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jsonld.cpp
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jsonld.cpp
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#ifdef JSON
#include "jsonld.h"
#include "rdf.h"
#include "json_spirit.h"
pobj convert ( const json_spirit::wmValue& v );
json_spirit::wmValue convert ( obj& v );
json_spirit::wmValue convert ( pobj v );
pcontext context_t::parse ( pobj localContext, std::vector<string> remoteContexts ) {
pdefined_t defined = make_shared<defined_t>();
context_t result ( options );
if ( !localContext || !localContext->LIST() ) localContext = mk_olist_obj ( olist ( 1, localContext ) );
for ( auto context : *localContext->LIST() ) {
if ( !context || context->Null() ) {
result = context_t ( options );
continue;
}
if ( context->STR() ) {
throw std::runtime_error("Remote context currently unsupported.");
// pstring s = context->STR();
// somap& t1 = *result.MAP();
// pobj p1 = sgetbase ( t1 );
// pstring s1 = p1 ? p1->STR() : 0;
// string uri = resolve ( s1, *s );
// if ( std::find ( remoteContexts.begin(), remoteContexts.end(), uri ) != remoteContexts.end() )
// throw wruntime_error ( RECURSIVE_CONTEXT_INCLUSION + tab + uri );
// remoteContexts.push_back ( uri );
// pobj remoteContext = fromURL ( uri );
// if ( remoteContext && !remoteContext->map_and_has ( str_context ) )
// throw wruntime_error ( INVALID_REMOTE_CONTEXT + tab + context->toString() );
// context = remoteContext ? ( *remoteContext->MAP() ) [str_context] : 0;
// result = *result.parse ( context, remoteContexts );
// continue;
}
if ( !context->MAP() ) throw wruntime_error ( INVALID_LOCAL_CONTEXT + string ( L"\r\n" ) + context->toString() );
somap& cm = *context->MAP();
auto it = cm.find ( L"@base" );
if ( !remoteContexts.size() && it != cm.end() ) {
pobj value = it->second;
if ( value->Null() ) result.MAP()->erase ( L"@base" );
else if ( pstring s = value->STR() ) {
if ( is_abs_iri ( *s ) ) ( *result.MAP() ) [L"@base"] = value;
else {
pstring baseUri = ( *result.MAP() ) [L"@base"]->STR();
if ( !is_abs_iri ( *baseUri ) ) throw wruntime_error ( INVALID_BASE_IRI + tab + ( baseUri ? *baseUri : string ( L"" ) ) );
( *result.MAP() ) [L"@base"] = make_shared<string_obj> ( resolve ( baseUri, *s ) );
}
} else throw Ex9;
}
// 3.5
if ( ( it = cm.find ( str_vocab ) ) != cm.end() ) {
pobj value = it->second;
if ( value->Null() ) result.MAP()->erase ( it );
else if ( pstring s = value->STR() ) {
if ( is_abs_iri ( *s ) ) ( *result.MAP() ) [str_vocab] = value;
else throw Ex7;
} else throw Ex8;
}
if ( ( it = cm.find ( str_lang ) ) != cm.end() ) {
pobj value = it->second;
if ( value->Null() ) result.MAP()->erase ( it );
else if ( pstring s = value->STR() ) getlang ( result ) = make_shared<string_obj> ( lower ( *s ) );
else throw wruntime_error ( INVALID_DEFAULT_LANGUAGE + tab + value->toString() );
}
for ( auto it : cm ) {
if ( is ( it.first, { str_base, str_vocab, str_lang } ) ) continue;
result.create_term_def ( context->MAP(), it.first, defined ); // REVISE
}
}
return make_shared<context_t> ( result );
}
void context_t::create_term_def ( const psomap context, const string term, pdefined_t pdefined ) {
defined_t& defined = *pdefined;
auto dit = defined.find ( term );
if ( dit != defined.end() ) {
if ( dit->second ) return;
throw wruntime_error ( CYCLIC_IRI_MAPPING + tab + term );
}
defined[term] = false;
if ( keyword ( term ) ) throw wruntime_error ( KEYWORD_REDEFINITION + tab + term );
term_defs->erase ( term ); // 4
auto it = context->find ( term );
psomap m;
if ( it == context->end() || it->second->map_and_has_null ( str_id ) ) {
( *term_defs ) [term] = 0;//make_shared<null_obj>();
defined[term] = true;
return;
}
somap value;
if ( it->second->STR() ) value = *newMap ( str_id, it->second )->MAP();
else if ( auto x = it->second->MAP() ) value = *x;
else throw wruntime_error ( INVALID_TERM_DEFINITION );
somap defn;//, &val = *value->MAP();
if ( ( it = value.find ( str_type ) ) != value.end() ) { // 10
if ( !it->second->STR() ) throw wruntime_error ( INVALID_TYPE_MAPPING );
string type ( *expand_iri ( it->second->STR(), false, true, context, pdefined ) );
if ( type != str_id && type != str_vocab && !is_abs_iri ( type ) ) throw wruntime_error ( INVALID_TYPE_MAPPING + tab + type );
defn[str_type] = make_shared<string_obj> ( type );
}
// 11
if ( ( it = value.find ( str_reverse ) ) != value.end() ) {
if ( throw_if_not_contains ( value, str_id, INVALID_REVERSE_PROPERTY ) && !it->second->STR() ) throw Ex5;
