/data/refman/pasoursint/CMSSW_5_2_9/src/Alignment/CommonAlignment/interface/AlignSetup.h

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#ifndef Alignment_CommonAlignment_AlignSetup_h
#define Alignment_CommonAlignment_AlignSetup_h

#include <map>
#include <sstream>

#include "FWCore/Utilities/interface/Exception.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"

template <class Type>
class AlignSetup
{
  typedef typename std::map<std::string, Type> Container;

public:

  AlignSetup() {}

  Type& get( const std::string& name = "" );

  Type& find( const std::string& name = "" );

  void dump( void ) const;

private:
  Container theStore;
};


template <class Type>
Type& AlignSetup<Type>::get(const std::string& name)
{
  return theStore[name];
}

template <class Type>
Type& AlignSetup<Type>::find(const std::string& name)                
{
  typename Container::iterator o = theStore.find(name);

  if (theStore.end() == o) {
      std::ostringstream knownKeys;
      for (typename Container::const_iterator it = theStore.begin(); it != theStore.end(); ++it) {
        knownKeys << (it != theStore.begin() ? ", " : "") << it->first;
      }
      throw cms::Exception("AlignSetupError")
        << "Cannot find an object of name " << name << " in AlignSetup, know only "
        << knownKeys.str() << ".";
    }
  
  return o->second;
}

template <class Type>
void AlignSetup<Type>::dump( void ) const
{
  edm::LogInfo("AlignSetup") << "Printing out AlignSetup: ";
  for ( typename Container::const_iterator it = theStore.begin();
        it != theStore.end(); ++it ) {
    edm::LogVerbatim("AlignSetup") << it->first << std::endl;
  }
}

#endif