Examples with ContextExpression com.dexels.navajo.expression.api.ContextExpression used on opensource projects

Example 21 with ContextExpression

use of com.dexels.navajo.expression.api.ContextExpression in project navajo by Dexels.

the class ReactiveResolvedParameters method resolveNamed.

// 
private void resolveNamed() {
    named.entrySet().forEach(e -> {
        Optional<String> expectedType = expectedTypes.isPresent() ? Optional.ofNullable(expectedTypes.get().get(e.getKey())) : Optional.empty();
        ContextExpression value = e.getValue();
        if (value == null) {
            throw new NullPointerException("Named Expression with key: " + e.getKey() + " resolved to null");
        }
        resolveParam(e.getKey(), expectedType, value);
    });
    allResolved = true;
}

Example 22 with ContextExpression

use of com.dexels.navajo.expression.api.ContextExpression in project navajo by Dexels.

the class ASTAndNode method interpretToLambda.

@Override
public ContextExpression interpretToLambda(List<String> problems, String expression, Function<String, FunctionClassification> functionClassifier, Function<String, Optional<Node>> mapResolver) {
    ContextExpression expA = jjtGetChild(0).interpretToLambda(problems, expression, functionClassifier, mapResolver);
    ContextExpression expB = jjtGetChild(1).interpretToLambda(problems, expression, functionClassifier, mapResolver);
    Optional<String> expressionA = expA.returnType();
    checkOrAdd("In AND expression the first expression is not a boolean but a " + expressionA.orElse("<unknown>"), problems, expB.returnType(), Property.BOOLEAN_PROPERTY);
    Optional<String> expressionB = expB.returnType();
    checkOrAdd("In AND expression the second expression is not a boolean but a " + expressionB.orElse("<unknown>"), problems, expB.returnType(), Property.BOOLEAN_PROPERTY);
    return new ContextExpression() {

        @Override
        public Operand apply(Navajo doc, Message parentMsg, Message parentParamMsg, Selection parentSel, MappableTreeNode mapNode, TipiLink tipiLink, Access access, Optional<ImmutableMessage> immutableMessage, Optional<ImmutableMessage> paramMessage) {
            Operand a = expA.apply(doc, parentMsg, parentParamMsg, parentSel, mapNode, tipiLink, access, immutableMessage, paramMessage);
            if (a == null) {
                return Operand.ofBoolean(Boolean.FALSE);
            }
            Boolean ba = (Boolean) a.value;
            if (!(ba.booleanValue())) {
                return Operand.ofBoolean(Boolean.FALSE);
            }
            Operand b = expB.apply(doc, parentMsg, parentParamMsg, parentSel, mapNode, tipiLink, access, immutableMessage, paramMessage);
            if (b == null) {
                return Operand.ofBoolean(Boolean.FALSE);
            }
            Boolean value = (Boolean) b.value;
            return Operand.ofBoolean(value != null ? value : Boolean.FALSE);
        }

        @Override
        public boolean isLiteral() {
            return expA.isLiteral() && expB.isLiteral();
        }

        @Override
        public Optional<String> returnType() {
            return Optional.of(Property.BOOLEAN_PROPERTY);
        }

        @Override
        public String expression() {
            return expression;
        }
    };
}

Example 23 with ContextExpression

use of com.dexels.navajo.expression.api.ContextExpression in project navajo by Dexels.

the class ASTFunctionNode method resolveNormalFunction.

private ContextExpression resolveNormalFunction(List<ContextExpression> l, Map<String, ContextExpression> named, List<String> problems, String expression) {
    FunctionInterface typeCheckInstance = getFunction();
    if (typeCheckInstance == null) {
        throw new NullPointerException("Function: " + functionName + " can not be resolved!");
    }
    try {
        List<String> typeProblems = typeCheckInstance.typeCheck(l, expression);
        if (!typeProblems.isEmpty() && RuntimeConfig.STRICT_TYPECHECK.getValue() != null) {
            problems.addAll(typeProblems);
        }
    } catch (Throwable e2) {
        typechecklogger.error("Typechecker itself failed when parsing: " + expression + " function definition: " + typeCheckInstance + " Error: ", e2);
    }
    boolean isImmutable = typeCheckInstance.isPure() && l.stream().allMatch(e -> e.isLiteral());
    ContextExpression dynamic = new ContextExpression() {

