common/stt_config_mgr.c

   1 /*
   2 *  Copyright (c) 2011-2016 Samsung Electronics Co., Ltd All Rights Reserved
   3 *  Licensed under the Apache License, Version 2.0 (the "License");
   4 *  you may not use this file except in compliance with the License.
   5 *  You may obtain a copy of the License at
   6 *  http://www.apache.org/licenses/LICENSE-2.0
   7 *  Unless required by applicable law or agreed to in writing, software
   8 *  distributed under the License is distributed on an "AS IS" BASIS,
   9 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  10 *  See the License for the specific language governing permissions and
  11 *  limitations under the License.
  12 */
  13
  14 #include <dirent.h>
  15 #include <dlfcn.h>
  16 #include <dlog.h>
  17 #include <Ecore.h>
  18 #include <glib.h>
  19 #include <unistd.h>
  20 #include <sys/inotify.h>
  21 #include <vconf.h>
  22
  23 #include "stt_config_mgr.h"
  24 #include "stt_defs.h"
  25 #include "stt_config_parser.h"
  26
  27
  28 typedef struct {
  29         int     uid;
  30         stt_config_engine_changed_cb    engine_cb;
  31         stt_config_lang_changed_cb      lang_cb;
  32         stt_config_bool_changed_cb      bool_cb;
  33         void*   user_data;
  34 } stt_config_client_s;
  35
  36
  37 extern const char* stt_tag();
  38
  39 static GSList* g_engine_list = NULL;
  40
  41 static GSList* g_config_client_list = NULL;
  42
  43 static stt_config_s* g_config_info;
  44
  45 static Ecore_Fd_Handler* g_fd_handler_noti = NULL;
  46 static int g_fd_noti;
  47 static int g_wd_noti;
  48
  49 int __stt_config_mgr_print_engine_info();
  50
  51 bool __stt_config_mgr_check_lang_is_valid(const char* engine_id, const char* language)
  52 {
  53         if (NULL == engine_id || NULL == language) {
  54                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] Input parameter is NULL");
  55                 return false;
  56         }
  57
  58         GSList *iter = NULL;
  59         stt_engine_info_s *engine_info = NULL;
  60
  61         if (0 >= g_slist_length(g_engine_list)) {
  62                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] There is no engine!!");
  63                 return false;
  64         }
  65
  66         /* Get a first item */
  67         iter = g_slist_nth(g_engine_list, 0);
  68
  69         while (NULL != iter) {
  70                 engine_info = iter->data;
  71
  72                 if (NULL == engine_info) {
  73                         SLOG(LOG_ERROR, stt_tag(), "[ERROR] Engine info is NULL");
  74                         return false;
  75                 }
  76
  77                 if (0 != strcmp(engine_id, engine_info->uuid)) {
  78                         iter = g_slist_next(iter);
  79                         continue;
  80                 }
  81
  82                 GSList *iter_lang = NULL;
  83                 char* engine_lang;
  84                 if (g_slist_length(engine_info->languages) > 0) {
  85                         /* Get a first item */
  86                         iter_lang = g_slist_nth(engine_info->languages, 0);
  87
  88                         int i = 1;
  89                         while (NULL != iter_lang) {
  90                                 /*Get handle data from list*/
  91                                 engine_lang = iter_lang->data;
  92
  93                                 SLOG(LOG_DEBUG, stt_tag(), "  [%dth] %s", i, engine_lang);
  94
  95                                 if (0 == strcmp(language, engine_lang)) {
  96                                         return true;
  97                                 }
  98
  99                                 /*Get next item*/
 100                                 iter_lang = g_slist_next(iter_lang);
 101                                 i++;
 102                         }
 103                 }
 104                 break;
 105         }
 106
 107         return false;
 108 }
 109
 110 int __stt_config_mgr_select_lang(const char* engine_id, char** language)
 111 {
 112         if (NULL == engine_id || NULL == language) {
 113                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] Input parameter is NULL");
 114                 return false;
 115         }
 116
 117         GSList *iter = NULL;
 118         stt_engine_info_s *engine_info = NULL;
 119
 120         if (0 >= g_slist_length(g_engine_list)) {
 121                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] There is no engine!!");
 122                 return false;
 123         }
 124
 125         /* Get a first item */
 126         iter = g_slist_nth(g_engine_list, 0);
 127
 128         while (NULL != iter) {
 129                 engine_info = iter->data;
 130
 131                 if (NULL == engine_info) {
 132                         SLOG(LOG_ERROR, stt_tag(), "engine info is NULL");
 133                         return false;
 134                 }
 135
 136                 if (0 != strcmp(engine_id, engine_info->uuid)) {
 137                         iter = g_slist_next(iter);
 138                         continue;
 139                 }
 140
 141                 GSList *iter_lang = NULL;
 142                 char* engine_lang = NULL;
 143                 if (g_slist_length(engine_info->languages) > 0) {
 144                         /* Get a first item */
 145                         iter_lang = g_slist_nth(engine_info->languages, 0);
 146
 147                         while (NULL != iter_lang) {
 148                                 engine_lang = iter_lang->data;
 149                                 if (NULL != engine_lang) {
 150                                         /* Default language is STT_BASE_LANGUAGE */
 151                                         if (0 == strcmp(STT_BASE_LANGUAGE, engine_lang)) {
 152                                                 *language = strdup(engine_lang);
 153                                                 SLOG(LOG_DEBUG, stt_tag(), "Selected language : %s", (NULL == *language) ? "NULL" : *language);
 154                                                 return 0;
 155                                         }
 156                                 }
 157
 158                                 iter_lang = g_slist_next(iter_lang);
 159                         }
 160
 161                         /* Not support STT_BASE_LANGUAGE */
 162                         if (NULL != engine_lang) {
 163                                 *language = strdup(engine_lang);
 164                                 SLOG(LOG_DEBUG, stt_tag(), "Selected language : %s", (NULL == *language) ? "NULL" : *language);
 165                                 return 0;
 166                         }
 167                 }
 168                 break;
 169         }
 170
 171         return -1;
 172 }
 173
 174 Eina_Bool stt_config_mgr_inotify_event_cb(void* data, Ecore_Fd_Handler *fd_handler)
 175 {
 176         SLOG(LOG_DEBUG, stt_tag(), "===== Config changed callback event");
 177
 178         int length;
 179         struct inotify_event event;
 180         memset(&event, '\0', sizeof(struct inotify_event));
 181
 182         length = read(g_fd_noti, &event, sizeof(struct inotify_event));
 183         if (0 > length) {
 184                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] Empty Inotify event");
 185                 SLOG(LOG_DEBUG, stt_tag(), "=====");
 186                 SLOG(LOG_DEBUG, stt_tag(), " ");
 187                 return ECORE_CALLBACK_PASS_ON;
 188         }
 189
 190         if (IN_MODIFY == event.mask) {
 191                 char* engine = NULL;
 192                 char* setting = NULL;
 193                 char* lang = NULL;
 194                 int auto_lang = -1;
 195                 int silence = -1;
 196                 int credential = -1;
 197
 198                 GSList *iter = NULL;
 199                 stt_config_client_s* temp_client = NULL;
 200
 201                 if (0 != stt_parser_find_config_changed(&engine, &setting, &auto_lang, &lang, &silence, &credential))
 202                         return ECORE_CALLBACK_PASS_ON;
 203
 204                 /* Engine changed */
 205                 if (NULL != engine || NULL != setting) {
 206                         /* engine changed */
 207                         if (NULL != engine) {
 208                                 if (NULL != g_config_info->engine_id)   free(g_config_info->engine_id);
 209                                 g_config_info->engine_id = strdup(engine);
 210                         }
 211
 212                         if (NULL != setting) {
