Examples with TupleMemory org.drools.core.reteoo.TupleMemory used on opensource projects

Example 46 with TupleMemory

use of org.drools.core.reteoo.TupleMemory in project drools by kiegroup.

the class PhreakExistsNode method doLeftUpdates.

public void doLeftUpdates(ExistsNode existsNode, LeftTupleSink sink, BetaMemory bm, ReteEvaluator reteEvaluator, TupleSets<LeftTuple> srcLeftTuples, TupleSets<LeftTuple> trgLeftTuples, TupleSets<LeftTuple> stagedLeftTuples) {
    TupleMemory ltm = bm.getLeftTupleMemory();
    TupleMemory rtm = bm.getRightTupleMemory();
    ContextEntry[] contextEntry = bm.getContext();
    BetaConstraints constraints = existsNode.getRawConstraints();
    boolean leftUpdateOptimizationAllowed = existsNode.isLeftUpdateOptimizationAllowed();
    for (LeftTuple leftTuple = srcLeftTuples.getUpdateFirst(); leftTuple != null; ) {
        LeftTuple next = leftTuple.getStagedNext();
        FastIterator rightIt = existsNode.getRightIterator(rtm);
        RightTuple firstRightTuple = existsNode.getFirstRightTuple(leftTuple, rtm, 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()) {
                    // we changed bucket, so blocker no longer blocks
                    blocker.removeBlocked(leftTuple);
                    blocker = null;
                }
            }
        }
        constraints.updateFromTuple(contextEntry, reteEvaluator, 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.getFactHandleForEvaluation())) {
            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.getFactHandleForEvaluation())) {
                    leftTuple.setBlocker(newBlocker);
                    newBlocker.addBlocked(leftTuple);
                    break;
                }
            }
        }
        if (leftTuple.getBlocker() == null) {
            // not blocked
            // add to memory so other fact handles can attempt to match
            ltm.add(leftTuple);
            if (leftTuple.getFirstChild() != null) {
                // no need to update pctx, as no right available, and pctx will exist on a parent LeftTuple anyway
                RuleNetworkEvaluator.unlinkAndDeleteChildLeftTuple(leftTuple.getFirstChild(), trgLeftTuples, stagedLeftTuples);
            }
        // with no previous children. do nothing.
        } else if (leftTuple.getFirstChild() == null) {
            // blocked, with no previous children, insert
            insertChildLeftTuple(sink, trgLeftTuples, leftTuple, leftTuple.getBlocker().getPropagationContext(), true);
        } else {
            // blocked, with previous children, modify
            LeftTuple childLeftTuple = leftTuple.getFirstChild();
            while (childLeftTuple != null) {
                childLeftTuple.setPropagationContext(leftTuple.getBlocker().getPropagationContext());
                updateChildLeftTuple(childLeftTuple, stagedLeftTuples, trgLeftTuples);
                childLeftTuple.reAddRight();
                childLeftTuple = childLeftTuple.getHandleNext();
            }
        }
        leftTuple.clearStaged();
        leftTuple = next;
    }
    constraints.resetTuple(contextEntry);
}

Example 47 with TupleMemory

use of org.drools.core.reteoo.TupleMemory in project drools by kiegroup.

the class PhreakExistsNode method doRightUpdates.

