int fs_metadata_flush(fs_metadata *m)
{
raptor_serializer *ser = raptor_new_serializer(m->rw, "turtle");
if (!ser) {
fs_error(LOG_CRIT, "cannot create turtle serialiser for metadata");
return 1;
}
raptor_serializer_start_to_filename(ser, m->uri+7);
raptor_statement st;
for (int e=0; e < m->length; e++) {
st.subject = raptor_new_term_from_uri_string(m->rw, (unsigned char *)m->uri);
st.predicate = raptor_new_term_from_uri_string(m->rw, (unsigned char *)m->entries[e].key);
st.object = raptor_new_term_from_literal(m->rw,
(unsigned char *)m->entries[e].val, NULL, NULL);
raptor_serializer_serialize_statement(ser, &st);
raptor_free_term(st.subject);
raptor_free_term(st.predicate);
raptor_free_term(st.object);
}
raptor_serializer_serialize_end(ser);
raptor_free_serializer(ser);
return 0;
}
static int
print_graph_result(rasqal_query* rq,
rasqal_query_results *results,
raptor_world* raptor_world_ptr,
FILE* output,
const char* serializer_syntax_name, raptor_uri* base_uri,
int quiet)
{
int triple_count = 0;
rasqal_prefix* prefix;
int i;
raptor_serializer* serializer = NULL;
if(!quiet)
fprintf(stderr, "%s: Query has a graph result:\n", program);
if(!raptor_world_is_serializer_name(raptor_world_ptr, serializer_syntax_name)) {
fprintf(stderr,
"%s: invalid query result serializer name `%s' for `" HELP_ARG(r, results) "'\n",
program, serializer_syntax_name);
return 1;
}
serializer = raptor_new_serializer(raptor_world_ptr,
serializer_syntax_name);
if(!serializer) {
fprintf(stderr, "%s: Failed to create raptor serializer type %s\n",
program, serializer_syntax_name);
return(1);
}
/* Declare any query namespaces in the output serializer */
for(i = 0; (prefix = rasqal_query_get_prefix(rq, i)); i++)
raptor_serializer_set_namespace(serializer, prefix->uri, prefix->prefix);
raptor_serializer_start_to_file_handle(serializer, base_uri, output);
while(1) {
raptor_statement *rs = rasqal_query_results_get_triple(results);
if(!rs)
break;
raptor_serializer_serialize_statement(serializer, rs);
triple_count++;
if(rasqal_query_results_next_triple(results))
break;
}
raptor_serializer_serialize_end(serializer);
raptor_free_serializer(serializer);
if(!quiet)
fprintf(stderr, "%s: Total %d triples\n", program, triple_count);
return 0;
}
static void
ser_emit_finish(void* user_data)
{
raptor_serializer* serializer = (raptor_serializer*)user_data;
raptor_serializer_serialize_end(serializer);
}
int
main(int argc, char *argv[])
{
raptor_world *world = NULL;
raptor_parser* rdf_parser = NULL;
unsigned char *uri_string;
raptor_uri *uri;
raptor_uri *base_uri;
int rc = 0;
int free_uri_string = 0;
rdf_serializer = NULL;
if(argc < 2 || argc > 3) {
fprintf(stderr, "USAGE: %s RDF-FILE [BASE-URI]\n", program);
rc = 1;
goto tidy;
}
world = raptor_new_world();
uri_string = (unsigned char*)argv[1];
if(!access((const char*)uri_string, R_OK)) {
uri_string = raptor_uri_filename_to_uri_string((char*)uri_string);
uri = raptor_new_uri(world, uri_string);
free_uri_string = 1;
} else {
uri = raptor_new_uri(world, (const unsigned char*)uri_string);
}
if(argc == 3) {
char* base_uri_string = argv[2];
base_uri = raptor_new_uri(world, (unsigned char*)(base_uri_string));
} else {
base_uri = raptor_uri_copy(uri);
}
rdf_parser = raptor_new_parser(world, "guess");
raptor_world_set_log_handler(world, rdf_parser, to_ntriples_log_handler);
raptor_parser_set_statement_handler(rdf_parser, NULL,
to_ntriples_write_triple);
rdf_serializer = raptor_new_serializer(world, "ntriples");
raptor_serializer_start_to_file_handle(rdf_serializer, base_uri, stdout);
raptor_parser_parse_file(rdf_parser, uri, base_uri);
raptor_serializer_serialize_end(rdf_serializer);
raptor_free_serializer(rdf_serializer);
raptor_free_parser(rdf_parser);
raptor_free_uri(base_uri);
raptor_free_uri(uri);
if(free_uri_string)
raptor_free_memory(uri_string);
raptor_free_world(world);
tidy:
if(warning_count)
rc = 2;
else if(error_count)
rc = 1;
return rc;
}