string reverse = *expand_iri ( value.at ( str_reverse )->STR(), false, true, context, pdefined );
if ( !is_abs_iri ( reverse ) ) throw wruntime_error ( INVALID_IRI_MAPPING + string ( L"Non-absolute @reverse IRI: " ) + reverse );
defn [str_id] = make_shared<string_obj> ( reverse );
if ( ( it = value.find ( L"@container" ) ) != value.end() && is ( *it->second->STR(), { string ( str_set ), str_index }, Ex6 ) )
defn [L"@container"] = it->second;
defn[str_reverse] = make_shared<bool_obj> ( ( *pdefined ) [term] = true );
( *term_defs ) [term] = mk_somap_obj ( defn );
return;
}
defn[str_reverse] = make_shared<bool_obj> ( false );
size_t colIndex;
if ( ( it = value.find ( str_id ) ) != value.end() && !it->second->STR ( term ) ) { // 13
if ( ! it->second->STR() ) throw Ex1;
pstring res = expand_iri ( it->second->STR(), false, true, context, pdefined );
if ( res && ( keyword ( *res ) || is_abs_iri ( *res ) ) ) {
if ( *res == str_context ) throw Ex2;
defn [str_id] = make_shared<string_obj> ( res );
} else throw Ex3;
} else if ( ( ( colIndex = term.find ( L":" ) ) != string::npos ) /*|| ( term.size() && term[0] == '?' )*/ ) {
if ( colIndex != string::npos ) {
string prefix = term.substr ( 0, colIndex ), suffix = term.substr ( colIndex + 1 );
if ( has ( context, prefix ) ) create_term_def ( context, prefix, pdefined );
if ( ( it = term_defs->find ( prefix ) ) != term_defs->end() )
defn [str_id] = make_shared<string_obj> ( *getid ( it->second )->STR() + suffix );
else defn[str_id] = make_shared<string_obj> ( term );
} else defn[str_id] = make_shared<string_obj> ( term );
} else if ( ( it = MAP()->find ( str_vocab ) ) != MAP()->end() )
defn [str_id] = make_shared<string_obj> ( *MAP()->at ( str_vocab )->STR() + term );
else throw Ex4;
// 16
( ( it = value.find ( L"@container" ) ) != value.end() ) && it->second->STR() &&
is ( *it->second->STR(), { str_list, string ( str_set ), str_index, str_lang }, Ex10 ) && ( defn[L"@container"] = it->second );
auto i1 = value.find ( str_lang ), i2 = value.find ( L"type" );
pstring lang;
if ( i1 != value.end() && i2 == value.end() ) {
if ( !i1->second->Null() || ( lang = i2->second->STR() ) ) getlang ( defn ) = lang ? make_shared<string_obj> ( lower ( *lang ) ) : 0;
else throw Ex11;
}
( *term_defs ) [term] = mk_somap_obj ( defn );
( *pdefined ) [term] = true;
}
pstring context_t::expand_iri ( const pstring value, bool relative, bool vocab, const psomap context, pdefined_t defined ) {
if ( !value || keyword ( *value ) || ( value->size() && ( *value ) [0] == '?' ) ) return value;
pstring rval;
if ( has ( context, *value ) && defined->find ( *value ) == defined->end() ) create_term_def ( context, *value, defined );
somap::iterator it = term_defs->find ( *value );
if ( vocab && it != term_defs->end() ) {
if ( auto td = it->second->MAP() ) return ( it = td->find ( str_id ) ) != td->end() ? it->second->STR() : 0;
return 0;
} else {
size_t colIndex = value->find ( L":" );
if ( colIndex != string::npos ) {
string prefix = value->substr ( 0, colIndex ), suffix = value->substr ( colIndex + 1 );
if ( prefix == L"_" || startsWith ( suffix, L"//" ) ) return value;
else {
if ( has ( context, prefix ) && ( defined->find ( prefix ) == defined->end() || !defined->at ( prefix ) ) )
create_term_def ( context, prefix, defined );
if ( has ( term_defs, prefix ) ) return pstr ( *term_defs->at ( prefix )->MAP()->at ( str_id )->STR() + suffix );
}
return value;
}
if ( vocab && has ( MAP(), str_vocab ) ) return pstr ( *MAP()->at ( str_vocab )->STR() + *value );
else if ( relative ) {
auto base = get ( MAP(), str_base );
return pstr ( resolve ( base ? base->STR() : 0, *value ) );
} else if ( context && is_rel_iri ( *value ) ) throw wruntime_error ( INVALID_IRI_MAPPING + string ( L"not an absolute IRI: " ) + *value );
}
return value;
}
psomap_obj context_t::getInverse() {
if ( inverse ) return inverse;
inverse = mk_somap_obj();
pstring defaultLanguage = getlang ( MAP() )->STR();
if ( !defaultLanguage ) ( *MAP() ) [str_lang] = mk_str_obj ( defaultLanguage = pstr ( L"@none" ) );
for ( auto x : *term_defs ) {
string term = x.first;
auto it = term_defs->find ( term );
psomap definition = it == term_defs->end() || !it->second ? 0 : it->second->MAP();
if ( !definition ) continue;
pstring container = ( ( it = definition->find ( L"@container" ) ) == definition->end() || !it->second ) ? 0 : it->second->STR();
if ( !container ) container = pstr ( L"@none" );
pstring iri = ( ( it = definition->find ( str_id ) ) == definition->end() ) || !it->second ? 0 : it->second->STR();
