106 строки
3.4 KiB
C++
106 строки
3.4 KiB
C++
/******************************************************************************
|
|
*
|
|
* Project: WMS Client Driver
|
|
* Purpose: WMSMiniDriverManager implementation.
|
|
* Author: Adam Nowacki, nowak@xpam.de
|
|
*
|
|
******************************************************************************
|
|
*
|
|
* Copyright (c) 2007, Adam Nowacki
|
|
* 2016, Lucian Plesea
|
|
*
|
|
* A single global MiniDriverManager exists, containing factories for all
|
|
*possible types of WMS minidrivers. Minidriver object factories get registered
|
|
*in wmsdriver.cpp, during the WMS driver registration with GDAL
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included
|
|
* in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
****************************************************************************/
|
|
|
|
#include "wmsdriver.h"
|
|
|
|
class WMSMiniDriverManager
|
|
{
|
|
public:
|
|
WMSMiniDriverManager()
|
|
{
|
|
}
|
|
~WMSMiniDriverManager()
|
|
{
|
|
erase();
|
|
}
|
|
|
|
public:
|
|
void Register(WMSMiniDriverFactory *mdf);
|
|
// Clean up the minidriver factories
|
|
void erase();
|
|
WMSMiniDriverFactory *Find(const CPLString &name);
|
|
|
|
protected:
|
|
std::vector<WMSMiniDriverFactory *> m_mdfs;
|
|
};
|
|
|
|
// Called by WMS driver deregister, also by destructor
|
|
void WMSMiniDriverManager::erase()
|
|
{
|
|
for (size_t i = 0; i < m_mdfs.size(); i++)
|
|
delete m_mdfs[i];
|
|
m_mdfs.clear();
|
|
}
|
|
|
|
WMSMiniDriverFactory *WMSMiniDriverManager::Find(const CPLString &name)
|
|
{
|
|
for (size_t i = 0; i < m_mdfs.size(); i++)
|
|
if (EQUAL(name.c_str(), m_mdfs[i]->m_name))
|
|
return m_mdfs[i];
|
|
return nullptr;
|
|
}
|
|
|
|
void WMSMiniDriverManager::Register(WMSMiniDriverFactory *mdf)
|
|
{
|
|
// Prevent duplicates
|
|
if (!Find(mdf->m_name))
|
|
m_mdfs.push_back(mdf);
|
|
else // Register takes ownership of factories, so it removes the duplicate
|
|
delete mdf;
|
|
}
|
|
|
|
// global object containing minidriver factories
|
|
static WMSMiniDriverManager g_mini_driver_manager;
|
|
|
|
// If a matching factory is found in the global minidriver manager, it returns a
|
|
// new minidriver object
|
|
WMSMiniDriver *NewWMSMiniDriver(const CPLString &name)
|
|
{
|
|
const WMSMiniDriverFactory *factory = g_mini_driver_manager.Find(name);
|
|
if (factory == nullptr)
|
|
return nullptr;
|
|
return factory->New();
|
|
}
|
|
|
|
// Registers a minidriver factory with the global minidriver manager
|
|
void WMSRegisterMiniDriverFactory(WMSMiniDriverFactory *mdf)
|
|
{
|
|
g_mini_driver_manager.Register(mdf);
|
|
}
|
|
|
|
void WMSDeregisterMiniDrivers(CPL_UNUSED GDALDriver *)
|
|
{
|
|
g_mini_driver_manager.erase();
|
|
}
|