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#include "xmlApi.hpp"
namespace core {
ext::map < std::string, std::unique_ptr < xmlApi < object::Object >::GroupParser > > & xmlApi < object::Object >::parseFunctions ( ) {
static ext::map < std::string, std::unique_ptr < GroupParser > > res;
return res;
}
ext::map < std::string, std::unique_ptr < xmlApi < object::Object >::GroupComposer > > & xmlApi < object::Object >::composeFunctions ( ) {
static ext::map < std::string, std::unique_ptr < GroupComposer > > res;
return res;
}
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object::Object xmlApi < object::Object >::parseRef ( xmlApiInputContext & input ) {
sax::FromXMLParserHelper::popToken ( input, sax::Token::TokenType::START_ELEMENT, "Ref" );
sax::FromXMLParserHelper::popToken ( input, sax::Token::TokenType::START_ATTRIBUTE, "id" );
int id = ext::from_string < int > ( sax::FromXMLParserHelper::popTokenData ( input, sax::Token::TokenType::CHARACTER ) );
sax::FromXMLParserHelper::popToken ( input, sax::Token::TokenType::END_ATTRIBUTE, "id" );
sax::FromXMLParserHelper::popToken ( input, sax::Token::TokenType::END_ELEMENT, "Ref" );
ext::map < int, object::Object >::iterator elem = input.idToInstance ( ).find ( id );
if ( elem == input.idToInstance ( ).end ( ) ) {
common::Streams::err << input.idToInstance ( ) << std::endl;
throw exception::CommonException ( "XML Inconsistent ( id not found " + ext::to_string ( id ) + " )" );
}
return elem->second;
}
object::Object xmlApi < object::Object >::parseUnique ( xmlApiInputContext & input ) {
sax::FromXMLParserHelper::popToken ( input, sax::Token::TokenType::START_ELEMENT, "UniqueObject" );
object::Object baseObject ( parse ( input ) );
sax::FromXMLParserHelper::popToken ( input, sax::Token::TokenType::START_ELEMENT, "id" );
unsigned id = ext::from_string < unsigned > ( sax::FromXMLParserHelper::popTokenData ( input, sax::Token::TokenType::CHARACTER ) );
sax::FromXMLParserHelper::popToken ( input, sax::Token::TokenType::END_ELEMENT, "id" );
sax::FromXMLParserHelper::popToken ( input, sax::Token::TokenType::END_ELEMENT, "UniqueObject" );
baseObject += id;
return baseObject;
}
object::Object xmlApi < object::Object >::parseObject ( xmlApiInputContext & input, const std::string & tagName ) {
typename ext::map < std::string, std::unique_ptr < GroupParser > >::iterator callback = parseFunctions ( ).find ( tagName );
if ( callback == parseFunctions ( ).end ( ) ) throw exception::CommonException ( "Parse callback for " + tagName + " tag not registered." );
return callback->second->parse ( input );
}
object::Object xmlApi < object::Object >::parse ( xmlApiInputContext & input, const std::string & tagName ) {
if ( /* common::GlobalData::optimizeXml && */ tagName == "Ref" ) {
return parseRef ( input );
} else if ( tagName == "UniqueObject" ) {
return parseUnique ( input );
} else {
return parseObject ( input, tagName );
}
}
object::Object xmlApi < object::Object >::parse ( ext::deque < sax::Token >::iterator & data ) {
xmlApiInputContext & input = static_cast < xmlApiInputContext & > ( data );
sax::FromXMLParserHelper::skipAttributes ( input, sax::Token::TokenType::START_ELEMENT );
const std::string & tagName = sax::FromXMLParserHelper::getTokenData ( static_cast < ext::deque < sax::Token >::iterator & > ( input ), sax::Token::TokenType::START_ELEMENT );
/* find out if this is a base for reference */
bool ref = sax::FromXMLParserHelper::isToken ( input + 1, sax::Token::TokenType::START_ATTRIBUTE, "ref" );
int id = 0;
if ( ref ) {
ext::deque < sax::Token >::iterator tmp = input + 2;
id = ext::from_string < unsigned > ( sax::FromXMLParserHelper::popTokenData ( tmp, sax::Token::TokenType::CHARACTER ) );
