public boolean accept(
Activation activation,
PropagationContext context,
InternalWorkingMemory workingMemory,
TerminalNode rtn) {
if (activation.isRuleAgendaItem()) {
ActivationKey key =
PersisterHelper.createActivationKey(
activation.getRule().getPackageName(),
activation.getRule().getName(),
activation.getTuple());
if (!this.rneActivations.containsKey(key)) {
rneaToFire.add((RuleAgendaItem) activation);
}
return true;
} else {
ActivationKey key =
PersisterHelper.createActivationKey(
rtn.getRule().getPackageName(), rtn.getRule().getName(), activation.getTuple());
// add the tuple to the cache for correlation
this.tuplesCache.put(key, activation.getTuple());
// check if there was an active activation for it
return !this.dormantActivations.containsKey(key);
}
}
public int compare(org.drools.core.spi.Activation o1, org.drools.core.spi.Activation o2) {
int result = o1.getRule().getName().compareTo(o2.getRule().getName());
if (result == 0) {
LeftTuple t1 = o1.getTuple();
LeftTuple t2 = o2.getTuple();
while (result == 0 && t1 != null && t2 != null) {
if (t1.getLastHandle() != null && t2.getLastHandle() != null) {
// can be null for eval, not and exists that have no right input
result = t1.getLastHandle().getId() - t2.getLastHandle().getId();
}
t1 = t1.getParent();
t2 = t2.getParent();
}
}
return result;
}
private static void writeBeliefSet(
MarshallerWriteContext context,
BeliefSet beliefSet,
org.drools.core.marshalling.impl.ProtobufMessages.EqualityKey.Builder _key)
throws IOException {
ProtobufMessages.BeliefSet.Builder _beliefSet = ProtobufMessages.BeliefSet.newBuilder();
_beliefSet.setHandleId(beliefSet.getFactHandle().getId());
ObjectMarshallingStrategyStore objectMarshallingStrategyStore =
context.objectMarshallingStrategyStore;
// for ( LinkedListEntry node = (LinkedListEntry) beliefSet.getFirst(); node != null; node =
// (LinkedListEntry) node.getNext() ) {
FastIterator it = beliefSet.iterator();
for (LinkedListEntry node = (LinkedListEntry) beliefSet.getFirst();
node != null;
node = (LinkedListEntry) it.next(node)) {
LogicalDependency belief = (LogicalDependency) node.getObject();
ProtobufMessages.LogicalDependency.Builder _logicalDependency =
ProtobufMessages.LogicalDependency.newBuilder();
// _belief.setActivation( value )
LogicalDependency dependency = (LogicalDependency) node.getObject();
org.drools.core.spi.Activation activation = dependency.getJustifier();
ProtobufMessages.Activation _activation =
ProtobufMessages.Activation.newBuilder()
.setPackageName(activation.getRule().getPackage())
.setRuleName(activation.getRule().getName())
.setTuple(PersisterHelper.createTuple(activation.getTuple()))
.build();
_logicalDependency.setActivation(_activation);
if (belief.getObject() != null) {
ObjectMarshallingStrategy strategy =
objectMarshallingStrategyStore.getStrategyObject(belief.getObject());
Integer index = context.getStrategyIndex(strategy);
_logicalDependency.setObjectStrategyIndex(index.intValue());
_logicalDependency.setObject(
ByteString.copyFrom(
strategy.marshal(
context.strategyContext.get(strategy), context, belief.getObject())));
}
if (belief.getValue() != null) {
ObjectMarshallingStrategy strategy =
objectMarshallingStrategyStore.getStrategyObject(belief.getValue());
Integer index = context.getStrategyIndex(strategy);
_logicalDependency.setValueStrategyIndex(index.intValue());
_logicalDependency.setValue(
ByteString.copyFrom(
strategy.marshal(
context.strategyContext.get(strategy), context, belief.getValue())));
}
_beliefSet.addLogicalDependency(_logicalDependency.build());
}
_key.setBeliefSet(_beliefSet);
}
private boolean checkProcessInstance(Activation activation, long processInstanceId) {
final Map<String, Declaration> declarations = activation.getSubRule().getOuterDeclarations();
for (Declaration declaration : declarations.values()) {
if ("processInstance".equals(declaration.getIdentifier())) {
Object value =
declaration.getValue(workingMemory, activation.getTuple().get(declaration).getObject());
if (value instanceof ProcessInstance) {
return ((ProcessInstance) value).getId() == processInstanceId;
}
}
}
return true;
}
public Trigger createTrigger(Activation item, InternalWorkingMemory wm) {
long timestamp = wm.getTimerService().getCurrentTime();
