def createDatabase(database: str, mode: str, encoding: str) -> int:
try:
retorno = 3
if encoding in ["ascii", "iso-8859-1", "utf8"]:
if __buscarLlaveBaseDato(database) is None:
if mode == "avl":
retorno = avl.createDatabase(database)
elif mode == "b":
retorno = b.createDatabase(database)
elif mode == "bplus":
retorno = bPlus.createDatabase(database)
elif mode == "dict":
retorno = dic.createDatabase(database)
elif mode == "isam":
retorno = isam.createDatabase(database)
elif mode == "json":
retorno = json.createDatabase(database)
elif mode == "hash":
retorno = hash.createDatabase(database)
else:
retorno = 3
if retorno == 0:
generalDict.setdefault(database, [mode, encoding, {}, {}])
ser("data/info/datos.bin", generalDict)
return retorno
else:
return 2
else:
return 4
except Exception:
return 1
def __createDatabase(database: str, mode: str, encoding: str) -> int:
try:
retorno = 3
if encoding in ["ascii", "iso-8859-1", "utf8"]:
if __buscarLlaveBaseDato(database) is not None:
if mode == "avl":
retorno = avl.createDatabase(database)
elif mode == "b":
retorno = b.createDatabase(database)
elif mode == "bplus":
retorno = bPlus.createDatabase(database)
elif mode == "dict":
retorno = dic.createDatabase(database)
elif mode == "isam":
retorno = isam.createDatabase(database)
elif mode == "json":
retorno = json.createDatabase(database)
elif mode == "hash":
retorno = hash.createDatabase(database)
else:
retorno = 3
return retorno
else:
return 2
else:
return 4
except Exception:
return 1
def createDatabase(database: str, mode: str, encoding: str):
if verify_string(database):
if exist(database): return 2
if encoding.lower().strip() is "ascii" or encoding.lower().strip() is "iso-8859-1" \
or encoding.lower().strip() is "utf8":
status = -1
if mode.lower().strip() is "avl":
status = avl.createDatabase(database)
elif mode.lower().strip() is "b":
status = b.createDatabase(database)
elif mode.lower().strip() is "bplus":
status = bPlus.createDatabase(database)
elif mode.lower().strip() is "dict":
status = diccionario.createDatabase(database)
elif mode.lower().strip() is "isam":
status = isam.createDatabase(database)
elif mode.lower().strip() is "json":
status = json.createDatabase(database)
elif mode.lower().strip() is "hash":
status = hash.createDatabase(database)
else:
return 3
if status == 0:
save_mode(database, mode, encoding)
return status
else:
return 4
else:
return 1
def createdatabase(db, modo, cod):
if not modo in modos:
return 3
if not cod in encoding:
return 4
if buscar(db) == None:
if modo == "avl":
tmp = avl.createDatabase(db)
elif modo == "b":
tmp = b.createDatabase(db)
elif modo == "bplus":
tmp = bplus.createDatabase(db)
elif modo == "hash":
tmp = hash.createDatabase(db)
elif modo == "isam":
tmp = isam.createDatabase(db)
elif modo == "json":
tmp = json.createDatabase(db)
elif modo == "dict":
tmp = dict.createDatabase(db)
else:
return 2
if tmp == 0:
lista_db.append([db, modo, cod])
return 0
else:
return 1
def chooseMode(mode, database):
if mode == 'avl':
if avl.createDatabase(database) == 0:
avlList.append(database)
return 0
else:
return avl.createDatabase(database)
elif mode == 'b':
if b.createDatabase(database) == 0:
bList.append(database)
return 0
else:
return b.createDatabase(database)
elif mode == 'bplus':
if bplus.createDatabase(database) == 0:
bplusList.append(database)
return 0
else:
return bplus.createDatabase(database)
elif mode == 'dict':
if DM.createDatabase(database) == 0:
dictList.append(database)
return 0
else:
return DM.createDatabase(database)
elif mode == 'isam':
if isam.createDatabase(database) == 0:
isamList.append(database)
return 0
else:
return isam.createDatabase(database)
elif mode == 'json':
if j.createDatabase(database) == 0:
jsonList.append(database)
return 0
else:
return j.createDatabase(database)
elif mode == 'hash':
if Hash.createDatabase(database) == 0:
hashList.append(database)
return 0
else:
return Hash.createDatabase(database)
