public static ProtobufMessages.Activation writeActivation(
MarshallerWriteContext context, AgendaItem agendaItem) {
ProtobufMessages.Activation.Builder _activation = ProtobufMessages.Activation.newBuilder();
RuleImpl rule = agendaItem.getRule();
_activation.setPackageName(rule.getPackage());
_activation.setRuleName(rule.getName());
_activation.setTuple(writeTuple(agendaItem.getTuple()));
_activation.setSalience(agendaItem.getSalience());
_activation.setIsActivated(agendaItem.isQueued());
_activation.setEvaluated(agendaItem.isRuleAgendaItem());
if (agendaItem.getActivationGroupNode() != null) {
_activation.setActivationGroup(
agendaItem.getActivationGroupNode().getActivationGroup().getName());
}
if (agendaItem.getFactHandle() != null) {
_activation.setHandleId(agendaItem.getFactHandle().getId());
}
org.drools.core.util.LinkedList<LogicalDependency> list = agendaItem.getLogicalDependencies();
if (list != null && !list.isEmpty()) {
for (LogicalDependency node = list.getFirst(); node != null; node = node.getNext()) {
_activation.addLogicalDependency(((BeliefSet) node.getJustified()).getFactHandle().getId());
}
}
return _activation.build();
}
public static void writeActivation(
MarshallerWriteContext context,
LeftTuple leftTuple,
AgendaItem agendaItem,
RuleTerminalNode ruleTerminalNode)
throws IOException {
ObjectOutputStream stream = context.stream;
stream.writeLong(agendaItem.getActivationNumber());
stream.writeInt(context.terminalTupleMap.get(leftTuple));
stream.writeInt(agendaItem.getSalience());
Rule rule = agendaItem.getRule();
stream.writeUTF(rule.getPackage());
stream.writeUTF(rule.getName());
// context.out.println( "Rule " + rule.getPackage() + "." + rule.getName() );
// context.out.println( "AgendaItem long:" +
// agendaItem.getPropagationContext().getPropagationNumber() );
stream.writeLong(agendaItem.getPropagationContext().getPropagationNumber());
if (agendaItem.getActivationGroupNode() != null) {
stream.writeBoolean(true);
// context.out.println( "ActivationGroup bool:" + true );
stream.writeUTF(agendaItem.getActivationGroupNode().getActivationGroup().getName());
// context.out.println( "ActivationGroup string:" +
// agendaItem.getActivationGroupNode().getActivationGroup().getName() );
} else {
stream.writeBoolean(false);
// context.out.println( "ActivationGroup bool:" + false );
}
stream.writeBoolean(agendaItem.isActivated());
// context.out.println( "AgendaItem bool:" + agendaItem.isActivated() );
if (agendaItem.getFactHandle() != null) {
stream.writeBoolean(true);
stream.writeInt(agendaItem.getFactHandle().getId());
} else {
stream.writeBoolean(false);
}
org.drools.core.util.LinkedList list = agendaItem.getLogicalDependencies();
if (list != null && !list.isEmpty()) {
for (LogicalDependency node = (LogicalDependency) list.getFirst();
node != null;
node = (LogicalDependency) node.getNext()) {
stream.writeShort(PersisterEnums.LOGICAL_DEPENDENCY);
stream.writeInt(((InternalFactHandle) node.getJustified()).getId());
// context.out.println( "Logical Depenency : int " + ((InternalFactHandle)
// node.getFactHandle()).getId() );
}
}
stream.writeShort(PersisterEnums.END);
}
private void doRiaNode(
InternalWorkingMemory wm,
LeftInputAdapterNode liaNode,
PathMemory pmem,
TupleSets<LeftTuple> srcTuples,
BetaNode betaNode,
LeftTupleSinkNode sink,
SegmentMemory[] smems,
int smemIndex,
Memory nodeMem,
BetaMemory bm,
LinkedList<StackEntry> stack,
RuleExecutor executor) {
RiaPathMemory pathMem = bm.getRiaRuleMemory();
SegmentMemory[] subnetworkSmems = pathMem.getSegmentMemories();
