FIX8::F8MetaCntx Struct Reference

Static metadata context class - one per FIX xml schema. More...

#include <message.hpp>

Public Member Functions
	F8MetaCntx (const unsigned version, const MsgTable &bme, const FieldTable &be, const char **cn, const f8String &bg)
	~F8MetaCntx ()
	Dtor. More...
const BaseEntry *	find_be (const unsigned short fnum) const
const BaseEntry *	reverse_find_be (const char *fieldstr) const
unsigned short	reverse_find_fnum (const char *fieldstr) const
BaseField *	create_field (unsigned short fnum, const char *from) const
BaseField *	create_field (const char *tag, const char *from) const
const BaseMsgEntry *	find_bme (const char *tag) const
const BaseMsgEntry *	reverse_find_bme (const char *msgstr) const
Message *	create_msg_from_longname (const char *tag, bool deepctor=true) const
Message *	create_msg (const char *tag, bool deepctor=true) const
unsigned	version () const
const f8String &	get_beginStr () const

Static Public Member Functions
static bool	_comp (const char *p1, const char *p2)

Public Attributes
const unsigned	_version
	4 digit fix version <Major:1><Minor:1><Revision:2> eg. 4.2r10 is 4210 More...
const MsgTable &	_bme
	Framework generated lookup table to generate Fix messages. More...
const FieldTable &	_be
	Framework generated lookup table to generate Fix fields. More...
const char **	_cn
	Framework generated component name table. More...
const unsigned	_flu_sz
	Number of elements in Hash array. More...
const BaseEntry **	_flu
	Hash array for field lookup (built by ctor) More...
msg_create	_mk_hdr
	References to the header and trailer create functions. More...
msg_create	_mk_trl
const f8String	_beginStr
	Fix header beginstring. More...
const size_t	_preamble_sz
	Preamble length. More...
ReverseMsgTable	_reverse_msgtable
ReverseFieldTable	_reverse_fieldtable

Detailed Description

Static metadata context class - one per FIX xml schema.

Definition at line 210 of file message.hpp.

Constructor & Destructor Documentation

FIX8::F8MetaCntx::F8MetaCntx ( const unsigned  version, const MsgTable &  bme, const FieldTable &  be, const char **  cn, const f8String &  bg  )

inline

Ctor.

Parameters

version	FIX version
bme	Generated Message Table
be	Generated Field Table
cn	Component name table
bg	BeginString

Definition at line 242 of file message.hpp.

References FIX8::_pair< Key, Val >::_key, FIX8::_pair< Key, Val >::_value, FIX8::GeneratedTable< Key, Val >::at(), FIX8::GeneratedTable< Key, Val >::begin(), FIX8::GeneratedTable< Key, Val >::end(), and FIX8::GeneratedTable< Key, Val >::size().

      : _version(version), _bme(bme), _be(be), _cn(cn),
      _flu_sz(_be.at(_be.size() - 1)->_key + 1), _flu(new const BaseEntry *[_flu_sz]),
      _mk_hdr(_bme.find_ref("header")._create._do), _mk_trl(_bme.find_ref("trailer")._create._do),
      _beginStr(bg), _preamble_sz(2 + _beginStr.size() + 1 + 3),
      _reverse_msgtable(_comp), _reverse_fieldtable(_comp)
   {
      if (_flu_sz == 1)
         throw f8Exception("F8MetaCntx initialisation incomplete");
      std::fill(_flu, _flu + _flu_sz, nullptr);
      for (unsigned offset(0); offset < _be.size(); ++offset)
         *(_flu + _be.at(offset)->_key) = &_be.at(offset)->_value;

      std::for_each(_be.begin(), _be.end(), [this](const FieldTable::Pair& pp)
         { _reverse_fieldtable.emplace(std::make_pair(pp.second()._name, &pp.second())); });
      std::for_each(_bme.begin(), _bme.end(), [this](const MsgTable::Pair& pp)
         { _reverse_msgtable.emplace(std::make_pair(pp.second()._name, &pp.second())); });
   }

FIX8::F8MetaCntx::~F8MetaCntx ( )

inline

Dtor.