psomap_obj containerMap = mk_somap_obj ( iri ? inverse->MAP()->at ( *iri )->MAP() : 0 );
if ( !containerMap ) {
containerMap = mk_somap_obj();
inverse->MAP()->at ( *iri ) = containerMap;
}
psomap_obj type_lang_map = mk_somap_obj ( container ? containerMap->MAP()->at ( *container )->MAP() : 0 );
if ( !type_lang_map ) {
type_lang_map = mk_somap_obj();
( *type_lang_map->MAP() ) [str_lang] = mk_somap_obj();
( *type_lang_map->MAP() ) [str_type] = mk_somap_obj();
( *containerMap->MAP() ) [ *container ] = type_lang_map;
}
if ( definition->at ( str_reverse )->BOOL() ) {
psomap typeMap = type_lang_map->MAP()->at ( str_type )->MAP();
if ( !hasreverse ( typeMap ) ) ( * typeMap ) [str_reverse] = make_shared<string_obj> ( term );
} else if ( hastype ( definition ) ) {
psomap typeMap = gettype ( type_lang_map )->MAP();
if ( !has ( typeMap, gettype ( definition )->STR() ) ) ( *typeMap ) [ *gettype ( definition )->STR() ] = make_shared<string_obj> ( term );
} else if ( haslang ( definition ) ) {
psomap lang_map = gettype ( type_lang_map )->MAP();
pstring language = getlang ( definition )->STR();
if ( !language ) ( *definition ) [str_lang] = mk_str_obj ( language = pstr ( L"@null" ) );
if ( !has ( lang_map, language ) ) ( *lang_map ) [ *language ] = make_shared<string_obj> ( term );
} else {
psomap lang_map = getlang ( type_lang_map )->MAP();
if ( !haslang ( lang_map ) ) ( * lang_map ) [str_lang] = make_shared<string_obj> ( term );
if ( !hasnone ( lang_map ) ) ( * lang_map ) [L"@none"] = make_shared<string_obj> ( term );
psomap typeMap = gettype ( type_lang_map )->MAP();
if ( !hasnone ( typeMap ) ) ( *typeMap ) [L"@none"] = make_shared<string_obj> ( term );
}
}
return inverse;
}
pstring context_t::selectTerm ( string iri, std::vector<string>& containers, string typeLanguage, std::vector<string>& preferredValues ) {
auto inv = getInverse();
auto containerMap = inv->MAP()->at ( iri )->MAP();
for ( string container : containers ) {
if ( !has ( containerMap, container ) ) continue;
auto type_lang_map = containerMap->at ( container )->MAP();
auto valueMap = type_lang_map ->at ( typeLanguage )->MAP();
for ( string item : preferredValues ) {
if ( !has ( valueMap, item ) ) continue;
return valueMap->at ( item )->STR();
}
}
return 0;
}
pobj context_t::expandValue ( pstring act_prop, pobj value ) {
somap rval;
psomap td = has ( term_defs, act_prop ) ? term_defs->at ( *act_prop )->MAP() : 0;
if ( hastype ( td ) ) {
if ( *gettype ( td )->STR() == str_id ) {
rval[ str_id ] = make_shared<string_obj> ( expand_iri ( pstr ( value->toString() ), true, false, 0, 0 ) );
return mk_somap_obj ( rval );
}
if ( *gettype ( td )->STR() == str_vocab ) {
rval[ str_id ] = make_shared<string_obj> ( expand_iri ( pstr ( value->toString() ), true, true, 0, 0 ) );
return mk_somap_obj ( rval );
}
}
rval[ str_value ] = value;
if ( td && hastype ( td ) ) rval[ str_type ] = gettype ( td );
else if ( value->STR() ) {
if ( td && haslang ( td ) ) {
pstring lang = getlang ( td )->STR();
if ( lang ) rval[ str_lang] = make_shared<string_obj> ( lang );
} else if ( haslang ( MAP() ) ) rval[ str_lang ] = getlang ( MAP() );
}
return mk_somap_obj ( rval );
}
map<string, string> context_t::getPrefixes ( bool onlyCommonPrefixes ) {
map<string, string> prefixes;
for ( auto x : *term_defs ) {
string term = x.first;
if ( term.find ( L":" ) != string::npos ) continue;
psomap td = term_defs->at ( term )->MAP();
if ( !td ) continue;
pstring id = td->at ( str_id )->STR();
if ( !id ) continue;
if ( startsWith ( term, L"@" ) || startsWith ( *id, L"@" ) ) continue;
if ( !onlyCommonPrefixes || endsWith ( *id, L"/" ) || endsWith ( *id, L"#" ) ) prefixes[term] = *id;
}
return prefixes;
}
bool jsonld_api::deepCompare ( pobj v1, pobj v2, bool listOrderMatters ) {
if ( !v1 ) return !v2;
if ( !v2 ) return !v1;
if ( v1->MAP() && v2->MAP() ) {
psomap m1 = v1->MAP(), m2 = v2->MAP();
if ( m1->size() != m2->size() ) return false;
for ( auto x : *m1 )
if ( !has ( m2, x.first ) || !deepCompare ( x.second, m2->at ( x.first ), listOrderMatters ) )
return false;
return true;
} else if ( v1->LIST() && v2->LIST() ) {
polist l1 = v1->LIST(), l2 = v2->LIST();
if ( l1->size() != l2->size() )
return false;
// used to mark members of l2 that we have already matched to avoid
// matching the same item twice for lists that have duplicates
bool *alreadyMatched = new bool[l2->size()];
for ( size_t i = 0; i < l1->size(); ++i ) {
pobj o1 = l1->at ( i );
bool gotmatch = false;
