public void search(
String searchTerm, Set<Integer> categories, Set<String> languages, String sortBy) {
if (searcher == null) {
System.err.println("Searching before searcher was initialized.");
return;
}
// fetch from cache if searchterm is null
if (searchTerm == null) searchTerm = lastSearchTerm;
lastCategories = categories;
lastLanguages = languages;
lastSearchTerm = searchTerm;
lastSortBy = sortBy;
try {
lastResults = searcher.search(searchTerm, categories, languages);
lastResults = sortResults(lastResults, sortBy);
for (SearcherListener listener : listListeners) {
listener.onSearch(lastResults);
}
} catch (ParseException e) {
Alert.alert(MessageType.WARNING, "The search string is not valid.", window);
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
