Clean up legacy code

- Remove FileManager and related file-based persistence logic
- Remove obsolete observer persistence utilities
- Remove unused service APIs and includes
- Delete duplicate DataStore mutex stubs
- Perform general dead-code cleanup
This commit is contained in:
2026-06-14 14:11:03 +05:30
parent 67ac7f6625
commit 404d217504
19 changed files with 13 additions and 802 deletions
+2 -2
View File
@@ -427,5 +427,5 @@ FodyWeavers.xsd
*.msm
*.msp
# CSV Files
*.csv
# DAT Files
*.dat
@@ -181,7 +181,6 @@
<ClInclude Include="utilities\Config.h" />
<ClInclude Include="utilities\Enums.h" />
<ClInclude Include="utilities\FileHelper.h" />
<ClInclude Include="utilities\FileManager.h" />
<ClInclude Include="utilities\InputHelper.h" />
<ClInclude Include="utilities\Map.h" />
<ClInclude Include="utilities\OutputHelper.h" />
@@ -242,9 +242,6 @@
<ClInclude Include="utilities\Config.h">
<Filter>Header Files\Utilities</Filter>
</ClInclude>
<ClInclude Include="utilities\FileManager.h">
<Filter>Header Files\Utilities</Filter>
</ClInclude>
<ClInclude Include="utilities\StringHelper.h">
<Filter>Header Files\Utilities</Filter>
</ClInclude>
@@ -276,7 +273,7 @@
<Filter>Header Files\DataStores\SharedMemory</Filter>
</ClInclude>
<ClInclude Include="datastores\DataStoreLockGuard.h">
<Filter>Header Files</Filter>
<Filter>Header Files\DataStores</Filter>
</ClInclude>
</ItemGroup>
</Project>
@@ -7,8 +7,6 @@ Date: 19-May-2026
#pragma once
class Notification;
class Observer
{
public:
@@ -144,11 +144,6 @@ bool DataStore::initialize()
success = false;
break;
}
if (!SharedMemory::createOrOpenMapping(m_payments))
{
success = false;
break;
}
if (!SharedMemory::createOrOpenMapping(m_serviceManagementObservers))
{
success = false;
@@ -193,7 +188,6 @@ void DataStore::shutdown()
SharedMemory::closeMapping(m_serviceBookings);
SharedMemory::closeMapping(m_jobCards);
SharedMemory::closeMapping(m_invoices);
SharedMemory::closeMapping(m_payments);
SharedMemory::closeMapping(m_serviceManagementObservers);
SharedMemory::closeMapping(m_paymentManagementObservers);
SharedMemory::closeMapping(m_inventoryManagementObservers);
@@ -565,32 +559,6 @@ void DataStore::saveInventoryManagementObservers(util::Map<std::string, User*>&
saveObservers(m_inventoryManagementObservers, observers);
}
/*
Function: lockDataStore
Description: Acquires exclusive access to the datastore.
Parameters:
- None
Returns:
- bool: True if the datastore was successfully locked, otherwise false
*/
bool DataStore::lockDataStore()
{
return false;
}
/*
Function: unlockDataStore
Description: Releases exclusive access to the datastore.
Parameters:
- None
Returns:
- bool: True if the datastore was successfully unlocked, otherwise false
*/
bool DataStore::unlockDataStore()
{
return false;
}
/*
Function: lockDataStore
Description: Acquires the datastore mutex, providing
@@ -12,14 +12,14 @@ Date: 19-May-2026
#include "MappingInfo.h"
#include "TrackedRecord.h"
#include "SharedMemory.h"
class User;
class Notification;
class Service;
class ComboPackage;
class InventoryItem;
class ServiceBooking;
class JobCard;
class Invoice;
#include "User.h"
#include "Notification.h"
#include "Service.h"
#include "ComboPackage.h"
#include "InventoryItem.h"
#include "ServiceBooking.h"
#include "JobCard.h"
#include "Invoice.h"
class DataStore
{
@@ -39,7 +39,6 @@ private:
MappingInfo m_serviceBookings;
MappingInfo m_jobCards;
MappingInfo m_invoices;
MappingInfo m_payments;
MappingInfo m_serviceManagementObservers;
MappingInfo m_paymentManagementObservers;
MappingInfo m_inventoryManagementObservers;
@@ -12,6 +12,7 @@ Date: 19-May-2026
#include "Enums.h"
class Service;
struct SerializedComboPackage;
class ComboPackage
{
@@ -12,7 +12,6 @@ Date: 22-May-2026
#include "Config.h"
#include "Enums.h"
#include "Factory.h"
#include "FileManager.h"
#include "InventoryItem.h"
#include "InventoryManagementService.h"
#include "Timestamp.h"
@@ -90,95 +89,6 @@ void InventoryManagementService::sendLowStockAlerts()
}
}
/*
Function: getObserverIDs
Description: Retrieves the IDs of all observers currently attached to the
InventoryManagementService.