if ( listOrderMatters ) gotmatch = deepCompare ( o1, l2->at ( i ), listOrderMatters );
else for ( size_t j = 0; j < l2->size(); j++ )
if ( !alreadyMatched[j] && deepCompare ( o1, l2->at ( j ), listOrderMatters ) ) {
alreadyMatched[j] = true;
gotmatch = true;
break;
}
delete[] alreadyMatched;
if ( !gotmatch ) return false;
}
return true;
} else return equals ( v1, v2 );
}
pobj jsonld_api::expand ( pcontext act_ctx, pstring act_prop, pobj element ) {
pobj result;
if ( !element ) result = 0;
else if ( ! ( element->LIST() || element->MAP() ) )
result = ( !act_prop || *act_prop == str_graph ) ? 0 : act_ctx->expandValue ( act_prop, element );
else if ( element->LIST() ) {
result = mk_olist_obj();
for ( pobj item : *element->LIST() ) {
pobj v = expand ( act_ctx, act_prop, item );
if ( act_prop && ( ( *act_prop == str_list || ( act_ctx->getContainer ( act_prop ) && *act_ctx->getContainer ( act_prop ) == str_list ) ) )
&& ( v->LIST() || ( v->MAP() && has ( v->MAP(), str_list ) ) ) ) throw Ex19;
if ( v ) add_all ( result->LIST(), v );
}
} else if ( element->MAP() ) {
psomap elem = element->MAP();
if ( elem->find ( str_context ) != elem->end() ) act_ctx = act_ctx->parse ( elem->at ( str_context ) );
result = mk_somap_obj();
for ( auto x : *elem ) {
string key = x.first;
pobj value = x.second;
if ( key == str_context ) continue;
pstring exp_prop = act_ctx->expand_iri ( pstr ( key ), true/*? false*/, true, 0, 0 );
pobj exp_val = 0;
if ( !exp_prop || ( ( ( *exp_prop ) [0] != '?'/* vars support - out of spec */ && exp_prop->find ( L":" ) == string::npos ) && !keyword ( *exp_prop ) ) ) continue;
if ( keyword ( *exp_prop ) ) {
if ( act_prop && *act_prop == str_reverse ) throw Ex12;
if ( has ( result, exp_prop ) ) throw wruntime_error ( COLLIDING_KEYWORDS + tab + *exp_prop + string ( L" already exists in result" ) );
if ( *exp_prop == str_id ) {
if ( !value->STR() ) throw Ex13;
exp_val = make_shared <string_obj> ( act_ctx->expand_iri ( value->STR(), true, false, 0, 0 ) );
} else if ( *exp_prop == str_type ) {
if ( value->LIST() ) {
exp_val = mk_olist_obj();
for ( pobj v : *value->LIST() ) {
if ( !v->STR() ) throw Ex14;
exp_val->LIST()->push_back ( make_shared <string_obj> ( act_ctx->expand_iri ( v->STR(), true, true, 0, 0 ) ) );
}
} else if ( value->STR() )
exp_val = make_shared <string_obj> ( act_ctx->expand_iri ( value->STR(), true, true, 0, 0 ) );
else if ( value->MAP() ) {
if ( value->MAP()->size() ) throw Ex15;
exp_val = value;
} else throw Ex16;
} else if ( *exp_prop == str_graph ) exp_val = expand ( act_ctx, pstr ( str_graph ), value );
else if ( *exp_prop == str_value ) {
if ( value && ( value->MAP() || value->LIST() ) )
throw wruntime_error ( INVALID_VALUE_OBJECT_VALUE + tab + string ( L"value of " ) + *exp_prop + string ( L" must be a scalar or null" ) );
if ( ! ( exp_val = value ) ) {
( *result->MAP() ) [str_value] = 0;
continue;
}
} else if ( *exp_prop == str_lang ) {
if ( !value->STR() )
throw wruntime_error (
INVALID_LANGUAGE_TAGGED_STRING + tab
+ string ( L"Value of " ) + *exp_prop
+ string ( L" must be a string" ) );
exp_val = make_shared <string_obj
> ( lower ( *value->STR() ) );
} else if ( *exp_prop == str_index ) {
if ( !value->STR() )
throw wruntime_error (
INVALID_INDEX_VALUE + tab
+ string ( L"Value of " ) + *exp_prop
+ string ( L" must be a string" ) );
exp_val = value;
} else if ( *exp_prop == str_list ) {
if ( act_prop && *act_prop == str_graph )
continue;
exp_val = expand ( act_ctx, act_prop, value );
if ( !exp_val->LIST() )
exp_val = mk_olist_obj ( olist ( 1, exp_val ) );
for ( auto o : *exp_val->LIST() )
if ( o->MAP() && has ( o->MAP(), str_list ) ) throw Ex17;
} else if ( *exp_prop == str_set )
exp_val = expand ( act_ctx, act_prop, value );
else if ( *exp_prop == str_reverse ) {
if ( !value->MAP() ) throw Ex18;
exp_val = expand ( act_ctx, pstr ( str_reverse ), value );
if ( has ( exp_val->MAP(), str_reverse ) ) {
psomap reverse =
exp_val->MAP()->at ( str_reverse )->MAP();
for ( auto z : *reverse ) {
string property = z.first;
pobj item = z.second;
if ( !has ( result, property ) )
( *result->MAP() ) [property] = mk_olist_obj();
add_all ( result->MAP()->at ( property )->LIST(),
item );
}
}
if ( exp_val->MAP()->size()
> ( has ( exp_val->MAP(), str_reverse ) ? 1 : 0 ) ) {
if ( !has ( result->MAP(), str_reverse ) )
( *result->MAP() ) [str_reverse] = mk_somap_obj();
psomap reverseMap =
result->MAP()->at ( str_reverse )->MAP();
for ( auto t : *exp_val->MAP() ) {
string property = t.first;
if ( property == str_reverse )
continue;
polist items =
