/**
* Use cursors to fetch upto jtwit.maxResults TODO More controlled paging??
*
* @param url API method to call
* @param screenName
* @param userId
* @return twitter-id numbers for friends/followers of screenName or userId Is affected by {@link
* #maxResults}
*/
private List<Number> getUserIDs(String url, String screenName, Long userId) {
Long cursor = -1L;
List<Number> ids = new ArrayList<Number>();
if (screenName != null && userId != null)
throw new IllegalArgumentException(
"cannot use both screen_name and user_id when fetching user_ids");
Map<String, String> vars = InternalUtils.asMap("screen_name", screenName, "user_id", userId);
while (cursor != 0 && !jtwit.enoughResults(ids)) {
vars.put("cursor", String.valueOf(cursor));
String json = http.getPage(url, vars, http.canAuthenticate());
try {
// it seems Twitter will occasionally return a raw array
JSONArray jarr;
if (json.charAt(0) == '[') {
jarr = new JSONArray(json);
cursor = 0L;
} else {
JSONObject jobj = new JSONObject(json);
jarr = (JSONArray) jobj.get("ids");
cursor = new Long(jobj.getString("next_cursor"));
}
for (int i = 0; i < jarr.length(); i++) {
ids.add(jarr.getLong(i));
}
if (jarr.length() == 0) {
// No more
break;
}
} catch (JSONException e) {
throw new TwitterException.Parsing(json, e);
}
}
return ids;
}
/**
* Low-level method for fetching e.g. your friends
*
* @param url
* @param screenName e.g. your screen-name
* @return
*/
private List<User> getUsers(String url, String screenName) {
Map<String, String> vars = InternalUtils.asMap("screen_name", screenName);
List<User> users = new ArrayList<User>();
Long cursor = -1L;
while (cursor != 0 && !jtwit.enoughResults(users)) {
vars.put("cursor", cursor.toString());
JSONObject jobj;
try {
jobj = new JSONObject(http.getPage(url, vars, http.canAuthenticate()));
users.addAll(User.getUsers(jobj.getString("users")));
cursor = new Long(jobj.getString("next_cursor"));
} catch (JSONException e) {
throw new TwitterException.Parsing(null, e);
}
}
return users;
}
