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 decode_device_to_busmessage(const BusMessage *ret_val,
  69                                 Device *device,
  70                                 int indx) {
  71         ostringstream   key;
  72         SensorDevice    *sensor;
  73         Data            *data;
  74         string          data_str;
  75
  76         if ((ret_val != NULL) &&
  77             (device != NULL)) {
  78                 key.str("");
  79                 key << RSP__DEVICE_LIST__ID << indx;
  80                 ((BusMessage *)ret_val)->add_string_parameter(key.str(), device->get_id());
  81
  82                 key.str("");
  83                 key << RSP__DEVICE_LIST__NAME << indx;
  84                 ((BusMessage *)ret_val)->add_string_parameter(key.str(), device->get_name());
  85
  86                 key.str("");
  87                 key << RSP__DEVICE_LIST__TYPE << indx;
  88                 ((BusMessage *)ret_val)->add_string_parameter(key.str(), device->get_type());
  89
  90                 key.str("");
  91                 key << RSP__DEVICE_LIST__LF_STATE << indx;
  92                 ((BusMessage *)ret_val)->add_int_parameter(key.str(), device->get_lifecycle_state());
  93                 sensor = dynamic_cast<SensorDevice *>(device);
  94                 if (sensor != NULL) {
  95                         key.str("");
  96                         key << RSP__DEVICE_LIST__DATA << indx;
  97                         data    = sensor->get_data();
  98                         if (data != NULL) {
  99                                 data_str        = data->to_string();
 100                                 log_debug("returning data: %s\n", data_str.c_str());
 101                                 ((BusMessage *)ret_val)->add_string_parameter(key.str(), data_str);
 102                                 delete(data);
 103                         }
 104                 }
 105         }
 106 }
 107
 108 void DeviceManagerServer::get_device_list(const BusMessage *ret_val) {
 109         list<Device *>::iterator        list_iter;
 110         Device                          *device;
 111         int                             indx;
 112
 113         indx    = 0;
 114         ((BusMessage *)ret_val)->add_int_parameter(RSP__DEVICE_LIST__DEVICE_COUNT, _dev_lst.size());
 115         for (list_iter = _dev_lst.begin(); list_iter != _dev_lst.end(); list_iter++) {
 116                 device  = (Device *)*list_iter;
 117                 decode_device_to_busmessage(ret_val,
 118                                         device,
 119                                         indx);
 120                 indx++;
 121         }
 122 }
 123
 124 const Device *DeviceManagerServer::get_device_by_id(string id_param) {
 125         Device                  *ret_val;
 126         Device                  *device;
 127         list<Device *>::iterator list_iter;
 128
 129         ret_val = NULL;
 130         for(list_iter = _dev_lst.begin(); list_iter != _dev_lst.end(); list_iter++) {
 131                 device  = (Device *)*list_iter;
 132                 if (device != NULL) {
 133                         if (device->get_id().compare(id_param) == 0) {
 134                                 ret_val = device;
 135                                 break;
 136                         }
 137                 }
 138         }
 139         return ret_val;
 140 }
 141
 142 static void add_data_values_to_bus_message(const BusMessage *msg_rsp_param,
 143                                         Data *data,
 144                                         string key_name_base_param) {
 145         string val_str;
 146
 147         val_str = data->to_string();
 148         ((BusMessage *)msg_rsp_param)->add_string_parameter(key_name_base_param, val_str);
 149 }
 150
 151 void decode_data_to_busmessage(const BusMessage *ret_val,
 152                         const DataReader *reader) {
 153         DataRange       *dr;
 154         Data            *data;
 155
 156         data    = ((DataReader *)reader)->get_latest_data();
 157         if (data != NULL) {
 158                 add_data_values_to_bus_message(ret_val,
 159                                         data,
 160                                         RSP__GET_LATEST_DATA__VALUE);
 161                 //((BusMessage *)ret_val)->printout();
 162                 delete(data);
 163         }
 164         dr      = ((DataReader *)reader)->get_daily_summary(MIN);
 165         if (dr != NULL) {
 166                 if (dr->get_count() > 0) {
 167                         data    = dr->get_first();;
 168                         add_data_values_to_bus_message(ret_val,
 169                                         data,
 170                                         RSP__GET_LATEST_DATA__MIN_VALUE);
 171                         delete(data);
 172                 }
 173                 delete(dr);
 174         }
 175         dr      = ((DataReader *)reader)->get_daily_summary(MAX);
 176         if (dr != NULL) {
 177                 if (dr->get_count() > 0) {
 178                         data    = dr->get_first();
 179                         add_data_values_to_bus_message(ret_val,
 180                                                 data,
 181                                                 RSP__GET_LATEST_DATA__MAX_VALUE);
 182                         delete(data);
 183                 }
 184                 delete(dr);
 185         }
 186 }
 187
 188 void DeviceManagerServer::get_latest_data(BusMessage *msg_req_param,
 189                                         const BusMessage *ret_val) {
 190         string                  id;
 191         int                     err_flg;
 192         Device                  *dev;
 193         SensorDevice            *sensor;
 194         ostringstream           key;
 195         const DataReader        *reader;
 196
 197         id      = msg_req_param->get_string_parameter(REQ__GET_LATEST_DATA__ID, &err_flg);
 198         if (err_flg == PLP_OK) {
 199                 dev     = (Device *)get_device_by_id(id);
 200                 if (dev != NULL) {
 201                         sensor  = dynamic_cast<SensorDevice *>(dev);
 202                         if (sensor != NULL) {
 203                                 reader  = sensor->get_device_data();
 204                                 decode_data_to_busmessage(ret_val, reader);
 205                         }
 206                 }
 207         }
 208 }