zeek/src/file_analysis/Component.h

74 lines
2 KiB
C++

// See the file "COPYING" in the main distribution directory for copyright.
#ifndef FILE_ANALYZER_COMPONENT_H
#define FILE_ANALYZER_COMPONENT_H
#include "Tag.h"
#include "plugin/Component.h"
#include "plugin/TaggedComponent.h"
#include "Val.h"
#include "../config.h"
#include "../util.h"
namespace file_analysis {
class File;
class Analyzer;
/**
* Component description for plugins providing file analyzers.
*
* A plugin can provide a specific file analyzer by registering this
* analyzer component, describing the analyzer.
*/
class Component : public plugin::Component,
public plugin::TaggedComponent<file_analysis::Tag> {
public:
typedef Analyzer* (*factory_callback)(RecordVal* args, File* file);
/**
* Constructor.
*
* @param name The name of the provided analyzer. This name is used
* across the system to identify the analyzer, e.g., when calling
* file_analysis::Manager::InstantiateAnalyzer with a name.
*
* @param factory A factory function to instantiate instances of the
* analyzer's class, which must be derived directly or indirectly
* from file_analysis::Analyzer. This is typically a static \c
* Instatiate() method inside the class that just allocates and
* returns a new instance.
*
* @param subtype A subtype associated with this component that
* further distinguishes it. The subtype will be integrated into the
* analyzer::Tag that the manager associates with this analyzer, and
* analyzer instances can accordingly access it via analyzer::Tag().
* If not used, leave at zero.
*/
Component(const std::string& name, factory_callback factory, Tag::subtype_t subtype = 0);
/**
* Destructor.
*/
~Component();
/**
* Returns the analyzer's factory function.
*/
factory_callback Factory() const { return factory; }
protected:
/**
* Overriden from plugin::Component.
*/
virtual void DoDescribe(ODesc* d) const;
private:
factory_callback factory; // The analyzer's factory callback.
};
}
#endif