 213                                 if (NULL != g_config_info->setting)     free(g_config_info->setting);
 214                                 g_config_info->setting = strdup(setting);
 215                         }
 216
 217                         if (NULL != lang) {
 218                                 if (NULL != g_config_info->language)    free(g_config_info->language);
 219                                 g_config_info->language = strdup(lang);
 220                         }
 221
 222                         if (-1 != silence)      g_config_info->silence_detection = silence;
 223
 224                         if (-1 != credential)   g_config_info->credential = credential;
 225
 226                         /* Call all callbacks of client*/
 227                         iter = g_slist_nth(g_config_client_list, 0);
 228
 229                         while (NULL != iter) {
 230                                 temp_client = iter->data;
 231
 232                                 if (NULL != temp_client) {
 233                                         if (NULL != temp_client->engine_cb) {
 234                                                 temp_client->engine_cb(g_config_info->engine_id, g_config_info->setting, g_config_info->language,
 235                                                         g_config_info->silence_detection, g_config_info->credential, temp_client->user_data);
 236                                         }
 237                                 }
 238
 239                                 iter = g_slist_next(iter);
 240                         }
 241                 }
 242
 243                 if (-1 != auto_lang) {
 244                         g_config_info->auto_lang = auto_lang;
 245                 }
 246
 247                 /* Only language changed */
 248                 if (NULL == engine && NULL != lang) {
 249                         char* before_lang = NULL;
 250                         before_lang = strdup(g_config_info->language);
 251
 252                         if (NULL != lang) {
 253                                 if (NULL != g_config_info->language)    free(g_config_info->language);
 254                                 g_config_info->language = strdup(lang);
 255                         }
 256
 257                         /* Call all callbacks of client*/
 258                         iter = g_slist_nth(g_config_client_list, 0);
 259
 260                         while (NULL != iter) {
 261                                 temp_client = iter->data;
 262
 263                                 if (NULL != temp_client) {
 264                                         if (NULL != temp_client->lang_cb) {
 265                                                 temp_client->lang_cb(before_lang, g_config_info->language, temp_client->user_data);
 266                                         }
 267                                 }
 268
 269                                 iter = g_slist_next(iter);
 270                         }
 271
 272                         if (NULL != before_lang) {
 273                                 free(before_lang);
 274                         }
 275                 }
 276
 277                 if (-1 != silence) {
 278                         /* silence detection changed */
 279                         g_config_info->silence_detection = silence;
 280
 281                         /* Call all callbacks of client*/
 282                         iter = g_slist_nth(g_config_client_list, 0);
 283
 284                         while (NULL != iter) {
 285                                 temp_client = iter->data;
 286
 287                                 if (NULL != temp_client) {
 288                                         if (NULL != temp_client->bool_cb) {
 289                                                 temp_client->bool_cb(STT_CONFIG_TYPE_OPTION_SILENCE_DETECTION, silence, temp_client->user_data);
 290                                         }
 291                                 }
 292
 293                                 iter = g_slist_next(iter);
 294                         }
 295                 }
 296
 297                 if (NULL != engine)     free(engine);
 298                 if (NULL != setting)    free(setting);
 299                 if (NULL != lang)       free(lang);
 300         } else {
 301                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] Undefined event");
 302         }
 303
 304         SLOG(LOG_DEBUG, stt_tag(), "=====");
 305         SLOG(LOG_DEBUG, stt_tag(), " ");
 306
 307         return ECORE_CALLBACK_PASS_ON;
 308 }
 309
 310 int __stt_config_mgr_register_config_event()
 311 {
 312         /* get file notification handler */
 313         int fd;
 314         int wd;
 315
 316         fd = inotify_init();
 317         if (fd < 0) {
 318                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] Fail get inotify fd");
 319                 return -1;
 320         }
 321         g_fd_noti = fd;
 322
 323         wd = inotify_add_watch(fd, STT_CONFIG, IN_MODIFY);
 324         g_wd_noti = wd;
 325
 326         g_fd_handler_noti = ecore_main_fd_handler_add(fd, ECORE_FD_READ, (Ecore_Fd_Cb)stt_config_mgr_inotify_event_cb, NULL, NULL, NULL);
 327         if (NULL == g_fd_handler_noti) {
 328                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] Fail to get handler_noti");
 329                 return -1;
 330         }
 331
 332         return 0;
 333 }
 334
 335 int __stt_config_mgr_unregister_config_event()
 336 {
 337         /* delete inotify variable */
 338         ecore_main_fd_handler_del(g_fd_handler_noti);
 339         inotify_rm_watch(g_fd_noti, g_wd_noti);
 340         close(g_fd_noti);
 341
 342         return 0;
 343 }
 344
 345 int __stt_config_set_auto_language()
 346 {
 347         char* value = NULL;
 348         char candidate_lang[6] = {'\0', };
 349
 350         value = vconf_get_str(VCONFKEY_LANGSET);
 351         if (NULL == value) {
 352                 SLOG(LOG_ERROR, stt_tag(), "[Config ERROR] Fail to get display language");
 353                 return -1;
 354         }
 355
 356         strncpy(candidate_lang, value, 5);
 357         free(value);
 358
 359         /* Check current config info */
 360         if (NULL == g_config_info) {
 361                 SLOG(LOG_ERROR, stt_tag(), "Current config info is NULL");
 362                 return STT_CONFIG_ERROR_OPERATION_FAILED;
 363         }
 364
 365         /* Check current language */
 366         if (NULL == g_config_info->language) {
 367                 SLOG(LOG_ERROR, stt_tag(), "Current config language is NULL");
 368                 return STT_CONFIG_ERROR_OPERATION_FAILED;
 369         }
 370
 371         if (0 == strncmp(g_config_info->language, candidate_lang, 5)) {
 372                 SLOG(LOG_DEBUG, stt_tag(), "[Config] Language is auto. STT language(%s) is same with display lang", g_config_info->language);
 373                 return 0;
 374         } else {
 375                 SLOG(LOG_DEBUG, stt_tag(), "[Config] Display language : %s", candidate_lang);
 376         }
 377
 378         if (true == __stt_config_mgr_check_lang_is_valid(g_config_info->engine_id, candidate_lang)) {
 379                 char* before_lang = NULL;
 380                 if (0 != stt_parser_set_language(candidate_lang)) {
 381                         SLOG(LOG_ERROR, stt_tag(), "Fail to save default language");
 382                         return -1;
 383                 }
 384
 385                 before_lang = strdup(g_config_info->language);
 386
 387                 free(g_config_info->language);
 388                 g_config_info->language = strdup(candidate_lang);
 389
 390                 SLOG(LOG_DEBUG, stt_tag(), "[Config] Language is auto. Set default language(%s)", g_config_info->language);
 391
 392                 /* Call all callbacks of client*/
 393                 GSList *iter = NULL;
 394                 stt_config_client_s* temp_client = NULL;
 395
 396                 iter = g_slist_nth(g_config_client_list, 0);
 397
 398                 while (NULL != iter) {
 399                         temp_client = iter->data;
 400
 401                         if (NULL != temp_client) {
 402                                 if (NULL != temp_client->lang_cb) {
 403                                         temp_client->lang_cb(before_lang, g_config_info->language, temp_client->user_data);
 404                                 }
 405                         }
 406
 407                         iter = g_slist_next(iter);
 408                 }
 409
