Examples of org.drools.core.spi.Activation

org.drools.core.spi.Activation
When a Tuple fully matches a rule it is added to the Agenda As an Activation. Each Activation is assigned a number, this number is determined by the WorkingMemory all Activations created from a single insert, update, retract are assgigned the same Activation number.

                            final InternalWorkingMemory workingMemory) {
            if ( leftTuple.getLeftTupleSink() != node ) {
                return;
            }


            final Activation activation = (Activation) leftTuple.getObject();


            // this is to catch a race condition as activations are activated and unactivated on timers
            if ( activation instanceof ScheduledAgendaItem ) {
                ScheduledAgendaItem scheduled = (ScheduledAgendaItem) activation;
                workingMemory.getTimerService().removeJob( scheduled.getJobHandle() );
                scheduled.getJobHandle().setCancel( true );
            }


            if ( activation.isQueued() ) {
                activation.remove();
                ((EventSupport) workingMemory).getAgendaEventSupport().fireActivationCancelled( activation,
                                                                                                workingMemory,
                                                                                                MatchCancelledCause.CLEAR );
            }

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            InternalFactHandle handle = (InternalFactHandle) context.handles.get( _key.getHandleId() );
            // phreak might serialize empty belief sets, so he have to handle it during deserialization 
            if( _beliefSet.getLogicalDependencyCount() > 0 ) {
                for ( ProtobufMessages.LogicalDependency _logicalDependency : _beliefSet.getLogicalDependencyList() ) {
                    ProtobufMessages.Activation _activation = _logicalDependency.getActivation();
                    Activation activation = (Activation) context.filter.getTuplesCache().get(
                                                                                              PersisterHelper.createActivationKey( _activation.getPackageName(),
                                                                                                                                   _activation.getRuleName(),
                                                                                                                                   _activation.getTuple() ) ).getObject();


                    Object object = null;
                    ObjectMarshallingStrategy strategy = null;
                    if ( _logicalDependency.hasObjectStrategyIndex() ) {
                        strategy = context.usedStrategies.get( _logicalDependency.getObjectStrategyIndex() );
                        object = strategy.unmarshal( context.strategyContexts.get( strategy ),
                                                     context,
                                                     _logicalDependency.getObject().toByteArray(),
                                                     (context.ruleBase == null) ? null : context.ruleBase.getRootClassLoader() );
                    }


                    Object value = null;
                    if ( _logicalDependency.hasValueStrategyIndex() ) {
                        strategy = context.usedStrategies.get( _logicalDependency.getValueStrategyIndex() );
                        value = strategy.unmarshal( context.strategyContexts.get( strategy ),
                                                    context,
                                                    _logicalDependency.getValue().toByteArray(),
                                                    (context.ruleBase == null) ? null : context.ruleBase.getRootClassLoader() );
                    }


                    ObjectTypeConf typeConf = context.wm.getObjectTypeConfigurationRegistry().getObjectTypeConf( ((NamedEntryPoint) handle.getEntryPoint()).getEntryPoint(),
                                                                                                                 handle.getObject() );
                    tms.readLogicalDependency( handle,
                                               object,
                                               value,
                                               activation,
                                               activation.getPropagationContext(),
                                               activation.getRule(),
                                               typeConf );
                }
            } else {
                handle.getEqualityKey().setBeliefSet( tms.getBeliefSystem().newBeliefSet( handle ) );
            }

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        activationGroup.setTriggeredForRecency( this.workingMemory.getFactHandleFactory().getRecency() );


        for ( final Iterator it = activationGroup.iterator(); it.hasNext(); ) {
            final ActivationGroupNode node = (ActivationGroupNode) it.next();
            final Activation activation = node.getActivation();
            activation.setActivationGroupNode( null );


            if ( activation.isQueued() ) {
                activation.setQueued(false);
                activation.remove();


                RuleExecutor ruleExec = ((RuleTerminalNodeLeftTuple)activation).getRuleAgendaItem().getRuleExecutor();
                ruleExec.removeLeftTuple((LeftTuple) activation);
                eventsupport.getAgendaEventSupport().fireActivationCancelled( activation,
                                                                              this.workingMemory,

View Full Code Here


        RuleFlowGroup systemRuleFlowGroup = this.getRuleFlowGroup( ruleflowGroupName );


