[rules-users] Using rule flow in Guvnor
Hi, I am having an issue in implementing the rule flow in guvnor. I created a simple rule flow using eclipse plug in. http://drools-java-rules-engine.46999.n3.nabble.com/file/n1057004/rules.jpg I checked the rule flow model in eclipse using the green tick mark and it showed Drools flow model checked successfully. My .rf and .rfm files were created. But when I imported .rf file in my guvnor and build the package I am getting the following error : Unable to parse xml When i checked the server log, only this was printed : (null: 1, 93): cvc-elt.1: Cannot find the declaration of element 'org.drools.eclipse.flow.ruleflow.core.RuleFlowProcessWrapper'. This is the source of the generated .rfm file 1 1 Start 1 ailmentreserves 2 AilmentReserves 1 benefitreserves 3 BenefitReserves 1 4 End 2 3 4 4 resistrationflow RuleFlowTest 1.0 RuleFlow HealthCareTest Am I missing anything. Should the package name in the eclipse same as the package I use in guvnor ? I have only the rule flow file in Eclipse and remaining are written directly in guvnor. Any hint on this will be of great help. Regards, Dinesh -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Using-rule-flow-in-Guvnor-tp1057004p1057004.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Using rule flow in Guvnor
Sorry, my .rfm file was not pasted properly in the previous post I checked the rule flow model in eclipse using the green tick mark and it showed Drools flow model checked successfully. My .rf and .rfm files were created. But when I imported .rf file in my guvnor and build the package I am getting the following error : Unable to parse xml When i checked the server log, only this was printed : (null: 1, 93): cvc-elt.1: Cannot find the declaration of element 'org.drools.eclipse.flow.ruleflow.core.RuleFlowProcessWrapper'. org.drools.ruleflow.core.impl.RuleFlowProcessImpl id=1 nodes id=2 entry long1/long org.drools.ruleflow.core.impl.StartNodeImpl id=3 id1/id nameStart/name incomingConnections id=4/ outgoingConnections id=5 org.drools.ruleflow.core.impl.ConnectionImpl id=6 type1/type from class=org.drools.ruleflow.core.impl.StartNodeImpl reference=3/ to class=org.drools.ruleflow.core.impl.RuleSetNodeImpl id=7 ruleFlowGroupailmentreserves/ruleFlowGroup id2/id nameAilmentReserves/name incomingConnections id=8 org.drools.ruleflow.core.impl.ConnectionImpl reference=6/ /incomingConnections outgoingConnections id=9 org.drools.ruleflow.core.impl.ConnectionImpl id=10 type1/type from class=org.drools.ruleflow.core.impl.RuleSetNodeImpl reference=7/ to class=org.drools.ruleflow.core.impl.RuleSetNodeImpl id=11 ruleFlowGroupbenefitreserves/ruleFlowGroup id3/id nameBenefitReserves/name incomingConnections id=12 org.drools.ruleflow.core.impl.ConnectionImpl reference=10/ /incomingConnections outgoingConnections id=13 org.drools.ruleflow.core.impl.ConnectionImpl id=14 type1/type from class=org.drools.ruleflow.core.impl.RuleSetNodeImpl reference=11/ to class=org.drools.ruleflow.core.impl.EndNodeImpl id=15 id4/id nameEnd/name incomingConnections id=16 org.drools.ruleflow.core.impl.ConnectionImpl reference=14/ /incomingConnections outgoingConnections id=17/ /to /org.drools.ruleflow.core.impl.ConnectionImpl /outgoingConnections /to /org.drools.ruleflow.core.impl.ConnectionImpl /outgoingConnections /to /org.drools.ruleflow.core.impl.ConnectionImpl /outgoingConnections /org.drools.ruleflow.core.impl.StartNodeImpl /entry entry long2/long org.drools.ruleflow.core.impl.RuleSetNodeImpl reference=7/ /entry entry long3/long org.drools.ruleflow.core.impl.RuleSetNodeImpl reference=11/ /entry entry long4/long org.drools.ruleflow.core.impl.EndNodeImpl reference=15/ /entry /nodes variables id=18/ lastNodeId4/lastNodeId idresistrationflow/id nameRuleFlowTest/name version1.0/version typeRuleFlow/type packageNameHealthCareTest/packageName /org.drools.ruleflow.core.impl.RuleFlowProcessImpl Am I missing anything. Should the package name in the eclipse same as the package I use in guvnor ? I have only the rule flow file in Eclipse and remaining are written directly in guvnor. Any hint on this will be of great help. Regards, Dinesh -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Using-rule-flow-in-Guvnor-tp1057004p1057128.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] Is nested loops possible ?
