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SmartFilterAlg.h

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/*
 * SmartFilterAlg
 *
 * Intelligent filtering of output data
 *
 * Created by: dandwyer@caltech.edu, 08/04/2011
 *
 */

#ifndef SMARTFILTERALG_H
#define SMARTFILTERALG_H 1

#include "GaudiAlg/GaudiAlgorithm.h"

#include <string>
#include <vector>
#include <list>

class ObjectReg;
namespace Rndm {
  class Numbers;
}

class SmartFilterAlg : public GaudiAlgorithm
{
 public:
  SmartFilterAlg(const std::string& name,ISvcLocator* pSvcLocator);
  virtual ~SmartFilterAlg();
  
  virtual StatusCode initialize();
  virtual StatusCode execute(); 
  virtual StatusCode finalize();
  
 private:
  StatusCode processParentHeaders(DataObject* dobj);
  ObjectReg* findRegistration(DataObject* dobj);
  bool isChild(const DataObject* dobj);

 private:
  
  bool m_clearAll;
  
  std::string m_keepLocation;
  
  double m_prescale;
  
  bool m_keepAllParents;
  
  std::vector< std::string > m_keepParents;
  
  double m_parentPrescale;
  
  bool m_keepAllChildren;

  std::vector< std::string > m_keepChildren;
  
  double m_childrenPrescale;
  
  unsigned int m_maxKeptHistory;
  
  // Handle for Archive event store
  IDataProviderSvc* m_archiveSvc;
  // Recent filtered events, used to check for children
  std::list<DataObject*> m_keptHeaders;
  Rndm::Numbers* m_uniform;
};

#endif // SMARTFILTERALG_H

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