SegmentMemory subSmem = null;
for (int i = 0; subSmem == null; i++) {
// segment positions outside of the subnetwork, in the parent chain, are null
// so we must iterate to find the first non null segment memory
subSmem = subnetworkSmems[i];
}
// Resume the node after the riaNode segment has been processed and the right input memory
// populated
StackEntry stackEntry =
new StackEntry(
liaNode,
betaNode,
bm.getNodePosMaskBit(),
sink,
pmem,
nodeMem,
smems,
smemIndex,
srcTuples,
false,
false);
stack.add(stackEntry);
if (log.isTraceEnabled()) {
int offset = getOffset(betaNode);
log.trace(
"{} RiaQueue {} {}", indent(offset), betaNode.toString(), srcTuples.toStringSizes());
}
TupleSets<LeftTuple> subLts = subSmem.getStagedLeftTuples().takeAll();
// node is first in the segment, so bit is 1
innerEval(
liaNode,
pathMem,
subSmem.getRootNode(),
1,
subSmem.getNodeMemories().getFirst(),
subnetworkSmems,
subSmem.getPos(),
subLts,
wm,
stack,
true,
executor);
}
public void clearAndCancelStagedActivations() {
if (getStageActivationsGroup().isEmpty()) {
return;
}
org.drools.core.util.LinkedList<ActivationGroupNode> list =
getStageActivationsGroup().getList();
final EventSupport eventsupport = (EventSupport) this.workingMemory;
for (ActivationGroupNode node = list.removeFirst(); node != null; node = list.removeFirst()) {
AgendaItem item = (AgendaItem) node.getActivation();
// This must be set to false otherwise modify won't work properly
item.setQueued(false);
eventsupport
.getAgendaEventSupport()
.fireActivationCancelled(item, this.workingMemory, MatchCancelledCause.CLEAR);
}
}
public int unstageActivations() {
if (!declarativeAgenda || getStageActivationsGroup().isEmpty()) {
return 0;
}
org.drools.core.util.LinkedList<ActivationGroupNode> list =
getStageActivationsGroup().getList();
int i = 0;
for (ActivationGroupNode node = list.removeFirst(); node != null; node = list.removeFirst()) {
AgendaItem item = (AgendaItem) node.getActivation();
item.setActivationGroupNode(null);
addActivation(item, false);
i++;
}
notifyHalt();
return i;
}
public static ProtobufMessages.Activation writeActivation(
MarshallerWriteContext context, AgendaItem agendaItem) {
ProtobufMessages.Activation.Builder _activation = ProtobufMessages.Activation.newBuilder();
Rule rule = agendaItem.getRule();
_activation.setPackageName(rule.getPackage());
_activation.setRuleName(rule.getName());
ProtobufMessages.Tuple.Builder _tb = ProtobufMessages.Tuple.newBuilder();
for (LeftTuple entry = agendaItem.getTuple(); entry != null; entry = entry.getParent()) {
InternalFactHandle handle = entry.getLastHandle();
_tb.addHandleId(handle.getId());
}
_activation.setTuple(_tb.build());
_activation.setSalience(agendaItem.getSalience());
_activation.setIsActivated(agendaItem.isActivated());
if (agendaItem.getActivationGroupNode() != null) {
_activation.setActivationGroup(
agendaItem.getActivationGroupNode().getActivationGroup().getName());
}
if (agendaItem.getFactHandle() != null) {
_activation.setHandleId(agendaItem.getFactHandle().getId());
}
org.drools.core.util.LinkedList list = agendaItem.getLogicalDependencies();
if (list != null && !list.isEmpty()) {
for (LogicalDependency node = (LogicalDependency) list.getFirst();
node != null;
node = (LogicalDependency) node.getNext()) {
_activation.addLogicalDependency(((InternalFactHandle) node.getJustified()).getId());
}
}
return _activation.build();
}
public void outerEval(
LeftInputAdapterNode liaNode,
PathMemory pmem,
NetworkNode node,