Definition at line 262 of file message.hpp.

References _flu.

{ delete[] _flu; _flu = nullptr; }

Member Function Documentation

static bool FIX8::F8MetaCntx::_comp ( const char *  p1, const char *  p2  )

inlinestatic

Definition at line 234 of file message.hpp.

{ return ::strcmp(p1, p2) < 0; }

BaseField* FIX8::F8MetaCntx::create_field ( unsigned short  fnum, const char *  from  ) const

inline

Create a new field of the tag type passed, and from the raw string given.

Parameters

fnum	FIX field number
from	const char ptr to string containing value to construct from

Returns

ptr to BaseField or 0 if fnum not found

Definition at line 300 of file message.hpp.

References FIX8::BaseEntry::_create, FIX8::Inst::_do, FIX8::BaseEntry::_rlm, and find_be().

   {
      const BaseEntry *be(find_be(fnum));
      return be ? be->_create._do(from, be->_rlm, -1) : nullptr;
   }

BaseField* FIX8::F8MetaCntx::create_field ( const char *  tag, const char *  from  ) const

inline

Create a new field of the tag type passed, and from the raw string given.

Parameters

tag	const char ptr to longname of field to create
from	const char ptr to string containing value to construct from

Returns

ptr to BaseField or 0 if fnum not found

Definition at line 310 of file message.hpp.

References FIX8::BaseEntry::_create, FIX8::Inst::_do, FIX8::BaseEntry::_rlm, and reverse_find_be().

   {
      const BaseEntry *be(reverse_find_be(tag));
      return be ? be->_create._do(from, be->_rlm, -1) : nullptr;
   }

Message* FIX8::F8MetaCntx::create_msg ( const char *  tag, bool  deepctor = true  ) const

inline

Create a new message of the tag type passed.

Parameters

tag	const char ptr to tag of message
deepctor	if true, do deep message construction

Returns

ptr to Message or 0 if tag not found

Definition at line 344 of file message.hpp.

References FIX8::BaseMsgEntry::_create, FIX8::Minst::_do, and find_bme().

   {
      const BaseMsgEntry *bme(find_bme(tag));
      return bme ? bme->_create._do(deepctor) : nullptr;
   }

Message* FIX8::F8MetaCntx::create_msg_from_longname ( const char *  tag, bool  deepctor = true  ) const

inline

Create a new message from longname

Parameters

tag	const char ptr to tag of message
deepctor	if true, do deep message construction

Returns

ptr to Message or 0 if tag not found

Definition at line 334 of file message.hpp.

References FIX8::BaseMsgEntry::_create, FIX8::Minst::_do, and reverse_find_bme().

   {
      const BaseMsgEntry *bme(reverse_find_bme(tag));
      return bme ? bme->_create._do(deepctor) : nullptr;
   }

const BaseEntry* FIX8::F8MetaCntx::find_be ( const unsigned short  fnum ) const

inline

Get the field BaseEntry object for this field number. Will use fast field index lookup.

Parameters

fnum	field to get

Returns

ptr to BaseEntry or 0 if not found

Definition at line 267 of file message.hpp.

Referenced by FIX8::MessageBase::check_set_rlm(), and create_field().

      { return fnum < _flu_sz ? _flu[fnum] : nullptr; }

const BaseMsgEntry* FIX8::F8MetaCntx::find_bme ( const char *  tag ) const

inline

Get the message BaseMsgEntry object for this message.

Parameters

tag	const char ptr to name of message to get

Returns

ptr to BaseMsgEntry or 0 if not found

Definition at line 319 of file message.hpp.

References FIX8::GeneratedTable< Key, Val >::find_ptr().

Referenced by create_msg().

{ return _bme.find_ptr(tag); }

const f8String& FIX8::F8MetaCntx::get_beginStr ( ) const

inline

Get fix header beginstring

Returns

beginstring

Definition at line 356 of file message.hpp.

References _beginStr.

