package com.roshka.utils; import java.io.IOException; import java.text.ParseException; import java.text.SimpleDateFormat; import java.time.LocalDate; import java.time.Period; import java.time.format.DateTimeFormatter; import java.util.Date; import java.util.concurrent.TimeUnit; import com.roshka.modelo.DBFile; import org.springframework.util.StringUtils; import org.springframework.web.multipart.MultipartFile; public class Helper { /** * Se espera fecha en el formato yyyy-MM-dd * @param fecha * @return retorna fecha correcta o nulo si no es posible convertir */ public static Date convertirFecha(String fecha) { try { if(fecha == null || fecha.trim().equals("")) return null; return new SimpleDateFormat("yyyy-MM-dd").parse(fecha); } catch (ParseException e) { // TODO Auto-generated catch block System.err.println("Error al parsear"); e.printStackTrace(); return null; } } /** * Diferencia en meses entre 2 fechas. * @param date1 La fecha inicial. No puede ser nulo * @param date2 La fecha final. Si es nulo, se asume a la fecha de hoy * @return */ public static final long getMonthsDifference(Date date1, Date date2) { if(date2==null) date2 = new Date(); long diffInMillies = Math.abs(date2.getTime() - date1.getTime()); long diff = TimeUnit.DAYS.convert(diffInMillies, TimeUnit.MILLISECONDS); return Math.round(diff/30.d) ; } public static LocalDate convertToLocalDateViaSqlDate(Date dateToConvert) { return new java.sql.Date(dateToConvert.getTime()).toLocalDate(); } public static int calculateAge(LocalDate birthDate, LocalDate currentDate) { if ((birthDate != null) && (currentDate != null)) { return Period.between(birthDate, currentDate).getYears(); } else { return 0; } } public static int calculateAge(Date birthDate) { LocalDate currentDate = LocalDate.now(); return calculateAge(convertToLocalDateViaSqlDate(birthDate),currentDate); } public static String formatDate(LocalDate fecha, String format){ if(fecha == null || format == null) return null; return fecha.format(DateTimeFormatter.ofPattern(format)); } public static String formatDate(Date fecha, String format){ return formatDate(convertToLocalDateViaSqlDate(fecha), format); } public static DBFile createFile(MultipartFile file) { // Normalize file name String fileName = StringUtils.cleanPath(file.getOriginalFilename()); try { // Check if the file's name contains invalid characters if(fileName.contains("..")) { throw new Exception("Sorry! Filename contains invalid path sequence " + fileName); } if(file.getSize()==0) throw new Exception("Sorry! File cant be void");; DBFile dbFile = new DBFile(fileName, file.getContentType(), file.getBytes()); return dbFile; } catch (IOException ex) { ex.printStackTrace(); return null; } catch(Exception ex){ ex.printStackTrace(); return null; } } }