Rikkola commented on code in PR #6584: URL: https://github.com/apache/incubator-kie-drools/pull/6584#discussion_r2773611582
########## drools-core/src/main/java/org/drools/core/phreak/BiLinearRoutingHelper.java: ########## @@ -0,0 +1,102 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.drools.core.phreak; + +import org.drools.core.common.Memory; +import org.drools.core.common.TupleSets; +import org.drools.core.reteoo.BetaMemory; +import org.drools.core.reteoo.PathMemory; +import org.drools.core.reteoo.SegmentMemory; +import org.drools.core.reteoo.TupleImpl; +import org.drools.core.reteoo.builder.BiLinearDetector; + +import java.util.List; + +public final class BiLinearRoutingHelper { + + private BiLinearRoutingHelper() { + } + + /** + * Check if tuples should be routed to BiLinearJoinNode's right memory instead of left memory. + * This happens when the source segment's tip node is a BiLinearJoinNode's second left input. + */ + public static boolean shouldRouteToBiLinearRightMemory(SegmentMemory sourceSegment, SegmentMemory targetSegment) { + if (!BiLinearDetector.isBiLinearEnabled()) { + return false; + } + + SegmentMemory.SegmentPrototype proto = targetSegment.getSegmentPrototype(); + + return proto.hasBiLinearNode() && + sourceSegment.getTipNode().getId() == proto.getBiLinearSecondInputId(); + } + + /** + * Routes tuples to BiLinearJoinNode's right memory (staged right tuples) + * instead of the normal left memory staging. + */ + public static void routeToBiLinearRightMemory(SegmentMemory targetSegment, TupleSets leftTuples) { + SegmentMemory.SegmentPrototype proto = targetSegment.getSegmentPrototype(); + int biLinearIndex = proto.getBiLinearNodeIndex(); + + Memory[] nodeMemories = targetSegment.getNodeMemories(); + BetaMemory bm = (BetaMemory) nodeMemories[biLinearIndex]; + + if (bm.getStagedRightTuples().isEmpty()) { + bm.setNodeDirtyWithoutNotify(); + } + + bm.getStagedRightTuples().addAll(leftTuples); + + targetSegment.notifyRuleLinkSegment(); + + List<PathMemory> pathMems = targetSegment.getPathMemories(); + for (PathMemory pmem : pathMems) { + pmem.getOrCreateRuleAgendaItem(); + pmem.queueRuleAgendaItem(); + } + } + + /** + * Routes a single peer tuple to BiLinearJoinNode's right memory. + * Used when processing peer inserts for segments that need BiLinear right memory routing. + */ + public static void routePeerToBiLinearRightMemory(SegmentMemory targetSegment, TupleImpl peerTuple) { + SegmentMemory.SegmentPrototype proto = targetSegment.getSegmentPrototype(); + int biLinearIndex = proto.getBiLinearNodeIndex(); + + Memory[] nodeMemories = targetSegment.getNodeMemories(); + BetaMemory bm = (BetaMemory) nodeMemories[biLinearIndex]; Review Comment: Not an issue. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
