From 45fa5e4b4cd73edadf656471f0557603096d8874 Mon Sep 17 00:00:00 2001 From: David Robillard Date: Thu, 19 Apr 2007 16:53:58 +0000 Subject: Added random autoconf macro the warning said to. Added missing files. git-svn-id: http://svn.drobilla.net/lad/slv2@458 a436a847-0d15-0410-975c-d299462d15a1 --- src/model.c | 321 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 321 insertions(+) create mode 100644 src/model.c (limited to 'src') diff --git a/src/model.c b/src/model.c new file mode 100644 index 0000000..16a1962 --- /dev/null +++ b/src/model.c @@ -0,0 +1,321 @@ +/* SLV2 + * Copyright (C) 2007 Dave Robillard + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * This library is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#define _XOPEN_SOURCE 500 +#include +#include +#include +#include +#include +#include +#include +#include +#include "config.h" +#include "private_types.h" + + +SLV2Model +slv2_model_new() +{ + struct _Model* model = (struct _Model*)malloc(sizeof(struct _Model)); + + model->world = librdf_new_world(); + librdf_world_open(model->world); + + model->storage = librdf_new_storage(model->world, "hashes", NULL, + "hash-type='memory'"); + + model->model = librdf_new_model(model->world, model->storage, NULL); + + model->parser = librdf_new_parser(model->world, "turtle", NULL, NULL); + + model->plugins = slv2_plugins_new(); + + /*slv2_ontology_uri = raptor_new_uri((const unsigned char*) + "file://" LV2_TTL_PATH);*/ + + return model; +} + + +void +slv2_model_free(SLV2Model model) +{ + /*raptor_free_uri(slv2_ontology_uri); + slv2_ontology_uri = NULL;*/ + + slv2_plugins_free(model->plugins); + model->plugins = NULL; + + librdf_free_parser(model->parser); + model->parser = NULL; + + librdf_free_model(model->model); + model->model = NULL; + + librdf_free_storage(model->storage); + model->storage = NULL; + + librdf_free_world(model->world); + model->world = NULL; + + free(model); +} + + +/* private */ +void +slv2_model_load_directory(SLV2Model model, const char* dir) +{ + DIR* pdir = opendir(dir); + if (!pdir) + return; + + struct dirent* pfile; + while ((pfile = readdir(pdir))) { + if (!strcmp(pfile->d_name, ".") || !strcmp(pfile->d_name, "..")) + continue; + + char* bundle_uri_str = slv2_strjoin("file://", dir, "/", pfile->d_name, "/", NULL); + librdf_uri* bundle_uri = librdf_new_uri(model->world, (unsigned char*)bundle_uri_str); + + DIR* bundle_dir = opendir(bundle_uri_str + 7); + + if (bundle_dir != NULL) { + closedir(bundle_dir); + + librdf_uri* manifest_uri = librdf_new_uri_relative_to_base( + bundle_uri, (const unsigned char*)"manifest.ttl"); + + librdf_parser_parse_into_model(model->parser, manifest_uri, NULL, model->model); + + librdf_free_uri(manifest_uri); + } + + free(bundle_uri_str); + librdf_free_uri(bundle_uri); + } + + closedir(pdir); +} + + +void +slv2_model_load_path(SLV2Model model, + const char* lv2_path) +{ + char* path = slv2_strjoin(lv2_path, ":", NULL); + char* dir = path; // Pointer into path + + // Go through string replacing ':' with '\0', using the substring, + // then replacing it with 'X' and moving on. i.e. strtok on crack. + while (strchr(path, ':') != NULL) { + char* delim = strchr(path, ':'); + *delim = '\0'; + + slv2_model_load_directory(model, dir); + + *delim = 'X'; + dir = delim + 1; + } + + free(path); +} + + +/** comparator for sorting */ +/*int +slv2_plugin_compare_by_uri(const void* a, const void* b) +{ + SLV2Plugin plugin_a = *(SLV2Plugin*)a; + SLV2Plugin plugin_b = *(SLV2Plugin*)b; + + return strcmp((const char*)librdf_uri_as_string(plugin_a->plugin_uri), + (const char*)librdf_uri_as_string(plugin_b->plugin_uri)); +} +*/ + +void +slv2_model_load_all(SLV2Model model) +{ + char* lv2_path = getenv("LV2_PATH"); + + // Read all manifest files + if (lv2_path) { + slv2_model_load_path(model, lv2_path); + } else { + const char* const home = getenv("HOME"); + 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_model_load_path(model, lv2_path); + + free(lv2_path); + } + + + // Find all plugins and associated data files + unsigned char* query_string = (unsigned char*) + "PREFIX : \n" + "PREFIX