Fix restore logic
[platform/core/uifw/stt.git] / client / stt_dbus.c
index e6a77ec..f6ddbf0 100644 (file)
@@ -1,5 +1,5 @@
 /*
-*  Copyright (c) 2011-2014 Samsung Electronics Co., Ltd All Rights Reserved
+*  Copyright (c) 2011-2016 Samsung Electronics Co., Ltd All Rights Reserved
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 
 #include "stt_client.h"
 
+#include <vconf/vconf.h>
+#include <buxton2.h>
+
 static int g_waiting_time = 3000;
 static int g_waiting_short_time = 500;
 
+static char* g_server_service_name = NULL;
+static char* g_server_service_object = NULL;
+static char* g_server_service_interface = NULL;
+
 static Ecore_Fd_Handler* g_fd_handler = NULL;
 
 static DBusConnection* g_conn_sender = NULL;
 static DBusConnection* g_conn_listener = NULL;
 
+void __stt_dbus_service_free();
 
 extern int __stt_cb_error(int uid, int reason, char* err_msg);
 
@@ -35,6 +43,320 @@ extern int __stt_cb_set_state(int uid, int state);
 
 extern int __stt_cb_set_volume(int uid, float volume);
 
+extern int __stt_cb_speech_status(int uid, int status);
+
+char* __stt_get_service_name(char* engine_id)
+{
+       char* service_name = NULL;
+       const char* engine_default = NULL;
+
+       struct buxton_client * bux_cli;
+       struct buxton_layer * bux_layer;
+       struct buxton_value * bux_val;
+
+       int ret = buxton_open(&bux_cli, NULL, NULL);
+       if (0 != ret) {
+               SLOG(LOG_ERROR, TAG_STTC, "[DBUS-BUXTON2] Fail to open buxton client, ret(%d)", ret);
+               return NULL;
+       }
+       SLOG(LOG_DEBUG, TAG_STTC, "[DBUS-BUXTON2] buxton_open: %d", ret);
+       bux_layer = buxton_create_layer("system");
+       if (NULL == bux_layer) {
+               SLOG(LOG_ERROR, TAG_STTC, "[DBUS-BUXTON2] buxton_create_layer FAIL");
+               buxton_close(bux_cli);
+               bux_cli = NULL;
+               return NULL;
+       }
+
+       bux_val = buxton_value_create_string("stt-engine-default");
+       if (NULL == bux_val) {
+               SLOG(LOG_ERROR, TAG_STTC, "[DBUS-BUXTON2] buxton_value_create_string FAIL");
+               buxton_free_layer(bux_layer);
+               buxton_close(bux_cli);
+               bux_layer = NULL;
+               bux_cli = NULL;
+               return NULL;
+       }
+
+       ret = buxton_get_value_sync(bux_cli, bux_layer, STT_ENGINE_DB_DEFAULT, &bux_val);
+       if (0 != ret) {
+               SLOG(LOG_ERROR, TAG_STTC, "[DBUS-BUXTON2] Fail to get value sync, ret(%d)", ret);
+               buxton_value_free(bux_val);
+               buxton_free_layer(bux_layer);
+               buxton_close(bux_cli);
+
+               bux_cli = NULL;
+               bux_layer = NULL;
+               bux_val = NULL;
+               return NULL;
+       }
+       ret = buxton_value_get_string(bux_val, &engine_default);
+       if (0 != ret) {
+               SLOG(LOG_ERROR, TAG_STTC, "[DBUS-BUXTON2] Fail to get value string, ret(%d)", ret);
+               buxton_value_free(bux_val);
+               buxton_free_layer(bux_layer);
+               buxton_close(bux_cli);
+
+               bux_cli = NULL;
+               bux_layer = NULL;
+               bux_val = NULL;
+               return NULL;
+       }
+       SLOG(LOG_DEBUG, TAG_STTC, "[DBUS-BUXTON2] buxton_value_get_string: engine_default: %s", engine_default);
+
+
+       if (NULL == engine_id || NULL == engine_default || 0 == strncmp(engine_id, engine_default, strlen(engine_id))) {
+               service_name = (char*)calloc(strlen(STT_SERVER_SERVICE_NAME) + 1, sizeof(char));
+               if (NULL == service_name) {
+                       SLOG(LOG_ERROR, TAG_STTC, "[ERROR] Memory allocation Failed!!");
+                       buxton_value_free(bux_val);
+                       buxton_free_layer(bux_layer);
+                       buxton_close(bux_cli);
+
+                       bux_cli = NULL;
+                       bux_layer = NULL;
+                       bux_val = NULL;
+                       return NULL;
+               }
+               snprintf(service_name, strlen(STT_SERVER_SERVICE_NAME) + 1, "%s", STT_SERVER_SERVICE_NAME);
+       } else {
+               service_name = (char*)calloc(strlen(STT_SERVER_SERVICE_NAME) + strlen(engine_id) - 8, sizeof(char));
+               if (NULL == service_name) {
+                       SLOG(LOG_ERROR, TAG_STTC, "[ERROR] Memory allocation Failed!!");
+                       buxton_value_free(bux_val);
+                       buxton_free_layer(bux_layer);
+                       buxton_close(bux_cli);
+
+                       bux_cli = NULL;
+                       bux_layer = NULL;
+                       bux_val = NULL;
+                       return NULL;
+               }
+               snprintf(service_name, strlen(STT_SERVER_SERVICE_NAME) + strlen(engine_id) - 8, "%s%s%s", STT_SERVER_SERVICE_NAME, ".", (engine_id + 10));
+       }
+
+       buxton_value_free(bux_val);
+       buxton_free_layer(bux_layer);
+       buxton_close(bux_cli);
+
+       bux_cli = NULL;
+       bux_layer = NULL;
+       bux_val = NULL;
+
+       SLOG(LOG_DEBUG, TAG_STTC, "[get_service_name] FINISH!! service name: %s", service_name);
+
+       return service_name;
+}
+
+char* __stt_get_service_object(char* engine_id)
+{
+       char* service_object = NULL;
+       const char* engine_default = NULL;
+
+       struct buxton_client * bux_cli;
+       struct buxton_layer * bux_layer;
+       struct buxton_value * bux_val;
+
+       int ret = buxton_open(&bux_cli, NULL, NULL);
+       if (0 != ret) {
+               SLOG(LOG_ERROR, TAG_STTC, "[DBUS-BUXTON2] Fail to open buxton client, ret(%d)", ret);
+               return NULL;
+       }
+       bux_layer = buxton_create_layer("system");
+       if (NULL == bux_layer) {
+               SLOG(LOG_DEBUG, TAG_STTC, "[DBUS-BUXTON2] buxton_create_layer FAIL");
+               buxton_close(bux_cli);
+               bux_cli = NULL;
+               return NULL;
+       }
+
+       bux_val = buxton_value_create_string("stt-engine-default");
+       if (NULL == bux_val) {
+               SLOG(LOG_ERROR, TAG_STTC, "[DBUS-BUXTON2] buxton_value_create_string FAIL");
+               buxton_free_layer(bux_layer);
+               buxton_close(bux_cli);
+               bux_layer = NULL;
+               bux_cli = NULL;
+               return NULL;
+       }
+
+       ret = buxton_get_value_sync(bux_cli, bux_layer, STT_ENGINE_DB_DEFAULT, &bux_val);
+       if (0 != ret) {
+               SLOG(LOG_ERROR, TAG_STTC, "[DBUS-BUXTON2] Fail to get value sync, ret(%d)", ret);
+               buxton_value_free(bux_val);
+               buxton_free_layer(bux_layer);
+               buxton_close(bux_cli);
+
+               bux_cli = NULL;
+               bux_layer = NULL;
+               bux_val = NULL;
+               return NULL;
+       }
+       ret = buxton_value_get_string(bux_val, &engine_default);
+       if (0 != ret) {
+               SLOG(LOG_ERROR, TAG_STTC, "[DBUS-BUXTON2] Fail to get string, ret(%d)", ret);
