public Object getFromCache(
LocalUserDetail user, APIResourceCredentials credentials, String cacheKey) {
if (null != subscriptionStore
&& null != subscriptionStore.getBySubscriptionId(user.getUserId())
&& null != entityCache) {
return entityCache.get(credentials, cacheKey);
} else {
return null;
}
}
/**
* Removes subscription
*
* @param collectionType
* @param subscriptionId
*/
public void unsubscribe(
String subscriberId,
LocalUserDetail user,
APICollectionType collectionType,
final String subscriptionId)
throws FitbitAPIException {
if (null == subscriptionStore) {
throw new FitbitAPIException(
"Can not deal with subscriptions without a place to store information about them.");
}
// This example application only allows a single subscription per
// (local) user. We use the user's ID as the subscription ID to avoid
// having to maintain a mapping.
client.unsubscribe(
subscriberId, user, FitbitUser.CURRENT_AUTHORIZED_USER, collectionType, subscriptionId);
LocalSubscriptionDetail subscription = subscriptionStore.getBySubscriptionId(user.getUserId());
if (null != subscription) {
subscriptionStore.delete(subscription);
}
}
/**
* Creates new subscription
*
* @param collectionType Collection to receive notifications from
* @param subscriptionId ID associated with subscription
* @return SubscriptionDetail
*/
public SubscriptionDetail subscribe(
String subscriberId,
LocalUserDetail user,
APICollectionType collectionType,
final String subscriptionId)
throws FitbitAPIException {
if (null == subscriptionStore) {
throw new FitbitAPIException(
"Can not deal with subscriptions without a place to store information about them.");
}
// This example application only allows a single subscription per
// (local) user. We use the user's ID as the subscription ID to avoid
// having to maintain a mapping.
SubscriptionDetail result =
client.subscribe(
subscriberId, user, FitbitUser.CURRENT_AUTHORIZED_USER, collectionType, subscriptionId);
if (null != result) {
LocalSubscriptionDetail detail = new LocalSubscriptionDetail(result, true);
subscriptionStore.save(detail);
}
return result;
}
public void evictUpdatedResourcesFromCache(
String subscriberId, InputStream updateMessageStream, String serverSignature)
throws FitbitAPIException {
try {
if (null == serverSignature) {
throw new FitbitAPISecurityException("Missing signature.");
}
String updateMessage = APIUtil.inputStreamToString(updateMessageStream);
String ourSignature = APIUtil.generateSignature(updateMessage, subscriberSecret);
if (null == ourSignature || !ourSignature.equals(serverSignature)) {
throw new FitbitAPISecurityException("Signatures do not match, given " + serverSignature);
}
UpdateNotification notification = new UpdateNotification(new JSONArray(updateMessage));
int i = 0;
for (UpdatedResource resource : notification.getUpdatedResources()) {
//noinspection UnnecessaryParentheses,ValueOfIncrementOrDecrementUsed
log.info(
"Processing update notification "
+ (++i)
+ " for subscription "
+ resource.getSubscriptionId());
LocalSubscriptionDetail sub =
subscriptionStore.getBySubscriptionId(resource.getSubscriptionId());
if (null == sub) {
log.info(
"Nothing known about subscription "
+ resource.getSubscriptionId()
+ ", creating placeholder.");
sub =
new LocalSubscriptionDetail(
new SubscriptionDetail(
subscriberId,
resource.getSubscriptionId(),
resource.getOwner(),
resource.getCollectionType()),
false);
subscriptionStore.save(sub);
}
sub.setLastUpdateNotificationDate(new Date());
APIResourceCredentials credentials =
credentialsCache.getResourceCredentials(
new LocalUserDetail(resource.getSubscriptionId()));
String cacheKeyWithUserId =
APIUtil.constructFullUrl(
client.getApiBaseUrl(),
client.getApiVersion(),
resource.getOwner(),
resource.getCollectionType(),
resource.getDate(),
APIFormat.JSON);
Activities entity = (Activities) entityCache.get(credentials, cacheKeyWithUserId);
if (null != entity) {
log.info("Evicting entity " + cacheKeyWithUserId);
entityCache.remove(credentials, cacheKeyWithUserId);
} else {
log.info("There is no cached version of entity " + cacheKeyWithUserId);
}
String cacheKeyWithPlaceholder =
APIUtil.constructFullUrl(
client.getApiBaseUrl(),
client.getApiVersion(),
FitbitUser.CURRENT_AUTHORIZED_USER,
resource.getCollectionType(),
resource.getDate(),
APIFormat.JSON);
entity = (Activities) entityCache.get(credentials, cacheKeyWithPlaceholder);
if (null != entity) {
log.info("Evicting entity " + cacheKeyWithPlaceholder);
entityCache.remove(credentials, cacheKeyWithPlaceholder);
} else {
log.info("There is no cached version of entity " + cacheKeyWithPlaceholder);
}
}
} catch (IOException e) {
throw new FitbitAPIException("Notification stream is malformed: " + e, e);
} catch (JSONException e) {
throw new FitbitAPIException("Unable to parse update message: " + e, e);
}
}