Examples with InvalidParametersEvent org.kie.dmn.feel.runtime.events.InvalidParametersEvent used on opensource projects

Example 1 with InvalidParametersEvent

use of org.kie.dmn.feel.runtime.events.InvalidParametersEvent in project drools by kiegroup.

the class BaseFEELFunction method invokeReflectively.

@Override
public Object invokeReflectively(EvaluationContext ctx, Object[] params) {
    // use reflection to call the appropriate invoke method
    try {
        boolean isNamedParams = params.length > 0 && params[0] instanceof NamedParameter;
        if (!isCustomFunction()) {
            List<String> available = null;
            if (isNamedParams) {
                available = Stream.of(params).map(p -> ((NamedParameter) p).getName()).collect(Collectors.toList());
            }
            CandidateMethod cm = getCandidateMethod(ctx, params, isNamedParams, available);
            if (cm != null) {
                Object result = cm.apply.invoke(this, cm.actualParams);
                if (result instanceof Either) {
                    @SuppressWarnings("unchecked") Either<FEELEvent, Object> either = (Either<FEELEvent, Object>) result;
                    Object eitherResult = either.cata((left) -> {
                        ctx.notifyEvt(() -> {
                            if (left instanceof InvalidParametersEvent) {
                                InvalidParametersEvent invalidParametersEvent = (InvalidParametersEvent) left;
                                invalidParametersEvent.setNodeName(getName());
                                invalidParametersEvent.setActualParameters(Stream.of(cm.apply.getParameters()).map(p -> p.getAnnotation(ParameterName.class).value()).collect(Collectors.toList()), Arrays.asList(cm.actualParams));
                            }
                            return left;
                        });
                        return null;
                    }, Function.identity());
                    return eitherResult;
                }
                return result;
            } else {
                String ps = getClass().toString();
                logger.error("Unable to find function '" + getName() + "( " + ps.substring(1, ps.length() - 1) + " )'");
                ctx.notifyEvt(() -> {
                    return new FEELEventBase(Severity.ERROR, "Unable to find function '" + getName() + "( " + ps.substring(1, ps.length() - 1) + " )'", null);
                });
            }
        } else {
            if (isNamedParams) {
                params = rearrangeParameters(params, this.getParameterNames().get(0));
            }
            Object result = invoke(ctx, params);
            if (result instanceof Either) {
                @SuppressWarnings("unchecked") Either<FEELEvent, Object> either = (Either<FEELEvent, Object>) result;
                final Object[] usedParams = params;
                Object eitherResult = either.cata((left) -> {
                    ctx.notifyEvt(() -> {
                        if (left instanceof InvalidParametersEvent) {
                            InvalidParametersEvent invalidParametersEvent = (InvalidParametersEvent) left;
                            invalidParametersEvent.setNodeName(getName());
                            invalidParametersEvent.setActualParameters(IntStream.of(0, usedParams.length).mapToObj(i -> "arg" + i).collect(Collectors.toList()), Arrays.asList(usedParams));
                        }
                        return left;
                    });
                    return null;
                }, Function.identity());
                return normalizeResult(eitherResult);
            }
            return normalizeResult(result);
        }
    } catch (Exception e) {
        logger.error("Error trying to call function " + getName() + ".", e);
        ctx.notifyEvt(() -> {
            return new FEELEventBase(Severity.ERROR, "Error trying to call function " + getName() + ".", e);
        });
    }
    return null;
}

Example 2 with InvalidParametersEvent

use of org.kie.dmn.feel.runtime.events.InvalidParametersEvent in project drools by kiegroup.

the class FlattenFunction method invoke.

public FEELFnResult<List> invoke(@ParameterName("list") Object list) {
    if (list == null) {
        return FEELFnResult.ofError(new InvalidParametersEvent(Severity.ERROR, "list", "cannot be null"));
    }
    // spec requires us to return a new list
    final List<Object> result = new ArrayList<>();
    flattenList(list, result);
    return FEELFnResult.ofResult(result);
}

Example 3 with InvalidParametersEvent

use of org.kie.dmn.feel.runtime.events.InvalidParametersEvent in project drools by kiegroup.

the class TimeFunction method invoke.

