client/stt_file.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 <aul.h>
  15 #include <dlfcn.h>
  16 #include <dirent.h>
  17 #include <dlog.h>
  18 #include <Ecore.h>
  19 #include <glib.h>
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <stdbool.h>
  23 #include <string.h>
  24 #include <unistd.h>
  25
  26 #include "stt_config_mgr.h"
  27 #include "stt_defs.h"
  28 #include "stt_engine.h"
  29 #include "stt_file.h"
  30 #include "stt_file_client.h"
  31 #include "stt_network.h"
  32
  33
  34 typedef struct _sttengine_info {
  35         int     engine_id;
  36
  37         char*   engine_uuid;
  38         char*   engine_path;
  39         char*   engine_name;
  40         char*   engine_setting_path;
  41         bool    use_network;
  42
  43         bool    is_loaded;
  44 } sttengine_info_s;
  45
  46 static GSList*  g_engine_list;
  47
  48
  49 #define STT_FILE_CONFIG_HANDLE  100000
  50
  51
  52 static const char* __stt_file_get_error_code(stt_file_error_e err)
  53 {
  54         switch (err) {
  55         case STT_FILE_ERROR_NONE:                       return "STT_FILE_ERROR_NONE";
  56         case STT_FILE_ERROR_OUT_OF_MEMORY:              return "STT_FILE_ERROR_OUT_OF_MEMORY";
  57         case STT_FILE_ERROR_IO_ERROR:                   return "STT_FILE_ERROR_IO_ERROR";
  58         case STT_FILE_ERROR_INVALID_PARAMETER:          return "STT_FILE_ERROR_INVALID_PARAMETER";
  59         case STT_FILE_ERROR_OUT_OF_NETWORK:             return "STT_FILE_ERROR_OUT_OF_NETWORK";
  60         case STT_FILE_ERROR_INVALID_STATE:              return "STT_FILE_ERROR_INVALID_STATE";
  61         case STT_FILE_ERROR_INVALID_LANGUAGE:           return "STT_FILE_ERROR_INVALID_LANGUAGE";
  62         case STT_FILE_ERROR_ENGINE_NOT_FOUND:           return "STT_FILE_ERROR_ENGINE_NOT_FOUND";
  63         case STT_FILE_ERROR_OPERATION_FAILED:           return "STT_FILE_ERROR_OPERATION_FAILED";
  64         case STT_FILE_ERROR_NOT_SUPPORTED_FEATURE:      return "STT_FILE_ERROR_NOT_SUPPORTED_FEATURE";
  65         case STT_FILE_ERROR_NOT_AGREE_SERVICE:          return "STT_FILE_ERROR_NOT_AGREE_SERVICE";
  66         default:
  67                 return "Invalid error code";
  68         }
  69 }
  70
  71 void __stt_file_engine_info_cb(const char* engine_uuid, const char* engine_name, const char* setting_ug_name,
  72                       bool use_network, void* user_data)
  73 {
  74         sttengine_info_s* temp = (sttengine_info_s*)user_data;
  75
  76         temp->engine_uuid = g_strdup(engine_uuid);
  77         temp->engine_name = g_strdup(engine_name);
  78         temp->engine_setting_path = g_strdup(setting_ug_name);
  79         temp->use_network = use_network;
  80 }
  81
  82 static int __stt_file_get_engine_info(const char* filepath, sttengine_info_s** info)
  83 {
  84 #ifdef __UNUSED_CODES__
  85         if (NULL == filepath || NULL == info) {
  86                 SLOG(LOG_ERROR, TAG_STTFC, "[Engine Agent ERROR] Invalid Parameter");
  87                 return STT_FILE_ERROR_INVALID_PARAMETER;
  88         }
  89
  90         /* load engine */
  91         char *error;
  92         void* handle;
  93
  94         handle = dlopen(filepath, RTLD_LAZY);
  95
  96         if (!handle) {
  97                 SECURE_SLOG(LOG_WARN, TAG_STTFC, "[Engine Agent] Invalid engine : %s", filepath);
  98                 return STT_FILE_ERROR_ENGINE_NOT_FOUND;
  99         }
 100
 101         /* link engine to stt-service */
 102         dlsym(handle, "sttp_load_engine");
 103         if ((error = dlerror()) != NULL) {
 104                 SLOG(LOG_WARN, TAG_STTFC, "[Engine Agent] Invalid engine. Fail to open sttp_load_engine : %s", error);
 105                 dlclose(handle);
 106                 return STT_FILE_ERROR_ENGINE_NOT_FOUND;
 107         }
 108
 109         dlsym(handle, "sttp_unload_engine");
 110         if ((error = dlerror()) != NULL) {
 111                 SLOG(LOG_WARN, TAG_STTFC, "[Engine Agent] Invalid engine. Fail to open sttp_unload_engine : %s", error);
 112                 dlclose(handle);
 113                 return STT_FILE_ERROR_ENGINE_NOT_FOUND;
 114         }
 115
 116         int (*get_engine_info)(sttpe_engine_info_cb callback, void* user_data);
 117
 118         get_engine_info = (int (*)(sttpe_engine_info_cb, void*))dlsym(handle, "sttp_get_engine_info");
 119         if ((error = dlerror()) != NULL || NULL == get_engine_info) {
 120                 SLOG(LOG_WARN, TAG_STTFC, "[Engine Agent WARNING] Invalid engine. Fail to open sttp_get_engine_info : %s", error);
 121                 dlclose(handle);
 122                 return STT_FILE_ERROR_ENGINE_NOT_FOUND;
 123         }
 124
 125         sttengine_info_s* temp;
 126         temp = (sttengine_info_s*)calloc(1, sizeof(sttengine_info_s));
 127         if (NULL == temp) {
 128                 SLOG(LOG_ERROR, TAG_STTFC, "[Engine Agent ERROR] Fail to allocate memory");
 129                 dlclose(handle);
 130                 return STT_FILE_ERROR_OUT_OF_MEMORY;
 131         }
 132
 133         /* get engine info */
 134         if (0 != get_engine_info(__stt_file_engine_info_cb, (void*)temp)) {
 135                 SLOG(LOG_ERROR, TAG_STTFC, "[Engine Agent ERROR] Fail to get engine info from engine");
 136                 dlclose(handle);
 137                 free(temp);
 138                 return STT_FILE_ERROR_ENGINE_NOT_FOUND;
 139         }
 140
 141         /* close engine */
 142         dlclose(handle);
 143
 144         temp->engine_id = g_engine_id_count;
 145         g_engine_id_count++;
 146
 147         temp->engine_path = g_strdup(filepath);
 148         temp->is_loaded = false;
 149
 150         SLOG(LOG_DEBUG, TAG_STTFC, "----- Valid Engine");
 151         SECURE_SLOG(LOG_DEBUG, TAG_STTFC, "Engine id : %d", temp->engine_id);