long bit,
Memory nodeMem,
SegmentMemory[] smems,
int smemIndex,
TupleSets<LeftTuple> trgTuples,
InternalWorkingMemory wm,
LinkedList<StackEntry> stack,
boolean processRian,
RuleExecutor executor) {
innerEval(
liaNode,
pmem,
node,
bit,
nodeMem,
smems,
smemIndex,
trgTuples,
wm,
stack,
processRian,
executor);
while (true) {
// eval
if (!stack.isEmpty()) {
StackEntry entry = stack.removeLast();
evalStackEntry(entry, stack, executor, wm);
} else {
return; // stack is empty return;
}
}
}
private int fire(
InternalWorkingMemory wm,
AgendaFilter filter,
int fireCount,
int fireLimit,
LinkedList<StackEntry> outerStack,
InternalAgenda agenda,
boolean fireUntilHalt) {
int localFireCount = 0;
if (!tupleList.isEmpty()) {
RuleTerminalNode rtn = (RuleTerminalNode) pmem.getNetworkNode();
if (!fireExitedEarly && isDeclarativeAgendaEnabled()) {
// Network Evaluation can notify meta rules, which should be given a chance to fire first
RuleAgendaItem nextRule = agenda.peekNextRule();
if (!isHighestSalience(nextRule, ruleAgendaItem.getSalience())) {
fireExitedEarly = true;
return localFireCount;
}
}
while (!tupleList.isEmpty()) {
LeftTuple leftTuple;
if (queue != null) {
leftTuple = (LeftTuple) queue.dequeue();
tupleList.remove(leftTuple);
} else {
leftTuple = tupleList.removeFirst();
((Activation) leftTuple).setQueued(false);
}
rtn =
(RuleTerminalNode)
leftTuple
.getSink(); // branches result in multiple RTN's for a given rule, so unwrap per
// LeftTuple
RuleImpl rule = rtn.getRule();
PropagationContext pctx = leftTuple.getPropagationContext();
pctx = RuleTerminalNode.findMostRecentPropagationContext(leftTuple, pctx);
// check if the rule is not effective or
// if the current Rule is no-loop and the origin rule is the same then return
if (cancelAndContinue(wm, rtn, rule, leftTuple, pctx, filter)) {
continue;
}
AgendaItem item = (AgendaItem) leftTuple;
if (agenda.getActivationsFilter() != null
&& !agenda.getActivationsFilter().accept(item, wm, rtn)) {
// only relevant for seralization, to not refire Matches already fired
continue;
}
agenda.fireActivation(item);
localFireCount++;
if (rtn.getLeftTupleSource() == null) {
break; // The activation firing removed this rule from the rule base
}
int salience =
ruleAgendaItem.getSalience(); // dyanmic salience may have updated it, so get again.
if (queue != null && !queue.isEmpty() && salience != queue.peek().getSalience()) {
ruleAgendaItem.dequeue();
ruleAgendaItem.setSalience(queue.peek().getSalience());
ruleAgendaItem.getAgendaGroup().add(ruleAgendaItem);
salience = ruleAgendaItem.getSalience();
}
RuleAgendaItem nextRule = agenda.peekNextRule();
if (haltRuleFiring(nextRule, fireCount, fireLimit, localFireCount, agenda, salience)) {
break; // another rule has high priority and is on the agenda, so evaluate it first
}
reEvaluateNetwork(wm, outerStack, fireUntilHalt);
wm.executeQueuedActions();
if (tupleList.isEmpty() && !outerStack.isEmpty()) {
// the outer stack is nodes needing evaluation, once all rule firing is done
// such as window expiration, which must be done serially
StackEntry entry = outerStack.removeFirst();
NETWORK_EVALUATOR.evalStackEntry(entry, outerStack, outerStack, this, wm);
}
}
}
removeRuleAgendaItemWhenEmpty(wm);
fireExitedEarly = false;
return localFireCount;
}
public static void writeTruthMaintenanceSystem(
MarshallerWriteContext context, ProtobufMessages.RuleData.Builder _session)
throws IOException {
ObjectHashMap assertMap = context.wm.getTruthMaintenanceSystem().getAssertMap();
