowledgeSession session, final String factClass ) { ObjectFilter filter = new ObjectFilter() { @Override public boolean accept( Object object ) { return object.getClass().getSimpleName().equals( factClass ); } }; Collection results = session.getObjects( filter ); return results; } to get the value from the rules. Given the fact the code already red the rules when I tried this: StatefulKnowledgeSession ksession = aKnowledgeBase.newStatefulKnowledgeSession(); ksession.insert( aBean ); ksession.fireAllRules(); Collection result = findFacts( ksession, "com.neu.als.thesis.db.beans.StudentBean" ); ksession.dispose(); for( Object test : result ) { System.out.println( test == null ); System.out.println( test ); } Nothing is printed. What is the proper way to get bean that I inserted in the rules? -- View this message in context: http://drools.46999.n3.nabble.com/Drools-get-value-from-stateful-session-... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 1 month

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rules-users November 2013