src_server/DeviceManagerServer.cc

   1 /*
   2  * DeviceManager.cc
   3  *
   4  *  Created on: Mar 3, 2011
   5  *      Author: lamikr
   6  */
   7 #include <sstream>
   8 #include <typeinfo>
   9
  10 #include <plp/log.h>
  11 #include <plp/retval.h>
  12
  13 #include <plp/Data.hh>
  14 #include <plp/Device.hh>
  15 #include <plp/SensorDevice.hh>
  16 #include <plp/DeviceConfig.hh>
  17
  18 #include "DeviceManagerServer.hh"
  19 #include "../src/plp/devicebus/DeviceBusMessageId.hh"
  20
  21 using namespace plpdevicebus;
  22
  23 static void *device_data_reader_thread(void *thread_args_pointer) {
  24         list<Device *>                  *_dev_lst;
  25         list<Device *>::iterator        list_iter;
  26         Device                          *device;
  27         SensorDevice                    *sensor;
  28         long                            read_int_sec;
  29         plp::Data                       *data;
  30
  31         read_int_sec    = DeviceConfig::get_read_interval_seconds();
  32         if (read_int_sec < 0)
  33                 read_int_sec = 600;
  34         _dev_lst        = (list<Device *> *)thread_args_pointer;
  35         while(1) {
  36                 for (list_iter = _dev_lst->begin(); list_iter != _dev_lst->end(); list_iter++) {
  37                         device  = (Device *)*list_iter;
  38                         sensor = dynamic_cast<SensorDevice *>(device);
  39                         if (sensor != NULL) {
  40                                 data = sensor->get_data();
  41                                 if (data != NULL)
  42                                         delete(data);
  43                         }
  44                 }
  45                 sleep(read_int_sec);
  46         }
  47         pthread_exit(NULL);
  48 }
  49
  50 DeviceManagerServer::DeviceManagerServer(list<Device *> dev_lst_param) {
  51         //DeviceConfig::set_base_dir_name(storage_dir_param);
  52         //_dev_lst      = Factory::get_device_list();
  53         _dev_lst        = dev_lst_param;
  54         /* In some toolchains the size is not unsigned int instead of long
  55            unsigned int, and that can cause warnings/errors without typecasting
  56          */
  57         log_info("device count: %lu\n", (long unsigned int)_dev_lst.size());
  58         _lstnr_thrd     = 0;
  59         pthread_create(&_lstnr_thrd,
  60                         NULL,
  61                         device_data_reader_thread,
  62                         (void *)&_dev_lst);
  63 }
  64
  65 DeviceManagerServer::~DeviceManagerServer() {
  66 }
  67
  68 void DeviceManagerServer::get_device_list(const BusMessage *ret_val) {
  69         Data                            *data;
  70         list<Device *>::iterator        list_iter;
  71         Device                          *device;
  72         SensorDevice                    *sensor;
  73         int                             indx;
  74         ostringstream                   key;
  75
  76         indx    = 0;
  77         ((BusMessage *)ret_val)->add_int_parameter(RSP__DEVICE_LIST__DEVICE_COUNT, _dev_lst.size());
  78         for (list_iter = _dev_lst.begin(); list_iter != _dev_lst.end(); list_iter++) {
  79                 device  = (Device *)*list_iter;
  80                 if (device != NULL) {
  81                         key.str("");
  82                         key << RSP__DEVICE_LIST__ID << indx;
  83                         ((BusMessage *)ret_val)->add_string_parameter(key.str(), device->get_id());
  84
  85                         key.str("");
  86                         key << RSP__DEVICE_LIST__NAME << indx;
  87                         ((BusMessage *)ret_val)->add_string_parameter(key.str(), device->get_name());
  88
  89                         key.str("");
  90                         key << RSP__DEVICE_LIST__TYPE << indx;
  91                         ((BusMessage *)ret_val)->add_string_parameter(key.str(), device->get_type());
  92
  93                         key.str("");
  94                         key << RSP__DEVICE_LIST__LF_STATE << indx;
  95                         ((BusMessage *)ret_val)->add_int_parameter(key.str(), device->get_lifecycle_state());
  96                         sensor = dynamic_cast<SensorDevice *>(device);
  97                         if (sensor != NULL) {
  98                                 key.str("");
  99                                 key << RSP__DEVICE_LIST__DATA << indx;
 100                                 data    = sensor->get_data();
 101                                 if (data != NULL) {
 102                                         log_debug("returning data: %s\n", data->to_string().c_str());
