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   1 /*
   2  * Copyright © 2010 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  16  */
  17
  18 package org.altusmetrum.altoslib_6;
  19
  20 import java.io.*;
  21 import java.util.*;
  22
  23 public class AltosPreferences {
  24         public static AltosPreferencesBackend backend = null;
  25
  26         /* logdir preference name */
  27         public final static String logdirPreference = "LOGDIR";
  28
  29         /* channel preference name */
  30         public final static String channelPreferenceFormat = "CHANNEL-%d";
  31
  32         /* frequency preference name */
  33         public final static String frequencyPreferenceFormat = "FREQUENCY-%d";
  34
  35         /* telemetry format preference name */
  36         public final static String telemetryPreferenceFormat = "TELEMETRY-%d";
  37
  38         /* telemetry rate format preference name */
  39         public final static String telemetryRatePreferenceFormat = "RATE-%d";
  40
  41         /* log file format preference name */
  42         public final static String logfilePreferenceFormat = "LOGFILE-%d";
  43
  44         /* state preference name */
  45         public final static String statePreferenceFormat = "STATE-%d";
  46
  47         /* voice preference name */
  48         public final static String voicePreference = "VOICE";
  49
  50         /* callsign preference name */
  51         public final static String callsignPreference = "CALLSIGN";
  52
  53         /* firmware directory preference name */
  54         public final static String firmwaredirPreference = "FIRMWARE";
  55
  56         /* serial debug preference name */
  57         public final static String serialDebugPreference = "SERIAL-DEBUG";
  58
  59         /* scanning telemetry preferences name */
  60         public final static String scanningTelemetryPreference = "SCANNING-TELEMETRY";
  61
  62         /* scanning telemetry rate preferences name */
  63         public final static String scanningTelemetryRatePreference = "SCANNING-RATE";
  64
  65         /* Launcher serial preference name */
  66         public final static String launcherSerialPreference = "LAUNCHER-SERIAL";
  67
  68         /* Launcher channel preference name */
  69         public final static String launcherChannelPreference = "LAUNCHER-CHANNEL";
  70
  71         /* Default logdir is ~/TeleMetrum */
  72         public final static String logdirName = "TeleMetrum";
  73
  74         /* Log directory */
  75         public static File logdir;
  76
  77         /* Last log directory - use this next time we open or save something */
  78         public static File last_logdir;
  79
  80         /* Map directory -- hangs of logdir */
  81         public static File mapdir;
  82
  83         /* Frequency (map serial to frequency) */
  84         public static Hashtable<Integer, Double> frequencies;
  85
  86         /* Telemetry (map serial to telemetry format) */
  87         public static Hashtable<Integer, Integer> telemetries;
  88
  89         /* Telemetry rate (map serial to telemetry format) */
  90         public static Hashtable<Integer, Integer> telemetry_rates;
  91
  92         /* Log file (map serial to logfile name) */
  93         public static Hashtable<Integer, File> logfiles;
  94
  95         /* Voice preference */
  96         public static boolean voice;
  97
  98         /* Callsign preference */
  99         public static String callsign;
 100
 101         /* Firmware directory */
 102         public static File firmwaredir;
 103
 104         /* Scanning telemetry */
 105         public static int scanning_telemetry;
 106
 107         public static int scanning_telemetry_rate;
 108
 109         /* List of frequencies */
 110         public final static String common_frequencies_node_name = "COMMON-FREQUENCIES";
 111         public static AltosFrequency[] common_frequencies;
 112
 113         public final static String      frequency_count = "COUNT";
 114         public final static String      frequency_format = "FREQUENCY-%d";
 115         public final static String      description_format = "DESCRIPTION-%d";
 116
 117         /* Units preference */
 118
 119         public final static String      unitsPreference = "IMPERIAL-UNITS";
 120
 121         public static AltosFrequency[] load_common_frequencies() {
 122                 AltosFrequency[] frequencies = null;
 123                 boolean existing = false;
 124                 existing = backend.nodeExists(common_frequencies_node_name);
 125
 126                 if (existing) {
 127                         AltosPreferencesBackend node = backend.node(common_frequencies_node_name);
 128                         int             count = node.getInt(frequency_count, 0);
 129
 130                         frequencies = new AltosFrequency[count];
 131                         for (int i = 0; i < count; i++) {
 132                                 double  frequency;
 133                                 String  description;
 134
 135                                 frequency = node.getDouble(String.format(frequency_format, i), 0.0);
 136                                 description = node.getString(String.format(description_format, i), null);
 137                                 frequencies[i] = new AltosFrequency(frequency, description);
 138                         }
 139                 } else {
 140                         frequencies = new AltosFrequency[10];
 141                         for (int i = 0; i < 10; i++) {
 142                                 frequencies[i] = new AltosFrequency(434.550 + i * .1,
 143                                                                            String.format("Channel %d", i));
 144                         }
 145                 }
 146                 return frequencies;
 147         }
 148
 149         public static void save_common_frequencies(AltosFrequency[] frequencies) {