ObjectHashMap justifiedMap = context.wm.getTruthMaintenanceSystem().getJustifiedMap();
if (!assertMap.isEmpty() || !justifiedMap.isEmpty()) {
EqualityKey[] keys = new EqualityKey[assertMap.size()];
org.drools.core.util.Iterator it = assertMap.iterator();
int i = 0;
for (org.drools.core.util.ObjectHashMap.ObjectEntry entry =
(org.drools.core.util.ObjectHashMap.ObjectEntry) it.next();
entry != null;
entry = (org.drools.core.util.ObjectHashMap.ObjectEntry) it.next()) {
EqualityKey key = (EqualityKey) entry.getKey();
keys[i++] = key;
}
Arrays.sort(keys, EqualityKeySorter.instance);
ProtobufMessages.TruthMaintenanceSystem.Builder _tms =
ProtobufMessages.TruthMaintenanceSystem.newBuilder();
// write the assert map of Equality keys
for (EqualityKey key : keys) {
ProtobufMessages.EqualityKey.Builder _key = ProtobufMessages.EqualityKey.newBuilder();
_key.setStatus(key.getStatus());
_key.setHandleId(key.getFactHandle().getId());
if (key.getOtherFactHandle() != null && !key.getOtherFactHandle().isEmpty()) {
for (InternalFactHandle handle : key.getOtherFactHandle()) {
_key.addOtherHandle(handle.getId());
}
}
_tms.addKey(_key.build());
}
it = justifiedMap.iterator();
i = 0;
for (org.drools.core.util.ObjectHashMap.ObjectEntry entry =
(org.drools.core.util.ObjectHashMap.ObjectEntry) it.next();
entry != null;
entry = (org.drools.core.util.ObjectHashMap.ObjectEntry) it.next()) {
ProtobufMessages.Justification.Builder _justification =
ProtobufMessages.Justification.newBuilder();
_justification.setHandleId(((Integer) entry.getKey()).intValue());
org.drools.core.util.LinkedList list = (org.drools.core.util.LinkedList) entry.getValue();
for (LinkedListEntry node = (LinkedListEntry) list.getFirst();
node != null;
node = (LinkedListEntry) node.getNext()) {
LogicalDependency dependency = (LogicalDependency) node.getObject();
org.drools.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();
_justification.addActivation(_activation);
}
_tms.addJustification(_justification.build());
}
_session.setTms(_tms.build());
}
}
public void writeExternal(ObjectOutput out) throws IOException {
super.writeExternal(out);
out.writeInt(hashCode);
out.writeInt(status);
}
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
super.readExternal(in);
hashCode = in.readInt();
status = in.readInt();
}
private boolean evalQueryNode(
LeftInputAdapterNode liaNode,
PathMemory pmem,
NetworkNode node,
long bit,
Memory nodeMem,
SegmentMemory[] smems,
int smemIndex,
TupleSets<LeftTuple> trgTuples,
InternalWorkingMemory wm,
LinkedList<StackEntry> stack,
TupleSets<LeftTuple> srcTuples,
LeftTupleSinkNode sink,
TupleSets<LeftTuple> stagedLeftTuples) {
QueryElementNodeMemory qmem = (QueryElementNodeMemory) nodeMem;
if (srcTuples.isEmpty() && qmem.getResultLeftTuples().isEmpty()) {
// no point in evaluating query element, and setting up stack, if there is nothing to process
return false;
}
QueryElementNode qnode = (QueryElementNode) node;
if (log.isTraceEnabled()) {
int offset = getOffset(node);
log.trace(
"{} query result tuples {}", indent(offset), qmem.getResultLeftTuples().toStringSizes());
}
// result tuples can happen when reactivity occurs inside of the query, prior to evaluation
// we will need special behaviour to add the results again, when this query result resumes
trgTuples.addAll(qmem.getResultLeftTuples());
qmem.setNodeCleanWithoutNotify();
if (!srcTuples.isEmpty()) {
// only process the Query Node if there are src tuples
StackEntry stackEntry =
new StackEntry(
liaNode, node, bit, sink, pmem, nodeMem, smems, smemIndex, trgTuples, true, true);
