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drools | rule engine, DMN engine | Code Analyzer library

 by   kiegroup Java Version: Current License: No License

 by   kiegroup Java Version: Current License: No License

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kandi X-RAY | drools Summary

drools is a Java library typically used in Code Quality, Code Analyzer applications. drools has no bugs, it has build file available and it has high support. However drools has 1 vulnerabilities. You can download it from GitHub, Maven.
It will save you and us a lot of time by setting up your development environment correctly. It solves all known pitfalls that can disrupt your development. It also describes all guidelines, tips and tricks. If you want your pull requests (or patches) to be merged, please respect those guidelines.
Support
Support
Quality
Quality
Security
Security
License
License
Reuse
Reuse

kandi-support Support

  • drools has a highly active ecosystem.
  • It has 4343 star(s) with 2232 fork(s). There are 291 watchers for this library.
  • It had no major release in the last 12 months.
  • drools has no issues reported. There are 23 open pull requests and 0 closed requests.
  • It has a positive sentiment in the developer community.
  • The latest version of drools is current.
drools Support
Best in #Code Analyzer
Average in #Code Analyzer
drools Support
Best in #Code Analyzer
Average in #Code Analyzer

quality kandi Quality

  • drools has no bugs reported.
drools Quality
Best in #Code Analyzer
Average in #Code Analyzer
drools Quality
Best in #Code Analyzer
Average in #Code Analyzer

securitySecurity

  • drools has 1 vulnerability issues reported (0 critical, 1 high, 0 medium, 0 low).
drools Security
Best in #Code Analyzer
Average in #Code Analyzer
drools Security
Best in #Code Analyzer
Average in #Code Analyzer

license License

  • drools does not have a standard license declared.
  • Check the repository for any license declaration and review the terms closely.
  • Without a license, all rights are reserved, and you cannot use the library in your applications.
drools License
Best in #Code Analyzer
Average in #Code Analyzer
drools License
Best in #Code Analyzer
Average in #Code Analyzer

buildReuse

  • drools releases are not available. You will need to build from source code and install.
  • Deployable package is available in Maven.
  • Build file is available. You can build the component from source.
drools Reuse
Best in #Code Analyzer
Average in #Code Analyzer
drools Reuse
Best in #Code Analyzer
Average in #Code Analyzer
Top functions reviewed by kandi - BETA

kandi has reviewed drools and discovered the below as its top functions. This is intended to give you an instant insight into drools implemented functionality, and help decide if they suit your requirements.

  • matchTimeInterval
  • assumes primary key
  • identifier suffix
  • Compute the time after the given date .
  • Match a variable definition
  • Build the trait map field .
  • Convert an expression to a typed expression
  • From an accumulator .
  • Creates a new XStream .
  • parses a floating pointLiteral

drools Key Features

Drools is a rule engine, DMN engine and complex event processing (CEP) engine for Java.

How to deal with publishing promotion issues Hybris 2105?

copy iconCopydownload iconDownload
  import de.hybris.platform.commerceservices.search.pagedata.PageableData
  import de.hybris.platform.servicelayer.search.FlexibleSearchQuery
  import com.google.common.collect.ImmutableMap;
  import de.hybris.platform.servicelayer.interceptor.impl.InterceptorExecutionPolicy;
  import de.hybris.platform.servicelayer.session.SessionExecutionBody;
  import de.hybris.platform.servicelayer.session.SessionService;
  import com.google.common.collect.ImmutableSet;


  int start = 0
  int pageSize = 1000
  int total = pageSize

  final FlexibleSearchQuery searchQuery = new FlexibleSearchQuery("select {PK} from {DroolsRule} ORDER BY {PK}")

  searchQuery.setCount(pageSize)
  searchQuery.setNeedTotal(true)

  while (start < total) {
      searchQuery.setStart(start)
      def searchResult = flexibleSearchService.search(searchQuery)

      searchResult.getResult().each {
          final Map<String, Object> params = ImmutableMap.of(InterceptorExecutionPolicy.DISABLED_INTERCEPTOR_TYPES,
              ImmutableSet.of(InterceptorExecutionPolicy.InterceptorType.PREPARE,InterceptorExecutionPolicy.InterceptorType.VALIDATE));

          sessionService.executeInLocalViewWithParams(params, new SessionExecutionBody() {
              @Override
              public void executeWithoutResult() {
                  it.setRuleContent("");
                  modelService.save(it);
              }
          });
      }

      total = searchResult.getTotalCount()
      start += pageSize
  }

  println "Script has been completed."