exp_val->MAP()->at ( property )->LIST();
for ( pobj item : *items ) {
if ( has ( item->MAP(), str_value )
|| has ( item->MAP(), str_list ) )
throw wruntime_error (
INVALID_REVERSE_PROPERTY_VALUE );
if ( !has ( reverseMap, property ) )
( *reverseMap ) [property] =
mk_olist_obj();
reverseMap->at ( property )->LIST()->push_back (
item );
}
}
}
continue;
} else if ( is ( exp_prop, { str_explicit, str_default,
str_embed, str_embedChildren, str_omitDefault
} ) )
exp_val = expand ( act_ctx, exp_prop, value );
if ( exp_val )
( *result->MAP() ) [*exp_prop] = exp_val;
continue;
} else if ( act_ctx->getContainer ( key )
&& *act_ctx->getContainer ( key ) == str_lang
&& value->MAP() ) {
exp_val = mk_olist_obj();
for ( auto yy : *value->MAP() ) {
string language = yy.first;
pobj languageValue = yy.second;
if ( !languageValue->LIST() )
languageValue = mk_olist_obj (
olist ( 1, languageValue ) );
for ( pobj item : *languageValue->LIST() ) {
if ( !item->STR() )
throw wruntime_error (
INVALID_LANGUAGE_MAP_VALUE + tab
+ string ( L"Expected " )
+ item->toString()
+ string ( L" to be a string" ) );
somap tmp;
tmp[str_value] = item;
tmp[str_lang] = make_shared <string_obj
> ( lower ( language ) );
exp_val->LIST()->push_back ( mk_somap_obj ( tmp ) );
}
}
} else if ( act_ctx->getContainer ( key )
&& *act_ctx->getContainer ( key ) == str_index
&& value->MAP() ) {
exp_val = mk_olist_obj();
for ( auto xx : *value->MAP() ) {
pobj indexValue = xx.second;
if ( !indexValue->LIST() )
indexValue = mk_olist_obj ( olist ( 1, indexValue ) );
indexValue = expand ( act_ctx, pstr ( key ), indexValue );
for ( pobj item : *indexValue->LIST() ) {
if ( !has ( item->MAP(), str_index ) )
( *item->MAP() ) [str_index] = make_shared
<string_obj> ( xx.first );
exp_val->LIST()->push_back ( item );
}
}
} else
exp_val = expand ( act_ctx, pstr ( key ), value );
if ( !exp_val )
continue;
if ( act_ctx->getContainer ( key )
&& *act_ctx->getContainer ( key ) == str_list
&& !has ( exp_val->MAP(), str_list ) ) {
auto tmp = exp_val;
if ( !tmp->LIST() )
tmp = mk_olist_obj ( olist ( 1, tmp ) );
exp_val = mk_somap_obj();
( *exp_val->MAP() ) [str_list] = tmp;
} else {
if ( act_ctx->isReverseProperty ( key ) ) {
if ( !hasreverse ( result ) )
( *result->MAP() ) [str_reverse] = mk_somap_obj();
psomap reverseMap = getreverse ( result )->MAP();
if ( !exp_val->LIST() )
exp_val = mk_olist_obj ( olist ( 1, exp_val ) );
for ( pobj item : *exp_val->LIST() ) {
if ( hasvalue ( item->MAP() ) && haslist ( item->MAP() ) )
throw INVALID_REVERSE_PROPERTY_VALUE;
if ( !has ( reverseMap, exp_prop ) )
( *reverseMap ) [*exp_prop] = mk_olist_obj();
add_all ( reverseMap->at ( *exp_prop )->LIST(), item );
}
} else {
if ( !has ( result, exp_prop ) )
( *result->MAP() ) [*exp_prop] = mk_olist_obj();
add_all ( result->MAP()->at ( *exp_prop )->LIST(), exp_val );
}
}
}
if ( hasvalue ( result ) ) {
somap ks = *result->MAP();
if ( hasvalue ( ks ) )
ks.erase ( str_value );
if ( hasindex ( ks ) )
ks.erase ( str_index );
bool langremoved = haslang ( ks ), typeremoved = hastype ( ks );
if ( langremoved )
ks.erase ( str_lang );
if ( typeremoved )
ks.erase ( str_type );
if ( ( langremoved && typeremoved ) || ks.size() )
throw wruntime_error (
INVALID_VALUE_OBJECT + tab
+ string ( L"value object has unknown keys" ) );
pobj rval = getvalue ( result );
if ( !rval )
result = 0;
else if ( !rval->STR() && haslang ( result ) )
throw wruntime_error (
INVALID_LANGUAGE_TAGGED_VALUE + tab
+ string (
L"when @language is used, @value must be a string" ) );
else if ( hastype ( result ) )
if ( ! ( gettype ( result )->STR() )
|| startsWith ( *gettype ( result )->STR(), L"_:" )
|| gettype ( result )->STR()->find ( L":" )
== string::npos )
throw wruntime_error (
INVALID_TYPED_VALUE + tab
+ string (
L"value of @type must be an IRI" ) );
} else if ( hastype ( result ) ) {
pobj rtype = gettype ( result );
if ( !rtype->LIST() )
( *result->MAP() ) [str_type] = mk_olist_obj ( olist ( 1, rtype ) );
} else if ( hasset ( result ) || haslist ( result ) ) {
if ( result->MAP()->size() > ( hasindex ( result ) ? 2 : 1 ) )
throw wruntime_error (
INVALID_SET_OR_LIST_OBJECT + tab
+ string (
L"@set or @list may only contain @index" ) );
if ( hasset ( result ) )
result = getset ( result );
}
if ( haslang ( result ) && result->MAP()->size() == 1 )
result = 0;
if ( !act_prop || *act_prop == str_graph ) {
if ( result
&& ( ( !result->MAP()->size() || hasvalue ( result )
|| haslist ( result ) ) ) )
result = 0;
else if ( result && hasid ( result ) && result->MAP()->size() == 1 )