stack.add(stackEntry);
pQueryNode.doNode(
qnode,
(QueryElementNodeMemory) nodeMem,
stackEntry,
wm,
srcTuples,
trgTuples,
stagedLeftTuples);
SegmentMemory qsmem = ((QueryElementNodeMemory) nodeMem).getQuerySegmentMemory();
List<PathMemory> qpmems = qsmem.getPathMemories();
// Build the evaluation information for each 'or' branch
for (int i = 0; i < qpmems.size(); i++) {
PathMemory qpmem = qpmems.get(i);
pmem = qpmem;
smems = qpmem.getSegmentMemories();
smemIndex = 0;
SegmentMemory smem = smems[smemIndex]; // 0
liaNode = (LeftInputAdapterNode) smem.getRootNode();
if (liaNode == smem.getTipNode()) {
// segment only has liaNode in it
// nothing is staged in the liaNode, so skip to next segment
smem = smems[++smemIndex]; // 1
node = smem.getRootNode();
nodeMem = smem.getNodeMemories().getFirst();
bit = 1;
} else {
// lia is in shared segment, so point to next node
node = liaNode.getSinkPropagator().getFirstLeftTupleSink();
nodeMem = smem.getNodeMemories().getFirst().getNext(); // skip the liaNode memory
bit = 2;
}
trgTuples = smem.getStagedLeftTuples().takeAll();
stackEntry =
new StackEntry(
liaNode, node, bit, null, pmem, nodeMem, smems, smemIndex, trgTuples, false, true);
if (log.isTraceEnabled()) {
int offset = getOffset(stackEntry.getNode());
log.trace(
"{} ORQueue branch={} {} {}",
indent(offset),
i,
stackEntry.getNode().toString(),
trgTuples.toStringSizes());
}
stack.add(stackEntry);
}
return true;
} else {
return false;
}
}
private void doRiaNode(
InternalWorkingMemory wm,
LeftInputAdapterNode liaNode,
PathMemory rmem,
LeftTupleSets srcTuples,
BetaNode betaNode,
LeftTupleSinkNode sink,
SegmentMemory[] smems,
int smemIndex,
Memory nodeMem,
BetaMemory bm,
LinkedList<StackEntry> stack,
Set<String> visitedRules,
RuleExecutor executor) {
RiaPathMemory pathMem = bm.getRiaRuleMemory();
SegmentMemory[] subnetworkSmems = pathMem.getSegmentMemories();
SegmentMemory subSmem = null;
for (int i = 0; subSmem == null; i++) {
// segment positions outside of the subnetwork, in the parent chain, are null
// so we must iterate to find the first non null segment memory
subSmem = subnetworkSmems[i];
}
// if (betaNode.getLeftTupleSource().getSinkPropagator().size() == 2) {
// // sub network is not part of share split, so need to handle propagation
// // this ensures the first LeftTuple is actually the subnetwork node
// // and the main outer network now receives the peer, notice the swap at the end
// "srcTuples == peerTuples"
// LeftTupleSets peerTuples = new LeftTupleSets();
// SegmentPropagator.processPeers(srcTuples, peerTuples, betaNode);
// // Make sure subnetwork Segment has tuples to process
// LeftTupleSets subnetworkStaged = subSmem.getStagedLeftTuples();
// subnetworkStaged.addAll(srcTuples);
//
// srcTuples.resetAll();
//
// srcTuples = peerTuples;
// }
// Resume the node after the riaNode segment has been processed and the right input memory
// populated
StackEntry stackEntry =
new StackEntry(
liaNode,
betaNode,
sink,
rmem,
nodeMem,
smems,
smemIndex,
srcTuples,
visitedRules,
false);
stack.add(stackEntry);
if (log.isTraceEnabled()) {
int offset = getOffset(betaNode);
log.trace(
"{} RiaQueue {} {}", indent(offset), betaNode.toString(), srcTuples.toStringSizes());
}
// RightInputAdapterNode riaNode = ( RightInputAdapterNode ) betaNode.getRightInput();
// RiaNodeMemory riaNodeMemory = (RiaNodeMemory) wm.getNodeMemory((MemoryFactory)
// betaNode.getRightInput());
// LeftTupleSets riaStagedTuples =
eval2(
liaNode,
pathMem,