Hi,
I am having a problem in iterating a list inside a list.
I am having the following business scenario.
Public Class CustomerOrder {
private String customerName;
private ArrayListOrder orderList;
}
Public Class Order {
private String orderId;
private String orderTime;
private ArrayListOrderItem orderList;
}
Public Class OrderItem {
private String itemName;
private Double itemAmount;
}
I need to find the total order amount for each order and the sum of all
order.
My rule is like individual orders should not exceed a 1 and total order
amount of all customers should not exceed 10.
For this, I need to iterate ArrayListOrder orderList and during each
iteration , I need to iterate ArrayListOrderItem orderList. Is this
possible in Drools ?
I tried something like this. But it doesn't seem to be working.
when
ClaimRegistration($orderList: orderList)
Number( $count : intValue 0)
from accumulate(Order(orderId== order1
Number( doubleValue 1 )
from accumulate( OrderItem( $value : itemAmount),
init( double total = 0; ),
action( total += $value; ),
reverse( total -= $value; ),
result( total ) )
) from $orderList,count(1))
then
Sysout(,);
It would be of great help if any one can give suggestions to solve this.
Is nested loops possible in Drools ?
Regards,
Dinesh
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Re: [rules-users] are for loops possible in drools
Hi, I faced a similar problem. This thread helped me to solve the issue. this keyword is working fine for me. U can check whether it is supported in your version. I am using 5.0.1 But even this keyword works for me, I am facing another problem. The then block executed for every success in the block i.e., say there are 10 items in the list and 5 of the matches the regex, then the when block executed 5 times. Is this the only way to iterate a loop..? My business scenario involves nested for loops. Is it possible in drools..? How do I write a nested for loop. Remember that my inner for loop requires values from the outer loops and this inner loops will go up to 3 or 4 levels. Is it possible and even if it is possible, will the coding become so complex so that the business user who is going to use it may not understand ?? Kindly advice. Regards, Dinesh -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/are-for-loops-possible-in-drools-tp1011729p1016053.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] Rules integration with Java -need help
Hi, Thanks for your reply. Things are working. :) Regards, Dinesh -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Rules-integration-with-Java-need-help-tp966070p1008950.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] How to Iterate list in drools
Hi,
I am facing problems in iterating a list in guvnor.
I tried the following code and it worked.
import java.util.ArrayList;
rule createValidationReport
dialect 'java'
when
ClaimRegistration($ailmentList : ailmentListFromScreen)
then
for(String ailment : (ArrayListString) $ailmentList){
System.out.println(ailment +ailment);
}
System.out.println(then);
end
But my requirement is to iterate the list in the when block and process
something based on the data in the list.
It should be something like
import java.util.ArrayList;
rule createValidationReport
dialect 'java'
when
ClaimRegistration($ailmentList : ailmentListFromScreen)
for(String ailment : (ArrayListString) $ailmentList){
System.out.println(ailment +ailment);
// My condition needs to be evaluated here
}
then
System.out.println(then);
end
Need help on this issue. Is this possible in Drools?
kindly advice.
