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FileLoader.cpp
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FileLoader.cpp
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//
// FileLoader.cpp
//
//
// Created by Alex Rao on 6/10/18.
//
#include <iostream>
#include <fstream>
#include "FileLoader.h"
using namespace std;
BST<Product> FileLoader::loadProducts(string path) {
BST<Product> p;
p.loadPrimary(path);
return p;
}
BST<ProductS> FileLoader::loadProductsS(string path) {
BST<ProductS> p;
p.loadSecondary(path);
return p;
}
HashTable<Customer> FileLoader::loadCustomers(string path, Heap& heap, BST<Product>& catalog) {
HashTable<Customer> customers;
ifstream fis(path.c_str());
string line;
if (fis.is_open()) {
while (getline(fis, line)) {
string username = line;
string password;
getline(fis, password);
string first_name;
getline(fis, first_name); //advance to the next line
string last_name;
getline(fis, last_name); //advance to the next line
bool isEmployee = false;
getline(fis, line); //advance to the next line
string address;
getline(fis, address);
string city;
getline(fis, city); //advance to the next line
string zip_string;
unsigned zip;
getline(fis, zip_string); //advance to the next line
zip = atoi(zip_string.c_str());
string email;
getline(fis,email);
Customer* c = new Customer(username, password, first_name, last_name, isEmployee, address, city, zip, email);
customers.insert(*c);
while(not (fis.peek() == '\n')){
Order * o = new Order;
heap.insert(o -> load(fis, catalog));
c->insertOrder(o);
}
getline(fis, line); //skip the emtpy line
}
}
fis.close();
return customers;
}
HashTable<Employee> FileLoader::loadEmployees(string path) {
HashTable<Employee> employees;
ifstream fis(path.c_str());
string line;
if (fis.is_open()) {
while (getline(fis, line)) {
string username = line;
string password;
getline(fis, password);
string first_name;
fis >> first_name;
getline(fis, line); //advance to the next line
string last_name;
fis >> last_name;
getline(fis, line); //advance to the next line
bool isEmployee;
fis >> isEmployee;
getline(fis, line); //advance to the next line
Employee* e = new Employee(username, password, first_name, last_name, isEmployee);
employees.insert(*e);
getline(fis, line); //skip the emtpy line
}
}
fis.close();
return employees;
}
void FileLoader::saveProducts(string path, BST<Product> p){
p.save(path);
}
void FileLoader::saveCustomers(string path, HashTable<Customer> c){
ofstream of;
of.open(path.c_str(),ios_base::out);
List<Customer*> l(c.getAll());
int size = l.getLength();
l.startIterator();
while(not l.offEnd()){
l.getIterator()->write(of);
l.moveIterNext();
}
}
void FileLoader::saveEmployees(string path, HashTable<Employee> e){
ofstream of;
of.open(path.c_str(),ios_base::out);
List<Employee*> l(e.getAll());
int size = l.getLength();
l.startIterator();
while(not l.offEnd()){
l.getIterator()->write(of);
l.moveIterNext();
}
}
void FileLoader::printProgBar(int percent, string message){
string bar;
for(int i = 0; i < 50; i++){
if( i < (percent/2)){
bar.replace(i,1,"=");
}else if( i == (percent/2)){
bar.replace(i,1,"_");
}else{
bar.replace(i,1," ");
}
}
cout<< "\r" "[" << bar << "] ";
cout.width( 3 );
cout<< percent << "% " << message << flush;
}