String[] calendarNames = item.getRule().getCalendars();
Calendars calendars = wm.getCalendars();
Declaration[][] timerDeclrs = ((AgendaItem) item).getTerminalNode().getTimerDeclarations();
ScheduledAgendaItem schItem = (ScheduledAgendaItem) item;
DefaultJobHandle jh = null;
if (schItem.getJobHandle() != null) {
jh = (DefaultJobHandle) schItem.getJobHandle();
}
return createTrigger(timestamp, item.getTuple(), jh, calendarNames, calendars, timerDeclrs, wm);
}
protected boolean checkProcessInstance(Activation activation) {
final Map<?, ?> declarations = activation.getSubRule().getOuterDeclarations();
for (Iterator<?> it = declarations.values().iterator(); it.hasNext(); ) {
Declaration declaration = (Declaration) it.next();
if ("processInstance".equals(declaration.getIdentifier())
|| "org.kie.api.runtime.process.WorkflowProcessInstance"
.equals(declaration.getTypeName())) {
Object value =
declaration.getValue(
((StatefulKnowledgeSessionImpl) getProcessInstance().getKnowledgeRuntime())
.getInternalWorkingMemory(),
((InternalFactHandle) activation.getTuple().get(declaration)).getObject());
if (value instanceof ProcessInstance) {
return ((ProcessInstance) value).getId() == getProcessInstance().getId();
}
}
}
return true;
}
/**
* Fire this item.
*
* @param activation The activation to fire
* @throws org.drools.core.spi.ConsequenceException If an error occurs while attempting to fire
* the consequence.
*/
public synchronized void fireActivation(final Activation activation) throws ConsequenceException {
// We do this first as if a node modifies a fact that causes a recursion
// on an empty pattern
// we need to make sure it re-activates
this.workingMemory.startOperation();
isFiringActivation = true;
try {
final EventSupport eventsupport = (EventSupport) this.workingMemory;
eventsupport
.getAgendaEventSupport()
.fireBeforeActivationFired(activation, this.workingMemory);
if (activation.getActivationGroupNode() != null) {
// We know that this rule will cancel all other activations in the group
// so lets remove the information now, before the consequence fires
final InternalActivationGroup activationGroup =
activation.getActivationGroupNode().getActivationGroup();
activationGroup.removeActivation(activation);
clearAndCancelActivationGroup(activationGroup);
}
activation.setQueued(false);
try {
this.knowledgeHelper.setActivation(activation);
if (log.isTraceEnabled()) {
log.trace("Fire \"{}\" \n{}", activation.getRule().getName(), activation.getTuple());
}
activation.getConsequence().evaluate(this.knowledgeHelper, this.workingMemory);
this.knowledgeHelper.cancelRemainingPreviousLogicalDependencies();
this.knowledgeHelper.reset();
} catch (final Exception e) {
if (this.legacyConsequenceExceptionHandler != null) {
this.legacyConsequenceExceptionHandler.handleException(activation, this.workingMemory, e);
} else if (this.consequenceExceptionHandler != null) {
this.consequenceExceptionHandler.handleException(
activation, this.workingMemory.getKnowledgeRuntime(), e);
} else {
throw new RuntimeException(e);
}
} finally {
if (activation.getFactHandle() != null) {
// update the Activation in the WM
InternalFactHandle factHandle = activation.getFactHandle();
workingMemory
.getEntryPointNode()
.modifyActivation(factHandle, activation.getPropagationContext(), workingMemory);
activation.getPropagationContext().evaluateActionQueue(workingMemory);
}
// if the tuple contains expired events
for (LeftTuple tuple = activation.getTuple(); tuple != null; tuple = tuple.getParent()) {
if (tuple.getLastHandle() == null) {
// can be null for eval, not and exists that have no right input
continue;
}
if (tuple.getLastHandle().isEvent()) {
EventFactHandle handle = (EventFactHandle) tuple.getLastHandle();
// decrease the activation count for the event
handle.decreaseActivationsCount();
// handles "expire" only in stream mode.
if (handle.isExpired()) {
if (handle.getActivationsCount() <= 0) {
// and if no more activations, retract the handle
handle.getEntryPoint().retract(handle);
}
}
}
}
}
eventsupport.getAgendaEventSupport().fireAfterActivationFired(activation, this.workingMemory);
unstageActivations();
} finally {
isFiringActivation = false;
if (mustNotifyHalt) {
mustNotifyHalt = false;
notifyHalt();
}
this.workingMemory.endOperation();
}
}
