public static void dpUpdatesExistentialReorderLeftMemory(
BetaMemory bm, LeftTupleSets srcLeftTuples) {
LeftTupleMemory ltm = bm.getLeftTupleMemory();
// sides must first be re-ordered, to ensure iteration integrity
for (LeftTuple leftTuple = srcLeftTuples.getUpdateFirst(); leftTuple != null; ) {
LeftTuple next = leftTuple.getStagedNext();
if (leftTuple.getMemory() != null) {
ltm.remove(leftTuple);
}
leftTuple = next;
}
for (LeftTuple leftTuple = srcLeftTuples.getUpdateFirst(); leftTuple != null; ) {
LeftTuple next = leftTuple.getStagedNext();
if (leftTuple.getBlocker() == null) {
ltm.add(leftTuple);
for (LeftTuple childLeftTuple = leftTuple.getFirstChild(); childLeftTuple != null; ) {
LeftTuple childNext = childLeftTuple.getLeftParentNext();
childLeftTuple.reAddRight();
childLeftTuple = childNext;
}
}
leftTuple = next;
}
}
public int evaluateNetwork(PathMemory pmem, InternalWorkingMemory wm, RuleExecutor executor) {
SegmentMemory[] smems = pmem.getSegmentMemories();
int smemIndex = 0;
SegmentMemory smem = smems[smemIndex]; // 0
LeftInputAdapterNode liaNode = (LeftInputAdapterNode) smem.getRootNode();
NetworkNode node;
Memory nodeMem;
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
}
LeftTupleSets srcTuples = smem.getStagedLeftTuples();
if (log.isTraceEnabled()) {
log.trace(
"Rule[name={}] segments={} {}",
((TerminalNode) pmem.getNetworkNode()).getRule().getName(),
smems.length,
srcTuples.toStringSizes());
}
Set<String> visitedRules;
if (((TerminalNode) pmem.getNetworkNode()).getType() == NodeTypeEnums.QueryTerminalNode) {
visitedRules = new HashSet<String>();
} else {
visitedRules = Collections.<String>emptySet();
}
LinkedList<StackEntry> stack = new LinkedList<StackEntry>();
eval1(
liaNode,
pmem,
(LeftTupleSink) node,
nodeMem,
smems,
smemIndex,
srcTuples,
wm,
stack,
visitedRules,
true,
executor);
return 0;
}
public void doNode(
NotNode notNode,
LeftTupleSink sink,
BetaMemory bm,
InternalWorkingMemory wm,
LeftTupleSets srcLeftTuples,
LeftTupleSets trgLeftTuples,
LeftTupleSets stagedLeftTuples) {
RightTupleSets srcRightTuples = bm.getStagedRightTuples().takeAll();
if (srcLeftTuples.getDeleteFirst() != null) {
// left deletes must come before right deletes. Otherwise right deletes could
// stage an insertion, that is later deleted in the rightDelete, causing potential problems
doLeftDeletes(bm, srcLeftTuples, trgLeftTuples, stagedLeftTuples);
}
if (srcLeftTuples.getUpdateFirst() != null) {
// must happen before right inserts, so it can find left tuples to block.
RuleNetworkEvaluator.doUpdatesExistentialReorderLeftMemory(bm, srcLeftTuples);
}
if (srcRightTuples.getUpdateFirst() != null) {
RuleNetworkEvaluator.doUpdatesExistentialReorderRightMemory(
bm, notNode, srcRightTuples); // this also preserves the next rightTuple
}
if (srcRightTuples.getInsertFirst() != null) {
// must come before right updates and inserts, as they might cause insert propagation, while
// this causes delete propagations, resulting in staging clash.