result = 0;
}
}
if ( result && result->MAP() && result->MAP()->size() == 1
&& hasgraph ( result ) )
result = getgraph ( result );
if ( !result )
result = mk_olist_obj();
if ( !result->LIST() )
result = mk_olist_obj ( olist ( 1, result ) );
return result;
}
void jsonld_api::gen_node_map ( pobj element, psomap nodeMap, string activeGraph, pobj activeSubject, pstring act_prop, psomap list ) {
if ( !element ) return;
if ( element->LIST() ) {
for ( pobj item : *element->LIST() ) gen_node_map ( item, nodeMap, activeGraph, activeSubject, act_prop, list );
return;
}
psomap elem = element->MAP();
if ( !has ( nodeMap, activeGraph ) ) ( *nodeMap ) [activeGraph] = mk_somap_obj();
psomap graph = nodeMap->at ( activeGraph )->MAP(), node = ( activeSubject && activeSubject->STR() ) ? graph->at ( *activeSubject->STR() )->MAP() : 0;
if ( hastype ( elem ) ) {
std::vector<string> oldTypes, newTypes;
if ( gettype ( elem )->LIST() ) oldTypes = vec2vec ( gettype ( elem )->LIST() );
else {
oldTypes = std::vector<string>(); //mk_olist_obj();
oldTypes.push_back ( *elem->at ( str_type )->STR() );
}
for ( string item : oldTypes ) {
if ( startsWith ( item, L"_:" ) ) newTypes.push_back ( *gen_bnode_id ( item ) );
else newTypes.push_back ( item );
}
( *elem ) [str_type] = gettype ( elem )->LIST() ? ( pobj ) mk_olist_obj ( vec2vec ( newTypes ) ) : make_shared <string_obj> ( newTypes[0] );
}
if ( hasvalue ( elem ) ) {
if ( !list ) mergeValue ( node, act_prop, element );
else mergeValue ( list, str_list, element );
} else if ( haslist ( elem ) ) {
psomap result = make_shared<somap>();
( *result ) [str_list] = mk_olist_obj();
gen_node_map ( getlist ( elem ), nodeMap, activeGraph, activeSubject, act_prop, result );
mergeValue ( node, act_prop, mk_somap_obj ( result ) );
} else {
string id;
if ( hasid ( elem ) && elem->at ( str_id ) && elem->at ( str_id )->STR() ) {
id = *elem->at ( str_id )->STR();
elem->erase ( str_id );
if ( startsWith ( id, L"_:" ) ) id = *gen_bnode_id ( id );
} else id = *gen_bnode_id();
if ( !has ( graph, id ) ) {
somap tmp;
tmp[str_id] = make_shared <string_obj> ( id );
( *graph ) [id] = mk_somap_obj ( tmp );
}
if ( activeSubject && activeSubject->MAP() ) mergeValue ( get ( graph, id )->MAP(), act_prop, activeSubject );
else if ( act_prop ) {
somap ref;
ref[str_id] = make_shared <string_obj> ( id );
if ( !list ) mergeValue ( node, act_prop, mk_somap_obj ( ref ) );
else mergeValue ( list, str_list, mk_somap_obj ( ref ) );
}
node = graph->at ( id )->MAP();
if ( hastype ( elem ) ) {
if ( gettype ( elem )->LIST() )
for ( pobj type : *gettype ( elem )->LIST() )
if ( type ) mergeValue ( node, str_type, type );
elem->erase ( str_type );
}
if ( hasindex ( elem ) ) {
pobj elemIndex = getindex ( elem );
elem->erase ( str_index );
if ( hasindex ( node ) ) {
if ( !deepCompare ( getindex ( node ), elemIndex ) ) throw CONFLICTING_INDEXES;
} else ( *node ) [str_index] = elemIndex;
}
if ( hasreverse ( elem ) ) {
psomap refnode = make_shared<somap>(), revmap = elem->at ( str_reverse )->MAP();
( *refnode ) [str_id] = make_shared <string_obj> ( id );
elem->erase ( str_reverse );
if ( revmap )
for ( auto x : *revmap ) {
string prop = x.first;
polist values = revmap->at ( prop )->LIST();
if ( values ) for ( pobj value : *values )
gen_node_map ( value, nodeMap, activeGraph, mk_somap_obj ( refnode ), make_shared <string> ( prop ), 0 );
}
}
if ( hasgraph ( elem ) ) {
gen_node_map ( getgraph ( elem ), nodeMap, id, 0, 0, 0 );
elem->erase ( str_graph );
}
// final List<String> keys = new ArrayList<String> ( elem.keySet() );
// Collections.sort ( keys );
if ( elem )
for ( auto z : *elem ) {
string property = z.first;
pobj value = z.second;
if ( startsWith ( property, L"_:" ) ) property = *gen_bnode_id ( property );
if ( !has ( node, property ) ) ( *node ) [property] = mk_olist_obj();
gen_node_map ( value, nodeMap, activeGraph, make_shared <string_obj> ( id ), make_shared <string> ( property ), 0 );
}
}
}
void jsonld_api::gen_node_map ( pobj element, psomap nodeMap ) {
gen_node_map ( element, nodeMap, str_default, pobj(), pstring(), psomap() );
}
prdf_db jsonld_api::toRDF() {
psomap nodeMap = make_shared<somap>();
( *nodeMap ) [str_default] = mk_somap_obj();
gen_node_map ( value, nodeMap );
rdf_db r ( *this );
for ( auto g : *nodeMap ) {
if ( is_rel_iri ( g.first ) )
continue;
r.graph_to_rdf ( g.first, *g.second->MAP() );
}
return make_shared <rdf_db> ( r );
}
prdf_db jsonld_api::toRDF ( pobj input, jsonld_options options ) {
pobj expandedInput = ::expand ( input, options );
