AttachmentDataStore Class Reference

Manages temporary storage of attachment data using a singleton pattern. More...

#include <attachment_data_store.h>

Collaboration diagram for AttachmentDataStore:

Public Member Functions
QString	GetAttachmentData (const QString &attachment_id)
	Retrieves the base64-encoded attachment data associated with a given ID. This operation is thread-safe.
void	RemoveAttachmentData (const QString &attachment_id)
	Removes the attachment data associated with the given ID from the store. Used to free up memory once the attachment data is no longer needed. This operation is thread-safe.
QString	StoreAttachmentData (const QString &base64_data)
	Stores base64-encoded attachment data and returns a unique ID. Generates a UUID for the attachment and stores the data in the internal map. This operation is thread-safe.

Static Public Member Functions
static AttachmentDataStore *	GetInstance ()
	Gets the singleton instance of the AttachmentDataStore.

Private Member Functions
	AttachmentDataStore ()=default
	Private default constructor to enforce the singleton pattern.
	AttachmentDataStore (const AttachmentDataStore &)=delete
	Deleted copy constructor to prevent copying.
AttachmentDataStore &	operator= (const AttachmentDataStore &)=delete
	Deleted assignment operator to prevent assignment.

Private Attributes
QMap< QString, QString >	attachment_data_ {}
	Map storing the attachment data. Key: Attachment ID (QString UUID). Value: Base64-encoded attachment data (QString).
QMutex	mutex_ {}
	Mutex ensuring thread-safe access to the attachment_data_ map.

Detailed Description

Manages temporary storage of attachment data using a singleton pattern.

This class provides a thread-safe, in-memory store for holding base64-encoded attachment data associated with unique IDs. It's used to temporarily hold attachment content before it's fully processed or sent.

Constructor & Destructor Documentation

AttachmentDataStore() [1/2]

AttachmentDataStore::AttachmentDataStore ( )

privatedefault

Private default constructor to enforce the singleton pattern.

Here is the caller graph for this function:

AttachmentDataStore() [2/2]

AttachmentDataStore::AttachmentDataStore ( const AttachmentDataStore & )

privatedelete

Deleted copy constructor to prevent copying.

Here is the call graph for this function:

Member Function Documentation

GetAttachmentData()

QString AttachmentDataStore::GetAttachmentData

(

const QString &

attachment_id

)

Retrieves the base64-encoded attachment data associated with a given ID. This operation is thread-safe.

Parameters

attachment_id

The unique identifier of the attachment data to retrieve.

Returns

The base64-encoded QString data if the ID exists, otherwise an empty QString.

Here is the caller graph for this function:

GetInstance()

static AttachmentDataStore * AttachmentDataStore::GetInstance ( )

inlinestatic

Gets the singleton instance of the AttachmentDataStore.

Returns

Pointer to the singleton AttachmentDataStore instance.

Here is the call graph for this function:

Here is the caller graph for this function:

operator=()

AttachmentDataStore & AttachmentDataStore::operator= ( const AttachmentDataStore & )

privatedelete

Deleted assignment operator to prevent assignment.

Here is the call graph for this function:

RemoveAttachmentData()

void AttachmentDataStore::RemoveAttachmentData

(

const QString &

attachment_id

)

Removes the attachment data associated with the given ID from the store. Used to free up memory once the attachment data is no longer needed. This operation is thread-safe.

Parameters

attachment_id

The unique identifier of the attachment data to remove.

StoreAttachmentData()

QString AttachmentDataStore::StoreAttachmentData

(

const QString &

base64_data

)

Stores base64-encoded attachment data and returns a unique ID. Generates a UUID for the attachment and stores the data in the internal map. This operation is thread-safe.

Parameters

base64_data

The attachment data encoded as a base64 QString.

Returns

A unique QString identifier (UUID without braces) for the stored data.

Here is the caller graph for this function:

Member Data Documentation

attachment_data_

QMap<QString, QString> AttachmentDataStore::attachment_data_ {}

private

Map storing the attachment data. Key: Attachment ID (QString UUID). Value: Base64-encoded attachment data (QString).

mutex_

QMutex AttachmentDataStore::mutex_ {}

private

Mutex ensuring thread-safe access to the attachment_data_ map.

---

The documentation for this class was generated from the following files:

• src/chat/files/attachments/attachment_data_store.h
• src/chat/files/attachments/attachment_data_store.cpp