doRightInserts(notNode, bm, wm, srcRightTuples, trgLeftTuples, stagedLeftTuples);
}
if (srcRightTuples.getUpdateFirst() != null) {
// must come after rightInserts and before rightDeletes, to avoid staging clash
doRightUpdates(notNode, sink, bm, wm, srcRightTuples, trgLeftTuples, stagedLeftTuples);
}
if (srcRightTuples.getDeleteFirst() != null) {
// must come after rightUpdates, to avoid staging clash
doRightDeletes(notNode, sink, bm, wm, srcRightTuples, trgLeftTuples);
}
if (srcLeftTuples.getUpdateFirst() != null) {
doLeftUpdates(notNode, sink, bm, wm, srcLeftTuples, trgLeftTuples, stagedLeftTuples);
}
if (srcLeftTuples.getInsertFirst() != null) {
doLeftInserts(notNode, sink, bm, wm, srcLeftTuples, trgLeftTuples);
}
srcRightTuples.resetAll();
srcLeftTuples.resetAll();
}
private static boolean processStreamTupleEntry(
TupleEntryQueue tupleQueue, TupleEntry tupleEntry) {
boolean isNonNormalizedDelete = false;
if (log.isTraceEnabled()) {
log.trace(
"Stream removed entry {} {} size {}",
System.identityHashCode(tupleQueue),
tupleEntry,
tupleQueue.size());
}
if (tupleEntry.getLeftTuple() != null) {
SegmentMemory sm = tupleEntry.getNodeMemory().getSegmentMemory();
LeftTupleSets tuples = sm.getStagedLeftTuples();
tupleEntry.getLeftTuple().setPropagationContext(tupleEntry.getPropagationContext());
switch (tupleEntry.getPropagationType()) {
case PropagationContext.INSERTION:
case PropagationContext.RULE_ADDITION:
tuples.addInsert(tupleEntry.getLeftTuple());
break;
case PropagationContext.MODIFICATION:
tuples.addUpdate(tupleEntry.getLeftTuple());
break;
case PropagationContext.DELETION:
case PropagationContext.EXPIRATION:
case PropagationContext.RULE_REMOVAL:
isNonNormalizedDelete = tupleEntry.getLeftTuple().getStagedType() == LeftTuple.NONE;
tuples.addDelete(tupleEntry.getLeftTuple());
break;
}
} else {
BetaMemory bm = (BetaMemory) tupleEntry.getNodeMemory();
tupleEntry.getRightTuple().setPropagationContext(tupleEntry.getPropagationContext());
switch (tupleEntry.getPropagationType()) {
case PropagationContext.INSERTION:
case PropagationContext.RULE_ADDITION:
bm.getStagedRightTuples().addInsert(tupleEntry.getRightTuple());
break;
case PropagationContext.MODIFICATION:
bm.getStagedRightTuples().addUpdate(tupleEntry.getRightTuple());
break;
case PropagationContext.DELETION:
case PropagationContext.EXPIRATION:
case PropagationContext.RULE_REMOVAL:
isNonNormalizedDelete = tupleEntry.getRightTuple().getStagedType() == LeftTuple.NONE;
bm.getStagedRightTuples().addDelete(tupleEntry.getRightTuple());
break;
}
}
return isNonNormalizedDelete;
}
public void doLeftDeletes(
BetaMemory bm,
LeftTupleSets srcLeftTuples,
LeftTupleSets trgLeftTuples,
LeftTupleSets stagedLeftTuples) {
LeftTupleMemory ltm = bm.getLeftTupleMemory();
for (LeftTuple leftTuple = srcLeftTuples.getDeleteFirst(); leftTuple != null; ) {
LeftTuple next = leftTuple.getStagedNext();
RightTuple blocker = leftTuple.getBlocker();
if (blocker == null) {
if (leftTuple.getMemory() != null) {
// it may have been staged and never actually added
ltm.remove(leftTuple);
}
LeftTuple childLeftTuple = leftTuple.getFirstChild();
if (childLeftTuple != null) { // NotNode only has one child
childLeftTuple.setPropagationContext(leftTuple.getPropagationContext());
RuleNetworkEvaluator.deleteLeftChild(
childLeftTuple,
trgLeftTuples,
stagedLeftTuples); // no need to update pctx, as no right available, and pctx will
// exist on a parent LeftTuple anyway
}
} else {
blocker.removeBlocked(leftTuple);
}
leftTuple.clearStaged();
leftTuple = next;
}
}
public void doLeftInserts(
NotNode notNode,
LeftTupleSink sink,
BetaMemory bm,
InternalWorkingMemory wm,
LeftTupleSets srcLeftTuples,
LeftTupleSets trgLeftTuples) {
LeftTupleMemory ltm = bm.getLeftTupleMemory();
RightTupleMemory rtm = bm.getRightTupleMemory();
ContextEntry[] contextEntry = bm.getContext();
BetaConstraints constraints = notNode.getRawConstraints();
for (LeftTuple leftTuple = srcLeftTuples.getInsertFirst(); leftTuple != null; ) {
LeftTuple next = leftTuple.getStagedNext();
FastIterator it = notNode.getRightIterator(rtm);
boolean useLeftMemory = RuleNetworkEvaluator.useLeftMemory(notNode, leftTuple);
constraints.updateFromTuple(contextEntry, wm, leftTuple);
// This method will also remove rightTuples that are from subnetwork where no leftmemory use
