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This commit is contained in:
Leonid Fedorov
2022-01-21 16:43:49 +00:00
parent 6b6411229f
commit 04752ec546
1376 changed files with 393460 additions and 412662 deletions
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123
utils/idbdatafile/IDBFactory.h
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@ -26,32 +26,26 @@
namespace idbdatafile
{
class FileFactoryBase;
class IDBFileSystem;
struct FileFactoryEnt
{
FileFactoryEnt() :
type(IDBDataFile::UNKNOWN),
name("unknown"),
factory(0),
filesystem(0) {;}
FileFactoryEnt() : type(IDBDataFile::UNKNOWN), name("unknown"), factory(0), filesystem(0)
{
;
}
FileFactoryEnt(
IDBDataFile::Types t,
const std::string& n,
FileFactoryBase* f,
IDBFileSystem* fs) :
type(t),
name(n),
factory(f),
filesystem(fs) {;}
FileFactoryEnt(IDBDataFile::Types t, const std::string& n, FileFactoryBase* f, IDBFileSystem* fs)
: type(t), name(n), factory(f), filesystem(fs)
{
;
}
IDBDataFile::Types type;
std::string name;
FileFactoryBase* factory;
IDBFileSystem* filesystem;
IDBDataFile::Types type;
std::string name;
FileFactoryBase* factory;
IDBFileSystem* filesystem;
};
typedef FileFactoryEnt (*FileFactoryEntryFunc)();
@ -65,61 +59,60 @@ typedef FileFactoryEnt (*FileFactoryEntryFunc)();
*/
class IDBFactory
{
public:
/**
* This method installs the default plugs for Buffered and Unbuffered files.
* It is called automatically from the IDBPolicy::init() body so that clients
* don't have to worry about it.
*/
static bool installDefaultPlugins();
public:
/**
* This method installs the default plugs for Buffered and Unbuffered files.
* It is called automatically from the IDBPolicy::init() body so that clients
* don't have to worry about it.
*/
static bool installDefaultPlugins();
/**
* This method installs a dynamic plugin. The plugin argument must refer
* to a ".so" file that exposes an extern "C" functions:
* FileFactoryEnt plugin_instance()
*/
static bool installPlugin(const std::string& plugin);
/**
* This method installs a dynamic plugin. The plugin argument must refer
* to a ".so" file that exposes an extern "C" functions:
* FileFactoryEnt plugin_instance()
*/
static bool installPlugin(const std::string& plugin);
/**
* This method lists the loaded plugins by type.
*/
static std::vector<IDBDataFile::Types> listPlugins();
/**
* This method calls the Factory for the specified type
*/
static IDBDataFile* open(IDBDataFile::Types type, const char* fname, const char* mode, unsigned opts, unsigned colWidth);
/**
* This method lists the loaded plugins by type.
*/
static std::vector<IDBDataFile::Types> listPlugins();
/**
* This retrieves the IDBFileSystem for the specified type
*/
static IDBFileSystem& getFs(IDBDataFile::Types type);
/**
* This method calls the Factory for the specified type
*/
static IDBDataFile* open(IDBDataFile::Types type, const char* fname, const char* mode, unsigned opts,
unsigned colWidth);
/**
* This retrieves the IDBFileSystem for the specified type
*/
static const std::string& name(IDBDataFile::Types type);
private:
typedef std::map<IDBDataFile::Types, FileFactoryEnt> FactoryMap;
typedef FactoryMap::const_iterator FactoryMapCIter;
/**
* This retrieves the IDBFileSystem for the specified type
*/
static IDBFileSystem& getFs(IDBDataFile::Types type);
static FactoryMap s_plugins;
/**
* This retrieves the IDBFileSystem for the specified type
*/
static const std::string& name(IDBDataFile::Types type);
IDBFactory();
virtual ~IDBFactory();
private:
typedef std::map<IDBDataFile::Types, FileFactoryEnt> FactoryMap;
typedef FactoryMap::const_iterator FactoryMapCIter;
static FactoryMap s_plugins;
IDBFactory();
virtual ~IDBFactory();
};
inline
const std::string& IDBFactory::name(IDBDataFile::Types type)
inline const std::string& IDBFactory::name(IDBDataFile::Types type)
{
if ( s_plugins.find(type) == s_plugins.end() )
{
throw std::runtime_error("unknown plugin type in IDBFactory::name");
}
return s_plugins[type].name;
}
if (s_plugins.find(type) == s_plugins.end())
{
throw std::runtime_error("unknown plugin type in IDBFactory::name");
}
return s_plugins[type].name;
}
} // namespace idbdatafile