public void doRightUpdates(ExistsNode existsNode, LeftTupleSink sink, BetaMemory bm, ReteEvaluator reteEvaluator, TupleSets<RightTuple> srcRightTuples, TupleSets<LeftTuple> trgLeftTuples, TupleSets<LeftTuple> stagedLeftTuples) {
    TupleMemory ltm = bm.getLeftTupleMemory();
    TupleMemory rtm = bm.getRightTupleMemory();
    ContextEntry[] contextEntry = bm.getContext();
    BetaConstraints constraints = existsNode.getRawConstraints();
    boolean iterateFromStart = existsNode.isIndexedUnificationJoin() || rtm.getIndexType().isComparison();
    for (RightTuple rightTuple = srcRightTuples.getUpdateFirst(); rightTuple != null; ) {
        RightTuple next = rightTuple.getStagedNext();
        if (ltm != null && ltm.size() > 0) {
            FastIterator leftIt = existsNode.getLeftIterator(ltm);
            LeftTuple firstLeftTuple = existsNode.getFirstLeftTuple(rightTuple, ltm, leftIt);
            constraints.updateFromFactHandle(contextEntry, reteEvaluator, rightTuple.getFactHandleForEvaluation());
            // 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);
                    // subclasses like ForallNotNode might override this propagation
                    insertChildLeftTuple(sink, trgLeftTuples, leftTuple, rightTuple.getPropagationContext(), true);
                }
                leftTuple = temp;
            }
        }
        LeftTuple firstBlocked = rightTuple.getTempBlocked();
        if (firstBlocked != null) {
            RightTuple rootBlocker = rightTuple.getTempNextRightTuple();
            if (rootBlocker == null) {
                iterateFromStart = true;
            }
            FastIterator rightIt = existsNode.getRightIterator(rtm);
            // iterate all the existing previous blocked LeftTuples
            for (LeftTuple leftTuple = firstBlocked; leftTuple != null; ) {
                LeftTuple temp = leftTuple.getBlockedNext();
                // must null these as we are re-adding them to the list
                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, reteEvaluator, leftTuple);
                if (iterateFromStart) {
                    rootBlocker = existsNode.getFirstRightTuple(leftTuple, rtm, rightIt);
                }
                // we know that older tuples have been checked so continue next
                for (RightTuple newBlocker = rootBlocker; newBlocker != null; newBlocker = (RightTuple) rightIt.next(newBlocker)) {
                    // 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.getFactHandleForEvaluation())) {
                        leftTuple.setBlocker(newBlocker);
                        newBlocker.addBlocked(leftTuple);
                        break;
                    }
                }
                if (leftTuple.getBlocker() == null) {
                    // was previous blocked and not in memory, so add
                    if (ltm != null) {
                        ltm.add(leftTuple);
                    }
                    LeftTuple childLeftTuple = leftTuple.getFirstChild();
                    if (childLeftTuple != null) {
                        childLeftTuple.setPropagationContext(rightTuple.getPropagationContext());
                        RuleNetworkEvaluator.unlinkAndDeleteChildLeftTuple(childLeftTuple, trgLeftTuples, stagedLeftTuples);
                    }
                }
                leftTuple = temp;
            }
        }
        rightTuple.clearStaged();
        rightTuple = next;
    }
    constraints.resetFactHandle(contextEntry);
}

Example 48 with TupleMemory

use of org.drools.core.reteoo.TupleMemory in project drools by kiegroup.

the class PhreakExistsNode method doRightInserts.

public void doRightInserts(ExistsNode existsNode, LeftTupleSink sink, BetaMemory bm, ReteEvaluator reteEvaluator, TupleSets<RightTuple> srcRightTuples, TupleSets<LeftTuple> trgLeftTuples) {
    TupleMemory ltm = bm.getLeftTupleMemory();
    TupleMemory rtm = bm.getRightTupleMemory();
    ContextEntry[] contextEntry = bm.getContext();
    BetaConstraints constraints = existsNode.getRawConstraints();
    for (RightTuple rightTuple = srcRightTuples.getInsertFirst(); rightTuple != null; ) {
        RightTuple next = rightTuple.getStagedNext();
        rtm.add(rightTuple);
        if (ltm != null && ltm.size() > 0) {
            FastIterator it = existsNode.getLeftIterator(ltm);
            constraints.updateFromFactHandle(contextEntry, reteEvaluator, rightTuple.getFactHandleForEvaluation());
            for (LeftTuple leftTuple = existsNode.getFirstLeftTuple(rightTuple, ltm, it); leftTuple != null; ) {
                // preserve next now, in case we remove this leftTuple
                LeftTuple temp = (LeftTuple) it.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);
                    ltm.remove(leftTuple);
                    insertChildLeftTuple(sink, trgLeftTuples, leftTuple, rightTuple.getPropagationContext(), true);
                }
                leftTuple = temp;
            }
        }
        rightTuple.clearStaged();
        rightTuple = next;
    }
    constraints.resetFactHandle(contextEntry);
}