 152         SECURE_SLOG(LOG_DEBUG, TAG_STTFC, "Engine uuid : %s", temp->engine_uuid);
 153         SECURE_SLOG(LOG_DEBUG, TAG_STTFC, "Engine name : %s", temp->engine_name);
 154         SECURE_SLOG(LOG_DEBUG, TAG_STTFC, "Engine path : %s", temp->engine_path);
 155         SECURE_SLOG(LOG_DEBUG, TAG_STTFC, "Engine setting path : %s", temp->engine_setting_path);
 156         SECURE_SLOG(LOG_DEBUG, TAG_STTFC, "Use network : %s", temp->use_network ? "true" : "false");
 157         SLOG(LOG_DEBUG, TAG_STTFC, "-----");
 158         SLOG(LOG_DEBUG, TAG_STTFC, "  ");
 159
 160         *info = temp;
 161 #endif
 162
 163         return STT_FILE_ERROR_NONE;
 164 }
 165
 166 static bool __stt_file_is_engine(const char* filepath)
 167 {
 168         GSList *iter = NULL;
 169         sttengine_info_s *engine = NULL;
 170
 171         if (0 < g_slist_length(g_engine_list)) {
 172                 /* Get a first item */
 173                 iter = g_slist_nth(g_engine_list, 0);
 174
 175                 while (NULL != iter) {
 176                         /* Get handle data from list */
 177                         engine = iter->data;
 178
 179                         if (0 == strcmp(engine->engine_path, filepath)) {
 180                                 return true;
 181                         }
 182
 183                         iter = g_slist_next(iter);
 184                 }
 185         }
 186
 187         return false;
 188 }
 189
 190 void __stt_file_relseae_engine_info(void)
 191 {
 192         GSList *iter = NULL;
 193
 194         /* Release engine list */
 195         sttengine_info_s *engine = NULL;
 196
 197         if (0 < g_slist_length(g_engine_list)) {
 198                 /* Get a first item */
 199                 iter = g_slist_nth(g_engine_list, 0);
 200
 201                 while (NULL != iter) {
 202                         /* Get handle data from list */
 203                         engine = iter->data;
 204                         g_engine_list = g_slist_remove_link(g_engine_list, iter);
 205
 206                         /* Check engine unload */
 207                         if (NULL != engine) {
 208                                 if (engine->is_loaded) {
 209                                         SECURE_SLOG(LOG_DEBUG, TAG_STTFC, "[Engine Agent] Unload engine id(%d)", engine->engine_id);
 210
 211                                         if (0 != stt_engine_deinitialize())
 212                                                 SECURE_SLOG(LOG_WARN, TAG_STTFC, "[Engine Agent] Fail to deinitialize engine id(%d)", engine->engine_id);
 213
 214                                         if (0 != stt_engine_unload())
 215                                                 SECURE_SLOG(LOG_WARN, TAG_STTFC, "[Engine Agent] Fail to unload engine id(%d)", engine->engine_id);
 216
 217                                         engine->is_loaded = false;
 218                                 }
 219
 220                                 if (NULL != engine->engine_uuid)        free(engine->engine_uuid);
 221                                 if (NULL != engine->engine_path)        free(engine->engine_path);
 222                                 if (NULL != engine->engine_name)        free(engine->engine_name);
 223                                 if (NULL != engine->engine_setting_path)free(engine->engine_setting_path);
 224
 225                                 free(engine);
 226                         }
 227
 228                         iter = g_slist_nth(g_engine_list, 0);
 229                 }
 230         }
 231 }
 232
 233 static sttengine_info_s* __stt_file_get_engine_by_id(int engine_id)
 234 {
 235         GSList *iter = NULL;
 236         sttengine_info_s *data = NULL;
 237
 238         iter = g_slist_nth(g_engine_list, 0);
 239
 240         while (NULL != iter) {
 241
 242                 data = iter->data;
 243
 244                 if (data->engine_id == engine_id)
 245                         return data;
 246
 247                 iter = g_slist_next(iter);
 248         }
 249
 250         return NULL;
 251 }
 252
 253 int __stt_file_result_cb(stte_result_event_e event, const char* type, const char** data, int data_count,
 254                  const char* msg, void* time_info, void *user_data)
 255 {
 256
 257         SLOG(LOG_DEBUG, TAG_STTFC, "[STT FILE] Result event(%d) type(%s) msg(%s)", event, type, msg);
 258
 259         if (NULL != data) {
 260                 int i = 0;
 261                 for (i = 0; i < data_count; i++) {
 262                         if (NULL != data[i]) {
 263                                 SLOG(LOG_DEBUG, TAG_STTFC, "[STT FILE] [%d] %s", i, data[i]);
 264                         }
 265                 }
 266         }
 267
 268         stt_file_client_s* client = stt_file_client_get();
 269
 270         /* check handle */
 271         if (NULL == client) {
 272                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Fail to notify error : A handle is not valid");
 273                 return STT_FILE_ERROR_OPERATION_FAILED;
 274         }
 275
 276         if (NULL != time_info) {
 277                 client->time_info = time_info;
 278         }
 279
 280         if (NULL != client->recognition_result_cb) {
 281                 stt_file_client_use_callback(client);
 282                 client->recognition_result_cb(event, data, data_count, msg, client->recognition_result_user_data);
 283                 stt_file_client_not_use_callback(client);
 284                 SLOG(LOG_DEBUG, TAG_STTFC, "client recognition result callback called");
 285         } else {
 286                 SLOG(LOG_WARN, TAG_STTFC, "[WARNING] User recognition result callback is NULL");
 287         }
 288
 289         client->time_info = NULL;
 290
 291         if (STTE_RESULT_EVENT_FINAL_RESULT == event || STTE_RESULT_EVENT_ERROR == event) {