(LeftTupleSink) subSmem.getRootNode(),
subSmem.getNodeMemories().getFirst(),
subnetworkSmems,
subSmem.getPos(),
subSmem.getStagedLeftTuples(),
wm,
stack,
visitedRules,
true,
executor);
}
public void eval2(
LeftInputAdapterNode liaNode,
PathMemory rmem,
NetworkNode node,
Memory nodeMem,
SegmentMemory[] smems,
int smemIndex,
LeftTupleSets trgTuples,
InternalWorkingMemory wm,
LinkedList<StackEntry> stack,
Set<String> visitedRules,
boolean processRian,
RuleExecutor executor) {
LeftTupleSets srcTuples;
SegmentMemory smem = smems[smemIndex];
while (true) {
srcTuples = trgTuples; // previous target, is now the source
if (log.isTraceEnabled()) {
int offset = getOffset(node);
log.trace(
"{} {} {} {}", indent(offset), ++cycle, node.toString(), srcTuples.toStringSizes());
}
if (NodeTypeEnums.isTerminalNode(node)) {
TerminalNode rtn = (TerminalNode) node;
if (node.getType() == NodeTypeEnums.QueryTerminalNode) {
pQtNode.doNode((QueryTerminalNode) rtn, wm, srcTuples, stack);
} else {
pRtNode.doNode(rtn, wm, srcTuples, executor);
}
return;
} else if (NodeTypeEnums.RightInputAdaterNode == node.getType()) {
doRiaNode2(wm, srcTuples, (RightInputAdapterNode) node, stack);
return;
}
LeftTupleSets stagedLeftTuples;
if (node == smem.getTipNode() && smem.getFirst() != null) {
// we are about to process the segment tip, allow it to merge insert/update/delete clashes
// Can happen if the next segments have not yet been initialized
stagedLeftTuples = smem.getFirst().getStagedLeftTuples();
} else {
stagedLeftTuples = null;
}
LeftTupleSinkNode sink = ((LeftTupleSource) node).getSinkPropagator().getFirstLeftTupleSink();
trgTuples = new LeftTupleSets();
if (NodeTypeEnums.isBetaNode(node)) {
BetaNode betaNode = (BetaNode) node;
BetaMemory bm = null;
AccumulateMemory am = null;
if (NodeTypeEnums.AccumulateNode == node.getType()) {
am = (AccumulateMemory) nodeMem;
bm = am.getBetaMemory();
} else {
bm = (BetaMemory) nodeMem;
}
if (processRian && betaNode.isRightInputIsRiaNode()) {
// if the subnetwork is nested in this segment, it will create srcTuples containing
// peer LeftTuples, suitable for the node in the main path.
doRiaNode(
wm,
liaNode,
rmem,
srcTuples,
betaNode,
sink,
smems,
smemIndex,
nodeMem,
bm,
stack,
visitedRules,
executor);
return; // return here is doRiaNode queues the evaluation on the stack, which is necessary
// to handled nested query nodes
}
if (!bm.getDequeu().isEmpty()) {
// If there are no staged RightTuples, then process the Dequeue, popping entries, until
// another insert/expiration clash
RightTupleSets rightTuples = bm.getStagedRightTuples();
if (rightTuples.isEmpty()) {
// nothing staged, so now process the Dequeu
Deque<RightTuple> que = bm.getDequeu();
while (!que.isEmpty()) {
RightTuple rightTuple = que.peekFirst();
if (rightTuple.getPropagationContext().getType() == PropagationContext.EXPIRATION
&&
// Cannot pop an expired fact, if the insert/update has not yet been evaluated.
rightTuple.getStagedType() != LeftTuple.NONE) {
break;
}
switch (rightTuple.getPropagationContext().getType()) {
case PropagationContext.INSERTION:
case PropagationContext.RULE_ADDITION:
rightTuples.addInsert(rightTuple);
break;
case PropagationContext.MODIFICATION:
rightTuples.addUpdate(rightTuple);
break;
case PropagationContext.DELETION:
case PropagationContext.EXPIRATION:
case PropagationContext.RULE_REMOVAL:
rightTuples.addDelete(rightTuple);
break;
}
que.removeFirst();
}
}
if (!bm.getDequeu().isEmpty()) {
// The DeQue is not empty, add StackEntry for reprocessing.
