Retrofit Class Wrapper for Android

RestClient.java

package com.webninja.usjr.rest;


import com.squareup.okhttp.OkHttpClient;
import com.webninja.usjr.libs.AppConstants;


import retrofit.RequestInterceptor;
import retrofit.RestAdapter;
import retrofit.client.OkClient;

public class RestClient {

    private static ApiService REST_CLIENT;
    private static String SERVER_ROOT;

    private RestClient() {}
    public static ApiService get() {
        return get(AppConstants.SERVER_ROOT);
    }

    public static ApiService get(String root) {
        RestClient.SERVER_ROOT = root;
        setupRestClient();
        return REST_CLIENT;
    }

    private static void setupRestClient() {
        RequestInterceptor requestInterceptor = new RequestInterceptor() {
            @Override
            public void intercept(RequestFacade request) {
                request.addHeader("User-Agent", "Android-App");
                request.addHeader("mobile", "true");
            }
        };

        RestAdapter.Builder builder = new RestAdapter.Builder()
                .setEndpoint(RestClient.SERVER_ROOT)
                .setRequestInterceptor(requestInterceptor)
                .setClient(new OkClient(new OkHttpClient()))
                .setLogLevel(RestAdapter.LogLevel.FULL);

        RestAdapter restAdapter = builder.build();
        REST_CLIENT = restAdapter.create(ApiService.class);
    }


}