 410                 if (NULL != before_lang) {
 411                         free(before_lang);
 412                 }
 413         } else {
 414                 /* Candidate language is not valid */
 415                 char* tmp_language = NULL;
 416                 if (0 != __stt_config_mgr_select_lang(g_config_info->engine_id, &tmp_language)) {
 417                         SLOG(LOG_ERROR, stt_tag(), "[ERROR] Fail to select language");
 418                         return -1;
 419                 }
 420
 421                 if (NULL == tmp_language) {
 422                         SLOG(LOG_ERROR, stt_tag(), "[ERROR] Selected language is NULL");
 423                         return -1;
 424                 }
 425
 426                 if (0 != stt_parser_set_language(tmp_language)) {
 427                         free(tmp_language);
 428                         SLOG(LOG_ERROR, stt_tag(), "[ERROR] Fail to save config");
 429                         return -1;
 430                 }
 431
 432                 SLOG(LOG_DEBUG, stt_tag(), "[Config] Language is auto but display lang is not supported. Default language change(%s)", tmp_language);
 433
 434                 /* Call all callbacks of client*/
 435                 GSList *iter = NULL;
 436                 stt_config_client_s* temp_client = NULL;
 437
 438                 iter = g_slist_nth(g_config_client_list, 0);
 439
 440                 while (NULL != iter) {
 441                         temp_client = iter->data;
 442
 443                         if (NULL != temp_client) {
 444                                 if (NULL != temp_client->lang_cb) {
 445                                         temp_client->lang_cb(g_config_info->language, tmp_language, temp_client->user_data);
 446                                 }
 447                         }
 448
 449                         iter = g_slist_next(iter);
 450                 }
 451
 452                 free(g_config_info->language);
 453                 g_config_info->language = strdup(tmp_language);
 454
 455                 free(tmp_language);
 456                 tmp_language = NULL;
 457         }
 458
 459         return 0;
 460 }
 461
 462 void __stt_config_language_changed_cb(keynode_t *key, void *data)
 463 {
 464         if (true == g_config_info->auto_lang) {
 465                 /* Get voice input vconf key */
 466                 __stt_config_set_auto_language();
 467         }
 468
 469         return;
 470 }
 471
 472 void __stt_config_release_client(int uid)
 473 {
 474         GSList *iter = NULL;
 475         stt_config_client_s* temp_client = NULL;
 476
 477         if (0 < g_slist_length(g_config_client_list)) {
 478                 /* Check uid */
 479                 iter = g_slist_nth(g_config_client_list, 0);
 480
 481                 while (NULL != iter) {
 482                         temp_client = iter->data;
 483
 484                         if (NULL != temp_client) {
 485                                 if (uid == temp_client->uid) {
 486                                         g_config_client_list = g_slist_remove(g_config_client_list, temp_client);
 487                                         free(temp_client);
 488                                         temp_client = NULL;
 489                                         break;
 490                                 }
 491                         }
 492
 493                         iter = g_slist_next(iter);
 494                 }
 495         }
 496
 497         if (0 < g_slist_length(g_config_client_list)) {
 498                 SLOG(LOG_DEBUG, stt_tag(), "Client count (%d)", g_slist_length(g_config_client_list));
 499         }
 500         return;
 501 }
 502
 503 void __stt_config_release_engine()
 504 {
 505         GSList *iter = NULL;
 506         stt_engine_info_s *engine_info = NULL;
 507
 508         if (0 < g_slist_length(g_engine_list)) {
 509
 510                 /* Get a first item */
 511                 iter = g_slist_nth(g_engine_list, 0);
 512
 513                 while (NULL != iter) {
 514                         engine_info = iter->data;
 515
 516                         if (NULL != engine_info) {
 517                                 g_engine_list = g_slist_remove(g_engine_list, engine_info);
 518
 519                                 stt_parser_free_engine_info(engine_info);
 520                         }
 521
 522                         iter = g_slist_nth(g_engine_list, 0);
 523                 }
 524         }
 525         return;
 526 }
 527
 528 int __stt_config_mgr_check_engine_is_valid(const char* engine_id)
 529 {
 530         if (NULL == engine_id) {
 531                 SLOG(LOG_ERROR, stt_tag(), "Input parameter is NULL");
 532                 return STT_CONFIG_ERROR_INVALID_PARAMETER;
 533         }
 534
 535         GSList *iter = NULL;
 536         stt_engine_info_s *engine_info = NULL;
 537
 538         if (0 >= g_slist_length(g_engine_list)) {
 539                 SLOG(LOG_ERROR, stt_tag(), "There is no engine!!");
 540                 return STT_CONFIG_ERROR_ENGINE_NOT_FOUND;
 541         }
 542
 543         /* Get a first item */
 544         iter = g_slist_nth(g_engine_list, 0);
 545
 546         while (NULL != iter) {
 547                 engine_info = iter->data;
 548
 549                 if (NULL == engine_info) {
 550                         SLOG(LOG_ERROR, stt_tag(), "engine info is NULL");
 551                         return STT_CONFIG_ERROR_ENGINE_NOT_FOUND;
 552                 }
 553
 554                 if (0 == strcmp(engine_id, engine_info->uuid)) {
 555                         SLOG(LOG_DEBUG, stt_tag(), "Default engine is valid : %s", engine_id);
 556                         return STT_CONFIG_ERROR_NONE;
 557                 }
 558
 559                 iter = g_slist_next(iter);
 560         }
 561
 562         /* Change default engine */
 563         iter = g_slist_nth(g_engine_list, 0);
 564         if (NULL == iter) {
 565                 SLOG(LOG_ERROR, stt_tag(), "Operation failed - false engine");
 566                 return STT_CONFIG_ERROR_OPERATION_FAILED;
 567         }
 568
 569         engine_info = iter->data;
 570         if (NULL == engine_info) {
 571                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] Engine info is NULL");
 572                 return STT_CONFIG_ERROR_ENGINE_NOT_FOUND;
 573         }
 574
 575         if (NULL != g_config_info->engine_id) {
 576                 free(g_config_info->engine_id);
 577                 g_config_info->engine_id = NULL;
 578         }
 579         if (NULL != g_config_info->setting) {
 580                 free(g_config_info->setting);
 581                 g_config_info->setting = NULL;
 582         }
 583
 584         if (NULL != engine_info->uuid) {
 585                 g_config_info->engine_id = strdup(engine_info->uuid);
 586         }
 587
 588         if (NULL != engine_info->setting) {
 589                 g_config_info->setting = strdup(engine_info->setting);
 590         }
 591
 592         /* Engine is valid*/
 593         GSList *iter_lang = NULL;
 594         char* lang;
 595         bool is_valid_lang = false;
 596
 597         if (0 >= g_slist_length(engine_info->languages)) {
 598                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] Empty supported language");
 599                 return STT_CONFIG_ERROR_ENGINE_NOT_FOUND;
 600         }
 601
 602         /* Get a first item */
 603         iter_lang = g_slist_nth(engine_info->languages, 0);
 604
 605         while (NULL != iter_lang) {
 606                 /*Get handle data from list*/
 607                 lang = iter_lang->data;
 608
 609                 SLOG(LOG_DEBUG, stt_tag(), " %s", lang);
 610                 if (NULL != lang) {
 611                         if (0 == strcmp(lang, g_config_info->language)) {
 612                                 /* language is valid */
 613                                 is_valid_lang = true;
 614                                 break;
 615                         }
 616                 }
 617
 618                 /*Get next item*/
 619                 iter_lang = g_slist_next(iter_lang);
 620         }
 621
 622         if (false == is_valid_lang) {
 623                 iter_lang = g_slist_nth(engine_info->languages, 0);
 624                 if (NULL != iter_lang) {
 625                         lang = iter_lang->data;
 626                         if (NULL != lang) {
 627                                 if (NULL != g_config_info->language)
 628                                         free(g_config_info->language);