rdfs: \n" + "SELECT DISTINCT ?plugin ?data ?binary\n" + "WHERE { ?plugin a :Plugin; rdfs:seeAlso ?data\n" + "OPTIONAL { ?plugin :binary ?binary } }\n" + "ORDER BY ?plugin\n"; + + librdf_query* q = librdf_new_query(model->world, "sparql", + NULL, query_string, NULL); + + librdf_query_results* results = librdf_query_execute(q, model->model); + + while (!librdf_query_results_finished(results)) { + + librdf_node* plugin_node = librdf_query_results_get_binding_value(results, 0); + librdf_uri* plugin_uri = librdf_node_get_uri(plugin_node); + librdf_node* data_node = librdf_query_results_get_binding_value(results, 1); + librdf_uri* data_uri = librdf_node_get_uri(data_node); + librdf_node* binary_node = librdf_query_results_get_binding_value(results, 2); + librdf_uri* binary_uri = librdf_node_get_uri(binary_node); + + SLV2Plugin plugin = slv2_plugins_get_by_uri(model->plugins, + (const char*)librdf_uri_as_string(plugin_uri)); + + // Create a new SLV2Plugin + if (!plugin) + plugin = slv2_plugin_new(model, plugin_uri, + (const char*)librdf_uri_as_string(binary_uri)); + + plugin->model = model; + + // FIXME: check for duplicates + raptor_sequence_push(plugin->data_uris, librdf_new_uri_from_uri(data_uri)); + + raptor_sequence_push(model->plugins, plugin); + + librdf_free_node(plugin_node); + librdf_free_node(data_node); + + librdf_query_results_next(results); + } + + // ORDER BY should (and appears to actually) guarantee this + //raptor_sequence_sort(model->plugins, slv2_plugin_compare_by_uri); + + if (results) + librdf_free_query_results(results); + + librdf_free_query(q); +} + + +#if 0 +void +slv2_model_serialize(const char* filename) +{ + librdf_uri* lv2_uri = librdf_new_uri(slv2_rdf_world, + (unsigned char*)"http://lv2plug.in/ontology#"); + + librdf_uri* rdfs_uri = librdf_new_uri(slv2_rdf_world, + (unsigned char*)"http://www.w3.org/2000/01/rdf-schema#"); + + // Write out test file + librdf_serializer* serializer = librdf_new_serializer(slv2_rdf_world, + "turtle", NULL, NULL); + librdf_serializer_set_namespace(serializer, lv2_uri, ""); + librdf_serializer_set_namespace(serializer, rdfs_uri, "rdfs"); + librdf_serializer_serialize_model_to_file(serializer, filename, NULL, slv2_model); + librdf_free_serializer(serializer); +} +#endif + + +SLV2Plugins +slv2_model_get_all_plugins(SLV2Model model) +{ + // FIXME: Slow.. + + // NULL deleter so user can free returned sequence without nuking + // our locally stored plugins + raptor_sequence* result = raptor_new_sequence(NULL, NULL); + + for (int i=0; i < raptor_sequence_size(model->plugins); ++i) + raptor_sequence_push(result, raptor_sequence_get_at(model->plugins, i)); + + // sorted? + + return result; +} + + +SLV2Plugins +slv2_model_get_plugins_by_filter(SLV2Model model, bool (*include)(SLV2Plugin)) +{ + SLV2Plugins all = slv2_model_get_all_plugins(model); + SLV2Plugins result = slv2_plugins_new(); + + for (int i=0; i < raptor_sequence_size(all); ++i) { + SLV2Plugin p = raptor_sequence_get_at(all, i); + if (include(p)) + raptor_sequence_push(result, slv2_plugin_duplicate(p)); + } + + slv2_plugins_free(all); + return result; +} + + +#if 0 +SLV2Plugins +slv2_model_get_plugins_by_query(SLV2Model model, const char* query) +{ + SLV2Plugins list = slv2_plugins_new(); + + librdf_query* rq = librdf_new_query(model->world, "sparql", + NULL, (const unsigned char*)query, NULL); + + librdf_query_results* results = librdf_query_execute(rq, model->model); + + while (!librdf_query_results_finished(results)) { + librdf_node* plugin_node = librdf_query_results_get_binding_value(results, 0); + librdf_uri* plugin_uri = librdf_node_get_uri(plugin_node); + + SLV2Plugin plugin = slv2_plugins_get_by_uri(list, + (const char*)librdf_uri_as_string(plugin_uri)); + + /* Create a new SLV2Plugin */ + if (!plugin) { + SLV2Plugin new_plugin = slv2_plugin_new(model, plugin_uri); + raptor_sequence_push(list, new_plugin); + } + + librdf_free_node(plugin_node); + + librdf_query_results_next(results); + } + + if (results) + librdf_free_query_results(results); + + librdf_free_query(rq); + + return list; +} +#endif + -- cgit v1.2.1