+               buxton_value_free(bux_val);
+               buxton_free_layer(bux_layer);
+               buxton_close(bux_cli);
+
+               bux_cli = NULL;
+               bux_layer = NULL;
+               bux_val = NULL;
+               return NULL;
+       }
+       SLOG(LOG_DEBUG, TAG_STTC, "[DBUS-BUXTON2] buxton_value_get_string: engine_default: %s", engine_default);
+
+       if (NULL == engine_id || NULL == engine_default || 0 == strncmp(engine_id, engine_default, strlen(engine_id))) {
+               service_object = (char*)calloc(strlen(STT_SERVER_SERVICE_OBJECT_PATH) + 1, sizeof(char));
+               if (NULL == service_object) {
+                       SLOG(LOG_ERROR, TAG_STTC, "[ERROR] Memory allocation Failed!!");
+                       buxton_value_free(bux_val);
+                       buxton_free_layer(bux_layer);
+                       buxton_close(bux_cli);
+
+                       bux_cli = NULL;
+                       bux_layer = NULL;
+                       bux_val = NULL;
+                       return NULL;
+               }
+               snprintf(service_object, strlen(STT_SERVER_SERVICE_OBJECT_PATH) + 1, "%s", STT_SERVER_SERVICE_OBJECT_PATH);
+       } else {
+               service_object = (char*)calloc(strlen(STT_SERVER_SERVICE_OBJECT_PATH) + strlen(engine_id) - 8, sizeof(char));
+               if (NULL == service_object) {
+                       SLOG(LOG_ERROR, TAG_STTC, "[ERROR] Memory allocation Failed!!");
+                       buxton_value_free(bux_val);
+                       buxton_free_layer(bux_layer);
+                       buxton_close(bux_cli);
+
+                       bux_cli = NULL;
+                       bux_layer = NULL;
+                       bux_val = NULL;
+                       return NULL;
+               }
+               snprintf(service_object, strlen(STT_SERVER_SERVICE_OBJECT_PATH) + strlen(engine_id) - 8, "%s%s%s", STT_SERVER_SERVICE_OBJECT_PATH, "/", (engine_id + 10));
+       }
+
+       buxton_value_free(bux_val);
+       buxton_free_layer(bux_layer);
+       buxton_close(bux_cli);
+
+       bux_cli = NULL;
+       bux_layer = NULL;
+       bux_val = NULL;
+
+       SLOG(LOG_DEBUG, TAG_STTC, "[get_service_object] FINISH!! service object: %s", service_object);
+
+       return service_object;
+}
+
+char* __stt_get_service_interface(char* engine_id)
+{
+       char* service_interface = NULL;
+       const char* engine_default = NULL;
+
+       struct buxton_client * bux_cli;
+       struct buxton_layer * bux_layer;
+       struct buxton_value * bux_val;
+
+       int ret = buxton_open(&bux_cli, NULL, NULL);
+       if (0 != ret) {
+               SLOG(LOG_ERROR, TAG_STTC, "[DBUS-BUXTON2] Fail to open buxton client, ret(%d)", ret);
+               return NULL;
+       }
+       bux_layer = buxton_create_layer("system");
+       if (NULL == bux_layer) {
+               SLOG(LOG_ERROR, TAG_STTC, "[DBUS-BUXTON2] buxton_create_layer FAIL");
+               buxton_close(bux_cli);
+               bux_cli = NULL;
+               return NULL;
+       }
+
+       bux_val = buxton_value_create_string("stt-engine-default");
+       if (NULL == bux_val) {
+               SLOG(LOG_ERROR, TAG_STTC, "[DBUS-BUXTON2] buxton_value_create_string FAIL");
+               buxton_free_layer(bux_layer);
+               buxton_close(bux_cli);
+               bux_layer = NULL;
+               bux_cli = NULL;
+               return NULL;
+       }
+
+       ret = buxton_get_value_sync(bux_cli, bux_layer, STT_ENGINE_DB_DEFAULT, &bux_val);
+       if (0 != ret) {
+               SLOG(LOG_ERROR, TAG_STTC, "[DBUS-BUXTON2] Fail to get value sync, ret(%d)", ret);
+               buxton_value_free(bux_val);
+               buxton_free_layer(bux_layer);
+               buxton_close(bux_cli);
+
+               bux_cli = NULL;
+               bux_layer = NULL;
+               bux_val = NULL;
+               return NULL;
+       }
+       ret = buxton_value_get_string(bux_val, &engine_default);
+       if (0 != ret) {
+               SLOG(LOG_ERROR, TAG_STTC, "[DBUS-BUXTON2] Fail to get string, ret(%d)", ret);
+               buxton_value_free(bux_val);
+               buxton_free_layer(bux_layer);
+               buxton_close(bux_cli);
+
+               bux_cli = NULL;
+               bux_layer = NULL;
+               bux_val = NULL;
+               return NULL;
+       }
+       SLOG(LOG_DEBUG, TAG_STTC, "[DBUS-BUXTON2] buxton_value_get_string: engine_default: %s", engine_default);
+
+       if (NULL == engine_id || NULL == engine_default || 0 == strncmp(engine_id, engine_default, strlen(engine_id))) {
+               service_interface = (char*)calloc(strlen(STT_SERVER_SERVICE_INTERFACE) + 1, sizeof(char));
+               if (NULL == service_interface) {
+                       SLOG(LOG_ERROR, TAG_STTC, "[ERROR] Memory allocation Failed!!");
+                       buxton_value_free(bux_val);
+                       buxton_free_layer(bux_layer);
+                       buxton_close(bux_cli);
+
+                       bux_cli = NULL;
+                       bux_layer = NULL;
+                       bux_val = NULL;
+                       return NULL;
+               }
+               snprintf(service_interface, strlen(STT_SERVER_SERVICE_INTERFACE) + 1, "%s", STT_SERVER_SERVICE_INTERFACE);
+       } else {
+               service_interface = (char*)calloc(strlen(STT_SERVER_SERVICE_INTERFACE) + strlen(engine_id) - 8, sizeof(char));
+               if (NULL == service_interface) {
+                       SLOG(LOG_ERROR, TAG_STTC, "[ERROR] Memory allocation Failed!!");
+                       buxton_value_free(bux_val);
+                       buxton_free_layer(bux_layer);
+                       buxton_close(bux_cli);
+
+                       bux_cli = NULL;
+                       bux_layer = NULL;
+                       bux_val = NULL;
+                       return NULL;
+               }
+               snprintf(service_interface, strlen(STT_SERVER_SERVICE_INTERFACE) + strlen(engine_id) - 8, "%s%s%s", STT_SERVER_SERVICE_INTERFACE, ".", (engine_id + 10));
+       }
+
+       char* ret_char = strchr(service_interface, '-');
+       while (NULL != ret_char) {
+               ret_char[0] = '_';
+               ret_char = strchr(service_interface, '-');
+       }
+
+       buxton_value_free(bux_val);
+       buxton_free_layer(bux_layer);
+       ret = buxton_close(bux_cli);
+
+       bux_cli = NULL;
+       bux_layer = NULL;
+       bux_val = NULL;
+
+       SLOG(LOG_DEBUG, TAG_STTC, "[get_service_interface] FINISH!! service interface: %s", service_interface);
+
+       return service_interface;
+}
+
+
 static Eina_Bool listener_event_callback(void* data, Ecore_Fd_Handler *fd_handler)
 {
        if (NULL == g_conn_listener)    return ECORE_CALLBACK_RENEW;
@@ -150,7 +472,7 @@ static Eina_Bool listener_event_callback(void* data, Ecore_Fd_Handler *fd_handle
                                dbus_error_free(&err);
                        }
 