What does a drools fact check (when) return when one uses the &quot;in&quot; operator

copy iconCopydownload iconDownload
class Vgdoc {
  public String getCode() { ... }
  public String getColour() { ... }
}
rule "One"
when
  vg1: Vgdoc( code in ("IA1003", "IA1004"),
              colour == "red" )
then
  Systen.out.println("Rule 1 fired");
end
Vgdoc{ code: "IA1003", colour: "red" } // A
Vgdoc{ code: "IA1004", colour: "red" } // B
Vgdoc{ code: "IA1005", colour: "red" } // C
Vgdoc{ code: "IA1003", colour: "blue" } // D
rule "IA1003 and IA1004 with red"
when
  vgList: List() from collect( Vgdoc( code in ("IA1003", "IA1004"), colour == "red" ))
then
  System.out.println("Rule fired, match count: " + vgList.size());
  // vgList will contain all items that match the conditions for code and colour
end
-----------------------
class Vgdoc {
  public String getCode() { ... }
  public String getColour() { ... }
}
rule "One"
when
  vg1: Vgdoc( code in ("IA1003", "IA1004"),
              colour == "red" )
then
  Systen.out.println("Rule 1 fired");
end
Vgdoc{ code: "IA1003", colour: "red" } // A
Vgdoc{ code: "IA1004", colour: "red" } // B
Vgdoc{ code: "IA1005", colour: "red" } // C
Vgdoc{ code: "IA1003", colour: "blue" } // D
rule "IA1003 and IA1004 with red"
when
  vgList: List() from collect( Vgdoc( code in ("IA1003", "IA1004"), colour == "red" ))
then
  System.out.println("Rule fired, match count: " + vgList.size());
  // vgList will contain all items that match the conditions for code and colour
end
-----------------------
class Vgdoc {
  public String getCode() { ... }
  public String getColour() { ... }
}
rule "One"
when
  vg1: Vgdoc( code in ("IA1003", "IA1004"),
              colour == "red" )
then
  Systen.out.println("Rule 1 fired");
end
Vgdoc{ code: "IA1003", colour: "red" } // A
Vgdoc{ code: "IA1004", colour: "red" } // B
Vgdoc{ code: "IA1005", colour: "red" } // C
Vgdoc{ code: "IA1003", colour: "blue" } // D
rule "IA1003 and IA1004 with red"
when
  vgList: List() from collect( Vgdoc( code in ("IA1003", "IA1004"), colour == "red" ))
then
  System.out.println("Rule fired, match count: " + vgList.size());
  // vgList will contain all items that match the conditions for code and colour
end
-----------------------
class Vgdoc {
  public String getCode() { ... }
  public String getColour() { ... }
}
rule "One"
when
  vg1: Vgdoc( code in ("IA1003", "IA1004"),
              colour == "red" )
then
  Systen.out.println("Rule 1 fired");
end
Vgdoc{ code: "IA1003", colour: "red" } // A
Vgdoc{ code: "IA1004", colour: "red" } // B
Vgdoc{ code: "IA1005", colour: "red" } // C
Vgdoc{ code: "IA1003", colour: "blue" } // D
rule "IA1003 and IA1004 with red"
when
  vgList: List() from collect( Vgdoc( code in ("IA1003", "IA1004"), colour == "red" ))
then
  System.out.println("Rule fired, match count: " + vgList.size());
  // vgList will contain all items that match the conditions for code and colour
end

Drools Stream mode negative patterns

copy iconCopydownload iconDownload
declare MetaMessage
        @role(event)
end
 
rule 'rule1'
    when  
        $inMess : MetaMessage() 
        not(MetaMessage(this != $inMess, this after [0s,10s] $inMess) )
    then  
        //do things
end
kieSession.insert(metaMessage);
kieSession.fireAllRules();
-----------------------
declare MetaMessage
        @role(event)
end
 
rule 'rule1'
    when  
        $inMess : MetaMessage() 
        not(MetaMessage(this != $inMess, this after [0s,10s] $inMess) )
    then  
        //do things
end
kieSession.insert(metaMessage);
kieSession.fireAllRules();

Generic classes within Drools-WorkBench

copy iconCopydownload iconDownload
@DroolsSession(resources = "draft/inputObjectExample.xlsx",
        builderProperties = "drools.dump.dir = target/dump",
        showStateTransitionPopup = true)
public class PlaygroundTest extends DroolsAssert {
    
    @RegisterExtension
    public DroolsAssert droolsAssert = this;
    
    @Test
    @TestRules(expectedCount = { "1", "Check_DyrAlder" })
    public void testInputObjectExample() {
        KieCommands commandFactory = KieServices.get().getCommands();
        List<Command<?>> commands = new ArrayList<>();
        
        for (int i = 0; i < 10; i++) {
            InputObject inputObject = new InputObject();
            inputObject.setTransactionId(i);
            inputObject.setRuleSet("set" + i);
            inputObject.setInput(ImmutableMap.of("DyrAlder", i));
            inputObject.setValidationResults(new ArrayList<>());
            
            commands.add(commandFactory.newInsert(inputObject, "ValRes"));
            commands.add(commandFactory.newFireAllRules());
        }
        
