Implemented datastore shared memory codebase

Changes:
- Added SharedMemory module for file-backed memory-mapped storage
- Added MappingInfo, FileHeader, RecordState and TrackedRecord infrastructure
- Replaced CSV-based serialization with binary struct serialization
- Added DataStore initialization and shutdown lifecycle management
- Added datastore mutex synchronization for multi-process access
- Added shared-memory mapping configuration for all datastore entities
- Added generic loadRecords and saveRecords template infrastructure
- Added automatic datastore directory creation and .dat file storage
- Updated configuration to use binary datastore files and initial capacities
- Added enum underlying types for serialization compatibility
- Added password masking support for login, registration and password change flows
- Added Visual Studio project configuration for shared-memory components
- Added datastore-owned record caches for runtime object management
- Updated datastore APIs to return cached tracked-record collections by reference
- Added generic cache refresh and cleanup infrastructure
- Updated save operations to persist datastore caches directly
- Added automatic cache cleanup during datastore destruction
- Prepared datastore for multi-process shared-memory persistence
This commit is contained in:
2026-06-12 00:59:10 +05:30
parent 602b538830
commit 3b1f3301d6
22 changed files with 1502 additions and 101 deletions
@@ -102,7 +102,7 @@
<SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode>
<AdditionalIncludeDirectories>$(ProjectDir)models;$(ProjectDir)controllers;$(ProjectDir)factories;$(ProjectDir)views;$(ProjectDir)services;$(ProjectDir)utilities;$(ProjectDir)core\patterns;$(ProjectDir)datastores;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalIncludeDirectories>$(ProjectDir)models;$(ProjectDir)controllers;$(ProjectDir)factories;$(ProjectDir)views;$(ProjectDir)services;$(ProjectDir)utilities;$(ProjectDir)core\patterns;$(ProjectDir)datastores;$(ProjectDir)datastores\sharedmemory;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
@@ -117,7 +117,7 @@
<SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode>
<AdditionalIncludeDirectories>$(ProjectDir)models;$(ProjectDir)controllers;$(ProjectDir)factories;$(ProjectDir)views;$(ProjectDir)services;$(ProjectDir)utilities;$(ProjectDir)core\patterns;$(ProjectDir)datastores;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalIncludeDirectories>$(ProjectDir)models;$(ProjectDir)controllers;$(ProjectDir)factories;$(ProjectDir)views;$(ProjectDir)services;$(ProjectDir)utilities;$(ProjectDir)core\patterns;$(ProjectDir)datastores;$(ProjectDir)datastores\sharedmemory;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
@@ -129,6 +129,7 @@
<ClCompile Include="core\patterns\Observer.cpp" />
<ClCompile Include="core\patterns\Subject.cpp" />
<ClCompile Include="datastores\DataStore.cpp" />
<ClCompile Include="datastores\sharedmemory\SharedMemory.cpp" />
<ClCompile Include="models\ComboPackage.cpp" />
<ClCompile Include="models\InventoryItem.cpp" />
<ClCompile Include="models\Invoice.cpp" />
@@ -156,6 +157,12 @@
<ClInclude Include="core\patterns\Observer.h" />
<ClInclude Include="core\patterns\Subject.h" />
<ClInclude Include="datastores\DataStore.h" />
<ClInclude Include="datastores\sharedmemory\FileHeader.h" />
<ClInclude Include="datastores\sharedmemory\MappingInfo.h" />
<ClInclude Include="datastores\sharedmemory\RecordState.h" />
<ClInclude Include="datastores\sharedmemory\SerializedRecords.h" />
<ClInclude Include="datastores\sharedmemory\SharedMemory.h" />
<ClInclude Include="datastores\sharedmemory\TrackedRecord.h" />
<ClInclude Include="factories\Factory.h" />
<ClInclude Include="models\ComboPackage.h" />
<ClInclude Include="models\InventoryItem.h" />
@@ -64,6 +64,12 @@
<Filter Include="Source Files\Core\Patterns">
<UniqueIdentifier>{8057b93d-51a9-42df-b06e-01ce395f6308}</UniqueIdentifier>
</Filter>
<Filter Include="Header Files\DataStores\SharedMemory">
<UniqueIdentifier>{ec639004-44c6-4bd6-9963-077adde82b5f}</UniqueIdentifier>
</Filter>
<Filter Include="Source Files\DataStores\SharedMemory">
<UniqueIdentifier>{7aa8722e-adfa-466e-8211-de63f3b7892b}</UniqueIdentifier>
</Filter>
</ItemGroup>
<ItemGroup>
<ClCompile Include="Trenser.VehicleServiceSystem.cpp">
@@ -141,6 +147,9 @@
<ClCompile Include="models\ComboPackage.cpp">
<Filter>Source Files\Models</Filter>
</ClCompile>
<ClCompile Include="datastores\sharedmemory\SharedMemory.cpp">
<Filter>Source Files\DataStores\SharedMemory</Filter>
</ClCompile>
</ItemGroup>
<ItemGroup>
<ClInclude Include="utilities\InputHelper.h">
@@ -251,5 +260,23 @@
<ClInclude Include="views\MenuHelper.h">
<Filter>Header Files\Views</Filter>
</ClInclude>
<ClInclude Include="datastores\sharedmemory\FileHeader.h">
<Filter>Header Files\DataStores\SharedMemory</Filter>
</ClInclude>
<ClInclude Include="datastores\sharedmemory\MappingInfo.h">
<Filter>Header Files\DataStores\SharedMemory</Filter>
</ClInclude>
<ClInclude Include="datastores\sharedmemory\RecordState.h">
<Filter>Header Files\DataStores\SharedMemory</Filter>
</ClInclude>
<ClInclude Include="datastores\sharedmemory\TrackedRecord.h">
<Filter>Header Files\DataStores\SharedMemory</Filter>
</ClInclude>
<ClInclude Include="datastores\sharedmemory\SerializedRecords.h">
<Filter>Header Files\DataStores\SharedMemory</Filter>
</ClInclude>
<ClInclude Include="datastores\sharedmemory\SharedMemory.h">
<Filter>Header Files\DataStores\SharedMemory</Filter>
</ClInclude>
</ItemGroup>
</Project>
@@ -6,6 +6,7 @@ Description: Implementation file containing the method definitions of the
Author: Trenser
Date:19-May-2026
*/
#include "ComboPackage.h"
#include "Controller.h"
#include "Enums.h"
@@ -9,6 +9,200 @@ Date: 19-May-2026
*/
#include "DataStore.h"
#include "Config.h"
#include "SerializedRecords.h"
#include "FileHelper.h"
/*
Function: DataStore
Description: Constructs the DataStore singleton and initializes
internal handles to their default values.
