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Santiago Martin Vaiga Cousillas
TProg
Commits
c2ac265a
Commit
c2ac265a
authored
2 years ago
by
Agustin Emanuel De Leon Perdomo
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src/logica/ManejadorUsuario.java
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c5dd42d6
package
logica
;
import
java.util.Collection
;
import
java.util.HashMap
;
import
java.util.Map
;
/**
* Clase que conserva la colección global de los usuarios del sistema.
* Los usuarios se identifican por su cédula de identidad.
* Se implementa en base al patrón Singleton.
* @author TProg2017
*
*/
public
class
ManejadorUsuario
{
private
Map
<
String
,
Usuario
>
usuariosCI
;
private
static
ManejadorUsuario
instancia
=
null
;
private
ManejadorUsuario
()
{
usuariosCI
=
new
HashMap
<
String
,
Usuario
>();
}
public
static
ManejadorUsuario
getinstance
()
{
if
(
instancia
==
null
)
instancia
=
new
ManejadorUsuario
();
return
instancia
;
}
public
void
addUsuario
(
Usuario
usu
)
{
String
ci
=
usu
.
getCedulaIdentidad
();
usuariosCI
.
put
(
ci
,
usu
);
}
public
Usuario
obtenerUsuario
(
String
ci
)
{
return
((
Usuario
)
usuariosCI
.
get
(
ci
));
}
public
Usuario
[]
getUsuarios
()
{
if
(
usuariosCI
.
isEmpty
())
return
null
;
else
{
Collection
<
Usuario
>
usrs
=
usuariosCI
.
values
();
Object
[]
o
=
usrs
.
toArray
();
Usuario
[]
usuarios
=
new
Usuario
[
o
.
length
];
for
(
int
i
=
0
;
i
<
o
.
length
;
i
++)
{
usuarios
[
i
]
=
(
Usuario
)
o
[
i
];
}
return
usuarios
;
}
}
}
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