int add_triple_typed(librdf_world *world, librdf_node *context, librdf_model* model, const char *s, const char *p, const char *o) { librdf_node *subject, *predicate, *object; librdf_statement* statement=NULL; int rc; if(librdf_heuristic_is_blank_node(s)) subject=librdf_new_node_from_blank_identifier(world, (const unsigned char *)librdf_heuristic_get_blank_node(s)); else subject=librdf_new_node_from_uri_string(world, (const unsigned char *)s); predicate=librdf_new_node_from_uri_string(world, (const unsigned char *)p); if(librdf_heuristic_is_blank_node(o)) object=librdf_new_node_from_blank_identifier(world, (const unsigned char *)librdf_heuristic_get_blank_node(o)); else object=librdf_new_node_from_literal(world, (const unsigned char *)o, NULL, 0); statement=librdf_new_statement(world); librdf_statement_set_subject(statement, subject); librdf_statement_set_predicate(statement, predicate); librdf_statement_set_object(statement, object); rc=librdf_model_context_add_statement(model, context, statement); librdf_free_statement(statement); return rc; }
/* * librdf_parser_raptor_new_statement_handler - helper callback function for raptor RDF when a new triple is asserted * @context: context for callback * @statement: raptor_statement * * Adds the statement to the list of statements. */ static void librdf_parser_raptor_new_statement_handler(void *context, raptor_statement *rstatement) { librdf_parser_raptor_stream_context* scontext=(librdf_parser_raptor_stream_context*)context; librdf_node* node; librdf_statement* statement; librdf_world* world=scontext->pcontext->parser->world; int rc; statement=librdf_new_statement(world); if(!statement) return; if(rstatement->subject->type == RAPTOR_TERM_TYPE_BLANK) { node = librdf_new_node_from_blank_identifier(world, (const unsigned char*)rstatement->subject->value.blank.string); } else if (rstatement->subject->type == RAPTOR_TERM_TYPE_URI) { node = librdf_new_node_from_uri(world, (librdf_uri*)rstatement->subject->value.uri); } else { librdf_log(world, 0, LIBRDF_LOG_ERROR, LIBRDF_FROM_PARSER, NULL, "Unknown Raptor subject identifier type %d", rstatement->subject->type); librdf_free_statement(statement); return; } if(!node) { librdf_log(world, 0, LIBRDF_LOG_FATAL, LIBRDF_FROM_PARSER, NULL, "Cannot create subject node"); librdf_free_statement(statement); return; } librdf_statement_set_subject(statement, node); if(rstatement->predicate->type == RAPTOR_TERM_TYPE_URI) { node = librdf_new_node_from_uri(world, (librdf_uri*)rstatement->predicate->value.uri); } else { librdf_log(world, 0, LIBRDF_LOG_ERROR, LIBRDF_FROM_PARSER, NULL, "Unknown Raptor predicate identifier type %d", rstatement->predicate->type); librdf_free_statement(statement); return; } if(!node) { librdf_log(world, 0, LIBRDF_LOG_FATAL, LIBRDF_FROM_PARSER, NULL, "Cannot create predicate node"); librdf_free_statement(statement); return; } librdf_statement_set_predicate(statement, node); if(rstatement->object->type == RAPTOR_TERM_TYPE_LITERAL) { node = librdf_new_node_from_typed_literal(world, rstatement->object->value.literal.string, (const char *)rstatement->object->value.literal.language, (librdf_uri*)rstatement->object->value.literal.datatype); } else if(rstatement->object->type == RAPTOR_TERM_TYPE_BLANK) { node = librdf_new_node_from_blank_identifier(world, rstatement->object->value.blank.string); } else if(rstatement->object->type == RAPTOR_TERM_TYPE_URI) { node = librdf_new_node_from_uri(world, (librdf_uri*)rstatement->object->value.uri); } else { librdf_log(world, 0, LIBRDF_LOG_ERROR, LIBRDF_FROM_PARSER, NULL, "Unknown Raptor object identifier type %d", rstatement->object->type); librdf_free_statement(statement); return; } if(!node) { librdf_log(world, 0, LIBRDF_LOG_FATAL, LIBRDF_FROM_PARSER, NULL, "Cannot create object node"); librdf_free_statement(statement); return; } librdf_statement_set_object(statement, node); #if defined(LIBRDF_DEBUG) && LIBRDF_DEBUG > 1 if(1) { raptor_iostream *iostr; iostr = raptor_new_iostream_to_file_handle(world->raptor_world_ptr, stderr); librdf_statement_write(statement, iostr); raptor_free_iostream(iostr); } #endif if(scontext->model) { if(librdf_model_supports_contexts(scontext->model) && rstatement->graph && (rstatement->graph->type == RAPTOR_TERM_TYPE_URI || rstatement->graph->type == RAPTOR_TERM_TYPE_BLANK)) { node = librdf_new_node_from_uri(world, (librdf_uri*)rstatement->graph->value.uri); rc = librdf_model_context_add_statement(scontext->model, node, statement); librdf_free_node(node); } else { rc = librdf_model_add_statement(scontext->model, statement); } librdf_free_statement(statement); } else { rc=librdf_list_add(scontext->statements, statement); if(rc) librdf_free_statement(statement); } if(rc) { librdf_log(world, 0, LIBRDF_LOG_FATAL, LIBRDF_FROM_PARSER, NULL, "Cannot add statement to model"); } }