Parameters:
- None
Returns:
- None
*/
DataStore::DataStore() :
m_globalMutex(NULL) {}
/*
Function: ~DataStore
Description: Destroys the DataStore singleton and releases all
cached application objects owned by the datastore.
This includes users, notifications, services,
combo packages, inventory items, service bookings,
job cards, and invoices.
Parameters:
- None
Returns:
- None
*/
DataStore::~DataStore()
{
clearCache(m_userCache);
clearCache(m_notificationCache);
clearCache(m_serviceCache);
clearCache(m_comboPackageCache);
clearCache(m_inventoryItemCache);
clearCache(m_serviceBookingCache);
clearCache(m_jobCardCache);
clearCache(m_invoiceCache);
}
/*
Function: initialize
Description: Initializes the shared-memory datastore.
Creates or opens the global datastore mutex,
configures all mapping metadata, and creates
or opens the file mappings used to persist
application data. After successful completion,
all datastore files are mapped into memory and
ready for use by the application.
Parameter: None
Return type: bool
- true : Initialization completed successfully.
- false : Failed to create the mutex or open
one or more file mappings.
*/
bool DataStore::initialize()
{
m_globalMutex = CreateMutexA(NULL, FALSE, "VehicleServiceSystemMutex");
if (m_globalMutex == NULL)
{
return false;
}
if (!lockDataStore())
{
CloseHandle(m_globalMutex);
m_globalMutex = NULL;
return false;
}
bool success = true;
do
{
util::ensureDirectoryExists(config::file::DIRECTORY);
m_users.fileName = config::file::USER_FILE;
m_users.recordSize = sizeof(SerializedUser);
m_notifications.fileName = config::file::NOTIFICATION_FILE;
m_notifications.recordSize = sizeof(SerializedNotification);
m_services.fileName = config::file::SERVICE_FILE;
m_services.recordSize = sizeof(SerializedService);
m_comboPackages.fileName = config::file::COMBOPACKAGE_FILE;
m_comboPackages.recordSize = sizeof(SerializedComboPackage);
m_inventoryItems.fileName = config::file::INVENTORYITEM_FILE;
m_inventoryItems.recordSize = sizeof(SerializedInventoryItem);
m_serviceBookings.fileName = config::file::SERVICEBOOKING_FILE;
m_serviceBookings.recordSize = sizeof(SerializedServiceBooking);
m_jobCards.fileName = config::file::JOBCARD_FILE;
m_jobCards.recordSize = sizeof(SerializedJobCard);
m_invoices.fileName = config::file::INVOICE_FILE;
m_invoices.recordSize = sizeof(SerializedInvoice);
m_serviceManagementObservers.fileName = config::file::SERVICEMANAGEMENTOBSERVERS;
m_serviceManagementObservers.recordSize = sizeof(SerializedObserver);
m_paymentManagementObservers.fileName = config::file::PAYMENTMANAGEMENTOBSERVERS;
m_paymentManagementObservers.recordSize = sizeof(SerializedObserver);
m_inventoryManagementObservers.fileName = config::file::INVENTORYMANAGEMENTOBSERVERS;
m_inventoryManagementObservers.recordSize = sizeof(SerializedObserver);
if (!SharedMemory::createOrOpenMapping(m_users))
{
success = false;
break;
}
if (!SharedMemory::createOrOpenMapping(m_notifications))
{
success = false;
break;
}
if (!SharedMemory::createOrOpenMapping(m_services))
{
success = false;
break;
}
if (!SharedMemory::createOrOpenMapping(m_comboPackages))
{
success = false;
break;
}
if (!SharedMemory::createOrOpenMapping(m_inventoryItems))
{
success = false;
break;
}
if (!SharedMemory::createOrOpenMapping(m_serviceBookings))
{
success = false;
break;
}
if (!SharedMemory::createOrOpenMapping(m_jobCards))
{
success = false;
break;
}
if (!SharedMemory::createOrOpenMapping(m_invoices))
{
success = false;
break;
}
if (!SharedMemory::createOrOpenMapping(m_payments))
{
success = false;
break;
}
if (!SharedMemory::createOrOpenMapping(m_serviceManagementObservers))
{
success = false;
break;
}
if (!SharedMemory::createOrOpenMapping(m_paymentManagementObservers))
{
success = false;
break;
}
if (!SharedMemory::createOrOpenMapping(m_inventoryManagementObservers))
{
success = false;
break;
}
} while (false);
unlockDataStore();
if (!success)
{
shutdown();
}
return success;
}
/*
Function: shutdown
Description: Releases all shared-memory resources owned by the
datastore. Closes every file mapping, unmaps all
mapped views, and releases the datastore mutex.
After this call, the datastore must be initialized
again before use.
Parameter: None
Return type: void
*/
void DataStore::shutdown()
{
SharedMemory::closeMapping(m_users);
SharedMemory::closeMapping(m_notifications);
SharedMemory::closeMapping(m_services);
SharedMemory::closeMapping(m_comboPackages);
SharedMemory::closeMapping(m_inventoryItems);
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);
if (m_globalMutex != NULL)
{
CloseHandle(m_globalMutex);
m_globalMutex = NULL;
}
}
/*
Function: getInstance
@@ -26,104 +220,346 @@ DataStore& DataStore::getInstance()
/*
Function: getUsers
Description: Retrieves the internal map of users.
Description: Retrieves all user records from the datastore.
Parameters:
- None
Returns:
- Reference to util::Map<std::string, User*> containing all users.
- util::Map<std::string, TrackedRecord<User>>: Collection of user records
*/
util::Map<std::string, User*>& DataStore::getUsers()
util::Map<std::string, TrackedRecord<User>>& DataStore::getUsers()
{
return m_users;
return m_userCache;
}
/*
Function: getNotifications
Description: Retrieves all notification records from the datastore.
Parameters:
- None
Returns:
- util::Map<std::string, TrackedRecord<Notification>>: Collection of notification records
*/
util::Map<std::string, TrackedRecord<Notification>>& DataStore::getNotifications()
{
return m_notificationCache;
}
/*
Function: getServices
Description: Retrieves the internal map of services.
Description: Retrieves all service records from the datastore.
Parameters:
- None
Returns:
- Reference to util::Map<std::string, Service*> containing all services.
- util::Map<std::string, TrackedRecord<Service>>: Collection of service records
*/
util::Map<std::string, Service*>& DataStore::getServices()
util::Map<std::string, TrackedRecord<Service>>& DataStore::getServices()
{
return m_services;
return m_serviceCache;
}
/*
Function: getComboPackages
Description: Retrieves the internal map of combo packages.
Description: Retrieves all combo package records from the datastore.
