int M2XStreamClient::readLocation(location_read_callback callback,
void* context) {
const int BUF_LEN = 40;
char buf[BUF_LEN];
int length = readContentLength();
if (length < 0) {
close();
return length;
}
int index = skipHttpHeader();
if (index != E_OK) {
close();
return index;
}
index = 0;
location_parsing_context_state state;
state.state = state.index = 0;
state.callback = callback;
state.context = context;
jsonlite_parser_callbacks cbs = jsonlite_default_callbacks;
cbs.key_found = on_location_key_found;
cbs.string_found = on_location_string_found;
cbs.context.client_state = &state;
jsonlite_parser p = jsonlite_parser_init(jsonlite_parser_estimate_size(5));
jsonlite_parser_set_callback(p, &cbs);
jsonlite_result result = jsonlite_result_unknown;
while (index < length) {
int i = 0;
#ifdef DEBUG
printf("Received Data: ");
#endif
while ((i < BUF_LEN) && _client->available()) {
buf[i++] = _client->read();
#ifdef DEBUG
printf("%c", buf[i - 1]);
#endif
}
#ifdef DEBUG
printf("\n");
#endif
if ((!_client->connected()) &&
(!_client->available()) &&
((index + i) < length)) {
jsonlite_parser_release(p);
close();
return E_NOCONNECTION;
}
result = jsonlite_parser_tokenize(p, buf, i);
if ((result != jsonlite_result_ok) &&
(result != jsonlite_result_end_of_stream)) {
jsonlite_parser_release(p);
close();
return E_JSON_INVALID;
}
index += i;
}
jsonlite_parser_release(p);
close();
return (result == jsonlite_result_ok) ? (E_OK) : (E_JSON_INVALID);
}
int main()
{
setbuf(stdout, NULL); // no buffering for this filehandle
char json[1024];
int content_length;
int response_code;
char buf[1024];
float amb_temp;
setupEthernet();
// set time
lcd.printf("Reading Time... ");
ntp.setTime("time-c.nist.gov");
lcd.printf("Time set");
while(1) { // Loop
char streamName[] = "amb-temp"; // Set value for stream you are using
// GET Stream value
response_code = getStream(streamName, json);
content_length = readContentLength(json);
pc.printf("GET Stream\r\nResponse: %d\r\nContent Length: %d\r\njson: %s\r\n\r\n", response_code, content_length, json);
Thread::wait(5000);
/////
// PUT value to Strem
amb_temp = tmp.read();
sprintf(json, "{\"value\":\"%0.2f\"}", amb_temp);
response_code = putStream(streamName, json);
content_length = readContentLength(json);
pc.printf("PUT Stream\r\nResponse: %d\r\nContent Length: %d\r\njson: %s\r\n\r\n", response_code, content_length, json);
Thread::wait(5000);
//////
// POST value(s) to Stream
time_t seconds;
seconds = time(NULL); // get current time from mbed RTC
strftime(buf,40, "%Y-%m-%dT%H:%M:%S%z", localtime(&seconds));
amb_temp = tmp.read();
sprintf(json, "{ \"values\": [ {\"at\": \"%s\", \"value\":\"%0.2f\"} ] }", buf, amb_temp);
response_code = postStream(streamName, json);
content_length = readContentLength(json);
pc.printf("POST Stream\r\nResponse: %d\r\nContent Length: %d\r\njson: %s\r\n\r\n", response_code, content_length, json);
Thread::wait(5000);
///////
// PUT Location to Feed
sprintf(json, "{ \"name\": \"%s\", \"latitude\": \"%0.8f\", \"longitude\": \"%0.8f\", \"elevation\": \"%0.2f\" }", LOC_NAME, LOC_LAT, LOC_LONG, LOC_ELEV);
response_code = putLocation(json);
content_length = readContentLength(json);
pc.printf("PUT Location\r\nResponse: %d\r\nContent Length: %d\r\njson: %s\r\n\r\n", response_code, content_length, json);
Thread::wait(5000);
///////
// GET Location of Feed
response_code = getLocation(json);
content_length = readContentLength(json);
pc.printf("GET Location\r\nResponse: %d\r\nContent Length: %d\r\njson: %s\r\n\r\n", response_code, content_length, json);
Thread::wait(5000);
}
eth.disconnect();
while(1) {}
}