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

Example 1 with GenericType

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

the class GenericsUtilTest method shouldFailToIdentifyLambdasWithDifferentArgumentList.

@Test
public void shouldFailToIdentifyLambdasWithDifferentArgumentList() {
    // Given:
    final GenericType typeA = GenericType.of("A");
    final GenericType typeB = GenericType.of("B");
    final GenericType typeC = GenericType.of("C");
    final LambdaType a = LambdaType.of(ImmutableList.of(typeA, typeC), typeB);
    final SqlArgument instance = SqlArgument.of(SqlLambda.of(4));
    // When:
    final Exception e = assertThrows(KsqlException.class, () -> GenericsUtil.reserveGenerics(a, instance));
    // Then:
    assertThat(e.getMessage(), containsString("Cannot infer generics for LAMBDA (A, C) => B from LAMBDA " + "because they do not have the same schema structure."));
}

Example 2 with GenericType

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

the class GenericsUtilTest method shouldResolveArraySchemaWithMapping.

@Test
public void shouldResolveArraySchemaWithMapping() {
    // Given:
    final GenericType a = GenericType.of("A");
    final ParamType array = ArrayType.of(a);
    final ImmutableMap<GenericType, SqlType> mapping = ImmutableMap.of(a, SqlTypes.STRING);
    // When:
    final SqlType resolved = GenericsUtil.applyResolved(array, mapping);
    // Then:
    assertThat(resolved, is(SqlTypes.array(SqlTypes.STRING)));
}

Example 3 with GenericType

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

the class GenericsUtilTest method shouldFailToIdentifyMismatchedGenericsInLambda.

@Test
public void shouldFailToIdentifyMismatchedGenericsInLambda() {
    // Given:
    final GenericType typeA = GenericType.of("A");
    final LambdaType a = LambdaType.of(ImmutableList.of(typeA), typeA);
    final SqlArgument instance = SqlArgument.of(SqlLambdaResolved.of(ImmutableList.of(SqlTypes.DOUBLE), SqlTypes.BOOLEAN));
    // When:
    final Exception e = assertThrows(KsqlException.class, () -> GenericsUtil.reserveGenerics(a, instance));
    // Then:
    assertThat(e.getMessage(), containsString("Found invalid instance of generic schema when mapping LAMBDA (A) => A to LAMBDA (DOUBLE) => BOOLEAN. " + "Cannot map A to both DOUBLE and BOOLEAN"));
}

Example 4 with GenericType

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

the class GenericsUtilTest method shouldIdentifyMapGeneric.

@Test
public void shouldIdentifyMapGeneric() {
    // Given:
    final MapType a = MapType.of(GenericType.of("A"), GenericType.of("B"));
    final SqlArgument instance = SqlArgument.of(SqlTypes.map(SqlTypes.DOUBLE, SqlTypes.BIGINT));
    // When:
    final Map<GenericType, SqlType> mapping = GenericsUtil.reserveGenerics(a, instance);
    // Then:
    assertThat(mapping, hasEntry(a.key(), SqlTypes.DOUBLE));
    assertThat(mapping, hasEntry(a.value(), SqlTypes.BIGINT));
}

Example 5 with GenericType

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

the class GenericsUtilTest method shouldFailResolveSchemaWithIncompleteMapping.

@Test(expected = KsqlException.class)
public void shouldFailResolveSchemaWithIncompleteMapping() {
    // Given:
    final GenericType a = GenericType.of("A");
    final Map<GenericType, SqlType> mapping = ImmutableMap.of();
    // When:
    GenericsUtil.applyResolved(a, mapping);
}