 629                                 g_config_info->language = strdup(lang);
 630                         }
 631                 }
 632         }
 633
 634         /* Check options */
 635         if (false == engine_info->support_silence_detection) {
 636                 if (true == g_config_info->silence_detection)
 637                         g_config_info->silence_detection = false;
 638         }
 639
 640         SLOG(LOG_DEBUG, stt_tag(), "[Config] Engine changed");
 641         SLOG(LOG_DEBUG, stt_tag(), "  Engine : %s", g_config_info->engine_id);
 642         SLOG(LOG_DEBUG, stt_tag(), "  Setting : %s", g_config_info->setting);
 643         SLOG(LOG_DEBUG, stt_tag(), "  language : %s", g_config_info->language);
 644         SLOG(LOG_DEBUG, stt_tag(), "  Silence detection : %s", g_config_info->silence_detection ? "on" : "off");
 645         SLOG(LOG_DEBUG, stt_tag(), "  Credential : %s", g_config_info->credential ? "true" : "false");
 646
 647         if (0 != stt_parser_set_engine(g_config_info->engine_id, g_config_info->setting, g_config_info->language,
 648                 g_config_info->silence_detection, g_config_info->credential)) {
 649                         SLOG(LOG_ERROR, stt_tag(), "Fail to save config");
 650                         return STT_CONFIG_ERROR_OPERATION_FAILED;
 651         }
 652
 653         return STT_CONFIG_ERROR_NONE;
 654 }
 655
 656 static void __get_engine_list(const char* directory)
 657 {
 658         DIR *dp = NULL;
 659         int ret = -1;
 660         struct dirent entry;
 661         struct dirent *dirp = NULL;
 662
 663         if (NULL == directory) {
 664                 SLOG(LOG_ERROR, stt_tag(), "[Directory ERROR] Directory is NULL");
 665                 return;
 666         }
 667
 668         dp  = opendir(directory);
 669         if (NULL != dp) {
 670                 do {
 671                         ret = readdir_r(dp, &entry, &dirp);
 672                         if (0 != ret) {
 673                                 SLOG(LOG_ERROR, stt_tag(), "[File ERROR] Fail to read directory");
 674                                 break;
 675                         }
 676
 677                         if (NULL != dirp) {
 678                                 if (!strcmp(".", dirp->d_name) || !strcmp("..", dirp->d_name))
 679                                         continue;
 680
 681                                 stt_engine_info_s* info;
 682                                 char* filepath = NULL;
 683                                 int filesize;
 684
 685                                 filesize = strlen(STT_DEFAULT_ENGINE_INFO) + strlen(dirp->d_name) + 5;
 686                                 filepath = (char*)calloc(filesize, sizeof(char));
 687
 688                                 if (NULL != filepath) {
 689                                         snprintf(filepath, filesize, "%s/%s", directory, dirp->d_name);
 690                                 } else {
 691                                         SLOG(LOG_ERROR, stt_tag(), "[Config ERROR] Memory not enough!!");
 692                                         continue;
 693                                 }
 694
 695                                 if (0 == stt_parser_get_engine_info(filepath, &info)) {
 696                                         g_engine_list = g_slist_append(g_engine_list, info);
 697                                 }
 698
 699                                 if (NULL != filepath) {
 700                                         free(filepath);
 701                                         filepath = NULL;
 702                                 }
 703                         }
 704                 } while (NULL != dirp);
 705
 706                 closedir(dp);
 707         } else {
 708                 SLOG(LOG_WARN, stt_tag(), "[Config WARNING] Fail to open directory");
 709         }
 710
 711         return;
 712 }
 713
 714 int stt_config_mgr_initialize(int uid)
 715 {
 716         GSList *iter = NULL;
 717         int* get_uid;
 718         stt_config_client_s* temp_client = NULL;
 719
 720         if (0 < g_slist_length(g_config_client_list)) {
 721                 /* Check uid */
 722                 iter = g_slist_nth(g_config_client_list, 0);
 723
 724                 while (NULL != iter) {
 725                         get_uid = iter->data;
 726
 727                         if (uid == *get_uid) {
 728                                 SLOG(LOG_WARN, stt_tag(), "[CONFIG] uid(%d) has already registered", uid);
 729                                 return 0;
 730                         }
 731
 732                         iter = g_slist_next(iter);
 733                 }
 734
 735                 temp_client = (stt_config_client_s*)calloc(1, sizeof(stt_config_client_s));
 736                 if (NULL == temp_client) {
 737                         SLOG(LOG_ERROR, stt_tag(), "[ERROR] Fail to allocate memory");
 738                         return STT_CONFIG_ERROR_OUT_OF_MEMORY;
 739                 }
 740                 temp_client->uid = uid;
 741                 temp_client->bool_cb = NULL;
 742                 temp_client->engine_cb = NULL;
 743                 temp_client->lang_cb = NULL;
 744                 temp_client->user_data = NULL;
 745
 746                 /* Add uid */
 747                 g_config_client_list = g_slist_append(g_config_client_list, temp_client);
 748
 749                 SLOG(LOG_WARN, stt_tag(), "[CONFIG] Add uid(%d) but config has already initialized", uid);
 750                 return STT_CONFIG_ERROR_NONE;
 751         }
 752
 753         /* Get file name from default engine directory */
 754         g_engine_list = NULL;
 755
 756         SLOG(LOG_WARN, stt_tag(), "[CONFIG] default engine info(%s)", STT_DEFAULT_ENGINE_INFO);
 757
 758         SLOG(LOG_DEBUG, stt_tag(), "[CONFIG] Get default engine list");
 759         __get_engine_list(STT_DEFAULT_ENGINE_INFO);
 760         SLOG(LOG_DEBUG, stt_tag(), "[CONFIG] Get download engine list");
 761         __get_engine_list(STT_DOWNLOAD_ENGINE_INFO);
 762
 763         __stt_config_mgr_print_engine_info();
 764
 765         if (0 != stt_parser_load_config(&g_config_info)) {
 766                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] Fail to parse configure information");
 767                 __stt_config_release_client(uid);
 768                 __stt_config_release_engine();
 769                 return STT_CONFIG_ERROR_OPERATION_FAILED;
 770         }
 771
 772         /* Check whether engine id is valid */
 773         if (0 != __stt_config_mgr_check_engine_is_valid(g_config_info->engine_id)) {
 774                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] Fail to get default engine");
 775                 __stt_config_release_client(uid);
 776                 __stt_config_release_engine();
 777                 stt_parser_unload_config(g_config_info);
 778                 return STT_CONFIG_ERROR_ENGINE_NOT_FOUND;
 779         }
 780
 781         if (true == g_config_info->auto_lang) {
 782                 /* Check language with display language */
 783                 __stt_config_set_auto_language();
 784         } else {
 785                 if (false == __stt_config_mgr_check_lang_is_valid(g_config_info->engine_id, g_config_info->language)) {
 786                         /* Default language is not valid */
 787                         char* tmp_language;
 788                         if (0 != __stt_config_mgr_select_lang(g_config_info->engine_id, &tmp_language)) {
 789                                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] Fail to select language");
 790                                 __stt_config_release_client(uid);
 791                                 __stt_config_release_engine();
 792                                 stt_parser_unload_config(g_config_info);
 793                                 return STT_CONFIG_ERROR_OPERATION_FAILED;
 794                         }
 795
 796                         if (NULL != tmp_language) {
 797                                 if (NULL != g_config_info->language) {
 798                                         free(g_config_info->language);
 799                                         g_config_info->language = strdup(tmp_language);
 800                                 }
 801
 802                                 free(tmp_language);
 803                         }
 804                 }
 805         }
 806
 807         /* print stt-service config */
 808         SLOG(LOG_DEBUG, stt_tag(), "== STT service config ==");
