def main():
txs = get_transactions()
tx_manager = TransactionManager(txs)
sup: int = int(input('Enter min support: '))
freq_items = apriori(sup, tx_manager)
print_freq_items(freq_items)
def main():
""" Main entry point for the application """
if validate_args():
# Confirm time with professor
transaction_manager = TransactionManager(LOGGER)
parser = Parser(sys.argv[1], LOGGER)
instruction = parser.get_instruction()
while instruction:
transaction_manager.execute(instruction)
instruction = parser.get_instruction()
import psycopg2
from transaction_manager import TransactionManager
tm = TransactionManager(user="******",
password="******",
host="localhost",
port="5432",
verbose=False)
tm.add_connection("fly_booking", database="fly_booking_db")
tm.add_connection("hotel_booking", database="hotel_booking_db")
tm.add_connection("account", database="account_db")
def decrease_money(conn, money):
account_cursor = conn.cursor()
account_query = "UPDATE account SET amount = amount - %s WHERE client_name = 'Roman Vey';"
account_data = (money, )
account_cursor.execute(account_query, account_data)
def book_hotel(conn):
hotel_cursor = conn.cursor()
hotel_query = "INSERT INTO hotel_booking (client_name, hotel_name, arrival, departure) VALUES (%s, %s, NOW(), NOW());"
hotel_data = ("Roman Vey", "Nice Hotel")
hotel_cursor.execute(hotel_query, hotel_data)
tm.create_transaction("book_hotel", ["hotel_booking", "account"])
tm.add_to_transaction("book_hotel",
"hotel_booking",
book_hotel,
from transaction_manager import TransactionManager
import piecash
GNUCASH_FILE = "example_file.gnucash"
# book = piecash.open_book(GNUCASH_FILE, readonly=True)
# print(book.default_currency)
book = TransactionManager(GNUCASH_FILE)
a1 = book.get_account("Assets")
a2 = book.get_account("Expence")
book.make_transaction(a1, a2, 20, description="Test transaction")
print(a1)
def __init__(self, filename): self._fp = open(filename, 'r') self._tm = TransactionManager() self._run()
from transaction_manager import TransactionManager tx_manager = TransactionManager()
app.secret_key = os.urandom(24)
login_manager = LoginManager()
login_manager.init_app(app)
# Generate a globally unique address for this node
node_identifier = str(uuid4()).replace('-', '')
# Instantiate the Blockchain
blockchain = Blockchain()
# Create dummy users with ids 1 to 5
users = [User(id, node_identifier) for id in range(1, 6)]
# Instantiate the transaction manager
transaction_manager = TransactionManager(users)
@app.route('/mine', methods=['GET'])
def mine():
# We run the proof of work algorithm to get the next proof...
last_block = blockchain.last_block
proof = blockchain.proof_of_work(last_block)
# We must receive a reward for finding the proof.
# The sender is "0" to signify that this node has mined a new coin.
blockchain.new_transaction(
sender="0",
recipient=node_identifier,
amount=1,
)
from paxos_manager import PaxosManager
from transaction_manager import TransactionManager
from util import safe_print, ConnectGraph
if len(sys.argv) < 3:
raise Exception('Wrong arguments. Correct Usage: python server.py <config_file_path> <server_index> <optional_dump_path>')
else:
file = io.open(sys.argv[1])
configJson = json.load(file)
serverI = int(sys.argv[2]) % len(configJson)
localConfig = configJson[serverI]
serverIdList = map(lambda x: x['id'], configJson)
val = serverI
connectGraph = ConnectGraph(configJson)
transactionManager = TransactionManager(localConfig['id'])
paxosManager = PaxosManager(configJson, serverI, transactionManager, connectGraph)
serverSocket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
serverSocket.bind((localConfig['local_ip_addr'], int(localConfig['port'])))
print "Server {0} listening on port {1}".format(str(localConfig['id']), str(localConfig['port']))
if len(sys.argv) == 4:
# load paxosManager from last saved
paxosManager.initializeFromJSON(json.load(open(sys.argv[3])))
if len(transactionManager.getQueue()) > 0: # if there was a transaction before the crash, start the save attempt thread
paxosManager.attempt_save_timeout_refresh()
def listenRequests():
while True:
data, addr = serverSocket.recvfrom(1024)
