Examples with MethodDescriptor java.beans.MethodDescriptor used on opensource projects

Example 36 with MethodDescriptor

use of java.beans.MethodDescriptor in project CzechIdMng by bcvsolutions.

the class DefaultRequestManager method findPotencialParents.

/**
 * Find potential parents. Invokes all method with UUID return type and without
 * input parameters.
 *
 * @param filter
 * @return
 */
private List<RequestPredicate> findPotencialParents(BaseFilter filter) {
    Assert.notNull(filter, "Filter is mandatory!");
    List<MethodDescriptor> descriptors;
    try {
        descriptors = // 
        Lists.newArrayList(Introspector.getBeanInfo(filter.getClass()).getMethodDescriptors()).stream().filter(// 
        methodDescriptor -> UUID.class.equals(methodDescriptor.getMethod().getReturnType())).filter(methodDescriptor -> methodDescriptor.getMethod().getParameterTypes() == null || // 
        methodDescriptor.getMethod().getParameterTypes().length == 0).collect(Collectors.toList());
    } catch (IntrospectionException e) {
        throw new CoreException(e);
    }
    // 
    List<RequestPredicate> results = new ArrayList<>();
    descriptors.stream().forEach(descriptor -> {
        try {
            Object value = descriptor.getMethod().invoke(filter, new Object[] {});
            if (value == null) {
                return;
            }
            RequestFilterPredicate filterPredicate = descriptor.getMethod().getAnnotation(RequestFilterPredicate.class);
            results.add(new RequestPredicate((UUID) value, filterPredicate != null ? filterPredicate.field() : null));
        } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
            throw new CoreException(e);
        }
    });
    return results;
}