/*
* this fetches the tour from the database or network
* if the tour db cache has timed out it will try to cache from network
* but if that fails revert to using the version cached in the DB
*/
private static void fetchTourHelper(final Context context, final Handler uiHandler) {
final TourDB tourDB = TourDB.getInstance(context);
if (tourDB.tourDetailsCached(TOUR_GUID, true)) {
List<TourHeader> tourHeaders = tourDB.retrieveTourHeaders();
sTour = new Tour(tourHeaders.get(0));
tourDB.populateTourDetails(sTour);
MobileWebApi.sendSuccessMessage(uiHandler);
return;
}
// check if stale version of tour exists in db
if (tourDB.tourDetailsCached(TOUR_GUID, false)) {
// stale version exists, so check if stale version is recent enough
MobileWebApi webApi = new MobileWebApi(false, false, null, context, null);
HashMap<String, String> query = new HashMap<String, String>();
query.put("module", "tours");
query.put("command", "toursList");
webApi.requestJSONArray(
query,
new JSONArrayResponseListener(new TourRefreshErrorListener(tourDB, uiHandler), null) {
@Override
public void onResponse(JSONArray array) throws ServerResponseException, JSONException {
Long lastModified = null;
for (int i = 0; i < array.length(); i++) {
JSONObject tourSummary = array.getJSONObject(i);
if (tourSummary.getString("id").equals(TOUR_GUID)) {
lastModified = tourSummary.getLong("last-modified") * 1000;
}
}
if (lastModified != null) {
if (lastModified < tourDB.tourDetailsLastUpdated(TOUR_GUID)) {
// cache is still fresh (use it, and mark it as fresh)
tourDB.markTourFresh(TOUR_GUID);
// retrieve tour from DB
List<TourHeader> tourHeaders = tourDB.retrieveTourHeaders();
sTour = new Tour(tourHeaders.get(0));
tourDB.populateTourDetails(sTour);
MobileWebApi.sendSuccessMessage(uiHandler);
return;
}
}
// tour is not up-to-date we need to update it.
fetchTourFromNetwork(context, uiHandler);
}
});
return;
}
// no fresh or stale version of tour exists must retrieve it from network
fetchTourFromNetwork(context, uiHandler);
}
public void fetchSuggestedUrl(Context context, String originString, final Handler uiHandler) {
HashMap<String, String> parameters = new HashMap<String, String>();
parameters.put("module", MODULE_NAME);
parameters.put("q", originString);
final MobileWebApi api = new MobileWebApi(false, true, "QR Code", context, uiHandler);
api.requestJSONObject(
parameters,
new JSONObjectResponseListener(
new MobileWebApi.DefaultErrorListener(uiHandler),
new MobileWebApi.DefaultCancelRequestListener(uiHandler)) {
@Override
public void onResponse(JSONObject object) throws ServerResponseException, JSONException {
SuggestedUrl suggest = new SuggestedUrl();
if (object.has("success") && !object.isNull("success")) {
boolean success = object.getBoolean("success");
suggest.isSuccess = success;
// success so parse rest of JSON
suggest.type = object.getString("type");
suggest.displayType = object.getString("displayType");
suggest.displayName = object.getString("displayName");
// init suggest.shareAction
JSONObject shareObj = object.optJSONObject("share");
if (shareObj != null) {
suggest.shareAction = new QRAction();
suggest.shareAction.title = shareObj.getString("title");
suggest.shareAction.payload = shareObj.getString("data");
}
// init suggest.actions array
JSONArray actionsArr = object.optJSONArray("actions");
if (actionsArr != null) {
int actionsArrLength = actionsArr.length();
for (int i = 0; i < actionsArrLength; i++) {
JSONObject jsonAction = actionsArr.getJSONObject(i);
QRAction actionItem = new QRAction();
actionItem.title = jsonAction.optString("title");
actionItem.payload = jsonAction.optString("url");
suggest.actions.add(actionItem);
}
}
MobileWebApi.sendSuccessMessage(uiHandler, suggest);
}
MobileWebApi.sendErrorMessage(uiHandler);
}
});
}
/** ***************************************************************** */
public void fetchMIT150WelcomeContent(final Context context, final Handler uiHandler) {
MobileWebApi webApi = new MobileWebApi(false, true, "MIT150", context, uiHandler);
HashMap<String, String> query = new HashMap<String, String>();
query.put("module", "anniversary");
query.put("command", "welcome");
