} //method
#endregion
#region ClientFaults, Validation
public void ThrowValidation()
{
if (ClientFaults.Count == 0)
{
return;
}
var cfex = new ClientFaultException(_clientFaults.ToArray());
throw cfex;
}//method
public void Throw()
{
lock (_lock) {
if (_faults.Count == 0)
{
return;
}
var cfex = new ClientFaultException(new List <ClientFault>(_faults));
_faults.Clear();
throw cfex;
}
} //method
private static void WriteClientFaultException(StringBuilder sb, ClientFaultException exception)
{
sb.AppendFormat("ClientFaultException: {0}\r\n", exception.Message);
foreach (var fault in exception.Faults)
{
sb.Append(" ");
sb.AppendLine(fault.ToLogString());
}
if (exception.Data.Count > 0)
{
WriteExceptionData(sb, exception);
}
if (exception.InnerException != null)
{
WriteInnerException(sb, exception.InnerException);
}
}
//Sequences set of records in a looped non-trivial entity group. Assigns record.SortSubIndex value after sequencing
private void SequenceSubGroup(IEnumerable<EntityRecord> records)
{
var graph = new Graph();
foreach (var rec in records) {
var ent = rec.EntityInfo;
foreach (var refMember in ent.RefMembers) {
var targetEnt = rec.GetValue(refMember);
//If reference is not modified or not set, then nothing to do
if (targetEnt == null)
continue;
var targetRec = EntityHelper.GetRecord(targetEnt);
// we are interested only in case when both records are inserted, or both are deleted.
if (targetRec.Status != rec.Status)
continue;
// finally, the target record's table must be in the same SCC group - i.e. have the same SccIndex
if (targetRec.EntityInfo.TopologicalIndex != rec.EntityInfo.TopologicalIndex)
continue;
// We have potential conflict; add vertexes and link for the conflict
var thisV = graph.FindOrAdd(rec);
var targetV = graph.FindOrAdd(targetRec);
thisV.AddLink(targetV);
}
}//foreach cmd
//Check if any conflicts found
if (graph.Vertexes.Count == 0) return;
//Build SCC graph
graph.BuildScc();
// Once SCC is built, we have SCC indexes in Vertexes; use them to assign Record's TopologicalIndex
bool hasNonTrivialGroups = false;
foreach (var v in graph.Vertexes) {
var rec = (EntityRecord)v.Tag;
rec.SortSubIndex = rec.Status == EntityStatus.New ? -v.SccIndex : v.SccIndex;
hasNonTrivialGroups |= v.NonTrivialGroup;
}
//if there are non-trivial groups, it means we have circular references in the set.
if (hasNonTrivialGroups) {
var entList = string.Join(",", records.Select(r=> r.PrimaryKey.ToString()));
var msg = StringHelper.SafeFormat("Detected circular references between entities in an update set. Cannot commit group update. Entities: [{0}].", entList);
var fault = new ClientFault() {Code = ClientFaultCodes.CircularEntityReference, Message = msg};
var faultEx = new ClientFaultException(new[] { fault });
faultEx.LogAsError = true;
throw faultEx;
}
}
public void Throw()
{
lock(_lock) {
if(_faults.Count == 0)
return;
var cfex = new ClientFaultException(new List<ClientFault>(_faults));
_faults.Clear();
throw cfex;
}
}
private static void WriteClientFaultException(StringBuilder sb, ClientFaultException exception)
{
sb.AppendFormat("ClientFaultException: {0}\r\n", exception.Message);
foreach(var fault in exception.Faults) {
sb.Append(" ");
sb.AppendLine(fault.ToLogString());
}
if(exception.Data.Count > 0)
WriteExceptionData(sb, exception);
if(exception.InnerException != null)
WriteInnerException(sb, exception.InnerException);
}