// used
RuleNetworkEvaluator.findLeftTupleBlocker(
notNode, rtm, contextEntry, constraints, leftTuple, it, useLeftMemory);
if (leftTuple.getBlocker() == null) {
// tuple is not blocked, so add to memory so other fact handles can attempt to match
if (useLeftMemory) {
ltm.add(leftTuple);
}
trgLeftTuples.addInsert(
sink.createLeftTuple(
leftTuple,
sink,
leftTuple.getPropagationContext(),
useLeftMemory)); // use leftTuple pctx here, as no right input caused the trigger
// anway
}
leftTuple.clearStaged();
leftTuple = next;
}
constraints.resetTuple(contextEntry);
}
public static LeftTuple deleteRightChild(
LeftTuple childLeftTuple, LeftTupleSets trgLeftTuples, LeftTupleSets stagedLeftTuples) {
switch (childLeftTuple.getStagedType()) {
// handle clash with already staged entries
case LeftTuple.INSERT:
stagedLeftTuples.removeInsert(childLeftTuple);
break;
case LeftTuple.UPDATE:
stagedLeftTuples.removeUpdate(childLeftTuple);
break;
}
LeftTuple next = childLeftTuple.getRightParentNext();
trgLeftTuples.addDelete(childLeftTuple);
childLeftTuple.unlinkFromRightParent();
childLeftTuple.unlinkFromLeftParent();
return next;
}
public void doRightDeletes(
NotNode notNode,
LeftTupleSink sink,
BetaMemory bm,
InternalWorkingMemory wm,
RightTupleSets srcRightTuples,
LeftTupleSets trgLeftTuples) {
LeftTupleMemory ltm = bm.getLeftTupleMemory();
RightTupleMemory rtm = bm.getRightTupleMemory();
ContextEntry[] contextEntry = bm.getContext();
BetaConstraints constraints = notNode.getRawConstraints();
for (RightTuple rightTuple = srcRightTuples.getDeleteFirst(); rightTuple != null; ) {
RightTuple next = rightTuple.getStagedNext();
FastIterator it = notNode.getRightIterator(rtm);
// assign now, so we can remove from memory before doing any possible propagations
boolean useComparisonIndex = rtm.getIndexType().isComparison();
RightTuple rootBlocker = useComparisonIndex ? null : (RightTuple) it.next(rightTuple);
if (rightTuple.getMemory() != null) {
// it may have been staged and never actually added
rtm.remove(rightTuple);
}
if (rightTuple.getBlocked() != null) {
for (LeftTuple leftTuple = rightTuple.getBlocked(); leftTuple != null; ) {
LeftTuple temp = leftTuple.getBlockedNext();
leftTuple.clearBlocker();
if (leftTuple.getStagedType() == LeftTuple.UPDATE) {
// ignore, as it will get processed via left iteration. Children cannot be processed
// twice
leftTuple = temp;
continue;
}
constraints.updateFromTuple(contextEntry, wm, leftTuple);
if (useComparisonIndex) {
rootBlocker = rtm.getFirst(leftTuple, null, it);
}
// we know that older tuples have been checked so continue next
for (RightTuple newBlocker = rootBlocker;
newBlocker != null;
newBlocker = (RightTuple) it.next(newBlocker)) {
if (constraints.isAllowedCachedLeft(contextEntry, newBlocker.getFactHandle())) {
leftTuple.setBlocker(newBlocker);
newBlocker.addBlocked(leftTuple);
break;
}
}
if (leftTuple.getBlocker() == null) {
// was previous blocked and not in memory, so add
ltm.add(leftTuple);
trgLeftTuples.addInsert(
sink.createLeftTuple(leftTuple, sink, rightTuple.getPropagationContext(), true));
}
leftTuple = temp;
}
}
rightTuple.nullBlocked();
rightTuple.clearStaged();
rightTuple = next;
}
constraints.resetTuple(contextEntry);
}
public void doRightUpdates(
NotNode notNode,
LeftTupleSink sink,
BetaMemory bm,
InternalWorkingMemory wm,
RightTupleSets srcRightTuples,
LeftTupleSets trgLeftTuples,
LeftTupleSets stagedLeftTuples) {
LeftTupleMemory ltm = bm.getLeftTupleMemory();
RightTupleMemory rtm = bm.getRightTupleMemory();
ContextEntry[] contextEntry = bm.getContext();
BetaConstraints constraints = notNode.getRawConstraints();
boolean iterateFromStart =
notNode.isIndexedUnificationJoin() || rtm.getIndexType().isComparison();
for (RightTuple rightTuple = srcRightTuples.getUpdateFirst(); rightTuple != null; ) {
RightTuple next = rightTuple.getStagedNext();
PropagationContext context = rightTuple.getPropagationContext();
constraints.updateFromFactHandle(contextEntry, wm, rightTuple.getFactHandle());
FastIterator leftIt = notNode.getLeftIterator(ltm);
LeftTuple firstLeftTuple = notNode.getFirstLeftTuple(rightTuple, ltm, context, leftIt);
LeftTuple firstBlocked = rightTuple.getTempBlocked();
// first process non-blocked tuples, as we know only those ones are in the left memory.