Parameters:
- None
Returns:
- Reference to util::Map<std::string, ComboPackage*> containing all combo packages.
- util::Map<std::string, TrackedRecord<ComboPackage>>: Collection of combo package records
*/
util::Map<std::string, ComboPackage*>& DataStore::getComboPackages()
util::Map<std::string, TrackedRecord<ComboPackage>>& DataStore::getComboPackages()
{
return m_comboPackages;
}
/*
Function: getServiceBookings
Description: Retrieves the internal map of service bookings.
Parameters:
- None
Returns:
- Reference to util::Map<std::string, ServiceBooking*> containing all service bookings.
*/
util::Map<std::string, ServiceBooking*>& DataStore::getServiceBookings()
{
return m_serviceBookings;
}
/*
Function: getJobCards
Description: Retrieves the internal map of job cards.
Parameters:
- None
Returns:
- Reference to util::Map<std::string, JobCard*> containing all job cards.
*/
util::Map<std::string, JobCard*>& DataStore::getJobCards()
{
return m_jobCards;
return m_comboPackageCache;
}
/*
Function: getInventoryItems
Description: Retrieves the internal map of inventory items.
Description: Retrieves all inventory item records from the datastore.
Parameters:
- None
Returns:
- Reference to util::Map<std::string, InventoryItem*> containing all inventory items.
- util::Map<std::string, TrackedRecord<InventoryItem>>: Collection of inventory item records
*/
util::Map<std::string, InventoryItem*>& DataStore::getInventoryItems()
util::Map<std::string, TrackedRecord<InventoryItem>>& DataStore::getInventoryItems()
{
return m_inventoryItems;
return m_inventoryItemCache;
}
/*
Function: getServiceBookings
Description: Retrieves all service booking records from the datastore.
Parameters:
- None
Returns:
- util::Map<std::string, TrackedRecord<ServiceBooking>>: Collection of service booking records
*/
util::Map<std::string, TrackedRecord<ServiceBooking>>& DataStore::getServiceBookings()
{
return m_serviceBookingCache;
}
/*
Function: getJobCards
Description: Retrieves all job card records from the datastore.
Parameters:
- None
Returns:
- util::Map<std::string, TrackedRecord<JobCard>>: Collection of job card records
*/
util::Map<std::string, TrackedRecord<JobCard>>& DataStore::getJobCards()
{
return m_jobCardCache;
}
/*
Function: getInvoices
Description: Retrieves the internal map of invoices.
Description: Retrieves all invoice records from the datastore.
Parameters:
- None
Returns:
- Reference to util::Map<std::string, Invoice*> containing all invoices.
- util::Map<std::string, TrackedRecord<Invoice>>: Collection of invoice records
*/
util::Map<std::string, Invoice*>& DataStore::getInvoices()
util::Map<std::string, TrackedRecord<Invoice>>& DataStore::getInvoices()
{
return m_invoices;
return m_invoiceCache;
}
/*
Function: getPayments
Description: Retrieves the internal map of payments.
Function: getServiceManagementObservers
Description: Retrieves all service management observer records from the datastore.
Parameters:
- None
Returns:
- Reference to util::Map<std::string, Payment*> containing all payments.
- util::Map<std::string, User*>: Collection of observer records
*/
util::Map<std::string, Payment*>& DataStore::getPayments()
util::Map<std::string, User*> DataStore::getServiceManagementObservers()
{
return m_payments;
}
return util::Map<std::string, User*>();
}
/*
Function: getPaymentManagementObservers
Description: Retrieves all payment management observer records from the datastore.
Parameters:
- None
Returns:
- util::Map<std::string, User*>: Collection of observer records
*/
util::Map<std::string, User*> DataStore::getPaymentManagementObservers()
{
return util::Map<std::string, User*>();
}
/*
Function: getInventoryManagementObservers
Description: Retrieves all inventory management observer records from the datastore.
Parameters:
- None
Returns:
- util::Map<std::string, User*>: Collection of observer records
*/
util::Map<std::string, User*> DataStore::getInventoryManagementObservers()
{
return util::Map<std::string, User*>();
}
/*
Function: saveUsers
Description: Persists all user records to the datastore.
Parameters:
- None
Returns:
- None
*/
void DataStore::saveUsers()
{
}
/*
Function: saveNotifications
Description: Persists all notification records to the datastore.
Parameters:
- None
Returns:
- None
*/
void DataStore::saveNotifications()
{
}
/*
Function: saveServices
Description: Persists all service records to the datastore.
Parameters:
- None
Returns:
- None
*/
void DataStore::saveServices()
{
}
/*
Function: saveComboPackages
Description: Persists all combo package records to the datastore.
Parameters:
- None
Returns:
- None
*/
void DataStore::saveComboPackages()
{
}
/*
Function: saveInventoryItems
Description: Persists all inventory item records to the datastore.
Parameters:
- None
Returns:
- None
*/
void DataStore::saveInventoryItems()
{
}
/*
Function: saveServiceBookings
Description: Persists all service booking records to the datastore.
Parameters:
- None
Returns:
- None
*/
void DataStore::saveServiceBookings()
{
}
/*
Function: saveJobCards
Description: Persists all job card records to the datastore.
Parameters:
- None
Returns:
- None
*/
void DataStore::saveJobCards()
{
}
/*
Function: saveInvoices
Description: Persists all invoice records to the datastore.
Parameters:
- None
Returns:
- None
*/
void DataStore::saveInvoices()
{
}
/*
Function: saveServiceManagementObservers
Description: Persists all service management observer records to the datastore.
Parameters:
- observers: util::Map<std::string, TrackedRecord<std::string>>&, collection of observer records
Returns:
- None
*/
void DataStore::saveServiceManagementObservers(util::Map<std::string, User*>& observers)
{
}
/*
Function: savePaymentManagementObservers
Description: Persists all payment management observer records to the datastore.
Parameters:
- observers: util::Map<std::string, User*>&, collection of observer records
Returns:
- None
*/
void DataStore::savePaymentManagementObservers(util::Map<std::string, User*>& observers)
{
}
/*
Function: saveInventoryManagementObservers
Description: Persists all inventory management observer records to the datastore.
Parameters:
- observers: util::Map<std::string, User*>&, collection of observer records
Returns:
- None
*/
void DataStore::saveInventoryManagementObservers(util::Map<std::string, User*>& 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
exclusive access to the shared-memory
datastore. This function blocks until
the mutex becomes available or an error
occurs.
Parameter: None
Return type:
bool
- true : Mutex successfully acquired.
- false : Failed to acquire the mutex.
