TIDAHistogram.h

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#ifndef   TIDA_HISTOGRAM_H
#define   TIDA_HISTOGRAM_H
 
#include "GaudiKernel/ToolHandle.h"
#include "AthenaMonitoringKernel/GenericMonitoringTool.h"
 
#include "AthenaMonitoringKernel/Monitored.h"
 
#include <string>
#include <stdexcept>
 
namespace TIDA {
 
template<typename T> 
class Histogram { 
 
public:
 
  Histogram() : m_monTool(0), m_name("UNINITIALISED"), m_initialised(false) { } 
  
  Histogram( ToolHandle<GenericMonitoringTool>* m, const std::string& name ) :
    m_monTool(m), m_name(name), m_initialised(false)  { 
    if ( !m_name.empty() && m_monTool ) m_initialised = true;
  } 
 
  void Fill( T d ) const {
    if ( !m_initialised ) throw std::runtime_error("TIDA::Histogram not initialised: "+name());
    auto s = Monitored::Scalar<T>( m_name, d ); 
    Monitored::Group( *m_monTool, s );
  }
 
  void Fill( T d, T w ) const { 
    if ( !m_initialised ) throw std::runtime_error("TIDA::Histogram not initialised: "+name());
    auto s  = Monitored::Scalar<T>( m_name, d );
    auto sw = Monitored::Scalar<T>( m_name+"_weight", w ); 
    Monitored::Group( *m_monTool, s, sw );
  }
 
  const std::string& name() const { return m_name; }
 
  ToolHandle<GenericMonitoringTool>* monTool() const { return m_monTool; };
 
  const Histogram* operator->() const { return this; }
  
private:
 
  ToolHandle<GenericMonitoringTool>* m_monTool;
 
  std::string m_name;
 
  bool        m_initialised;
  
};
 
 
 
}
 
 
#endif  /* TIDA_HISTOGRAM_H */