public ReadOnlyCollection <LinkChangeGroup> GenerateNextLinkDeltaSlice(
LinkService linkService,
int maxDeltaSliceSize)
{
try
{
var linkChangeGroups = new List <LinkChangeGroup>();
if (null == ExtractLinkChangeActionsCallback)
{
return(linkChangeGroups.AsReadOnly());
}
// load high watermark; as for CQ, we store local time for queries
m_hwmLink.Reload();
DateTime hwmDeltaValue = m_hwmLink.Value;
if (hwmDeltaValue.Equals(default(DateTime)))
{
hwmDeltaValue = new DateTime(1900, 1, 1);
}
hwmDeltaValue = hwmDeltaValue.AddSeconds(-1); // go back 1 second as we'll drop the millisec below
string hwmDeltaValueStr = hwmDeltaValue.ToString(m_migrationContext.CQQueryDateTimeFormat, CultureInfo.InvariantCulture);
// record current time to update HWM after processing
DateTime newHwmValue = CQUtilityMethods.GetTimeForNewHighWaterMark(m_migrationContext.CQTimeOffsetFromServerHistoryTimesInMinutes);
// store to be used for analysis
WorkItemLinkStore store = new WorkItemLinkStore(m_configurationService.SourceId);
// extract links
var inMaxDeltaSliceSize = maxDeltaSliceSize;
foreach (CQRecordFilter filter in m_filters)
{
CQRecordQueryBase recordQuery = CQRecordQueryFactory.CreateQuery(m_userSession, filter, hwmDeltaValueStr, this);
foreach (ClearQuestOleServer.OAdEntity record in recordQuery)
{
// HACK HACK
if (record == null)
{
continue;
}
// HACK HACK
string recDispName = CQWrapper.GetEntityDisplayName(record);
TraceManager.TraceInformation("Generating linking delta for CQ Record: {0}", recDispName);
var perWorkItemlinkChangeGroups = new List <LinkChangeGroup>();
ExtractLinkChangeActionsCallback(m_userSession, record, perWorkItemlinkChangeGroups);
if (perWorkItemlinkChangeGroups.Count == 0)
{
TraceManager.TraceInformation("Number of links: {0}", 0);
continue;
}
LinkChangeGroup consolidatedLinkChangeGroup = perWorkItemlinkChangeGroups[0];
for (int i = 1; i < perWorkItemlinkChangeGroups.Count; ++i)
{
foreach (LinkChangeAction action in perWorkItemlinkChangeGroups[i].Actions)
{
consolidatedLinkChangeGroup.AddChangeAction(action);
}
}
TraceManager.TraceInformation("Number of links: {0}", consolidatedLinkChangeGroup.Actions.Count.ToString());
// VERY IMPORTANT STEP: update the link delta to store
string hostRecMigrItemId = UtilityMethods.CreateCQRecordMigrationItemId(record);
store.UpdatePerItemLinkChangeGroupsByCheckingRelatedItemRecords(
hostRecMigrItemId, consolidatedLinkChangeGroup, this);
if (consolidatedLinkChangeGroup.Actions.Count > 0)
{
linkChangeGroups.Add(consolidatedLinkChangeGroup);
}
maxDeltaSliceSize -= consolidatedLinkChangeGroup.Actions.Count;
if (maxDeltaSliceSize <= 0)
{
// size limit reached - persist groups to DB, then empty the slice and process next slice
linkService.AddChangeGroups(linkChangeGroups);
linkChangeGroups.Clear();
maxDeltaSliceSize = inMaxDeltaSliceSize;
}
}
}
// persist remaining groups to DB
linkService.AddChangeGroups(linkChangeGroups);
// clean up the returned link change group collection
// when the caller (toolkit) receives an empty collection, it understands there is no more
// delta to generate for the moment, and proceeds to next phase
linkChangeGroups.Clear();
// update primary Highwater Mark
m_hwmLink.Update(newHwmValue);
TraceManager.TraceInformation("Persisted CQ linking HWM: {0}", ClearQuestConstants.CqLinkHwm);
TraceManager.TraceInformation("Updated CQ linking HWM: {0}", newHwmValue.ToString());
return(linkChangeGroups.AsReadOnly());
}
catch (Exception exception)
{
// [teyang] TODO CONFLICT HANDLING
//MigrationConflict genericeConflict = WitGeneralConflictType.CreateConflict(exception);
//var conflictManager = m_conflictManager.GetService(typeof(ConflictManager)) as ConflictManager;
//Debug.Assert(null != conflictManager);
//List<MigrationAction> resolutionActions;
//ConflictResolutionResult resolveRslt =
// conflictManager.TryResolveNewConflict(conflictManager.SourceId, genericeConflict, out resolutionActions);
//Debug.Assert(!resolveRslt.Resolved);
TraceManager.TraceException(exception);
return(new List <LinkChangeGroup>().AsReadOnly());
}
}
public void GenerateDeltaTable()
{
try
{
if (!m_isLoginUserSQLEditor)
{
ValidateIsSQLEditor();
m_isLoginUserSQLEditor = true;
}
// load high watermark; as for CQ, we store local time for queries
m_hwmDelta.Reload();
DateTime hwmDeltaValue = m_hwmDelta.Value;
if (hwmDeltaValue.Equals(default(DateTime)))
{
hwmDeltaValue = new DateTime(1900, 1, 1);
}
hwmDeltaValue = hwmDeltaValue.AddSeconds(-1); // go back 1 second as we'll drop the millisec below
m_migrationContext.CurrentHWMBaseLine = hwmDeltaValue;
string hwmDeltaValueStr = hwmDeltaValue.ToString(m_migrationContext.CQQueryDateTimeFormat, CultureInfo.InvariantCulture);
DateTime newHwmValue = CQUtilityMethods.GetTimeForNewHighWaterMark(m_migrationContext.CQTimeOffsetFromServerHistoryTimesInMinutes);
foreach (CQRecordFilter filter in m_filters)
{
ComputeDeltaPerRecordType(filter, hwmDeltaValueStr);
}
// persist results and hwm
TraceManager.TraceInformation("Promote delta to pending.");
m_changeGroupService.PromoteDeltaToPending();
m_hwmDelta.Update(newHwmValue);
TraceManager.TraceInformation("Persisted CQ HWM: {0}", ClearQuestConstants.CqRecordHwm);
TraceManager.TraceInformation("Updated CQ HWM: {0}", newHwmValue.ToString());
}
catch (ClearQuestInsufficientPrivilegeException privEx)
{
ConflictResolutionResult rslt = UtilityMethods.HandleInsufficientPriviledgeException(privEx, m_conflictManagerService);
if (rslt.Resolved)
{
// todo: currently not expected, as we only enabled manual/skip resolution action
}
}
catch (ClearQuestCOMDllNotFoundException cqComNotFoundEx)
{
UtilityMethods.HandleCOMDllNotFoundException(cqComNotFoundEx, ErrorManager, m_conflictManagerService);
}
catch (ClearQuestCOMCallException cqComCallEx)
{
UtilityMethods.HandleCQComCallException(cqComCallEx, ErrorManager, m_conflictManagerService);
}
catch (Exception ex)
{
ErrorManager errMgr = null;
if (m_analysisServiceContainer != null)
{
errMgr = m_analysisServiceContainer.GetService(typeof(ErrorManager)) as ErrorManager;
}
UtilityMethods.HandleGeneralException(ex, errMgr, m_conflictManagerService);
}
}