Examples with ScalarOperator io.trino.spi.function.ScalarOperator used on opensource projects

Example 1 with ScalarOperator

use of io.trino.spi.function.ScalarOperator in project trino by trinodb.

the class ScalarImplementationHeader method fromAnnotatedElement.

public static List<ScalarImplementationHeader> fromAnnotatedElement(AnnotatedElement annotated) {
    ScalarFunction scalarFunction = annotated.getAnnotation(ScalarFunction.class);
    ScalarOperator scalarOperator = annotated.getAnnotation(ScalarOperator.class);
    Optional<String> description = parseDescription(annotated);
    ImmutableList.Builder<ScalarImplementationHeader> builder = ImmutableList.builder();
    if (scalarFunction != null) {
        String baseName = scalarFunction.value().isEmpty() ? camelToSnake(annotatedName(annotated)) : scalarFunction.value();
        builder.add(new ScalarImplementationHeader(baseName, new ScalarHeader(description, scalarFunction.hidden(), scalarFunction.deterministic())));
        for (String alias : scalarFunction.alias()) {
            builder.add(new ScalarImplementationHeader(alias, new ScalarHeader(description, scalarFunction.hidden(), scalarFunction.deterministic())));
        }
    }
    if (scalarOperator != null) {
        builder.add(new ScalarImplementationHeader(scalarOperator.value(), new ScalarHeader(description, true, true)));
    }
    List<ScalarImplementationHeader> result = builder.build();
    checkArgument(!result.isEmpty());
    return result;
}

Example 2 with ScalarOperator

use of io.trino.spi.function.ScalarOperator in project trino by trinodb.

the class HyperLogLogOperators method castToP4Hll.

@ScalarOperator(CAST)
@SqlType(StandardTypes.P4_HYPER_LOG_LOG)
public static Slice castToP4Hll(@SqlType(StandardTypes.HYPER_LOG_LOG) Slice slice) {
    HyperLogLog hll = HyperLogLog.newInstance(slice);
    hll.makeDense();
    return hll.serialize();
}

Example 3 with ScalarOperator

use of io.trino.spi.function.ScalarOperator in project trino by trinodb.

the class JsonOperators method castToInteger.

@ScalarOperator(CAST)
@SqlNullable
@SqlType(INTEGER)
public static Long castToInteger(@SqlType(JSON) Slice json) {
    try (JsonParser parser = createJsonParser(JSON_FACTORY, json)) {
        parser.nextToken();
        Long result = currentTokenAsInteger(parser);
        // check no trailing token
        checkCondition(parser.nextToken() == null, INVALID_CAST_ARGUMENT, "Cannot cast input json to INTEGER");
        return result;
    } catch (TrinoException e) {
        if (e.getErrorCode().equals(NUMERIC_VALUE_OUT_OF_RANGE.toErrorCode())) {
            throw new TrinoException(INVALID_CAST_ARGUMENT, format("Cannot cast '%s' to %s", json.toStringUtf8(), INTEGER), e.getCause());
        }
        throw e;
    } catch (ArithmeticException | IOException | JsonCastException e) {
        throw new TrinoException(INVALID_CAST_ARGUMENT, format("Cannot cast '%s' to %s", json.toStringUtf8(), INTEGER), e);
    }
}

Example 4 with ScalarOperator

use of io.trino.spi.function.ScalarOperator in project trino by trinodb.

the class JsonOperators method castToBigint.

@ScalarOperator(CAST)
@SqlNullable
@SqlType(BIGINT)
public static Long castToBigint(@SqlType(JSON) Slice json) {
    try (JsonParser parser = createJsonParser(JSON_FACTORY, json)) {
        parser.nextToken();
        Long result = currentTokenAsBigint(parser);
        // check no trailing token
        checkCondition(parser.nextToken() == null, INVALID_CAST_ARGUMENT, "Cannot cast input json to BIGINT");
        return result;
    } catch (IOException | JsonCastException e) {
        throw new TrinoException(INVALID_CAST_ARGUMENT, format("Cannot cast '%s' to %s", json.toStringUtf8(), BIGINT), e);
    }
}

Example 5 with ScalarOperator

use of io.trino.spi.function.ScalarOperator in project trino by trinodb.

the class JsonOperators method castToTinyint.

@ScalarOperator(CAST)
@SqlNullable
@SqlType(TINYINT)
public static Long castToTinyint(@SqlType(JSON) Slice json) {
    try (JsonParser parser = createJsonParser(JSON_FACTORY, json)) {
        parser.nextToken();
        Long result = currentTokenAsTinyint(parser);
        // check no trailing token
        checkCondition(parser.nextToken() == null, INVALID_CAST_ARGUMENT, "Cannot cast input json to TINYINT");
        return result;
    } catch (TrinoException e) {
        if (e.getErrorCode().equals(NUMERIC_VALUE_OUT_OF_RANGE.toErrorCode())) {
            throw new TrinoException(INVALID_CAST_ARGUMENT, format("Cannot cast '%s' to %s", json.toStringUtf8(), INTEGER), e.getCause());
        }
        throw e;
    } catch (IllegalArgumentException | IOException | JsonCastException e) {
        throw new TrinoException(INVALID_CAST_ARGUMENT, format("Cannot cast '%s' to %s", json.toStringUtf8(), TINYINT), e);
    }
}