public FEELFnResult<TemporalAccessor> invoke(@ParameterName("hour") Number hour, @ParameterName("minute") Number minute, @ParameterName("second") Number seconds, @ParameterName("offset") Duration offset) {
    if (hour == null) {
        return FEELFnResult.ofError(new InvalidParametersEvent(Severity.ERROR, "hour", "cannot be null"));
    }
    if (minute == null) {
        return FEELFnResult.ofError(new InvalidParametersEvent(Severity.ERROR, "minute", "cannot be null"));
    }
    if (seconds == null) {
        return FEELFnResult.ofError(new InvalidParametersEvent(Severity.ERROR, "seconds", "cannot be null"));
    }
    try {
        int nanosecs = 0;
        if (seconds instanceof BigDecimal) {
            BigDecimal secs = (BigDecimal) seconds;
            nanosecs = secs.subtract(secs.setScale(0, BigDecimal.ROUND_DOWN)).multiply(NANO_MULT).intValue();
        }
        if (offset == null) {
            return FEELFnResult.ofResult(LocalTime.of(hour.intValue(), minute.intValue(), seconds.intValue(), nanosecs));
        } else {
            return FEELFnResult.ofResult(OffsetTime.of(hour.intValue(), minute.intValue(), seconds.intValue(), nanosecs, ZoneOffset.ofTotalSeconds((int) offset.getSeconds())));
        }
    } catch (DateTimeException e) {
        return FEELFnResult.ofError(new InvalidParametersEvent(Severity.ERROR, "time-parsing exception", e));
    }
}

Example 4 with InvalidParametersEvent

use of org.kie.dmn.feel.runtime.events.InvalidParametersEvent in project drools by kiegroup.

the class InvokeFunction method invoke.

public FEELFnResult<Object> invoke(@ParameterName("ctx") EvaluationContext ctx, @ParameterName("namespace") String namespace, @ParameterName("model name") String modelName, @ParameterName("decision name") String decisionName, @ParameterName("parameters") Map<String, Object> parameters) {
    DMNRuntime dmnRuntime = ctx.getDMNRuntime();
    if (namespace == null) {
        return FEELFnResult.ofError(new InvalidParametersEvent(FEELEvent.Severity.ERROR, "namespace", "cannot be null"));
    }
    if (modelName == null) {
        return FEELFnResult.ofError(new InvalidParametersEvent(FEELEvent.Severity.ERROR, "model name", "cannot be null"));
    }
    if (decisionName == null) {
        return FEELFnResult.ofError(new InvalidParametersEvent(FEELEvent.Severity.ERROR, "decision name", "cannot be null"));
    }
    if (parameters == null) {
        return FEELFnResult.ofError(new InvalidParametersEvent(FEELEvent.Severity.ERROR, "parameters", "cannot be null"));
    }
    FEELEvent capturedException = null;
    try {
        ctx.enterFrame();
        DMNModel dmnModel = dmnRuntime.getModel(namespace, modelName);
        if (dmnModel == null) {
            return FEELFnResult.ofError(new FEELEventBase(FEELEvent.Severity.ERROR, "Cannot find model '" + modelName + "' in namespace " + namespace, null));
        }
        if (dmnModel.getDecisionByName(decisionName) == null) {
            return FEELFnResult.ofError(new FEELEventBase(FEELEvent.Severity.ERROR, "Cannot find decision '" + decisionName + "' in the model", null));
        }
        DMNContext dmnContext = dmnRuntime.newContext();
        dmnContext.getAll().putAll(parameters);
        DMNResult requiredDecisionResult = dmnRuntime.evaluateByName(dmnModel, dmnContext, decisionName);
        if (requiredDecisionResult.hasErrors()) {
            return FEELFnResult.ofError(new FEELEventBase(FEELEvent.Severity.ERROR, "Errors occurred while invoking the external decision: " + requiredDecisionResult.getMessages(), null));
        }
        return FEELFnResult.ofResult(requiredDecisionResult.getContext().get(decisionName));
    } catch (Exception e) {
        capturedException = new FEELEventBase(FEELEvent.Severity.ERROR, "Error invoking function", new RuntimeException("Error invoking function " + getName() + ".", e));
    } finally {
        ctx.exitFrame();
    }
    return FEELFnResult.ofError(capturedException);
}

Example 5 with InvalidParametersEvent

use of org.kie.dmn.feel.runtime.events.InvalidParametersEvent in project drools by kiegroup.

the class SplitFunction method invoke.

public FEELFnResult<List<String>> invoke(@ParameterName("input") String input, @ParameterName("delimiter") String delimiter, @ParameterName("flags") String flags) {
    if (input == null) {
        return FEELFnResult.ofError(new InvalidParametersEvent(Severity.ERROR, "input", "cannot be null"));
    }
    if (delimiter == null) {
        return FEELFnResult.ofError(new InvalidParametersEvent(Severity.ERROR, "delimiter", "cannot be null"));
    }
    try {
        int f = processFlags(flags);
        Pattern p = Pattern.compile(delimiter, f);
        String[] split = p.split(input);
        return FEELFnResult.ofResult(Arrays.asList(split));
    } catch (PatternSyntaxException e) {
        return FEELFnResult.ofError(new InvalidParametersEvent(Severity.ERROR, "delimiter", "is invalid and can not be compiled", e));
    } catch (IllegalArgumentException t) {
        return FEELFnResult.ofError(new InvalidParametersEvent(Severity.ERROR, "flags", "contains unknown flags", t));
    } catch (Throwable t) {
        return FEELFnResult.ofError(new InvalidParametersEvent(Severity.ERROR, "delimiter", "is invalid and can not be compiled", t));
    }
}