-                       SLOG(LOG_DEBUG, TAG_STTC, "<<<< stt set volume : uid(%d), volume(%f)", uid, volume); 
+                       SLOG(LOG_DEBUG, TAG_STTC, "<<<< stt set volume : uid(%d), volume(%f)", uid, volume);
                        __stt_cb_set_volume(uid, volume);
 
                        /* SLOG(LOG_DEBUG, TAG_STTC, "====="); */
@@ -267,6 +589,52 @@ static Eina_Bool listener_event_callback(void* data, Ecore_Fd_Handler *fd_handle
                        SLOG(LOG_DEBUG, TAG_STTC, " ");
                } /* STTD_METHOD_ERROR */
 
+               else if (dbus_message_is_signal(msg, if_name, STTD_METHOD_SPEECH_STATUS)) {
+                       SLOG(LOG_DEBUG, TAG_STTC, "===== Speech status");
+                       int uid = 0;
+                       int status = -1;
+
+                       dbus_message_get_args(msg, &err,
+                               DBUS_TYPE_INT32, &uid,
+                               DBUS_TYPE_INT32, &status,
+                               DBUS_TYPE_INVALID);
+
+                       if (dbus_error_is_set(&err)) {
+                               SLOG(LOG_ERROR, TAG_STTC, "[ERROR] Get arguments error (%s)", err.message);
+                               dbus_error_free(&err);
+                       }
+
+                       if (uid > 0 && status >= 0) {
+                               SLOG(LOG_DEBUG, TAG_STTC, "<<<< stt speech status : uid(%d), status(%d)", uid, status);
+                               __stt_cb_speech_status(uid, status);
+                       } else {
+                               SLOG(LOG_ERROR, TAG_STTC, "<<<< stt set status : invalid uid or status");
+                       }
+
+                       SLOG(LOG_DEBUG, TAG_STTC, "=====");
+                       SLOG(LOG_DEBUG, TAG_STTC, " ");
+               } /* STTD_METHOD_SPEECH_STATUS */
+
+               else if (dbus_message_is_signal(msg, "org.freedesktop.DBus", "NameOwnerChanged")) {
+                       SLOG(LOG_DEBUG, TAG_STTC, "===== Owner Changed");
+                       DBusError err;
+                       dbus_error_init(&err);
+
+                       /* remove a rule for daemon error */
+                       char rule_err[256] = {0, };
+                       snprintf(rule_err, 256, "sender='org.freedesktop.DBus',path='/org/freedesktop/DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',type='signal',arg0='%s'", g_server_service_interface);
+                       dbus_bus_remove_match(g_conn_listener, rule_err, &err);
+                       dbus_connection_flush(g_conn_listener);
+                       if (dbus_error_is_set(&err)) {
+                               SLOG(LOG_ERROR, TAG_STTC, "Match Error (%s)", err.message);
+                               dbus_error_free(&err);
+                       }
+
+                       __stt_cb_error(-1, STT_ERROR_SERVICE_RESET, "Daemon Reset");
+                       SLOG(LOG_DEBUG, TAG_STTC, "=====");
+                       SLOG(LOG_DEBUG, TAG_STTC, " ");
+               } /* NameOwnerChanged */
+
                else {
                        SLOG(LOG_DEBUG, TAG_STTC, "Message is NOT valid");
                        dbus_message_unref(msg);
@@ -293,10 +661,12 @@ int stt_dbus_open_connection()
        dbus_error_init(&err);
 