 809         SLOG(LOG_DEBUG, stt_tag(), " engine : %s", g_config_info->engine_id);
 810         SLOG(LOG_DEBUG, stt_tag(), " setting : %s", g_config_info->setting);
 811         SLOG(LOG_DEBUG, stt_tag(), " auto language : %s", g_config_info->auto_lang ? "on" : "off");
 812         SLOG(LOG_DEBUG, stt_tag(), " language : %s", g_config_info->language);
 813         SLOG(LOG_DEBUG, stt_tag(), " silence detection : %s", g_config_info->silence_detection ? "on" : "off");
 814         SLOG(LOG_DEBUG, stt_tag(), " credential : %s", g_config_info->credential ? "true" : "false");
 815         SLOG(LOG_DEBUG, stt_tag(), "===================");
 816
 817         if (0 != __stt_config_mgr_register_config_event()) {
 818                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] Fail to register config event");
 819                 __stt_config_release_client(uid);
 820                 __stt_config_release_engine();
 821                 stt_parser_unload_config(g_config_info);
 822                 return STT_CONFIG_ERROR_OPERATION_FAILED;
 823         }
 824
 825         /* Register to detect display language change */
 826         vconf_notify_key_changed(VCONFKEY_LANGSET, __stt_config_language_changed_cb, NULL);
 827
 828         temp_client = (stt_config_client_s*)calloc(1, sizeof(stt_config_client_s));
 829         if (NULL == temp_client) {
 830                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] Fail to allocate memory");
 831                 return STT_CONFIG_ERROR_OUT_OF_MEMORY;
 832         }
 833         temp_client->uid = uid;
 834         temp_client->bool_cb = NULL;
 835         temp_client->engine_cb = NULL;
 836         temp_client->lang_cb = NULL;
 837         temp_client->user_data = NULL;
 838
 839         /* Add uid */
 840         g_config_client_list = g_slist_append(g_config_client_list, temp_client);
 841
 842         return STT_CONFIG_ERROR_NONE;
 843 }
 844
 845 int stt_config_mgr_finalize(int uid)
 846 {
 847         GSList *iter = NULL;
 848         stt_config_client_s* temp_client = NULL;
 849
 850         if (0 < g_slist_length(g_config_client_list)) {
 851                 /* Check uid */
 852                 iter = g_slist_nth(g_config_client_list, 0);
 853
 854                 while (NULL != iter) {
 855                         temp_client = iter->data;
 856
 857                         if (NULL != temp_client) {
 858                                 if (uid == temp_client->uid) {
 859                                         g_config_client_list = g_slist_remove(g_config_client_list, temp_client);
 860                                         free(temp_client);
 861                                         temp_client = NULL;
 862                                         break;
 863                                 }
 864                         }
 865
 866                         iter = g_slist_next(iter);
 867                 }
 868         }
 869
 870         if (0 < g_slist_length(g_config_client_list)) {
 871                 SLOG(LOG_DEBUG, stt_tag(), "Client count (%d)", g_slist_length(g_config_client_list));
 872                 return STT_CONFIG_ERROR_NONE;
 873         }
 874
 875         stt_engine_info_s *engine_info = NULL;
 876
 877         if (0 < g_slist_length(g_engine_list)) {
 878
 879                 /* Get a first item */
 880                 iter = g_slist_nth(g_engine_list, 0);
 881
 882                 while (NULL != iter) {
 883                         engine_info = iter->data;
 884
 885                         if (NULL != engine_info) {
 886                                 g_engine_list = g_slist_remove(g_engine_list, engine_info);
 887
 888                                 stt_parser_free_engine_info(engine_info);
 889                         }
 890
 891                         iter = g_slist_nth(g_engine_list, 0);
 892                 }
 893         }
 894
 895         vconf_ignore_key_changed(VCONFKEY_LANGSET, __stt_config_language_changed_cb);
 896
 897         __stt_config_mgr_unregister_config_event();
 898
 899         if (NULL != g_config_info) {
 900                 stt_parser_unload_config(g_config_info);
 901                 g_config_info = NULL;
 902         }
 903
 904         return STT_CONFIG_ERROR_NONE;
 905 }
 906
 907 int stt_config_mgr_set_callback(int uid, stt_config_engine_changed_cb engine_cb, stt_config_lang_changed_cb lang_cb, stt_config_bool_changed_cb bool_cb, void* user_data)
 908 {
 909         GSList *iter = NULL;
 910         stt_config_client_s* temp_client = NULL;
 911
 912         /* Call all callbacks of client*/
 913         iter = g_slist_nth(g_config_client_list, 0);
 914
 915         while (NULL != iter) {
 916                 temp_client = iter->data;
 917
 918                 if (NULL != temp_client) {
 919                         if (uid == temp_client->uid) {
 920                                 temp_client->engine_cb = engine_cb;
 921                                 temp_client->lang_cb = lang_cb;
 922                                 temp_client->bool_cb = bool_cb;
 923                                 temp_client->user_data = user_data;
 924                         }
 925                 }
 926
 927                 iter = g_slist_next(iter);
 928         }
 929
 930         return STT_CONFIG_ERROR_NONE;
 931 }
 932
 933 int stt_config_mgr_unset_callback(int uid)
 934 {
 935         GSList *iter = NULL;
 936         stt_config_client_s* temp_client = NULL;
 937
 938         /* Call all callbacks of client*/
 939         iter = g_slist_nth(g_config_client_list, 0);
 940
 941         while (NULL != iter) {
 942                 temp_client = iter->data;
 943
 944                 if (NULL != temp_client) {
 945                         if (uid == temp_client->uid) {
 946                                 temp_client->engine_cb = NULL;
 947                                 temp_client->lang_cb = NULL;
 948                                 temp_client->bool_cb = NULL;
 949                                 temp_client->user_data = NULL;
 950                         }
 951                 }
 952
 953                 iter = g_slist_next(iter);
 954         }
 955
 956         return STT_CONFIG_ERROR_NONE;
 957 }
 958
 959 int stt_config_mgr_get_engine_list(stt_config_supported_engine_cb callback, void* user_data)
 960 {
 961         if (0 >= g_slist_length(g_config_client_list)) {
 962                 SLOG(LOG_ERROR, stt_tag(), "Not initialized");
 963                 return STT_CONFIG_ERROR_INVALID_STATE;
 964         }
 965
 966         if (NULL == callback) {
 967                 return STT_CONFIG_ERROR_INVALID_PARAMETER;
 968         }
 969
 970         GSList *iter = NULL;
 971         stt_engine_info_s *engine_info = NULL;
 972
 973         if (0 >= g_slist_length(g_engine_list)) {
 974                 SLOG(LOG_WARN, stt_tag(), "[ERROR] Engine list is NULL");
 975                 return STT_CONFIG_ERROR_ENGINE_NOT_FOUND;
 976         }
 977
 978         /* Get a first item */
 979         iter = g_slist_nth(g_engine_list, 0);
 980
 981         while (NULL != iter) {
 982                 engine_info = iter->data;
 983
 984                 if (NULL == engine_info) {
 985                         SLOG(LOG_ERROR, stt_tag(), " Engine info is NULL");
 986                         return STT_CONFIG_ERROR_OPERATION_FAILED;
 987                 }
 988
 989                 if (false == callback(engine_info->uuid, engine_info->name,
 990                         engine_info->setting, engine_info->support_silence_detection, user_data)) {
 991                         break;
 992                 }
 993
 994                 iter = g_slist_next(iter);
 995         }
 996
 997         return STT_CONFIG_ERROR_NONE;
 998 }
 999
1000 int stt_config_mgr_get_engine(char** engine)
1001 {
1002         if (0 >= g_slist_length(g_config_client_list)) {
1003                 SLOG(LOG_ERROR, stt_tag(), "Not initialized");
1004                 return STT_CONFIG_ERROR_INVALID_STATE;
1005         }
1006
1007         if (NULL == engine) {
1008                 return STT_CONFIG_ERROR_INVALID_PARAMETER;
1009         }
1010
1011         if (NULL != g_config_info->engine_id) {
1012                 *engine = strdup(g_config_info->engine_id);
1013         } else {
1014                 SLOG(LOG_ERROR, stt_tag(), " Engine id is NULL");
1015                 return STT_CONFIG_ERROR_ENGINE_NOT_FOUND;
1016         }
1017
1018         return STT_CONFIG_ERROR_NONE;
1019 }
1020
1021 int stt_config_mgr_set_engine(const char* engine)
1022 {
1023         if (0 >= g_slist_length(g_config_client_list)) {