 292                 SLOG(LOG_DEBUG, TAG_STTFC, "[STT FILE] State change : 'Ready'");
 293
 294                 client->before_state = client->current_state;
 295                 client->current_state = STT_FILE_STATE_READY;
 296
 297                 if (NULL != client->state_changed_cb) {
 298                         stt_file_client_use_callback(client);
 299                         client->state_changed_cb(client->before_state, client->current_state, client->state_changed_user_data);
 300                         stt_file_client_not_use_callback(client);
 301                         SLOG(LOG_DEBUG, TAG_STTFC, "State changed callback is called");
 302                 } else {
 303                         SLOG(LOG_WARN, TAG_STTFC, "[WARNING] State changed callback is null");
 304                 }
 305         }
 306
 307         return STT_FILE_ERROR_NONE;
 308 }
 309
 310 void __stt_file_speech_status_cb(stte_speech_status_e status, void *user_data)
 311 {
 312         /* it seems to be no necessity yet */
 313         SLOG(LOG_WARN, TAG_STTFC, "[WARNING] This callback should NOT be called.");
 314         return;
 315 }
 316
 317 void __stt_file_error_cb(stte_error_e error, const char* msg)
 318 {
 319         /* it seems to be no necessity yet */
 320         SLOG(LOG_DEBUG, TAG_STTFC, "[STT FILE] Error callback is called");
 321         return;
 322 }
 323
 324 static int __stt_file_load_engine(sttengine_info_s* engine)
 325 {
 326         if (NULL == engine) {
 327                 SLOG(LOG_ERROR, TAG_STTFC, "[STT FILE ERROR] Input engine is NULL");
 328                 return STT_FILE_ERROR_INVALID_PARAMETER;
 329         }
 330
 331         if (0 != stt_engine_load(engine->engine_path, NULL)) {
 332                 SLOG(LOG_ERROR, TAG_STTFC, "[STT FILE ERROR] Fail to load engine(%s)", engine->engine_path);
 333                 return STT_FILE_ERROR_OPERATION_FAILED;
 334         }
 335
 336         int ret = stt_engine_initialize(true);
 337         if (0 != ret) {
 338                 SECURE_SLOG(LOG_ERROR, TAG_STTFC, "[Engine Agent ERROR] Fail to initialize engine : id(%d) path(%s)", engine->engine_id, engine->engine_path);
 339                 return STT_FILE_ERROR_OPERATION_FAILED;
 340         }
 341
 342         engine->is_loaded = true;
 343
 344         SECURE_SLOG(LOG_DEBUG, TAG_STTFC, "[STT FILE Success] Load engine id(%d) path(%s)", engine->engine_id, engine->engine_path);
 345
 346         return STT_FILE_ERROR_NONE;
 347 }
 348
 349 int stt_file_initialize(void)
 350 {
 351         SLOG(LOG_DEBUG, TAG_STTFC, "===== Initialize STT FILE");
 352
 353         stt_file_client_s* client = stt_file_client_get();
 354         if (NULL != client) {
 355                 SLOG(LOG_ERROR, TAG_STTFC, "[STT FILE ERROR] Already initialized");
 356                 return STT_FILE_ERROR_INVALID_STATE;
 357         }
 358
 359         /* Get file name from default engine directory */
 360         DIR *dp = NULL;
 361         int ret = -1;
 362         struct dirent entry;
 363         struct dirent *dirp = NULL;
 364         dp  = opendir(STT_DEFAULT_ENGINE);
 365         if (NULL != dp) {
 366                 do {
 367                         ret = readdir_r(dp, &entry, &dirp);
 368                         if (0 != ret) {
 369                                 SLOG(LOG_ERROR, TAG_STTFC, "[File ERROR] Fail to read directory");
 370                                 break;
 371                         }
 372
 373                         if (NULL != dirp) {
 374                                 sttengine_info_s* info = NULL;
 375                                 char* filepath;
 376                                 int filesize;
 377
 378                                 filesize = strlen(STT_DEFAULT_ENGINE) + strlen(dirp->d_name) + 5;
 379                                 filepath = (char*)calloc(filesize, sizeof(char));
 380
 381
 382                                 if (NULL != filepath) {
 383                                         snprintf(filepath, filesize, "%s/%s", STT_DEFAULT_ENGINE, dirp->d_name);
 384                                 } else {
 385                                         SLOG(LOG_ERROR, TAG_STTFC, "[Engine Agent ERROR] Memory not enough!!");
 386                                         continue;
 387                                 }
 388
 389                                 if (false == __stt_file_is_engine(filepath)) {
 390                                         /* get its and update engine list */
 391                                         if (0 == __stt_file_get_engine_info(filepath, &info)) {
 392                                                 /* add engine info to g_engine_list */
 393                                                 g_engine_list = g_slist_append(g_engine_list, info);
 394                                         }
 395                                 }
 396
 397                                 if (NULL != filepath)
 398                                         free(filepath);
 399                         }
 400                 } while (NULL != dirp);
 401
 402                 closedir(dp);
 403         } else {
 404                 SLOG(LOG_WARN, TAG_STTFC, "[Engine Agent WARNING] Fail to open default directory");
 405         }
 406
 407         if (0 >= g_slist_length(g_engine_list)) {
 408                 SLOG(LOG_WARN, TAG_STTFC, "[STT FILE WARNING] Not found engine");
 409                 return STT_FILE_ERROR_ENGINE_NOT_FOUND;
 410         }
 411
 412         ret = stt_file_client_new();
 413         if (0 != ret) {
 414                 SLOG(LOG_ERROR, TAG_STTFC, "[STT FILE ERROR] Fail to create client : %s", __stt_file_get_error_code(ret));
 415                 return STT_FILE_ERROR_OPERATION_FAILED;
 416         }
 417
 418         client = stt_file_client_get();
 419         if (NULL == client) {
