src_client/DeviceManagerClient.cc

   1 /*
   2  * DeviceManagerClient.cc
   3  *
   4  *  Created on: Mar 4, 2011
   5  *      Author: lamikr
   6  */
   7 #include <sstream>
   8 #include <string>
   9
  10 #include <plp/log.h>
  11 #include <plp/retval.h>
  12
  13 #include <plp/Data.hh>
  14 #include <plp/DeviceData.hh>
  15
  16 #include "DeviceManagerClient.hh"
  17 #include "../src/plp/devicebus/DeviceBusMessageId.hh"
  18
  19 using namespace std;
  20 using namespace plp;
  21 using namespace plpbus;
  22 using namespace plpdevicebus;
  23
  24 DeviceManagerClient::DeviceManagerClient() {
  25         _device_list    = NULL;
  26 }
  27
  28 static void clean_device_list(list<Device *> *dev_lst) {
  29         Device  *dev;
  30
  31         if (dev_lst != NULL) {
  32                 while (dev_lst->empty() == false) {
  33                         dev     = dev_lst->back();
  34                         dev_lst->pop_back();
  35                         delete(dev);
  36                 }
  37                 delete(dev_lst);
  38                 dev_lst = NULL;
  39         }
  40 }
  41
  42 DeviceManagerClient::~DeviceManagerClient() {
  43         clean_device_list(_device_list);
  44 }
  45
  46 const std::list<plp::Device *> *DeviceManagerClient::get_device_list(BusClient *client_param,
  47                                                                 int *err_flg) {
  48         //send_request__get_device_list(client_param);
  49
  50         BusMessage      *msg_req;
  51         BusMessage      *msg_rsp;
  52
  53         msg_rsp = NULL;
  54         msg_req = new BusMessage(MSG_TYPE_ID__GET_DEVICE_LIST);
  55         client_param->send_message_and_wait_response(msg_req, &msg_rsp);
  56         clean_device_list(_device_list);
  57         _device_list    = parse_device_list_msg(msg_rsp, err_flg);
  58         delete(msg_req);
  59         delete(msg_rsp);
  60
  61         return _device_list;
  62 }
  63
  64 void DeviceManagerClient::parse_device_data_msg(BusMessage *msg_param,
  65                                         DataRange *result,
  66                                         string key,
  67                                         int *err_flg,
  68                                         string description) {
  69         string          data_str;
  70         Data            *data;
  71
  72         *err_flg        = PLP_ERR;
  73         data            = NULL;
  74         if ((msg_param != NULL) &&
  75             (result != NULL)) {
  76                 data_str        = msg_param->get_string_parameter(RSP__GET_LATEST_DATA__VALUE, err_flg);
  77                 if (data_str.empty() == false) {
  78                         data    = Data::parse_string(data_str);
  79                 }
  80                 if (data == NULL) {
  81                         data    = new Data(0);
  82                 }
  83                 result->add(data);
  84                 log_debug("%s\n", description.c_str());
  85                 data->printout();
  86                 delete(data);
  87         }
  88 }
  89
  90 DataRange *DeviceManagerClient::parse_device_data_msg(BusMessage *msg_param,
  91                                                 int *err_flg) {
  92         DataRange       *ret_val;
  93
  94         *err_flg        = PLP_ERR;
  95         ret_val         = NULL;
  96         if (msg_param != NULL) {
  97                 ret_val         = new DataRange();
  98                 parse_device_data_msg(msg_param, ret_val, RSP__GET_LATEST_DATA__VALUE, err_flg, "latest data");
  99                 parse_device_data_msg(msg_param, ret_val, RSP__GET_LATEST_DATA__MIN_VALUE, err_flg, "min data value");
 100                 parse_device_data_msg(msg_param, ret_val, RSP__GET_LATEST_DATA__MAX_VALUE, err_flg, "max data value");
 101
 102                 *err_flg        = PLP_OK;
 103         }
 104         return ret_val;
 105 }
 106
 107 Data *DeviceManagerClient::get_latest_data(BusClient *client_param,
 108                                         string device_id_param,
 109                                         int *err_flg) {
 110         BusMessage      *msg_req;
 111         BusMessage      *msg_rsp;
 112         Data            *ret_val;
 113         DataRange       *dr;
 114
 115         msg_rsp = NULL;
 116         ret_val = NULL;
 117         msg_req = new BusMessage(MSG_TYPE_ID__GET_LATEST_DATA);