webApi.requestJSONObject(
query,
new JSONObjectResponseListener(new MobileWebApi.DefaultErrorListener(uiHandler), null) {
@Override
public void onResponse(JSONObject object) throws ServerResponseException, JSONException {
content = object.getString("content");
MobileWebApi.sendSuccessMessage(uiHandler);
}
});
}
@Override
public void onError() {
// failed to retrieve last modified time from network, lets just assume
// data in db is up-to-date
// retrieve tour from DB
List<TourHeader> tourHeaders = mTourDB.retrieveTourHeaders();
sTour = new Tour(tourHeaders.get(0));
mTourDB.populateTourDetails(sTour);
MobileWebApi.sendSuccessMessage(mUIHandler);
}
private static void fetchTourFromNetwork(Context context, final Handler uiHandler) {
final TourDB tourDB = TourDB.getInstance(context);
MobileWebApi webApi = new MobileWebApi(false, true, "Tour", context, uiHandler);
HashMap<String, String> query = new HashMap<String, String>();
query.put("module", "tours");
query.put("command", "tourDetails");
query.put("tourId", TOUR_GUID);
webApi.requestJSONObject(
query,
new JSONObjectResponseListener(new MobileWebApi.DefaultErrorListener(uiHandler), null) {
@Override
public void onResponse(JSONObject object) throws ServerResponseException, JSONException {
// save header info
String title = object.getString("title");
String descriptionTop = object.getString("description-top");
String descriptionBottom = object.getString("description-bottom");
Tour tour = new Tour(TOUR_GUID, title, descriptionTop, descriptionBottom);
// save footer info
String feedbackSubject = object.getJSONObject("feedback").getString("subject");
tour.setFeedbackSubject(feedbackSubject);
// parse all the links for the tour footer
JSONArray links = object.getJSONArray("links");
for (int linkIndex = 0; linkIndex < links.length(); linkIndex++) {
JSONObject linkJson = links.getJSONObject(linkIndex);
tour.getFooter().addLink(linkJson.getString("title"), linkJson.getString("url"));
}
// parse all the sites data
JSONArray sites = object.getJSONArray("sites");
for (int siteIndex = 0; siteIndex < sites.length(); siteIndex++) {
JSONObject siteJson = sites.getJSONObject(siteIndex);
Site site =
tour.addSite(
siteJson.getString("id"),
siteJson.getString("title"),
siteJson.getString("photo-url"),
siteJson.getString("thumbnail156-url"),
optString(siteJson, "audio-url"),
parseLatLon(siteJson.getJSONObject("latlon")));
if (siteJson.has("exit-directions")) {
String destinationGuid;
if (siteIndex + 1 < sites.length()) {
destinationGuid = sites.getJSONObject(siteIndex + 1).getString("id");
} else {
destinationGuid = sites.getJSONObject(0).getString("id");
}
site.setExitDirections(
siteJson.getJSONObject("exit-directions").getString("title"),
destinationGuid,
siteJson.getJSONObject("exit-directions").getInt("zoom"));
JSONObject exitDirectionsJson = siteJson.getJSONObject("exit-directions");
populateContent(site.getExitDirections().getContent(), exitDirectionsJson);
populatePath(site.getExitDirections().getPath(), exitDirectionsJson);
site.getExitDirections().setPhotoUrl(optString(exitDirectionsJson, "photo-url"));
site.getExitDirections().setAudioUrl(optString(exitDirectionsJson, "audio-url"));
}
populateContent(site.getContent(), siteJson);
}
// parse all the start locations data
tour.setStartLocationsHeader(
object.getJSONObject("start-locations").getString("header"));
JSONArray startLocationsItems =
object.getJSONObject("start-locations").getJSONArray("items");
for (int startLocationIndex = 0;
startLocationIndex < startLocationsItems.length();
startLocationIndex++) {
JSONObject startLocationJson = startLocationsItems.getJSONObject(startLocationIndex);
tour.addStartLocation(
startLocationJson.getString("title"),
startLocationJson.getString("id"),
startLocationJson.getString("start-site"),
startLocationJson.getString("content"),
optString(startLocationJson, "photo-url"),
parseLatLon(startLocationJson.getJSONObject("latlon")));
}
ArrayList<Tour> tours = new ArrayList<Tour>();
tours.add(tour);
tourDB.saveTourHeaders(tours);
tourDB.saveTourDetails(tour);
sTour = tour;
MobileWebApi.sendSuccessMessage(uiHandler);
}
});
}