        commands.forEach(c -> getSession().execute(c));
    }
}
package draft;
//generated from Decision Table
import draft.InputObject;
import draft.ValidationResult;
// rule values at A9, header at A4
rule "Check_DyrAlder"
    when
        animal:InputObject(ruleSet == "set3", input["DyrAlder"] < 5)
    then
        animal.addValidationResult(new ValidationResult("HDY-08277", "message"));
end
public class InputObject {
    private Integer primaryKey;
    private Integer sessionId;
    private Integer transactionId;
    private String ruleSet;
    private Map<String, Object> input;
    private List<ValidationResult> validationResults;
    // getters/setters
@DroolsSession(resources = "draft/droolsObjectExample.xlsx",
        builderProperties = "drools.dump.dir = target/dump",
        showStateTransitionPopup = true)
public class PlaygroundTest extends DroolsAssert {
    
    @RegisterExtension
    public DroolsAssert droolsAssert = this;
    
    @Test
    @TestRules(expectedCount = { "1", "Check_DyrAlder" })
    public void testDroolsObjectExample() {
        KieCommands commandFactory = KieServices.get().getCommands();
        List<Command<?>> commands = new ArrayList<>();
        
        for (int i = 0; i < 10; i++) {
            DroolsObject inputObject = new DroolsObject();
            inputObject.put("ruleSet", "set" + i);
            inputObject.put("DyrAlder", i);
            
            commands.add(commandFactory.newInsert(inputObject, "ValRes"));
            commands.add(commandFactory.newFireAllRules());
        }
        
        commands.forEach(c -> getSession().execute(c));
    }
}
package draft;
//generated from Decision Table
import draft.DroolsObject;
import draft.ValidationResult;
// rule values at A9, header at A4
rule "Check_DyrAlder"
    when
        animal:DroolsObject(ruleSet == "set3", DyrAlder < 5)
    then
        animal.addValidationResult(new ValidationResult("HDY-08277", "message"));
end
public class DroolsObject extends LinkedHashMap<String, Object> {
    public void addValidationResult(ValidationResult validationResult) {
        if (!this.containsKey("validationResult"))
            this.put("validationResult", new LinkedList<ValidationResult>());
        ((List<ValidationResult>) this.get("validationResult")).add(validationResult);
    }
}
-----------------------
@DroolsSession(resources = "draft/inputObjectExample.xlsx",
        builderProperties = "drools.dump.dir = target/dump",
        showStateTransitionPopup = true)
public class PlaygroundTest extends DroolsAssert {
    
    @RegisterExtension
    public DroolsAssert droolsAssert = this;
    
    @Test
    @TestRules(expectedCount = { "1", "Check_DyrAlder" })
    public void testInputObjectExample() {
        KieCommands commandFactory = KieServices.get().getCommands();
        List<Command<?>> commands = new ArrayList<>();
        
        for (int i = 0; i < 10; i++) {
            InputObject inputObject = new InputObject();
            inputObject.setTransactionId(i);
            inputObject.setRuleSet("set" + i);
            inputObject.setInput(ImmutableMap.of("DyrAlder", i));
            inputObject.setValidationResults(new ArrayList<>());
            
            commands.add(commandFactory.newInsert(inputObject, "ValRes"));
            commands.add(commandFactory.newFireAllRules());
        }
        
        commands.forEach(c -> getSession().execute(c));
    }
}
package draft;
//generated from Decision Table
import draft.InputObject;
import draft.ValidationResult;
// rule values at A9, header at A4
rule "Check_DyrAlder"
    when
        animal:InputObject(ruleSet == "set3", input["DyrAlder"] < 5)
    then
        animal.addValidationResult(new ValidationResult("HDY-08277", "message"));
end
public class InputObject {
    private Integer primaryKey;
    private Integer sessionId;
    private Integer transactionId;
    private String ruleSet;
    private Map<String, Object> input;
    private List<ValidationResult> validationResults;
    // getters/setters
@DroolsSession(resources = "draft/droolsObjectExample.xlsx",
        builderProperties = "drools.dump.dir = target/dump",
        showStateTransitionPopup = true)
public class PlaygroundTest extends DroolsAssert {
    
    @RegisterExtension
    public DroolsAssert droolsAssert = this;
    
