class Queue:
def __init__(self):
self.queue = LinkedList()
def enqueue(self, obj):
self.queue.add(obj)
def dequeue(self):
return self.queue.poll_first()
def size(self):
return self.queue.size()
def isEmpty(self):
return self.queue.is_empty()
class DeQueue:
def __init__(self):
self.queue = LinkedList()
def enqueue_from_rear(self, obj):
self.queue.add(obj)
def enqueue_from_front(self, obj):
self.queue.add_first(obj)
def dequeue_from_rear(self):
return self.queue.poll_last()
def dequeue_from_front(self):
return self.queue.poll_first()
def size(self):
return self.queue.size()
def is_empty(self):
return self.queue.is_empty()
class CompanyShareWithLinkedList:
def __init__(self):
self.customer_list = LinkedList()
self.company_list = LinkedList()
def add_new_customer(self):
"""
read customer data and maintain in customer linked list
creating new customer data and then add new json data into linked list
Update customer json file
"""
customer_data = FileLoad.json_file_load("Customer.json")
for i in customer_data:
self.customer_list.add(i)
try:
customer_id = input("Enter customer id : ").strip()
customer_name = input("Enter customer name : ").strip().upper()
balance = input(
"Enter balance to add share market account : ").strip()
if not customer_id.isnumeric() or not customer_name.isalpha(
) or not balance.isnumeric():
raise ValueError
except ValueError:
print("You have entered wrong data.")
return
data = {}
new_customer = {
"id": customer_id,
"name": customer_name,
"balance": balance,
"data": data
}
flag = True
for i in range(self.customer_list.size()):
temp = self.customer_list.get_by_index(i)
if temp["id"] == customer_id or str(temp["name"]) == customer_name:
print("Your account already available.")
flag = False
break
if flag:
self.customer_list.add(new_customer)
list = []
size = self.customer_list.size()
for i in range(size):
list.append(self.customer_list.poll_first())
FileLoad.json_file_write("Customer.json", list)
def add_new_company(self):
"""
reading company data from company json file
creating new company json data and then add into company linked list
Update company json file
"""
company_data = FileLoad.json_file_load("Company.json")
for i in company_data:
self.company_list.add(i)
try:
company_name = input("Enter company name : ").strip().upper()
no_of_share = input("Enter number of share : ").strip()
price = input("Enter share per price : ").strip()
balance = input("Enter balance amount : ").strip()
if not company_name.isalpha() or not no_of_share.isnumeric(
) or not price.isnumeric() or not balance.isnumeric():
raise ValueError
except ValueError:
print("You have entered wrong data.")
return
new_company = {
company_name: {
"no_of_share": no_of_share,
"price": price,
"balance": balance
}
}
flag = True
for i in range(self.company_list.size()):
data = self.company_list.get_by_index(i)
if data.get(company_name) == None:
print("Your account already available.")
flag = False
break
if flag:
self.company_list.add(new_company)
list = []
size = self.company_list.size()
for i in range(size):
list.append(self.company_list.poll_first())
# print(self.company_list.display())
def remove_customer(self):
"""
reading customer data from json file and maintain in customer linked list
take customer id and customer name and then find in customer linked list
update customer json file after deletion
"""
customer_data = FileLoad.json_file_load("Customer.json")
for i in customer_data:
self.customer_list.add(i)
try:
customer_id = input("Enter customer id : ").strip()
customer_name = input("Enter customer name : ").strip().upper()
if not customer_id.isnumeric() or not customer_name.isalpha():
raise ValueError
except ValueError:
print("You have entered wrong data.")
return
for i in range(self.customer_list.size()):
temp = self.customer_list.get_by_index(i)
if temp["id"] == customer_id or str(temp["name"]) == customer_name:
self.customer_list.delete_by_index(i)
break
list = []
size = self.customer_list.size()
for i in range(size):
list.append(self.customer_list.poll_first())
FileLoad.json_file_write("Customer.json", list)
def remove_company(self):
"""
reading company data from json file and maintain in company linked list
take company name and then find in company linked list
update company json file after deletion
:return:
"""
company_data = FileLoad.json_file_load("Company.json")
for i in company_data:
self.company_list.add(i)
try:
company_name = input("Enter company name : ").strip().upper()
if not company_name.isalpha():
raise ValueError
except ValueError:
print("You have entered wrong data.")
return
flag = True
for i in range(self.company_list.size()):
data = self.company_list.get_by_index(i)
if data.get(company_name) == None:
self.company_list.delete_by_index(i)
break
list = []
size = self.company_list.size()
for i in range(size):
list.append(self.company_list.poll_first())
# print(self.company_list.display())
def save(self):
pass