Volley Request with JSON Parsing using Jackson

JacksonRequest.java

/**
 * Volley Request for passing JSON string with Jackson
 * 
 * @TODO
 * - Extend this class
 * 
 * saggaf@area54labs.net
 */
public class JacksonRequest<T> extends Request<T> {
    private final Class<T> mClass;
    private final Response.Listener<T> mListener;
    private final HashMap<String, String> mParams;

    private final ObjectMapper jacksonMapper = new ObjectMapper();

    public JacksonRequest(Class<T> cls, int method, HashMap<String, String> params, String url, Response.Listener listener, final FailureListener errorListener) {
        super(method, url, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                int code;
                NetworkResponse net = error.networkResponse;

                if (net != null) {
                    code = net.statusCode;
                } else {
                    if (error instanceof TimeoutError) {
                        code = Failure.TIMEOUT;
                    } else if (error instanceof ParseError) {
                        code = Failure.PARSE;
                    } else if (error instanceof NoConnectionError) {
                        code = Failure.NO_CONNECTION;
                    } else {
                        code = Failure.UNKNOWN;
                    }
                }

                errorListener.onRequestFailure(code, error.getMessage());
            }
        });

        mClass = cls;
        mListener = listener;
        mParams = params;
    }

    @Override
    protected Map<String, String> getParams() throws AuthFailureError {
        return mParams;
    }

    @Override
    protected Response<T> parseNetworkResponse(NetworkResponse response) {
        try {
            String json = new String(response.data,
                    HttpHeaderParser.parseCharset(response.headers));
            return Response.success(jacksonMapper.readValue(json, mClass),
                    HttpHeaderParser.parseCacheHeaders(response));
        } catch (UnsupportedEncodingException e) {
            return Response.error(new ParseError(e));
        } catch (JsonMappingException e) {
            return Response.error(new ParseError(e));
        } catch (JsonParseException e) {
            return Response.error(new ParseError(e));
        } catch (IOException e) {
            return Response.error(new ParseError(e));
        }
    }

    @Override
    protected void deliverResponse(T response) {
        mListener.onResponse(response);
    }

    public interface FailureListener {
        void onRequestFailure(int code, String message);
    }

    public static class Failure {
        public static final int UNKNOWN = 0;
        public static final int NO_CONNECTION = 1;
        public static final int TIMEOUT = 2;
        public static final int PARSE = 3;
    }
}