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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtAddOn.JsonDb module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef DBSERVER_H
#define DBSERVER_H
#include <QObject>
#include <QVariant>
#include <QAbstractSocket>
#include "clientjsonstream.h"
#include "jsondbnotification.h"
#include "jsondbpartition.h"
#include "jsondbpartitionspec.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
class QIODevice;
class QLocalServer;
class QTcpServer;
QT_END_NAMESPACE
class JsonDbEphemeralPartition;
QT_USE_NAMESPACE_JSONDB_PARTITION
class DBServer : public QObject
{
Q_OBJECT
public:
DBServer(const QString &searchPath, QObject *parent = 0);
~DBServer();
void setTcpServerPort(quint16 port) { mTcpServerPort = port; }
quint16 tcpServerPort() const { return mTcpServerPort; }
bool start();
bool socket();
bool clear();
void close();
inline bool compactOnClose() const { return mCompactOnClose; }
inline void setCompactOnClose(bool compact) { mCompactOnClose = compact; }
public slots:
void sigTERM();
void sigHUP();
void sigINT();
void sigUSR1();
protected slots:
void handleConnection();
void handleTcpConnection();
void receiveMessage(const QJsonObject &document);
void handleConnectionError();
void removeConnection();
private:
bool loadPartitions();
void reduceMemoryUsage();
void closeIndexes();
JsonDbStat stat() const;
void processWrite(ClientJsonStream *stream, JsonDbOwner *owner, const JsonDbObjectList &objects, JsonDbPartition::ConflictResolutionMode mode, const QString &partitionName, int id);
void processRead(ClientJsonStream *stream, JsonDbOwner *owner, const QJsonValue &object, const QString &partitionName, int id);
void processChangesSince(ClientJsonStream *stream, JsonDbOwner *owner, const QJsonValue &object, const QString &partitionName, int id);
void processFlush(ClientJsonStream *stream, JsonDbOwner *owner, const QString &partitionName, int id);
void processLog(ClientJsonStream *stream, const QString &message, int id);
void debugQuery(const QString partitionName, const JsonDbQuery &query, int limit, int offset, const JsonDbQueryResult &result);
JsonDbObjectList prepareWriteData(const QString &action, const QJsonValue &object);
JsonDbObjectList checkForNotifications(const JsonDbObjectList &objects);
void createNotification(const JsonDbObject &object, ClientJsonStream *stream);
void removeNotification(const JsonDbObject &object, ClientJsonStream *stream);
JsonDbError::ErrorCode validateNotification(const JsonDbObject ¬ificationDef, QString &message);
void removeNotificationsByPartition(JsonDbPartition *partition);
void enableNotificationsByPartition(JsonDbPartition *partition);
JsonDbPartition* findPartition(const QString &partitionName);
QList<JsonDbPartitionSpec> findPartitionDefinitions() const;
void updatePartitionDefinition(JsonDbPartition *partition, bool remove = false, bool isDefault = false);
JsonDbOwner *getOwner(ClientJsonStream *stream);
JsonDbOwner *createDummyOwner(ClientJsonStream *stream);
void sendError(ClientJsonStream *stream, JsonDbError::ErrorCode code,
const QString& message, int id);
QHash<QString, JsonDbPartition *> mPartitions;
JsonDbPartition *mDefaultPartition;
JsonDbEphemeralPartition *mEphemeralPartition;
quint16 mTcpServerPort;
QLocalServer *mServer;
QTcpServer *mTcpServer;
QMap<QIODevice*, ClientJsonStream *> mConnections;
JsonDbOwner *mOwner;
// per connection owner info
class OwnerInfo {
public:
OwnerInfo() : owner(0), pid(0) {}
JsonDbOwner *owner;
int pid;
QString processName;
};
QMap<QIODevice*,OwnerInfo> mOwners;
bool mCompactOnClose;
};
QT_END_HEADER
#endif // DBSERVER_H
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