Hi Chris, Honestly, I can't say much about the most efficient way to read this type of data in Java, but if you're bypassing the whole json-decoding step and just manipulating the returned text using string operations, that's probably as *fast* as it needs to be.
However, most of the time you could reasonably decode the JSON structure using a JSON parser - I'm sure if you search a bit, you'll find a decent one to use for Java. That would make finding the right field in the response a bit simpler. If you want a library which handles error cases and outputs structured data, I'd suggest checking out the Java client library: http://code.google.com/p/opensocial-java-client/ ~Arne On Fri, Jul 31, 2009 at 11:38 AM, Chris <christoph.wor...@gmail.com> wrote: > > Thanks for the quick response, Arne. I have done as you suggested, > using the REST API and I was able to get the Viewer Id and Username. > However, I think I am not extracting the JSON data in the most > efficient manner. I'm using a URLConnection with a BufferedReader, > and then splitting the string into substrings delimited by the "- > character. My code follows: > > > public void doGet(HttpServletRequest req, HttpServletResponse > resp) > throws IOException { > > session = req.getSession(true); > > String viewerId = ""; > String userName = ""; > Logging thisLog; > String cookieName = "fcauth" + "15569016775267298719"; > Cookie cookies [] = req.getCookies(); > > Cookie authCookie = null; > > if (cookies != null) { > for (int i=0; i<cookies.length; i++ ) { > if (cookies[i].getName().equals(cookieName)) > { > authCookie = cookies[i]; > > String cookieStringValue = > authCookie.getValue(); > session.setAttribute("fcauth_token", > cookieStringValue); > String restString = " > http://www.google.com/friendconnect/api/ > people/@me/@self?fcauth=" + cookieStringValue; > String inputLine = ""; > > URL restUrl = new URL(restString); > URLConnection restCon = > restUrl.openConnection(); > BufferedReader restRead = new > BufferedReader( > new > InputStreamReader(restCon.getInputStream()));; > > try { > inputLine = > restRead.readLine(); > String delim = "\""; > String[] tokens = > inputLine.split(delim); > viewerId = tokens[5]; > userName = > tokens[tokens.length - 2]; > > thisLog = new Logging("New > Member: " + userName + " " + > viewerId, true); > } catch (Exception e) { > // > } > > break; > } > } > } > > > Is there a more efficient way of extracting the JSON data? > > Thanks again for the help, > Chris > > > > On Jul 31, 3:29 am, Arne Roomann-Kurrik <api.kur...@google.com> wrote: > > Hi Chris, > > > > Since you're using the fcauth token, there's an implicit ID number > > for the viewer - essentially, it means you can use "@me" for the value > > of viewerid and a valid Person should be returned. > > > > ~Arne > > > > On Jul 30, 11:20 pm, Chris <christoph.wor...@gmail.com> wrote: > > > > > Hello, > > > > > I'm trying to hook GFC/OpenSocial into my AppEngine Java website, and > > > I'm having trouble getting profile information to the server. I > > > haven't been able to find an AppEngine example in Java that I could > > > understand, which speaks not to poor example code, but to the fact > > > that I'm a bit clueless. > > > > > Here's what I'm trying to do: When a user logs into my website using > > > OpenSocial, I would like to take the display name and id and store it > > > on the AppEngine server. That way I have a server-side list of all my > > > users. > > > > > So I have this snippet of code on my login screen: > > > > > <!-- Load the Google AJAX API Loader --> > > > <script type="text/javascript" src=" > http://www.google.com/jsapi";></ > > > script> > > > > > <!-- Load the Google Friend Connect javascript > library. --> > > > <script type="text/javascript"> > > > google.load('friendconnect', '0.8'); > > > </script> > > > > > <!-- Initialize the Google Friend Connect > OpenSocial API. --> > > > <script type="text/javascript"> > > > google.friendconnect.container.setParentUrl('/' > /* location of > > > rpc_relay.html and canvas.html */); > > > > google.friendconnect.container.loadOpenSocialApi({ > > > site: '15569016775267298719', > > > onload: function(securityToken) { > > > if (!window.timesloaded) { > > > window.timesloaded = 1; > > > } else { > > > window.timesloaded++; > > > } > > > if (window.timesloaded > 1) { > > > window.top.location.href = > "/auth/"; > > > } > > > } > > > }); > > > </script> > > > > > When the user logs in, it calls a servlet called "Login.java", which > > > contains the following: > > > > > public class Login extends HttpServlet { > > > private HttpSession session = null; > > > > > public void doGet(HttpServletRequest req, HttpServletResponse > > > resp) > > > throws IOException { > > > > > session = req.getSession(true); > > > > > String cookieName = "fcauth" + "15569016775267298719"; > > > Cookie cookies [] = req.getCookies(); > > > > > Cookie authCookie = null; > > > > > if (cookies != null) { > > > for (int i=0; i<cookies.length; i++ ) { > > > if > (cookies[i].getName().equals(cookieName)) { > > > authCookie = cookies[i]; > > > > > String cookieStringValue = > authCookie.getValue(); > > > > session.setAttribute("fcauth_token", cookieStringValue); > > > break; > > > } > > > } > > > } > > > > > getProfileData(resp); > > > resp.sendRedirect("/"); > > > } > > > > > The servlet finds the fcauth cookie, sends the info to a function that > > > gets the profile data, and the redirects back to the homepage. The > > > problem lies in the getProfileData function because I don't quite > > > understand how to get the viewer's id number and display name. Here > > > is the function where that should happen: > > > > > public void getProfileData(HttpServletResponse resp) throws > > > IOException { > > > > > Logging thisLog; > > > > > String consumerKey = "*********************"; > // Found this on the > > > GFC page > > > String secretKey = "*********************"; > // Also found this on > > > the GFC page > > > String viewerid = ???????? > // Not sure how to get the viewer's > > > id > > > > > OpenSocialProvider provider = > OpenSocialProvider.valueOf > > > ("FRIENDCONNECT"); > > > OpenSocialClient client = new > OpenSocialClient(provider); > > > > > > client.setProperty(OpenSocialClient.Property.CONSUMER_SECRET, > > > secretKey); > > > > client.setProperty(OpenSocialClient.Property.CONSUMER_KEY, > > > consumerKey); > > > client.setProperty(OpenSocialClient.Property.VIEWER_ID, > viewerid); > > > > > try { > > > OpenSocialPerson viewer = client.fetchPerson(); > > > thisLog = new Logging("New Member: " + > viewer.getDisplayName() + " > > > " + viewer.getId()); > > > > > // Insert code here to make persistent on the > server > > > > > } catch (Exception e) { > > > > > } > > > } > > > > > } > > > > > I think if I could get the viewer id everything else should work. But > > > it is unclear how to do that. > > > > > Thanks for any help you can give, > > > Chris > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "OpenSocial Application Development" group. To post to this group, send email to opensocial-api@googlegroups.com To unsubscribe from this group, send email to opensocial-api+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/opensocial-api?hl=en -~----------~----~----~----~------~----~------~--~---