1024                 SLOG(LOG_ERROR, stt_tag(), "Not initialized");
1025                 return STT_CONFIG_ERROR_INVALID_STATE;
1026         }
1027
1028         if (NULL == g_config_info) {
1029                 return STT_CONFIG_ERROR_OPERATION_FAILED;
1030         }
1031
1032         if (NULL == engine || NULL == g_config_info->engine_id) {
1033                 return STT_CONFIG_ERROR_INVALID_PARAMETER;
1034         }
1035
1036         /* Check current engine id with new engine id */
1037         if (0 == strcmp(g_config_info->engine_id, engine)) {
1038                 return 0;
1039         }
1040
1041         SLOG(LOG_DEBUG, stt_tag(), "New engine id : %s", engine);
1042
1043         GSList *iter = NULL;
1044         stt_engine_info_s *engine_info = NULL;
1045         bool is_valid_engine = false;
1046
1047         /* Get a first item */
1048         iter = g_slist_nth(g_engine_list, 0);
1049
1050         while (NULL != iter) {
1051                 engine_info = iter->data;
1052
1053                 if (NULL == engine_info) {
1054                         SLOG(LOG_ERROR, stt_tag(), "[ERROR] Engine info is NULL");
1055                         iter = g_slist_next(iter);
1056                         continue;
1057                 }
1058
1059                 /* Check engine id is valid */
1060                 if (0 != strcmp(engine, engine_info->uuid)) {
1061                         iter = g_slist_next(iter);
1062                         continue;
1063                 }
1064
1065                 if (NULL != g_config_info->engine_id) {
1066                         free(g_config_info->engine_id);
1067                         g_config_info->engine_id = NULL;
1068                 }
1069
1070                 g_config_info->engine_id = strdup(engine);
1071
1072                 if (NULL != g_config_info->setting) {
1073                         free(g_config_info->setting);
1074                         g_config_info->setting = NULL;
1075                 }
1076
1077                 if (NULL != engine_info->setting) {
1078                         g_config_info->setting = strdup(engine_info->setting);
1079                 } else {
1080                         g_config_info->setting = NULL;
1081                 }
1082
1083                 /* Engine is valid*/
1084                 GSList *iter_lang = NULL;
1085                 char* lang;
1086                 bool is_valid_lang = false;
1087
1088                 /* Get a first item */
1089                 iter_lang = g_slist_nth(engine_info->languages, 0);
1090
1091                 while (NULL != iter_lang) {
1092                         /*Get handle data from list*/
1093                         lang = iter_lang->data;
1094
1095                         SLOG(LOG_DEBUG, stt_tag(), " %s", lang);
1096                         if (NULL != lang && NULL != g_config_info->language) {
1097                                 if (0 == strcmp(lang, g_config_info->language)) {
1098                                         /* language is valid */
1099                                         is_valid_lang = true;
1100
1101                                         free(g_config_info->language);
1102                                         g_config_info->language = strdup(lang);
1103
1104                                         break;
1105                                 }
1106                         }
1107
1108                         /*Get next item*/
1109                         iter_lang = g_slist_next(iter_lang);
1110                 }
1111
1112                 if (false == is_valid_lang) {
1113                         if (NULL != g_config_info->language) {
1114                                 free(g_config_info->language);
1115                                 g_config_info->language = NULL;
1116
1117                                 iter_lang = g_slist_nth(engine_info->languages, 0);
1118                                 if (NULL == iter_lang) {
1119                                         SLOG(LOG_ERROR, stt_tag(), "Fail to get default language");
1120                                         break;
1121                                 }
1122
1123                                 lang = iter_lang->data;
1124
1125                                 g_config_info->language = strdup(lang);
1126                         }
1127                 }
1128
1129                 /* Check options */
1130                 if (false == engine_info->support_silence_detection) {
1131                         if (true == g_config_info->silence_detection)
1132                                 g_config_info->silence_detection = false;
1133                 }
1134
1135                 if (false == engine_info->need_credential) {
1136                         if (true == g_config_info->credential)
1137                                 g_config_info->credential = false;
1138                 }
1139
1140                 is_valid_engine = true;
1141                 break;
1142         }
1143
1144         if (true == is_valid_engine) {
1145                 SLOG(LOG_DEBUG, stt_tag(), "[Config] Engine changed");
1146                 SLOG(LOG_DEBUG, stt_tag(), "  Engine : %s", g_config_info->engine_id);
1147                 SLOG(LOG_DEBUG, stt_tag(), "  Setting : %s", g_config_info->setting);
1148                 SLOG(LOG_DEBUG, stt_tag(), "  language : %s", g_config_info->language);
1149                 SLOG(LOG_DEBUG, stt_tag(), "  Silence detection : %s", g_config_info->silence_detection ? "on" : "off");
1150                 SLOG(LOG_DEBUG, stt_tag(), "  Credential : %s", g_config_info->credential ? "true" : "false");
1151
1152                 if (0 != stt_parser_set_engine(g_config_info->engine_id, g_config_info->setting, g_config_info->language,
1153                         g_config_info->silence_detection, g_config_info->credential)) {
1154                                 SLOG(LOG_ERROR, stt_tag(), " Fail to save config");
1155                                 return STT_CONFIG_ERROR_OPERATION_FAILED;
1156                 }
1157         } else {
1158                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] Engine id is not valid");
1159                 return STT_CONFIG_ERROR_INVALID_PARAMETER;
1160         }
1161
1162         return 0;
1163 }
1164
1165 int stt_config_mgr_get_engine_agreement(const char* engine, char** agreement)
1166 {
1167         if (0 >= g_slist_length(g_engine_list)) {
1168                 SLOG(LOG_ERROR, stt_tag(), "There is no engine");
1169                 return STT_CONFIG_ERROR_INVALID_STATE;
1170         }
1171
1172         if (NULL == agreement) {
1173                 SLOG(LOG_ERROR, stt_tag(), "Input parameter is NULL");
1174                 return STT_CONFIG_ERROR_INVALID_PARAMETER;
1175         }
1176
1177         GSList *iter = NULL;
1178         stt_engine_info_s *engine_info = NULL;
1179         char* current_engine = NULL;
1180
1181         if (NULL == engine) {
1182                 current_engine = strdup(g_config_info->engine_id);
1183                 if (NULL == current_engine) {
1184                         SLOG(LOG_ERROR, stt_tag(), "[ERROR] Fail to allocate memory");
1185                         return STT_CONFIG_ERROR_OUT_OF_MEMORY;;
1186                 }
1187         } else {
1188                 current_engine = strdup(engine);
1189                 if (NULL == current_engine) {
1190                         SLOG(LOG_ERROR, stt_tag(), "[ERROR] Fail to allocate memory");
1191                         return STT_CONFIG_ERROR_OUT_OF_MEMORY;;
1192                 }
1193         }
1194
1195         /* Get a first item */
1196         iter = g_slist_nth(g_engine_list, 0);
1197
1198         while (NULL != iter) {
1199                 engine_info = iter->data;
1200
1201                 if (NULL == engine_info) {
1202                         SLOG(LOG_ERROR, stt_tag(), "[ERROR] engine info is NULL");
1203                         if (NULL != current_engine)     free(current_engine);
1204                         return STT_CONFIG_ERROR_OPERATION_FAILED;
1205                 }
1206
1207                 if (0 != strcmp(current_engine, engine_info->uuid)) {
1208                         iter = g_slist_next(iter);
1209                         continue;
1210                 }
1211
1212                 if (NULL != engine_info->agreement) {
1213                         *agreement = strdup(engine_info->agreement);
1214                 } else {
1215                         SLOG(LOG_WARN, stt_tag(), "[WARNING] engine agreement is not support");
1216                 }
1217                 break;
1218         }
