Examples with InternalReadAccessor org.drools.core.spi.InternalReadAccessor used on opensource projects

Example 6 with InternalReadAccessor

use of org.drools.core.spi.InternalReadAccessor in project drools by kiegroup.

the class ClassFieldAccessorStore method merge.

public void merge(ClassFieldAccessorStore other) {
    for (Entry<AccessorKey, BaseLookupEntry> entry : other.lookup.entrySet()) {
        switch(entry.getValue().getAccessorType()) {
            case FieldAccessor:
                {
                    FieldLookupEntry lookupEntry = (FieldLookupEntry) this.lookup.computeIfAbsent(entry.getKey(), e -> entry.getValue());
                    // wire up ClassFieldReaders
                    if (lookupEntry.getClassFieldReader() != null) {
                        InternalReadAccessor reader = ((FieldLookupEntry) entry.getValue()).getClassFieldReader();
                        BaseClassFieldReader accessor = wire(reader);
                        if (other.cache != null && reader instanceof ClassFieldReader) {
                            other.cache.setReadAcessor((ClassFieldReader) reader, accessor);
                        }
                    }
                    if (lookupEntry.getClassFieldWriter() != null) {
                        ClassFieldWriter writer = ((FieldLookupEntry) entry.getValue()).getClassFieldWriter();
                        BaseClassFieldWriter accessor = wire(writer);
                        if (other.cache != null) {
                            other.cache.setWriteAcessor(writer, accessor);
                        }
                    }
                    break;
                }
            case ClassObjectType:
                {
                    ClassObjectTypeLookupEntry lookupEntry = (ClassObjectTypeLookupEntry) this.lookup.computeIfAbsent(entry.getKey(), e -> {
                        ClassObjectType oldObjectType = ((ClassObjectTypeLookupEntry) entry.getValue()).getClassObjectType();
                        ClassObjectType newObjectType = cache.getClassObjectType(oldObjectType, true);
                        oldObjectType.setClassType(newObjectType.getClassType());
                        return new ClassObjectTypeLookupEntry(newObjectType);
                    });
                }
        }
    }
}

Example 7 with InternalReadAccessor

use of org.drools.core.spi.InternalReadAccessor 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 8 with InternalReadAccessor

use of org.drools.core.spi.InternalReadAccessor in project drools by kiegroup.

the class ReteTesterHelper method getBoundVariableConstraint.

public BetaNodeFieldConstraint getBoundVariableConstraint(final Class clazz, final String fieldName, final Declaration declaration, final String evaluatorString) {
    final InternalReadAccessor extractor = store.getReader(clazz, fieldName);
    String expression = fieldName + " " + evaluatorString + " " + declaration.getIdentifier();
    return new MvelConstraintTestUtil(expression, declaration, extractor);
}

Example 9 with InternalReadAccessor

use of org.drools.core.spi.InternalReadAccessor in project drools by kiegroup.

the class JavaConsequenceBuilderPRAlwaysTest method setupTest.

private void setupTest(String consequence, Map<String, Object> namedConsequences) {
    InternalKnowledgePackage pkg = new KnowledgePackageImpl("org.drools");
    pkg.addImport(new ImportDeclaration("org.drools.compiler.Cheese"));
    KnowledgeBuilderConfigurationImpl conf = new KnowledgeBuilderConfigurationImpl();
    // Although it should be the default, for completeness we explicit this is the test cases how RHS should be rewritten as:
    conf.setOption(PropertySpecificOption.ALWAYS);
    KnowledgeBuilderImpl kBuilder = new KnowledgeBuilderImpl(pkg, conf);
    ruleDescr = new RuleDescr("test consequence builder");
    ruleDescr.setConsequence(consequence);
    for (Entry<String, Object> entry : namedConsequences.entrySet()) {
        ruleDescr.addNamedConsequences(entry.getKey(), entry.getValue());
    }
    RuleImpl rule = ruleDescr.toRule();
    PackageRegistry pkgRegistry = kBuilder.getPackageRegistry(pkg.getName());
    DialectCompiletimeRegistry reg = kBuilder.getPackageRegistry(pkg.getName()).getDialectCompiletimeRegistry();
    context = new RuleBuildContext(kBuilder, ruleDescr, reg, pkg, reg.getDialect(pkgRegistry.getDialect()));
    rule.addPattern(new Pattern(0, new ClassObjectType(Cheese.class), "$cheese"));
    Pattern p = new Pattern(1, new ClassObjectType(Person.class), "$persone");
    Declaration declr = p.addDeclaration("age");
    final InternalReadAccessor extractor = PatternBuilder.getFieldReadAccessor(context, new BindingDescr("age", "age"), p, "age", declr, true);
    rule.addPattern(p);
    context.getDeclarationResolver().pushOnBuildStack(rule.getLhs());
    context.getDialect().getConsequenceBuilder().build(context, RuleImpl.DEFAULT_CONSEQUENCE_NAME);
    for (String name : namedConsequences.keySet()) {
        context.getDialect().getConsequenceBuilder().build(context, name);
    }
    context.getDialect().addRule(context);
    pkgRegistry.getPackage().addRule(context.getRule());
    kBuilder.compileAll();
    kBuilder.reloadAll();
}

Example 10 with InternalReadAccessor

use of org.drools.core.spi.InternalReadAccessor in project drools by kiegroup.

the class JavaConsequenceBuilderTest method setupTest.

private void setupTest(String consequence, Map<String, Object> namedConsequences) {
    InternalKnowledgePackage pkg = new KnowledgePackageImpl("org.drools");
    pkg.addImport(new ImportDeclaration("org.drools.compiler.Cheese"));
    KnowledgeBuilderConfigurationImpl conf = new KnowledgeBuilderConfigurationImpl();
    // this test was originally intended with PropertyReactive.ALLOWED:
    conf.setOption(PropertySpecificOption.ALLOWED);
    KnowledgeBuilderImpl kBuilder = new KnowledgeBuilderImpl(pkg, conf);
    ruleDescr = new RuleDescr("test consequence builder");
    ruleDescr.setConsequence(consequence);
    for (Entry<String, Object> entry : namedConsequences.entrySet()) {
        ruleDescr.addNamedConsequences(entry.getKey(), entry.getValue());
    }
    RuleImpl rule = ruleDescr.toRule();
    PackageRegistry pkgRegistry = kBuilder.getPackageRegistry(pkg.getName());
    DialectCompiletimeRegistry reg = kBuilder.getPackageRegistry(pkg.getName()).getDialectCompiletimeRegistry();
    context = new RuleBuildContext(kBuilder, ruleDescr, reg, pkg, reg.getDialect(pkgRegistry.getDialect()));
    rule.addPattern(new Pattern(0, new ClassObjectType(Cheese.class), "$cheese"));
    Pattern p = new Pattern(1, new ClassObjectType(Person.class), "$persone");
    Declaration declr = p.addDeclaration("age");
    final InternalReadAccessor extractor = PatternBuilder.getFieldReadAccessor(context, new BindingDescr("age", "age"), p, "age", declr, true);
    rule.addPattern(p);
    context.getDeclarationResolver().pushOnBuildStack(rule.getLhs());
    context.getDialect().getConsequenceBuilder().build(context, RuleImpl.DEFAULT_CONSEQUENCE_NAME);
    for (String name : namedConsequences.keySet()) {
        context.getDialect().getConsequenceBuilder().build(context, name);
    }
    context.getDialect().addRule(context);
    pkgRegistry.getPackage().addRule(context.getRule());
    kBuilder.compileAll();
    kBuilder.reloadAll();
}