Examples with ArrayType io.confluent.ksql.function.types.ArrayType used on opensource projects

Example 1 with ArrayType

use of io.confluent.ksql.function.types.ArrayType in project ksql by confluentinc.

the class GenericsUtilTest method shouldIdentifyArrayGeneric.

@Test
public void shouldIdentifyArrayGeneric() {
    // Given:
    final ArrayType a = ArrayType.of(GenericType.of("A"));
    final SqlArgument instance = SqlArgument.of(SqlTypes.array(SqlTypes.STRING));
    // When:
    final Map<GenericType, SqlType> mapping = GenericsUtil.reserveGenerics(a, instance);
    // Then:
    assertThat(mapping, hasEntry(a.element(), SqlTypes.STRING));
}

Example 2 with ArrayType

use of io.confluent.ksql.function.types.ArrayType in project ksql by confluentinc.

the class DescribeFunctionExecutor method getFunctionInfo.

private static FunctionInfo getFunctionInfo(final List<ParameterInfo> argTypes, final ParamType returnTypeSchema, final String description, final boolean variadic) {
    final List<ArgumentInfo> args = new ArrayList<>();
    for (int i = 0; i < argTypes.size(); i++) {
        final ParameterInfo param = argTypes.get(i);
        final boolean isVariadic = variadic && i == (argTypes.size() - 1);
        final String type = isVariadic ? ((ArrayType) param.type()).element().toString() : param.type().toString();
        args.add(new ArgumentInfo(param.name(), type, param.description(), isVariadic));
    }
    return new FunctionInfo(args, returnTypeSchema.toString(), description);
}

Example 3 with ArrayType

use of io.confluent.ksql.function.types.ArrayType in project ksql by confluentinc.

the class UdfIndexTest method shouldMatchNestedGenericMethodWithMultipleGenerics.

@Test
public void shouldMatchNestedGenericMethodWithMultipleGenerics() {
    // Given:
    final ArrayType generic = ArrayType.of(GenericType.of("A"));
    givenFunctions(function(EXPECTED, false, generic, generic));
    // When:
    final KsqlScalarFunction fun = udfIndex.getFunction(ImmutableList.of(SqlArgument.of(SqlArray.of(SqlTypes.INTEGER)), SqlArgument.of(SqlArray.of(SqlTypes.INTEGER))));
    // Then:
    assertThat(fun.name(), equalTo(EXPECTED));
}

Example 4 with ArrayType

use of io.confluent.ksql.function.types.ArrayType in project ksql by confluentinc.

the class UdfIndexTest method shouldNotMatchNestedGenericMethodWithAlreadyReservedTypes.

@Test
public void shouldNotMatchNestedGenericMethodWithAlreadyReservedTypes() {
    // Given:
    final ArrayType generic = ArrayType.of(GenericType.of("A"));
    givenFunctions(function(EXPECTED, false, generic, generic));
    // When:
    final Exception e = assertThrows(KsqlException.class, () -> udfIndex.getFunction(ImmutableList.of(SqlArgument.of(SqlArray.of(SqlTypes.INTEGER)), SqlArgument.of(SqlArray.of(SqlTypes.STRING)))));
    // Then:
    assertThat(e.getMessage(), containsString("Function 'name' does not accept parameters " + "(ARRAY<INTEGER>, ARRAY<STRING>)"));
}

Example 5 with ArrayType

use of io.confluent.ksql.function.types.ArrayType in project ksql by confluentinc.

the class GenericsUtil method applyResolved.

/**
 * Replaces all generics in a schema with concrete schemas defined in {@code resolved}
 *
 * @param schema    the schema which may contain generics
 * @param resolved  the mapping from generics to resolved types
 * @return a schema with the same structure as {@code schema} but with no generics
 *
 * @throws KsqlException if there is a generic in {@code schema} that is not present
 *                       in {@code mapping}
 */
public static SqlType applyResolved(final ParamType schema, final Map<GenericType, SqlType> resolved) {
    if (schema instanceof ArrayType) {
        return SqlTypes.array(applyResolved(((ArrayType) schema).element(), resolved));
    }
    if (schema instanceof MapType) {
        final MapType mapType = (MapType) schema;
        final SqlType keyType = applyResolved(mapType.key(), resolved);
        final SqlType valueType = applyResolved(mapType.value(), resolved);
        return SqlTypes.map(keyType, valueType);
    }
    if (schema instanceof StructType) {
        final Builder struct = SqlTypes.struct();
        ((StructType) schema).getSchema().forEach((fieldName, type) -> struct.field(fieldName, applyResolved(type, resolved)));
        return struct.build();
    }
    if (schema instanceof GenericType) {
        final SqlType instance = resolved.get(schema);
        if (instance == null) {
            throw new KsqlException("Could not find mapping for generic type: " + schema);
        }
        return instance;
    }
    return SchemaConverters.functionToSqlConverter().toSqlType(schema);
}