/**
* Get the next page of resources
*
* @return true if more pages
* @throws TestpressException
*/
public boolean next() throws TestpressException {
boolean emptyPage = false;
try {
for (int i = 0; i < count && hasNext(); i++) {
Response<TestpressApiResponse<E>> retrofitResponse = getItems(page, -1);
List<E> resourcePage;
if (retrofitResponse.isSuccessful()) {
response = retrofitResponse.body();
resourcePage = response.getResults();
} else {
hasMore = false;
throw TestpressException.httpError(retrofitResponse);
}
emptyPage = resourcePage.isEmpty();
if (emptyPage) break;
for (E resource : resourcePage) {
resource = register(resource);
if (resource == null) continue;
resources.put(getId(resource), resource);
}
page++;
}
// Set count value to 1 if first load request made after call clear()
if (count > 1) {
count = 1;
}
} catch (Exception e) {
hasMore = false;
if (e instanceof IOException) {
throw TestpressException.networkError((IOException) e);
} else {
throw TestpressException.unexpectedError(e);
}
}
hasMore = hasNext() && !emptyPage;
return hasMore;
}
public boolean hasNext() {
return response == null || response.getNext() != null;
}