FindAll Jpa

search.java

/**
   *
   * @param page
   * @param size
   * @param search
   * @param orderBy
   * @param orientation
   * @param includeInactive
   * @return
   */
  public ResponseEntity<Object> findAll(int page, int size, String search,
          String orderBy, String orientation, Boolean includeInactive) {
    String msg;
    try {

      PageRequest pageRequest = PageRequest.of(page, size);

      Page<Paciente> pacientePage;

      pacientePage = pacienteRepository.findAll(new Specification<Paciente>() {

        @Override
        public Predicate toPredicate(Root<Paciente> root, CriteriaQuery<?> cq, CriteriaBuilder cb) {
          List<Predicate> predicates = new ArrayList<>();

          // Buscamos por apellido, nombre o dni
          if (search != null && !search.isEmpty()) {
            predicates.add(cb.or(
                    cb.like(cb
                            .lower(root.get(FIELD_PERSON).get(FIELD_LASTNAME)), "%" + search.toLowerCase() + "%"),
                    cb.like(cb
                            .lower(root.get(FIELD_PERSON).get(FIELD_NAME)), "%" + search.toLowerCase() + "%"),
                    cb.like(cb
                            .lower(root.get(FIELD_PERSON).get(FIELD_IDENTIFICATION)), "%" + search.toLowerCase() + "%"))
            );
          }

          if (includeInactive == null || includeInactive == false) {
            predicates.add(cb.and(cb.equal(root.get(FIELD_STATUS), ACTIVE)));
          }

          // Ordenamos
          if (orderBy != null && !orderBy.isEmpty()) {
            if (orientation != null && !orientation.isEmpty()) {
              cq.orderBy(orientation.equals("asc")
                      ? cb.asc(root.get(FIELD_PERSON).get(orderBy))
                      : cb.desc(root.get(FIELD_PERSON).get(orderBy)));
            }
          } else {
            cq.orderBy(cb.asc(root.get(FIELD_PERSON).get(FIELD_LASTNAME)));
          }
          return cb.and(predicates.toArray(new Predicate[predicates.size()]));
        }

      }, pageRequest);

      List<PacienteDTO> listDTO = PacienteMapper.INSTANCE.toListDTO(pacientePage.getContent());

      Map<String, Object> response = new HashMap<>();

      response.put("pacientes", listDTO);
      response.put("currentPage", pacientePage.getNumber());
      response.put("totalItems", pacientePage.getTotalElements());
      response.put("totalPages", pacientePage.getTotalPages());

      return new ResponseEntity<>(response, HttpStatus.OK);
    } catch (Exception e) {
      msg = String.format("Ocurrio un error al intentar obtener listado de pacientes."
              + " Excepcion: %s",
              e.getLocalizedMessage());
      log.error(msg);
      return new ResponseEntity<>(msg, HttpStatus.INTERNAL_SERVER_ERROR);
    }

  }