[ https://jira.fiware.org/browse/HELP-15359?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Fernando Lopez reassigned HELP-15359:
-------------------------------------
Assignee: Jose Gato Luis
Description:
Created question in FIWARE Q/A platform on 24-01-2019 at 14:01
{color: red}Please, ANSWER this question AT{color} https://stackoverflow.com/questions/54347716/temperature-sensor-lwm2m-objects-3303-created
+Question:+
Temperature Sensor: LWM2M objects 3303 created
+Description:+
Working with wakaama client implementation of the LWM2M and Fiware Orion (of course using IoTAgent). I already have raspberry Pi sensor collecting temperature and stores in SQLite DB.
The scenario I want implement is to have the IoTAgent observes the wakaama LWM2M client (I mean client send the data to the IoTAgent.
I already created the 3303 object in wakaama/example/client/object_temperature.c then build, and I can confirm the client connects to the IoTAgent as far IoT logs (see below).
time=2019-01-24T12:51:15.270Z | lvl=DEBUG | corr=3e578c67-f589-4348-afaf-225509e9c787 | trans=3e578c67-f589-4348-afaf-225509e9c787 | op=IoTAgentNGSI.MongoDBDeviceRegister | srv=n/a | subsrv=n/a | msg=Looking for device with id [raspiSensorTV]. | comp=IoTAgent
time=2019-01-24T12:51:15.299Z | lvl=DEBUG | corr=n/a | trans=n/a | op=LWM2MLib.Registration | msg=Registration request ended successfully
time=2019-01-24T12:51:15.349Z | lvl=DEBUG | corr=n/a | trans=n/a | op=LWM2MLib.InformationReporting | msg=Observing value from resource /3303/0/0 in device [1]
But unfortunately, no are measure is sent by the client. Is anything wrong with my object_temperature.c? Code reproduced:
#include "liblwm2m.h"
#include "lwm2mclient.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <time.h>
#include <sqlite3.h>
//Resource Id's
#define RES_SENSOR_VALUE 5700
#define RES_SENSOR_UNITS 5701
typedef struct _prv_instance_
{
struct _prv_instance_ * next;
uint16_t shortID;
double temp;
char unit[10];
} prv_instance_t;
static uint8_t prv_temperature_read(uint16_t instanceId,
int * numDataP,
lwm2m_data_t ** dataArrayP,
lwm2m_object_t * objectP)
{
prv_instance_t * targetP;
int i;
sqlite3 *db;
sqlite3_stmt *res;
char temperature_val[30];
targetP = (prv_instance_t *)lwm2m_list_find(objectP->instanceList, instanceId);
if (NULL == targetP) return COAP_404_NOT_FOUND;
fprintf(stderr, "----------------- Entering in prv_temperature ----------------\n");
// connect to the backend
int rc = sqlite3_open("../../urbansense.sqlite3", &db);
if (rc != SQLITE_OK) {
fprintf(stderr, "Cannot open database: %s\n", sqlite3_errmsg(db));
sqlite3_close(db);
return 1;
}
else {
fprintf(stderr, "Connection successful.\n" );
}
rc = sqlite3_prepare_v2(db, "SELECT temperature_data FROM basic_environment ORDER BY ID DESC LIMIT 1", -1, &res, 0);
if (rc != SQLITE_OK) {
fprintf(stderr, "Failed to fetch data: %s\n", sqlite3_errmsg(db));
sqlite3_close(db);
return 1;
}
rc = sqlite3_step(res);
if (rc == SQLITE_ROW) {
sprintf(temperature_val, "%s", sqlite3_column_text(res, 0));
fprintf(stdout, "Temperature value ==== : %s\n", sqlite3_column_text(res, 0));
sqlite3_finalize(res);
sqlite3_close(db);
}
if(*numDataP == 0)
{
*dataArrayP = lwm2m_data_new(1);
if (*dataArrayP == NULL) return COAP_500_INTERNAL_SERVER_ERROR;
*numDataP = 1;
(*dataArrayP)[0].id = RES_SENSOR_VALUE;
(*dataArrayP)[1].id = RES_SENSOR_UNITS;
}
for (i = 0; i < *numDataP; i++)
{
switch((*dataArrayP)[i].id)
{
case RES_SENSOR_VALUE:
lwm2m_data_encode_float(targetP->temp, *dataArrayP +1);
break;
case RES_SENSOR_UNITS:
lwm2m_data_encode_string(targetP->unit, *dataArrayP +1);
break;
default:
return COAP_404_NOT_FOUND;
}
}
return COAP_205_CONTENT;
}
lwm2m_object_t * get_object_temperature()
{
/*
* The get_object_temperature function create the object itself and return a pointer to the structure that represent it.