*/
bool DataStore::lockDataStore()
{
if (m_globalMutex == NULL)
{
return false;
}
DWORD result = WaitForSingleObject(m_globalMutex, INFINITE);
return result == WAIT_OBJECT_0;
}
/*
Function: unlockDataStore
Description: Releases the datastore mutex after a
successful call to lockDataStore(),
allowing other processes to access the
shared-memory datastore.
Parameter: None
Return type:
bool
- true : Mutex successfully released.
- false : Failed to release the mutex.
*/
bool DataStore::unlockDataStore()
{
if (m_globalMutex == NULL)
{
return false;
}
return ReleaseMutex(m_globalMutex) != 0;
}
@@ -6,42 +6,232 @@ Date: 19-May-2026
*/
#pragma once
#include <windows.h>
#include <string>
#include "Map.h"
#include "MappingInfo.h"
#include "TrackedRecord.h"
#include "SharedMemory.h"
class User;
class Notification;
class Service;
class ComboPackage;
class InventoryItem;
class ServiceBooking;
class JobCard;
class InventoryItem;
class Invoice;
class Payment;
class DataStore
{
private:
util::Map<std::string, User*> m_users;
util::Map<std::string, Service*> m_services;
util::Map<std::string, ComboPackage*> m_comboPackages;
util::Map<std::string, ServiceBooking*> m_serviceBookings;
util::Map<std::string, JobCard*> m_jobCards;
util::Map<std::string, InventoryItem*> m_inventoryItems;
util::Map<std::string, Invoice*> m_invoices;
util::Map<std::string, Payment*> m_payments;
DataStore() {}
public:
static DataStore& getInstance();
DataStore();
~DataStore();
DataStore(const DataStore&) = delete;
DataStore& operator=(const DataStore&) = delete;
DataStore(DataStore&&) = delete;
DataStore& operator=(DataStore&&) = delete;
util::Map<std::string, User*>& getUsers();
util::Map<std::string, Service*>& getServices();
util::Map<std::string, ComboPackage*>& getComboPackages();
util::Map<std::string, ServiceBooking*>& getServiceBookings();
util::Map<std::string, JobCard*>& getJobCards();
util::Map<std::string, InventoryItem*>& getInventoryItems();
util::Map<std::string, Invoice*>& getInvoices();
util::Map<std::string, Payment*>& getPayments();
};
HANDLE m_globalMutex;
MappingInfo m_users;
MappingInfo m_notifications;
MappingInfo m_services;
MappingInfo m_comboPackages;
MappingInfo m_inventoryItems;
MappingInfo m_serviceBookings;
MappingInfo m_jobCards;
MappingInfo m_invoices;
MappingInfo m_payments;
MappingInfo m_serviceManagementObservers;
MappingInfo m_paymentManagementObservers;
MappingInfo m_inventoryManagementObservers;
util::Map<std::string, TrackedRecord<User>> m_userCache;
util::Map<std::string, TrackedRecord<Notification>> m_notificationCache;
util::Map<std::string, TrackedRecord<Service>> m_serviceCache;
util::Map<std::string, TrackedRecord<ComboPackage>> m_comboPackageCache;
util::Map<std::string, TrackedRecord<InventoryItem>> m_inventoryItemCache;
util::Map<std::string, TrackedRecord<ServiceBooking>> m_serviceBookingCache;
util::Map<std::string, TrackedRecord<JobCard>> m_jobCardCache;
util::Map<std::string, TrackedRecord<Invoice>> m_invoiceCache;
public:
static DataStore& getInstance();
bool initialize();
void shutdown();
util::Map<std::string, TrackedRecord<User>>& getUsers();
util::Map<std::string, TrackedRecord<Notification>>& getNotifications();
util::Map<std::string, TrackedRecord<Service>>& getServices();
util::Map<std::string, TrackedRecord<ComboPackage>>& getComboPackages();
util::Map<std::string, TrackedRecord<InventoryItem>>& getInventoryItems();
util::Map<std::string, TrackedRecord<ServiceBooking>>& getServiceBookings();
util::Map<std::string, TrackedRecord<JobCard>>& getJobCards();
util::Map<std::string, TrackedRecord<Invoice>>& getInvoices();
util::Map<std::string, User*> getServiceManagementObservers();
util::Map<std::string, User*> getPaymentManagementObservers();
util::Map<std::string, User*> getInventoryManagementObservers();
void saveUsers();
void saveNotifications();
void saveServices();
void saveComboPackages();
void saveInventoryItems();
void saveServiceBookings();
void saveJobCards();
void saveInvoices();
void saveServiceManagementObservers(util::Map<std::string, User*>& observers);
void savePaymentManagementObservers(util::Map<std::string, User*>& observers);
void saveInventoryManagementObservers(util::Map<std::string, User*>& observers);
bool lockDataStore();
bool unlockDataStore();
private:
template<typename TObject, typename TSerialized>
util::Map<std::string, TrackedRecord<TObject>> loadRecords(MappingInfo& mapping);
template<typename TObject, typename TSerialized>
void saveRecords(MappingInfo& mapping, util::Map<std::string, TrackedRecord<TObject>>& records);
template<typename TObject> void clearCache(util::Map<std::string, TrackedRecord<TObject>>&cache);
template<typename TObject> void refreshCache(util::Map<std::string, TrackedRecord<TObject>>&cache, util::Map<std::string, TrackedRecord<TObject>>&refreshedCache);
};
/*
Function: loadRecords
Description: Loads all serialized records from the specified
shared-memory mapping, deserializes them into
application objects, and returns them as a map
of tracked records. Each loaded record is marked
as CLEAN and assigned its corresponding slot index
within the mapping so that future modifications
can be written back efficiently.
Parameter:
- mapping: Reference to the mapping containing the
serialized records.
Return type:
util::Map<std::string, TrackedRecord<TObject>>
A map containing all loaded records keyed by
their unique identifier.
*/
template<typename TObject, typename TSerialized>
util::Map<std::string, TrackedRecord<TObject>> DataStore::loadRecords(MappingInfo& mapping)
{
util::Map<std::string, TrackedRecord<TObject>> records;
SharedMemory::ensureLatestMapping(mapping);
size_t recordCount = SharedMemory::getRecordCount(mapping);
for (size_t index = 0; index < recordCount; ++index)
{
TSerialized* serialized = static_cast<TSerialized*>(SharedMemory::getRecordAddress(mapping,index));
TObject* object = TObject::deserialize(*serialized);
TrackedRecord<TObject> trackedRecord;
trackedRecord.data = object;
trackedRecord.state = RecordState::CLEAN;
trackedRecord.slotIndex = index;
records.insert(object->getId(), trackedRecord);
}
return records;
}
/*
Function: saveRecords
Description: Persists all modified and newly added records
contained in the provided map to the specified
shared-memory mapping. Modified records overwrite
their existing slots, while new records are
appended to the end of the mapping. Records marked
as CLEAN are ignored.