Parameters:
- None
Returns:
- util::Vector<std::string>: Vector of observer user IDs
*/
util::Vector<std::string> InventoryManagementService::getObserverIDs()
{
util::Vector<std::string> observerIDs;
int numberOfObservers = m_observers.getSize();
for (int index = 0; index < numberOfObservers; index++)
{
User* observer = m_observers.getValueAt(index);
if (observer)
{
observerIDs.push_back(observer->getId());
}
}
return observerIDs;
}
/*
Function: loadInventoryItems
Description: Loads inventory items from persistent storage into the datastore.
Uses FileManager to deserialize inventory items from the configured file.
Parameters:
- None
Returns:
- void
*/
void InventoryManagementService::loadInventoryItems()
{
util::FileManager<InventoryItem> inventoryItemFileManager(config::file::INVENTORYITEM_FILE);
auto& inventoryItems = m_dataStore.getInventoryItems();
auto inventoryItemsMap = inventoryItemFileManager.load();
int numberOfInventoryItems = inventoryItemsMap.getSize();
for (int index = 0; index < numberOfInventoryItems; index++)
{
inventoryItems[inventoryItemsMap.getKeyAt(index)] = inventoryItemsMap.getValueAt(index);
}
}
/*
Function: saveInventoryItems
Description: Saves inventory items from the datastore to persistent storage.
Uses FileManager to serialize inventory items into the configured file.
Parameters:
- None
Returns:
- void
*/
void InventoryManagementService::saveInventoryItems()
{
util::FileManager<InventoryItem> inventoryItemFileManager(config::file::INVENTORYITEM_FILE);
auto& inventoryItems = m_dataStore.getInventoryItems();
inventoryItemFileManager.save(inventoryItems);
}
/*
Function: loadObservers
Description: Loads observer IDs from persistent storage and attaches corresponding
users as observers to the InventoryManagementService.
Parameters:
- None
Returns:
- void
*/
void InventoryManagementService::loadObservers()
{
util::loadObservers(config::file::INVENTORYMANAGEMENTOBSERVERS, this, m_dataStore);
}
/*
Function: saveObservers
Description: Saves the current observer IDs of the InventoryManagementService
to persistent storage for future retrieval.
Parameters:
- None
Returns:
- void
*/
void InventoryManagementService::saveObservers()
{
util::saveObservers(config::file::INVENTORYMANAGEMENTOBSERVERS, this);
}
/*
Function: addInventoryItem
Description: Creates a new inventory item using the Factory and inserts it
@@ -21,7 +21,6 @@ class InventoryManagementService : public NotificationManagementService
private:
DataStore& m_dataStore;
static util::Map<std::string, User*> m_observers;
util::Vector<std::string> getObserverIDs() override;
public:
InventoryManagementService() : m_dataStore(DataStore::getInstance()) {}
util::Map<std::string, InventoryItem*> getInventoryItems();
@@ -33,8 +32,4 @@ public:
void sendNotification(User* user, const std::string& title, const std::string& message) override;
void attach(User* user) override;
void detach(User* user) override;
void loadInventoryItems();
void saveInventoryItems();
void loadObservers();
void saveObservers();
};
@@ -19,5 +19,4 @@ public:
virtual void sendNotification(User* recipient, const std::string& title, const std::string& message) = 0;
virtual void attach(User* user) = 0;
virtual void detach(User* user) = 0;
virtual util::Vector<std::string> getObserverIDs() = 0;
};
@@ -11,7 +11,6 @@ Date: 20-May-2026
#include "Config.h"
#include "Enums.h"
#include "Factory.h"
#include "FileManager.h"
#include "InventoryItem.h"
#include "Invoice.h"
#include "JobCard.h"
@@ -149,123 +148,6 @@ void PaymentManagementService::sendPaymentReminders()
}
}
/*
Function: getObserverIDs
Description: Retrieves the IDs of all observers currently attached to the
PaymentManagementService.
