internal void Migrate(Guid targetSideSourceId, SessionOrchestrationPolicy orchPolicy)
{
try
{
Debug.Assert(m_serviceContainers.ContainsKey(targetSideSourceId), string.Format(MigrationToolkitResources.UnknownSourceId, targetSideSourceId));
ChangeGroupService changegroupService = (ChangeGroupService)m_serviceContainers[targetSideSourceId].GetService(
typeof(ChangeGroupService));
Debug.Assert(changegroupService != null, string.Format("Change group service on {0} is not loaded", targetSideSourceId));
changegroupService.DemoteInProgressActionsToPending();
int pageNumber = 0;
IEnumerable <ChangeGroup> changeGroups = null;
long?firstConflictedChangeGroupId = null;
if (StopMigrationEngineOnBasicConflict)
{
firstConflictedChangeGroupId = changegroupService.GetFirstConflictedChangeGroup(ChangeStatus.Pending);
}
do
{
// NOTE: we do not increment pageNumber here, because the processed ChangeGroups are marked "Complete" and no longer
// appear in the table
TraceManager.TraceInformation("Loading {0} ChangeGroup(s)", m_pageSize);
changeGroups = changegroupService.NextMigrationInstructionTablePage(pageNumber, m_pageSize, false, false);
foreach (ChangeGroup nextChangeGroup in changeGroups)
{
if (firstConflictedChangeGroupId.HasValue &&
firstConflictedChangeGroupId <= nextChangeGroup.ChangeGroupId)
{
// we should not process any conflicted change group or the following ones
// if StopMigrationEngineOnBasicConflict is the policy
return;
}
//ToDo Session.OnMigratingChangeStarting(args);
TraceManager.TraceInformation("Processing ChangeGroup #{0}", nextChangeGroup.ChangeGroupId);
ProcessMigrInstructionTableEntry(nextChangeGroup, targetSideSourceId);
nextChangeGroup.UpdateStatus(ChangeStatus.InProgress);
if (NoActiveMigrationInstructionInChangeGroup(nextChangeGroup))
{
nextChangeGroup.Complete();
continue;
}
ConversionResult result;
try
{
result = m_migrationProviders[targetSideSourceId].ProcessChangeGroup(nextChangeGroup);
}
catch (MigrationUnresolvedConflictException)
{
// We have already created an unresolved conflict, just return.
return;
}
catch (Exception e)
{
ConflictManager manager = m_serviceContainers[targetSideSourceId].GetService(typeof(ConflictManager)) as ConflictManager;
ErrorManager.TryHandleException(e, manager);
return;
}
if (!result.ContinueProcessing)
{
return;
}
if (!string.IsNullOrEmpty(result.ChangeId))
{
FinishChangeGroupMigration(nextChangeGroup, result);
InvokePostChangeGroupMigrationAddins(targetSideSourceId, nextChangeGroup);
}
orchPolicy.Check();
}
}while (changeGroups.Count() == m_pageSize);
}
catch (Microsoft.TeamFoundation.Migration.Toolkit.SessionOrchestrationPolicy.StopSingleTripException)
{
throw;
}
catch (Microsoft.TeamFoundation.Migration.Toolkit.SessionOrchestrationPolicy.StopSessionException)
{
throw;
}
catch (Exception e)
{
ConflictManager manager = m_serviceContainers[targetSideSourceId].GetService(typeof(ConflictManager)) as ConflictManager;
ErrorManager.TryHandleException(e, manager);
}
}
private void OneDirectionProcessPipeline(
bool isLeftToRight,
Guid sourceMigrationSourceId,
Guid targetMigrationSourceId,
bool contextSyncNeeded,
bool bidirection)
{
try
{
m_orchPolicy.Check();
AnalysisEngine.SourceMigrationSourceId = sourceMigrationSourceId;
AnalysisEngine.InvokePreAnalysisAddins(sourceMigrationSourceId);
if (!AnalysisEngine.InvokeProceedToAnalysisOnAnalysisAddins(sourceMigrationSourceId))
{
// In case any of the AnalysisAddins perform cleanup in the PostAnalysis method
AnalysisEngine.InvokePostAnalysisAddins(sourceMigrationSourceId);
return;
}
TraceManager.TraceInformation("Pipeline flow from {0} to {1}", sourceMigrationSourceId, targetMigrationSourceId);
if (contextSyncNeeded)
{
TraceManager.TraceInformation("Generating context info tables for the migration source {0}", sourceMigrationSourceId);
AnalysisEngine.GenerateContextInfoTables(sourceMigrationSourceId);
m_orchPolicy.Check();
}
TraceManager.TraceInformation("Generating delta tables for the migration source {0}", sourceMigrationSourceId);
AnalysisEngine.GenerateDeltaTables(sourceMigrationSourceId);
m_orchPolicy.Check();
AnalysisEngine.InvokePostDeltaComputationAddins(sourceMigrationSourceId);
TraceManager.TraceInformation("Generating linking delta for the migration source {0}", sourceMigrationSourceId);
LinkEngine.GenerateLinkDelta(SessionId, sourceMigrationSourceId);
m_orchPolicy.Check();
AnalysisEngine.InvokePostAnalysisAddins(sourceMigrationSourceId);
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Above: data collection at source side //
// Below: data migration/submission at target side //
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
MigrationEngine.InvokePreMigrationAddins(targetMigrationSourceId);
if (contextSyncNeeded)
{
TraceManager.TraceInformation("Establishing context for the migration source {0}", targetMigrationSourceId);
MigrationEngine.EstablishContext(targetMigrationSourceId);
m_orchPolicy.Check();
}
if (!AnalysisEngine.DisableTargetAnalysis)
{
TraceManager.TraceInformation("Generating delta tables for the migration source {0}", targetMigrationSourceId);
AnalysisEngine.GenerateDeltaTables(targetMigrationSourceId);
m_orchPolicy.Check();
}
TraceManager.TraceInformation("Generating migration instructions for the migration source {0}", targetMigrationSourceId);
AnalysisEngine.GenerateMigrationInstructions(targetMigrationSourceId);
m_orchPolicy.Check();
TraceManager.TraceInformation("Post-processing delta table entries from the migration source {0}", targetMigrationSourceId);
AnalysisEngine.PostProcessDeltaTableEntries(targetMigrationSourceId, bidirection);
m_orchPolicy.Check();
TraceManager.TraceInformation("Migrating to the migration source {0}", targetMigrationSourceId);
MigrationEngine.Migrate(targetMigrationSourceId, m_orchPolicy);
m_orchPolicy.Check();
MigrationEngine.InvokePostMigrationAddins(targetMigrationSourceId);
TraceManager.TraceInformation("Processing linking delta");
LinkEngine.AnalyzeLinkDelta(SessionId, sourceMigrationSourceId, bidirection);
m_orchPolicy.Check();
TraceManager.TraceInformation("Migrating links to the migration source {0}", targetMigrationSourceId);
LinkEngine.MigrateLinks(SessionId, targetMigrationSourceId);
m_orchPolicy.Check();
}
finally
{
// Record a sync point in the database
try
{
RecordSyncPoint(isLeftToRight, sourceMigrationSourceId, targetMigrationSourceId);
}
catch (Exception ex)
{
TraceManager.TraceWarning("{0}: Unable to record SyncPoint data due to exception: {1}", m_thread.Name, ex.ToString());
}
}
}