Examples with MethodResolver cn.taketoday.expression.MethodResolver used on opensource projects

Example 6 with MethodResolver

use of cn.taketoday.expression.MethodResolver in project today-infrastructure by TAKETODAY.

the class SpelReproTests method SPR9495.

@Test
void SPR9495() {
    SpelParserConfiguration configuration = new SpelParserConfiguration(false, false);
    ExpressionParser parser = new SpelExpressionParser(configuration);
    StandardEvaluationContext context = new StandardEvaluationContext();
    Expression spel = parser.parseExpression("#enumType.values()");
    context.setVariable("enumType", ABC.class);
    Object result = spel.getValue(context);
    assertThat(result).isNotNull();
    assertThat(result.getClass().isArray()).isTrue();
    assertThat(Array.get(result, 0)).isEqualTo(ABC.A);
    assertThat(Array.get(result, 1)).isEqualTo(ABC.B);
    assertThat(Array.get(result, 2)).isEqualTo(ABC.C);
    context.addMethodResolver(new MethodResolver() {

        @Override
        public MethodExecutor resolve(EvaluationContext context, Object targetObject, String name, List<TypeDescriptor> argumentTypes) throws AccessException {
            return (context1, target, arguments) -> {
                try {
                    Method method = XYZ.class.getMethod("values");
                    Object value = method.invoke(target, arguments);
                    return new TypedValue(value, new TypeDescriptor(new MethodParameter(method, -1)).narrow(value));
                } catch (Exception ex) {
                    throw new AccessException(ex.getMessage(), ex);
                }
            };
        }
    });
    result = spel.getValue(context);
    assertThat(result).isNotNull();
    assertThat(result.getClass().isArray()).isTrue();
    assertThat(Array.get(result, 0)).isEqualTo(XYZ.X);
    assertThat(Array.get(result, 1)).isEqualTo(XYZ.Y);
    assertThat(Array.get(result, 2)).isEqualTo(XYZ.Z);
}