Parameters:
- None
Returns:
- util::Vector<std::string>: Vector of observer user IDs
*/
util::Vector<std::string> PaymentManagementService::getObserverIDs()
{
util::Vector<std::string> observerIDs;
int numberOfObservers = m_observers.getSize();
for (int index = 0; index < numberOfObservers; index++)
{
User* observer = m_observers.getValueAt(index);
if (observer)
{
observerIDs.push_back(observer->getId());
}
}
return observerIDs;
}
/*
Function: loadInvoices
Description: Loads invoices from persistent storage into the datastore.
Validates associated service bookings and inventory parts before
attaching them to each invoice. Throws exceptions if invalid IDs
are encountered.
Parameters:
- None
Returns:
- void
Throws:
- std::runtime_error if a booking ID or part ID is invalid
*/
void PaymentManagementService::loadInvoices()
{
util::FileManager<Invoice> invoiceFileManager(config::file::INVOICE_FILE);
auto& invoices = m_dataStore.getInvoices();
auto& serviceBookings = m_dataStore.getServiceBookings();
auto& inventoryItems = m_dataStore.getInventoryItems();
auto invoicesMap = invoiceFileManager.load();
for (int invoiceIndex = 0; invoiceIndex < invoicesMap.getSize(); invoiceIndex++)
{
Invoice* invoice = invoicesMap.getValueAt(invoiceIndex);
int bookingIndex = serviceBookings.find(invoice->getBookingId());
if (bookingIndex == -1)
{
throw std::runtime_error("Invalid Booking ID");
}
ServiceBooking* booking = serviceBookings.getValueAt(bookingIndex);
invoice->setBooking(booking);
util::Map<std::string, InventoryItem*> invoiceParts;
auto& partIDs = invoice->getPartIDs();
for (int partIndex = 0; partIndex < partIDs.getSize(); partIndex++)
{
const std::string& partID = partIDs[partIndex];
int inventoryIndex = inventoryItems.find(partID);
if (inventoryIndex == -1)
{
throw std::runtime_error("Invalid Part ID");
}
invoiceParts[partID] = inventoryItems.getValueAt(inventoryIndex);
}
invoice->setParts(invoiceParts);
invoices[invoice->getId()] = invoice;
}
}
/*
Function: saveInvoices
Description: Saves invoices from the datastore to persistent storage.
Uses FileManager to serialize invoices into the configured file.
Parameters:
- None
Returns:
- void
*/
void PaymentManagementService::saveInvoices()
{
util::FileManager<Invoice> invoiceFileManager(config::file::INVOICE_FILE);
auto& invoices = m_dataStore.getInvoices();
invoiceFileManager.save(invoices);
}
/*
Function: loadObservers
Description: Loads observer IDs from persistent storage and attaches corresponding
users as observers to the PaymentManagementService.
Parameters:
- None
Returns:
- void
Throws:
- std::runtime_error if an observer ID is invalid (not found in datastore)
*/
void PaymentManagementService::loadObservers()
{
util::loadObservers(config::file::PAYMENTMANAGEMENTOBSERVERS, this, m_dataStore);
}
/*
Function: saveObservers
Description: Saves the current observer IDs of the PaymentManagementService
to persistent storage for future retrieval.
Parameters:
- None
Returns:
- void
*/
void PaymentManagementService::saveObservers()
{
util::saveObservers(config::file::PAYMENTMANAGEMENTOBSERVERS, this);
}
/*
Function: createInventoryItemsMap (static helper)
Description: Builds a map of inventory items required for a given service and adds them to the bookings inventory map.
@@ -22,7 +22,6 @@ class PaymentManagementService : public NotificationManagementService
private:
DataStore& m_dataStore;
static util::Map<std::string, User*> m_observers;
util::Vector<std::string> getObserverIDs() override;
public:
PaymentManagementService() : m_dataStore(DataStore::getInstance()) {}
void generateInvoice(ServiceBooking* booking);
@@ -34,8 +33,4 @@ public:
void sendNotification(User* user, const std::string& title, const std::string& message) override;
void attach(User* user) override;
void detach(User* user) override;
void loadInvoices();
void saveInvoices();
void loadObservers();
void saveObservers();
};
@@ -14,7 +14,6 @@ Date:19-May-2026
#include "DataStore.h"
#include "Enums.h"
#include "Factory.h"
#include "FileManager.h"
#include "InventoryItem.h"
#include "JobCard.h"
#include "NotificationManagementService.h"
@@ -199,299 +198,6 @@ void ServiceManagementService::sendNotification(User* user, const std::string& t
m_dataStore.saveNotifications();
}
/*
Function: loadServices
Description: Loads services from persistent storage into the datastore.
