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

Example 21 with SqlNullable

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

the class JsonFunctions method jsonArrayContains.

@SqlNullable
@ScalarFunction
@SqlType(StandardTypes.BOOLEAN)
public static Boolean jsonArrayContains(@SqlType(StandardTypes.JSON) Slice json, @SqlType(StandardTypes.BOOLEAN) boolean value) {
    try (JsonParser parser = createJsonParser(JSON_FACTORY, json)) {
        if (parser.nextToken() != START_ARRAY) {
            return null;
        }
        while (true) {
            JsonToken token = parser.nextToken();
            if (token == null) {
                return null;
            }
            if (token == END_ARRAY) {
                return false;
            }
            parser.skipChildren();
            if (((token == VALUE_TRUE) && value) || ((token == VALUE_FALSE) && (!value))) {
                return true;
            }
        }
    } catch (IOException e) {
        return null;
    }
}

Example 22 with SqlNullable

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

the class JsonFunctions method jsonArrayContains.

@SqlNullable
@ScalarFunction
@SqlType(StandardTypes.BOOLEAN)
public static Boolean jsonArrayContains(@SqlType(StandardTypes.JSON) Slice json, @SqlType(StandardTypes.DOUBLE) double value) {
    if (!Doubles.isFinite(value)) {
        return false;
    }
    try (JsonParser parser = createJsonParser(JSON_FACTORY, json)) {
        if (parser.nextToken() != START_ARRAY) {
            return null;
        }
        while (true) {
            JsonToken token = parser.nextToken();
            if (token == null) {
                return null;
            }
            if (token == END_ARRAY) {
                return false;
            }
            parser.skipChildren();
            // noinspection FloatingPointEquality
            if ((token == VALUE_NUMBER_FLOAT) && (parser.getDoubleValue() == value) && (Doubles.isFinite(parser.getDoubleValue()))) {
                return true;
            }
        }
    } catch (IOException e) {
        return null;
    }
}

Example 23 with SqlNullable

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

the class JsonFunctions method jsonArrayContains.

@SqlNullable
@ScalarFunction
@LiteralParameters("x")
@SqlType(StandardTypes.BOOLEAN)
public static Boolean jsonArrayContains(@SqlType(StandardTypes.JSON) Slice json, @SqlType("varchar(x)") Slice value) {
    String valueString = value.toStringUtf8();
    try (JsonParser parser = createJsonParser(JSON_FACTORY, json)) {
        if (parser.nextToken() != START_ARRAY) {
            return null;
        }
        while (true) {
            JsonToken token = parser.nextToken();
            if (token == null) {
                return null;
            }
            if (token == END_ARRAY) {
                return false;
            }
            parser.skipChildren();
            if (token == VALUE_STRING && valueString.equals(parser.getValueAsString())) {
                return true;
            }
        }
    } catch (IOException e) {
        return null;
    }
}

Example 24 with SqlNullable

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

the class JsonFunctions method jsonArrayLength.

@SqlNullable
@ScalarFunction
@SqlType(StandardTypes.BIGINT)
public static Long jsonArrayLength(@SqlType(StandardTypes.JSON) Slice json) {
    try (JsonParser parser = createJsonParser(JSON_FACTORY, json)) {
        if (parser.nextToken() != START_ARRAY) {
            return null;
        }
        long length = 0;
        while (true) {
            JsonToken token = parser.nextToken();
            if (token == null) {
                return null;
            }
            if (token == END_ARRAY) {
                return length;
            }
            parser.skipChildren();
            length++;
        }
    } catch (IOException e) {
        return null;
    }
}

Example 25 with SqlNullable

use of io.trino.spi.function.SqlNullable 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);
    }
}