/data/refman/pasoursint/CMSSW_4_1_8_patch9/src/GeneratorInterface/LHEInterface/interface/LHEReader.h

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#ifndef GeneratorInterface_LHEInterface_LHEReader_h
#define GeneratorInterface_LHEInterface_LHEReader_h

#include <string>
#include <vector>
#include <memory>

#include <boost/shared_ptr.hpp>

#include "FWCore/ParameterSet/interface/ParameterSet.h"

namespace lhef {

class XMLDocument;
class LHERunInfo;
class LHEEvent;

class LHEReader {
    public:
        LHEReader(const edm::ParameterSet &params);
        LHEReader(const std::vector<std::string> &fileNames,
                  unsigned int skip = 0);
        LHEReader(const std::string & inputs,
                  unsigned int skip = 0);
        ~LHEReader();

        boost::shared_ptr<LHEEvent> next();

    private:
        class Source;
        class FileSource;
        class StringSource;
        class XMLHandler;

        const std::vector<std::string>  fileURLs;
    const std::string               strName;
        unsigned int                    firstEvent;
        int                             maxEvents;
        unsigned int                    curIndex;

        std::auto_ptr<Source>           curSource;
        std::auto_ptr<XMLDocument>      curDoc;
        boost::shared_ptr<LHERunInfo>   curRunInfo;
        std::auto_ptr<XMLHandler>       handler;
};

} // namespace lhef

#endif // GeneratorInterface_LHEInterface_LHEReader_h