    @Test
    @TestRules(expectedCount = { "1", "Check_DyrAlder" })
    public void testDroolsObjectExample() {
        KieCommands commandFactory = KieServices.get().getCommands();
        List<Command<?>> commands = new ArrayList<>();
        
        for (int i = 0; i < 10; i++) {
            DroolsObject inputObject = new DroolsObject();
            inputObject.put("ruleSet", "set" + i);
            inputObject.put("DyrAlder", i);
            
            commands.add(commandFactory.newInsert(inputObject, "ValRes"));
            commands.add(commandFactory.newFireAllRules());
        }
        
        commands.forEach(c -> getSession().execute(c));
    }
}
package draft;
//generated from Decision Table
import draft.DroolsObject;
import draft.ValidationResult;
// rule values at A9, header at A4
rule "Check_DyrAlder"
    when
        animal:DroolsObject(ruleSet == "set3", DyrAlder < 5)
    then
        animal.addValidationResult(new ValidationResult("HDY-08277", "message"));
end
public class DroolsObject extends LinkedHashMap<String, Object> {
    public void addValidationResult(ValidationResult validationResult) {
        if (!this.containsKey("validationResult"))
            this.put("validationResult", new LinkedList<ValidationResult>());
        ((List<ValidationResult>) this.get("validationResult")).add(validationResult);
    }
}
-----------------------
@DroolsSession(resources = "draft/inputObjectExample.xlsx",
        builderProperties = "drools.dump.dir = target/dump",
        showStateTransitionPopup = true)
public class PlaygroundTest extends DroolsAssert {
    
    @RegisterExtension
    public DroolsAssert droolsAssert = this;
    
    @Test
    @TestRules(expectedCount = { "1", "Check_DyrAlder" })
    public void testInputObjectExample() {
        KieCommands commandFactory = KieServices.get().getCommands();
        List<Command<?>> commands = new ArrayList<>();
        
        for (int i = 0; i < 10; i++) {
            InputObject inputObject = new InputObject();
            inputObject.setTransactionId(i);
            inputObject.setRuleSet("set" + i);
            inputObject.setInput(ImmutableMap.of("DyrAlder", i));
            inputObject.setValidationResults(new ArrayList<>());
            
            commands.add(commandFactory.newInsert(inputObject, "ValRes"));
            commands.add(commandFactory.newFireAllRules());
        }
        
        commands.forEach(c -> getSession().execute(c));
    }
}
package draft;
//generated from Decision Table
import draft.InputObject;
import draft.ValidationResult;
// rule values at A9, header at A4
rule "Check_DyrAlder"
    when
        animal:InputObject(ruleSet == "set3", input["DyrAlder"] < 5)
    then
        animal.addValidationResult(new ValidationResult("HDY-08277", "message"));
end
public class InputObject {
    private Integer primaryKey;
    private Integer sessionId;
    private Integer transactionId;
    private String ruleSet;
    private Map<String, Object> input;
    private List<ValidationResult> validationResults;
    // getters/setters
@DroolsSession(resources = "draft/droolsObjectExample.xlsx",
        builderProperties = "drools.dump.dir = target/dump",
        showStateTransitionPopup = true)
public class PlaygroundTest extends DroolsAssert {
    
    @RegisterExtension
    public DroolsAssert droolsAssert = this;
    
    @Test
    @TestRules(expectedCount = { "1", "Check_DyrAlder" })
    public void testDroolsObjectExample() {
        KieCommands commandFactory = KieServices.get().getCommands();
        List<Command<?>> commands = new ArrayList<>();
        
        for (int i = 0; i < 10; i++) {
            DroolsObject inputObject = new DroolsObject();
            inputObject.put("ruleSet", "set" + i);
            inputObject.put("DyrAlder", i);
            
            commands.add(commandFactory.newInsert(inputObject, "ValRes"));
            commands.add(commandFactory.newFireAllRules());
        }
        
        commands.forEach(c -> getSession().execute(c));
    }
}
package draft;
//generated from Decision Table
import draft.DroolsObject;
import draft.ValidationResult;
// rule values at A9, header at A4
rule "Check_DyrAlder"
    when
        animal:DroolsObject(ruleSet == "set3", DyrAlder < 5)
    then
        animal.addValidationResult(new ValidationResult("HDY-08277", "message"));
end
public class DroolsObject extends LinkedHashMap<String, Object> {
    public void addValidationResult(ValidationResult validationResult) {
        if (!this.containsKey("validationResult"))
            this.put("validationResult", new LinkedList<ValidationResult>());
        ((List<ValidationResult>) this.get("validationResult")).add(validationResult);
    }
}
-----------------------
@DroolsSession(resources = "draft/inputObjectExample.xlsx",
        builderProperties = "drools.dump.dir = target/dump",
        showStateTransitionPopup = true)
public class PlaygroundTest extends DroolsAssert {
    
    @RegisterExtension
    public DroolsAssert droolsAssert = this;
    