 150                 AltosPreferencesBackend node = backend.node(common_frequencies_node_name);
 151
 152                 node.putInt(frequency_count, frequencies.length);
 153                 for (int i = 0; i < frequencies.length; i++) {
 154                         node.putDouble(String.format(frequency_format, i), frequencies[i].frequency);
 155                         node.putString(String.format(description_format, i), frequencies[i].description);
 156                 }
 157         }
 158         public static int launcher_serial;
 159
 160         public static int launcher_channel;
 161
 162         public static void init(AltosPreferencesBackend in_backend) {
 163
 164                 if (backend != null)
 165                         return;
 166
 167                 backend = in_backend;
 168
 169                 /* Initialize logdir from preferences */
 170                 String logdir_string = backend.getString(logdirPreference, null);
 171                 if (logdir_string != null)
 172                         logdir = new File(logdir_string);
 173                 else {
 174                         logdir = new File(backend.homeDirectory(), logdirName);
 175                         if (!logdir.exists())
 176                                 logdir.mkdirs();
 177                 }
 178                 mapdir = new File(logdir, "maps");
 179                 if (!mapdir.exists())
 180                         mapdir.mkdirs();
 181
 182                 frequencies = new Hashtable<Integer, Double>();
 183
 184                 telemetries = new Hashtable<Integer,Integer>();
 185
 186                 telemetry_rates = new Hashtable<Integer,Integer>();
 187
 188                 logfiles = new Hashtable<Integer,File>();
 189
 190                 voice = backend.getBoolean(voicePreference, true);
 191
 192                 callsign = backend.getString(callsignPreference,"N0CALL");
 193
 194                 scanning_telemetry = backend.getInt(scanningTelemetryPreference,(1 << AltosLib.ao_telemetry_standard));
 195
 196                 scanning_telemetry_rate = backend.getInt(scanningTelemetryRatePreference,(1 << AltosLib.ao_telemetry_rate_38400));
 197
 198                 launcher_serial = backend.getInt(launcherSerialPreference, 0);
 199
 200                 launcher_channel = backend.getInt(launcherChannelPreference, 0);
 201
 202                 String firmwaredir_string = backend.getString(firmwaredirPreference, null);
 203                 if (firmwaredir_string != null)
 204                         firmwaredir = new File(firmwaredir_string);
 205                 else
 206                         firmwaredir = null;
 207
 208                 common_frequencies = load_common_frequencies();
 209
 210                 AltosConvert.imperial_units = backend.getBoolean(unitsPreference, false);
 211         }
 212
 213         public static void flush_preferences() {
 214                 backend.flush();
 215         }
 216
 217         public static void set_logdir(File new_logdir) {
 218                 synchronized (backend) {
 219                         logdir = new_logdir;
 220                         mapdir = new File(logdir, "maps");
 221                         if (!mapdir.exists())
 222                                 mapdir.mkdirs();
 223                         backend.putString(logdirPreference, logdir.getPath());
 224                         flush_preferences();
 225                 }
 226         }
 227
 228         public static File logdir() {
 229                 synchronized (backend) {
 230                         return logdir;
 231                 }
 232         }
 233
 234         public static File last_logdir() {
 235                 synchronized (backend) {
 236                         if (last_logdir == null)
 237                                 last_logdir = logdir;
 238                         return last_logdir;
 239                 }
 240         }
 241
 242         public static void set_last_logdir(File file) {
 243                 synchronized(backend) {
 244                         if (file != null && !file.isDirectory())
 245                                 file = file.getParentFile();
 246                         if (file == null)
 247                                 file = new File(".");
 248                         last_logdir = file;
 249                 }
 250         }
 251
 252         public static File mapdir() {
 253                 synchronized (backend) {
 254                         return mapdir;
 255                 }
 256         }
 257
 258         public static void set_frequency(int serial, double new_frequency) {
 259                 synchronized (backend) {
 260                         frequencies.put(serial, new_frequency);
 261                         backend.putDouble(String.format(frequencyPreferenceFormat, serial), new_frequency);
 262                         flush_preferences();
 263                 }
 264         }
 265
 266         public static double frequency(int serial) {
 267                 synchronized (backend) {
 268                         if (frequencies.containsKey(serial))
 269                                 return frequencies.get(serial);
 270                         double frequency = backend.getDouble(String.format(frequencyPreferenceFormat, serial), 0);
 271                         if (frequency == 0.0) {
 272                                 int channel = backend.getInt(String.format(channelPreferenceFormat, serial), 0);
 273                                 frequency = AltosConvert.radio_channel_to_frequency(channel);
 274                         }
 275                         frequencies.put(serial, frequency);
 276                         return frequency;
 277                 }
 278         }
 279
 280         public static void set_telemetry(int serial, int new_telemetry) {
 281                 synchronized (backend) {
 282                         telemetries.put(serial, new_telemetry);