*/
lwm2m_object_t * temperatureObj;
temperatureObj = (lwm2m_object_t *)lwm2m_malloc(sizeof(lwm2m_object_t));
if (NULL != temperatureObj)
{
memset(temperatureObj, 0, sizeof(lwm2m_object_t));
/*
* Assigns it's unique ID 3303
*/
temperatureObj->objID = LWM2M_TEMPERATURE_OBJECT_ID;
/*
* and its unique instance
*
*/
temperatureObj->instanceList = (lwm2m_list_t *)lwm2m_malloc(sizeof(lwm2m_list_t));
if (NULL != temperatureObj->instanceList)
{
memset(temperatureObj->instanceList, 0, sizeof(lwm2m_list_t));
}
else
{
lwm2m_free(temperatureObj);
return NULL;
}
temperatureObj->readFunc = prv_temperature_read;
temperatureObj->userData = lwm2m_malloc(sizeof(prv_instance_t));
}
return temperatureObj;
}
void free_object_temperature(lwm2m_object_t * objectP)
{
if (NULL != objectP->userData)
{
lwm2m_free(objectP->userData);
objectP->instanceList = NULL;
}
if(NULL != objectP->instanceList)
{
lwm2m_free(objectP->instanceList);
objectP->instanceList = NULL;
}
lwm2m_free(objectP);
}
was:
Created question in FIWARE Q/A platform on 24-01-2019 at 14:01
{color: red}Please, ANSWER this question AT{color} https://stackoverflow.com/questions/54347716/temperature-sensor-lwm2m-objects-3303-created
+Question:+
Temperature Sensor: LWM2M objects 3303 created
+Description:+
Working with wakaama client implementation of the LWM2M and Fiware Orion (of course using IoTAgent). I already have raspberry Pi sensor collecting temperature and stores in SQLite DB.
The scenario I want implement is to have the IoTAgent observes the wakaama LWM2M client (I mean client send the data to the IoTAgent.
I already created the 3303 object in wakaama/example/client/object_temperature.c then build, and I can confirm the client connects to the IoTAgent as far IoT logs (see below).
time=2019-01-24T12:51:15.270Z | lvl=DEBUG | corr=3e578c67-f589-4348-afaf-225509e9c787 | trans=3e578c67-f589-4348-afaf-225509e9c787 | op=IoTAgentNGSI.MongoDBDeviceRegister | srv=n/a | subsrv=n/a | msg=Looking for device with id [raspiSensorTV]. | comp=IoTAgent
time=2019-01-24T12:51:15.299Z | lvl=DEBUG | corr=n/a | trans=n/a | op=LWM2MLib.Registration | msg=Registration request ended successfully
time=2019-01-24T12:51:15.349Z | lvl=DEBUG | corr=n/a | trans=n/a | op=LWM2MLib.InformationReporting | msg=Observing value from resource /3303/0/0 in device [1]
But unfortunately, no are measure is sent by the client. Is anything wrong with my object_temperature.c? Code reproduced:
#include "liblwm2m.h"
#include "lwm2mclient.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <time.h>
#include <sqlite3.h>
//Resource Id's
#define RES_SENSOR_VALUE 5700
#define RES_SENSOR_UNITS 5701
typedef struct _prv_instance_
{
struct _prv_instance_ * next;
uint16_t shortID;
double temp;
char unit[10];
} prv_instance_t;
static uint8_t prv_temperature_read(uint16_t instanceId,
int * numDataP,
lwm2m_data_t ** dataArrayP,
lwm2m_object_t * objectP)
{
prv_instance_t * targetP;
int i;
sqlite3 *db;
sqlite3_stmt *res;
char temperature_val[30];
targetP = (prv_instance_t *)lwm2m_list_find(objectP->instanceList, instanceId);
if (NULL == targetP) return COAP_404_NOT_FOUND;
fprintf(stderr, "----------------- Entering in prv_temperature ----------------\n");
// connect to the backend
int rc = sqlite3_open("../../urbansense.sqlite3", &db);
if (rc != SQLITE_OK) {
fprintf(stderr, "Cannot open database: %s\n", sqlite3_errmsg(db));
sqlite3_close(db);
return 1;
}
else {
fprintf(stderr, "Connection successful.\n" );
}
rc = sqlite3_prepare_v2(db, "SELECT temperature_data FROM basic_environment ORDER BY ID DESC LIMIT 1", -1, &res, 0);
if (rc != SQLITE_OK) {
fprintf(stderr, "Failed to fetch data: %s\n", sqlite3_errmsg(db));
sqlite3_close(db);
return 1;
}
rc = sqlite3_step(res);
if (rc == SQLITE_ROW) {
sprintf(temperature_val, "%s", sqlite3_column_text(res, 0));
fprintf(stdout, "Temperature value ==== : %s\n", sqlite3_column_text(res, 0));
sqlite3_finalize(res);
sqlite3_close(db);
}
if(*numDataP == 0)
{
*dataArrayP = lwm2m_data_new(1);
if (*dataArrayP == NULL) return COAP_500_INTERNAL_SERVER_ERROR;
*numDataP = 1;
(*dataArrayP)[0].id = RES_SENSOR_VALUE;
(*dataArrayP)[1].id = RES_SENSOR_UNITS;
}
for (i = 0; i < *numDataP; i++)
{
switch((*dataArrayP)[i].id)
{
case RES_SENSOR_VALUE:
lwm2m_data_encode_float(targetP->temp, *dataArrayP +1);
break;
case RES_SENSOR_UNITS:
lwm2m_data_encode_string(targetP->unit, *dataArrayP +1);
break;
default:
return COAP_404_NOT_FOUND;
}
}
return COAP_205_CONTENT;
}
lwm2m_object_t * get_object_temperature()
{
/*
* The get_object_temperature function create the object itself and return a pointer to the structure that represent it.