for (LeftTuple leftTuple = firstLeftTuple; leftTuple != null; ) {
// preserve next now, in case we remove this leftTuple
LeftTuple temp = (LeftTuple) leftIt.next(leftTuple);
if (leftTuple.getStagedType() == LeftTuple.UPDATE) {
// ignore, as it will get processed via left iteration. Children cannot be processed twice
leftTuple = temp;
continue;
}
// we know that only unblocked LeftTuples are still in the memory
if (constraints.isAllowedCachedRight(contextEntry, leftTuple)) {
leftTuple.setBlocker(rightTuple);
rightTuple.addBlocked(leftTuple);
// this is now blocked so remove from memory
ltm.remove(leftTuple);
LeftTuple childLeftTuple = leftTuple.getFirstChild();
if (childLeftTuple != null) {
childLeftTuple.setPropagationContext(rightTuple.getPropagationContext());
RuleNetworkEvaluator.deleteRightChild(childLeftTuple, trgLeftTuples, stagedLeftTuples);
}
}
leftTuple = temp;
}
if (firstBlocked != null) {
RightTuple rootBlocker = rightTuple.getTempNextRightTuple();
if (rootBlocker == null) {
iterateFromStart = true;
}
FastIterator rightIt = notNode.getRightIterator(rtm);
// iterate all the existing previous blocked LeftTuples
for (LeftTuple leftTuple = firstBlocked; leftTuple != null; ) {
LeftTuple temp = leftTuple.getBlockedNext();
leftTuple.clearBlocker();
if (leftTuple.getStagedType() == LeftTuple.UPDATE) {
// ignore, as it will get processed via left iteration. Children cannot be processed
// twice
// but need to add it back into list first
leftTuple.setBlocker(rightTuple);
rightTuple.addBlocked(leftTuple);
leftTuple = temp;
continue;
}
constraints.updateFromTuple(contextEntry, wm, leftTuple);
if (iterateFromStart) {
rootBlocker = notNode.getFirstRightTuple(leftTuple, rtm, null, rightIt);
}
// we know that older tuples have been checked so continue next
for (RightTuple newBlocker = rootBlocker;
newBlocker != null;
newBlocker = (RightTuple) rightIt.next(newBlocker)) {
// cannot select a RightTuple queued in the delete list
// There may be UPDATE RightTuples too, but that's ok. They've already been re-added to
// the correct bucket, safe to be reprocessed.
