MetricManagerAdvancedCAPI.c

A more advanced metric that updates the history of a metric. Usually this would be a metric from an external data source, e.g. e-mail or Facebook messages.

#include <libusermetricsinput/usermetricsinput.h>
int main(int argc, char *argv[]) {
// We start with a manager object.
// This can be used as a long-lived object to reduce DBus traffic.
UserMetricsInputMetricManager metricManager =
usermetricsinput_metricmanager_new();
// Create a parameters object
UserMetricsInputMetricParameters parameters =
usermetricsinput_metricparameters_new("twitter");
// Set its attributes
usermetricsinput_metricparameters_set_format_string(parameters,
"<b>%1</b> tweets received today");
usermetricsinput_metricparameters_set_empty_data_string(parameters,
"No tweets today");
usermetricsinput_metricparameters_set_text_domain(parameters,
"myapptextdomain");
// You can hold onto this shared object for as long as you want.
// It will be destroyed when the manager is destroyed.
UserMetricsInputMetric metric = usermetricsinput_metricmanager_add(
metricManager, parameters);
// Remember to free the parameters object after use
usermetricsinput_metricparameters_delete(parameters);
// The update is sent when the update object is destroyed.
// Providing a blank username string will use the current
// user according to the USER environment variable.
UserMetricsInputMetricUpdate metricUpdate = usermetricsinput_metric_update(
metric, "username");
// The data is ordered starting from today, going backwards in time
usermetricsinput_metricupdate_add_data(metricUpdate, 1.0);
usermetricsinput_metricupdate_add_data(metricUpdate, 0.1);
usermetricsinput_metricupdate_add_data(metricUpdate, -5.0);
// Delete and dispatch the metri update
usermetricsinput_metricupdate_delete(metricUpdate);
// Free the manager when done with it
usermetricsinput_metricmanager_delete(metricManager);
return 0;
}