Regards,
Dinesh
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[rules-users] Rules integration with Java -need help
Hi, Need help in integrating guvnor with my java application. I have the set rules to executed for a particular module as individual packages within guvnor. To fire these rules, I have separate properties file specifying the URL of each package and mention it within the application as below. For module1: Properties properties = new Properties(); properties.load(new FileInputStream(module1PropertiesFilePath)); RuleAgent agent = RuleAgent.newRuleAgent(properties); RuleBase ruleBase = agent.getRuleBase(); WorkingMemory workingMemory = ruleBase.newStatefulSession(); workingMemory.insert(module1Object); workingMemory.fireAllRules(); For module2: Properties properties = new Properties(); properties.load(new FileInputStream(module2PropertiesFilePath)); RuleAgent agent = RuleAgent.newRuleAgent(properties); RuleBase ruleBase = agent.getRuleBase(); WorkingMemory workingMemory = ruleBase.newStatefulSession(); workingMemory.insert(module2Object); workingMemory.fireAllRules(); My properties file looks like this. There will be one properties file for each module. ## ## RuleAgent configuration file example ## #setting this means the rulebase will be created fresh whenever there are #changes newInstance=true #this points to a binary compiled rule package, you can have spaces #seperating multiple files #file=/foo/bar/boo.pkg /foo/bar/boo2.pkg #this specifies that packages may appear in a directory #it will pick up whatever files are dumped in there (.pkg files like above) #dir=/my/dir #this specifies a list of urls for packages - these urls #are those that are exposed by the BRMS url= http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/Module1/LATEST #the following can be used with the urls to keep a local cache #so if the runtime server is restarted, the BRMS does not need #to be available #localCacheDir= #this specifies the frequency at which the sources will be checked for #changes (in seconds). If you don't set this, it will mean that you have #to manually poll poll=30 #this specifies the name of this config, necessary in case logging is used. name=MyConfig Instead of specifying the url in the properties file, can i directly have the url in my java.. How to directly specify the url in java instead of using properties file? Any suggestions will be of great help.. Regards, Dinesh -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Rules-integration-with-Java-need-help-tp966070p966070.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] Calling a rule within a rule
Hi, Thanks for your reply. The explanation of rule evaluation flow is really good. Solution 1: I cannot use all the rules in a single rule because actual rules are very complicated and in real scenarios i will actually have many rules within a single rule and on success of that I need to execute another rule. Also, I need to return different messages based on rules. If Rule1 fails i needs return message 1 and rule 2 fails i need to return message 2. But, there is no point in executing Rule 2 when Rule 1 fails. Solution 2: As you said will be easy to implement. But , I believe it might affect the performance and may not be a feasible solution. Anyways, the idea is quite simple and smart. Thanks for the idea. Solution 3 : I need to explore on what is Logical insert as I have very little idea on what it is. I will give a try with this.. Thank again for your help. I was exploring ways to call a rule within a rule. You made it clear.. !!! Dinesh kumar -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Calling-a-rule-within-a-rule-tp863409p864648.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Drools 5.0.1 in eclipse having memory issue
I think this might help you. I was working in GWT project before and I had similar issue. Try the following 1. Windows - Preferences 2. Java - Installed JREs 3. Select the JRE and click on Edit 4. Add the follwing in VM arguments -Xmx1024M Please ensure that you have minimum RAM of 2 GB to use 1024MB for your JVM. The following link will give better idea with screen shots http://dinu.blog.com/2010/06/02/out-of-memory/ http://dinu.blog.com/2010/06/02/out-of-memory/ Regards, Dinesh kumar -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Drools-5-0-1-in-eclipse-having-memory-issue-tp859684p864750.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] Calling a rule within a rule
Hi All, I am new to Drools and I need a help. Is it possible to call a rule within a rule. i.e., only when rule1 condition is true , my rule2 should execute rule1 when a!=null then ... rule2 when a.toString() != then ... Though i can write both the conditions in the same rule, its not a feasible solution as my business rules are much complicated. I am expecting to write something like this.. rule1 when a!=null then when a.toString() != then ... end end But this is not working out. It would be great if someone can help me out.. Also I understood that variables cannot be declared in guvnor.. Is this true..? If true then what is an alternative. Kindly help me Regards, Dinesh -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Calling-a-rule-within-a-rule-tp863409p863409.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] Help needed in configuring drools guvnor with MySql
