Esempio n. 1
0
  public void doNode(
      FromNode fromNode,
      FromMemory fm,
      LeftTupleSink sink,
      InternalWorkingMemory wm,
      TupleSets<LeftTuple> srcLeftTuples,
      TupleSets<LeftTuple> trgLeftTuples,
      TupleSets<LeftTuple> stagedLeftTuples) {

    if (srcLeftTuples.getDeleteFirst() != null) {
      doLeftDeletes(fm, srcLeftTuples, trgLeftTuples, stagedLeftTuples);
    }

    if (srcLeftTuples.getUpdateFirst() != null) {
      doLeftUpdates(fromNode, fm, sink, wm, srcLeftTuples, trgLeftTuples, stagedLeftTuples);
    }

    if (srcLeftTuples.getInsertFirst() != null) {
      doLeftInserts(fromNode, fm, sink, wm, srcLeftTuples, trgLeftTuples);
    }

    srcLeftTuples.resetAll();
  }
Esempio n. 2
0
  public void doLeftInserts(
      FromNode fromNode,
      FromMemory fm,
      LeftTupleSink sink,
      InternalWorkingMemory wm,
      TupleSets<LeftTuple> srcLeftTuples,
      TupleSets<LeftTuple> trgLeftTuples) {

    BetaMemory bm = fm.getBetaMemory();
    ContextEntry[] context = bm.getContext();
    BetaConstraints betaConstraints = fromNode.getBetaConstraints();
    AlphaNodeFieldConstraint[] alphaConstraints = fromNode.getAlphaConstraints();
    DataProvider dataProvider = fromNode.getDataProvider();
    Class<?> resultClass = fromNode.getResultClass();

    for (LeftTuple leftTuple = srcLeftTuples.getInsertFirst(); leftTuple != null; ) {
      LeftTuple next = leftTuple.getStagedNext();

      PropagationContext propagationContext = leftTuple.getPropagationContext();

      Map<Object, RightTuple> matches = null;
      boolean useLeftMemory = RuleNetworkEvaluator.useLeftMemory(fromNode, leftTuple);

      if (useLeftMemory) {
        fm.getBetaMemory().getLeftTupleMemory().add(leftTuple);
        matches = new LinkedHashMap<Object, RightTuple>();
        leftTuple.setContextObject(matches);
      }

      betaConstraints.updateFromTuple(context, wm, leftTuple);

      for (final java.util.Iterator<?> it =
              dataProvider.getResults(leftTuple, wm, propagationContext, fm.providerContext);
          it.hasNext(); ) {
        final Object object = it.next();
        if ((object == null) || !resultClass.isAssignableFrom(object.getClass())) {
          continue; // skip anything if it not assignable
        }

        RightTuple rightTuple =
            fromNode.createRightTuple(leftTuple, propagationContext, wm, object);

        checkConstraintsAndPropagate(
            sink,
            leftTuple,
            rightTuple,
            alphaConstraints,
            betaConstraints,
            propagationContext,
            wm,
            fm,
            context,
            useLeftMemory,
            trgLeftTuples,
            null);
        if (useLeftMemory) {
          fromNode.addToCreatedHandlesMap(matches, rightTuple);
        }
      }

      leftTuple.clearStaged();
      leftTuple = next;
    }
    betaConstraints.resetTuple(context);
  }
Esempio n. 3
0
  private void doRiaNode2(
      InternalWorkingMemory wm, TupleSets<LeftTuple> srcTuples, RightInputAdapterNode riaNode) {

    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 RightTupleImpl(handle, betaNode);
      leftTuple.setContextObject(handle);
      rightTuple.setPropagationContext(pctx);

      if (bm.getStagedRightTuples().isEmpty()) {
        bm.setNodeDirtyWithoutNotify();
      }
      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 RightTupleImpl(handle, bns[i]);
          rightTuple.setPropagationContext(pctx);

          if (bms[i].getStagedRightTuples().isEmpty()) {
            bms[i].setNodeDirtyWithoutNotify();
          }
          bms[i].getStagedRightTuples().addInsert(rightTuple);
        }
      }

      leftTuple.clearStaged();
      leftTuple = next;
    }

    for (LeftTuple leftTuple = srcTuples.getDeleteFirst(); leftTuple != null; ) {
      LeftTuple next = leftTuple.getStagedNext();

      InternalFactHandle handle = (InternalFactHandle) leftTuple.getContextObject();
      RightTuple rightTuple = handle.getFirstRightTuple();
      TupleSets<RightTuple> rightTuples = bm.getStagedRightTuples();

      if (rightTuples.isEmpty()) {
        bm.setNodeDirtyWithoutNotify();
      }
      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();
          if (rightTuples.isEmpty()) {
            bms[i].setNodeDirtyWithoutNotify();
          }
          rightTuples.addDelete(rightTuple);
        }
      }

      leftTuple.clearStaged();
      leftTuple = next;
    }

    for (LeftTuple leftTuple = srcTuples.getUpdateFirst(); leftTuple != null; ) {
      LeftTuple next = leftTuple.getStagedNext();

      InternalFactHandle handle = (InternalFactHandle) leftTuple.getContextObject();
      RightTuple rightTuple = handle.getFirstRightTuple();
      TupleSets<RightTuple> rightTuples = bm.getStagedRightTuples();

      if (rightTuples.isEmpty()) {
        bm.setNodeDirtyWithoutNotify();
      }
      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();

          if (rightTuples.isEmpty()) {
            bms[i].setNodeDirtyWithoutNotify();
          }
          rightTuples.addUpdate(rightTuple);
        }
      }

      leftTuple.clearStaged();
      leftTuple = next;
    }

    srcTuples.resetAll();
  }