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.

     * Assumes it is a maximum heap.
     *
     * @param index the index of the element
     */
    protected void percolateDownMaxHeap(final int index) {
        final Activation element = elements[index];
        int hole = index;


        while ((hole * 2) <= size) {
            int child = hole * 2;

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     *
     * @param index the index of the element to be percolated up
     */
    protected void percolateUpMaxHeap(final int index) {
        int hole = index;
        Activation element = elements[hole];


        while (hole > 1 && compare(element, elements[hole / 2]) > 0) {
            // save element that is being pushed down
            // as the element "bubble" is percolated up
            final int next = hole / 2;

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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();


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

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        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;
                }
            }
        }

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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.kBase == null) ? null : context.kBase.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.kBase == null) ? null : context.kBase.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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        workingMemory.setGlobal( "map",
                                 map );


        final LeftTupleImpl tuple = new MockTuple( new HashMap() );
        tuple.setLeftTupleSink( new RuleTerminalNode(1, new CompositeObjectSinkAdapterTest.MockBetaNode(), rule,rule.getLhs(), 0,new BuildContext(kBase, null) )  );
        final Activation activation = new MockActivation( rule,
                                                          0,
                                                          rule.getLhs(),
                                                          tuple );


        DefaultKnowledgeHelper knowledgeHelper = new org.drools.core.base.DefaultKnowledgeHelper( ((StatefulKnowledgeSessionImpl)workingMemory) );

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        workingMemory.setGlobal( "map",
                                 map );


        final LeftTupleImpl tuple = new MockTuple( new HashMap() );
        tuple.setLeftTupleSink( new RuleTerminalNode(1, new CompositeObjectSinkAdapterTest.MockBetaNode(), newRule,newRule.getLhs(), 0, new BuildContext(kBase, null) )  );
        final Activation activation = new MockActivation( newRule,
                                                          0,
                                                          newRule.getLhs(),
                                                          tuple );


        final DefaultKnowledgeHelper knowledgeHelper = new org.drools.core.base.DefaultKnowledgeHelper( ((StatefulKnowledgeSessionImpl)workingMemory) );

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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,

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        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;
                    }
                }
            }

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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,

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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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