git.maemo.org Git - cinaest/blob - src/imdb/imdb-downloader-cli.vala

   1 using GLib;
   2
   3 class IMDbDownloaderCLI : Object, IMDbDownloader {
   4         MainLoop loop;
   5         Cancellable cancellable;
   6         bool running;
   7         uint source_id;
   8         unowned IMDbSqlite sqlite;
   9 //      string mirrors[] = {
  10 //              "ftp.fu-berlin.de/pub/misc/movies/database/"
  11 //      };
  12         string url;
  13         int flags;
  14         int percent_finished;
  15
  16         delegate void ParseLineFunction (string line);
  17
  18         construct {
  19                 loop = new MainLoop (null, false);
  20                 cancellable = new Cancellable ();
  21         }
  22
  23         // IMDbDownloader implementation
  24
  25         public void download (string mirror, int _flags) throws DBus.Error {
  26                 if (running) {
  27                         stdout.printf ("Download in progress. Abort.\n");
  28                         return;
  29                 }
  30                 running = true;
  31                 if (source_id != 0) {
  32                         Source.remove (source_id);
  33                 }
  34
  35                 stdout.printf ("Download started (%x).", flags);
  36                 progress (0);
  37                 url = "ftp://anonymous@" + mirror;
  38                 flags = _flags;
  39                 try {
  40                         Thread.create(download_thread, false);
  41                 } catch (ThreadError e) {
  42                         critical ("Failed to create download thread\n");
  43                         return;
  44                 }
  45         }
  46
  47         public void cancel () throws DBus.Error {
  48                 cancellable.cancel ();
  49         }
  50
  51         public string[] get_mirrors () throws DBus.Error {
  52                 return null;
  53         }
  54
  55         // Private methods
  56
  57         private bool do_download () {
  58                 try {
  59                         download ("ftp.fu-berlin.de/pub/misc/movies/database/", MOVIES | GENRES | RATINGS | AKAS | PLOTS);
  60                 } catch (Error e) {
  61                         print ("Error: %s\n", e.message);
  62                 }
  63
  64                 return false;
  65         }
  66
  67         private void* download_thread () {
  68                 description_changed ("Connecting to FTP ...");
  69                 progress (0);
  70                 percent_finished = 0;
  71
  72                 var cache_dir = Path.build_filename (Environment.get_user_cache_dir (), "cinaest");
  73                 DirUtils.create_with_parents (cache_dir, 0770);
  74
  75                 var _sqlite = new IMDbSqlite (Path.build_filename (cache_dir, "imdb.db"));
  76                 sqlite = _sqlite;
  77                 _sqlite.clear ();
  78
  79                 try {
  80                         var movie_parser = new MovieLineParser (sqlite);
  81                         var genre_parser = new GenreLineParser (sqlite);
  82                         var rating_parser = new RatingLineParser (sqlite);
  83                         var aka_parser = new AkaLineParser (sqlite);
  84                         var plot_parser = new PlotLineParser (sqlite);
  85
  86                         var downloader = new FtpDownloader (cancellable);
  87
  88                         var parser = new IMDbGzipParser (cancellable);
  89
  90                         downloader.progress.connect (on_progress);
  91
  92                         if (MOVIES in flags) {
  93                                 description_changed ("Downloading movie list ...");
  94                                 downloader.download (url + "movies.list.gz", Path.build_filename (cache_dir, "movies.list.gz"));
  95                         }
  96                         percent_finished = 20;
  97                         if (GENRES in flags) {
  98                                 description_changed ("Downloading genre data ...");
  99                                 downloader.download (url + "genres.list.gz", Path.build_filename (cache_dir, "genres.list.gz"));
 100                         }
 101                         percent_finished = 40;
 102                         if (RATINGS in flags) {
 103                                 description_changed ("Downloading rating data ...");
 104                                 downloader.download (url + "ratings.list.gz", Path.build_filename (cache_dir, "ratings.list.gz"));
 105                         }
 106                         percent_finished = 60;
