From 09e5c017b096bc84bbbc0b273baffd221144213a Mon Sep 17 00:00:00 2001 From: David Robillard Date: Fri, 20 Apr 2007 21:25:38 +0000 Subject: Preliminary categories support. git-svn-id: http://svn.drobilla.net/lad/slv2@465 a436a847-0d15-0410-975c-d299462d15a1 --- src/world.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++----------- 1 file changed, 55 insertions(+), 12 deletions(-) (limited to 'src/world.c') diff --git a/src/world.c b/src/world.c index a682a35..c8735ea 100644 --- a/src/world.c +++ b/src/world.c @@ -44,11 +44,10 @@ slv2_world_new() world->parser = librdf_new_parser(world->world, "turtle", NULL, NULL); + world->categories = slv2_categories_new(); + world->plugins = slv2_plugins_new(); - /*slv2_ontology_uri = raptor_new_uri((const unsigned char*) - "file://" LV2_TTL_PATH);*/ - return world; } @@ -56,14 +55,14 @@ slv2_world_new() void slv2_world_free(SLV2World world) { - /*raptor_free_uri(slv2_ontology_uri); - slv2_ontology_uri = NULL;*/ - for (int i=0; i < raptor_sequence_size(world->plugins); ++i) slv2_plugin_free(raptor_sequence_get_at(world->plugins, i)); raptor_free_sequence(world->plugins); world->plugins = NULL; + slv2_categories_free(world->categories); + world->categories = NULL; + librdf_free_parser(world->parser); world->parser = NULL; @@ -163,29 +162,73 @@ slv2_plugin_compare_by_uri(const void* a, const void* b) } */ + +void +slv2_world_load_categories(SLV2World world) +{ + // FIXME: This will need to be a bit more clever when more data is around + // then the ontology (ie classes which aren't LV2 categories) + + unsigned char* query_string = (unsigned char*) + "PREFIX : \n" + "PREFIX rdfs: \n" + "SELECT DISTINCT ?category ?label\n" + "WHERE { ?category a rdfs:Class; rdfs:label ?label }\n" + "ORDER BY ?category\n"; + + librdf_query* q = librdf_new_query(world->world, "sparql", + NULL, query_string, NULL); + + librdf_query_results* results = librdf_query_execute(q, world->model); + + while (!librdf_query_results_finished(results)) { + librdf_node* category_node = librdf_query_results_get_binding_value(results, 0); + librdf_uri* category_uri = librdf_node_get_uri(category_node); + librdf_node* label_node = librdf_query_results_get_binding_value(results, 1); + const char* label = (const char*)librdf_node_get_literal_value(label_node); + + //printf("CATEGORY: %s (%s)\n", librdf_uri_as_string(category_uri), label); + SLV2Category category = slv2_category_new( + (const char*)librdf_uri_as_string(category_uri), + label); + raptor_sequence_push(world->categories, category); + + librdf_query_results_next(results); + } + +} + + void slv2_world_load_all(SLV2World world) { char* lv2_path = getenv("LV2_PATH"); - /* 1. Read all manifest files into model */ + /* 1. Read LV2 ontology into model */ + librdf_uri* ontology_uri = librdf_new_uri(world->world, + (const unsigned char*)"file://" LV2_TTL_PATH); + librdf_parser_parse_into_model(world->parser, ontology_uri, NULL, world->model); + librdf_free_uri(ontology_uri); + + + /* 2. Read all manifest files into model */ if (lv2_path) { slv2_world_load_path(world, lv2_path); } else { const char* const home = getenv("HOME"); - const char* const suffix = "/.lv2:/usr/local/lib/lv2:usr/lib/lv2"; + const char* const suffix = "/.lv2:/usr/local/lib/lv2:/usr/lib/lv2"; lv2_path = slv2_strjoin(home, suffix, NULL); - //fprintf(stderr, "$LV2_PATH is unset. Using default path %s\n", lv2_path); - slv2_world_load_path(world, lv2_path); free(lv2_path); } - /* 2. Query out things to cache */ + /* 3. Query out things to cache */ + + slv2_world_load_categories(world); // Find all plugins and associated data files unsigned char* query_string = (unsigned char*) @@ -233,7 +276,7 @@ slv2_world_load_all(SLV2World world) librdf_query_results_next(results); } - // ORDER BY should (and appears to actually) guarantee this + // 'ORDER BY ?plugin' guarantees this //raptor_sequence_sort(world->plugins, slv2_plugin_compare_by_uri); if (results) -- cgit v1.2.1