Examples with MvelCompilerContext org.drools.mvelcompiler.context.MvelCompilerContext used on opensource projects

Example 1 with MvelCompilerContext

use of org.drools.mvelcompiler.context.MvelCompilerContext in project drools by kiegroup.

the class StatementVisitor method compileMVEL.

private TypedExpression compileMVEL(Node n) {
    TypedExpression rhs = new RHSPhase(mvelCompilerContext).invoke(n);
    TypedExpression lhs = new LHSPhase(mvelCompilerContext, ofNullable(rhs)).invoke(n);
    Optional<TypedExpression> postProcessedRHS = new ReProcessRHSPhase(mvelCompilerContext).invoke(rhs, lhs);
    TypedExpression postProcessedLHS = postProcessedRHS.map(ppr -> new LHSPhase(mvelCompilerContext, of(ppr)).invoke(n)).orElse(lhs);
    return postProcessedLHS;
}

Example 2 with MvelCompilerContext

use of org.drools.mvelcompiler.context.MvelCompilerContext in project drools by kiegroup.

the class StatementVisitor method visit.

@Override
public TypedExpression visit(SwitchStmt n, Void arg) {
    TypedExpression typedSelector = new RHSPhase(mvelCompilerContext).invoke(n.getSelector());
    List<TypedExpression> typedEntries = n.getEntries().stream().map(e -> e.accept(this, arg)).collect(Collectors.toList());
    return new SwitchStmtT(typedSelector, typedEntries);
}

Example 3 with MvelCompilerContext

use of org.drools.mvelcompiler.context.MvelCompilerContext in project drools by kiegroup.

the class CompilerTest method test.

default void test(Consumer<MvelCompilerContext> testFunction, String inputExpression, String expectedResult, Consumer<CompiledBlockResult> resultAssert) {
    Set<String> imports = new HashSet<>();
    imports.add("java.util.List");
    imports.add("java.util.ArrayList");
    imports.add("java.util.HashMap");
    imports.add("java.util.Map");
    imports.add("java.math.BigDecimal");
    imports.add("org.drools.Address");
    imports.add(Person.class.getCanonicalName());
    imports.add(Gender.class.getCanonicalName());
    TypeResolver typeResolver = new ClassTypeResolver(imports, this.getClass().getClassLoader());
    MvelCompilerContext mvelCompilerContext = new MvelCompilerContext(typeResolver);
    testFunction.accept(mvelCompilerContext);
    CompiledBlockResult compiled = new MvelCompiler(mvelCompilerContext).compileStatement(inputExpression);
    verifyBodyWithBetterDiff(expectedResult, compiled.resultAsString());
    resultAssert.accept(compiled);
}

Example 4 with MvelCompilerContext

use of org.drools.mvelcompiler.context.MvelCompilerContext in project drools by kiegroup.

the class ConstraintCompilerTest method testExpression.

public void testExpression(Consumer<MvelCompilerContext> testFunction, String inputExpression, String expectedResult, Consumer<CompiledExpressionResult> resultAssert) {
    Set<String> imports = new HashSet<>();
    imports.add("java.util.List");
    imports.add("java.util.ArrayList");
    imports.add("java.util.HashMap");
    imports.add("java.util.Map");
    imports.add("java.math.BigDecimal");
    imports.add("org.drools.Address");
    imports.add(Person.class.getCanonicalName());
    imports.add(Gender.class.getCanonicalName());
    TypeResolver typeResolver = new ClassTypeResolver(imports, this.getClass().getClassLoader());
    MvelCompilerContext mvelCompilerContext = new MvelCompilerContext(typeResolver);
    testFunction.accept(mvelCompilerContext);
    CompiledExpressionResult compiled = new ConstraintCompiler(mvelCompilerContext).compileExpression(inputExpression);
    verifyBodyWithBetterDiff(expectedResult, compiled.resultAsString());
    resultAssert.accept(compiled);
}

Example 5 with MvelCompilerContext

use of org.drools.mvelcompiler.context.MvelCompilerContext in project drools by kiegroup.

the class DrlxParseUtil method createConstraintCompiler.

public static ConstraintCompiler createConstraintCompiler(RuleContext context, Optional<Class<?>> originalPatternType) {
    MvelCompilerContext mvelCompilerContext = new MvelCompilerContext(context.getTypeResolver(), context.getCurrentScopeSuffix());
    List<DeclarationSpec> allDeclarations = new ArrayList<>(context.getAllDeclarations());
    originalPatternType.ifPresent(pt -> {
        allDeclarations.add(new DeclarationSpec(THIS_PLACEHOLDER, pt));
        mvelCompilerContext.setRootPatternPrefix(pt, THIS_PLACEHOLDER);
    });
    for (Map.Entry<String, Method> m : context.getPackageModel().getStaticMethods().entrySet()) {
        mvelCompilerContext.addStaticMethod(m.getKey(), m.getValue());
    }
    for (DeclarationSpec ds : allDeclarations) {
        mvelCompilerContext.addDeclaration(ds.getBindingId(), ds.getDeclarationClass());
    }
    return new ConstraintCompiler(mvelCompilerContext);
}