    @Test
    @TestRules(expectedCount = { "1", "Check_DyrAlder" })
    public void testInputObjectExample() {
        KieCommands commandFactory = KieServices.get().getCommands();
        List<Command<?>> commands = new ArrayList<>();
        
        for (int i = 0; i < 10; i++) {
            InputObject inputObject = new InputObject();
            inputObject.setTransactionId(i);
            inputObject.setRuleSet("set" + i);
            inputObject.setInput(ImmutableMap.of("DyrAlder", i));
            inputObject.setValidationResults(new ArrayList<>());
            
            commands.add(commandFactory.newInsert(inputObject, "ValRes"));
            commands.add(commandFactory.newFireAllRules());
        }
        
        commands.forEach(c -> getSession().execute(c));
    }
}
package draft;
//generated from Decision Table
import draft.InputObject;
import draft.ValidationResult;
// rule values at A9, header at A4
rule "Check_DyrAlder"
    when
        animal:InputObject(ruleSet == "set3", input["DyrAlder"] < 5)
    then
        animal.addValidationResult(new ValidationResult("HDY-08277", "message"));
end
public class InputObject {
    private Integer primaryKey;
    private Integer sessionId;
    private Integer transactionId;
    private String ruleSet;
    private Map<String, Object> input;
    private List<ValidationResult> validationResults;
    // getters/setters
@DroolsSession(resources = "draft/droolsObjectExample.xlsx",
        builderProperties = "drools.dump.dir = target/dump",
        showStateTransitionPopup = true)
public class PlaygroundTest extends DroolsAssert {
    
    @RegisterExtension
    public DroolsAssert droolsAssert = this;
    
    @Test
    @TestRules(expectedCount = { "1", "Check_DyrAlder" })
    public void testDroolsObjectExample() {
        KieCommands commandFactory = KieServices.get().getCommands();
        List<Command<?>> commands = new ArrayList<>();
        
        for (int i = 0; i < 10; i++) {
            DroolsObject inputObject = new DroolsObject();
            inputObject.put("ruleSet", "set" + i);
            inputObject.put("DyrAlder", i);
            
            commands.add(commandFactory.newInsert(inputObject, "ValRes"));
            commands.add(commandFactory.newFireAllRules());
        }
        
        commands.forEach(c -> getSession().execute(c));
    }
}
package draft;
//generated from Decision Table
import draft.DroolsObject;
import draft.ValidationResult;
// rule values at A9, header at A4
rule "Check_DyrAlder"
    when
        animal:DroolsObject(ruleSet == "set3", DyrAlder < 5)
    then
        animal.addValidationResult(new ValidationResult("HDY-08277", "message"));
end
public class DroolsObject extends LinkedHashMap<String, Object> {
    public void addValidationResult(ValidationResult validationResult) {
        if (!this.containsKey("validationResult"))
            this.put("validationResult", new LinkedList<ValidationResult>());
        ((List<ValidationResult>) this.get("validationResult")).add(validationResult);
    }
}
-----------------------
@DroolsSession(resources = "draft/inputObjectExample.xlsx",
        builderProperties = "drools.dump.dir = target/dump",
        showStateTransitionPopup = true)
public class PlaygroundTest extends DroolsAssert {
    
    @RegisterExtension
    public DroolsAssert droolsAssert = this;
    
    @Test
    @TestRules(expectedCount = { "1", "Check_DyrAlder" })
    public void testInputObjectExample() {
        KieCommands commandFactory = KieServices.get().getCommands();
        List<Command<?>> commands = new ArrayList<>();
        
        for (int i = 0; i < 10; i++) {
            InputObject inputObject = new InputObject();
            inputObject.setTransactionId(i);
            inputObject.setRuleSet("set" + i);
            inputObject.setInput(ImmutableMap.of("DyrAlder", i));
            inputObject.setValidationResults(new ArrayList<>());
            
            commands.add(commandFactory.newInsert(inputObject, "ValRes"));
            commands.add(commandFactory.newFireAllRules());
        }
        
        commands.forEach(c -> getSession().execute(c));
    }
}
package draft;
//generated from Decision Table
import draft.InputObject;
import draft.ValidationResult;
// rule values at A9, header at A4
rule "Check_DyrAlder"
    when
        animal:InputObject(ruleSet == "set3", input["DyrAlder"] < 5)
    then
        animal.addValidationResult(new ValidationResult("HDY-08277", "message"));
end
public class InputObject {
    private Integer primaryKey;
    private Integer sessionId;
    private Integer transactionId;
    private String ruleSet;
    private Map<String, Object> input;
    private List<ValidationResult> validationResults;
    // getters/setters
@DroolsSession(resources = "draft/droolsObjectExample.xlsx",
        builderProperties = "drools.dump.dir = target/dump",
        showStateTransitionPopup = true)
public class PlaygroundTest extends DroolsAssert {
    
    @RegisterExtension
    public DroolsAssert droolsAssert = this;
    
