private void DeleteUser(DtDelta delta)
{
var adusername = sqlService.GetUserForId(delta.DataForDelete).AdUsername;
adservice.DeleteUser(adusername);
sqlService.RemoveUserRecord(delta.DataForDelete);
}
private void DeleteGroup(DtDelta delta)
{
var username = sqlService.GetGroupnameForId(delta.DataForDelete);
adservice.DeleteGroup(username);
sqlService.RemoveGroupRecord(username);
}
private void InsertDedupeDeltaAction(DtDelta rootDelta, DtDelta latestDelta, List <DeltaAction> result)
{
if (rootDelta.Seq == latestDelta.Seq)
{
//if rootDelta == latestDelta, then there are no later sequenced deltas.
//but there may be prior ones in the results.
// check if rootDelta exists as new delta. if not, then add
if (!result.Exists(d => d.NewDelta.Seq == rootDelta.Seq))
{
result.Add(new DeltaAction(rootDelta, latestDelta));
}
//else can ignore, as will be picked up by resolver
}
else
{
if (result.Exists(d => d.NewDelta.Seq == latestDelta.Seq))
{
//if latestDelta exists as new delta
//then old delta should be identical. check, then set oldest as rootDelta.
var existing = result.First(d => d.NewDelta.Seq == latestDelta.Seq);
if (existing.OldDelta.Seq > rootDelta.Seq)
{
result.Remove(existing);
result.Add(new DeltaAction(rootDelta, latestDelta));
}
}
else
{
result.Add(new DeltaAction(rootDelta, latestDelta));
}
}
}
private List <DeltaAction> PairGroupDeltas(IEnumerable <DtDelta> deltas)
{
var inserts = deltas.Where(d => !d.IsDelete);
var deletes = deltas.Where(d => d.IsDelete);
var result = new List <DeltaAction>(); //old values, new values
foreach (var rootDelta in deltas)
{
//this is the root entry
//recurse through other entries to find final related entry
var foundEnd = false;
var latestDelta = rootDelta;
do
{
DtDelta temp = null;
temp = FindNextRelatedGroupDelta(latestDelta, inserts, deletes);
if (temp != null)
{
latestDelta = temp;
}
else
{
foundEnd = true;
}
} while (!foundEnd);
InsertDedupeDeltaAction(rootDelta, latestDelta, result);
}
return(result);
}
private void CreateUser(DtDelta delta)
{
var user = delta.DataAsUser;
adservice.CreateUser(ref user);
sqlService.CreateUserRecord(user);
//removed autoemail
//emailservice.SendWelcomeEmail(user);
}
private void UpdateUser(DtDelta delta)
{
var userData = delta.DataAsUser;
var savedUser = sqlService.GetUserForId(userData.Id);
userData.AdUsername = savedUser.AdUsername;
if (adservice.UpdateUser(delta.DataAsUser))
{
sqlService.UpdateUserRecord(userData);
}
}
private DtDelta FindNextRelatedGroupDelta(DtDelta rootDtDelta, IEnumerable <DtDelta> allInserts, IEnumerable <DtDelta> allDeletes)
{
DtDelta result = null;
if (rootDtDelta.Action == DtDelta.DeleteAction)
{
//get username for this deletion id
var groupnameToDelete = string.Empty;
var earlierInsert = allInserts.
FirstOrDefault(i => i.Seq < rootDtDelta.Seq &&
i.DataAsGroup.Id == rootDtDelta.DataForDelete);
if (earlierInsert != null)
{
groupnameToDelete = earlierInsert.DataAsGroup.Name;
}
//if there's no value in the array, there may be one in the db
if (string.IsNullOrWhiteSpace(groupnameToDelete))
{
groupnameToDelete = sqlService.GetGroupnameForId(rootDtDelta.DataForDelete);
}
//if you can't find a record for this Id, you can't proceed. Something is wrong with data.
if (string.IsNullOrWhiteSpace(groupnameToDelete))
{
throw new Exception(string.Format("No role insert record found for this id: {0}", rootDtDelta.DataForDelete));
}
//search for next insert for same username as delete
var insertsForGroupname = allInserts.