        /* connect to the DBUS system bus, and check for errors */
-       g_conn_sender = dbus_bus_get_private(DBUS_BUS_SESSION, &err);
-       if (dbus_error_is_set(&err)) {
-               SLOG(LOG_ERROR, TAG_STTC, "[ERROR] Dbus Connection Error (%s)", err.message);
-               dbus_error_free(&err);
+       if (NULL == g_conn_sender) {
+               g_conn_sender = dbus_bus_get_private(DBUS_BUS_SESSION, &err);
+               if (dbus_error_is_set(&err)) {
+                       SLOG(LOG_ERROR, TAG_STTC, "[ERROR] Dbus Connection Error (%s)", err.message);
+                       dbus_error_free(&err);
+               }
        }
 
        if (NULL == g_conn_sender) {
@@ -307,11 +677,12 @@ int stt_dbus_open_connection()
        dbus_connection_set_exit_on_disconnect(g_conn_sender, false);
 
        /* connect to the DBUS system bus, and check for errors */
-       g_conn_listener = dbus_bus_get_private(DBUS_BUS_SESSION, &err);
-
-       if (dbus_error_is_set(&err)) { 
-               SLOG(LOG_ERROR, TAG_STTC, "Dbus Connection Error (%s)", err.message); 
-               dbus_error_free(&err);
+       if (NULL == g_conn_listener) {
+               g_conn_listener = dbus_bus_get_private(DBUS_BUS_SESSION, &err);
+               if (dbus_error_is_set(&err)) {
+                       SLOG(LOG_ERROR, TAG_STTC, "Dbus Connection Error (%s)", err.message);
+                       dbus_error_free(&err);
+               }
        }
 
        if (NULL == g_conn_listener) {
@@ -331,8 +702,8 @@ int stt_dbus_open_connection()
        dbus_bus_request_name(g_conn_listener, service_name, DBUS_NAME_FLAG_REPLACE_EXISTING , &err);
 
        if (dbus_error_is_set(&err)) {
-               SLOG(LOG_ERROR, TAG_STTC, "Name Error (%s)", err.message); 
-               dbus_error_free(&err); 
+               SLOG(LOG_ERROR, TAG_STTC, "Name Error (%s)", err.message);
+               dbus_error_free(&err);
        }
 
        char rule[128] = {0, };
@@ -390,9 +761,14 @@ int stt_dbus_close_connection()
        dbus_connection_close(g_conn_sender);
        dbus_connection_close(g_conn_listener);
 
+       dbus_connection_unref(g_conn_sender);
+       dbus_connection_unref(g_conn_listener);
+
        g_conn_sender = NULL;
        g_conn_listener = NULL;
 
+       __stt_dbus_service_free();
+
        return 0;
 }
 
@@ -417,28 +793,108 @@ int stt_dbus_reconnect()
        return 0;
 }
 
-int stt_dbus_request_hello()
+void __stt_dbus_service_free()
 {
-       DBusMessage* msg;
-
-       msg = dbus_message_new_method_call(
-               STT_SERVER_SERVICE_NAME, 
-               STT_SERVER_SERVICE_OBJECT_PATH, 
-               STT_SERVER_SERVICE_INTERFACE, 
-               STT_METHOD_HELLO);
-
-       if (NULL == msg) {
-               SLOG(LOG_ERROR, TAG_STTC, ">>>> Request stt hello : Fail to make message");
-               return STT_ERROR_OPERATION_FAILED;
+       if (NULL != g_server_service_name) {
+               free(g_server_service_name);
+               g_server_service_name = NULL;
+       }
+       if (NULL != g_server_service_object) {
+               free(g_server_service_object);
+               g_server_service_object = NULL;
        }
+       if (NULL != g_server_service_interface) {
+               free(g_server_service_interface);
+               g_server_service_interface = NULL;
+       }
+}
+
+int stt_dbus_request_hello(int uid)
+{
+       stt_client_s* client = stt_client_get_by_uid(uid);
 
+       /* Check whether there is any dbus whose name has owner or not */
+       dbus_bool_t is_exist = FALSE;
        DBusError err;
        dbus_error_init(&err);
 
+       DBusMessage* msg = NULL;
        DBusMessage* result_msg = NULL;
        int result = 0;
 
