/// <summary>
///
/// </summary>
/// <param name="delivery"></param>
/// <param name="conflictBehavior">Indicates how conflicting deliveries will be handled.</param>
/// <param name="importManager">The import manager that will be used to handle conflicting deliveries.</param>
public void HandleConflicts(DeliveryImportManager importManager, DeliveryConflictBehavior defaultConflictBehavior, bool getBehaviorFromConfiguration = true)
{
if (this.Delivery.Outputs.Count < 1)
{
return;
}
ServiceInstanceInfo parent = this.Instance;
while (parent.ParentInstance != null)
{
parent = parent.ParentInstance;
}
foreach (DeliveryOutput output in this.Delivery.Outputs)
{
if (!output.PipelineInstanceID.HasValue)
{
output.PipelineInstanceID = parent.InstanceID;
}
}
this.Delivery.Save();
// ================================
// Conflict behavior
DeliveryConflictBehavior behavior = defaultConflictBehavior;
if (getBehaviorFromConfiguration)
{
string configuredBehavior;
if (Instance.Configuration.Options.TryGetValue("ConflictBehavior", out configuredBehavior))
{
behavior = (DeliveryConflictBehavior)Enum.Parse(typeof(DeliveryConflictBehavior), configuredBehavior);
}
}
var processing = new List <DeliveryOutput>();
var committed = new List <DeliveryOutput>();
foreach (DeliveryOutput output in this.Delivery.Outputs)
{
DeliveryOutput[] conflicts = output.GetConflicting();
foreach (DeliveryOutput conflict in conflicts)
{
if (conflict.PipelineInstanceIsRunning)
{
processing.Add(conflict);
}
if (conflict.Status == DeliveryOutputStatus.Committed || conflict.Status == DeliveryOutputStatus.Staged)
{
committed.Add(conflict);
}
}
}
if (processing.Count > 0)
{
foreach (var output in Delivery.Outputs)
{
output.Status = DeliveryOutputStatus.Canceled;
}
this.Delivery.Save();
throw new DeliveryConflictException("There are outputs with the same signatures currently being processed:")
{
ConflictingOutputs = processing.ToArray()
}; // add list of output ids
}
if (behavior == DeliveryConflictBehavior.Ignore)
{
return;
}
if (committed.Count > 0)
{
foreach (var output in Delivery.Outputs)
{
output.Status = DeliveryOutputStatus.Canceled;
}
this.Delivery.Save();
throw new DeliveryConflictException("There are outputs with the same signatures are already committed\\staged:")
{
ConflictingOutputs = committed.ToArray()
}; // add list of output ids
}
}
/// <summary>
///
/// </summary>
/// <param name="delivery"></param>
/// <param name="conflictBehavior">Indicates how conflicting deliveries will be handled.</param>
/// <param name="importManager">The import manager that will be used to handle conflicting deliveries.</param>
public DeliveryRollbackOperation HandleConflicts(DeliveryImportManager importManager, DeliveryConflictBehavior defaultConflictBehavior, bool getBehaviorFromConfiguration = true)
{
if (this.Delivery.Signature == null)
{
throw new InvalidOperationException("Cannot handle conflicts before a valid signature is given to the delivery.");
}
// ================================
// Ticket behavior
DeliveryTicketBehavior ticketBehavior = DeliveryTicketBehavior.Abort;
if (getBehaviorFromConfiguration)
{
string configuredTicketBehavior;
if (Instance.Configuration.Options.TryGetValue("TicketBehavior", out configuredTicketBehavior))
{
ticketBehavior = (DeliveryTicketBehavior)Enum.Parse(typeof(DeliveryTicketBehavior), configuredTicketBehavior);
}
}
//prevent duplicate data in case two services runing on the same time
if (ticketBehavior == DeliveryTicketBehavior.Abort)
{
using (SqlConnection sqlConnection = new SqlConnection(AppSettings.GetConnectionString("Edge.Core.Services", "SystemDatabase")))
{
// @"DeliveryTicket_Get(@deliverySignature:Nvarchar, @deliveryID:Nvarchar, $workflowInstanceID:bigint)"
SqlCommand command = EdgeConfiguration.DataManager.CreateCommand(string.Format("{0}({1})", AppSettings.Get(this.GetType(), "DeliveryTicket.SP"), "@deliverySignature:NvarChar,@deliveryID:NvarChar,@workflowInstanceID:bigint"), System.Data.CommandType.StoredProcedure);
command.Parameters["@deliverySignature"].Value = Delivery.Signature;
command.Parameters["@deliveryID"].Value = Delivery.DeliveryID.ToString("N");
command.Parameters["@workflowInstanceID"].Value = Instance.ParentInstance.InstanceID;
command.Parameters["@workflowInstanceID"].Direction = System.Data.ParameterDirection.InputOutput;
sqlConnection.Open();
command.Connection = sqlConnection;
if (((DeliveryTicketStatus)command.ExecuteScalar()) == DeliveryTicketStatus.ClaimedByOther)
{
throw new Exception(String.Format("The current delivery signature is currently claimed by service instance ID {0}.", command.Parameters["@workflowInstanceID"].Value));
}
}
}
// ================================
// Conflict behavior
DeliveryConflictBehavior behavior = defaultConflictBehavior;
if (getBehaviorFromConfiguration)
{
string configuredBehavior;
if (Instance.Configuration.Options.TryGetValue("ConflictBehavior", out configuredBehavior))
{
behavior = (DeliveryConflictBehavior)Enum.Parse(typeof(DeliveryConflictBehavior), configuredBehavior);
}
}
if (behavior == DeliveryConflictBehavior.Ignore)
{
return(null);
}
Delivery[] conflicting = this.Delivery.GetConflicting();
Delivery[] toCheck = new Delivery[conflicting.Length + 1];
toCheck[0] = this.Delivery;
conflicting.CopyTo(toCheck, 1);
// Check whether the last commit was not rolled back for each conflicting delivery
List <Delivery> toRollback = new List <Delivery>();
foreach (Delivery d in toCheck)
{
int rollbackIndex = -1;
int commitIndex = -1;
for (int i = 0; i < d.History.Count; i++)
{
if (d.History[i].Operation == DeliveryOperation.Committed)
{
commitIndex = i;
}
else if (d.History[i].Operation == DeliveryOperation.RolledBack)
{
rollbackIndex = i;
}
}
if (commitIndex > rollbackIndex)
{
toRollback.Add(d);
}
}
DeliveryRollbackOperation operation = null;
if (toRollback.Count > 0)
{
if (behavior == DeliveryConflictBehavior.Rollback)
{
operation = new DeliveryRollbackOperation();
operation.AsyncDelegate = new Action <Delivery[]>(importManager.Rollback);
operation.AsyncResult = operation.AsyncDelegate.BeginInvoke(toRollback.ToArray(), null, null);
}
else
{
StringBuilder guids = new StringBuilder();
for (int i = 0; i < toRollback.Count; i++)
{
guids.Append(toRollback[i].DeliveryID.ToString("N"));
if (i < toRollback.Count - 1)
{
guids.Append(", ");
}
}
throw new Exception("Conflicting deliveries found: " + guids.ToString());
}
}
return(operation);
}
