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         string                          data_str;
  76
  77         indx    = 0;
  78         ((BusMessage *)ret_val)->add_int_parameter(RSP__DEVICE_LIST__DEVICE_COUNT, _dev_lst.size());
  79         for (list_iter = _dev_lst.begin(); list_iter != _dev_lst.end(); list_iter++) {
  80                 device  = (Device *)*list_iter;
  81                 if (device != NULL) {
  82                         key.str("");
  83                         key << RSP__DEVICE_LIST__ID << indx;
  84                         ((BusMessage *)ret_val)->add_string_parameter(key.str(), device->get_id());
  85
  86                         key.str("");
  87                         key << RSP__DEVICE_LIST__NAME << indx;
  88                         ((BusMessage *)ret_val)->add_string_parameter(key.str(), device->get_name());
  89
  90                         key.str("");
  91                         key << RSP__DEVICE_LIST__TYPE << indx;
  92                         ((BusMessage *)ret_val)->add_string_parameter(key.str(), device->get_type());
  93
  94                         key.str("");
  95                         key << RSP__DEVICE_LIST__LF_STATE << indx;
  96                         ((BusMessage *)ret_val)->add_int_parameter(key.str(), device->get_lifecycle_state());
  97                         sensor = dynamic_cast<SensorDevice *>(device);
  98                         if (sensor != NULL) {
  99                                 key.str("");
 100                                 key << RSP__DEVICE_LIST__DATA << indx;
 101                                 data    = sensor->get_data();
 102                                 if (data != NULL) {
 103                                         data_str = data->to_string();
 104                                         log_debug("returning data: %s\n", data_str.c_str());
 105                                         ((BusMessage *)ret_val)->add_string_parameter(key.str(), data_str);
 106                                         delete(data);
 107                                 }
 108                         }
 109                         indx++;
 110                 }
 111         }
 112 }
 113
 114 const Device *DeviceManagerServer::get_device_by_id(string id_param) {
 115         Device                  *ret_val;
 116         Device                  *device;
 117         list<Device *>::iterator list_iter;
 118
 119         ret_val = NULL;
 120         for(list_iter = _dev_lst.begin(); list_iter != _dev_lst.end(); list_iter++) {
 121                 device  = (Device *)*list_iter;
 122                 if (device != NULL) {
 123                         if (device->get_id().compare(id_param) == 0) {
 124                                 ret_val = device;
 125                                 break;
 126                         }
 127                 }
 128         }
 129         return ret_val;
 130 }
 131
 132 static void add_data_values_to_bus_message(const BusMessage *msg_rsp_param, Data *data, string key_name_base_param) {
 133         int             ii;
 134         int             cnt;
 135         double          val;
 136         ostringstream   key;
 137
 138         cnt     = data->get_value_count();
 139         for (ii = 0; ii < cnt; ii++) {
 140                 key.str("");
 141                 key << key_name_base_param.c_str() << ii;
 142                 val     = data->get(ii);
 143                 ((BusMessage *)msg_rsp_param)->add_double_parameter(key.str(), val);
 144         }
 145 }
 146
 147 void DeviceManagerServer::get_latest_data(BusMessage *msg_req_param, const BusMessage *ret_val) {
 148         string                  id;
 149         int                     err_flg;
 150         Device                  *dev;
 151         SensorDevice            *sensor;
 152         Data                    *data;
 153         ostringstream           key;
 154         int                     cnt;
 155         const DataReader        *reader;
 156         DataRange               *dr;
 157
 158         id      = msg_req_param->get_string_parameter(REQ__GET_LATEST_DATA__ID, &err_flg);
 159         if (err_flg == PLP_OK) {
 160                 dev     = (Device *)get_device_by_id(id);
 161                 if (dev != NULL) {
 162                         sensor  = dynamic_cast<SensorDevice *>(dev);
 163                         if (sensor != NULL) {
 164                                 reader  = sensor->get_device_data();
 165                                 data    = ((DataReader *)reader)->get_latest_data();
 166                                 if (data != NULL) {
 167                                         cnt     = data->get_value_count();
 168                                         ((BusMessage *)ret_val)->add_int_parameter(RSP__GET_LATEST_DATA__VALUE_COUNT, cnt);
 169                                         ((BusMessage *)ret_val)->add_string_parameter(RSP__GET_LATEST_DATA__DATE,
 170                                                                                 data->get_date().to_string());
 171                                         add_data_values_to_bus_message(ret_val,
 172                                                                         data, RSP__GET_LATEST_DATA__VALUE);
 173                                         ((BusMessage *)ret_val)->printout();
 174                                         dr      = ((DataReader *)reader)->get_daily_summary(MIN);
 175                                         if (dr != NULL) {
 176                                                 if (dr->get_count() > 0) {
 177                                                         data    = dr->get_first()->clone();;
 178                                                         add_data_values_to_bus_message(ret_val,
 179                                                                         data,
 180                                                                         RSP__GET_LATEST_DATA__MIN_VALUE);
 181                                                 }
 182                                                 delete(dr);
 183                                         }
 184                                         dr      = ((DataReader *)reader)->get_daily_summary(MAX);
 185                                         if (dr != NULL) {
 186                                                 if (dr->get_count() > 0) {
 187                                                         data    = dr->get_first()->clone();
 188                                                         add_data_values_to_bus_message(ret_val,
 189                                                                                 data,
 190                                                                                 RSP__GET_LATEST_DATA__MAX_VALUE);
 191                                                 }
 192                                                 delete(dr);
 193                                         }
 194                                 }
 195                         }
 196                 }
 197         }
 198 }