        if (g_conn_sender) {
+               if (NULL != client) {
+                       __stt_dbus_service_free();
+
+                       if (NULL == client->current_engine_id) {
+                               /* Default engine */
+                               g_server_service_name = strdup(STT_SERVER_SERVICE_NAME);
+                               if (NULL == g_server_service_name) {
+                                       SLOG(LOG_ERROR, TAG_STTC, "[ERROR] Fail to allocate memory");
+                                       return STT_ERROR_OUT_OF_MEMORY;
+                               }
+                               g_server_service_object = strdup(STT_SERVER_SERVICE_OBJECT_PATH);
+                               if (NULL == g_server_service_name) {
+                                       SLOG(LOG_ERROR, TAG_STTC, "[ERROR] Fail to allocate memory");
+                                       return STT_ERROR_OUT_OF_MEMORY;
+                               }
+                               g_server_service_interface = strdup(STT_SERVER_SERVICE_INTERFACE);
+                               if (NULL == g_server_service_name) {
+                                       SLOG(LOG_ERROR, TAG_STTC, "[ERROR] Fail to allocate memory");
+                                       return STT_ERROR_OUT_OF_MEMORY;
+                               }
+
+                               msg = dbus_message_new_method_call(
+                                       STT_SERVER_SERVICE_NAME,
+                                       STT_SERVER_SERVICE_OBJECT_PATH,
+                                       STT_SERVER_SERVICE_INTERFACE,
+                                       STT_METHOD_HELLO);
+                       } else {
+                               /* Get service name, object, interface */
+                               SLOG(LOG_DEBUG, TAG_STTC, "[DBUS] current_engine_id: %s", client->current_engine_id);
+
+                               g_server_service_name = __stt_get_service_name(client->current_engine_id);
+                               g_server_service_object = __stt_get_service_object(client->current_engine_id);
+                               g_server_service_interface = __stt_get_service_interface(client->current_engine_id);
+
+                               if (NULL == g_server_service_name || NULL == g_server_service_object || NULL == g_server_service_interface) {
+                                       SLOG(LOG_ERROR, TAG_STTC, "[ERROR] dbus service info invalid");
+                                       return STT_ERROR_OPERATION_FAILED;
+                               }
+
+                               SLOG(LOG_DEBUG, TAG_STTC, "[DBUS] service name: %s, object path: %s, interface: %s", g_server_service_name, g_server_service_object, g_server_service_interface);
+
+                               /* Custom engine */
+                               is_exist = dbus_bus_name_has_owner(g_conn_sender, g_server_service_name, &err);
+                               SLOG(LOG_DEBUG, TAG_STTC, "[DBUS] is there dbus name has owner??: %s (g_server_service_name: %s)", (is_exist == TRUE) ? "True" : "False", g_server_service_name);
+
+                               if (TRUE == is_exist) {
+                                       SLOG(LOG_DEBUG, TAG_STTC, "[DBUS] dbus: is_exist: True");
+                                       msg = dbus_message_new_method_call(
+                                               g_server_service_name,
+                                               g_server_service_object,
+                                               g_server_service_interface,
+                                               STT_METHOD_HELLO);
+                               } else {
+                                       SLOG(LOG_DEBUG, TAG_STTC, "[DBUS] dbus: is_exist: False");
+                                       msg = dbus_message_new_method_call(
+                                               STT_SERVER_CUSTOM_SERVICE_NAME, 
+                                               STT_SERVER_CUSTOM_SERVICE_OBJECT_PATH, 
+                                               STT_SERVER_CUSTOM_SERVICE_INTERFACE, 
+                                               STT_METHOD_HELLO);
+                               }
+                       }
+               }
+       }
+
+       if (NULL == msg) {
+//             SLOG(LOG_ERROR, TAG_STTC, ">>>> Request stt hello : Fail to make message");
+               result = stt_dbus_reconnect();
+               if (0 != result)
+                       return STT_ERROR_OPERATION_FAILED;
+       }
+
+       if (g_conn_sender) {
                result_msg = dbus_connection_send_with_reply_and_block(g_conn_sender, msg, g_waiting_short_time, &err);
                dbus_message_unref(msg);
                if (dbus_error_is_set(&err)) {
@@ -455,10 +911,16 @@ int stt_dbus_request_hello()
 
                        SLOG(LOG_DEBUG, TAG_STTC, "<<<< stt hello");
                } else {
+                       if (dbus_error_is_set(&err)) {
+                               SLOG(LOG_ERROR, TAG_STTC, "[ERROR] Get arguments error (%s)", err.message);
+                               dbus_error_free(&err);
+                       }
+
                        result = STT_ERROR_TIMED_OUT;
                }
        } else {
                SLOG(LOG_WARN, TAG_STTC, "[WARN] dbus connection handle is null (%p)", g_conn_sender);
+               stt_dbus_reconnect();
                result = STT_ERROR_OPERATION_FAILED;
        }
 
@@ -471,9 +933,9 @@ int stt_dbus_request_initialize(int uid, bool* silence_supported, bool* credenti
        DBusMessage* msg;
 
        msg = dbus_message_new_method_call(
-               STT_SERVER_SERVICE_NAME, 
-               STT_SERVER_SERVICE_OBJECT_PATH, 
-               STT_SERVER_SERVICE_INTERFACE, 
+               g_server_service_name,
+               g_server_service_object,
+               g_server_service_interface,
                STT_METHOD_INITIALIZE);
 
        if (NULL == msg) {
@@ -504,12 +966,17 @@ int stt_dbus_request_initialize(int uid, bool* silence_supported, bool* credenti
                }
 
                if (NULL != result_msg) {
+                       int int_silence_supported = 0;
+                       int int_credential_needed = 0;
                        dbus_message_get_args(result_msg, &err,
                                DBUS_TYPE_INT32, &result,
-                               DBUS_TYPE_INT32, silence_supported,
-                               DBUS_TYPE_INT32, credential_needed,
+                               DBUS_TYPE_INT32, &int_silence_supported,
+                               DBUS_TYPE_INT32, &int_credential_needed,
                                DBUS_TYPE_INVALID);
 
+                       *silence_supported = (bool)(int_silence_supported);
+                       *credential_needed = (bool)(int_credential_needed);
+
                        if (dbus_error_is_set(&err)) {
                                SLOG(LOG_ERROR, TAG_STTC, "<<<< Get arguments error (%s)", err.message);
                                dbus_error_free(&err);
@@ -519,6 +986,18 @@ int stt_dbus_request_initialize(int uid, bool* silence_supported, bool* credenti
                        if (0 == result) {
                                SLOG(LOG_DEBUG, TAG_STTC, "<<<< stt initialize : result = %d, silence(%d), credential(%d)",
                                        result, *silence_supported, *credential_needed);
+
+                               /* add a rule for daemon error */
+                               char rule_err[256] = {0, };
+                               snprintf(rule_err, 256, "sender='org.freedesktop.DBus',path='/org/freedesktop/DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',type='signal',arg0='%s'", g_server_service_interface);
+                               dbus_bus_add_match(g_conn_listener, rule_err, &err);
+                               dbus_connection_flush(g_conn_listener);
+
+                               if (dbus_error_is_set(&err)) {
+                                       SLOG(LOG_ERROR, TAG_STTC, "Match Error (%s)", err.message);
+                                       dbus_error_free(&err);
+                                       return STT_ERROR_OPERATION_FAILED;
+                               }
                        } else {
                                SLOG(LOG_ERROR, TAG_STTC, "<<<< stt initialize : result = %d", result);
                        }
@@ -541,10 +1020,25 @@ int stt_dbus_request_finalize(int uid)
 {
        DBusMessage* msg;
 
