/cvmfs/atlas.cern.ch/repo/sw/ASG/AnalysisBase/2.4.31/SampleHandler/SampleHandler/MetaObject.h

#ifndef SAMPLE_HANDLER_META_OBJECT_HH
#define SAMPLE_HANDLER_META_OBJECT_HH

//          Copyright Nils Krumnack 2011 - 2012.
// Distributed under the Boost Software License, Version 1.0.
//    (See accompanying file LICENSE_1_0.txt or copy at
//          http://www.boost.org/LICENSE_1_0.txt)

// Please feel free to contact me (krumnack@iastate.edu) for bug
// reports, feature suggestions, praise and complaints.



#include <SampleHandler/Global.h>
#include <RootCoreUtils/Assert.h>
#include <RootCoreUtils/Deprecated.h>

#include <string>
#include <TCollection.h>

namespace SH
{
  std::string dbg (const MetaObject& obj, unsigned verbosity = 0);


  void swap (MetaObject& a, MetaObject& b);



  class MetaObject : public TCollection
  {
    //
    // public interface
    //

  public:
    enum CastMode
    {
      CAST_ERROR_THROW,

      CAST_ERROR_DEFAULT,

      CAST_NOCAST_THROW,

      CAST_NOCAST_DEFAULT
    };



  public:
    void testInvariant () const;


  public:
    MetaObject ();


  public:
    MetaObject (const MetaObject& that);


  public:
    virtual ~MetaObject ();


  public:
    MetaObject& operator = (const MetaObject& that);


  public:
    void swap (MetaObject& that);


  public:
    void remove (const std::string& name);


  public:
    void addReplace (TNamed *meta_swallow);


  public:
    TObject *get (const std::string& name);
    const TObject *get (const std::string& name) const;


  public:
    RCU_DEPRECATED ("please use castDouble instead")
    double getDouble (const std::string& name, double def_val = 0) const;

  public:
    RCU_DEPRECATED ("please use castString instead")
    std::string getString (const std::string& name, const std::string& def_val = "") const;


  public:
    template<class T> T castT(const std::string& name, T def_val,
                  CastMode mode) const;


  public:
    double castDouble (const std::string& name, double def_val = 0,
               CastMode mode = CAST_ERROR_THROW) const;

  public:
    std::string castString (const std::string& name, const std::string& def_val = "",
                CastMode mode = CAST_ERROR_THROW) const;


  public:
    int castInteger (const std::string& name, int def_val = 0,
             CastMode mode = CAST_ERROR_THROW) const;


  public:
    bool castBool (const std::string& name, bool def_val = false,
           CastMode mode = CAST_ERROR_THROW) const;
    
  public:
    void setDouble (const std::string& name, double value);

  public:
    void setString (const std::string& name, const std::string& value);

  public:
    void setInteger (const std::string& name, int value);

  public:
    void setBool (const std::string& name, bool value);

  public:
    template<class T> void setT(const std::string& name, T value){
      RCU_CHANGE_INVARIANT (this);
      addReplace (new MetaData<T> (name, value));
    }

  public:
    void fetch (const MetaObject& source);


  public:
    void fetchDefaults (const MetaObject& source);


  public:
    void fetchFromString(const std::string& source);


  public:
    std::string dumpToString();


    //
    // method inherited from TCollection
    //

  public:
    virtual void Add (TObject *meta_swallow);


  public:
    virtual void Clear (Option_t *option = "");


  public:
    virtual void Delete (Option_t *option = "");


  public:
    virtual Int_t GetEntries () const;


  public:
    virtual TObject **GetObjectRef (const TObject *meta) const;


  public:
    virtual TIterator *MakeIterator (Bool_t dir = kIterForward) const;


  public:
    virtual TObject *Remove (TObject *meta);

    //
    // private interface
    //

  private:
    TList *m_dataList;

    ClassDef(MetaObject, 1);
  };
}

#endif

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