Parameter:
- mapping: Reference to the mapping where records are
stored.
- records: Map containing the records to be persisted.
Return type: void
*/
template<typename TObject, typename TSerialized> void DataStore::saveRecords(MappingInfo& mapping, util::Map<std::string, TrackedRecord<TObject>>& records)
{
SharedMemory::ensureLatestMapping(mapping);
for (int index = 0; index < records.getSize(); ++index)
{
TrackedRecord<TObject>& record = records.getValueAt(index);
if (record.state == RecordState::CLEAN)
{
continue;
}
TSerialized serialized = record.data->serialize();
if (record.state == RecordState::MODIFIED)
{
TSerialized* destination = static_cast<TSerialized*>(SharedMemory::getRecordAddress(mapping, record.slotIndex));
if (destination)
{
*destination = serialized;
}
}
else if (record.state == RecordState::NEW_RECORD)
{
if (!SharedMemory::ensureCapacityForInsert(mapping))
{
continue;
}
size_t recordCount = SharedMemory::getRecordCount(mapping);
TSerialized* destination = static_cast<TSerialized*>(SharedMemory::getRecordAddress(mapping,recordCount));
*destination = serialized;
SharedMemory::setRecordCount(mapping, recordCount + 1);
record.slotIndex = recordCount;
}
record.state = RecordState::CLEAN;
}
}
/*
Function: clearCache
Description: Releases all objects owned by the cache and
clears the cache contents.
Parameters:
- cache: Cache to be cleared.
Returns:
- None
*/
template<typename TObject>
void DataStore::clearCache(util::Map<std::string, TrackedRecord<TObject>>&cache)
{
for (int index = 0; index < cache.getSize(); ++index)
{
delete cache.getValueAt(index).data;
cache.getValueAt(index).data = nullptr;
}
cache.clear();
}
/*
Function: refreshCache
Description: Refreshes the cache while preserving object addresses
for records that already exist. Existing objects are
updated in-place so that pointers held elsewhere remain
valid after the refresh.
Parameters:
- cache: Existing cache to refresh.
- refreshedCache: Newly loaded cache contents.
Returns:
- None
*/
template<typename TObject>
void DataStore::refreshCache(util::Map<std::string, TrackedRecord<TObject>>& cache, util::Map<std::string, TrackedRecord<TObject>>& refreshedCache)
{
util::Map<std::string, TrackedRecord<TObject>> oldCache = cache;
cache.clear();
for (int index = 0; index < refreshedCache.getSize(); ++index)
{
const std::string& id = refreshedCache.getKeyAt(index);
TrackedRecord<TObject>& refreshedRecord = refreshedCache.getValueAt(index);
int oldIndex = oldCache.find(id);
if (oldIndex != -1)
{
TrackedRecord<TObject>& oldRecord = oldCache.getValueAt(oldIndex);
*oldRecord.data = *refreshedRecord.data;
oldRecord.slotIndex = refreshedRecord.slotIndex;
oldRecord.state = refreshedRecord.state;
delete refreshedRecord.data;
refreshedRecord.data = oldRecord.data;
}
cache.insert(id, refreshedRecord);
}
for (int index = 0; index < oldCache.getSize(); ++index)
{
const std::string& id = oldCache.getKeyAt(index);
if (cache.find(id) == -1)
{
delete oldCache.getValueAt(index).data;
}
}
}
@@ -0,0 +1,17 @@
/*
File: FileHeader.h
Description: Defines the FileHeader structure used to store
metadata for binary record files, including
record count and capacity.
Author: Trenser
Created: 10-June-2026
*/
#pragma once
#include <cstddef>
struct FileHeader
{
size_t recordCount;
size_t capacity;
};
@@ -0,0 +1,29 @@
/*
File: MappingInfo.h
Description: Defines the MappingInfo structure used for
managing Windows file mapping operations.
Stores handles, mapped view pointer,
file metadata, and capacity information.
Author: Trenser
Created: 10-June-2026
*/
#pragma once
#include <windows.h>
#include <string>
struct MappingInfo
{
HANDLE fileHandle;
HANDLE mappingHandle;
void* mappedView;
std::string fileName;
size_t recordSize;
size_t mappedCapacity;
MappingInfo()
: fileHandle(NULL),
mappingHandle(NULL),
mappedView(nullptr),
recordSize(0),
mappedCapacity(0) {}
};
@@ -0,0 +1,17 @@
/*
File: RecordState.h
Description: Defines the RecordState enumeration used to
represent the state of a record in storage.
States include CLEAN, NEW_RECORD, and MODIFIED.
Author: Trenser
Created: 10-June-2026
*/
#pragma once
enum class RecordState : int
{
CLEAN,
NEW_RECORD,
MODIFIED
};
@@ -0,0 +1,109 @@
/*
File: SerializedRecords.h
Description: Defines serialized structures for persistent storage
and retrieval of system entities including User,
Notification, Service, ComboPackage, InventoryItem,
ServiceBooking, JobCard, Invoice, and Observer.
These structures use fixed-size character arrays
and primitive types for binary serialization.
Author: Trenser
Created: 10-June-2026
*/
#pragma once
#include "Utility.h"
#include "Enums.h"
#include "Timestamp.h"
struct SerializedUser
{
char id[64];
char username[64];
char password[64];
char name[128];
char phone[32];
char email[128];
util::UserType userType;
util::State status;
};
struct SerializedNotification
{
char id[64];
char recipientUserId[64];
char title[128];
char message[1024];
util::Timestamp createdAt;
util::State state;
};
struct SerializedService
{
char id[64];
char name[128];
char inventoryItemIDs[1024];
double laborCost;
util::State status;
};
struct SerializedComboPackage
{
char id[64];
char packageName[128];
double discountPercentage;
char serviceIDs[1024];
util::State status;
};
struct SerializedInventoryItem
{
char id[64];
char partName[128];
int quantity;
double price;
util::State status;
};
struct SerializedServiceBooking
{
char id[64];
util::ServiceJobStatus status;
char serviceIDs[1024];
char customerId[64];
char vehicleNumber[64];
char vehicleBrand[64];
char vehicleModel[64];
char assignedTechnicianId[64];
double discountPercentage;
};
struct SerializedJobCard
{
char id[64];
char bookingId[64];
char serviceId[64];
char technicianId[64];
util::Timestamp assignedDate;
util::ServiceJobStatus status;
util::Timestamp completionDate;
};
struct SerializedInvoice
{
char id[64];
char bookingId[64];
util::Timestamp invoiceDate;
char partIDs[1024];
double laborCost;
double partsCost;
double discountPercentage;
double totalAmount;
util::Timestamp paymentDate;
util::PaymentMode paymentMethod;
util::PaymentStatus status;
};
struct SerializedObserver
{
char id[64];
};
@@ -0,0 +1,385 @@
/*
File: SharedMemory.cpp
Description: Implements shared memory utilities for managing
Windows file mapping operations. Provides functions
to create, open, resize, and close mappings, as well
as access headers, records, and ensure synchronization
across processes.