{ return _beginStr; }

const BaseEntry* FIX8::F8MetaCntx::reverse_find_be ( const char *  fieldstr ) const

inline

Get the field BaseEntry object for this field by tag. Reverse lookup.

Parameters

fieldstr

const char ptr to longname of field to get

Returns

ptr to BaseEntry or 0 if not found

Definition at line 273 of file message.hpp.

Referenced by create_field().

   {
      if (fieldstr && *fieldstr)
      {
         auto itr(_reverse_fieldtable.find(fieldstr));
         return itr != _reverse_fieldtable.cend() ? itr->second : nullptr;
      }
      return nullptr;
   }

const BaseMsgEntry* FIX8::F8MetaCntx::reverse_find_bme ( const char *  msgstr ) const

inline

Get the message BaseMsgEntry object for this message. Reverse lookup.

Parameters

msgstr

const char ptr to longname of message to get

Returns

ptr to BaseMsgEntry or 0 if not found

Definition at line 324 of file message.hpp.

Referenced by create_msg_from_longname().

   {
      auto itr(_reverse_msgtable.find(msgstr));
      return itr != _reverse_msgtable.cend() ? itr->second : nullptr;
   }

unsigned short FIX8::F8MetaCntx::reverse_find_fnum ( const char *  fieldstr ) const

inline

Get the field number for this field by tag. Reverse lookup.

Parameters

fieldstr

const char ptr to longname of field to get

Returns

unsigned short field number

Definition at line 286 of file message.hpp.

Referenced by FIX8::MessageBase::get_field_by_name(), and FIX8::Message::get_field_by_name_flattened().

   {
      if (fieldstr && *fieldstr)
      {
         auto itr(_reverse_fieldtable.find(fieldstr));
         return itr != _reverse_fieldtable.cend() ? itr->second->_fnum : 0;
      }
      return 0;
   }

unsigned FIX8::F8MetaCntx::version ( ) const

inline

4 digit fix version <Major:1><Minor:1><Revision:2> eg. 4.2r10 is 4210

Returns

version

Definition at line 352 of file message.hpp.

References _version.

Referenced by main().

{ return _version; }

Member Data Documentation

const FieldTable& FIX8::F8MetaCntx::_be

Framework generated lookup table to generate Fix fields.

Definition at line 218 of file message.hpp.

const f8String FIX8::F8MetaCntx::_beginStr

Fix header beginstring.

Definition at line 228 of file message.hpp.

Referenced by get_beginStr(), FIX8::Session::handle_logon(), and main().

const MsgTable& FIX8::F8MetaCntx::_bme

Framework generated lookup table to generate Fix messages.

Definition at line 216 of file message.hpp.

Referenced by FIX8::Session::create_msg(), and FIX8::Message::factory().

const char** FIX8::F8MetaCntx::_cn

Framework generated component name table.

Definition at line 220 of file message.hpp.

const BaseEntry** FIX8::F8MetaCntx::_flu

Hash array for field lookup (built by ctor)

Definition at line 224 of file message.hpp.

Referenced by ~F8MetaCntx().

const unsigned FIX8::F8MetaCntx::_flu_sz

Number of elements in Hash array.

Definition at line 222 of file message.hpp.

msg_create FIX8::F8MetaCntx::_mk_hdr

References to the header and trailer create functions.

Definition at line 226 of file message.hpp.

msg_create FIX8::F8MetaCntx::_mk_trl

Definition at line 226 of file message.hpp.

const size_t FIX8::F8MetaCntx::_preamble_sz

Preamble length.

Definition at line 230 of file message.hpp.

ReverseFieldTable FIX8::F8MetaCntx::_reverse_fieldtable

Definition at line 233 of file message.hpp.

ReverseMsgTable FIX8::F8MetaCntx::_reverse_msgtable

Definition at line 232 of file message.hpp.

const unsigned FIX8::F8MetaCntx::_version

4 digit fix version <Major:1><Minor:1><Revision:2> eg. 4.2r10 is 4210

Definition at line 213 of file message.hpp.

Referenced by version().

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

• message.hpp