def createDatabase(database: str, mode: str, encoding: str) -> int:
"""Creates a database
Parameters:\n
database (str): name of the database
Returns:\n
0: successful operation
1: an error ocurred
2: database name occupied
"""
if not _Buscar(database):
if encoding not in ["utf8", "ascii", "iso-8859-1"]:
return 4
if mode == "avl":
val = avl.createDatabase(database)
elif mode == "b":
val = b.createDatabase(database)
elif mode == "bplus":
val = bplus.createDatabase(database)
elif mode == "hash":
val = hash.createDatabase(database)
elif mode == "isam":
val = isam.createDatabase(database)
elif mode == "json":
val = json.createDatabase(database)
elif mode == "dict":
val = dict.createDatabase(database)
else:
return 3
if val == 0:
lista_general.append([database, mode, encoding])
serealizar.commit(lista_general, "data", _main_path)
return val
else:
return 2
def createDatabase(database, mode, encoding):
val = 1
if encoding != "ascii" and encoding != "iso-8859-1" and encoding != "utf8":
val = 4
else:
if mode == "avl":
# Grupo 16
val = avl_mode.createDatabase(database)
elif mode == "b":
# Grupo 17
val = b_mode.createDatabase(database)
elif mode == "bplus":
# Grupo 18
val = bplus_mode.createDatabase(database)
elif mode == "dict":
# Auxiliar
val = dict_mode.createDatabase(database)
elif mode == "isam":
# Grupo 14
val = isam_mode.createDatabase(database)
elif mode == "json":
# Ingeniero
val = json_mode.createDatabase(database)
elif mode == "hash":
# Grupo 15
val = hash_mode.createDatabase(database)
else:
val = 3
if val == 0:
global Bases
try:
# Leemos el archivo binario de los registros de bases de datos
fichero_lectura = open("BD_register", "rb")
Bases = pickle.load(fichero_lectura)
Bases.update({database: {"mode": mode, "encoding": encoding}})
# Actualizamos el archivo binario de los registros de bases de datos
fichero_escritura = open("BD_register", "wb")
pickle.dump(Bases, fichero_escritura)
fichero_escritura.close()
except:
Bases.update({database: {"mode": mode, "encoding": encoding}})
# Actualizamos el archivo binario de los registros de bases de datos
fichero_escritura = open("BD_register", "wb")
pickle.dump(Bases, fichero_escritura)
fichero_escritura.close()
return val
def _createDatabase(database, mode, encoding) -> int:
"""Creates a database
Parameters:\n
database (str): name of the database
mode (str): mode of the database
encoding (str): encoding of the database
Returns:\n
0: successful operation
1: an error ocurred
2: database name occupied
3: non-valid mode
4: non-valid encoding
"""
if encoding not in ["utf8", "ascii", "iso-8859-1"]:
return 4
if mode == "avl":
val = avl.createDatabase(database)
elif mode == "b":
val = b.createDatabase(database)
elif mode == "bplus":
val = bplus.createDatabase(database)
elif mode == "hash":
val = hash.createDatabase(database)
elif mode == "isam":
val = isam.createDatabase(database)
elif mode == "json":
val = json.createDatabase(database)
elif mode == "dict":
val = dict.createDatabase(database)
else:
return 3
return val
def alterDatabaseMode(database: str, mode: str) -> int:
try:
valor = 1
db = __buscarLlaveBaseDato(database)
retorno = 1
if db is not None:
modeOld = db[0]
tablas = showTables(database)
codificacion = db[1]
if mode == "avl":
retorno = avl.createDatabase(database)
elif mode == "b":
retorno = b.createDatabase(database)
elif mode == "bplus":
retorno = bPlus.createDatabase(database)
elif mode == "dict":
retorno = dic.createDatabase(database)
elif mode == "isam":
retorno = isam.createDatabase(database)
elif mode == "json":
retorno = json.createDatabase(database)
elif mode == "hash":
retorno = hash.createDatabase(database)
else:
retorno = 4
if retorno == 0 or retorno == 2:
valor = __insertarDatosTablas(tablas, mode, modeOld, database, codificacion)
retorno = valor
dicc = db[2]
if valor == 0:
dropDatabase(database)
db[0] = mode
db[2] = {}
generalDict[database] = db
ser("data/info/datos.bin", generalDict)
return retorno
else:
return 2
except Exception:
return 1