/// <summary>
/// Insert following activity
/// </summary>
/// <param name="storageConsistencyMode">Storage consistency mode</param>
/// <param name="userHandle">User handle</param>
/// <param name="appHandle">App handle</param>
/// <param name="activityHandle">Activity handle</param>
/// <param name="activityType">Activity type</param>
/// <param name="actorUserHandle">Actor user handle</param>
/// <param name="actedOnUserHandle">Acted on user handle</param>
/// <param name="actedOnContentType">Acted on content type</param>
/// <param name="actedOnContentHandle">Acted on content handle</param>
/// <param name="createdTime">Created time</param>
/// <returns>Insert activity task</returns>
public async Task InsertFollowingActivity(
StorageConsistencyMode storageConsistencyMode,
string userHandle,
string appHandle,
string activityHandle,
ActivityType activityType,
string actorUserHandle,
string actedOnUserHandle,
ContentType actedOnContentType,
string actedOnContentHandle,
DateTime createdTime)
{
// Insert an activity into a user's following activities feed
//
// PartitionKey: UserHandle
// FeedKey: AppHandle
// ItemKey: ActivityHandle (reverse sorted by time). We use LikeHandle, CommentHandle, ReplyHandle, and RelationshipHandle as activity handles
ActivityFeedEntity activityFeedEntity = new ActivityFeedEntity()
{
ActivityHandle = activityHandle,
AppHandle = appHandle,
ActivityType = activityType,
ActorUserHandle = actorUserHandle,
ActedOnUserHandle = actedOnUserHandle,
ActedOnContentType = actedOnContentType,
ActedOnContentHandle = actedOnContentHandle,
CreatedTime = createdTime
};
CTStore store = await this.tableStoreManager.GetStore(ContainerIdentifier.FollowingActivities);
FeedTable feedTable = this.tableStoreManager.GetTable(ContainerIdentifier.FollowingActivities, TableIdentifier.FollowingActivitiesFeed) as FeedTable;
Operation operation = Operation.InsertOrReplace(feedTable, userHandle, appHandle, activityHandle, activityFeedEntity);
await store.ExecuteOperationAsync(operation, storageConsistencyMode.ToConsistencyMode());
}
/// <summary>
/// Insert notification
/// </summary>
/// <param name="storageConsistencyMode">Storage consistency mode</param>
/// <param name="userHandle">User handle</param>
/// <param name="appHandle">App handle</param>
/// <param name="activityHandle">Activity handle</param>
/// <param name="activityType">Activity type</param>
/// <param name="actorUserHandle">Actor user handle</param>
/// <param name="actedOnUserHandle">Acted on user handle</param>
/// <param name="actedOnContentType">Acted on content type</param>
/// <param name="actedOnContentHandle">Acted on content handle</param>
/// <param name="createdTime">Created time</param>
/// <returns>Insert notification task</returns>
public async Task InsertNotification(
StorageConsistencyMode storageConsistencyMode,
string userHandle,
string appHandle,
string activityHandle,
ActivityType activityType,
string actorUserHandle,
string actedOnUserHandle,
ContentType actedOnContentType,
string actedOnContentHandle,
DateTime createdTime)
{
ActivityFeedEntity activityFeedEntity = new ActivityFeedEntity()
{
ActivityHandle = activityHandle,
AppHandle = appHandle,
ActivityType = activityType,
ActorUserHandle = actorUserHandle,
ActedOnUserHandle = actedOnUserHandle,
ActedOnContentType = actedOnContentType,
ActedOnContentHandle = actedOnContentHandle,
CreatedTime = createdTime
};
CTStore store = await this.tableStoreManager.GetStore(ContainerIdentifier.Notifications);
FeedTable feedTable = this.tableStoreManager.GetTable(ContainerIdentifier.Notifications, TableIdentifier.NotificationsFeed) as FeedTable;
CountTable countTable = this.tableStoreManager.GetTable(ContainerIdentifier.Notifications, TableIdentifier.NotificationsCount) as CountTable;
// do an insert & increment in a transaction.
// if a queue message for inserting a notification gets processed twice, then this transaction will generate
// a storage exception on the second attempt (because the insert will fail with a conflict (409) http status)
try
{
Transaction transaction = new Transaction();
transaction.Add(Operation.Insert(feedTable, userHandle, appHandle, activityHandle, activityFeedEntity));
transaction.Add(Operation.InsertOrIncrement(countTable, userHandle, appHandle));
await store.ExecuteTransactionAsync(transaction, storageConsistencyMode.ToConsistencyMode());
}
catch (StorageException e)
{
// ignore this exception only if item exists (error code 409 conflict)
if (e.RequestInformation.HttpStatusCode == (int)HttpStatusCode.Conflict)
{
this.log.LogInformation("NotificationsStore.InsertNotification received a conflict on insert" + e.Message);
}
else
{
throw e;
}
}
}
