#include <CFilterOutputStageFactory.h>
class CFilterOutputStageFactory {
public:
static CFilterOutputStageFactory& getInstance();
CFilterOutputStage* create(std::string type) const;
void Register(CFilterOutputStageCreator& creator);
std::string document() const;
};
The CFilterOutputStageFactory singleton
is used to create filter filter output stages to associate with
filters once their -format is known.
The filter output stage is then responsible for actually writing filtered events to the output file.
static CFilterOutputStageFactory& getInstance();
Returns a pointer to the singleton instance of this class. Note that if necessary the object is constructed. Constructors for this class are private to enforce the singleton nature of this object.
const CFilterOutputStage* create(std::string type);
Iterates over the registered filter output stage creators
asking them to create a new output stage for the
format specified by type.
void Register(CFilterOutputStageCreator& creator);
Provides a new output stage creator to the factory. Output stage creators are the objects that actually create filter output stages.
See CFilterOutputStagereator
for information about filter output stage creators
const std::string document();
Collects all of the documentation strings from the registered creators separated by newlines. This is used by the filter command to generate help text that describes the available output formats.