jsonld_api api ( expandedInput, options );
prdf_db dataset = api.toRDF();
// generate namespaces from context
if ( options.useNamespaces ) {
polist _input;
if ( expandedInput->LIST() )
_input = expandedInput->LIST();
else {
_input = mk_olist();
_input->push_back ( expandedInput );
}
for ( auto e : *_input )
if ( hascontext ( e ) )
dataset->parse_ctx ( getcontext ( e ) );
}
return dataset;
}
pobj expand ( pobj input, jsonld_options opts ) {
if ( !input ) return 0;
// if ( input->STR() && input->STR()->find ( L":" ) != string::npos ) {
// input = load ( *input->STR() ).document;
// if ( !opts.base )
// opts.base = pstr ( *input->STR() );
// }
std::shared_ptr<context_t> act_ctx = make_shared <context_t> ( opts );
if ( opts.expandContext ) {
if ( opts.expandContext->MAP()
&& has ( opts.expandContext->MAP(), str_context ) )
opts.expandContext = opts.expandContext->MAP()->at ( str_context );
act_ctx = act_ctx->parse ( opts.expandContext );
}
auto expanded = jsonld_api ( opts ).expand ( act_ctx, 0, input );
if ( hasgraph ( expanded ) )
expanded = getgraph ( expanded );
else if ( !expanded )
expanded = mk_olist_obj();
if ( !expanded->LIST() )
expanded = mk_olist_obj ( olist ( 1, expanded ) );
return expanded;
}
size_t write_data ( void *ptr, size_t size, size_t n, void *stream ) {
std::string data ( ( const char* ) ptr, ( size_t ) size * n );
* ( ( std::stringstream* ) stream ) << data << std::endl;
return size * n;
}
//string download ( const string& url ) {
// static const string ACCEPT_HEADER =
// L"application/ld+json, application/json;q=0.9, application/javascript;q=0.5, text/javascript;q=0.5, text/plain;q=0.2, */*;q=0.1";
// struct curl_slist *headers = 0;
// headers = curl_slist_append ( headers, "Content-Type: text/xml" );
// curl_easy_setopt ( curl, CURLOPT_HTTPHEADER, headers );
// curl_easy_setopt ( curl, CURLOPT_URL, url.c_str() );
// curl_easy_setopt ( curl, CURLOPT_FOLLOWLOCATION, 1L );
// curl_easy_setopt ( curl, CURLOPT_NOSIGNAL, 1 );
// curl_easy_setopt ( curl, CURLOPT_ACCEPT_ENCODING, "deflate" );
// std::wstringstream out;
// curl_easy_setopt ( curl, CURLOPT_WRITEFUNCTION, write_data );
// curl_easy_setopt ( curl, CURLOPT_WRITEDATA, &out );
// CURLcode res = curl_easy_perform ( curl );
// if ( res != CURLE_OK )
// throw std::runtime_error (
// std::string ( "curl_easy_perform() failed: " )
// + curl_easy_strerror ( res ) );
// string r = out.str();
// dout << L"downloaded file: " << r << std::endl;
// return r;
//}
//
//pobj fromURL ( const string& url ) {
// json_spirit::wmValue r;
// json_spirit::read_string ( download ( url ), r );
// return convert ( r );
//}
//
//remote_doc_t load ( const string& url ) {
// pobj p;
// remote_doc_t doc ( url, p );
// try {
// doc.document = fromURL ( url );
// } catch ( ... ) {
// throw wruntime_error ( LOADING_REMOTE_CONTEXT_FAILED + tab + url );
// }
// return doc;
//}
json_spirit::wmValue convert ( obj& v ) {
typedef json_spirit::wmValue val;
val r;
if ( v.UINT() ) return val ( *v.UINT() );
if ( v.INT() ) return val ( *v.INT() );
if ( v.STR() ) return val ( *v.STR() );
if ( v.DOUBLE() ) return val ( *v.DOUBLE() );
if ( v.BOOL() ) return val ( *v.BOOL() );
else if ( v.LIST() ) {
val::Array a;
for ( auto x : *v.LIST() ) a.push_back ( convert ( *x ) );
return val ( a );
} else {
if ( !v.MAP() ) throw "logic error";
val::Object a;
for ( auto x : *v.MAP() ) a[x.first] = convert ( *x.second );
return val ( a );
}
}
json_spirit::wmValue convert ( pobj v ) {
return convert ( *v );
}
pobj convert ( const json_spirit::wmValue& v ) {
using namespace std;
pobj r;
if ( v.is_uint64() ) r = make_shared<uint64_t_obj> ( v.get_uint64() );
else if ( v.isInt() ) r = make_shared<int64_t_obj> ( v.get_int64() );
else if ( v.isString() ) r = make_shared<string_obj> ( v.get_str() );
else if ( v.isDouble() ) r = make_shared<double_obj> ( v.get_real() );
else if ( v.isBoolean() ) r = make_shared<bool_obj> ( v.get_bool() );
else if ( v.is_null() ) r = 0;
else if ( v.isList() ) {
r = make_shared<olist_obj>();
auto a = v.get_array();
for ( auto x : a ) r->LIST()->push_back ( convert ( x ) );
} else {
if ( !v.isMap() ) throw "logic error";
r = make_shared<somap_obj>();
auto a = v.get_obj();
for ( auto x : a ) ( *r->MAP() ) [x.first] = convert ( x.second );
}
return r;
}
pstring removeBase ( pobj, string ) {
return pstr ( L"" );
}
pstring removeBase ( pobj o, pstring iri ) {
return removeBase ( o, *iri );
}
bool equals ( const obj& a, const obj& b ) {
return a.equals ( b );
}