 420                 SLOG(LOG_ERROR, TAG_STTFC, "[STT FILE ERROR] Not initialized");
 421                 return STT_FILE_ERROR_OPERATION_FAILED;
 422         }
 423
 424         ret = stt_config_mgr_initialize(getpid() + STT_FILE_CONFIG_HANDLE);
 425         if (0 != ret) {
 426                 SLOG(LOG_ERROR, TAG_STTFC, "[STT FILE ERROR] Fail to init config manager : %s", __stt_file_get_error_code(ret));
 427                 stt_file_client_destroy();
 428                 return STT_FILE_ERROR_OPERATION_FAILED;
 429         }
 430
 431         /* Get engine */
 432         char* engine_id = NULL;
 433         ret = stt_config_mgr_get_engine(&engine_id);
 434         if (0 != ret) {
 435                 SLOG(LOG_ERROR, TAG_STTFC, "[STT FILE ERROR] Fail to get engine id : %s", __stt_file_get_error_code(ret));
 436                 stt_file_client_destroy();
 437                 stt_config_mgr_finalize(getpid() + STT_FILE_CONFIG_HANDLE);
 438                 __stt_file_relseae_engine_info();
 439                 return STT_FILE_ERROR_OPERATION_FAILED;
 440         }
 441
 442         SLOG(LOG_DEBUG, TAG_STTFC, "[STT FILE] Get engine id : %s", engine_id);
 443
 444         bool is_found = false;
 445
 446         sttengine_info_s* engine = NULL;
 447         GSList *iter = NULL;
 448         /* load engine */
 449         if (0 < g_slist_length(g_engine_list)) {
 450                 /* Get a first item */
 451                 iter = g_slist_nth(g_engine_list, 0);
 452
 453                 while (NULL != iter) {
 454                         /* Get handle data from list */
 455                         engine = iter->data;
 456
 457                         if (0 == strcmp(engine->engine_uuid, engine_id)) {
 458                                 is_found = true;
 459                                 break;
 460                         }
 461
 462                         iter = g_slist_next(iter);
 463                 }
 464         }
 465
 466         if (NULL != engine_id) {
 467                 free(engine_id);
 468                 engine_id = NULL;
 469         }
 470
 471         if (false == is_found) {
 472                 engine = NULL;
 473                 SLOG(LOG_WARN, TAG_STTFC, "[STT FILE WARNING] Fail to find default engine");
 474                 iter = g_slist_nth(g_engine_list, 0);
 475                 if (NULL != iter)
 476                         engine = iter->data;
 477
 478                 if (NULL == engine) {
 479                         SLOG(LOG_ERROR, TAG_STTFC, "[Engine Agent ERROR] Fail to initialize engine");
 480                         stt_file_client_destroy();
 481                         stt_config_mgr_finalize(getpid() + STT_FILE_CONFIG_HANDLE);
 482                         __stt_file_relseae_engine_info();
 483                         return STT_FILE_ERROR_OPERATION_FAILED;
 484                 }
 485                 SLOG(LOG_WARN, TAG_STTFC, "[STT FILE WARNING] Set default engine (%s)", engine->engine_name);
 486         }
 487
 488         ret = __stt_file_load_engine(engine);
 489         if (0 != ret) {
 490                 SLOG(LOG_ERROR, TAG_STTFC, "[Engine Agent ERROR] Fail to initialize engine");
 491                 stt_file_client_destroy();
 492                 stt_config_mgr_finalize(getpid() + STT_FILE_CONFIG_HANDLE);
 493                 __stt_file_relseae_engine_info();
 494                 return STT_FILE_ERROR_OPERATION_FAILED;
 495         }
 496
 497         client->current_engine_id = engine->engine_id;
 498
 499         stt_network_initialize();
 500
 501         SECURE_SLOG(LOG_DEBUG, TAG_STTFC, "[STT FILE Success] Initialize : pid(%d)", getpid());
 502
 503         SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 504         SLOG(LOG_DEBUG, TAG_STTFC, " ");
 505
 506         return STT_FILE_ERROR_NONE;
 507 }
 508
 509 int stt_file_deinitialize(void)
 510 {
 511         SLOG(LOG_DEBUG, TAG_STTFC, "===== Deinitialize STT FILE");
 512
 513         stt_file_client_s* client = stt_file_client_get();
 514         if (NULL == client) {
 515                 SLOG(LOG_ERROR, TAG_STTFC, "[STT FILE ERROR] Not initialized");
 516                 return STT_FILE_ERROR_INVALID_STATE;
 517         }
 518
 519         /* check used callback */
 520         if (0 != stt_file_client_get_use_callback(client)) {
 521                 SLOG(LOG_ERROR, TAG_STTFC, "[STT FILE ERROR] Client should NOT deinitialize STT FILE in callback function");
 522                 return STT_FILE_ERROR_OPERATION_FAILED;
 523         }
 524
 525         stt_network_finalize();
 526
 527         stt_config_mgr_finalize(getpid() + STT_FILE_CONFIG_HANDLE);
 528
 529         /* check state */
 530         switch (client->current_state) {
 531         case STT_FILE_STATE_PROCESSING:
 532                 /* Cancel file recognition */
 533                 stt_engine_recognize_cancel_file();
 534
 535         case STT_FILE_STATE_READY:
 536                 /* Unload engine */
 537                 __stt_file_relseae_engine_info();
 538
 539                 /* Free resources */
 540                 stt_file_client_destroy();
 541                 break;
 542
 543         case STT_FILE_STATE_NONE:
 544                 SLOG(LOG_WARN, TAG_STTFC, "[STT FILE WARNING] NOT initialized");
 545                 return 0;
 546         default:
 547                 break;
 548         }
 549
 550         SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 551         SLOG(LOG_DEBUG, TAG_STTFC, " ");
 552
 553         return STT_FILE_ERROR_NONE;
 554 }
 555
 556 int stt_file_get_state(stt_file_state_e* state)
 557 {
 558         if (NULL == state) {
 559                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Input parameter is NULL");
 560                 return STT_FILE_ERROR_INVALID_PARAMETER;
 561         }
 562