StackEntry stackEntry =
new StackEntry(
liaNode,
node,
sink,
rmem,
nodeMem,
smems,
smemIndex,
trgTuples,
visitedRules,
false);
stack.add(stackEntry);
}
}
switch (node.getType()) {
case NodeTypeEnums.JoinNode:
{
pJoinNode.doNode(
(JoinNode) node, sink, bm, wm, srcTuples, trgTuples, stagedLeftTuples);
break;
}
case NodeTypeEnums.NotNode:
{
pNotNode.doNode((NotNode) node, sink, bm, wm, srcTuples, trgTuples, stagedLeftTuples);
break;
}
case NodeTypeEnums.ExistsNode:
{
pExistsNode.doNode(
(ExistsNode) node, sink, bm, wm, srcTuples, trgTuples, stagedLeftTuples);
break;
}
case NodeTypeEnums.AccumulateNode:
{
pAccNode.doNode(
(AccumulateNode) node, sink, am, wm, srcTuples, trgTuples, stagedLeftTuples);
break;
}
}
} else {
switch (node.getType()) {
case NodeTypeEnums.EvalConditionNode:
{
pEvalNode.doNode(
(EvalConditionNode) node,
(EvalMemory) nodeMem,
sink,
wm,
srcTuples,
trgTuples,
stagedLeftTuples);
break;
}
case NodeTypeEnums.FromNode:
{
pFromNode.doNode(
(FromNode) node,
(FromMemory) nodeMem,
sink,
wm,
srcTuples,
trgTuples,
stagedLeftTuples);
break;
}
case NodeTypeEnums.QueryElementNode:
{
QueryElementNodeMemory qmem = (QueryElementNodeMemory) nodeMem;
if (srcTuples.isEmpty() && qmem.getResultLeftTuples().isEmpty()) {
// no point in evaluating query element, and setting up stack, if there is nothing
// to process
break;
}
QueryElementNode qnode = (QueryElementNode) node;
if (visitedRules == Collections.<String>emptySet()) {
visitedRules = new HashSet<String>();
}
visitedRules.add(qnode.getQueryElement().getQueryName());
// result tuples can happen when reactivity occurs inside of the query, prior to
// evaluation
// we will need special behaviour to add the results again, when this query result
// resumes
trgTuples.addAll(qmem.getResultLeftTuples());
if (!srcTuples.isEmpty()) {
// only process the Query Node if there are src tuples
StackEntry stackEntry =
new StackEntry(
liaNode,
node,
sink,
rmem,
nodeMem,
smems,
smemIndex,
trgTuples,
visitedRules,
true);
stack.add(stackEntry);
pQueryNode.doNode(
qnode, (QueryElementNodeMemory) nodeMem, stackEntry, sink, wm, srcTuples);
SegmentMemory qsmem = ((QueryElementNodeMemory) nodeMem).getQuerySegmentMemory();
List<PathMemory> qrmems = qsmem.getPathMemories();
// Build the evaluation information for each 'or' branch
// Exception fo the last, place each entry on the stack, the last one evaluate now.
for (int i = qrmems.size() - 1; i >= 0; i--) {
PathMemory qrmem = qrmems.get(i);
rmem = qrmem;
smems = qrmem.getSegmentMemories();
smemIndex = 0;
smem = smems[smemIndex]; // 0
liaNode = (LeftInputAdapterNode) smem.getRootNode();
if (liaNode == smem.getTipNode()) {
// segment only has liaNode in it
// nothing is staged in the liaNode, so skip to next segment
smem = smems[++smemIndex]; // 1
node = smem.getRootNode();
nodeMem = smem.getNodeMemories().getFirst();
} else {
// lia is in shared segment, so point to next node
node = liaNode.getSinkPropagator().getFirstLeftTupleSink();
nodeMem =
smem.getNodeMemories().getFirst().getNext(); // skip the liaNode memory
}
trgTuples = smem.getStagedLeftTuples();
if (i != 0 && !trgTuples.isEmpty()) {
// All entries except the last should be placed on the stack for evaluation
// later.