Author: Trenser
Created: 11-June-2026
*/
#include "SharedMemory.h"
#include "Config.h"
/*
Function: invalidateMapping
Description: Releases all mapping resources and resets the mapping to an invalid state.
Parameters:
- mapping: MappingInfo&, mapping information and handles
Returns:
- None
*/
static void invalidateMapping(MappingInfo& mapping)
{
if (mapping.mappedView != nullptr)
{
UnmapViewOfFile(mapping.mappedView);
mapping.mappedView = nullptr;
}
if (mapping.mappingHandle != NULL)
{
CloseHandle(mapping.mappingHandle);
mapping.mappingHandle = NULL;
}
if (mapping.fileHandle != INVALID_HANDLE_VALUE)
{
CloseHandle(mapping.fileHandle);
mapping.fileHandle = INVALID_HANDLE_VALUE;
}
mapping.mappedCapacity = 0;
}
/*
Function: createOrOpenMapping
Description: Creates or opens a file mapping and maps it into the process address space.
Parameters:
- mapping: MappingInfo&, mapping information and handles
Returns:
- bool: True if the mapping was successfully created/opened, otherwise false
*/
bool SharedMemory::createOrOpenMapping(MappingInfo& mapping)
{
if (mapping.recordSize == 0)
{
return false;
}
mapping.fileHandle =
CreateFileA(
mapping.fileName.c_str(),
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (mapping.fileHandle == INVALID_HANDLE_VALUE)
{
return false;
}
LARGE_INTEGER fileSize;
if (!GetFileSizeEx(mapping.fileHandle, &fileSize))
{
invalidateMapping(mapping);
return false;
}
bool isNewFile = (fileSize.QuadPart == 0);
const size_t initialCapacity = config::file::INITIAL_CAPACITY;
if (isNewFile)
{
LARGE_INTEGER newSize;
newSize.QuadPart = sizeof(FileHeader) + initialCapacity * mapping.recordSize;
if (!SetFilePointerEx(mapping.fileHandle, newSize, NULL, FILE_BEGIN))
{
invalidateMapping(mapping);
return false;
}
if (!SetEndOfFile(mapping.fileHandle))
{
invalidateMapping(mapping);
return false;
}
}
mapping.mappingHandle =
CreateFileMappingA(
mapping.fileHandle,
NULL,
PAGE_READWRITE,
0,
0,
NULL);
if (mapping.mappingHandle == NULL)
{
invalidateMapping(mapping);
return false;
}
mapping.mappedView =
MapViewOfFile(
mapping.mappingHandle,
FILE_MAP_ALL_ACCESS,
0,
0,
0);
if (mapping.mappedView == nullptr)
{
invalidateMapping(mapping);
return false;
}
FileHeader* header = getHeader(mapping);
if (header == nullptr)
{
invalidateMapping(mapping);
return false;
}
if (isNewFile)
{
header->recordCount = 0;
header->capacity = initialCapacity;
}
mapping.mappedCapacity = header->capacity;
return true;
}
/*
Function: closeMapping
Description: Unmaps and closes all resources associated with a file mapping.
Parameters:
- mapping: MappingInfo&, mapping to close
Returns:
- None
*/
void SharedMemory::closeMapping(MappingInfo& mapping)
{
invalidateMapping(mapping);
}
/*
Function: getHeader
Description: Returns the file header stored at the beginning of the mapped memory region.
Parameters:
- mapping: MappingInfo&, mapping information and handles
Returns:
- FileHeader*: Pointer to the file header, or nullptr if the mapping is not valid
*/
FileHeader* SharedMemory::getHeader(MappingInfo& mapping)
{
if (mapping.mappedView == nullptr)
{
return nullptr;
}
return reinterpret_cast<FileHeader*>(mapping.mappedView);
}
/*
Function: getRecordAddress
Description: Returns the address of a record at the specified index within the mapped memory region.
Parameters:
- mapping: MappingInfo&, mapping information and handles
- index: size_t, record index
Returns:
- void*: Pointer to the record, or nullptr if the mapping is not valid
*/
void* SharedMemory::getRecordAddress(MappingInfo& mapping, size_t index)
{
if (mapping.mappedView == nullptr)
{
return nullptr;
}
return reinterpret_cast<char*>(mapping.mappedView) + sizeof(FileHeader) + index * mapping.recordSize;
}
/*
Function: getRecordCount
Description: Returns the number of records currently stored in the mapping.
Parameters:
- mapping: MappingInfo&, mapping information and handles
Returns:
- size_t: Number of records in the mapping
*/
size_t SharedMemory::getRecordCount(MappingInfo& mapping)
{
FileHeader* header = getHeader(mapping);
if (header == nullptr)
{
return 0;
}
return header->recordCount;
}
/*
Function: setRecordCount
Description: Updates the number of records stored in the mapping.
Parameters:
- mapping: MappingInfo&, mapping information and handles
- count: size_t, new record count
Returns:
- None
*/
void SharedMemory::setRecordCount(MappingInfo& mapping, size_t count)
{
FileHeader* header = getHeader(mapping);
if (header == nullptr)
{
return;
}
header->recordCount = count;
}
/*
Function: getCapacity
Description: Returns the current capacity of the mapping.
Parameters:
- mapping: MappingInfo&, mapping information and handles
Returns:
- size_t: Maximum number of records that can be stored in the mapping
*/
size_t SharedMemory::getCapacity(MappingInfo& mapping)
{
FileHeader* header = getHeader(mapping);
if (header == nullptr)
{
return 0;
}
return header->capacity;
}
/*
Function: resizeMapping
Description: Resizes the file mapping to the specified capacity.
