// Execute a signed call to the Yelp service.
OAuthService service = new ServiceBuilder().provider(YelpApi2.class).apiKey(CONSUMER_KEY).apiSecret(CONSUMER_SECRET).build();
Token accessToken = new Token(TOKEN, TOKEN_SECRET);
OAuthRequest request = new OAuthRequest(Verb.GET, "http://api.yelp.com/v2/search");
request.addQuerystringParameter("location", city);
//request.addQuerystringParameter("category", "restaurants");
request.addQuerystringParameter("term", searchTerm);
request.addQuerystringParameter("limit", "20");
service.signRequest(accessToken, request);