 107                         if (AKAS in flags) {
 108                                 description_changed ("Downloading alternative titles ...");
 109                                 downloader.download (url + "aka-titles.list.gz", Path.build_filename (cache_dir, "aka-titles.list.gz"));
 110                         }
 111                         percent_finished = 80;
 112                         if (PLOTS in flags) {
 113                                 description_changed ("Downloading plots ...");
 114                                 downloader.download (url + "plot.list.gz", Path.build_filename (cache_dir, "plot.list.gz"));
 115                         }
 116
 117                         if (MOVIES in flags) {
 118                                 description_changed ("Parsing movie list ...");
 119                                 parser.parse (Path.build_filename (cache_dir, "movies.list.gz"), movie_parser);
 120                         }
 121                         percent_finished = 20;
 122                         if (GENRES in flags) {
 123                                 description_changed ("Parsing genre data ...");
 124                                 parser.parse (Path.build_filename (cache_dir, "genres.list.gz"), genre_parser);
 125                         }
 126                         percent_finished = 40;
 127                         if (RATINGS in flags) {
 128                                 description_changed ("Parsing rating data ...");
 129                                 parser.parse (Path.build_filename (cache_dir, "ratings.list.gz"), rating_parser);
 130                         }
 131                         percent_finished = 60;
 132                         if (AKAS in flags) {
 133                                 description_changed ("Parsing alternative titles ...");
 134                                 parser.parse (Path.build_filename (cache_dir, "aka-titles.list.gz"), aka_parser);
 135                         }
 136                         percent_finished = 80;
 137                         if (PLOTS in flags) {
 138                                 description_changed ("Parsing plots ...");
 139                                 parser.parse (Path.build_filename (cache_dir, "plot.list.gz"), plot_parser);
 140                         }
 141                 } catch (Error e2) {
 142                         if (e2 is IOError.CANCELLED)
 143                                 stdout.printf ("Download cancelled.\n");
 144                         else
 145                                 warning ("Failed to open/read stream: %s\n", e2.message);
 146                 }
 147
 148                 description_changed ("Creating indices ...");
 149                 if (AKAS in flags)
 150                         sqlite.create_aka_index ();
 151                 if (MOVIES in flags)
 152                         sqlite.create_votes_index ();
 153
 154                 if (!cancellable.is_cancelled ()) {
 155                         stdout.printf ("Download complete.\n");
 156                         progress (100);
 157                 }
 158
 159                 sqlite = null;
 160                 running = false;
 161
 162                 timeout_quit ();
 163
 164                 return null;
 165         }
 166
 167         private void on_progress (int dltotal, int dlnow) {
 168         /*
 169                 progress (percent_finished + percent / 5);
 170                 stdout.printf ("%d %%\r", percent_finished + percent / 5);
 171         */
 172                 stdout.printf ("%d / %d\r", dlnow, dltotal);
 173                 stdout.flush ();
 174         }
 175
 176         private void timeout_quit () {
 177                 source_id = Timeout.add (3000, quit);
 178         }
 179
 180         private bool quit () {
 181                 loop.quit ();
 182
 183                 // One-shot only
 184                 return false;
 185         }
 186
 187         public void run () {
 188                 loop.run ();
 189         }
 190
 191         public void show_desc (string desc) {
 192                 print ("DESC: \"%s\"\n", desc);
 193         }
 194
 195         public static void main () {
 196                 Curl.global_init (Curl.GLOBAL_DEFAULT);
 197
 198                 // Start server
 199                 var downloader = new IMDbDownloaderCLI ();
 200                 downloader.description_changed.connect (downloader.show_desc);
 201
 202                 Idle.add (downloader.do_download);
 203                 downloader.run ();
 204
 205                 Curl.global_cleanup ();
 206         }
 207 }