Examples with NodeFactory org.drools.core.reteoo.builder.NodeFactory used on opensource projects

Example 1 with NodeFactory

use of org.drools.core.reteoo.builder.NodeFactory in project drools by kiegroup.

the class BetaNodeBuilder method build.

public BetaNode build() {
    NodeFactory nFactory = buildContext.getComponentFactory().getNodeFactoryService();
    EntryPointNode epn = buildContext.getKnowledgeBase().getRete().getEntryPointNodes().values().iterator().next();
    ObjectTypeNode otn = nFactory.buildObjectTypeNode(buildContext.getNextId(), epn, new ClassObjectType(leftType), buildContext);
    LeftInputAdapterNode leftInput = nFactory.buildLeftInputAdapterNode(buildContext.getNextId(), otn, buildContext);
    ObjectSource rightInput = nFactory.buildObjectTypeNode(buildContext.getNextId(), epn, new ClassObjectType(rightType), buildContext);
    ReteTesterHelper reteTesterHelper = new ReteTesterHelper();
    Pattern pattern = new Pattern(0, new ClassObjectType(leftType));
    // BetaNodeFieldConstraint betaConstraint = null;
    BetaConstraints betaConstraints = null;
    if (constraintFieldName != null) {
        ClassFieldAccessorStore store = (ClassFieldAccessorStore) reteTesterHelper.getStore();
        InternalReadAccessor extractor = store.getReader(leftType, leftFieldName);
        Declaration declr = new Declaration(leftVariableName, extractor, pattern);
        betaConstraints = new SingleBetaConstraints(reteTesterHelper.getBoundVariableConstraint(rightType, constraintFieldName, declr, constraintOperator), buildContext.getKnowledgeBase().getConfiguration());
    } else {
        betaConstraints = new EmptyBetaConstraints();
    }
    switch(nodeType) {
        case NodeTypeEnums.JoinNode:
            return new JoinNode(0, leftInput, rightInput, betaConstraints, buildContext);
        case NodeTypeEnums.NotNode:
            return new NotNode(0, leftInput, rightInput, betaConstraints, buildContext);
        case NodeTypeEnums.ExistsNode:
            return new ExistsNode(0, leftInput, rightInput, betaConstraints, buildContext);
    }
    throw new IllegalStateException("Unable to build Node");
}

Example 2 with NodeFactory

use of org.drools.core.reteoo.builder.NodeFactory in project drools by kiegroup.

the class BetaNodeBuilder method build.

public BetaNode build() {
    NodeFactory nFactory = CoreComponentFactory.get().getNodeFactoryService();
    EntryPointNode epn = buildContext.getRuleBase().getRete().getEntryPointNodes().values().iterator().next();
    ObjectTypeNode otn = nFactory.buildObjectTypeNode(buildContext.getNextNodeId(), epn, new ClassObjectType(leftType), buildContext);
    LeftInputAdapterNode leftInput = nFactory.buildLeftInputAdapterNode(buildContext.getNextNodeId(), otn, buildContext, false);
    ObjectSource rightInput = nFactory.buildObjectTypeNode(buildContext.getNextNodeId(), epn, new ClassObjectType(rightType), buildContext);
    ReteTesterHelper reteTesterHelper = new ReteTesterHelper();
    Pattern pattern = new Pattern(0, new ClassObjectType(leftType));
    // BetaNodeFieldConstraint betaConstraint = null;
    BetaConstraints betaConstraints = null;
    if (constraintFieldName != null) {
        ClassFieldAccessorStore store = (ClassFieldAccessorStore) reteTesterHelper.getStore();
        InternalReadAccessor extractor = store.getReader(leftType, leftFieldName);
        Declaration declr = new Declaration(leftVariableName, extractor, pattern);
        betaConstraints = new SingleBetaConstraints(reteTesterHelper.getBoundVariableConstraint(rightType, constraintFieldName, declr, constraintOperator), buildContext.getRuleBase().getConfiguration());
    } else {
        betaConstraints = new EmptyBetaConstraints();
    }
    switch(nodeType) {
        case NodeTypeEnums.JoinNode:
            return new JoinNode(0, leftInput, rightInput, betaConstraints, buildContext);
        case NodeTypeEnums.NotNode:
            return new NotNode(0, leftInput, rightInput, betaConstraints, buildContext);
        case NodeTypeEnums.ExistsNode:
            return new ExistsNode(0, leftInput, rightInput, betaConstraints, buildContext);
    }
    throw new IllegalStateException("Unable to build Node");
}