    @Test
    @TestRules(expectedCount = { "1", "Check_DyrAlder" })
    public void testDroolsObjectExample() {
        KieCommands commandFactory = KieServices.get().getCommands();
        List<Command<?>> commands = new ArrayList<>();
        
        for (int i = 0; i < 10; i++) {
            DroolsObject inputObject = new DroolsObject();
            inputObject.put("ruleSet", "set" + i);
            inputObject.put("DyrAlder", i);
            
            commands.add(commandFactory.newInsert(inputObject, "ValRes"));
            commands.add(commandFactory.newFireAllRules());
        }
        
        commands.forEach(c -> getSession().execute(c));
    }
}
package draft;
//generated from Decision Table
import draft.DroolsObject;
import draft.ValidationResult;
// rule values at A9, header at A4
rule "Check_DyrAlder"
    when
        animal:DroolsObject(ruleSet == "set3", DyrAlder < 5)
    then
        animal.addValidationResult(new ValidationResult("HDY-08277", "message"));
end
public class DroolsObject extends LinkedHashMap<String, Object> {
    public void addValidationResult(ValidationResult validationResult) {
        if (!this.containsKey("validationResult"))
            this.put("validationResult", new LinkedList<ValidationResult>());
        ((List<ValidationResult>) this.get("validationResult")).add(validationResult);
    }
}
-----------------------
@DroolsSession(resources = "draft/inputObjectExample.xlsx",
        builderProperties = "drools.dump.dir = target/dump",
        showStateTransitionPopup = true)
public class PlaygroundTest extends DroolsAssert {
    
    @RegisterExtension
    public DroolsAssert droolsAssert = this;
    
    @Test
    @TestRules(expectedCount = { "1", "Check_DyrAlder" })
    public void testInputObjectExample() {
        KieCommands commandFactory = KieServices.get().getCommands();
        List<Command<?>> commands = new ArrayList<>();
        
        for (int i = 0; i < 10; i++) {
            InputObject inputObject = new InputObject();
            inputObject.setTransactionId(i);
            inputObject.setRuleSet("set" + i);
            inputObject.setInput(ImmutableMap.of("DyrAlder", i));
            inputObject.setValidationResults(new ArrayList<>());
            
            commands.add(commandFactory.newInsert(inputObject, "ValRes"));
            commands.add(commandFactory.newFireAllRules());
        }
        
        commands.forEach(c -> getSession().execute(c));
    }
}
package draft;
//generated from Decision Table
import draft.InputObject;
import draft.ValidationResult;
// rule values at A9, header at A4
rule "Check_DyrAlder"
    when
        animal:InputObject(ruleSet == "set3", input["DyrAlder"] < 5)
    then
        animal.addValidationResult(new ValidationResult("HDY-08277", "message"));
end
public class InputObject {
    private Integer primaryKey;
    private Integer sessionId;
    private Integer transactionId;
    private String ruleSet;
    private Map<String, Object> input;
    private List<ValidationResult> validationResults;
    // getters/setters
@DroolsSession(resources = "draft/droolsObjectExample.xlsx",
        builderProperties = "drools.dump.dir = target/dump",
        showStateTransitionPopup = true)
public class PlaygroundTest extends DroolsAssert {
    
    @RegisterExtension
    public DroolsAssert droolsAssert = this;
    
    @Test
    @TestRules(expectedCount = { "1", "Check_DyrAlder" })
    public void testDroolsObjectExample() {
        KieCommands commandFactory = KieServices.get().getCommands();
        List<Command<?>> commands = new ArrayList<>();
        
        for (int i = 0; i < 10; i++) {
            DroolsObject inputObject = new DroolsObject();
            inputObject.put("ruleSet", "set" + i);
            inputObject.put("DyrAlder", i);
            
            commands.add(commandFactory.newInsert(inputObject, "ValRes"));
            commands.add(commandFactory.newFireAllRules());
        }
        
        commands.forEach(c -> getSession().execute(c));
    }
}
package draft;
//generated from Decision Table
import draft.DroolsObject;
import draft.ValidationResult;
// rule values at A9, header at A4
rule "Check_DyrAlder"
    when
        animal:DroolsObject(ruleSet == "set3", DyrAlder < 5)
    then
        animal.addValidationResult(new ValidationResult("HDY-08277", "message"));
end
public class DroolsObject extends LinkedHashMap<String, Object> {
    public void addValidationResult(ValidationResult validationResult) {
        if (!this.containsKey("validationResult"))
            this.put("validationResult", new LinkedList<ValidationResult>());
        ((List<ValidationResult>) this.get("validationResult")).add(validationResult);
    }
}

drools getting error : handle not found for object is it in working memory

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then
  $ins.setCategory("A");
  update( $pcr );
end
then
  $ins.setCategory("A");
  modify( $pcr ){ 
    setInsuranceTypes($insuranceTypes)
  }     
end
$ins: InsuranceType( name == "TPD" , category == "D" ) from $insuranceTypes
-----------------------
then
  $ins.setCategory("A");
  update( $pcr );
end
then
  $ins.setCategory("A");
  modify( $pcr ){ 
    setInsuranceTypes($insuranceTypes)
  }     
end
$ins: InsuranceType( name == "TPD" , category == "D" ) from $insuranceTypes
-----------------------
then
  $ins.setCategory("A");
  update( $pcr );
end
then
  $ins.setCategory("A");
  modify( $pcr ){ 
    setInsuranceTypes($insuranceTypes)
  }     
end
$ins: InsuranceType( name == "TPD" , category == "D" ) from $insuranceTypes

