JROOT::JRootReader Class Reference

Implementation for ASCII input of objects with ROOT dictionary. More...

#include <JRootStreamer.hh>

Inheritance diagram for JROOT::JRootReader:

Public Member Functions
	JRootReader (std::istream &in, const JEquationParameters &parameters, const JRootDictionary_t &dictionary)
	Constructor. More...
const JRootDictionary_t &	getDictionary () const
	Get dictionary. More...
template<class T >
JRootReader &	get (T &object)
	Read object according equation format. More...
JRootReader &	get (const JRootReadableClass &cls)
	Read ROOT class according equation format. More...
template<class T >
JRootReader &	getObject (T &object)
	Read object. More...
JRootReader &	getObject (const JRootReadableClass &cls)
	Read ROOT class. More...
JRootReader &	getObject (JRootReadableClass &cls)
	Read ROOT class. More...

Private Member Functions
template<class T >
JRootReader &	getObject (T &object, const JBool< true > &option)
	Read object. More...
template<class T >
JRootReader &	getObject (T &object, const JBool< false > &option)
	Read object. More...
template<class JElement_t , class JAllocator_t >
JRootReader &	getObject (std::vector< JElement_t, JAllocator_t > &object, const JBool< false > &option)
	Read object. More...

Private Attributes
const JRootDictionary_t &	dictionary

Detailed Description

Implementation for ASCII input of objects with ROOT dictionary.

The method JRootReader::get is compatible with equation formatting, i.e:

<key>[<division><key>]<separator><value>[<white space><value>]*<end of line>

In this, the key corresponds to the name of a data member, which can be recursively parsed via a division character.

The method JRootReader::getObject relates to simple formatting, i.e:

<value>[<white space><value>]*

The default format for input of std::vector<T> is

<number of elements>[<white space><value>]*

Definition at line 59 of file JRootStreamer.hh.

Constructor & Destructor Documentation

JROOT::JRootReader::JRootReader ( std::istream &  in, const JEquationParameters &  parameters, const JRootDictionary_t &  dictionary  )

inline

Constructor.

Parameters

in	input stream
parameters	equation parameters
dictionary	dictionary

Definition at line 71 of file JRootStreamer.hh.

                                                       :
      std::istream(in.rdbuf()),
      JStreamState(in, static_cast<std::istream&>(*this)),
      dictionary(dictionary)
    {
      imbue(std::locale(in.getloc(), new JLANG::JEquationFacet(parameters)));
    }

Member Function Documentation

const JRootDictionary_t& JROOT::JRootReader::getDictionary ( ) const

inline

Get dictionary.

Returns

dictionary

Definition at line 87 of file JRootStreamer.hh.

    {
      return dictionary;
    }

template<class T >

JRootReader& JROOT::JRootReader::get ( T &  object )

inline

Read object according equation format.

Parameters

object

object

Returns

this ROOT reader

Definition at line 100 of file JRootStreamer.hh.

    {
      return this->get(JRootReadableClass(object));
    }

JRootReader& JROOT::JRootReader::get ( const JRootReadableClass &  cls )

inline

Read ROOT class according equation format.

Parameters

cls	ROOT class

Returns

this ROOT reader

Definition at line 112 of file JRootStreamer.hh.

    {
      using namespace std;
      using namespace JPP;

      if (cls.is_valid()) {

        const JEquationFacet& facet = use_facet<JEquationFacet>(this->getloc());
        
        for (JEquation equation; *this >> equation; ) {

          const JRootReadableClass abc = cls.find(equation.getKey().c_str());

          bool status = abc.is_valid();
          
          if (status) {
          
            JRedirectString redirect(*this, equation.getValue());
          
            if      (facet.isDivision (equation.getSeparator()))
              this->get(abc);
            else if (facet.isSeparator(equation.getSeparator())) 
              this->getObject(abc);
            else
              status = false;
            
            status &= (!this->fail() || this->eof());
          }

          if (!status) {
            THROW(JException, "Error parsing: " << equation);
          }
        }
      }

      return *this;
    }

template<class T >

JRootReader& JROOT::JRootReader::getObject ( T &  object )

inline

Read object.

Parameters

object

object

Returns

this ROOT reader

Definition at line 158 of file JRootStreamer.hh.

    {
      return this->getObject(object, JBool<JStreamAvailable<T>::has_istream>());
    }

JRootReader& JROOT::JRootReader::getObject ( const JRootReadableClass &  cls )

inline

Read ROOT class.

Parameters

cls	ROOT class

Returns

this ROOT reader

Definition at line 170 of file JRootStreamer.hh.

    {
      if (cls.is_valid()) {

        JRootDictionary_t::const_iterator i = this->getDictionary().find(cls.getTypename());

        if (i != this->getDictionary().end()) {

          i->second->getObject(*this, cls.getAddress());
          
        } else if (cls.getClass() != NULL) {
          
          if (cls.getClass()->GetListOfBases() != NULL) {

            std::unique_ptr<TIterator> i(cls.getClass()->GetListOfBases()->MakeIterator());
          
            for (const TBaseClass* p; (p = (const TBaseClass*) i->Next()) != NULL && (bool) (*this); ) {
              this->getObject(cls.get(*p));
            }
          }
          
          if (cls.getClass()->GetListOfDataMembers() != NULL) {

            std::unique_ptr<TIterator> i(cls.getClass()->GetListOfDataMembers()->MakeIterator());
          
            for (const TDataMember* p; (p = (const TDataMember*) i->Next()) != NULL && (bool) (*this); ) {
              this->getObject(cls.get(*p));
            }
          }
        }
      }

      return *this;
    }

JRootReader& JROOT::JRootReader::getObject ( JRootReadableClass &  cls )

inline

Read ROOT class.

Parameters

cls	ROOT class

Returns

this ROOT reader

Definition at line 212 of file JRootStreamer.hh.

    {
      return getObject(const_cast<const JRootReadableClass&>(cls));
    }

template<class T >

JRootReader& JROOT::JRootReader::getObject ( T &  object, const JBool< true > &  option  )

inlineprivate

Read object.

Parameters

object	object
option	true

Returns

this ROOT reader

Definition at line 226 of file JRootStreamer.hh.

    {
      *this >> object;

      return *this;
    }

template<class T >

JRootReader& JROOT::JRootReader::getObject ( T &  object, const JBool< false > &  option  )

inlineprivate

Read object.

Parameters

object	object
option	false

Returns

this ROOT reader

Definition at line 242 of file JRootStreamer.hh.

    {
      return this->getObject(JRootReadableClass(object));
    }

template<class JElement_t , class JAllocator_t >

JRootReader& JROOT::JRootReader::getObject ( std::vector< JElement_t, JAllocator_t > &  object, const JBool< false > &  option  )

inlineprivate

Read object.

Parameters

object	object
option	false

Returns

this ROOT reader

Definition at line 256 of file JRootStreamer.hh.

    {
      int n = 0;

      this->getObject(n);

      for (JElement_t element; n != 0 && this->getObject(element); --n) {
        object.push_back(element);
      }

      return *this;
    }

Member Data Documentation

const JRootDictionary_t& JROOT::JRootReader::dictionary

private

Definition at line 270 of file JRootStreamer.hh.

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The documentation for this class was generated from the following file:

• JRootStreamer.hh