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class ControladorPrestamos { | |
private static final String NOMBRE_ARCHIVO = "prestamos.txt"; | |
private static final String SEPARADOR_CAMPO = ";"; | |
private static final String SEPARADOR_REGISTRO = "\n"; | |
public static void registrar(Prestamo prestamo) { | |
ControladorLibros.marcarComoPrestado(prestamo.getCodigoLibro()); | |
try { | |
BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(NOMBRE_ARCHIVO, true)); | |
bufferedWriter.write(prestamo.getCodigoLibro() + SEPARADOR_CAMPO + prestamo.getNumeroSocio() | |
+ SEPARADOR_CAMPO + prestamo.getFechaFormateada() + SEPARADOR_REGISTRO); | |
bufferedWriter.close(); | |
} catch (IOException e) { | |
System.out.println("Error escribiendo en archivo: " + e.getMessage()); | |
} | |
} | |
public static ArrayList<Prestamo> obtener() { | |
ArrayList<Prestamo> prestamos = new ArrayList<>(); | |
FileReader fileReader = null; | |
BufferedReader bufferedReader = null; | |
try { | |
fileReader = new FileReader(NOMBRE_ARCHIVO); | |
bufferedReader = new BufferedReader(fileReader); | |
String linea; | |
while ((linea = bufferedReader.readLine()) != null) { | |
String[] prestamoComoArreglo = linea.split(SEPARADOR_CAMPO); | |
prestamos.add(new Prestamo(prestamoComoArreglo[0], prestamoComoArreglo[1], | |
LocalDateTime.parse(prestamoComoArreglo[2], | |
new DateTimeFormatterBuilder().parseCaseInsensitive() | |
.append(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")).toFormatter()))); | |
} | |
} catch (IOException e) { | |
System.out.println("Excepción leyendo archivo: " + e.getMessage()); | |
} finally { | |
try { | |
if (fileReader != null) { | |
fileReader.close(); | |
} | |
if (bufferedReader != null) { | |
bufferedReader.close(); | |
} | |
} catch (IOException e) { | |
System.out.println("Excepción cerrando: " + e.getMessage()); | |
} | |
} | |
return prestamos; | |
} | |
public static int cantidadLibrosPrestados(String numeroSocio, ArrayList<Prestamo> prestamos) { | |
int cantidad = 0; | |
for (int x = 0; x < prestamos.size(); x++) { | |
Prestamo prestamo = prestamos.get(x); | |
if (prestamo.getNumeroSocio().equals(numeroSocio)) { | |
cantidad++; | |
} | |
} | |
return cantidad; | |
} | |
public static void imprimirPrestamos(ArrayList<Prestamo> prestamos) { | |
System.out | |
.println("+-----+------------------------------+------------------------------+--------------------+"); | |
System.out.printf("|%-5s|%-30s|%-30s|%-20s|\n", "No", "Codigo libro", "No. Socio", "Fecha"); | |
System.out | |
.println("+-----+------------------------------+------------------------------+--------------------+"); | |
for (int x = 0; x < prestamos.size(); x++) { | |
Prestamo prestamo = prestamos.get(x); | |
System.out.printf("|%-5d|%-30s|%-30s|%-20s|\n", x, prestamo.getCodigoLibro(), prestamo.getNumeroSocio(), | |
prestamo.getFechaFormateada()); | |
System.out.println( | |
"+-----+------------------------------+------------------------------+--------------------+"); | |
} | |
} | |
public static void solicitarDatosYCrearPrestamo() { | |
Libro libro = ControladorLibros.imprimirLibrosYPedirSeleccion(); | |
Socio socio = ControladorSocios.imprimirSociosYPedirSeleccion(); | |
ControladorPrestamos.registrar(new Prestamo(libro.getCodigo(), socio.getNumero(), LocalDateTime.now())); | |
System.out.println("Prestamo registrado correctamente"); | |
} | |
} |
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