Validates required inventory items and attaches them to each service.
Parameters:
- None
Returns:
- void
Throws:
- std::runtime_error if an inventory item ID is invalid
*/
void ServiceManagementService::loadServices()
{
util::FileManager<Service> serviceFileManager(config::file::SERVICE_FILE);
auto& services = m_dataStore.getServices();
auto& inventoryItems = m_dataStore.getInventoryItems();
auto servicesMap = serviceFileManager.load();
for (int serviceIndex = 0; serviceIndex < servicesMap.getSize(); serviceIndex++)
{
Service* service = servicesMap.getValueAt(serviceIndex);
services[service->getId()] = service;
util::Map<std::string, InventoryItem*> inventoryItemsMap;
auto& inventoryItemIDs = service->getRequiredInventoryItemIDs();
for (int inventoryItemIndex = 0; inventoryItemIndex < inventoryItemIDs.getSize(); inventoryItemIndex++)
{
const std::string& inventoryItemID = inventoryItemIDs[inventoryItemIndex];
int index = inventoryItems.find(inventoryItemID);
if (index == -1)
{
throw std::runtime_error("Invalid Inventory Item ID");
}
inventoryItemsMap[inventoryItemID] = inventoryItems.getValueAt(index);
}
service->setRequiredInventoryItems(inventoryItemsMap);
}
}
/*
Function: saveServices
Description: Saves services from the datastore to persistent storage.
Uses FileManager to serialize services into the configured file.
Parameters:
- None
Returns:
- void
*/
void ServiceManagementService::saveServices()
{
util::FileManager<Service> serviceFileManager(config::file::SERVICE_FILE);
auto& services = m_dataStore.getServices();
serviceFileManager.save(services);
}
/*
Function: loadComboPackages
Description: Loads combo packages from persistent storage into the datastore.
Validates associated services and attaches them to each package.
Parameters:
- None
Returns:
- void
Throws:
- std::runtime_error if a service ID is invalid
*/
void ServiceManagementService::loadComboPackages()
{
util::FileManager<ComboPackage> comboPackageFileManager(config::file::COMBOPACKAGE_FILE);
auto& comboPackages = m_dataStore.getComboPackages();
auto& services = m_dataStore.getServices();
auto comboPackagesMap = comboPackageFileManager.load();
for (int packageIndex = 0; packageIndex < comboPackagesMap.getSize(); packageIndex++)
{
ComboPackage* comboPackage = comboPackagesMap.getValueAt(packageIndex);
util::Map<std::string, Service*> packageServices;
auto& serviceIDs = comboPackage->getServiceIDs();
for (int serviceIndex = 0; serviceIndex < serviceIDs.getSize(); serviceIndex++)
{
const std::string& serviceID = serviceIDs[serviceIndex];
int serviceMapIndex = services.find(serviceID);
if (serviceMapIndex == -1)
{
throw std::runtime_error("Invalid Service ID");
}
packageServices[serviceID] = services.getValueAt(serviceMapIndex);
}
comboPackage->setServices(packageServices);
comboPackages[comboPackage->getId()] = comboPackage;
}
}
/*
Function: saveComboPackages
Description: Saves combo packages from the datastore to persistent storage.
Uses FileManager to serialize combo packages into the configured file.
Parameters:
- None
Returns:
- void
*/
void ServiceManagementService::saveComboPackages()
{
util::FileManager<ComboPackage> comboPackageFileManager(config::file::COMBOPACKAGE_FILE);
auto& comboPackages = m_dataStore.getComboPackages();
comboPackageFileManager.save(comboPackages);
}
/*
Function: loadServiceBookings
Description: Loads service bookings from persistent storage into the datastore.
Validates associated services, customers, and technicians before
attaching them to each booking.
