Check operation result

read-result.java

// handles response from the Read MIFARE Data message
post(new Route(Constants.readBlockCallbackUrl) {
    @Override
    public Object handle(Request request, Response response) {
        JSONObject jsonParameters = (JSONObject) JSONValue.parse(request.body());
        String operationId = (String) jsonParameters.get("operationId");
        String sessionId = pendingOperations.get(operationId);
        pendingOperations.remove(operationId);
        int statusCode = ((Long)jsonParameters.get("statusCode")).intValue();
        if (statusCode != HTTP_OK)
        {
            handleFailure(sessionId);
        } else {
            // parse the counter value from the read block, increment
            // unless it is the first time the card is used, then initialize to one
            // store counter and checksum in the session state map
            JSONArray blocks = (JSONArray) jsonParameters.get("blocks");
            long counter = Utils.decodeCounter(blocks);
            sessionMap.get(sessionId).setCounter(counter);
            if (sessionMap.get(sessionId).isFirstTime()) {
                sessionMap.get(sessionId).setCounter(1);
                if (cardClient.writeCounterInCard(1, sessionId, pendingOperations) != HTTP_OK) handleFailure(sessionId);
            } else {
                counter ++;
                if (cardClient.writeCounterInCard(counter, sessionId, pendingOperations) != HTTP_OK) handleFailure(sessionId);
            }
        }
        response.status(HTTP_OK);
        return "";
    }
});