Parameters:
- mapping: MappingInfo&, mapping information and handles
- newCapacity: size_t, new mapping capacity
Returns:
- bool: True if the resize succeeded, otherwise false
*/
bool SharedMemory::resizeMapping(MappingInfo& mapping, size_t newCapacity)
{
FileHeader* header = getHeader(mapping);
if (header == nullptr)
{
invalidateMapping(mapping);
return false;
}
header->capacity = newCapacity;
if (!FlushViewOfFile(mapping.mappedView, sizeof(FileHeader)))
{
return false;
}
if (!UnmapViewOfFile(mapping.mappedView))
{
return false;
}
mapping.mappedView = nullptr;
CloseHandle(mapping.mappingHandle);
mapping.mappingHandle = NULL;
LARGE_INTEGER newSize;
newSize.QuadPart = sizeof(FileHeader) + newCapacity * mapping.recordSize;
if (!SetFilePointerEx(mapping.fileHandle, newSize, NULL, FILE_BEGIN))
{
invalidateMapping(mapping);
return false;
}
if (!SetEndOfFile(mapping.fileHandle))
{
invalidateMapping(mapping);
return false;
}
mapping.mappingHandle =
CreateFileMappingA(
mapping.fileHandle,
NULL,
PAGE_READWRITE,
0,
0,
NULL);
if (mapping.mappingHandle == NULL)
{
invalidateMapping(mapping);
return false;
}
mapping.mappedView =
MapViewOfFile(
mapping.mappingHandle,
FILE_MAP_ALL_ACCESS,
0,
0,
0);
if (mapping.mappedView == nullptr)
{
invalidateMapping(mapping);
return false;
}
mapping.mappedCapacity = newCapacity;
return true;
}
/*
Function: ensureCapacityForInsert
Description: Ensures that the mapping has space for at least one additional record, growing it if necessary.
Parameters:
- mapping: MappingInfo&, mapping information and handles
Returns:
- bool: True if capacity is available, otherwise false
*/
bool SharedMemory::ensureCapacityForInsert(MappingInfo& mapping)
{
size_t recordCount = getRecordCount(mapping);
size_t capacity = getCapacity(mapping);
if (recordCount < capacity)
{
return true;
}
return resizeMapping(mapping, capacity * 2);
}
/*
Function: ensureLatestMapping
Description: Remaps the file if another process has resized it.
Parameters:
- mapping: MappingInfo&, mapping information and handles
Returns:
- bool: True if the mapping is valid and up to date, otherwise false
*/
bool SharedMemory::ensureLatestMapping(MappingInfo& mapping)
{
FileHeader* header = getHeader(mapping);
if (header == nullptr)
{
return false;
}
if (header->capacity == mapping.mappedCapacity)
{
return true;
}
if (!UnmapViewOfFile(mapping.mappedView))
{
invalidateMapping(mapping);
return false;
}
mapping.mappedView = nullptr;
CloseHandle(mapping.mappingHandle);
mapping.mappingHandle = NULL;
mapping.mappingHandle =
CreateFileMappingA(
mapping.fileHandle,
NULL,
PAGE_READWRITE,
0,
0,
NULL);
if (mapping.mappingHandle == NULL)
{
invalidateMapping(mapping);
return false;
}
mapping.mappedView =
MapViewOfFile(
mapping.mappingHandle,
FILE_MAP_ALL_ACCESS,
0,
0,
0);
if (mapping.mappedView == nullptr)
{
invalidateMapping(mapping);
return false;
}
header = getHeader(mapping);
if (header == nullptr)
{
invalidateMapping(mapping);
return false;
}
mapping.mappedCapacity = header->capacity;
return true;
}
@@ -0,0 +1,29 @@
/*
File: SharedMemory.h
Description: Declares functions for managing Windows file
mapping and shared memory operations. Provides
utilities for creating, resizing, and closing
mappings, as well as accessing headers and
record data.
Author: Trenser
Created: 10-June-2026
*/
#pragma once
#include <cstddef>
#include "MappingInfo.h"
#include "FileHeader.h"
namespace SharedMemory
{
bool createOrOpenMapping(MappingInfo& mapping);
void closeMapping(MappingInfo& mapping);
bool ensureLatestMapping(MappingInfo& mapping);
bool resizeMapping(MappingInfo& mapping, size_t newCapacity);
FileHeader* getHeader(MappingInfo& mapping);
void* getRecordAddress(MappingInfo& mapping, size_t index);
size_t getRecordCount(MappingInfo& mapping);
void setRecordCount(MappingInfo& mapping, size_t count);
size_t getCapacity(MappingInfo& mapping);
bool ensureCapacityForInsert(MappingInfo& mapping);
};
@@ -0,0 +1,33 @@
/*
File: TrackedRecord.h
Description: Defines the TrackedRecord template structure used
to manage objects with associated record state and
slot index. Supports tracking of CLEAN, NEW_RECORD,
and MODIFIED states for persistence and synchronization.
Author: Trenser
Created: 10-June-2026
*/
#pragma once
#include "RecordState.h"
static const size_t INVALID_SLOT = static_cast<size_t>(-1);
template<typename T>
struct TrackedRecord
{
T* data;
RecordState state;
size_t slotIndex;
TrackedRecord()
: data(nullptr),
state(RecordState::CLEAN),
slotIndex(INVALID_SLOT) {}
TrackedRecord(
T* object,
RecordState recordState,
size_t slot)
: data(object),
state(recordState),
slotIndex(slot) {}
};
@@ -6,6 +6,7 @@ Description: Header file declaring the UserManagementService class, which manage
Author: Trenser
Date:19-May-2026
*/
#pragma once
#include <string>
#include "Map.h"
@@ -28,16 +28,18 @@ namespace config
namespace file
{
constexpr const char* INVENTORYITEM_FILE = "files/InventoryItem.csv";
constexpr const char* USER_FILE = "files/User.csv";
constexpr const char* NOTIFICATION_FILE = "files/Notification.csv";
constexpr const char* SERVICE_FILE = "files/Service.csv";
constexpr const char* COMBOPACKAGE_FILE = "files/ComboPackage.csv";
constexpr const char* SERVICEBOOKING_FILE = "files/ServiceBooking.csv";
constexpr const char* JOBCARD_FILE = "files/JobCard.csv";
constexpr const char* INVOICE_FILE = "files/Invoice.csv";
constexpr const char* SERVICEMANAGEMENTOBSERVERS = "files/ServiceManagementObservers.csv";
constexpr const char* PAYMENTMANAGEMENTOBSERVERS = "files/PaymentManagementObservers.csv";
constexpr const char* INVENTORYMANAGEMENTOBSERVERS = "files/InventoryManagementObservers.csv";
const size_t INITIAL_CAPACITY = 100;
constexpr const char* DIRECTORY = "files/";
constexpr const char* INVENTORYITEM_FILE = "files/InventoryItem.dat";
constexpr const char* USER_FILE = "files/User.dat";
constexpr const char* NOTIFICATION_FILE = "files/Notification.dat";
constexpr const char* SERVICE_FILE = "files/Service.dat";
constexpr const char* COMBOPACKAGE_FILE = "files/ComboPackage.dat";
constexpr const char* SERVICEBOOKING_FILE = "files/ServiceBooking.dat";
constexpr const char* JOBCARD_FILE = "files/JobCard.dat";
constexpr const char* INVOICE_FILE = "files/Invoice.dat";
constexpr const char* SERVICEMANAGEMENTOBSERVERS = "files/ServiceManagementObservers.dat";
constexpr const char* PAYMENTMANAGEMENTOBSERVERS = "files/PaymentManagementObservers.dat";
constexpr const char* INVENTORYMANAGEMENTOBSERVERS = "files/InventoryManagementObservers.dat";
}
}
@@ -12,28 +12,28 @@ Date: 19-May-2026
namespace util
{
enum class UserType
enum class UserType : int
{
ADMIN,
TECHNICIAN,
CUSTOMER
};
enum class PaymentMode
enum class PaymentMode : int
{
ONLINE,
OFFLINE,
NOTSET
};
enum class PaymentStatus
enum class PaymentStatus : int
{
PENDING,
COMPLETED,
PAID
};
enum class ServiceJobStatus
enum class ServiceJobStatus : int
{
PENDING,
STARTED,
@@ -42,7 +42,7 @@ namespace util
CANCELLED
};
enum class State
enum class State : int
{
ACTIVE,
INACTIVE
@@ -106,4 +106,4 @@ namespace util
file << records[index] << '\n';
}
}
}
}
@@ -10,6 +10,7 @@
#include <limits>
#include <string>
#include <stdexcept>
#include <conio.h>
namespace util
{
@@ -54,6 +55,48 @@ namespace util
value = cleanedValue;
}
/*
* Function: readPassword
* Description: Reads a password from console without echoing characters;
* displays '*' for each character typed, handles backspace,
* and cleans commas from the result.