 283                         backend.putInt(String.format(telemetryPreferenceFormat, serial), new_telemetry);
 284                         flush_preferences();
 285                 }
 286         }
 287
 288         public static int telemetry(int serial) {
 289                 synchronized (backend) {
 290                         if (telemetries.containsKey(serial))
 291                                 return telemetries.get(serial);
 292                         int telemetry = backend.getInt(String.format(telemetryPreferenceFormat, serial),
 293                                                    AltosLib.ao_telemetry_standard);
 294                         telemetries.put(serial, telemetry);
 295                         return telemetry;
 296                 }
 297         }
 298
 299         public static void set_telemetry_rate(int serial, int new_telemetry_rate) {
 300                 synchronized (backend) {
 301                         telemetry_rates.put(serial, new_telemetry_rate);
 302                         backend.putInt(String.format(telemetryRatePreferenceFormat, serial), new_telemetry_rate);
 303                         flush_preferences();
 304                 }
 305         }
 306
 307         public static int telemetry_rate(int serial) {
 308                 synchronized (backend) {
 309                         if (telemetry_rates.containsKey(serial))
 310                                 return telemetry_rates.get(serial);
 311                         int telemetry_rate = backend.getInt(String.format(telemetryRatePreferenceFormat, serial),
 312                                                             AltosLib.ao_telemetry_rate_38400);
 313                         telemetry_rates.put(serial, telemetry_rate);
 314                         return telemetry_rate;
 315                 }
 316         }
 317
 318         public static void set_logfile(int serial, File new_logfile) {
 319                 synchronized(backend) {
 320                         logfiles.put(serial, new_logfile);
 321                         backend.putString(String.format(logfilePreferenceFormat, serial), new_logfile.getPath());
 322                         flush_preferences();
 323                 }
 324         }
 325
 326         public static File logfile(int serial) {
 327                 synchronized(backend) {
 328                         if (logfiles.containsKey(serial))
 329                                 return logfiles.get(serial);
 330                         String logfile_string = backend.getString(String.format(logfilePreferenceFormat, serial), null);
 331                         if (logfile_string == null)
 332                                 return null;
 333                         File logfile = new File(logfile_string);
 334                         logfiles.put(serial, logfile);
 335                         return logfile;
 336                 }
 337         }
 338
 339         public static void set_state(int serial, AltosState state, AltosListenerState listener_state) {
 340
 341                 ByteArrayOutputStream baos = new ByteArrayOutputStream();
 342
 343                 try {
 344                         ObjectOutputStream oos = new ObjectOutputStream(baos);
 345
 346                         AltosSavedState saved_state = new AltosSavedState(state, listener_state);
 347                         oos.writeObject(saved_state);
 348
 349                         byte[] bytes = baos.toByteArray();
 350
 351                         synchronized(backend) {
 352                                 backend.putBytes(String.format(statePreferenceFormat, serial), bytes);
 353                                 flush_preferences();
 354                         }
 355                 } catch (IOException ie) {
 356                 }
 357         }
 358
 359         public static AltosSavedState state(int serial) {
 360                 byte[] bytes = null;
 361
 362                 synchronized(backend) {
 363                         bytes = backend.getBytes(String.format(statePreferenceFormat, serial), null);
 364                 }
 365
 366                 if (bytes == null)
 367                         return null;
 368
 369                 ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
 370
 371                 try {
 372                         ObjectInputStream ois = new ObjectInputStream(bais);
 373                         AltosSavedState saved_state = (AltosSavedState) ois.readObject();
 374                         return saved_state;
 375                 } catch (IOException ie) {
 376                 } catch (ClassNotFoundException ce) {
 377                 }
 378                 return null;
 379         }
 380
 381         public static void set_scanning_telemetry(int new_scanning_telemetry) {
 382                 synchronized (backend) {
 383                         scanning_telemetry = new_scanning_telemetry;
 384                         backend.putInt(scanningTelemetryPreference, scanning_telemetry);
 385                         flush_preferences();
 386                 }
 387         }
 388
 389         public static int scanning_telemetry() {
 390                 synchronized (backend) {
 391                         return scanning_telemetry;
 392                 }
 393         }
 394
 395         public static void set_scanning_telemetry_rate(int new_scanning_telemetry_rate) {
 396                 synchronized (backend) {
 397                         scanning_telemetry_rate = new_scanning_telemetry_rate;
 398                         backend.putInt(scanningTelemetryRatePreference, scanning_telemetry_rate);
 399                         flush_preferences();
 400                 }
 401         }
 402
 403         public static int scanning_telemetry_rate() {
 404                 synchronized(backend) {
 405                         return scanning_telemetry_rate;
 406                 }
 407         }
 408
 409         public static void set_voice(boolean new_voice) {