 103                                         ((BusMessage *)ret_val)->add_string_parameter(key.str(), data->to_string());
 104                                         delete(data);
 105                                 }
 106                         }
 107                         indx++;
 108                 }
 109         }
 110 }
 111
 112 const Device *DeviceManagerServer::get_device_by_id(string id_param) {
 113         Device                  *ret_val;
 114         Device                  *device;
 115         list<Device *>::iterator list_iter;
 116
 117         ret_val = NULL;
 118         for(list_iter = _dev_lst.begin(); list_iter != _dev_lst.end(); list_iter++) {
 119                 device  = (Device *)*list_iter;
 120                 if (device != NULL) {
 121                         if (device->get_id().compare(id_param) == 0) {
 122                                 ret_val = device;
 123                                 break;
 124                         }
 125                 }
 126         }
 127         return ret_val;
 128 }
 129
 130 static void add_data_values_to_bus_message(const BusMessage *msg_rsp_param, Data *data, string key_name_base_param) {
 131         int             ii;
 132         int             cnt;
 133         double          val;
 134         ostringstream   key;
 135
 136         cnt     = data->get_value_count();
 137         for (ii = 0; ii < cnt; ii++) {
 138                 key.str("");
 139                 key << key_name_base_param.c_str() << ii;
 140                 val     = data->get(ii);
 141                 ((BusMessage *)msg_rsp_param)->add_double_parameter(key.str(), val);
 142         }
 143 }
 144
 145 void DeviceManagerServer::get_latest_data(BusMessage *msg_req_param, const BusMessage *ret_val) {
 146         string                  id;
 147         int                     err_flg;
 148         Device                  *dev;
 149         SensorDevice            *sensor;
 150         Data                    *data;
 151         ostringstream           key;
 152         int                     cnt;
 153         const DataReader        *reader;
 154         DataRange               *dr;
 155
 156         id      = msg_req_param->get_string_parameter(REQ__GET_LATEST_DATA__ID, &err_flg);
 157         if (err_flg == PLP_OK) {
 158                 dev     = (Device *)get_device_by_id(id);
 159                 if (dev != NULL) {
 160                         sensor  = dynamic_cast<SensorDevice *>(dev);
 161                         if (sensor != NULL) {
 162                                 reader  = sensor->get_device_data();
 163                                 data    = ((DataReader *)reader)->get_latest_data();
 164                                 if (data != NULL) {
 165                                         cnt     = data->get_value_count();
 166                                         ((BusMessage *)ret_val)->add_int_parameter(RSP__GET_LATEST_DATA__VALUE_COUNT, cnt);
 167                                         ((BusMessage *)ret_val)->add_string_parameter(RSP__GET_LATEST_DATA__DATE, data->get_date().to_string());
 168                                         add_data_values_to_bus_message(ret_val, data, RSP__GET_LATEST_DATA__VALUE);
 169                                         ((BusMessage *)ret_val)->printout();
 170                                         dr      = ((DataReader *)reader)->get_daily_summary(MIN);
 171                                         if (dr != NULL) {
 172                                                 if (dr->get_count() > 0) {
 173                                                         data    = dr->get_first()->clone();;
 174                                                         add_data_values_to_bus_message(ret_val, data, RSP__GET_LATEST_DATA__MIN_VALUE);
 175                                                 }
 176                                                 delete(dr);
 177                                         }
 178                                         dr      = ((DataReader *)reader)->get_daily_summary(MAX);
 179                                         if (dr != NULL) {
 180                                                 if (dr->get_count() > 0) {
 181                                                         data    = dr->get_first()->clone();
 182                                                         add_data_values_to_bus_message(ret_val, data, RSP__GET_LATEST_DATA__MAX_VALUE);
 183                                                 }
 184                                                 delete(dr);
 185                                         }
 186                                 }
 187                         }
 188                 }
 189         }
 190 }