Examples with Signature com.facebook.presto.spi.function.Signature used on opensource projects

Example 6 with Signature

use of com.facebook.presto.spi.function.Signature in project presto by prestodb.

the class TestAnnotationEngineForScalars method testMultiScalarParse.

@Test
public void testMultiScalarParse() {
    Signature expectedSignature1 = new Signature(QualifiedObjectName.valueOf(DEFAULT_NAMESPACE, "static_method_scalar_1"), FunctionKind.SCALAR, DOUBLE.getTypeSignature(), ImmutableList.of(DOUBLE.getTypeSignature()));
    Signature expectedSignature2 = new Signature(QualifiedObjectName.valueOf(DEFAULT_NAMESPACE, "static_method_scalar_2"), FunctionKind.SCALAR, BIGINT.getTypeSignature(), ImmutableList.of(BIGINT.getTypeSignature()));
    Signature expectedSignature3 = new Signature(QualifiedObjectName.valueOf(DEFAULT_NAMESPACE, "static_method_scalar_3"), FunctionKind.SCALAR, BIGINT.getTypeSignature(), ImmutableList.of(BIGINT.getTypeSignature()));
    List<SqlScalarFunction> functions = ScalarFromAnnotationsParser.parseFunctionDefinitions(MultiScalarFunction.class);
    assertEquals(functions.size(), 3);
    ParametricScalar scalar1 = (ParametricScalar) functions.stream().filter(signature -> signature.getSignature().equals(expectedSignature1)).collect(toImmutableList()).get(0);
    ParametricScalar scalar2 = (ParametricScalar) functions.stream().filter(signature -> signature.getSignature().equals(expectedSignature2)).collect(toImmutableList()).get(0);
    ParametricScalar scalar3 = (ParametricScalar) functions.stream().filter(signature -> signature.getSignature().equals(expectedSignature3)).collect(toImmutableList()).get(0);
    assertImplementationCount(scalar1, 1, 0, 0);
    assertImplementationCount(scalar2, 1, 0, 0);
    assertEquals(scalar1.getSignature(), expectedSignature1);
    assertTrue(scalar1.isDeterministic());
    assertEquals(scalar1.getVisibility(), PUBLIC);
    assertEquals(scalar1.getDescription(), "Simple scalar with single implementation based on method 1");
    assertEquals(scalar2.getSignature(), expectedSignature2);
    assertFalse(scalar2.isDeterministic());
    assertEquals(scalar2.getVisibility(), HIDDEN);
    assertEquals(scalar2.getDescription(), "Simple scalar with single implementation based on method 2");
    assertEquals(scalar3.getSignature(), expectedSignature3);
    assertFalse(scalar3.isDeterministic());
    assertEquals(scalar3.getVisibility(), EXPERIMENTAL);
    assertEquals(scalar3.getDescription(), "Simple scalar with single implementation based on method 3");
}

Example 7 with Signature

use of com.facebook.presto.spi.function.Signature in project presto by prestodb.

the class TestAnnotationEngineForScalars method testPartiallyFixedTypeParameterParse.

@Test
public void testPartiallyFixedTypeParameterParse() {
    Signature expectedSignature = new Signature(QualifiedObjectName.valueOf(DEFAULT_NAMESPACE, "partially_fixed_type_parameter_scalar_function"), FunctionKind.SCALAR, ImmutableList.of(typeVariable("T1"), typeVariable("T2")), ImmutableList.of(), BIGINT.getTypeSignature(), ImmutableList.of(BIGINT.getTypeSignature()), false);
    List<SqlScalarFunction> functions = ScalarFromAnnotationsParser.parseFunctionDefinition(PartiallyFixedTypeParameterScalarFunction.class);
    assertEquals(functions.size(), 1);
    ParametricScalar scalar = (ParametricScalar) functions.get(0);
    assertImplementationCount(scalar, 0, 0, 1);
    List<ParametricScalarImplementationChoice> parametricScalarImplementationChoices = scalar.getImplementations().getGenericImplementations().get(0).getChoices();
    assertEquals(parametricScalarImplementationChoices.size(), 1);
    List<ImplementationDependency> dependencies = parametricScalarImplementationChoices.get(0).getDependencies();
    assertEquals(dependencies.size(), 1);
    assertEquals(scalar.getSignature(), expectedSignature);
    assertTrue(scalar.isDeterministic());
    assertEquals(scalar.getVisibility(), PUBLIC);
    assertEquals(scalar.getDescription(), "Parametric scalar that uses TypeParameter with partially fixed type");
}

Example 8 with Signature

use of com.facebook.presto.spi.function.Signature in project presto by prestodb.

the class TestAnnotationEngineForAggregates method testSimpleExplicitSpecializedAggregationParse.