1219
1220         if (NULL != current_engine)     free(current_engine);
1221
1222         return STT_CONFIG_ERROR_NONE;
1223 }
1224
1225 int stt_config_mgr_get_language_list(const char* engine_id, stt_config_supported_langauge_cb callback, void* user_data)
1226 {
1227         if (0 >= g_slist_length(g_config_client_list)) {
1228                 SLOG(LOG_ERROR, stt_tag(), "Not initialized");
1229                 return STT_CONFIG_ERROR_INVALID_STATE;
1230         }
1231
1232         if (0 >= g_slist_length(g_engine_list)) {
1233                 SLOG(LOG_ERROR, stt_tag(), "There is no engine");
1234                 return STT_CONFIG_ERROR_ENGINE_NOT_FOUND;
1235         }
1236
1237         GSList *iter = NULL;
1238         stt_engine_info_s *engine_info = NULL;
1239
1240         /* Get a first item */
1241         iter = g_slist_nth(g_engine_list, 0);
1242
1243         while (NULL != iter) {
1244                 engine_info = iter->data;
1245
1246                 if (NULL == engine_info) {
1247                         SLOG(LOG_ERROR, stt_tag(), "[ERROR] engine info is NULL");
1248                         return STT_CONFIG_ERROR_OPERATION_FAILED;
1249                 }
1250
1251                 if (0 != strcmp(engine_id, engine_info->uuid)) {
1252                         iter = g_slist_next(iter);
1253                         continue;
1254                 }
1255
1256                 GSList *iter_lang = NULL;
1257                 char* lang;
1258
1259                 /* Get a first item */
1260                 iter_lang = g_slist_nth(engine_info->languages, 0);
1261
1262                 while (NULL != iter_lang) {
1263                         /*Get handle data from list*/
1264                         lang = iter_lang->data;
1265
1266                         if (NULL != lang) {
1267                                 SLOG(LOG_DEBUG, stt_tag(), " %s", lang);
1268                                 if (false == callback(engine_info->uuid, lang, user_data))
1269                                         break;
1270                         }
1271
1272                         /*Get next item*/
1273                         iter_lang = g_slist_next(iter_lang);
1274                 }
1275                 break;
1276         }
1277
1278         return STT_CONFIG_ERROR_NONE;
1279 }
1280
1281 int stt_config_mgr_get_default_language(char** language)
1282 {
1283         if (0 >= g_slist_length(g_config_client_list)) {
1284                 SLOG(LOG_ERROR, stt_tag(), "Not initialized");
1285                 return STT_CONFIG_ERROR_INVALID_STATE;
1286         }
1287
1288         if (NULL == language) {
1289                 return STT_CONFIG_ERROR_INVALID_PARAMETER;
1290         }
1291
1292         if (NULL != g_config_info->language) {
1293                 *language = strdup(g_config_info->language);
1294         } else {
1295                 SLOG(LOG_ERROR, stt_tag(), " language is NULL");
1296                 return STT_CONFIG_ERROR_OPERATION_FAILED;
1297         }
1298
1299         return STT_CONFIG_ERROR_NONE;
1300 }
1301
1302 int stt_config_mgr_set_default_language(const char* language)
1303 {
1304         if (0 >= g_slist_length(g_config_client_list)) {
1305                 SLOG(LOG_ERROR, stt_tag(), "Not initialized");
1306                 return STT_CONFIG_ERROR_INVALID_STATE;
1307         }
1308
1309         if (NULL == language) {
1310                 return STT_CONFIG_ERROR_INVALID_PARAMETER;
1311         }
1312
1313         /* Check language is valid */
1314         if (NULL != g_config_info->language) {
1315                 if (0 != stt_parser_set_language(language)) {
1316                         SLOG(LOG_ERROR, stt_tag(), "Fail to save engine id");
1317                         return STT_CONFIG_ERROR_OPERATION_FAILED;
1318                 }
1319                 free(g_config_info->language);
1320                 g_config_info->language = strdup(language);
1321         } else {
1322                 SLOG(LOG_ERROR, stt_tag(), " language is NULL");
1323                 return STT_CONFIG_ERROR_OPERATION_FAILED;
1324         }
1325
1326         return STT_CONFIG_ERROR_NONE;
1327 }
1328
1329 int stt_config_mgr_get_auto_language(bool* value)
1330 {
1331         if (0 >= g_slist_length(g_config_client_list)) {
1332                 SLOG(LOG_ERROR, stt_tag(), "Not initialized");
1333                 return STT_CONFIG_ERROR_INVALID_STATE;
1334         }
1335
1336         if (NULL == value) {
1337                 return STT_CONFIG_ERROR_INVALID_PARAMETER;
1338         }
1339
1340         *value = g_config_info->auto_lang;
1341
1342         return STT_CONFIG_ERROR_NONE;
1343 }
1344
1345 int stt_config_mgr_set_auto_language(bool value)
1346 {
1347         if (0 >= g_slist_length(g_config_client_list)) {
1348                 SLOG(LOG_ERROR, stt_tag(), "Not initialized");
1349                 return STT_CONFIG_ERROR_INVALID_STATE;
1350         }
1351
1352         if (g_config_info->auto_lang != value) {
1353                 /* Check language is valid */
1354                 if (0 != stt_parser_set_auto_lang(value)) {
1355                         SLOG(LOG_ERROR, stt_tag(), "Fail to save engine id");
1356                         return STT_CONFIG_ERROR_OPERATION_FAILED;
1357                 }
1358                 g_config_info->auto_lang = value;
1359
1360                 if (true == g_config_info->auto_lang) {
1361                         __stt_config_set_auto_language();
1362                 }
1363         }
1364
1365         return STT_CONFIG_ERROR_NONE;
1366 }
1367
1368 int stt_config_mgr_get_silence_detection(bool* value)
1369 {
1370         if (0 >= g_slist_length(g_config_client_list)) {
1371                 SLOG(LOG_ERROR, stt_tag(), "Not initialized");
1372                 return STT_CONFIG_ERROR_INVALID_STATE;
1373         }
1374
1375         if (NULL == value)
1376                 return STT_CONFIG_ERROR_INVALID_PARAMETER;
1377
1378         *value = g_config_info->silence_detection;
1379
1380         return STT_CONFIG_ERROR_NONE;
1381 }
1382
1383 int stt_config_mgr_set_silence_detection(bool value)
1384 {
1385         if (0 >= g_slist_length(g_config_client_list)) {
1386                 SLOG(LOG_ERROR, stt_tag(), "Not initialized");
1387                 return STT_CONFIG_ERROR_INVALID_STATE;
1388         }
1389
1390         if (0 != stt_parser_set_silence_detection(value)) {
1391                 SLOG(LOG_ERROR, stt_tag(), "Fail to save engine id");
1392                 return STT_CONFIG_ERROR_OPERATION_FAILED;
1393         }
1394
1395         g_config_info->silence_detection = value;
1396
1397         return STT_CONFIG_ERROR_NONE;
1398 }
1399
1400 bool stt_config_check_default_engine_is_valid(const char* engine)
1401 {
1402         if (0 >= g_slist_length(g_config_client_list)) {
1403                 SLOG(LOG_ERROR, stt_tag(), "Not initialized");
1404                 return false;
1405         }
1406
1407         if (NULL == engine) {
1408                 return false;
1409         }
1410
1411         if (0 >= g_slist_length(g_engine_list))
1412                 return false;
1413
1414         GSList *iter = NULL;
1415         stt_engine_info_s *engine_info = NULL;
1416
1417         /* Get a first item */
1418         iter = g_slist_nth(g_engine_list, 0);
1419
1420         while (NULL != iter) {
1421                 engine_info = iter->data;
1422
1423                 if (NULL != engine_info) {
1424                         if (0 == strcmp(engine, engine_info->uuid)) {
1425                                 return true;
1426                         }
1427                 }
1428                 iter = g_slist_next(iter);
1429         }
1430
1431         return false;
1432 }
1433
1434 bool stt_config_check_default_language_is_valid(const char* language)
1435 {
1436         if (0 >= g_slist_length(g_config_client_list)) {
1437                 SLOG(LOG_ERROR, stt_tag(), "Not initialized");
1438                 return false;
1439         }
1440
1441         if (NULL == language) {
1442                 return false;
1443         }
1444
1445         if (NULL == g_config_info->engine_id) {
1446                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] Default engine id is NULL");
1447                 return false;
1448         }
1449
1450         if (0 >= g_slist_length(g_engine_list))
1451                 return false;
1452
1453         GSList *iter = NULL;
1454         stt_engine_info_s *engine_info = NULL;
1455
1456         /* Get a first item */
1457         iter = g_slist_nth(g_engine_list, 0);
1458
1459         while (NULL != iter) {
