static {
Map<String, String> fakeData = new HashMap<>();
fakeData.put("http://www.weather.gov", "Weather forecast");
fakeData.put("http://www.espn.com", "Sports scores");
fakeData.put("http://www.marketwatch.com", "Stock market data");
fakeData.put("http://www.fandango.com", "Movie showtimes");
data = Collections.unmodifiableMap(fakeData);
}
/**
* Returns an unmodifiable map of all metrics and their names.
*
* @return an unmodifiable map of all metrics and their names
*/
public Map<MetricName, Metric> getAllMetrics() {
return Collections.unmodifiableMap(metrics);
}