rssguard/src/librssguard/services/abstract/cacheforserviceroot.h

64 lines
2.2 KiB
C++

// For license of this file, see <project-root-folder>/LICENSE.md.
#ifndef CACHEFORSERVICEROOT_H
#define CACHEFORSERVICEROOT_H
#include "services/abstract/serviceroot.h"
#include <QMap>
#include <QMutex>
#include <QPair>
#include <QStringList>
struct RSSGUARD_DLLSPEC CacheSnapshot {
QMap<QString, QStringList> m_cachedLabelAssignments;
QMap<QString, QStringList> m_cachedLabelDeassignments;
QMap<RootItem::ReadStatus, QStringList> m_cachedStatesRead;
QMap<RootItem::Importance, QList<Message>> m_cachedStatesImportant;
};
class RSSGUARD_DLLSPEC CacheForServiceRoot {
public:
explicit CacheForServiceRoot();
virtual ~CacheForServiceRoot();
virtual void saveAllCachedData(bool ignore_errors) = 0;
void addLabelsAssignmentsToCache(const QStringList& ids_of_messages, const QString& lbl_custom_id, bool assign);
void addLabelsAssignmentsToCache(const QList<Message>& ids_of_messages, Label* lbl, bool assign);
void addMessageStatesToCache(const QList<Message>& ids_of_messages, RootItem::Importance importance);
void addMessageStatesToCache(const QStringList& ids_of_messages, RootItem::ReadStatus read);
void loadCacheFromFile();
void setUniqueId(int unique_id);
bool isEmpty() const;
protected:
// Returns all cached data and clears the cache.
// NOTE: If returned data are not successfuly passed back to
// server then caller needs to re-add the data back to cache.
CacheSnapshot takeMessageCache();
private:
void clearCache();
void saveCacheToFile();
int m_uniqueId;
QScopedPointer<QMutex> m_cacheSaveMutex;
// Map where key is label's custom ID and value is list of message custom IDs
// which we want to assign to the label.
QMap<QString, QStringList> m_cachedLabelAssignments;
// Map where key is label's custom ID and value is list of message custom IDs
// which we want to remove from the label assignment.
QMap<QString, QStringList> m_cachedLabelDeassignments;
// Map of cached read/unread changes.
QMap<RootItem::ReadStatus, QStringList> m_cachedStatesRead;
// Map of cached important/unimportant changes.
QMap<RootItem::Importance, QList<Message>> m_cachedStatesImportant;
};
#endif // CACHEFORSERVICEROOT_H