1460                 engine_info = iter->data;
1461
1462                 if (NULL == engine_info) {
1463                         SLOG(LOG_ERROR, stt_tag(), "[ERROR] Engine info is NULL");
1464                         iter = g_slist_next(iter);
1465                         continue;
1466                 }
1467
1468                 if (0 != strcmp(g_config_info->engine_id, engine_info->uuid)) {
1469                         iter = g_slist_next(iter);
1470                         continue;
1471                 }
1472
1473                 GSList *iter_lang = NULL;
1474                 char* lang;
1475
1476                 /* Get a first item */
1477                 iter_lang = g_slist_nth(engine_info->languages, 0);
1478
1479                 while (NULL != iter_lang) {
1480                         lang = iter_lang->data;
1481
1482                         if (0 == strcmp(language, lang))
1483                                 return true;
1484
1485                         /*Get next item*/
1486                         iter_lang = g_slist_next(iter_lang);
1487                 }
1488                 break;
1489         }
1490
1491         return false;
1492 }
1493
1494 int __stt_config_mgr_print_engine_info()
1495 {
1496         GSList *iter = NULL;
1497         stt_engine_info_s *engine_info = NULL;
1498
1499         if (0 >= g_slist_length(g_engine_list)) {
1500                 SLOG(LOG_DEBUG, stt_tag(), "-------------- engine list -----------------");
1501                 SLOG(LOG_DEBUG, stt_tag(), "  No Engine in engine directory");
1502                 SLOG(LOG_DEBUG, stt_tag(), "--------------------------------------------");
1503                 return 0;
1504         }
1505
1506         /* Get a first item */
1507         iter = g_slist_nth(g_engine_list, 0);
1508
1509         SLOG(LOG_DEBUG, stt_tag(), "--------------- engine list -----------------");
1510
1511         int i = 1;
1512         while (NULL != iter) {
1513                 engine_info = iter->data;
1514
1515                 SLOG(LOG_DEBUG, stt_tag(), "[%dth]", i);
1516                 SLOG(LOG_DEBUG, stt_tag(), " name : %s", engine_info->name);
1517                 SLOG(LOG_DEBUG, stt_tag(), " id   : %s", engine_info->uuid);
1518                 SLOG(LOG_DEBUG, stt_tag(), " setting : %s", engine_info->setting);
1519                 SLOG(LOG_DEBUG, stt_tag(), " agreement : %s", engine_info->agreement);
1520
1521                 SLOG(LOG_DEBUG, stt_tag(), " languages");
1522                 GSList *iter_lang = NULL;
1523                 char* lang;
1524                 if (g_slist_length(engine_info->languages) > 0) {
1525                         /* Get a first item */
1526                         iter_lang = g_slist_nth(engine_info->languages, 0);
1527
1528                         int j = 1;
1529                         while (NULL != iter_lang) {
1530                                 /*Get handle data from list*/
1531                                 lang = iter_lang->data;
1532
1533                                 SLOG(LOG_DEBUG, stt_tag(), "  [%dth] %s", j, lang);
1534
1535                                 /*Get next item*/
1536                                 iter_lang = g_slist_next(iter_lang);
1537                                 j++;
1538                         }
1539                 } else {
1540                         SLOG(LOG_ERROR, stt_tag(), "  language is NONE");
1541                 }
1542                 SLOG(LOG_DEBUG, stt_tag(), " silence support : %s",
1543                         engine_info->support_silence_detection ? "true" : "false");
1544                 iter = g_slist_next(iter);
1545                 i++;
1546         }
1547         SLOG(LOG_DEBUG, stt_tag(), "--------------------------------------------");
1548
1549         return 0;
1550 }
1551
1552
1553
1554 /**
1555 * time info functions
1556 */
1557 static GSList* g_time_list = NULL;
1558
1559 int stt_config_mgr_reset_time_info()
1560 {
1561         /* Remove time info */
1562         GSList *iter = NULL;
1563         stt_result_time_info_s *data = NULL;
1564
1565         /* Remove time info */
1566         iter = g_slist_nth(g_time_list, 0);
1567         while (NULL != iter) {
1568                 data = iter->data;
1569
1570                 g_time_list = g_slist_remove(g_time_list, data);
1571                 if (NULL != data) {
1572                         if (NULL != data->text) {
1573                                 free(data->text);
1574                                 data->text = NULL;
1575                         }
1576                         free(data);
1577                         data = NULL;
1578                 }
1579
1580                 /*Get next item*/
1581                 iter = g_slist_nth(g_time_list, 0);
1582         }
1583
1584         return 0;
1585 }
1586
1587 int stt_config_mgr_add_time_info(int index, int event, const char* text, long start_time, long end_time)
1588 {
1589         if (NULL == text) {
1590                 SLOG(LOG_ERROR, stt_tag(), "Invalid paramter : text is NULL");
1591                 return -1;
1592         }
1593
1594         stt_result_time_info_s *info = (stt_result_time_info_s*)calloc(1, sizeof(stt_result_time_info_s));
1595         if (NULL == info) {
1596                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] Fail to allocate memory");
1597                 return STT_CONFIG_ERROR_OUT_OF_MEMORY;
1598         }
1599         info->index = index;
1600         info->event = event;
1601         if (NULL != text) {
1602                 info->text = strdup(text);
1603         }
1604         info->start_time = start_time;
1605         info->end_time = end_time;
1606
1607         /* Add item to global list */
1608         g_time_list = g_slist_append(g_time_list, info);
1609
1610         return 0;
1611 }
1612
1613 int stt_config_mgr_foreach_time_info(stt_config_result_time_cb callback, void* user_data)
1614 {
1615         if (NULL == callback) {
1616                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] Input paramter is NULL : callback function");
1617                 return STT_CONFIG_ERROR_INVALID_PARAMETER;
1618         }
1619
1620         GSList* temp_time = NULL;
1621         int ret;
1622         ret = stt_parser_get_time_info(&temp_time);
1623         if (0 != ret) {
1624                 SLOG(LOG_WARN, stt_tag(), "[WARNING] Fail to get time info : %d", ret);
1625                 return STT_CONFIG_ERROR_OPERATION_FAILED;
1626         }
1627
1628         GSList *iter = NULL;
1629         stt_result_time_info_s *data = NULL;
1630
1631         /* Get a first item */
1632         iter = g_slist_nth(temp_time, 0);
1633         while (NULL != iter) {
1634                 data = iter->data;
1635
1636                 if (false == callback(data->index, data->event, data->text,
1637                         data->start_time, data->end_time, user_data)) {
1638                         break;
1639                 }
1640
1641                 /*Get next item*/
1642                 iter = g_slist_next(iter);
1643         }
1644
1645         /* Remove time info */
1646         iter = g_slist_nth(temp_time, 0);
1647         while (NULL != iter) {
1648                 data = iter->data;
1649
1650                 if (NULL != data) {
1651                         temp_time = g_slist_remove(temp_time, data);
1652
1653                         if (NULL != data->text) {
1654                                 free(data->text);
1655                                 data->text = NULL;
1656                         }
1657                         free(data);
1658                         data = NULL;
1659                 }
1660
1661                 /*Get next item*/
1662                 iter = g_slist_nth(temp_time, 0);
1663         }
1664
1665         return STT_CONFIG_ERROR_NONE;
1666 }
1667
1668 int stt_config_mgr_save_time_info_file()
1669 {
1670         if (0 == g_slist_length(g_time_list)) {
1671                 SLOG(LOG_WARN, stt_tag(), "[WARNING] There is no time info to save");
1672                 return STT_CONFIG_ERROR_OPERATION_FAILED;
1673         }
1674
1675         int ret = 0;
1676         ret = stt_parser_set_time_info(g_time_list);
1677         if (0 != ret) {
1678                 SLOG(LOG_ERROR, stt_tag(), "[ERROR] Fail to save time info : %d", ret);
1679                 return STT_CONFIG_ERROR_OPERATION_FAILED;
1680         }
1681
1682         return STT_CONFIG_ERROR_NONE;
1683 }
1684
1685 int stt_config_mgr_remove_time_info_file()
1686 {
1687         stt_parser_clear_time_info();
1688
1689         return STT_CONFIG_ERROR_NONE;
1690 }