+       DBusError err;
+       dbus_error_init(&err);
+
+       /* remove a rule for daemon error */
+       char rule_err[256] = {0, };
+       snprintf(rule_err, 256, "sender='org.freedesktop.DBus',path='/org/freedesktop/DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',type='signal',arg0='%s'", g_server_service_interface);
+       dbus_bus_remove_match(g_conn_listener, rule_err, &err);
+       dbus_connection_flush(g_conn_listener);
+       if (dbus_error_is_set(&err)) {
+               SLOG(LOG_ERROR, TAG_STTC, "Match Error (%s)", err.message);
+               dbus_error_free(&err);
+       }
+
+       SLOG(LOG_DEBUG, TAG_STTC, "[dbus_info] service name: %s, service object: %s, service interface: %s", g_server_service_name, g_server_service_object, g_server_service_interface);
+
        msg = dbus_message_new_method_call(
-               STT_SERVER_SERVICE_NAME
-               STT_SERVER_SERVICE_OBJECT_PATH
-               STT_SERVER_SERVICE_INTERFACE
+               g_server_service_name
+               g_server_service_object
+               g_server_service_interface
                STT_METHOD_FINALIZE);
 
        if (NULL == msg) {
@@ -556,9 +1050,6 @@ int stt_dbus_request_finalize(int uid)
 
        dbus_message_append_args(msg, DBUS_TYPE_INT32, &uid, DBUS_TYPE_INVALID);
 
-       DBusError err;
-       dbus_error_init(&err);
-
        DBusMessage* result_msg;
        int result = STT_ERROR_OPERATION_FAILED;
 
@@ -601,16 +1092,17 @@ int stt_dbus_request_set_current_engine(int uid, const char* engine_id, bool* si
        DBusMessage* msg;
 
        msg = dbus_message_new_method_call(
-               STT_SERVER_SERVICE_NAME
-               STT_SERVER_SERVICE_OBJECT_PATH
-               STT_SERVER_SERVICE_INTERFACE
+               g_server_service_name
+               g_server_service_object
+               g_server_service_interface
                STT_METHOD_SET_CURRENT_ENGINE);
 
+
        if (NULL == msg) {
                SLOG(LOG_ERROR, TAG_STTC, ">>>> stt set engine : Fail to make message");
                return STT_ERROR_OPERATION_FAILED;
        } else {
-               SLOG(LOG_DEBUG, TAG_STTC, ">>>> stt set engine : uid(%d)", uid);
+               SLOG(LOG_DEBUG, TAG_STTC, ">>>> stt set engine : uid(%d), engine_id(%s)", uid, (NULL == engine_id) ? "NULL" : engine_id);
        }
 
        dbus_message_append_args(msg,
@@ -632,15 +1124,21 @@ int stt_dbus_request_set_current_engine(int uid, const char* engine_id, bool* si
        }
 
        if (NULL != result_msg) {
+               int int_silence_supported = 0;
+               int int_credential_needed = 0;
+
                dbus_message_get_args(result_msg, &err, 
                        DBUS_TYPE_INT32, &result, 
-                       DBUS_TYPE_INT32, silence_supported,
-                       DBUS_TYPE_INT32, credential_needed,
+                       DBUS_TYPE_INT32, &int_silence_supported,
+                       DBUS_TYPE_INT32, &int_credential_needed,
                        DBUS_TYPE_INVALID);
 
+               *silence_supported = (bool)(int_silence_supported);
+               *credential_needed = (bool)(int_credential_needed);
+
                if (dbus_error_is_set(&err)) {
                        SLOG(LOG_ERROR, TAG_STTC, "<<<< Get arguments error (%s)", err.message);
-                       dbus_error_free(&err); 
+                       dbus_error_free(&err);
                        result = STT_ERROR_OPERATION_FAILED;
                }
 
@@ -671,9 +1169,9 @@ int stt_dbus_request_check_app_agreed(int uid, const char* appid, bool* value)
        DBusMessage* msg;
 
        msg = dbus_message_new_method_call(
-               STT_SERVER_SERVICE_NAME
-               STT_SERVER_SERVICE_OBJECT_PATH
-               STT_SERVER_SERVICE_INTERFACE
+               g_server_service_name
+               g_server_service_object
+               g_server_service_interface
                STT_METHOD_CHECK_APP_AGREED);
 
        if (NULL == msg) {
@@ -740,9 +1238,9 @@ int stt_dbus_request_get_support_langs(int uid, stt_h stt, stt_supported_languag
        DBusMessage* msg;
 
        msg = dbus_message_new_method_call(
-               STT_SERVER_SERVICE_NAME
-               STT_SERVER_SERVICE_OBJECT_PATH
-               STT_SERVER_SERVICE_INTERFACE
+               g_server_service_name
+               g_server_service_object
+               g_server_service_interface
                STT_METHOD_GET_SUPPORT_LANGS);
 
        if (NULL == msg) {
@@ -825,9 +1323,9 @@ int stt_dbus_request_get_default_lang(int uid, char** language)
        DBusMessage* msg;
 
        msg = dbus_message_new_method_call(
-               STT_SERVER_SERVICE_NAME
-               STT_SERVER_SERVICE_OBJECT_PATH
-               STT_SERVER_SERVICE_INTERFACE
+               g_server_service_name
+               g_server_service_object
+               g_server_service_interface
                STT_METHOD_GET_CURRENT_LANG);
 
        if (NULL == msg) {
@@ -883,6 +1381,152 @@ int stt_dbus_request_get_default_lang(int uid, char** language)
        return result;
 }
 
