public BuildContext(IObjectSpace appObjectSpace, ObjectSpace snapObjectSpace, ReplicationNode targetNode,
ActionWorker worker)
{
AppObjectSpace = appObjectSpace;
SnapObjectSpace = snapObjectSpace;
TargetNode = targetNode;
Worker = worker;
DoneObjects = new Queue <object>();
Map = new Dictionary <object, object>();
SnapSources = new Dictionary <IModelClass, IList <object> >();
}
public string LoadSnapshotPackage(LoadPackageContext context)
{
var result = string.Empty;
XafDeltaModule.Instance.LoadService.BeginLoad();
try
{
using (var snapshotObjectSpace = new ObjectSpace(context.Package.UnitOfWork))
{
// create root context
var sourceMaps = snapshotObjectSpace.GetObjects <SnapshotOidMap>().OrderBy(x => x.OrdNo).ToList();
var rootContext = new SnapLoadContext(context, sourceMaps);
context.Worker.ReportProgress(string.Format(Localizer.ObjectsFoundInSnapshot, sourceMaps.Count));
var i = 0;
// restore all of object from snapshot
foreach (var sourceMap in sourceMaps.TakeWhile(x => !context.Worker.CancellationPending))
{
context.Worker.ReportPercent((double)i++ / (double)sourceMaps.Count);
context.Worker.ShowStatus(string.Format(Localizer.SnapshotObject, sourceMap.Target.Target));
loadSnapshotObject(rootContext, sourceMap);
}
if (!context.Worker.CancellationPending)
{
// fix OidMap references
var newMaps = from c in context.ObjectSpace.ModifiedObjects.Cast <object>()
where c is OidMap && ((OidMap)c).NewObject != null
select c as OidMap;
context.ObjectSpace.CommitChanges();
newMaps.ToList().ForEach(x => x.FixReference());
snapshotPostLoad(context.ObjectSpace);
restoreLastLoadedNum(context, snapshotObjectSpace);
context.ObjectSpace.CommitChanges();
snapshotObjectSpace.Rollback();
}
}
}
catch (Exception exception)
{
result = string.Format(Localizer.SnapshotLoadingIsFailed, exception.Message);
context.Worker.ReportError(result);
}
XafDeltaModule.Instance.LoadService.EndLoad();
if (string.IsNullOrEmpty(result))
{
if (context.Worker.CancellationPending)
{
result = Localizer.LoadingAborted;
}
context.Worker.ReportProgress(Color.Blue, Localizer.SnapshotLoadingIs,
(context.Worker.CancellationPending
? Localizer.Aborted
: Localizer.Finished));
}
return(result);
}
public bool BuildSnapshot(ActionWorker worker, ReplicationNode targetNode)
{
if (targetNode == null)
{
throw new ArgumentNullException("targetNode");
}
if (targetNode.Session.IsNewObject(targetNode))
{
throw new UnsavedTargetNodeException();
}
if (targetNode.Disabled)
{
throw new DisabledTargetNodeException();
}
var result = false;
worker.ReportProgress(string.Format(Localizer.BuildingSnapshotForNode, targetNode.Name));
XafDeltaModule.Instance.LoadService.BeginLoad();
using (var appObjectSpace = XafDeltaModule.XafApp.CreateObjectSpace())
{
targetNode = appObjectSpace.GetObjectByKey <ReplicationNode>(targetNode.Oid);
Owner.DoBeforeBuildPackages(new BeforeBuildPackagesArgs(appObjectSpace));
var package = Owner.MessagingService.CreateOutputPackage(appObjectSpace, targetNode,
PackageType.Snapshot);
try
{
var doneObjectsCount = 0;
using (var snapObjectSpace = new ObjectSpace(package.UnitOfWork))
{
var rootContext = new BuildContext(appObjectSpace, snapObjectSpace, targetNode, worker);
foreach (var modelClass in XafDeltaModule.XafApp.Model.BOModel.Where(x => !x.NonSnapshot())
.TakeWhile(x => !worker.CancellationPending))
{
if (!modelClass.TypeInfo.IsAbstract && modelClass.TypeInfo.IsPersistent &&
