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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "sqlitedatabase.h"
#include "sqlitereadwritestatement.h"
#include "sqlitesessions.h"
#include "sqlitetable.h"
#include "sqlitetransaction.h"
#include <QFileInfo>
#include <chrono>
using namespace std::chrono_literals;
namespace Sqlite {
class Database::Statements
{
public:
Statements(Database &database)
: database(database)
{}
public:
Database &database;
ReadWriteStatement<> deferredBegin{"BEGIN", database};
ReadWriteStatement<> immediateBegin{"BEGIN IMMEDIATE", database};
ReadWriteStatement<> exclusiveBegin{"BEGIN EXCLUSIVE", database};
ReadWriteStatement<> commitBegin{"COMMIT", database};
ReadWriteStatement<> rollbackBegin{"ROLLBACK", database};
Sessions sessions{database, "main", "databaseSessions"};
};
Database::Database()
: m_databaseBackend(*this)
{
}
Database::Database(Utils::PathString databaseFilePath, JournalMode journalMode, LockingMode lockingMode)
: Database{std::move(databaseFilePath), 0ms, journalMode, lockingMode}
{}
Database::Database(Utils::PathString databaseFilePath,
std::chrono::milliseconds busyTimeout,
JournalMode journalMode,
LockingMode lockingMode)
: m_databaseBackend(*this)
, m_busyTimeout(busyTimeout)
{
std::lock_guard lock{*this};
setJournalMode(journalMode);
open(std::move(databaseFilePath), lockingMode);
#ifdef SQLITE_REVERSE
if (std::rand() % 2)
execute("PRAGMA reverse_unordered_selects=1");
#endif
}
Database::~Database() = default;
void Database::activateLogging()
{
DatabaseBackend::activateLogging();
}
void Database::open(LockingMode lockingMode)
{
m_databaseBackend.open(m_databaseFilePath, m_openMode);
if (m_busyTimeout > 0ms)
m_databaseBackend.setBusyTimeout(m_busyTimeout);
else
m_databaseBackend.registerBusyHandler();
m_databaseBackend.setLockingMode(lockingMode);
m_databaseBackend.setJournalMode(m_journalMode);
registerTransactionStatements();
m_isOpen = true;
}
void Database::open(Utils::PathString &&databaseFilePath, LockingMode lockingMode)
{
m_isInitialized = QFileInfo::exists(QString(databaseFilePath));
setDatabaseFilePath(std::move(databaseFilePath));
open(lockingMode);
}
void Database::close()
{
m_isOpen = false;
deleteTransactionStatements();
m_databaseBackend.close();
}
bool Database::isInitialized() const
{
return m_isInitialized;
}
void Database::setIsInitialized(bool isInitialized)
{
m_isInitialized = isInitialized;
}
bool Database::isOpen() const
{
return m_isOpen;
}
void Database::setDatabaseFilePath(Utils::PathString databaseFilePath)
{
m_databaseFilePath = std::move(databaseFilePath);
}
void Database::setAttachedTables(const Utils::SmallStringVector &tables)
{
m_statements->sessions.setAttachedTables(tables);
}
void Database::applyAndUpdateSessions()
{
m_statements->sessions.applyAndUpdateSessions();
}
SessionChangeSets Database::changeSets() const
{
return m_statements->sessions.changeSets();
}
const Utils::PathString &Database::databaseFilePath() const
{
return m_databaseFilePath;
}
void Database::setJournalMode(JournalMode journalMode)
{
m_journalMode = journalMode;
}
JournalMode Database::journalMode() const
{
return m_journalMode;
}
LockingMode Database::lockingMode() const
{
return m_databaseBackend.lockingMode();
}
void Database::setOpenMode(OpenMode openMode)
{
m_openMode = openMode;
}
OpenMode Database::openMode() const
{
return m_openMode;
}
void Database::execute(Utils::SmallStringView sqlStatement)
{
m_databaseBackend.execute(sqlStatement);
}
void Database::registerTransactionStatements()
{
m_statements = std::make_unique<Statements>(*this);
}
void Database::deleteTransactionStatements()
{
m_statements.reset();
}
void Database::deferredBegin()
{
m_statements->deferredBegin.execute();
}
void Database::immediateBegin()
{
m_statements->immediateBegin.execute();
}
void Database::exclusiveBegin()
{
m_statements->exclusiveBegin.execute();
}
void Database::commit()
{
m_statements->commitBegin.execute();
}
void Database::rollback()
{
m_statements->rollbackBegin.execute();
}
void Database::immediateSessionBegin()
{
m_statements->immediateBegin.execute();
m_statements->sessions.create();
}
void Database::sessionCommit()
{
m_statements->sessions.commit();
m_statements->commitBegin.execute();
}
void Database::sessionRollback()
{
m_statements->sessions.rollback();
m_statements->rollbackBegin.execute();
}
DatabaseBackend &Database::backend()
{
return m_databaseBackend;
}
} // namespace Sqlite
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