        @Override
        public boolean isLiteral() {
            // TODO also check named params
            return isImmutable;
        }

        @Override
        public Operand apply(Navajo doc, Message parentMsg, Message parentParamMsg, Selection parentSel, MappableTreeNode mapNode, TipiLink tipiLink, Access access, Optional<ImmutableMessage> immutableMessage, Optional<ImmutableMessage> paramMessage) {
            FunctionInterface f = getFunction();
            Map<String, Operand> resolvedNamed = named.entrySet().stream().collect(Collectors.toMap(e -> e.getKey(), e -> e.getValue().apply(doc, parentMsg, parentParamMsg, parentSel, mapNode, tipiLink, access, immutableMessage, paramMessage)));
            f.setInMessage(doc);
            f.setNamedParameter(resolvedNamed);
            f.setCurrentMessage(parentMsg);
            f.setAccess(access);
            f.reset();
            l.stream().map(e -> {
                try {
                    Operand evaluated = e.apply(doc, parentMsg, parentParamMsg, parentSel, mapNode, tipiLink, access, immutableMessage, paramMessage);
                    if (evaluated == null) {
                        logger.warn("Problematic expression returned null object. If you really insist, return an Operand.NULL. Evaluating expression: {}", expression);
                    }
                    return evaluated;
                } catch (TMLExpressionException e1) {
                    throw new TMLExpressionException("Error parsing parameters for function: " + functionName, e1);
                }
            }).forEach(e -> f.insertOperand(e));
            return f.evaluateWithTypeCheckingOperand();
        }

        @Override
        public Optional<String> returnType() {
            return typeCheckInstance.getReturnType();
        }

        @Override
        public String expression() {
            return expression;
        }
    };
    if (isImmutable && CacheSubexpression.getCacheSubExpression()) {
        Optional<String> returnType = dynamic.returnType();
        String immutablExpression = dynamic.expression();
        Operand resolved = dynamic.apply();
        return new ContextExpression() {

            @Override
            public Optional<String> returnType() {
                return returnType;
            }

            @Override
            public boolean isLiteral() {
                return true;
            }

            @Override
            public String expression() {
                return immutablExpression;
            }

            @Override
            public Operand apply(Navajo doc, Message parentMsg, Message parentParamMsg, Selection parentSel, MappableTreeNode mapNode, TipiLink tipiLink, Access access, Optional<ImmutableMessage> immutableMessage, Optional<ImmutableMessage> paramMessage) {
                return resolved;
            }
        };
    } else {
        return dynamic;
    }
}

Example 24 with ContextExpression

use of com.dexels.navajo.expression.api.ContextExpression in project navajo by Dexels.

the class TestCompiledExpression method testNestedNamedParams.

@Test
public void testNestedNamedParams() throws Exception {
    FunctionInterface testFunction = new ParameterNamesFunction();
    FunctionDefinition fd = new FunctionDefinition(testFunction.getClass().getName(), "description", "input", "result");
    FunctionFactoryFactory.getInstance().addExplicitFunctionDefinition("ParameterNamesFunction", fd);
    String expression = "ParameterNamesFunction(aap=1+1,noot=2+2)";
    StringReader sr = new StringReader(expression);
    CompiledParser cp = new CompiledParser(sr);
    List<String> problems = new ArrayList<>();
    cp.Expression();
    ContextExpression ss = cp.getJJTree().rootNode().interpretToLambda(problems, sr.toString(), fn -> FunctionClassification.DEFAULT, name -> Optional.empty());
    Assert.assertEquals("aap,noot", ss.apply().value);
}

Example 25 with ContextExpression

use of com.dexels.navajo.expression.api.ContextExpression in project navajo by Dexels.

the class TestTypeCheckCompiledExpressionEvaluator method testUnknown.

@Test
public void testUnknown() {
    // test unknowable type
    ExpressionCache ce = ExpressionCache.getInstance();
    List<String> problems = new ArrayList<>();
    ContextExpression cx = ce.parse(problems, "[bla]", fn -> FunctionClassification.DEFAULT);
    Assert.assertFalse(cx.returnType().isPresent());
}