 563         stt_file_client_s* client = stt_file_client_get();
 564
 565         if (NULL == client) {
 566                 SLOG(LOG_DEBUG, TAG_STTFC, "[STT FILE] Not initialized");
 567                 *state = STT_FILE_STATE_NONE;
 568                 return STT_FILE_ERROR_NONE;
 569         }
 570
 571         *state = client->current_state;
 572
 573         switch (*state) {
 574         case STT_FILE_STATE_NONE:       SLOG(LOG_DEBUG, TAG_STTFC, "Current state is 'NONE'");          break;
 575         case STT_FILE_STATE_READY:      SLOG(LOG_DEBUG, TAG_STTFC, "Current state is 'Ready'");         break;
 576         case STT_FILE_STATE_PROCESSING: SLOG(LOG_DEBUG, TAG_STTFC, "Current state is 'Processing'");    break;
 577         default:                        SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Invalid value");            break;
 578         }
 579
 580         return STT_FILE_ERROR_NONE;
 581 }
 582
 583 int stt_file_foreach_supported_engines(stt_file_supported_engine_cb callback, void* user_data)
 584 {
 585         SLOG(LOG_DEBUG, TAG_STTFC, "===== Foreach Supported engine");
 586
 587         if (NULL == callback) {
 588                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Input parameter is NULL");
 589                 SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 590                 SLOG(LOG_DEBUG, TAG_STTFC, " ");
 591                 return STT_FILE_ERROR_INVALID_PARAMETER;
 592         }
 593
 594         stt_file_client_s* client = stt_file_client_get();
 595
 596         /* check handle */
 597         if (NULL == client) {
 598                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] A handle is not available");
 599                 SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 600                 SLOG(LOG_DEBUG, TAG_STTFC, " ");
 601                 return STT_FILE_ERROR_INVALID_PARAMETER;
 602         }
 603
 604         if (client->current_state != STT_FILE_STATE_READY) {
 605                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Invalid State: Current state(%d) is not 'Ready'", client->current_state);
 606                 SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 607                 SLOG(LOG_DEBUG, TAG_STTFC, " ");
 608                 return STT_FILE_ERROR_INVALID_STATE;
 609         }
 610
 611         GSList *iter = NULL;
 612         sttengine_info_s *engine = NULL;
 613
 614         /* Get a first item */
 615         iter = g_slist_nth(g_engine_list, 0);
 616
 617         while (NULL != iter) {
 618                 /* Get handle data from list */
 619                 engine = iter->data;
 620
 621                 if (NULL != engine) {
 622                         if (false == callback(engine->engine_uuid, engine->engine_name, user_data)) {
 623                                 break;
 624                         }
 625                 }
 626                 iter = g_slist_next(iter);
 627         }
 628
 629         SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 630         SLOG(LOG_DEBUG, TAG_STTFC, " ");
 631
 632         return STT_FILE_ERROR_NONE;
 633 }
 634
 635 int stt_file_get_engine(char** engine_id)
 636 {
 637         SLOG(LOG_DEBUG, TAG_STTFC, "===== Get current engine");
 638
 639         if (NULL == engine_id) {
 640                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Input parameter is NULL");
 641                 SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 642                 SLOG(LOG_DEBUG, TAG_STTFC, " ");
 643                 return STT_FILE_ERROR_INVALID_PARAMETER;
 644         }
 645
 646         stt_file_client_s* client = stt_file_client_get();
 647
 648         /* check handle */
 649         if (NULL == client) {
 650                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] A handle is not available");
 651                 SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 652                 SLOG(LOG_DEBUG, TAG_STTFC, " ");
 653                 return STT_FILE_ERROR_INVALID_PARAMETER;
 654         }
 655
 656         if (client->current_state != STT_FILE_STATE_READY) {
 657                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Invalid State: Current state(%d) is not 'Ready'", client->current_state);
 658                 SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 659                 SLOG(LOG_DEBUG, TAG_STTFC, " ");
 660                 return STT_FILE_ERROR_INVALID_STATE;
 661         }
 662
 663         sttengine_info_s* engine = NULL;
 664         engine = __stt_file_get_engine_by_id(client->current_engine_id);
 665         if (NULL == engine) {
 666                 SECURE_SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Fail to get engine info(%d)", client->current_engine_id);
 667                 return STT_FILE_ERROR_OPERATION_FAILED;
 668         }
 669
 670         *engine_id = strdup(engine->engine_uuid);
 671
 672         SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 673         SLOG(LOG_DEBUG, TAG_STTFC, " ");
 674
 675         return STT_FILE_ERROR_NONE;
 676 }
 677
 678 int stt_file_set_engine(const char* engine_id)
 679 {
 680         SLOG(LOG_DEBUG, TAG_STTFC, "===== Set current engine");
 681
 682         if (NULL == engine_id) {
 683                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Input parameter is NULL");
 684                 SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 685                 SLOG(LOG_DEBUG, TAG_STTFC, " ");
 686                 return STT_FILE_ERROR_INVALID_PARAMETER;
 687         }
 688
 689         stt_file_client_s* client = stt_file_client_get();
 690
 691         /* check handle */
 692         if (NULL == client) {
 693                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] A handle is not available");
