private Map<String, String> getParameters(PatternBinding binding, String requestUri) {
if (binding.getParameterNames().isEmpty()) {
return Collections.EMPTY_MAP;
}
Map<String, String> parameters = new HashMap<>();
List<String> parameterNames = binding.getParameterNames();
Matcher matcher = binding.getPattern().matcher(requestUri);
matcher.matches();
int groupCount = matcher.groupCount();
if (groupCount > 0) {
for (int i = 0; i < parameterNames.size(); i++) {
parameters.put(parameterNames.get(i), matcher.group(i + 1));
}
}
return parameters;
}
@Override
public List<RouteMatch> findRoutes(String requestUri, String requestMethod) {
log.trace("Finding route matches for {} '{}'", requestMethod, requestUri);
List<RouteMatch> routeMatches = new ArrayList<>();
List<PatternBinding> bindings = getBindings(requestMethod);
for (Route route : routes) { // to preserve the routes order
for (PatternBinding binding : bindings) {
if (route.equals(binding.getRoute())
&& binding.getPattern().matcher(requestUri).matches()) {
// TODO improve (it's possible to have the same uriPattern for many routes => same
// parameters)
routeMatches.add(new RouteMatch(route, getParameters(binding, requestUri)));
break;
}
}
}
log.debug("Found {} route matches for {} '{}'", routeMatches.size(), requestMethod, requestUri);
return routeMatches;
}