 410                 synchronized (backend) {
 411                         voice = new_voice;
 412                         backend.putBoolean(voicePreference, voice);
 413                         flush_preferences();
 414                 }
 415         }
 416
 417         public static boolean voice() {
 418                 synchronized (backend) {
 419                         return voice;
 420                 }
 421         }
 422
 423         public static void set_callsign(String new_callsign) {
 424                 synchronized(backend) {
 425                         callsign = new_callsign;
 426                         backend.putString(callsignPreference, callsign);
 427                         flush_preferences();
 428                 }
 429         }
 430
 431         public static String callsign() {
 432                 synchronized(backend) {
 433                         return callsign;
 434                 }
 435         }
 436
 437         public static void set_firmwaredir(File new_firmwaredir) {
 438                 synchronized (backend) {
 439                         firmwaredir = new_firmwaredir;
 440                         backend.putString(firmwaredirPreference, firmwaredir.getPath());
 441                         flush_preferences();
 442                 }
 443         }
 444
 445         public static File firmwaredir() {
 446                 synchronized (backend) {
 447                         return firmwaredir;
 448                 }
 449         }
 450
 451         public static void set_launcher_serial(int new_launcher_serial) {
 452                 synchronized (backend) {
 453                         launcher_serial = new_launcher_serial;
 454                         backend.putInt(launcherSerialPreference, launcher_serial);
 455                         flush_preferences();
 456                 }
 457         }
 458
 459         public static int launcher_serial() {
 460                 synchronized (backend) {
 461                         return launcher_serial;
 462                 }
 463         }
 464
 465         public static void set_launcher_channel(int new_launcher_channel) {
 466                 synchronized (backend) {
 467                         launcher_channel = new_launcher_channel;
 468                         backend.putInt(launcherChannelPreference, launcher_channel);
 469                         flush_preferences();
 470                 }
 471         }
 472
 473         public static int launcher_channel() {
 474                 synchronized (backend) {
 475                         return launcher_channel;
 476                 }
 477         }
 478
 479         public static AltosPreferencesBackend bt_devices() {
 480                 synchronized (backend) {
 481                         return backend.node("bt_devices");
 482                 }
 483         }
 484
 485         public static AltosFrequency[] common_frequencies() {
 486                 synchronized (backend) {
 487                         return common_frequencies;
 488                 }
 489         }
 490
 491         public static void set_common_frequencies(AltosFrequency[] frequencies) {
 492                 synchronized(backend) {
 493                         common_frequencies = frequencies;
 494                         save_common_frequencies(frequencies);
 495                         flush_preferences();
 496                 }
 497         }
 498
 499         public static void add_common_frequency(AltosFrequency frequency) {
 500                 AltosFrequency[]        old_frequencies = common_frequencies();
 501                 AltosFrequency[]        new_frequencies = new AltosFrequency[old_frequencies.length + 1];
 502                 int                     i;
 503
 504                 for (i = 0; i < old_frequencies.length; i++) {
 505                         if (frequency.frequency == old_frequencies[i].frequency)
 506                                 return;
 507                         if (frequency.frequency < old_frequencies[i].frequency)
 508                                 break;
 509                         new_frequencies[i] = old_frequencies[i];
 510                 }
 511                 new_frequencies[i] = frequency;
 512                 for (; i < old_frequencies.length; i++)
 513                         new_frequencies[i+1] = old_frequencies[i];
 514                 set_common_frequencies(new_frequencies);
 515         }
 516
 517         static LinkedList<AltosUnitsListener> units_listeners;
 518
 519         public static boolean imperial_units() {
 520                 synchronized(backend) {
 521                         return AltosConvert.imperial_units;
 522                 }
 523         }
 524
 525         public static void set_imperial_units(boolean imperial_units) {
 526                 synchronized (backend) {
 527                         AltosConvert.imperial_units = imperial_units;
 528                         backend.putBoolean(unitsPreference, imperial_units);
 529                         flush_preferences();
 530                 }
 531                 if (units_listeners != null) {
 532                         for (AltosUnitsListener l : units_listeners) {
 533                                 l.units_changed(imperial_units);
 534                         }
 535                 }
 536         }
 537
 538         public static void register_units_listener(AltosUnitsListener l) {
 539                 synchronized(backend) {
 540                         if (units_listeners == null)
 541                                 units_listeners = new LinkedList<AltosUnitsListener>();
 542                         units_listeners.add(l);
 543                 }
 544         }
 545
 546         public static void unregister_units_listener(AltosUnitsListener l) {
 547                 synchronized(backend) {
 548                         units_listeners.remove(l);
 549                 }
 550         }
 551 }