+int stt_dbus_request_set_private_data(int uid, const char* key, const char* data)
+{
+       if (NULL == key || NULL == data) {
+               SLOG(LOG_ERROR, TAG_STTC, "Input parameter is NULL");
+               return STT_ERROR_INVALID_PARAMETER;
+       }
+
+       DBusMessage* msg;
+
+       msg = dbus_message_new_method_call(
+               g_server_service_name, 
+               g_server_service_object, 
+               g_server_service_interface, 
+               STT_METHOD_SET_PRIVATE_DATA);
+
+       if (NULL == msg) {
+               SLOG(LOG_ERROR, TAG_STTC, ">>>> stt set private data : Fail to make message");
+               return STT_ERROR_OPERATION_FAILED;
+       } else {
+               SLOG(LOG_DEBUG, TAG_STTC, ">>>> stt set private data : uid(%d)", uid);
+       }
+
+       if (true != dbus_message_append_args(msg,
+                       DBUS_TYPE_INT32, &uid,
+                       DBUS_TYPE_STRING, &key,
+                       DBUS_TYPE_STRING, &data,
+                       DBUS_TYPE_INVALID)) {
+               SLOG(LOG_ERROR, TAG_STTC, "[ERROR] Fail to append args");
+               return STT_ERROR_OPERATION_FAILED;
+       }
+
+       DBusError err;
+       dbus_error_init(&err);
+
+       DBusMessage* result_msg;
+       int result = STT_ERROR_OPERATION_FAILED;
+
+       result_msg = dbus_connection_send_with_reply_and_block(g_conn_sender, msg, g_waiting_time, &err);
+       dbus_message_unref(msg);
+       if (dbus_error_is_set(&err)) {
+               SLOG(LOG_ERROR, TAG_STTC, "[ERROR] Send Error (%s)", err.message);
+               dbus_error_free(&err);
+       }
+
+       if (NULL != result_msg) {
+               dbus_message_get_args(result_msg, &err,
+                       DBUS_TYPE_INT32, &result,
+                       DBUS_TYPE_INVALID);
+
+               if (dbus_error_is_set(&err)) {
+                       SLOG(LOG_ERROR, TAG_STTC, "<<<< Get arguments error (%s)", err.message);
+                       dbus_error_free(&err);
+                       result = STT_ERROR_OPERATION_FAILED;
+               }
+               dbus_message_unref(result_msg);
+
+               if (0 == result) {
+                       SLOG(LOG_DEBUG, TAG_STTC, "<<<< stt set private data : result = %d", result);
+               } else {
+                       SLOG(LOG_ERROR, TAG_STTC, "<<<< stt set private data : result = %d", result);
+               }
+       } else {
+               SLOG(LOG_ERROR, TAG_STTC, "<<<< Result message is NULL");
+               stt_dbus_reconnect();
+               result = STT_ERROR_TIMED_OUT;
+       }
+
+       return result;
+}
+
+int stt_dbus_request_get_private_data(int uid, const char* key, char** data)
+{
+       if (NULL == key || NULL == data) {
+               SLOG(LOG_ERROR, TAG_STTC, "Input parameter is NULL");
+               return STT_ERROR_INVALID_PARAMETER;
+       }
+
+       DBusMessage* msg;
+
+       msg = dbus_message_new_method_call(
+               g_server_service_name, 
+               g_server_service_object, 
+               g_server_service_interface, 
+               STT_METHOD_GET_PRIVATE_DATA);
+
+       if (NULL == msg) {
+               SLOG(LOG_ERROR, TAG_STTC, ">>>> stt get private data : Fail to make message");
+               return STT_ERROR_OPERATION_FAILED;
+       } else {
+               SLOG(LOG_DEBUG, TAG_STTC, ">>>> stt get private data : uid(%d)", uid);
+       }
+
+       if (true != dbus_message_append_args(msg,
+                       DBUS_TYPE_INT32, &uid,
+                       DBUS_TYPE_STRING, &key,
+                       DBUS_TYPE_INVALID)) {
+               SLOG(LOG_ERROR, TAG_STTC, "[ERROR] Fail to append args");
+               return STT_ERROR_OPERATION_FAILED;
+       }
+
+       DBusError err;
+       dbus_error_init(&err);
+
+       DBusMessage* result_msg;
+       int result = STT_ERROR_OPERATION_FAILED;
+
+       result_msg = dbus_connection_send_with_reply_and_block(g_conn_sender, msg, g_waiting_time, &err);
+       dbus_message_unref(msg);
+       if (dbus_error_is_set(&err)) {
+               SLOG(LOG_ERROR, TAG_STTC, "[ERROR] Send Error (%s)", err.message);
+               dbus_error_free(&err);
+       }
+
+       char* temp = NULL;
+       if (NULL != result_msg) {
+               dbus_message_get_args(result_msg, &err,
+                       DBUS_TYPE_INT32, &result,
+                       DBUS_TYPE_STRING, &temp,
+                       DBUS_TYPE_INVALID);
+
+               if (dbus_error_is_set(&err)) {
+                       SLOG(LOG_ERROR, TAG_STTC, "<<<< Get arguments error (%s)", err.message);
+                       dbus_error_free(&err);
+                       result = STT_ERROR_OPERATION_FAILED;
+               }
+               dbus_message_unref(result_msg);
+
+               if (0 == result) {
+                       SLOG(LOG_DEBUG, TAG_STTC, "<<<< stt get private data : result = %d", result);
+                       if (NULL != temp) {
+                               *data = strdup(temp);
+                       }
+               } else {
+                       SLOG(LOG_ERROR, TAG_STTC, "<<<< stt get private data : result = %d", result);
+               }
+       } else {
+               SLOG(LOG_ERROR, TAG_STTC, "<<<< Result message is NULL");
+               stt_dbus_reconnect();
+               result = STT_ERROR_TIMED_OUT;
+       }
+
+       return result;
+}
+
+
+
 int stt_dbus_request_is_recognition_type_supported(int uid, const char* type, bool* support)
 {
        if (NULL == support || NULL == type) {
@@ -893,10 +1537,10 @@ int stt_dbus_request_is_recognition_type_supported(int uid, const char* type, bo
        DBusMessage* msg;
 
        msg = dbus_message_new_method_call(
-                  STT_SERVER_SERVICE_NAME
-                  STT_SERVER_SERVICE_OBJECT_PATH
-                  STT_SERVER_SERVICE_INTERFACE
-                  STT_METHOD_IS_TYPE_SUPPORTED);
+               g_server_service_name
+               g_server_service_object
+               g_server_service_interface
+               STT_METHOD_IS_TYPE_SUPPORTED);
 
        if (NULL == msg) {
                SLOG(LOG_ERROR, TAG_STTC, ">>>> stt is partial result supported : Fail to make message");
@@ -962,10 +1606,10 @@ int stt_dbus_request_set_start_sound(int uid, const char* file)
        DBusMessage* msg;
 
        msg = dbus_message_new_method_call(
-                  STT_SERVER_SERVICE_NAME
-                  STT_SERVER_SERVICE_OBJECT_PATH
-                  STT_SERVER_SERVICE_INTERFACE
-                  STT_METHOD_SET_START_SOUND);
+               g_server_service_name
+               g_server_service_object
+               g_server_service_interface
+               STT_METHOD_SET_START_SOUND);
 