 694                 SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 695                 SLOG(LOG_DEBUG, TAG_STTFC, " ");
 696                 return STT_FILE_ERROR_INVALID_PARAMETER;
 697         }
 698
 699         /* check state */
 700         if (client->current_state != STT_FILE_STATE_READY) {
 701                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Invalid State: Current state(%d) is not 'Ready'", client->current_state);
 702                 SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 703                 SLOG(LOG_DEBUG, TAG_STTFC, " ");
 704                 return STT_FILE_ERROR_INVALID_STATE;
 705         }
 706
 707         GSList *iter = NULL;
 708         sttengine_info_s *engine = NULL;
 709
 710         int temp_old_engine = -1;
 711
 712         /* Get a first item */
 713         iter = g_slist_nth(g_engine_list, 0);
 714
 715         while (NULL != iter) {
 716                 /* Get handle data from list */
 717                 engine = iter->data;
 718
 719                 if (0 == strcmp(engine->engine_uuid, engine_id)) {
 720                         if (client->current_engine_id != engine->engine_id) {
 721                                 temp_old_engine = client->current_engine_id;
 722                         } else {
 723                                 SLOG(LOG_DEBUG, TAG_STTFC, "Already loaded engine : %s", engine_id);
 724                                 return 0;
 725                         }
 726
 727                         break;
 728                 }
 729
 730                 iter = g_slist_next(iter);
 731                 engine = NULL;
 732         }
 733
 734         if (NULL == engine) {
 735                 SLOG(LOG_ERROR, TAG_STTFC, "[Engine Agent ERROR] Engine id is NOT valid");
 736                 return STT_FILE_ERROR_INVALID_PARAMETER;
 737         }
 738
 739         int ret = __stt_file_load_engine(engine);
 740         if (0 != ret) {
 741                 SLOG(LOG_ERROR, TAG_STTFC, "[Engine Agent ERROR] Fail to initialize engine");
 742                 return STT_FILE_ERROR_OPERATION_FAILED;
 743         }
 744
 745         client->current_engine_id = engine->engine_id;
 746
 747         if (-1 != temp_old_engine) {
 748                 stt_engine_deinitialize();
 749                 stt_engine_unload();
 750         }
 751
 752         SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 753         SLOG(LOG_DEBUG, TAG_STTFC, " ");
 754
 755         return 0;
 756 }
 757
 758 bool __stt_config_supported_language_cb(const char* engine_id, const char* language, void* user_data)
 759 {
 760         stt_file_client_s* client = stt_file_client_get();
 761         if (NULL == client) {
 762                 SLOG(LOG_ERROR, TAG_STTFC, "[WARNING] A handle is not valid");
 763                 return false;
 764         }
 765
 766         /* call callback function */
 767         if (NULL != client->supported_lang_cb) {
 768                 return client->supported_lang_cb(language, client->supported_lang_user_data);
 769         } else {
 770                 SLOG(LOG_WARN, TAG_STTFC, "No registered callback function of supported languages");
 771         }
 772
 773         return false;
 774 }
 775
 776 int stt_file_foreach_supported_languages(stt_file_supported_language_cb callback, void* user_data)
 777 {
 778         SLOG(LOG_DEBUG, TAG_STTFC, "===== Foreach Supported Language");
 779
 780         if (NULL == callback) {
 781                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Input parameter is NULL");
 782                 SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 783                 SLOG(LOG_DEBUG, TAG_STTFC, " ");
 784                 return STT_FILE_ERROR_INVALID_PARAMETER;
 785         }
 786
 787         stt_file_client_s* client = stt_file_client_get();
 788
 789         /* check handle */
 790         if (NULL == client) {
 791                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] A handle is not available");
 792                 SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 793                 SLOG(LOG_DEBUG, TAG_STTFC, " ");
 794                 return STT_FILE_ERROR_INVALID_PARAMETER;
 795         }
 796
 797         sttengine_info_s* engine = NULL;
 798         engine = __stt_file_get_engine_by_id(client->current_engine_id);
 799         if (NULL == engine) {
 800                 SECURE_SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Fail to get engine info(%d)", client->current_engine_id);
 801                 return STT_FILE_ERROR_OPERATION_FAILED;
 802         }
 803
 804         client->supported_lang_cb = callback;
 805         client->supported_lang_user_data = user_data;
 806
 807         int ret = -1;
 808         ret = stt_config_mgr_get_language_list(engine->engine_uuid, __stt_config_supported_language_cb, NULL);
 809         if (0 != ret) {
 810                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Fail to get languages");
 811         }
 812
 813         client->supported_lang_cb = NULL;
 814         client->supported_lang_user_data = NULL;
 815
 816         SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 817         SLOG(LOG_DEBUG, TAG_STTFC, " ");
 818
 819         return STT_FILE_ERROR_NONE;
 820 }
 821
 822 int stt_file_start(const char* language, const char* type, const char* filepath,
 823                 stt_file_audio_type_e audio_type, int sample_rate)
 824 {
 825         SLOG(LOG_DEBUG, TAG_STTFC, "===== STT FILE START");
 826
 827         stt_file_client_s* client = stt_file_client_get();
 828
 829         /* check handle */
 830         if (NULL == client) {
 831                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] A handle is not available");
 832                 SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 833                 SLOG(LOG_DEBUG, TAG_STTFC, " ");