*/
lwm2m_object_t * temperatureObj;
temperatureObj = (lwm2m_object_t *)lwm2m_malloc(sizeof(lwm2m_object_t));
if (NULL != temperatureObj)
{
memset(temperatureObj, 0, sizeof(lwm2m_object_t));
/*
* Assigns it's unique ID 3303
*/
temperatureObj->objID = LWM2M_TEMPERATURE_OBJECT_ID;
/*
* and its unique instance
*
*/
temperatureObj->instanceList = (lwm2m_list_t *)lwm2m_malloc(sizeof(lwm2m_list_t));
if (NULL != temperatureObj->instanceList)
{
memset(temperatureObj->instanceList, 0, sizeof(lwm2m_list_t));
}
else
{
lwm2m_free(temperatureObj);
return NULL;
}
temperatureObj->readFunc = prv_temperature_read;
temperatureObj->userData = lwm2m_malloc(sizeof(prv_instance_t));
}
return temperatureObj;
}
void free_object_temperature(lwm2m_object_t * objectP)
{
if (NULL != objectP->userData)
{
lwm2m_free(objectP->userData);
objectP->instanceList = NULL;
}
if(NULL != objectP->instanceList)
{
lwm2m_free(objectP->instanceList);
objectP->instanceList = NULL;
}
lwm2m_free(objectP);
}
HD-Enabler: IDAS
> [fiware-stackoverflow] Temperature Sensor: LWM2M objects 3303 created
> ---------------------------------------------------------------------
>
> Key: HELP-15359
> URL: https://jira.fiware.org/browse/HELP-15359
> Project: Help-Desk
> Issue Type: Monitor
> Components: FIWARE-TECH-HELP
> Reporter: Backlog Manager
> Assignee: Jose Gato Luis
> Labels: c++, fiware
>
> Created question in FIWARE Q/A platform on 24-01-2019 at 14:01
> {color: red}Please, ANSWER this question AT{color} https://stackoverflow.com/questions/54347716/temperature-sensor-lwm2m-objects-3303-created
> +Question:+
> Temperature Sensor: LWM2M objects 3303 created
> +Description:+
> Working with wakaama client implementation of the LWM2M and Fiware Orion (of course using IoTAgent). I already have raspberry Pi sensor collecting temperature and stores in SQLite DB.
> The scenario I want implement is to have the IoTAgent observes the wakaama LWM2M client (I mean client send the data to the IoTAgent.
> I already created the 3303 object in wakaama/example/client/object_temperature.c then build, and I can confirm the client connects to the IoTAgent as far IoT logs (see below).
