I am new to Java / OOP and I'm concerned that I have a method which is doing far too much stuff - but I don't easily see how it can be shortened in a way which is not contrived / arbitrary.This is a server-side API method built using Google App Engine.Currently, the method (which is really just a template at this stage):Validates a user's Facebook OAuth token against Facebook's ownservers - this is all done behind the scenes in a FacebookHelperclass I have written. Catches any exceptions (most likely an    IOException) thrown during this validation process.Asks the user to    log in again if their token is invalid (if (authToken == null)).Else if authentication has been successful, tries to get the user    record from my database.If it doesn't exist, adds the user to the    database. (registerUserInDatabase).Responds with a personalised    welcome to the user - after having registered the user if they were    not already registered.Code:@ApiMethod(name = getUserData, path = get_user_data)public Bean getUserData(@Named(token) String token) {    Bean response = new Bean();    FacebookAuthToken authToken;    User user;    String userPersonalisedWelcome;    try {        authToken = ServerFacebookHelper.getAuthToken(token);    } catch (Exception e) {        response.setData(Exception occurred);        return response;    }    if (authToken == null) {        response.setData(Token invalid, please log in);        return response;    } else {        user = getUserFromDatabase(authToken);        if (user == null) {            user = registerUserInDatabase(authToken);            userPersonalisedWelcome = user.getPersonalisedWelcome;            response.setData(userPersonalisedWelcome);        } else {            response.setData(user.getPersonalisedWelcome);        }        return response;    }}Obviously there is already a huge amount of work being done outside this method, such as API calls and database reads/writes, but it still feels far too procedural and frankly dumb. At the same time, everything it encapsulates is required in order to service this getUserData API request - so perhaps I am overthinking here.
API method to validate Facebook OAuth token
java;api;google app engine;facebook;oauth