Example 3 with NodeFactory

use of org.drools.core.reteoo.builder.NodeFactory in project drools by kiegroup.

the class KnowledgeBaseImpl method setupRete.

protected void setupRete() {
    this.rete = new Rete(this);
    this.reteooBuilder = new ReteooBuilder(this);
    NodeFactory nodeFactory = CoreComponentFactory.get().getNodeFactoryService();
    // always add the default entry point
    EntryPointNode epn = nodeFactory.buildEntryPointNode(this.reteooBuilder.getNodeIdsGenerator().getNextId(), RuleBasePartitionId.MAIN_PARTITION, this.getConfiguration().isMultithreadEvaluation(), this.rete, EntryPointId.DEFAULT);
    epn.attach();
    BuildContext context = new BuildContext(this, Collections.emptyList());
    context.setCurrentEntryPoint(epn.getEntryPoint());
    context.setTupleMemoryEnabled(true);
    context.setObjectTypeNodeMemoryEnabled(true);
    context.setPartitionId(RuleBasePartitionId.MAIN_PARTITION);
    ObjectTypeNode otn = nodeFactory.buildObjectTypeNode(this.reteooBuilder.getNodeIdsGenerator().getNextId(), epn, ClassObjectType.InitialFact_ObjectType, context);
    otn.attach(context);
}

Example 4 with NodeFactory

use of org.drools.core.reteoo.builder.NodeFactory in project drools by kiegroup.

the class FactHandleMarshallingTest method createEventFactHandle.

private InternalFactHandle createEventFactHandle(StatefulKnowledgeSessionImpl wm, InternalKnowledgeBase kBase) {
    // EntryPointNode
    Rete rete = kBase.getRete();
    NodeFactory nFacotry = CoreComponentFactory.get().getNodeFactoryService();
    RuleBasePartitionId partionId = RuleBasePartitionId.MAIN_PARTITION;
    EntryPointNode entryPointNode = nFacotry.buildEntryPointNode(1, partionId, false, rete, EntryPointId.DEFAULT);
    WorkingMemoryEntryPoint wmEntryPoint = new NamedEntryPoint(EntryPointId.DEFAULT, entryPointNode, wm);
    EventFactHandle factHandle = new EventFactHandle(1, new Person(), 0, (new Date()).getTime(), 0, wmEntryPoint);
    return factHandle;
}

Example 5 with NodeFactory

use of org.drools.core.reteoo.builder.NodeFactory in project drools by kiegroup.

the class ReteooWorkingMemoryTest method testDifferentEntryPointsOnSameFact.

@Test
public void testDifferentEntryPointsOnSameFact() {
    // JBRULES-2971
    InternalKnowledgeBase kBase = KnowledgeBaseFactory.newKnowledgeBase();
    Rete rete = kBase.getRete();
    NodeFactory nFacotry = new PhreakNodeFactory();
    EntryPointNode epn = nFacotry.buildEntryPointNode(kBase.getReteooBuilder().getNodeIdsGenerator().getNextId(), RuleBasePartitionId.MAIN_PARTITION, kBase.getConfiguration().isMultithreadEvaluation(), rete, new EntryPointId("xxx"));
    kBase.getRete().addObjectSink(epn);
    KieSession ksession = kBase.newKieSession();
    FactHandle f1 = ksession.insert("f1");
    EntryPoint ep = ksession.getEntryPoint("xxx");
    try {
        ep.update(f1, "s1");
        fail("Should throw an exception");
    } catch (IllegalArgumentException e) {
    }
    try {
        ep.retract(f1);
        fail("Should throw an exception");
    } catch (IllegalArgumentException e) {
    }
    ksession.update(f1, "s1");
    assertNotNull(ksession.getObject(f1));
    ksession.retract(f1);
    ksession.retract(f1);
    assertNull(ksession.getObject(f1));
}