}
object::Object res = parse ( input, tagName );
/* if object is a base of reference, register it */
if ( ref )
input.idToInstance ( ).insert ( std::make_pair ( id, res ) );
return res;
}
bool xmlApi < object::Object >::first ( const ext::deque < sax::Token >::const_iterator & input ) {
const std::string & tagName = sax::FromXMLParserHelper::getTokenData ( input, sax::Token::TokenType::START_ELEMENT );
if ( tagName == "Ref" ) return true;
typename ext::map < std::string, std::unique_ptr < GroupParser > >::iterator callback = parseFunctions ( ).find ( tagName );
if ( callback == parseFunctions ( ).end ( ) ) return false;
return true;
}
std::string xmlApi < object::Object >::xmlTagName ( ) {
std::string target = ext::to_string < object::Object > ( );
throw exception::CommonException ( "Type " + target + " does not have xmlTagName." );
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}
void xmlApi < object::Object >::composeRef ( xmlApiOutputContext & output, typename ext::map < object::Object, int >::iterator & elem ) {
output.emplace_back ( "Ref", sax::Token::TokenType::START_ELEMENT );
output.emplace_back ( "id", sax::Token::TokenType::START_ATTRIBUTE );
output.emplace_back ( ext::to_string ( elem->second ), sax::Token::TokenType::CHARACTER );
output.emplace_back ( "id", sax::Token::TokenType::END_ATTRIBUTE );
output.emplace_back ( "Ref", sax::Token::TokenType::END_ELEMENT );
}
void xmlApi < object::Object >::composeUnique ( xmlApiOutputContext & output, const object::Object & data ) {
output.emplace_back ( "UniqueObject", sax::Token::TokenType::START_ELEMENT );
composeObject ( output, data );
output.emplace_back ( "id", sax::Token::TokenType::START_ELEMENT );
output.emplace_back ( ext::to_string ( data.getId ( ) ), sax::Token::TokenType::CHARACTER );
output.emplace_back ( "id", sax::Token::TokenType::END_ELEMENT );
output.emplace_back ( "UniqueObject", sax::Token::TokenType::END_ELEMENT );
}
void xmlApi < object::Object >::composeObject ( xmlApiOutputContext & output, const object::Object & data ) {
const auto & content = data.getData ( );
std::string type = ext::to_string ( ext::type_index ( typeid ( content ) ) );
typename ext::map < std::string, std::unique_ptr < GroupComposer > >::iterator callback = composeFunctions ( ).find ( type );
if ( callback == composeFunctions ( ).end ( ) ) throw exception::CommonException ( "Compose callback for " + type + " tag not registered." );
/* encode referenced object */
callback->second->compose ( output, data );
}
void xmlApi < object::Object >::compose ( ext::deque < sax::Token > & data, const object::Object & object ) {
xmlApiOutputContext & output = ( xmlApiOutputContext & ) data;
typename ext::map < object::Object, int >::iterator elem = output.instanceToId ( ).find ( object );
/* get current position in token stream */
size_t pos = output.size();
int id = 0;
if ( common::GlobalData::optimizeXml && elem == output.instanceToId ( ).end ( ) ) {
id = output.idMax ( )++;
}
if ( common::GlobalData::optimizeXml && elem != output.instanceToId ( ).end ( ) ) {
composeRef ( output, elem );
} else if ( object.getId ( ) != 0 ) {
composeUnique ( output, object );
} else {
composeObject ( output, object );
}
/* emplace referenced attribute */
if ( common::GlobalData::optimizeXml && elem == output.instanceToId ( ).end ( ) ) {
output.emplace ( output.begin ( ) + pos + 1, "ref", sax::Token::TokenType::START_ATTRIBUTE );
output.emplace ( output.begin ( ) + pos + 2, ext::to_string ( id ), sax::Token::TokenType::CHARACTER );
output.emplace ( output.begin ( ) + pos + 3, "ref", sax::Token::TokenType::END_ATTRIBUTE );
output.instanceToId ( ).insert ( std::make_pair ( object, id ) );
}
}
} /* namespace core */