> time=2019-01-24T12:51:15.270Z | lvl=DEBUG | corr=3e578c67-f589-4348-afaf-225509e9c787 | trans=3e578c67-f589-4348-afaf-225509e9c787 | op=IoTAgentNGSI.MongoDBDeviceRegister | srv=n/a | subsrv=n/a | msg=Looking for device with id [raspiSensorTV]. | comp=IoTAgent
> time=2019-01-24T12:51:15.299Z | lvl=DEBUG | corr=n/a | trans=n/a | op=LWM2MLib.Registration | msg=Registration request ended successfully
> time=2019-01-24T12:51:15.349Z | lvl=DEBUG | corr=n/a | trans=n/a | op=LWM2MLib.InformationReporting | msg=Observing value from resource /3303/0/0 in device [1]
> But unfortunately, no are measure is sent by the client. Is anything wrong with my object_temperature.c? Code reproduced:
> #include "liblwm2m.h"
> #include "lwm2mclient.h"
> #include <stdio.h>
> #include <stdlib.h>
> #include <string.h>
> #include <ctype.h>
> #include <time.h>
> #include <sqlite3.h>
> //Resource Id's
> #define RES_SENSOR_VALUE 5700
> #define RES_SENSOR_UNITS 5701
> typedef struct _prv_instance_
> {
> struct _prv_instance_ * next;
> uint16_t shortID;
> double temp;
> char unit[10];
> } prv_instance_t;
> static uint8_t prv_temperature_read(uint16_t instanceId,
> int * numDataP,
> lwm2m_data_t ** dataArrayP,
> lwm2m_object_t * objectP)
> {
> prv_instance_t * targetP;
> int i;
> sqlite3 *db;
> sqlite3_stmt *res;
> char temperature_val[30];
> targetP = (prv_instance_t *)lwm2m_list_find(objectP->instanceList, instanceId);
> if (NULL == targetP) return COAP_404_NOT_FOUND;
> fprintf(stderr, "----------------- Entering in prv_temperature ----------------\n");
> // connect to the backend
> int rc = sqlite3_open("../../urbansense.sqlite3", &db);
> if (rc != SQLITE_OK) {
> fprintf(stderr, "Cannot open database: %s\n", sqlite3_errmsg(db));
> sqlite3_close(db);
> return 1;
> }
> else {
> fprintf(stderr, "Connection successful.\n" );
> }
> rc = sqlite3_prepare_v2(db, "SELECT temperature_data FROM basic_environment ORDER BY ID DESC LIMIT 1", -1, &res, 0);
> if (rc != SQLITE_OK) {
> fprintf(stderr, "Failed to fetch data: %s\n", sqlite3_errmsg(db));
> sqlite3_close(db);
> return 1;
> }
> rc = sqlite3_step(res);
> if (rc == SQLITE_ROW) {
> sprintf(temperature_val, "%s", sqlite3_column_text(res, 0));
> fprintf(stdout, "Temperature value ==== : %s\n", sqlite3_column_text(res, 0));
> sqlite3_finalize(res);
> sqlite3_close(db);
> }
> if(*numDataP == 0)
> {
> *dataArrayP = lwm2m_data_new(1);
> if (*dataArrayP == NULL) return COAP_500_INTERNAL_SERVER_ERROR;
> *numDataP = 1;
> (*dataArrayP)[0].id = RES_SENSOR_VALUE;
> (*dataArrayP)[1].id = RES_SENSOR_UNITS;
> }
> for (i = 0; i < *numDataP; i++)
> {
> switch((*dataArrayP)[i].id)
> {
> case RES_SENSOR_VALUE:
> lwm2m_data_encode_float(targetP->temp, *dataArrayP +1);
> break;
> case RES_SENSOR_UNITS:
> lwm2m_data_encode_string(targetP->unit, *dataArrayP +1);
> break;
> default:
> return COAP_404_NOT_FOUND;
> }
> }
> return COAP_205_CONTENT;
> }
> lwm2m_object_t * get_object_temperature()
> {
> /*
> * The get_object_temperature function create the object itself and return a pointer to the structure that represent it.
> */
> lwm2m_object_t * temperatureObj;
> temperatureObj = (lwm2m_object_t *)lwm2m_malloc(sizeof(lwm2m_object_t));
> if (NULL != temperatureObj)
> {
> memset(temperatureObj, 0, sizeof(lwm2m_object_t));
> /*
> * Assigns it's unique ID 3303
> */
> temperatureObj->objID = LWM2M_TEMPERATURE_OBJECT_ID;
> /*
> * and its unique instance
> *
> */
> temperatureObj->instanceList = (lwm2m_list_t *)lwm2m_malloc(sizeof(lwm2m_list_t));
> if (NULL != temperatureObj->instanceList)
> {
> memset(temperatureObj->instanceList, 0, sizeof(lwm2m_list_t));
> }
> else
> {
> lwm2m_free(temperatureObj);
> return NULL;
> }
> temperatureObj->readFunc = prv_temperature_read;
> temperatureObj->userData = lwm2m_malloc(sizeof(prv_instance_t));
> }
> return temperatureObj;
> }
> void free_object_temperature(lwm2m_object_t * objectP)
> {
> if (NULL != objectP->userData)
> {
> lwm2m_free(objectP->userData);
> objectP->instanceList = NULL;
> }
> if(NULL != objectP->instanceList)
> {
> lwm2m_free(objectP->instanceList);
> objectP->instanceList = NULL;
> }
> lwm2m_free(objectP);
> }
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