Hi, I am trying to configure Drools Guvnor with MySql. I am using JBoss 4.0 . I searched the web and changed my repository.xml that was created in my JBoss/bin . But I am getting one exception after another and finally I am struck up in this exception. Any help on this will be of great help.. deploy, ctxPath=/drools-guvnor, warUrl=.../tmp/deploy/tmp48046drools-guvnor-exp.war/ 14:01:01,820 INFO [STDOUT] ERROR 26-05 14:01:01,820 (BundleDbPersistenceManager.java:loadBundle:1228)failed to read bundle: cafebabe-cafe-babe-cafe-babecafebabe: java.lang.IllegalStateException: URIIndex not valid? javax.jcr.NamespaceException: URI for index 11 not registered. 14:01:01,930 INFO [STDOUT] ERROR 26-05 14:01:01,930 (ConnectionRecoveryManager.java:logException:447)could not execute statement, reason: The statement was aborted because it would have caused a duplicate key value in a unique or primary key constraint or unique index identified by 'SQL100526101110450' defined on 'DEFAULT_BUNDLE'., state/code: 23505/2 14:01:01,930 INFO [STDOUT] ERROR 26-05 14:01:01,930 (BundleDbPersistenceManager.java:storeBundle:1270) failed to write bundle: cafebabe-cafe-babe-cafe-babecafebabe ERROR 23505: The statement was aborted because it would have caused a duplicate key value in a unique or primary key constraint or unique index identified by 'SQL100526101110450' defined on 'DEFAULT_BUNDLE'. at org.apache.derby.iapi.error.StandardException.newException(Unknown Source) at org.apache.derby.impl.sql.execute.IndexChanger.insertAndCheckDups(Unknown Source) at org.apache.derby.impl.sql.execute.IndexChanger.doInsert(Unknown Source) at org.apache.derby.impl.sql.execute.IndexChanger.insert(Unknown Source) at org.apache.derby.impl.sql.execute.IndexSetChanger.insert(Unknown Source) at org.apache.derby.impl.sql.execute.RowChangerImpl.insertRow(Unknown Source) at org.apache.derby.impl.sql.execute.InsertResultSet.normalInsertCore(Unknown Source) at org.apache.derby.impl.sql.execute.InsertResultSet.open(Unknown Source) at org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown Source) at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown Source) at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeStatement(Unknown Source) at org.apache.derby.impl.jdbc.EmbedPreparedStatement.execute(Unknown Source) at org.apache.jackrabbit.core.persistence.bundle.util.ConnectionRecoveryManager.executeStmtInternal(ConnectionRecoveryManager.java:365) at org.apache.jackrabbit.core.persistence.bundle.util.ConnectionRecoveryManager.executeStmtInternal(ConnectionRecoveryManager.java:292) at org.apache.jackrabbit.core.persistence.bundle.util.ConnectionRecoveryManager.executeStmt(ConnectionRecoveryManager.java:257) at org.apache.jackrabbit.core.persistence.bundle.util.ConnectionRecoveryManager.executeStmt(ConnectionRecoveryManager.java:237) at org.apache.jackrabbit.core.persistence.bundle.BundleDbPersistenceManager.storeBundle(BundleDbPersistenceManager.java:1267) at org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.putBundle(AbstractBundlePersistenceManager.java:703) at org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.store(AbstractBundlePersistenceManager.java:643) at org.apache.jackrabbit.core.persistence.bundle.BundleDbPersistenceManager.store(BundleDbPersistenceManager.java:526) at org.apache.jackrabbit.core.state.SharedItemStateManager.createRootNodeState(SharedItemStateManager.java:1084) at org.apache.jackrabbit.core.state.SharedItemStateManager.init(SharedItemStateManager.java:194) at org.apache.jackrabbit.core.RepositoryImpl.createItemStateManager(RepositoryImpl.java:1201) at org.apache.jackrabbit.core.RepositoryImpl$WorkspaceInfo.doInitialize(RepositoryImpl.java:1753) at org.apache.jackrabbit.core.RepositoryImpl$WorkspaceInfo.initialize(RepositoryImpl.java:1724) at org.apache.jackrabbit.core.RepositoryImpl.initWorkspace(RepositoryImpl.java:576) at org.apache.jackrabbit.core.RepositoryImpl.initStartupWorkspaces(RepositoryImpl.java:415) at org.apache.jackrabbit.core.RepositoryImpl.init(RepositoryImpl.java:305) at org.apache.jackrabbit.core.RepositoryImpl.create(RepositoryImpl.java:557) at org.apache.jackrabbit.core.TransientRepository$2.getRepository(TransientRepository.java:245) at org.apache.jackrabbit.core.TransientRepository.startRepository(TransientRepository.java:265) at org.apache.jackrabbit.core.TransientRepository.login(TransientRepository.java:333) at org.apache.jackrabbit.core.TransientRepository.login(TransientRepository.java:363) at org.drools.guvnor.server.repository.BRMSRepositoryConfiguration.newSession(BRMSRepositoryConfiguration.java:112) at
Re: [rules-users] Problem using Oracle as data repository for Guvnor 5.0.0.M4
Hi,, I have the same problem. Is there any solution for this.. -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Problem-using-Oracle-as-data-repository-for-Guvnor-5-0-0-M4-tp58866p844751.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
