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