 834                 return STT_FILE_ERROR_INVALID_STATE;
 835         }
 836
 837         /* check state */
 838         if (client->current_state != STT_FILE_STATE_READY) {
 839                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Invalid State: Current state(%d) is not READY", client->current_state);
 840                 SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 841                 SLOG(LOG_DEBUG, TAG_STTFC, " ");
 842                 return STT_FILE_ERROR_INVALID_STATE;
 843         }
 844
 845         if (NULL == language || NULL == filepath) {
 846                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Input parameter is NULL");
 847                 SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 848                 SLOG(LOG_DEBUG, TAG_STTFC, " ");
 849                 return STT_FILE_ERROR_INVALID_PARAMETER;
 850         }
 851
 852         /* check if engine use network */
 853         sttengine_info_s* engine = NULL;
 854         engine = __stt_file_get_engine_by_id(client->current_engine_id);
 855         if (NULL == engine) {
 856                 SECURE_SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Fail to get engine info(%d)", client->current_engine_id);
 857                 return STT_FILE_ERROR_OPERATION_FAILED;
 858         }
 859
 860         if (true == engine->use_network) {
 861                 if (false == stt_network_is_connected()) {
 862                         SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Disconnect network. Current engine needs to network connection.");
 863                         return STT_FILE_ERROR_OUT_OF_NETWORK;
 864                 }
 865         }
 866
 867         SLOG(LOG_DEBUG, TAG_STTFC, "[START Info] Engine(%d) Lang(%s) Type(%s) Filepath(%s) Audio(%d) Sample rate(%d)",
 868                 client->current_engine_id, language, type, filepath, audio_type, sample_rate);
 869
 870         int ret = -1;
 871         ret = stt_engine_recognize_start_file(language, type, filepath, audio_type, sample_rate, NULL);
 872         if (0 != ret) {
 873                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Fail to start file recognition");
 874                 SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 875                 SLOG(LOG_DEBUG, TAG_STTFC, " ");
 876                 return STT_FILE_ERROR_OPERATION_FAILED;
 877         }
 878
 879         client->before_state = client->current_state;
 880         client->current_state = STT_FILE_STATE_PROCESSING;
 881
 882         if (NULL != client->state_changed_cb) {
 883                 stt_file_client_use_callback(client);
 884                 client->state_changed_cb(client->before_state, client->current_state, client->state_changed_user_data);
 885                 stt_file_client_not_use_callback(client);
 886                 SLOG(LOG_DEBUG, TAG_STTFC, "State changed callback is called");
 887         } else {
 888                 SLOG(LOG_WARN, TAG_STTFC, "[WARNING] State changed callback is null");
 889         }
 890
 891         SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 892         SLOG(LOG_DEBUG, TAG_STTFC, " ");
 893
 894         return STT_FILE_ERROR_NONE;
 895 }
 896
 897 int stt_file_cancel(void)
 898 {
 899         SLOG(LOG_DEBUG, TAG_STTFC, "===== STT FILE CANCEL");
 900
 901         stt_file_client_s* client = stt_file_client_get();
 902
 903         /* check handle */
 904         if (NULL == client) {
 905                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] A handle is not available");
 906                 SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 907                 SLOG(LOG_DEBUG, TAG_STTFC, " ");
 908                 return STT_FILE_ERROR_INVALID_PARAMETER;
 909         }
 910
 911         /* check state */
 912         if (STT_FILE_STATE_PROCESSING != client->current_state) {
 913                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Invalid state : Current state(%d) is NOT 'Processing'", client->current_state);
 914                 SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 915                 SLOG(LOG_DEBUG, TAG_STTFC, " ");
 916                 return STT_FILE_ERROR_INVALID_STATE;
 917         }
 918
 919         int ret = -1;
 920         ret = stt_engine_recognize_cancel_file();
 921         if (0 != ret) {
 922                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Fail to cancel file recognition");
 923                 SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 924                 SLOG(LOG_DEBUG, TAG_STTFC, " ");
 925                 return STT_FILE_ERROR_OPERATION_FAILED;
 926         }
 927
 928         client->before_state = client->current_state;
 929         client->current_state = STT_FILE_STATE_READY;
 930
 931         if (NULL != client->state_changed_cb) {
 932                 stt_file_client_use_callback(client);
 933                 client->state_changed_cb(client->before_state, client->current_state, client->state_changed_user_data);
 934                 stt_file_client_not_use_callback(client);
 935                 SLOG(LOG_DEBUG, TAG_STTFC, "State changed callback is called");
 936         } else {
 937                 SLOG(LOG_WARN, TAG_STTFC, "[WARNING] State changed callback is null");
 938         }
 939
 940         SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 941         SLOG(LOG_DEBUG, TAG_STTFC, " ");
 942
 943         return STT_FILE_ERROR_NONE;
 944 }
 945
 946 bool __stt_file_result_time_cb(int index, stte_result_time_event_e event, const char* text, long start_time, long end_time, void* user_data)
 947 {
 948         SLOG(LOG_DEBUG, TAG_STTFC, "(%d) event(%d) text(%s) start(%ld) end(%ld)",
 949                 index, event, text, start_time, end_time);
 950
 951         stt_file_client_s* client = stt_file_client_get();
 952