Parameters:
- None
Returns:
- void
Throws:
- std::runtime_error if a service ID, customer ID, or technician ID is invalid
- std::runtime_error if a user is not of the expected type (customer/technician)
*/
void ServiceManagementService::loadServiceBookings()
{
util::FileManager<ServiceBooking> bookingFileManager(config::file::SERVICEBOOKING_FILE);
auto& serviceBookings = m_dataStore.getServiceBookings();
auto& services = m_dataStore.getServices();
auto& users = m_dataStore.getUsers();
auto bookingsMap = bookingFileManager.load();
for (int bookingIndex = 0; bookingIndex < bookingsMap.getSize(); bookingIndex++)
{
ServiceBooking* booking = bookingsMap.getValueAt(bookingIndex);
util::Map<std::string, Service*> bookingServices;
auto& serviceIDs = booking->getServiceIDs();
for (int serviceIndex = 0; serviceIndex < serviceIDs.getSize(); serviceIndex++)
{
const std::string& serviceID = serviceIDs[serviceIndex];
int serviceMapIndex = services.find(serviceID);
if (serviceMapIndex == -1)
{
throw std::runtime_error("Invalid Service ID");
}
bookingServices[serviceID] = services.getValueAt(serviceMapIndex);
}
booking->setServices(bookingServices);
int customerIndex = users.find(booking->getCustomerId());
if (customerIndex == -1)
{
throw std::runtime_error("Invalid Customer ID");
}
User* customer = users.getValueAt(customerIndex);
if (customer->getUserType() != util::UserType::CUSTOMER)
{
throw std::runtime_error("User is not a customer");
}
booking->setCustomer(customer);
const std::string& technicianId = booking->getAssignedTechnicianId();
if (!technicianId.empty())
{
int technicianIndex = users.find(technicianId);
if (technicianIndex == -1)
{
throw std::runtime_error("Invalid Technician ID");
}
User* technician = users.getValueAt(technicianIndex);
if (technician->getUserType() != util::UserType::TECHNICIAN)
{
throw std::runtime_error("User is not a technician");
}
booking->setAssignedTechnician(technician);
}
serviceBookings[booking->getId()] = booking;
}
}
/*
Function: saveServiceBookings
Description: Saves service bookings from the datastore to persistent storage.
Uses FileManager to serialize bookings into the configured file.
Parameters:
- None
Returns:
- void
*/
void ServiceManagementService::saveServiceBookings()
{
util::FileManager<ServiceBooking> bookingFileManager(config::file::SERVICEBOOKING_FILE);
auto& serviceBookings = m_dataStore.getServiceBookings();
bookingFileManager.save(serviceBookings);
}
/*
Function: loadJobCards
Description: Loads job cards from persistent storage into the datastore.
Validates associated bookings, services, and technicians before
attaching them to each job card.
Parameters:
- None
Returns:
- void
Throws:
- std::runtime_error if a booking ID, service ID, or technician ID is invalid
- std::runtime_error if a service does not belong to the booking
- std::runtime_error if a user is not a technician
*/
void ServiceManagementService::loadJobCards()
{
util::FileManager<JobCard> jobCardFileManager(config::file::JOBCARD_FILE);
auto& jobCards = m_dataStore.getJobCards();
auto& serviceBookings = m_dataStore.getServiceBookings();
auto& services = m_dataStore.getServices();
auto& users = m_dataStore.getUsers();
auto jobCardsMap = jobCardFileManager.load();
for (int jobCardIndex = 0; jobCardIndex < jobCardsMap.getSize(); jobCardIndex++)
{
JobCard* jobCard = jobCardsMap.getValueAt(jobCardIndex);
int bookingIndex = serviceBookings.find(jobCard->getBookingId());
if (bookingIndex == -1)
{
throw std::runtime_error("Invalid Booking ID");
}
ServiceBooking* booking = serviceBookings.getValueAt(bookingIndex);
jobCard->setBooking(booking);
int serviceIndex = services.find(jobCard->getServiceId());
if (serviceIndex == -1)
{
throw std::runtime_error("Invalid Service ID");
}
Service* service = services.getValueAt(serviceIndex);
if (booking->getServices().find(jobCard->getServiceId()) == -1)
{
throw std::runtime_error("Service does not belong to booking");
}
jobCard->setService(service);
int technicianIndex = users.find(jobCard->getTechnicianId());
if (technicianIndex == -1)
{
throw std::runtime_error("Invalid Technician ID");
}
User* technician = users.getValueAt(technicianIndex);
if (technician->getUserType() != util::UserType::TECHNICIAN)
{
throw std::runtime_error("User is not a technician");
}
jobCard->setTechnician(technician);
jobCards[jobCard->getId()] = jobCard;
}
}
/*
Function: saveJobCards
Description: Saves job cards from the datastore to persistent storage.
