QGIS/src/server/qgsserviceregistry.h

118 lines
3.6 KiB
C++

/***************************************************************************
qgsserviceregistry.h
Class defining the service manager for QGIS server services.
-------------------
begin : 2016-12-05
copyright : (C) 2016 by David Marteau
email : david dot marteau at 3liz dot com
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef QGSSERVICEREGISTRY_H
#define QGSSERVICEREGISTRY_H
#include "qgsconfig.h"
#include "qgis.h"
#include <QHash>
#include <QString>
#include "qgsservicenativeloader.h"
#include <memory>
class QgsService;
class QgsServerInterface;
/**
* \ingroup server
* QgsServiceRegistry
* Class defining the registry manager for QGIS server services
*
* This class provides methods for registering and retrieving
* services.
*
* IMPORTANT: The registry hold ownership of registered services and
* will call 'delete' on cleanup
*
* \since QGIS 3.0
*/
class SERVER_EXPORT QgsServiceRegistry
{
public:
//! Constructor
QgsServiceRegistry() = default;
//! Destructor
~QgsServiceRegistry();
/**
* Retrieve a service from its name
* \param name the name of the service
* \param version the version string (optional)
* \returns QgsService
*
* If the version is not provided the higher version of the service is returned
*/
QgsService *getService( const QString &name, const QString &version = QString() );
/**
* Register a service by its name and version
*
* This method is intended to be called by modules for registering
* services. A module may register multiple services.
*
* The registry gain ownership of services and will call 'delete' on cleanup
*
* \param service a QgsServerResponse to be registered
*/
void registerService( QgsService *service SIP_TRANSFER );
/**
* Unregister service from its name and version
*
* \param name the tame of the service
* \param version (optional) the specific version to unload
* \returns the number of services unregistered
*
* If the version is not specified then all versions from the specified service
* are unloaded
*/
int unregisterService( const QString &name, const QString &version = QString() );
/**
* Initialize registry, load modules and auto register services
* \param serverIface the server interface
* \param nativeModulepath the native module path
*/
void init( const QString &nativeModulepath, QgsServerInterface *serverIface = nullptr );
/**
* Clean up registered service and unregister modules
*/
void cleanUp();
private:
// XXX consider using QMap because of the few numbers of
// elements to handle
typedef QHash<QString, std::shared_ptr<QgsService> > ServiceTable;
typedef QHash<QString, QPair<QString, QString> > VersionTable;
QgsServiceNativeLoader mNativeLoader;
ServiceTable mServices;
VersionTable mVersions;
};
#endif