Example 49 with TupleMemory

use of org.drools.core.reteoo.TupleMemory in project drools by kiegroup.

the class PhreakExistsNode method doLeftInserts.

public void doLeftInserts(ExistsNode existsNode, LeftTupleSink sink, BetaMemory bm, ReteEvaluator reteEvaluator, TupleSets<LeftTuple> srcLeftTuples, TupleSets<LeftTuple> trgLeftTuples) {
    TupleMemory ltm = bm.getLeftTupleMemory();
    TupleMemory rtm = bm.getRightTupleMemory();
    ContextEntry[] contextEntry = bm.getContext();
    BetaConstraints constraints = existsNode.getRawConstraints();
    for (LeftTuple leftTuple = srcLeftTuples.getInsertFirst(); leftTuple != null; ) {
        LeftTuple next = leftTuple.getStagedNext();
        boolean useLeftMemory = RuleNetworkEvaluator.useLeftMemory(existsNode, leftTuple);
        constraints.updateFromTuple(contextEntry, reteEvaluator, leftTuple);
        // This method will also remove rightTuples that are from subnetwork where no leftmemory use used
        RuleNetworkEvaluator.findLeftTupleBlocker(existsNode, rtm, contextEntry, constraints, leftTuple, useLeftMemory);
        if (leftTuple.getBlocker() != null) {
            // tuple is not blocked to propagate
            insertChildLeftTuple(sink, trgLeftTuples, leftTuple, leftTuple.getBlocker().getPropagationContext(), useLeftMemory);
        } else if (useLeftMemory) {
            // LeftTuple is not blocked, so add to memory so other RightTuples can match
            ltm.add(leftTuple);
        }
        leftTuple.clearStaged();
        leftTuple = next;
    }
    constraints.resetTuple(contextEntry);
}

Example 50 with TupleMemory

use of org.drools.core.reteoo.TupleMemory in project drools by kiegroup.

the class AddRemoveRule method deleteRightInputData.

private static void deleteRightInputData(LeftTupleSink node, InternalWorkingMemory wm) {
    if (wm.getNodeMemories().peekNodeMemory(node) != null) {
        BetaNode bn = (BetaNode) node;
        BetaMemory bm;
        if (bn.getType() == NodeTypeEnums.AccumulateNode) {
            bm = ((AccumulateMemory) wm.getNodeMemory(bn)).getBetaMemory();
        } else {
            bm = (BetaMemory) wm.getNodeMemory(bn);
        }
        TupleMemory rtm = bm.getRightTupleMemory();
        FastIterator it = rtm.fullFastIterator();
        for (Tuple rightTuple = BetaNode.getFirstTuple(rtm, it); rightTuple != null; ) {
            Tuple next = (Tuple) it.next(rightTuple);
            rtm.remove(rightTuple);
            rightTuple.unlinkFromRightParent();
            rightTuple = next;
        }
        if (!bm.getStagedRightTuples().isEmpty()) {
            bm.setNodeDirtyWithoutNotify();
        }
        TupleSets<RightTuple> srcRightTuples = bm.getStagedRightTuples().takeAll();
        unlinkRightTuples(srcRightTuples.getInsertFirst());
        unlinkRightTuples(srcRightTuples.getUpdateFirst());
        unlinkRightTuples(srcRightTuples.getDeleteFirst());
        deleteFactsFromRightInput(bn, wm);
    }
}