Uses FileManager to serialize job cards into the configured file.
Parameters:
- None
Returns:
- void
*/
void ServiceManagementService::saveJobCards()
{
util::FileManager<JobCard> jobCardFileManager(config::file::JOBCARD_FILE);
auto& jobCards = m_dataStore.getJobCards();
jobCardFileManager.save(jobCards);
}
/*
Function: loadObservers
Description: Loads observer IDs from persistent storage and attaches corresponding
users as observers to the ServiceManagementService.
Parameters:
- None
Returns:
- void
Throws:
- std::runtime_error if an observer ID is invalid (not found in datastore)
*/
void ServiceManagementService::loadObservers()
{
util::loadObservers(config::file::SERVICEMANAGEMENTOBSERVERS, this, m_dataStore);
}
/*
Function: saveObservers
Description: Saves the current observer IDs of the ServiceManagementService
to persistent storage for future retrieval.
Parameters:
- None
Returns:
- void
*/
void ServiceManagementService::saveObservers()
{
util::saveObservers(config::file::SERVICEMANAGEMENTOBSERVERS, this);
}
/*
Function: restoreInventory
Description: Restores inventory quantities for all required items in the services associated
@@ -23,7 +23,6 @@ class ServiceManagementService : public NotificationManagementService
private:
DataStore& m_dataStore;
static util::Map<std::string, User*> m_observers;
util::Vector<std::string> getObserverIDs() override;
public:
ServiceManagementService() : m_dataStore(DataStore::getInstance()) {}
util::Map<std::string, Service*> getServices();
@@ -45,12 +44,4 @@ public:
void sendNotification(User* user, const std::string& title, const std::string& message) override;
void attach(User* user) override;
void detach(User* user) override;
void loadServices();
void saveServices();
void loadComboPackages();
void saveComboPackages();
void loadServiceBookings();
void saveServiceBookings();
void loadJobCards();
void saveJobCards();
};
@@ -11,7 +11,6 @@ Date:19-May-2026
#include "Config.h"
#include "Enums.h"
#include "Factory.h"
#include "FileManager.h"
#include "InventoryManagementService.h"
#include "Notification.h"
#include "PaymentManagementService.h"
@@ -43,67 +43,4 @@ namespace util
position++;
}
}
/*
Function: loadRecords
Description: Loads records from a given file path into a vector of strings.
Skips the header line if present. Creates the file if it does not exist.
Parameters:
- filePath: const std::string&, path to the file
Returns:
- util::Vector<std::string>: Vector containing all records (excluding header)
Throws:
- None (creates file if missing)
*/
inline util::Vector<std::string> loadRecords(const std::string& filePath)
{
util::Vector<std::string> records;
std::ifstream file(filePath);
if (!file.is_open())
{
ensureDirectoryExists(filePath);
std::ofstream newFile(filePath);
newFile.close();
file.open(filePath);
}
std::string line;
bool isHeader = true;
while (std::getline(file, line))
{
if (isHeader)
{
isHeader = false;
continue;
}
records.push_back(line);
}
return records;
}
/*
Function: saveRecords
Description: Saves records to a given file path. Overwrites existing content
and writes a header line followed by all records.
Parameters:
- filePath: const std::string&, path to the file
- records: const util::Vector<std::string>&, vector of records to save
Returns:
- void
Throws:
- std::runtime_error if the file cannot be opened for writing
*/
inline void saveRecords(const std::string& filePath, const util::Vector<std::string>& records)
{
std::ofstream file(filePath, std::ios::trunc);
if (!file.is_open())
{
throw std::runtime_error("Failed to open file " + filePath);
}
file << "Values" << '\n';
int numberOfRecords = records.getSize();
for (int index = 0; index < numberOfRecords; index++)
{
file << records[index] << '\n';
}
}
}
@@ -1,119 +0,0 @@
/*
File: FileManager.h
Description: Declares and implements a generic FileManager template class for
loading and saving objects to and from files. Uses serialization
and deserialization methods defined in the object type T.
Provides persistence support for system entities such as Users,
Services, InventoryItems, etc.
