Examples with DEFAULT_NAMESPACE com.facebook.presto.metadata.BuiltInTypeAndFunctionNamespaceManager.DEFAULT_NAMESPACE used on opensource projects

Example 1 with DEFAULT_NAMESPACE

use of com.facebook.presto.metadata.BuiltInTypeAndFunctionNamespaceManager.DEFAULT_NAMESPACE 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 2 with DEFAULT_NAMESPACE

use of com.facebook.presto.metadata.BuiltInTypeAndFunctionNamespaceManager.DEFAULT_NAMESPACE in project presto by prestodb.

the class SqlInvokedScalarFromAnnotationsParser method createSqlInvokedFunctions.

private static List<SqlInvokedFunction> createSqlInvokedFunctions(Method method, Optional<SqlInvokedScalarFunction> header, Optional<String> description) {
    SqlInvokedScalarFunction functionHeader = header.orElse(method.getAnnotation(SqlInvokedScalarFunction.class));
    String functionDescription = description.orElse(method.isAnnotationPresent(Description.class) ? method.getAnnotation(Description.class).value() : "");
    TypeSignature returnType = parseTypeSignature(method.getAnnotation(SqlType.class).value());
    // Parameter
    checkCondition(!method.isAnnotationPresent(SqlParameter.class) || !method.isAnnotationPresent(SqlParameters.class), FUNCTION_IMPLEMENTATION_ERROR, "Function-defining method [%s] is annotated with both @SqlParameter and @SqlParameters", method);
    List<Parameter> parameters;
    if (method.isAnnotationPresent(SqlParameter.class)) {
        parameters = ImmutableList.of(getParameterFromAnnotation(method.getAnnotation(SqlParameter.class)));
    } else if (method.isAnnotationPresent(SqlParameters.class)) {
        parameters = stream(method.getAnnotation(SqlParameters.class).value()).map(SqlInvokedScalarFromAnnotationsParser::getParameterFromAnnotation).collect(toImmutableList());
    } else {
        parameters = ImmutableList.of();
    }
    // Routine characteristics
    RoutineCharacteristics routineCharacteristics = RoutineCharacteristics.builder().setLanguage(RoutineCharacteristics.Language.SQL).setDeterminism(functionHeader.deterministic() ? DETERMINISTIC : NOT_DETERMINISTIC).setNullCallClause(functionHeader.calledOnNullInput() ? CALLED_ON_NULL_INPUT : RETURNS_NULL_ON_NULL_INPUT).build();
    String body;
    try {
        body = (String) method.invoke(null);
    } catch (ReflectiveOperationException e) {
        throw new PrestoException(FUNCTION_IMPLEMENTATION_ERROR, format("Failed to get function body for method [%s]", method), e);
    }
    return Stream.concat(Stream.of(functionHeader.value()), stream(functionHeader.alias())).map(name -> new SqlInvokedFunction(QualifiedObjectName.valueOf(DEFAULT_NAMESPACE, name), parameters, returnType, functionDescription, routineCharacteristics, body, notVersioned())).collect(toImmutableList());
}