public Collection<Workspace> findByTags(String[] filter) {
assert filter != null;
Collection<Workspace> result;
if (filter.length == 0) {
result = workspaceRepository.findAll();
} else {
result = new ArrayList<Workspace>();
for (String tag : filter) {
if (result.isEmpty()) {
result = workspaceRepository.findByTagName(tag);
} else {
result.retainAll(workspaceRepository.findByTagName(tag));
}
}
}
assert result != null;
return result;
}
public List<Workspace> findAll() {
return workspaceRepository.findAll();
}