JROOT::JRootReader Class Reference

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

#include <JRootStreamer.hh>

Inheritance diagram for JROOT::JRootReader:

Classes
struct	JDefaultHelper
	Default helper class for formatting. More...
struct	JHelper
	Helper class for user formatting. More...
struct	JHelper< vector< JAANET::physics > >
	Specialisation of std::vector<JAANET::physics> for reading one element at a time. More...

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...
template<class T >
JRootReader &	getObject (T &object)
	Read object. More...
JRootReader &	get (const JRootClassReader &cls)
	Read ROOT class according equation format. More...
JRootReader &	getObject (const JRootClassReader &cls)
	Read ROOT class. More...

Static Public Member Functions
template<class T >
static JRootReader &	getObject (JRootReader &reader, T &object)
	Read object. More...

Protected 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...

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

and method JRootReader::getObject with 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 61 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 105 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 121 of file JRootStreamer.hh.

    {
      return dictionary;
    }

template<class T >

static JRootReader& JROOT::JRootReader::getObject ( JRootReader &  reader, T &  object  )

inlinestatic

Read object.

This method transfers the reading of the given object to the template JHelper class so that the default format can be changed through specialisation of this class.

Parameters

reader	ROOT reader
object	object

Returns

ROOT reader

Definition at line 138 of file JRootStreamer.hh.

    {
      return JRootReader::JHelper<T>::getObject(reader, object);
    }

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 151 of file JRootStreamer.hh.

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

template<class T >

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

inline

Read object.

Parameters

object

object

Returns

this ROOT reader

Definition at line 164 of file JRootStreamer.hh.

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

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

inline

Read ROOT class according equation format.

Parameters

cls	ROOT class

Returns

this ROOT reader

Definition at line 176 of file JRootStreamer.hh.

    {
      using namespace std;
      using namespace JLANG;

      if (cls.is_valid()) {

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

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

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

          if (!okay) {
            throw JException("Error parsing: " + equation.toString());
          }
        }
      }

      return *this;
    }

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

inline

Read ROOT class.

Parameters

cls	ROOT class

Returns

this ROOT reader

Definition at line 221 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) {

            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) {

            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;
    }

template<class T >

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

inlineprotected

Read object.

Parameters

object	object
option	true

Returns

this ROOT reader

Definition at line 266 of file JRootStreamer.hh.

    {
      *this >> object;

      return *this;
    }

template<class T >

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

inlineprotected

Read object.

Parameters

object	object
option	false

Returns

this ROOT reader

Definition at line 282 of file JRootStreamer.hh.

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

template<class JElement_t , class JAllocator_t >

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

inlineprotected

Read object.

Parameters

object	object
option	false

Returns

this ROOT reader

Definition at line 296 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

protected

Definition at line 310 of file JRootStreamer.hh.

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

• JRootStreamer.hh