if (leftTuple.getStagedType() != LeftTuple.DELETE
&& newBlocker.getStagedType() != LeftTuple.DELETE
&& constraints.isAllowedCachedLeft(contextEntry, newBlocker.getFactHandle())) {
leftTuple.setBlocker(newBlocker);
newBlocker.addBlocked(leftTuple);
break;
}
}
if (leftTuple.getBlocker() == null) {
// was previous blocked and not in memory, so add
ltm.add(leftTuple);
// subclasses like ForallNotNode might override this propagation
trgLeftTuples.addInsert(
sink.createLeftTuple(leftTuple, sink, rightTuple.getPropagationContext(), true));
}
leftTuple = temp;
}
}
rightTuple.clearStaged();
rightTuple = next;
}
constraints.resetFactHandle(contextEntry);
constraints.resetTuple(contextEntry);
}
public void doLeftUpdates(
NotNode notNode,
LeftTupleSink sink,
BetaMemory bm,
InternalWorkingMemory wm,
LeftTupleSets srcLeftTuples,
LeftTupleSets trgLeftTuples,
LeftTupleSets stagedLeftTuples) {
LeftTupleMemory ltm = bm.getLeftTupleMemory();
RightTupleMemory rtm = bm.getRightTupleMemory();
ContextEntry[] contextEntry = bm.getContext();
BetaConstraints constraints = notNode.getRawConstraints();
boolean leftUpdateOptimizationAllowed = notNode.isLeftUpdateOptimizationAllowed();
for (LeftTuple leftTuple = srcLeftTuples.getUpdateFirst(); leftTuple != null; ) {
LeftTuple next = leftTuple.getStagedNext();
FastIterator rightIt = notNode.getRightIterator(rtm);
RightTuple firstRightTuple = notNode.getFirstRightTuple(leftTuple, rtm, null, rightIt);
// If in memory, remove it, because we'll need to add it anyway if it's not blocked, to ensure
// iteration order
RightTuple blocker = leftTuple.getBlocker();
if (blocker == null) {
if (leftTuple.getMemory()
!= null) { // memory can be null, if blocker was deleted in same do loop
ltm.remove(leftTuple);
}
} else {
// check if we changed bucket
if (rtm.isIndexed() && !rightIt.isFullIterator()) {
// if newRightTuple is null, we assume there was a bucket change and that bucket is empty
if (firstRightTuple == null || firstRightTuple.getMemory() != blocker.getMemory()) {
blocker.removeBlocked(leftTuple);
blocker = null;
}
}
}
constraints.updateFromTuple(contextEntry, wm, leftTuple);
if (!leftUpdateOptimizationAllowed && blocker != null) {
blocker.removeBlocked(leftTuple);
blocker = null;
}
// if we where not blocked before (or changed buckets), or the previous blocker no longer
// blocks, then find the next blocker
if (blocker == null
|| !constraints.isAllowedCachedLeft(contextEntry, blocker.getFactHandle())) {
if (blocker != null) {
// remove previous blocker if it exists, as we know it doesn't block any more
blocker.removeBlocked(leftTuple);
}
// find first blocker, because it's a modify, we need to start from the beginning again
for (RightTuple newBlocker = firstRightTuple;
newBlocker != null;
newBlocker = (RightTuple) rightIt.next(newBlocker)) {
if (constraints.isAllowedCachedLeft(contextEntry, newBlocker.getFactHandle())) {
leftTuple.setBlocker(newBlocker);
newBlocker.addBlocked(leftTuple);
break;
}
}
LeftTuple childLeftTuple = leftTuple.getFirstChild();
if (leftTuple.getBlocker() != null) {
// blocked
if (childLeftTuple != null) {
// blocked, with previous children, so must have not been previously blocked, so retract
// no need to remove, as we removed at the start
// to be matched against, as it's now blocked
childLeftTuple.setPropagationContext(
leftTuple
.getBlocker()
.getPropagationContext()); // we have the righttuple, so use it for the pctx
RuleNetworkEvaluator.deleteLeftChild(childLeftTuple, trgLeftTuples, stagedLeftTuples);
} // else: it's blocked now and no children so blocked before, thus do nothing
} else if (childLeftTuple == null) {
// not blocked, with no children, must have been previously blocked so assert
ltm.add(leftTuple); // add to memory so other fact handles can attempt to match
trgLeftTuples.addInsert(
sink.createLeftTuple(
leftTuple,
sink,
leftTuple.getPropagationContext(),
true)); // use leftTuple for the pctx here, as the right one is not available
// this won't cause a problem, as the trigger tuple (to the left) will be more recent
// anwyay
} else {