// @Test - this is not yet supported
public void testSimpleExplicitSpecializedAggregationParse() {
    Signature expectedSignature = new Signature(QualifiedObjectName.valueOf(DEFAULT_NAMESPACE, "explicit_specialized_aggregate"), FunctionKind.AGGREGATE, ImmutableList.of(typeVariable("T")), ImmutableList.of(), parseTypeSignature("T"), ImmutableList.of(new TypeSignature(ARRAY, TypeSignatureParameter.of(parseTypeSignature("T")))), false);
    ParametricAggregation aggregation = parseFunctionDefinition(ExplicitSpecializedAggregationFunction.class);
    assertEquals(aggregation.getDescription(), "Simple explicit specialized aggregate");
    assertTrue(aggregation.isDeterministic());
    assertEquals(aggregation.getSignature(), expectedSignature);
    ParametricImplementationsGroup<AggregationImplementation> implementations = aggregation.getImplementations();
    assertImplementationCount(implementations, 0, 1, 1);
    AggregationImplementation implementation1 = implementations.getSpecializedImplementations().get(0);
    assertTrue(implementation1.hasSpecializedTypeParameters());
    assertFalse(implementation1.hasSpecializedTypeParameters());
    List<AggregationMetadata.ParameterMetadata.ParameterType> expectedMetadataTypes = ImmutableList.of(AggregationMetadata.ParameterMetadata.ParameterType.STATE, AggregationMetadata.ParameterMetadata.ParameterType.INPUT_CHANNEL);
    assertTrue(implementation1.getInputParameterMetadataTypes().equals(expectedMetadataTypes));
    AggregationImplementation implementation2 = implementations.getSpecializedImplementations().get(1);
    assertTrue(implementation2.hasSpecializedTypeParameters());
    assertFalse(implementation2.hasSpecializedTypeParameters());
    assertTrue(implementation2.getInputParameterMetadataTypes().equals(expectedMetadataTypes));
    InternalAggregationFunction specialized = aggregation.specialize(BoundVariables.builder().setTypeVariable("T", DoubleType.DOUBLE).build(), 1, FUNCTION_AND_TYPE_MANAGER);
    assertEquals(specialized.getFinalType(), DoubleType.DOUBLE);
    assertTrue(specialized.isDecomposable());
    assertEquals(specialized.name(), "implicit_specialized_aggregate");
}

Example 9 with Signature

use of com.facebook.presto.spi.function.Signature in project presto by prestodb.

the class TestAnnotationEngineForAggregates method testNotDecomposableAggregationParse.

@Test
public void testNotDecomposableAggregationParse() {
    Signature expectedSignature = new Signature(QualifiedObjectName.valueOf(DEFAULT_NAMESPACE, "custom_decomposable_aggregate"), FunctionKind.AGGREGATE, DoubleType.DOUBLE.getTypeSignature(), ImmutableList.of(DoubleType.DOUBLE.getTypeSignature()));
    ParametricAggregation aggregation = parseFunctionDefinition(NotDecomposableAggregationFunction.class);
    assertEquals(aggregation.getDescription(), "Aggregate with Decomposable=false");
    assertTrue(aggregation.isDeterministic());
    assertEquals(aggregation.getSignature(), expectedSignature);
    InternalAggregationFunction specialized = aggregation.specialize(BoundVariables.builder().build(), 1, FUNCTION_AND_TYPE_MANAGER);
    assertEquals(specialized.getFinalType(), DoubleType.DOUBLE);
    assertFalse(specialized.isDecomposable());
    assertEquals(specialized.name(), "custom_decomposable_aggregate");
}

Example 10 with Signature

use of com.facebook.presto.spi.function.Signature in project presto by prestodb.

the class TestAnnotationEngineForAggregates method testFixedTypeParameterInjectionAggregateFunctionParse.

@Test
public void testFixedTypeParameterInjectionAggregateFunctionParse() {
    Signature expectedSignature = new Signature(QualifiedObjectName.valueOf(DEFAULT_NAMESPACE, "fixed_type_parameter_injection"), FunctionKind.AGGREGATE, ImmutableList.of(), ImmutableList.of(), DoubleType.DOUBLE.getTypeSignature(), ImmutableList.of(DoubleType.DOUBLE.getTypeSignature()), false);
    ParametricAggregation aggregation = parseFunctionDefinition(FixedTypeParameterInjectionAggregateFunction.class);
    assertEquals(aggregation.getDescription(), "Simple aggregate with fixed parameter type injected");
    assertTrue(aggregation.isDeterministic());
    assertEquals(aggregation.getSignature(), expectedSignature);
    ParametricImplementationsGroup<AggregationImplementation> implementations = aggregation.getImplementations();
    assertImplementationCount(implementations, 1, 0, 0);
    AggregationImplementation implementationDouble = implementations.getExactImplementations().get(expectedSignature);
    assertFalse(implementationDouble.getStateSerializerFactory().isPresent());
    assertEquals(implementationDouble.getDefinitionClass(), FixedTypeParameterInjectionAggregateFunction.class);
    assertDependencyCount(implementationDouble, 1, 1, 1);
    assertFalse(implementationDouble.hasSpecializedTypeParameters());
    List<AggregationMetadata.ParameterMetadata.ParameterType> expectedMetadataTypes = ImmutableList.of(AggregationMetadata.ParameterMetadata.ParameterType.STATE, AggregationMetadata.ParameterMetadata.ParameterType.INPUT_CHANNEL);
    assertTrue(implementationDouble.getInputParameterMetadataTypes().equals(expectedMetadataTypes));
    assertEquals(implementationDouble.getStateClass(), NullableDoubleState.class);
}