 118         msg_req->add_string_parameter(REQ__GET_LATEST_DATA__ID, device_id_param.c_str());
 119         client_param->send_message_and_wait_response(msg_req, &msg_rsp);
 120         dr      = parse_device_data_msg(msg_rsp, err_flg);
 121         ret_val = dr->get_first();
 122         delete(dr);
 123         delete(msg_req);
 124         delete(msg_rsp);
 125
 126         return ret_val;
 127 }
 128
 129 list<Device *> *DeviceManagerClient::parse_device_list_msg(BusMessage *msg_param,
 130                                                         int *err_flg) {
 131         int                             ii;
 132         long                            count;
 133         ostringstream                   key;
 134         string                          id;
 135         string                          name;
 136         string                          type;
 137         string                          datastr;
 138         EnumDeviceLifeCycleStatus       state;
 139         int                             state_i;
 140         Device                          *dev;
 141         Data                            *data;
 142         list<Device *>                  *ret_val;
 143
 144         count   = msg_param->get_long_parameter(RSP__DEVICE_LIST__DEVICE_COUNT, err_flg);
 145         log_debug("device count: %ld\n", count);
 146         ret_val = new list<Device *>;
 147         if (*err_flg == PLP_OK) {
 148                 for (ii = 0; ii < count; ii++) {
 149                         key.str("");
 150                         key << RSP__DEVICE_LIST__ID << ii;
 151                         id      = msg_param->get_string_parameter(key.str(), err_flg);
 152                         if (*err_flg != PLP_OK) {
 153                                 log_error("Failed to parse device id.\n");
 154                                 break;
 155                         }
 156
 157                         key.str("");
 158                         key << RSP__DEVICE_LIST__NAME << ii;
 159                         name    = msg_param->get_string_parameter(key.str(), err_flg);
 160                         if (*err_flg != PLP_OK) {
 161                                 log_error("Failed to parse name for the device: %s\n", id.c_str());
 162                                 break;
 163                         }
 164
 165                         key.str("");
 166                         key << RSP__DEVICE_LIST__TYPE << ii;
 167                         type    = msg_param->get_string_parameter(key.str(), err_flg);
 168                         if (*err_flg != PLP_OK) {
 169                                 log_error("Failed to parse type for the device: %s\n", id.c_str());
 170                                 break;
 171                         }
 172
 173                         key.str("");
 174                         key << RSP__DEVICE_LIST__LF_STATE << ii;
 175                         state_i = msg_param->get_int_parameter(key.str(), err_flg);
 176                         if (*err_flg != PLP_OK) {
 177                                 log_error("Failed to parse life cycle state for the device: %s\n", id.c_str());
 178                                 break;
 179                         }
 180                         state   = (EnumDeviceLifeCycleStatus)state_i;
 181
 182                         key.str("");
 183                         key << RSP__DEVICE_LIST__DATA << ii;
 184                         datastr = msg_param->get_string_parameter(key.str(), err_flg);
 185                         if (*err_flg == PLP_OK) {
 186                                 data    = Data::parse_string(datastr);
 187                                 if (data == NULL) {
 188                                         log_error("Failed to parse data items for the device: %s\n", id.c_str());
 189                                         *err_flg = PLP_ERR;
 190                                         break;
 191                                 }
 192                         }
 193                         else {
 194                                 log_error("No data available for the device: %s\n", id.c_str());
 195                                 data    = new Data(0);
 196                         }
 197                         dev     = new DeviceData(id, type, name, state, data);
 198                         ret_val->push_back(dev);
 199                 }
 200         }
 201         return ret_val;
 202 }