Where(i => i.Seq > rootDtDelta.Seq &&
i.DataAsGroup.Name == groupnameToDelete)
.OrderBy(a => a.Seq);
if (insertsForGroupname.Any())
{
result = insertsForGroupname.First();
}
}
else if (rootDtDelta.Action == DtDelta.InsertAction)
{
//search for delete action for same id
var deletesForId = allDeletes.
Where(i => i.Seq > rootDtDelta.Seq &&
i.DataForDelete == rootDtDelta.DataAsGroup.Id);
if (deletesForId.Any())
{
result = deletesForId.First();
}
}
return(result);
}
private DtDelta FindSubsequentUserRoleDeletion(DtDelta rootDtDelta, IEnumerable <DtDelta> allDeletes)
{
DtDelta result = null;
if (!rootDtDelta.IsDelete)
{
//search for delete action for same id
result = allDeletes.
FirstOrDefault(i => i.Seq > rootDtDelta.Seq &&
i.DataForDelete == rootDtDelta.DataAsUserGroup.Id);
}
return(result);
}
public IEnumerable <DtDelta> GetDeltas(string documentName, int currentDelta)
{
var offset = 0;
var hasMore = true;
var result = new List <DtDelta>();
do
{
var docString = client.GetDelta(documentName, offset, ReadLimit, currentDelta);
var jarray = JsonConvert.DeserializeObject <JArray>(docString);
if (jarray == null)
{
hasMore = false;
continue;
}
if (jarray.Count == 1)
{
if (jarray[0].Type != JTokenType.Object)
{
hasMore = false;
continue;
}
}
foreach (var delta in jarray)
{
var datowniaDelta = new DtDelta().FromContentRow(delta);
result.Add(datowniaDelta);
}
if (jarray.Count < ReadLimit)
{
hasMore = false;
}
else
{
offset += ReadLimit;
}
} while (hasMore);
return(result);
}
private List <DtDelta> RemoveRedundantDeltas(IEnumerable <DtDelta> deltas)
{
//normally, we follow the chain of alternate deletes and inserts
//resulting in:
//a delete then insert => this is an update
//or a delete then delete (via one or more inserts) => this is a delete of the old value
//or an insert then delete => cancels out
//or an insert then insert (via one or more deletes) => only insert the latest value
//BUT
//in this case, we need to do this:
//if it's a delete we can't check for subsequent inserts, due to compound key.
// we cannot find a chain. this means we process the delete on AD individually.
//if it's an insert, we can look for a corresponding deletion and ignore both
// if no deletion is found, then we're looking at a standalone insertion. process as such.
var deletes = deltas.Where(d => d.IsDelete);
var result = new List <DtDelta>(); //old values, new values
foreach (var rootDelta in deltas)
{
DtDelta nextDelta = null;
if (rootDelta.IsDelete)
{
//it is a delete.
result.Add(rootDelta);
}
else
{
nextDelta = FindSubsequentUserRoleDeletion(rootDelta, deletes);
if (nextDelta == null)
{
//data is an insert.
result.Add(rootDelta);
}
//else the insert gets deleted so can be ignored
}
}
return(result);
}
private void ResolveUserGroupDelta(DtDelta action)
{
if (action.IsDelete)
{
//remove from AD
var userRole = sqlService.GetUserGroupForId(action.DataForDelete);
if (userRole != null)
{
var user = sqlService.GetUserByUsername(userRole.Username);
if (user != null)
{
var adUsername = user.AdUsername;
adservice.RemoveUserGroup(adUsername, userRole.Group);
}
//remove from sql
sqlService.RemoveUserGroupRecord(action.DataForDelete);
}
}
else
{
//add to AD
var userRole = action.DataAsUserGroup;
var userByUsername = sqlService.GetUserByUsername(userRole.Username);
if (userByUsername == null)
{
Trace.WriteLine("Could not find user related to group");
return;
}
var adUsername = userByUsername.AdUsername;
adservice.AddUserGroup(adUsername, userRole.Group);
//insert into sql
sqlService.CreateUserGroupRecord(userRole);
}
}
private void CreateGroup(DtDelta delta)
{
adservice.CreateGroup(delta.DataAsGroup);
sqlService.CreateGroupRecord(delta.DataAsGroup);
}