 953         /* check handle */
 954         if (NULL == client) {
 955                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Fail to notify error : A handle is not valid");
 956                 return EINA_FALSE;
 957         }
 958
 959         if (NULL != client->result_time_cb) {
 960                 client->result_time_cb(index, (stt_file_result_time_event_e)event,
 961                         text, start_time, end_time, client->result_time_user_data);
 962         } else {
 963                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Callback is NULL");
 964                 return false;
 965         }
 966
 967         return true;
 968 }
 969
 970 int stt_file_foreach_detailed_result(stt_file_result_time_cb callback, void* user_data)
 971 {
 972         SLOG(LOG_DEBUG, TAG_STTFC, "===== STT FILE FOREACH DETAILED RESULT");
 973
 974         if (NULL == callback) {
 975                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Input parameter is NULL");
 976                 return STT_FILE_ERROR_INVALID_PARAMETER;
 977         }
 978
 979         stt_file_client_s* client = stt_file_client_get();
 980
 981         /* check handle */
 982         if (NULL == client) {
 983                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Fail : A handle is not valid");
 984                 return STT_FILE_ERROR_INVALID_PARAMETER;
 985         }
 986
 987         client->result_time_cb = callback;
 988         client->result_time_user_data = user_data;
 989
 990         stt_engine_foreach_result_time(client->time_info, __stt_file_result_time_cb, NULL);
 991
 992         client->result_time_cb = NULL;
 993         client->result_time_user_data = NULL;
 994
 995         SLOG(LOG_DEBUG, TAG_STTFC, "=====");
 996         SLOG(LOG_DEBUG, TAG_STTFC, " ");
 997
 998         return STT_FILE_ERROR_NONE;
 999 }
1000
1001 int stt_file_set_recognition_result_cb(stt_file_recognition_result_cb callback, void* user_data)
1002 {
1003         if (NULL == callback)
1004                 return STT_FILE_ERROR_INVALID_PARAMETER;
1005
1006         stt_file_client_s* client = stt_file_client_get();
1007
1008         /* check handle */
1009         if (NULL == client) {
1010                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] A handle is not available");
1011                 return STT_FILE_ERROR_INVALID_PARAMETER;
1012         }
1013
1014         if (STT_FILE_STATE_READY != client->current_state) {
1015                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Current state(%d) is not 'ready'", client->current_state);
1016                 return STT_FILE_ERROR_INVALID_STATE;
1017         }
1018
1019         int ret = stt_engine_set_recognition_result_cb(__stt_file_result_cb, NULL);
1020         if (0 != ret) {
1021                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Fail to set recognition result cb");
1022         }
1023
1024         client->recognition_result_cb = callback;
1025         client->recognition_result_user_data = user_data;
1026
1027         return ret;
1028 }
1029
1030 int stt_file_unset_recognition_result_cb(void)
1031 {
1032         stt_file_client_s* client = stt_file_client_get();
1033
1034         /* check handle */
1035         if (NULL == client) {
1036                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] A handle is not available");
1037                 return STT_FILE_ERROR_INVALID_PARAMETER;
1038         }
1039
1040         if (STT_FILE_STATE_READY != client->current_state) {
1041                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Current state(%d) is not 'ready'", client->current_state);
1042                 return STT_FILE_ERROR_INVALID_STATE;
1043         }
1044
1045         int ret = stt_engine_set_recognition_result_cb(NULL, NULL);
1046         if (0 != ret) {
1047                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Fail to set recognition result cb");
1048         }
1049
1050         client->recognition_result_cb = NULL;
1051         client->recognition_result_user_data = NULL;
1052
1053         return ret;
1054 }
1055
1056 int stt_file_set_state_changed_cb(stt_file_state_changed_cb callback, void* user_data)
1057 {
1058         if (NULL == callback)
1059                 return STT_FILE_ERROR_INVALID_PARAMETER;
1060
1061         stt_file_client_s* client = stt_file_client_get();
1062
1063         /* check handle */
1064         if (NULL == client) {
1065                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] A handle is not available");
1066                 return STT_FILE_ERROR_INVALID_PARAMETER;
1067         }
1068
1069         if (STT_FILE_STATE_READY != client->current_state) {
1070                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Current state(%d) is not 'ready'", client->current_state);
1071                 return STT_FILE_ERROR_INVALID_STATE;
1072         }
1073
1074         client->state_changed_cb = callback;
1075         client->state_changed_user_data = user_data;
1076
1077         return 0;
1078 }
1079
1080 int stt_file_unset_state_changed_cb(void)
1081 {
1082         stt_file_client_s* client = stt_file_client_get();
1083
1084         /* check handle */
1085         if (NULL == client) {
1086                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] A handle is not available");
1087                 return STT_FILE_ERROR_INVALID_PARAMETER;
1088         }
1089
1090         if (STT_FILE_STATE_READY != client->current_state) {
1091                 SLOG(LOG_ERROR, TAG_STTFC, "[ERROR] Current state(%d) is not 'ready'", client->current_state);
1092                 return STT_FILE_ERROR_INVALID_STATE;
1093         }
1094
1095         client->state_changed_cb = NULL;
1096         client->state_changed_user_data = NULL;
1097
1098         return 0;
1099 }