        if (NULL == msg) {
                SLOG(LOG_ERROR, TAG_STTC, ">>>> stt set start sound : Fail to make message");
@@ -1023,10 +1667,10 @@ int stt_dbus_request_unset_start_sound(int uid)
        DBusMessage* msg;
 
        msg = dbus_message_new_method_call(
-                  STT_SERVER_SERVICE_NAME
-                  STT_SERVER_SERVICE_OBJECT_PATH
-                  STT_SERVER_SERVICE_INTERFACE
-                  STT_METHOD_UNSET_START_SOUND);
+               g_server_service_name
+               g_server_service_object
+               g_server_service_interface
+               STT_METHOD_UNSET_START_SOUND);
 
        if (NULL == msg) {
                SLOG(LOG_ERROR, TAG_STTC, ">>>> stt unset start sound : Fail to make message");
@@ -1088,10 +1732,10 @@ int stt_dbus_request_set_stop_sound(int uid, const char* file)
        DBusMessage* msg;
 
        msg = dbus_message_new_method_call(
-                  STT_SERVER_SERVICE_NAME
-                  STT_SERVER_SERVICE_OBJECT_PATH
-                  STT_SERVER_SERVICE_INTERFACE
-                  STT_METHOD_SET_STOP_SOUND);
+               g_server_service_name
+               g_server_service_object
+               g_server_service_interface
+               STT_METHOD_SET_STOP_SOUND);
 
        if (NULL == msg) {
                SLOG(LOG_ERROR, TAG_STTC, ">>>> stt set stop sound : Fail to make message");
@@ -1149,10 +1793,10 @@ int stt_dbus_request_unset_stop_sound(int uid)
        DBusMessage* msg;
 
        msg = dbus_message_new_method_call(
-                  STT_SERVER_SERVICE_NAME
-                  STT_SERVER_SERVICE_OBJECT_PATH
-                  STT_SERVER_SERVICE_INTERFACE
-                  STT_METHOD_UNSET_STOP_SOUND);
+               g_server_service_name
+               g_server_service_object
+               g_server_service_interface
+               STT_METHOD_UNSET_STOP_SOUND);
 
        if (NULL == msg) {
                SLOG(LOG_ERROR, TAG_STTC, ">>>> stt unset stop sound : Fail to make message");
@@ -1215,10 +1859,10 @@ int stt_dbus_request_start(int uid, const char* lang, const char* type, int sile
 
        /* create a signal & check for errors */
        msg = dbus_message_new_method_call(
-               STT_SERVER_SERVICE_NAME,
-               STT_SERVER_SERVICE_OBJECT_PATH
-               STT_SERVER_SERVICE_INTERFACE,   
-               STT_METHOD_START);              
+               g_server_service_name, 
+               g_server_service_object
+               g_server_service_interface, 
+               STT_METHOD_START);
 
        if (NULL == msg) {
                SLOG(LOG_ERROR, TAG_STTC, ">>>> stt start : Fail to make message");
@@ -1227,13 +1871,20 @@ int stt_dbus_request_start(int uid, const char* lang, const char* type, int sile
                SLOG(LOG_DEBUG, TAG_STTC, ">>>> stt start : uid(%d), language(%s), type(%s)", uid, lang, type);
        }
 
+       char *temp = NULL;
+       if (NULL == credential) {
+               temp = strdup("NULL");
+       } else {
+               temp = strdup(credential);
+       }
+
        dbus_message_append_args(msg,
                DBUS_TYPE_INT32, &uid,
                DBUS_TYPE_STRING, &lang,
                DBUS_TYPE_STRING, &type,
                DBUS_TYPE_INT32, &silence,
                DBUS_TYPE_STRING, &appid,
-               DBUS_TYPE_STRING, &credential,
+               DBUS_TYPE_STRING, &temp,
                DBUS_TYPE_INVALID);
 #if 1
        if (g_conn_sender) {
@@ -1241,6 +1892,10 @@ int stt_dbus_request_start(int uid, const char* lang, const char* type, int sile
 
                if (!dbus_connection_send(g_conn_sender, msg, NULL)) {
                        SLOG(LOG_ERROR, TAG_STTC, "[Dbus ERROR] <<<< stt start message : Out Of Memory !");
+                       if (NULL != temp) {
+                                       free(temp);
+                                       temp = NULL;
+                       }
                        return STT_ERROR_OUT_OF_MEMORY;
                } else {
                        dbus_connection_flush(g_conn_sender);
@@ -1250,9 +1905,17 @@ int stt_dbus_request_start(int uid, const char* lang, const char* type, int sile
 
        } else {
                SLOG(LOG_WARN, TAG_STTC, "[WARN] dbus connection handle is null (%p)", g_conn_sender);
+               if (NULL != temp) {
+                               free(temp);
+                               temp = NULL;
+               }
                return STT_ERROR_OPERATION_FAILED;
        }
 
+       if (NULL != temp) {
+                       free(temp);
+                       temp = NULL;
+       }
        return 0;
 #else
        DBusError err;
@@ -1301,9 +1964,9 @@ int stt_dbus_request_stop(int uid)
 
        /* create a signal & check for errors */
        msg = dbus_message_new_method_call(
-               STT_SERVER_SERVICE_NAME,
-               STT_SERVER_SERVICE_OBJECT_PATH
-               STT_SERVER_SERVICE_INTERFACE,   
+               g_server_service_name, 
+               g_server_service_object
+               g_server_service_interface, 
                STT_METHOD_STOP);
 
        if (NULL == msg) {
@@ -1381,10 +2044,10 @@ int stt_dbus_request_cancel(int uid)
 
        /* create a signal & check for errors */
        msg = dbus_message_new_method_call(
-               STT_SERVER_SERVICE_NAME,
-               STT_SERVER_SERVICE_OBJECT_PATH, /* object name of the signal */
-               STT_SERVER_SERVICE_INTERFACE,   /* interface name of the signal */
-               STT_METHOD_CANCEL);     /* name of the signal */
+               g_server_service_name, 
+               g_server_service_object, 
+               g_server_service_interface, 
+               STT_METHOD_CANCEL);
 
        if (NULL == msg) {
                SLOG(LOG_ERROR, TAG_STTC, ">>>> stt cancel : Fail to make message");