stackEntry =
new StackEntry(
liaNode,
node,
null,
rmem,
nodeMem,
smems,
smemIndex,
trgTuples,
visitedRules,
false);
if (log.isTraceEnabled()) {
int offset = getOffset(stackEntry.getNode());
log.trace(
"{} ORQueue branch={} {} {}",
indent(offset),
i,
stackEntry.getNode().toString(),
trgTuples.toStringSizes());
}
stack.add(stackEntry);
}
}
processRian = true; // make sure it's reset, so ria nodes are processed
continue;
}
break;
}
case NodeTypeEnums.ConditionalBranchNode:
{
pBranchNode.doNode(
(ConditionalBranchNode) node,
(ConditionalBranchMemory) nodeMem,
sink,
wm,
srcTuples,
trgTuples,
stagedLeftTuples,
executor);
break;
}
}
}
if (node != smem.getTipNode()) {
// get next node and node memory in the segment
node = sink;
nodeMem = nodeMem.getNext();
} else {
// Reached end of segment, start on new segment.
SegmentPropagator.propagate(smem, trgTuples, wm);
smem = smems[++smemIndex];
trgTuples = smem.getStagedLeftTuples();
if (log.isTraceEnabled()) {
log.trace("Segment {}", smemIndex);
}
node = (LeftTupleSink) smem.getRootNode();
nodeMem = smem.getNodeMemories().getFirst();
}
processRian = true; // make sure it's reset, so ria nodes are processed
}
}
public void eval1(
LeftInputAdapterNode liaNode,
PathMemory rmem,
NetworkNode node,
Memory nodeMem,
SegmentMemory[] smems,
int smemIndex,
LeftTupleSets trgTuples,
InternalWorkingMemory wm,
LinkedList<StackEntry> stack,
Set<String> visitedRules,
boolean processRian,
RuleExecutor executor) {
while (true) {
eval2(
liaNode,
rmem,
node,
nodeMem,
smems,
smemIndex,
trgTuples,
wm,
stack,
visitedRules,
processRian,
executor);
// eval
if (!stack.isEmpty()) {
StackEntry entry = stack.removeLast();
node = entry.getNode();
nodeMem = entry.getNodeMem();
trgTuples = entry.getTrgTuples();
if (node.getType() == NodeTypeEnums.QueryElementNode) {
// copy across the results, if any from the query node memory
trgTuples.addAll(((QueryElementNodeMemory) nodeMem).getResultLeftTuples());
}
LeftTupleSinkNode sink = entry.getSink();
rmem = entry.getRmem();
smems = entry.getSmems();
smemIndex = entry.getSmemIndex();
visitedRules = entry.getVisitedRules();
if (NodeTypeEnums.isBetaNode(node)) {
// queued beta nodes do not want their ria node evaluated, otherwise there is recursion
processRian = false;
} else {
processRian = true;
}
if (entry.isResumeFromNextNode()) {
SegmentMemory smem = smems[smemIndex];
if (node != smem.getTipNode()) {
// get next node and node memory in the segment
LeftTupleSink nextSink = sink.getNextLeftTupleSinkNode();
if (nextSink == null) {
node = sink;
} else {
// there is a nested subnetwork, take out path
node = nextSink;
}
nodeMem = nodeMem.getNext();
} else {
// Reached end of segment, start on new segment.
SegmentPropagator.propagate(smem, trgTuples, wm);
smem = smems[++smemIndex];
trgTuples = smem.getStagedLeftTuples();
node = (LeftTupleSink) smem.getRootNode();
nodeMem = smem.getNodeMemories().getFirst();
}
}
if (log.isTraceEnabled()) {
int offset = getOffset(node);
log.trace("{} Resume {} {}", indent(offset), node.toString(), trgTuples.toStringSizes());
}
} else {
return; // stack is empty return;
}
}
}