* Parameters:
* value - reference to a string where the password will be stored
* Returns:
* void - no return value
*/
inline void readPassword(std::string& value)
{
value.clear();
char currentCharacter;
while ((currentCharacter = _getch()) != '\r')
{
if (currentCharacter == '\b')
{
if (!value.empty())
{
value.pop_back();
std::cout << "\b \b";
}
}
else
{
value += currentCharacter;
std::cout << '*';
}
}
std::cout << std::endl;
std::string cleanedValue;
for (int iterator = 0; iterator < value.length(); iterator++)
{
if (value[iterator] != ',')
{
cleanedValue += value[iterator];
}
}
value = cleanedValue;
}
/*
* Function: pressEnter
* Description: Pauses execution until the user presses Enter.
@@ -99,4 +99,80 @@ namespace util
auto observerIDs = service->getObserverIDs();
util::saveRecords(filePath, observerIDs);
}
template<typename TObject>
Map<std::string, TObject*> getObjects(const Map<std::string, TrackedRecord<TObject>>& trackedRecords);
template<typename TObject>
Map<std::string, const TObject*> getConstObjects(const Map<std::string, TrackedRecord<TObject>>& trackedRecords);
template<typename TObject>
TrackedRecord<TObject> createNewRecord(TObject* object);
}
/*
Function: getObjects
Description: Extracts the object pointers from a tracked-record
collection and returns them as a map keyed by the
same identifiers.
Parameters:
- trackedRecords: Collection of tracked records.
Returns:
- Map<std::string, TObject*>: Collection of object pointers.
*/
template<typename TObject>
util::Map<std::string, TObject*> util::getObjects(const util::Map<std::string, TrackedRecord<TObject>>& trackedRecords)
{
util::Map<std::string, TObject*> objects;
for (int index = 0; index < trackedRecords.getSize(); ++index)
{
const std::string& key = trackedRecords.getKeyAt(index);
TObject* object = trackedRecords.getValueAt(index).data;
objects.insert(key, object);
}
return objects;
}
/*
Function: getConstObjects
Description: Extracts the object pointers from a tracked-record
collection and returns them as a read-only map
keyed by the same identifiers.
Parameters:
- trackedRecords: Collection of tracked records.
Returns:
- Map<std::string, const TObject*>:
Collection of read-only object pointers.
*/
template<typename TObject>
util::Map<std::string, const TObject*> util::getConstObjects(
const util::Map<std::string, TrackedRecord<TObject>>& trackedRecords)
{
util::Map<std::string, const TObject*> objects;
for (int index = 0; index < trackedRecords.getSize(); ++index)
{
const std::string& key = trackedRecords.getKeyAt(index);
const TObject* object = trackedRecords.getValueAt(index).data;
objects.insert(key, object);
}
return objects;
}
/*
Function: createNewRecord
Description: Creates a tracked record for a newly created
object. The record is initialized with
NEW_RECORD state.
Parameters:
- object: Pointer to the newly created object.
Returns:
- TrackedRecord<TObject>: Initialized tracked record.
*/
template<typename TObject>
TrackedRecord<TObject> util::createNewRecord(TObject* object)
{
TrackedRecord<TObject> record;
record.data = object;
record.state = RecordState::NEW_RECORD;
return record;
}
@@ -30,7 +30,6 @@ Description: Displays the customer menu and handles user input until logout is s
Parameter: None
Return type: void
*/
void CustomerMenu::showMenu()
{
while (true)
@@ -914,7 +914,7 @@ inline void changePasswordHelper(Controller& controller)
util::clear();
std::cout << "Change Password\n";
std::cout << "Enter new password: ";
util::read(newPassword);
util::readPassword(newPassword);
if (!util::isPasswordValid(newPassword))
{
std::cout << "Error: Password is not strong enough!\n";
@@ -928,7 +928,7 @@ inline void changePasswordHelper(Controller& controller)
continue;
}
std::cout << "Confirm new password: ";
util::read(confirmedPassword);
util::readPassword(confirmedPassword);
if (confirmedPassword != newPassword)
{
std::cout << "Passwords are different. Try again\n";
@@ -22,4 +22,4 @@ public:
void viewNotifications();
void logout();
void changePassword();
};
};
@@ -106,7 +106,7 @@ void UserInterface::login()
std::cout << "Enter username: ";
util::read(username);
std::cout << "Enter password: ";
util::read(password);
util::readPassword(password);
if (m_controller.login(username, password))
{
const User* authenticatedUser = m_controller.getAuthenticatedUser();
@@ -167,7 +167,7 @@ void UserInterface::registerCustomer()
return;
}
std::cout << "Enter password: ";
util::read(password);
util::readPassword(password);
if (!util::isPasswordValid(password))
{
std::cout << "Error: Password is invalid!";
@@ -185,4 +185,4 @@ void UserInterface::registerCustomer()
m_controller.createCustomer(username, name, password, email, phone);
std::cout << "Registration is successful";
util::pressEnter();
}
}