public static int getOffset(NetworkNode node) {
LeftTupleSource lt = null;
int offset = 1;
if (NodeTypeEnums.isTerminalNode(node)) {
lt = ((TerminalNode) node).getLeftTupleSource();
offset++;
} else if (node.getType() == NodeTypeEnums.RightInputAdaterNode) {
lt = ((RightInputAdapterNode) node).getLeftTupleSource();
} else {
lt = (LeftTupleSource) node;
}
while (lt.getType() != NodeTypeEnums.LeftInputAdapterNode) {
offset++;
lt = lt.getLeftTupleSource();
}
return offset;
}
private BaseNode[] evalQuery(
String queryName,
DroolsQuery queryObject,
InternalFactHandle handle,
PropagationContext pCtx) {
BaseNode[] tnodes = (BaseNode[]) ruleBase.getReteooBuilder().getTerminalNodes(queryName);
if (this.ruleBase.getConfiguration().isPhreakEnabled()) {
if (tnodes == null) {
throw new RuntimeException("Query '" + queryName + "' does not exist");
}
QueryTerminalNode tnode = (QueryTerminalNode) tnodes[0];
LeftTupleSource lts = tnode.getLeftTupleSource();
while (lts.getType() != NodeTypeEnums.LeftInputAdapterNode) {
lts = lts.getLeftTupleSource();
}
LeftInputAdapterNode lian = (LeftInputAdapterNode) lts;
LiaNodeMemory lmem = (LiaNodeMemory) getNodeMemory((MemoryFactory) lts);
SegmentMemory lsmem = lmem.getSegmentMemory();
if (lsmem == null) {
lsmem = SegmentUtilities.createSegmentMemory(lts, this);
}
LeftInputAdapterNode.doInsertObject(
handle, pCtx, lian, this, lmem, false, queryObject.isOpen());
List<PathMemory> rmems = lmem.getSegmentMemory().getPathMemories();
for (int i = 0, length = rmems.size(); i < length; i++) {
PathMemory rm = rmems.get(i);
RuleNetworkEvaluatorActivation evaluator =
agenda.createRuleNetworkEvaluatorActivation(
Integer.MAX_VALUE, rm, (TerminalNode) rm.getNetworkNode());
evaluator.evaluateNetwork(this, 0, -1);
}
} else {
// no need to call retract, as no leftmemory used.
getEntryPointNode().assertQuery(handle, pCtx, this);
pCtx.evaluateActionQueue(this);
}
return tnodes;
}
public static boolean useLeftMemory(LeftTupleSource tupleSource, LeftTuple leftTuple) {
boolean useLeftMemory = true;
if (!tupleSource.isLeftTupleMemoryEnabled()) {
// This is a hack, to not add closed DroolsQuery objects
Object object = leftTuple.getRootLeftTuple().getLastHandle().getObject();
if (!(object instanceof DroolsQuery) || !((DroolsQuery) object).isOpen()) {
useLeftMemory = false;
}
}
return useLeftMemory;
}