bool equals ( const pobj& a, const pobj& b ) {
return a->equals ( *b );
}
bool equals ( const pobj& a, const obj& b ) {
return a->equals ( b );
}
bool equals ( const obj& a, const pobj& b ) {
return a.equals ( *b );
}
pobj get ( psomap p, string k ) {
if ( !p ) return 0;
auto it = p->find ( k );
return it == p->end() ? 0 : it->second;
}
bool keyword ( const string& key ) {
return str_base == key || str_context == key || str_container == key
|| str_default == key || str_embed == key || str_explicit == key
|| str_graph == key || str_id == key || str_index == key
|| str_lang == key || str_list == key || str_omitDefault == key
|| str_reverse == key || str_preserve == key || str_set == key
|| str_type == key || str_value == key || str_vocab == key;
}
bool keyword ( pstring key ) {
return key ? keyword ( *key ) : false;
}
pobj& getlang ( pobj p ) {
return p->MAP()->at ( str_lang );
}
pobj& getlang ( obj& p ) {
return p.MAP()->at ( str_lang );
}
pobj& getlang ( psomap p ) {
return p->at ( str_lang );
}
pobj& getlang ( somap p ) {
return p.at ( str_lang );
}
bool keyword ( pobj p ) {
if ( !p || !p->STR() ) return false;
return keyword ( *p->STR() );
}
bool is_abs_iri ( const string& s ) {
return ( s.find ( L":" ) != string::npos ) || ( s.size() && s[0] == L'?' );
}
bool is_rel_iri ( const string& s ) {
return ( ! ( keyword ( s ) || is_abs_iri ( s ) ) );// || (s.size() && s[0] == '?');
}
pobj newMap ( const string& k, pobj v ) {
pobj r = mk_somap_obj();
( *r->MAP() ) [k] = v;
return r;
}
bool isvalue ( pobj v ) {
return v && v->MAP() && hasvalue ( v->MAP() );
}
polist vec2vec ( const std::vector<string>& x ) {
polist res = mk_olist();
for ( auto t : x ) res->push_back ( make_shared <string_obj> ( t ) );
return res;
}
std::vector<string> vec2vec ( polist x ) {
std::vector<string> res;
for ( auto t : *x ) res.push_back ( *t->STR() );
return res;
}
void add_all ( polist l, pobj v ) {
if ( v->LIST() ) l->insert ( l->end(), v->LIST()->begin(), v->LIST()->end() );
else l->push_back ( v );
}
context_t::context_t ( const jsonld_options& o ) :
somap_obj(), options ( o ) {
if ( options.base ) ( *MAP() ) [ L"@base" ] = make_shared <string_obj> ( *options.base );
}
pstring context_t::getContainer ( string prop ) {
if ( prop == str_graph ) return pstr ( str_set );
if ( keyword ( prop ) ) return pstr ( prop );
auto it = term_defs->find ( prop );
return it == term_defs->end() ? 0 : it->second->STR();
}
pstring context_t::getContainer ( pstring prop ) {
return getContainer ( *prop );
}
pstring context_t::get_type_map ( const string& prop ) {
auto td = term_defs->find ( prop );
return td == term_defs->end() || !td->second->MAP() ? 0 : gettype ( td->second )->STR();
}
pstring context_t::get_lang_map ( const string& prop ) {
auto td = term_defs->find ( prop );
return td == term_defs->end() || !td->second->MAP() ? 0 : getlang ( td->second )->STR();
}
psomap context_t::get_term_def ( const string& key ) {
return term_defs->at ( key )->MAP();
}
int context_t::compareShortestLeast ( const string& a, const string& b ) {
if ( a.length() < b.length() ) return -1;
else if ( b.length() < a.length() ) return 1;
return a == b ? 0 : a < b ? -1 : 1;
}
int context_t::compareShortestLeast ( pstring a, pstring b ) {
return !a && !b ? 0 : a && !b ? 1 : !a && b ? -1 : compareShortestLeast ( *a, *b );
}
int context_t::compareShortestLeast ( string a, pstring b ) {
return !b ? 1 : compareShortestLeast ( a, *b );
}
int context_t::compareShortestLeast ( pstring a, string b ) {
return !a ? -1 : compareShortestLeast ( *a, b );
}
bool context_t::isReverseProperty ( string prop ) {
auto it = term_defs->find ( prop );
if ( it == term_defs->end() || !it->second->MAP() ) return false;
auto r = it->second->MAP()->at ( str_reverse );
return r && r->BOOL() && *r->BOOL();
}
jsonld_api::jsonld_api ( pobj input, jsonld_options opts ) : jsonld_api ( opts ) {
initialize ( input, 0 );
}
void jsonld_api::initialize ( pobj input, pobj context_ ) {
if ( input && ( input->LIST() || input->MAP() ) ) value = input->clone();
context = make_shared<context_t>();
if ( context ) context = context->parse ( context_ );
}
bool jsonld_api::deepContains ( polist values, pobj value ) {
for ( pobj item : *values ) if ( deepCompare ( item, value, false ) ) return true;
return false;
}
void jsonld_api::mergeValue ( psomap obj, pstring key, pobj value ) {
if ( obj && key ) mergeValue ( *obj, *key, value );
}
void jsonld_api::mergeValue ( psomap obj, string key, pobj value ) {
if ( obj ) mergeValue ( *obj, key, value );
}