public Set<UserId> getUsers() {
List<String> ids = getListParameter(USER_ID);
if (ids.isEmpty()) {
if (token.getViewerId() != null) {
// Assume @me
ids = Lists.newArrayList(token.getViewerId());
} else {
throw new IllegalArgumentException("No userId provided and viewer not available");
}
}
Set<UserId> userIds = Sets.newLinkedHashSet();
for (String id : ids) {
userIds.add(UserId.fromJson(id));
}
return userIds;
}
public String getAppId() {
String appId = getParameter(APP_ID);
if (appId != null && appId.equals(APP_SUBSTITUTION_TOKEN)) {
return token.getAppId();
} else {
return appId;
}
}