OkHttpClient - Real request and response headers log

OkHttpHelper

public class OkHttpHelper {
    public static final String TAG = "OkHttpHelper";
    public static final boolean SHOW_NETWORK_LOGS = true;

    public static OkHttpClient getOkHttpClient() {
        int cacheSize = 10 * 1024 * 1024; // 10 MB
        Cache cache = new Cache(getCacheDir(), cacheSize);

        return new OkHttpClient.Builder()
                .addInterceptor(applicationInterceptor)
                .addNetworkInterceptor(networkInterceptor)
                .cache(cache)
                .build();
    }
    
    private static File getCacheDir() {
        return new File(Contextor.getInstance().getContext().getCacheDir(), "http");
    }

    private static final Interceptor applicationInterceptor = new Interceptor() {
        @SuppressLint("DefaultLocale")
        @Override
        public Response intercept(@NonNull Interceptor.Chain chain) throws IOException {
            Request request = chain.request();

            long t1 = System.nanoTime();
            Response response = chain.proceed(request);
            long t2 = System.nanoTime();

            if (SHOW_NETWORK_LOGS) {
                if (response.isSuccessful() && response.networkResponse() != null) {
                    Log.i(TAG, String.format("%s - %s => Received networkResponse for %s in %.1fms%n%s",
                            response.networkResponse().code(),
                            response.networkResponse().message(),
                            response.networkResponse().request().url(),
                            (t2 - t1) / 1e6d,
                            response.networkResponse().headers()));
                } else {
                    Log.e(TAG, "response.isSuccessful() false or response.networkResponse() == null");
                }
            }
            return response;
        }
    };

    private static final Interceptor networkInterceptor = new Interceptor() {
        @Override
        public Response intercept(@NonNull Chain chain) throws IOException {
            if (SHOW_NETWORK_LOGS) {
                Log.i(TAG, String.format("Sending request %s Headers: %n%s", chain.request().url(), chain.request().headers()));
            }
            return chain.proceed(chain.request());
        }
    };
}