updateChildLeftTuple(childLeftTuple, stagedLeftTuples, trgLeftTuples);
// not blocked, with children, so wasn't previous blocked and still isn't so modify
ltm.add(leftTuple); // add to memory so other fact handles can attempt to match
childLeftTuple.reAddLeft();
}
}
leftTuple.clearStaged();
leftTuple = next;
}
constraints.resetTuple(contextEntry);
}
private void doRiaNode2(
InternalWorkingMemory wm,
LeftTupleSets srcTuples,
RightInputAdapterNode riaNode,
LinkedList<StackEntry> stack) {
ObjectSink[] sinks = riaNode.getSinkPropagator().getSinks();
BetaNode betaNode = (BetaNode) sinks[0];
BetaMemory bm;
Memory nodeMem = wm.getNodeMemory(betaNode);
if (NodeTypeEnums.AccumulateNode == betaNode.getType()) {
bm = ((AccumulateMemory) nodeMem).getBetaMemory();
} else {
bm = (BetaMemory) nodeMem;
}
// Build up iteration array for other sinks
BetaNode[] bns = null;
BetaMemory[] bms = null;
int length = sinks.length;
if (length > 1) {
bns = new BetaNode[sinks.length - 1];
bms = new BetaMemory[sinks.length - 1];
for (int i = 1; i < length; i++) {
bns[i - 1] = (BetaNode) sinks[i];
Memory nodeMem2 = wm.getNodeMemory(bns[i - 1]);
if (NodeTypeEnums.AccumulateNode == betaNode.getType()) {
bms[i - 1] = ((AccumulateMemory) nodeMem2).getBetaMemory();
} else {
bms[i - 1] = (BetaMemory) nodeMem2;
}
}
}
length--; // subtract one, as first is not in the array;
for (LeftTuple leftTuple = srcTuples.getInsertFirst(); leftTuple != null; ) {
LeftTuple next = leftTuple.getStagedNext();
PropagationContext pctx = leftTuple.getPropagationContext();
InternalFactHandle handle = riaNode.createFactHandle(leftTuple, pctx, wm);
RightTuple rightTuple = new RightTuple(handle, betaNode);
leftTuple.setObject(rightTuple);
rightTuple.setPropagationContext(pctx);
bm.getStagedRightTuples().addInsert(rightTuple);
if (bns != null) {
// Add peered RightTuples, they are attached to FH - unlink LeftTuples that has a peer ref
for (int i = 0; i < length; i++) {
rightTuple = new RightTuple(handle, bns[i]);
rightTuple.setPropagationContext(pctx);
bms[i].getStagedRightTuples().addInsert(rightTuple);
}
}
leftTuple.clearStaged();
leftTuple = next;
}
for (LeftTuple leftTuple = srcTuples.getDeleteFirst(); leftTuple != null; ) {
LeftTuple next = leftTuple.getStagedNext();
RightTuple rightTuple = (RightTuple) leftTuple.getObject();
RightTupleSets rightTuples = bm.getStagedRightTuples();
switch (rightTuple.getStagedType()) {
case LeftTuple.INSERT:
{
rightTuples.removeInsert(rightTuple);
break;
}
case LeftTuple.UPDATE:
{
rightTuples.removeUpdate(rightTuple);
break;
}
}
rightTuples.addDelete(rightTuple);
if (bns != null) {
// Add peered RightTuples, they are attached to FH - unlink LeftTuples that has a peer ref
for (int i = 0; i < length; i++) {
rightTuple = rightTuple.getHandleNext();
rightTuples = bms[i].getStagedRightTuples();
switch (rightTuple.getStagedType()) {
case LeftTuple.INSERT:
{
rightTuples.removeInsert(rightTuple);
break;
}
case LeftTuple.UPDATE:
{
rightTuples.removeUpdate(rightTuple);
break;
}
}
rightTuples.addDelete(rightTuple);
}
}
leftTuple.clearStaged();
leftTuple = next;
}
for (LeftTuple leftTuple = srcTuples.getUpdateFirst(); leftTuple != null; ) {
LeftTuple next = leftTuple.getStagedNext();
RightTuple rightTuple = (RightTuple) leftTuple.getObject();
RightTupleSets rightTuples = bm.getStagedRightTuples();
switch (rightTuple.getStagedType()) {
case LeftTuple.INSERT:
{
rightTuples.removeInsert(rightTuple);
break;
}
case LeftTuple.UPDATE:
{
rightTuples.removeUpdate(rightTuple);
break;
}
}
rightTuples.addUpdate(rightTuple);
if (bns != null) {
// Add peered RightTuples, they are attached to FH - unlink LeftTuples that has a peer ref
for (int i = 0; i < length; i++) {
rightTuple = rightTuple.getHandleNext();
rightTuples = bms[i].getStagedRightTuples();
switch (rightTuple.getStagedType()) {
case LeftTuple.INSERT:
{
rightTuples.removeInsert(rightTuple);
break;
}
case LeftTuple.UPDATE:
{
rightTuples.removeUpdate(rightTuple);
break;
}
}
rightTuples.addUpdate(rightTuple);
}
}
leftTuple.clearStaged();
leftTuple = next;
}
srcTuples.resetAll();
}
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;
}
}
}