Author: Trenser
Date: 22-May-2026
*/
#pragma once
#include <stdexcept>
#include <string>
#include <fstream>
#include "Vector.h"
#include "Map.h"
#include "FileHelper.h"
namespace util
{
template <typename T> using objects = util::Map<std::string, T*>;
template <typename T>
class FileManager
{
private:
std::string m_filePath;
public:
FileManager() : m_filePath("") {}
FileManager(const std::string& filePath) : m_filePath(filePath) {}
objects<T> load();
void save(const objects<T>&);
};
/*
Function: load
Description: Loads records from the file into a map of objects.
Skips the header line, deserializes each record into an object of type T,
and stores them in a map keyed by object ID.
Parameters:
- None
Returns:
- util::Map<std::string, T*> containing deserialized objects
Throws:
- std::runtime_error if deserialization fails for any record
*/
template <typename T>
objects<T> FileManager<T>::load()
{
objects<T> records;
std::ifstream file(m_filePath);
if (!file.is_open())
{
ensureDirectoryExists(m_filePath);
std::ofstream newFile(m_filePath);
newFile.close();
file.open(m_filePath);
}
util::Vector<std::string> lines;
std::string line;
while (std::getline(file, line))
{
lines.push_back(line);
}
int numberOfLines = lines.getSize();
bool isHeader = true;
for (int lineIndex = 0; lineIndex < numberOfLines; lineIndex++)
{
const auto& record = lines[lineIndex];
if (isHeader)
{
isHeader = false;
continue;
}
auto object = T::deserialize(record);
if (!object)
{
throw std::runtime_error("Failed to deserialize record");
}
records[object->getId()] = object;
}
return records;
}
/*
Function: save
Description: Saves records to the file. Serializes each object of type T into a string,
writes a header line, and then writes all serialized records to the file.
Parameters:
- records: const util::Map<std::string, T*>&, map of objects to save
Returns:
- void
Throws:
- std::runtime_error if the file cannot be opened for writing
*/
template <typename T>
void FileManager<T>::save(const objects<T>& records)
{
util::Vector<std::string> lines;
lines.push_back(T::getHeaders());
int numberOfRecords = records.getSize();
for (int recordIndex = 0; recordIndex < numberOfRecords; recordIndex++)
{
const auto& record = records.getValueAt(recordIndex);
lines.push_back(record->serialize());
}
std::ofstream file(m_filePath, std::ios::trunc);
if (!file.is_open())
{
throw std::runtime_error("Failed to open file " + m_filePath);
}
int numberOfLines = lines.getSize();
for (int lineIndex = 0; lineIndex < numberOfLines; lineIndex++)
{
file << lines[lineIndex] << '\n';
}
}
}
@@ -28,7 +28,7 @@ namespace util
if (!(std::cin >> value))
{
std::cin.clear();
std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
std::cin.ignore((std::numeric_limits<std::streamsize>::max)(), '\n');
throw std::runtime_error("Invalid console input");
}
}
@@ -54,52 +54,6 @@ namespace util
return cost;
}
/*
Function: loadObservers
Description: Loads observer IDs from a file and attaches the corresponding users
to the notification management service. Validates that each observer ID
exists in the datastore before attaching.
Parameters:
- filePath: const std::string&, path to the file containing observer IDs
- service: NotificationManagementService*, pointer to the notification service
- dataStore: DataStore&, reference to the datastore containing users
Returns:
- void
Throws:
- std::runtime_error if an observer ID is invalid (not found in datastore)
*/
inline void loadObservers(const std::string& filePath, NotificationManagementService* service, DataStore& dataStore)
{
auto observerIDs = util::loadRecords(filePath);
auto& users = dataStore.getUsers();
for (int index = 0; index < observerIDs.getSize(); index++)
{
const std::string& observerID = observerIDs[index];
int userIndex = users.find(observerID);
if (userIndex == -1)
{
throw std::runtime_error("Invalid Observer ID");
}
service->attach(users.getValueAt(userIndex));
}
}
/*
Function: saveObservers
Description: Saves the current observer IDs from the notification management service
to a file for persistence.
Parameters:
- filePath: const std::string&, path to the file where observer IDs will be saved
- service: NotificationManagementService*, pointer to the notification service
Returns:
- void
*/
inline void saveObservers(const std::string& filePath, NotificationManagementService* service)
{
auto observerIDs = service->getObserverIDs();
util::saveRecords(filePath, observerIDs);
}
template<typename TObject>
Map<std::string, TObject*> getObjects(const Map<std::string, TrackedRecord<TObject>>& trackedRecords);