/**
* Creates a unique entry name string for a request. It consists of the method name and all the
* parameter names and values concatenated in alphabetical order. It is used to identify cache
* entries in the backend storage. If <code>hashCacheEntryNames</code> is set to <code>true</code>
* this method will return a MD5 hash of the generated name.
*
* @param method The request method
* @param params The request parameters
* @return a cache entry name
*/
public static String createCacheEntryName(String method, Map<String, String> params) {
if (!(params instanceof SortedMap)) {
params = new TreeMap<String, String>(params);
}
StringBuilder b = new StringBuilder(100);
b.append(method.toLowerCase(Locale.US));
b.append('.');
for (Map.Entry<String, String> e : params.entrySet()) {
b.append(e.getKey());
b.append(e.getValue());
}
String name = b.toString();
if (hashCacheEntryNames) return StringUtilities.md5(name);
return StringUtilities.cleanUp(name);
}
public static Chart<Track> getMetroUniqueTrackChart(
String country, String metro, String start, String end, String apiKey) {
return Chart.getChart(
"geo.getMetroUniqueTrackChart",
"track",
StringUtilities.map("country", country, "metro", metro),
start,
end,
-1,
apiKey);
}
public static Chart<Artist> getMetroHypeArtistChart(
String country, String metro, String start, String end, String apiKey) {
return Chart.getChart(
"geo.getMetroHypeArtistChart",
"artist",
StringUtilities.map("country", country, "metro", metro),
start,
end,
-1,
apiKey);
}