Drools - how do I compare a string value present in a Java Object which is present inside a List

copy iconCopydownload iconDownload
rule "Example"
when
  Premium( $insuranceTypes: insuranceTypes )
  exists( InsuranceType( name == "TPD" ) from $insuranceTypes )
then
  System.out.println("Error");
end

How to loop through a list to check if an item is a memberOf another list

copy iconCopydownload iconDownload
rule "Problems related to social environment"
    when
        $eligibilityDomainObject:EligibilityDomainObject($listOfString : listOfString)
            value: String(value memberOf "F77 EOO F99" ) from $listOfString
    then
        $eligibilityDomainObject.setIsComplexPhysicalHealth(true);
end
-----------------------
rule "Problems related to social environment"
    when
        $eligibilityDomainObject:EligibilityDomainObject($listOfString : listOfString)
            value: String(value in ("F77", "EOO", "F99") ) from $listOfString
    then
        $eligibilityDomainObject.setIsComplexPhysicalHealth(true);
end
import static org.apache.commons.collections4.CollectionUtils.containsAny;

rule "Problems related to social environment"
    when
        $eligibilityDomainObject:EligibilityDomainObject(containsAny(listOfString, "F77", "EOO", "F99"))
    then
        $eligibilityDomainObject.setIsComplexPhysicalHealth(true);
end
import static org.apache.commons.collections4.CollectionUtils.intersection;
import static com.google.common.collect.Sets.newHashSet;

rule "Problems related to social environment"
    when
        $eligibilityDomainObject:EligibilityDomainObject(
            $values : intersection(listOfString, newHashSet("F77", "EOO", "F99")), 
            !$values.isEmpty())
    then
        $eligibilityDomainObject.setIsComplexPhysicalHealth(true);
        System.out.println($values);
end
-----------------------
rule "Problems related to social environment"
    when
        $eligibilityDomainObject:EligibilityDomainObject($listOfString : listOfString)
            value: String(value in ("F77", "EOO", "F99") ) from $listOfString
    then
        $eligibilityDomainObject.setIsComplexPhysicalHealth(true);
end
import static org.apache.commons.collections4.CollectionUtils.containsAny;

rule "Problems related to social environment"
    when
        $eligibilityDomainObject:EligibilityDomainObject(containsAny(listOfString, "F77", "EOO", "F99"))
    then
        $eligibilityDomainObject.setIsComplexPhysicalHealth(true);
end
import static org.apache.commons.collections4.CollectionUtils.intersection;
import static com.google.common.collect.Sets.newHashSet;

rule "Problems related to social environment"
    when
        $eligibilityDomainObject:EligibilityDomainObject(
            $values : intersection(listOfString, newHashSet("F77", "EOO", "F99")), 
            !$values.isEmpty())
    then
        $eligibilityDomainObject.setIsComplexPhysicalHealth(true);
        System.out.println($values);
end
-----------------------
rule "Problems related to social environment"
    when
        $eligibilityDomainObject:EligibilityDomainObject($listOfString : listOfString)
            value: String(value in ("F77", "EOO", "F99") ) from $listOfString
    then
        $eligibilityDomainObject.setIsComplexPhysicalHealth(true);
end
import static org.apache.commons.collections4.CollectionUtils.containsAny;

rule "Problems related to social environment"
    when
        $eligibilityDomainObject:EligibilityDomainObject(containsAny(listOfString, "F77", "EOO", "F99"))
    then
        $eligibilityDomainObject.setIsComplexPhysicalHealth(true);
end
import static org.apache.commons.collections4.CollectionUtils.intersection;
import static com.google.common.collect.Sets.newHashSet;

rule "Problems related to social environment"
    when
        $eligibilityDomainObject:EligibilityDomainObject(
            $values : intersection(listOfString, newHashSet("F77", "EOO", "F99")), 
            !$values.isEmpty())
    then
        $eligibilityDomainObject.setIsComplexPhysicalHealth(true);
        System.out.println($values);
end

Problem with pattern matching in Drools 7.57.0.Final

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@DroolsSession(
        resources = "classpath*:**/section06/step5/*",
        showStateTransitionPopup = true)
public class Section6Step5Test {
    
    @RegisterExtension
    public DroolsAssert drools = new DroolsAssert();
    
    @Test
    public void test() {
        
        ApplicationRepository.getPassports().forEach(drools::insert);
        ApplicationRepository.getVisaApplications().forEach(drools::insert);
        
        drools.getSession().getAgenda().getAgendaGroup("issue-visa").setFocus();
        drools.getSession().getAgenda().getAgendaGroup("validate-application").setFocus();
        drools.getSession().getAgenda().getAgendaGroup("validate-passport").setFocus();
        
        drools.fireAllRules();
        
        assertEquals(1, drools.getObjects(Visa.class).size());
    }
}

How to test list length in Drools 7.59?