        Match[] matches = ((InternalAgendaGroup)systemRuleFlowGroup).getActivations();
        for ( Match match : matches ) {
            Activation act = ( Activation ) match;
            if ( act.isRuleAgendaItem() ) {
                // The lazy RuleAgendaItem must be fully evaluated, to see if there is a rule match
                RuleAgendaItem ruleAgendaItem = (RuleAgendaItem) act;
                ruleAgendaItem.getRuleExecutor().evaluateNetwork(workingMemory);
                LeftTupleList list = ruleAgendaItem.getRuleExecutor().getLeftTupleList();
                for (RuleTerminalNodeLeftTuple lt = (RuleTerminalNodeLeftTuple) list.getFirst(); lt != null; lt = (RuleTerminalNodeLeftTuple) lt.getNext()) {
                    if ( ruleName.equals( lt.getRule().getName() ) ) {
                        if ( checkProcessInstance( lt, processInstanceId ) ) {
                            return true;
                        }
                    }
                }


            }   else {
                if ( ruleName.equals( act.getRule().getName() ) ) {
                    if ( checkProcessInstance( act, processInstanceId ) ) {
                        return true;
                    }
                }
            }

View Full Code Here

        PropagationContext pctx = leftTuple.getPropagationContext();
        pctx = RuleTerminalNode.findMostRecentPropagationContext(leftTuple, pctx);


        RuleTerminalNodeLeftTuple rtnLt = ( RuleTerminalNodeLeftTuple ) leftTuple;


        Activation activation = (Activation) leftTuple;
        activation.setMatched( false );


        InternalAgenda agenda = (InternalAgenda) wm.getAgenda();
        agenda.cancelActivation( leftTuple,
                                 pctx,
                                 wm,

View Full Code Here


        activationGroup.setTriggeredForRecency( this.workingMemory.getFactHandleFactory().getRecency() );


        for ( final Iterator it = activationGroup.iterator(); it.hasNext(); ) {
            final ActivationGroupNode node = (ActivationGroupNode) it.next();
            final Activation activation = node.getActivation();
            activation.setActivationGroupNode( null );


            if ( activation.isQueued() ) {
                activation.setQueued(false);
                activation.remove();


                eventsupport.getAgendaEventSupport().fireActivationCancelled( activation,
                                                                              this.workingMemory,
                                                                              MatchCancelledCause.CLEAR );
            }

View Full Code Here


        RuleFlowGroup systemRuleFlowGroup = this.getRuleFlowGroup( ruleflowGroupName );


        Match[] matches = ((InternalAgendaGroup)systemRuleFlowGroup).getActivations();
        for ( Match match : matches ) {
            Activation act = ( Activation ) match;
            if ( ruleName.equals( act.getRule().getName() ) ) {
                if ( checkProcessInstance( act, processInstanceId ) ) {
                    return true;
                }
            }
        }

View Full Code Here

        PropagationContext pctx = leftTuple.getPropagationContext();
        pctx = RuleTerminalNode.findMostRecentPropagationContext(leftTuple, pctx);


        RuleTerminalNodeLeftTuple rtnLt = ( RuleTerminalNodeLeftTuple ) leftTuple;


        Activation activation = (Activation) leftTuple;
        activation.setMatched( false );


        InternalAgenda agenda = (InternalAgenda) wm.getAgenda();
        agenda.cancelActivation( leftTuple,
                                 pctx,
                                 wm,

View Full Code Here

    public synchronized Activation dequeue() throws NoSuchElementException {
        if ( isEmpty() ) {
            return null;
        }


        final Activation result = this.elements[1];
        dequeue(result.getQueueIndex());


        return result;
    }

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            //throw new NoSuchElementException();
            return null;
        }




        final Activation result = this.elements[index];
        if ( log.isTraceEnabled() ) {
            log.trace( "Queue Removed {} {}", result.getQueueIndex(), result);
        }


        setElement( index,
                    this.elements[this.size] );
        this.elements[this.size] = null;
        this.size--;
        if ( this.size != 0 && index <= this.size ) {
            int compareToParent = 0;
            if ( index > 1 ) {
                compareToParent = compare( this.elements[index],
                                           this.elements[index / 2] );
            }
            if ( index > 1 && compareToParent > 0 ) {
                percolateUpMaxHeap( index );
            } else {
                percolateDownMaxHeap( index );
            }
        }


        result.setQueued(false);
        result.setQueueIndex(-1);


        return result;
    }

View Full Code Here

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Related Classes of org.drools.core.spi.Activation

org.drools.compiler.builder.impl.KnowledgeBuilderTest

org.drools.compiler.compiler.PackageBuilderTest

org.drools.compiler.integrationtests.ExecutionFlowControlTest

org.drools.core.common.ActivationIterator

org.drools.core.common.ActiveActivationIterator

org.drools.core.common.ArrayAgendaGroup

org.drools.core.common.DefaultAgenda

org.drools.core.common.RuleFlowGroupImpl

org.drools.core.marshalling.impl.ProtobufInputMarshaller

org.drools.core.phreak.PhreakRuleTerminalNode

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