copy iconCopydownload iconDownload
rule "Person has 3 or more existing checked out books"
when
  BookEvent( type == BookEventType.BORROW )
  $person: Person( $books: checkedOutBooks, $books.size >= 3 )
  $book1: Book() from $person.checkedOutBooks.get(0)
  $book3: Book(name == 'book3') from $person.checkedOutBooks
  $bookNames: List(size >= 3) from accumulate (Book($name: name) from $books, collectList($name)) 
then
  System.out.println("First book " + $book1);
  System.out.println("Third book " + $book3);
  System.out.println("Book names " + $bookNames);
  System.out.println("Books " + $books);
end

Potential OptaPlanner/Drools Bug: Strange MultiAccumulate ClassCastException

copy iconCopydownload iconDownload
$cc : MyConstraintConfiguration()
accumulate(PlanningEntity($key : key, 
                          $value : $cc.getCachedValue($key)
...

Community Discussions

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  • drools getting error : handle not found for object is it in working memory
  • Drools - how do I compare a string value present in a Java Object which is present inside a List
  • How to loop through a list to check if an item is a memberOf another list
Trending Discussions on drools

QUESTION

How to deal with publishing promotion issues Hybris 2105?

Asked 2022-Feb-16 at 07:14

We have migrated our SAP Hybris from 2011 to 2105.

There are some issues coming while publishing new promotions, which seem to work fine in the lower version.When we publish a promotion(even OOB promotion like in Conditions CMS Site and in Action 10% discount on cart) and when I publish the promotion, I get an error like:

   ruleOrderEntryFixedDiscountAction.executeAction(new 
   DefaultDroolsRuleActionContext(variables, kcontext), 
   ["value_uuid":"6e732228-89fe-4f4e-8dea-5235dee2ccd7", 
    "bundleSize":new Integer(4), "bundleSize_uuid":"49803399- 
     53a8-44b6-85cd-35c1b83235d7", "bundleLimit_uuid":"778299c6- 
     75bd-414e-97bb-3e5fe1aa0bf9", "bundleLimit":new Integer(2), 
     "value":new BigDecimal("50")]);
     $groupExecution.trackRuleGroupExecution($config);:
     [Error: unable to resolve method using strict-mode: 
     org.drools.core.spi.KnowledgeHelper.$groupExecution()]

ANSWER

Answered 2022-Feb-02 at 20:56

This is due to some changes in the drools rule engine. This causes an exception during the parsing of older Drools Rule.

To solve this, you can

  • Make the content of all drools rules blank, and republish all rules to have correct and active drools rules for all your promotions. Example of a script: You need to disable the interceptors as they might prevent you from changing the rule content

  import de.hybris.platform.commerceservices.search.pagedata.PageableData
  import de.hybris.platform.servicelayer.search.FlexibleSearchQuery
  import com.google.common.collect.ImmutableMap;
  import de.hybris.platform.servicelayer.interceptor.impl.InterceptorExecutionPolicy;
  import de.hybris.platform.servicelayer.session.SessionExecutionBody;
  import de.hybris.platform.servicelayer.session.SessionService;
  import com.google.common.collect.ImmutableSet;


  int start = 0
  int pageSize = 1000
  int total = pageSize

  final FlexibleSearchQuery searchQuery = new FlexibleSearchQuery("select {PK} from {DroolsRule} ORDER BY {PK}")

  searchQuery.setCount(pageSize)
  searchQuery.setNeedTotal(true)

  while (start < total) {
      searchQuery.setStart(start)
      def searchResult = flexibleSearchService.search(searchQuery)

      searchResult.getResult().each {
          final Map<String, Object> params = ImmutableMap.of(InterceptorExecutionPolicy.DISABLED_INTERCEPTOR_TYPES,
              ImmutableSet.of(InterceptorExecutionPolicy.InterceptorType.PREPARE,InterceptorExecutionPolicy.InterceptorType.VALIDATE));

          sessionService.executeInLocalViewWithParams(params, new SessionExecutionBody() {
              @Override
              public void executeWithoutResult() {
                  it.setRuleContent("");
                  modelService.save(it);
              }
          });
      }

      total = searchResult.getTotalCount()
      start += pageSize
  }

  println "Script has been completed."

OR

  • Remove all DroolsRule objects if you no longer need them. Do note that removing these old rules might have impact on existing orders tied to that Drools rule. The promotion results will still be attached, but it will be hard to tell what promotion triggered that result.

I would advise going for the first option as to not lose any data

Don't forget to republish your rules after performing either of the steps

Source https://stackoverflow.com/questions/70929736

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

XML external entity (XXE) vulnerability in Drools and jBPM before 6.2.0 allows remote attackers to read arbitrary files or possibly have other unspecified impact via a crafted BPMN2 file.

Install drools

You can download it from GitHub, Maven.
You can use drools like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the drools component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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