(modelClass.TypeInfo.IsInterface || modelClass.TypeInfo.Implements <IXPObject>()))
{
doneObjectsCount += buildClassSnapshot(new ClassBuildContext(rootContext, modelClass));
}
}
if (doneObjectsCount > 0 && !worker.CancellationPending)
{
worker.ReportProgress(Localizer.CommitChanges);
snapObjectSpace.CommitChanges();
//snapshotPostBuild(snapObjectSpace);
snapObjectSpace.CommitChanges();
createSnapshotMaps(rootContext);
worker.ReportProgress(Localizer.CommitChanges);
snapObjectSpace.CommitChanges();
worker.ReportProgress(string.Format(Localizer.TotalObjectsSnapshoted,
doneObjectsCount));
result = true;
}
else
{
snapObjectSpace.Rollback();
if (worker.CancellationPending)
{
worker.ReportProgress(Color.DarkMagenta, Localizer.Aborted);
}
else
{
worker.ReportProgress(Color.DarkMagenta, Localizer.NoObjectsFoundForSnapshot);
}
}
}
package.CloseUnitOfWork(doneObjectsCount > 0 && !worker.CancellationPending);
result &= !worker.CancellationPending;
if (result)
{
Owner.OnAfterBuildSnapshot(new AfterBuildSnapshotArgs(targetNode));
}
}
catch (Exception exception)
{
worker.ReportError(Localizer.SnapshotFailed, exception.Message);
result = false;
}
// on success, commit changes to app database and package storage
if (result)
{
package.CreateLogRecord(PackageEventType.Created);
appObjectSpace.CommitChanges();
}
}
XafDeltaModule.Instance.LoadService.EndLoad();
if (result)
{
worker.ReportProgress(Color.Blue, Localizer.SnapshotBuildingIs,
(worker.CancellationPending ? Localizer.Aborted : Localizer.Finished));
}
return(result);
}
public BuildContext(IObjectSpace appObjectSpace, ObjectSpace snapObjectSpace, ReplicationNode targetNode,
ActionWorker worker)
{
AppObjectSpace = appObjectSpace;
SnapObjectSpace = snapObjectSpace;
TargetNode = targetNode;
Worker = worker;
DoneObjects = new Queue<object>();
Map = new Dictionary<object, object>();
SnapSources = new Dictionary<IModelClass, IList<object>>();
}
public bool BuildSnapshot(ActionWorker worker, ReplicationNode targetNode)
{
if (targetNode == null) throw new ArgumentNullException("targetNode");
if (targetNode.Session.IsNewObject(targetNode)) throw new UnsavedTargetNodeException();
if (targetNode.Disabled) throw new DisabledTargetNodeException();
var result = false;
worker.ReportProgress(string.Format(Localizer.BuildingSnapshotForNode, targetNode.Name));
XafDeltaModule.Instance.LoadService.BeginLoad();
using (var appObjectSpace = XafDeltaModule.XafApp.CreateObjectSpace())
{
targetNode = appObjectSpace.GetObjectByKey<ReplicationNode>(targetNode.Oid);
Owner.DoBeforeBuildPackages(new BeforeBuildPackagesArgs(appObjectSpace));
var package = Owner.MessagingService.CreateOutputPackage(appObjectSpace, targetNode,
PackageType.Snapshot);
try
{
var doneObjectsCount = 0;
using (var snapObjectSpace = new ObjectSpace(package.UnitOfWork))
{
var rootContext = new BuildContext(appObjectSpace, snapObjectSpace, targetNode, worker);
foreach (var modelClass in XafDeltaModule.XafApp.Model.BOModel.Where(x => !x.NonSnapshot())
.TakeWhile(x => !worker.CancellationPending))
{
if (!modelClass.TypeInfo.IsAbstract && modelClass.TypeInfo.IsPersistent
&& (modelClass.TypeInfo.IsInterface || modelClass.TypeInfo.Implements<IXPObject>()))
doneObjectsCount += buildClassSnapshot(new ClassBuildContext(rootContext, modelClass));
}
if (doneObjectsCount > 0 && !worker.CancellationPending)
{
worker.ReportProgress(Localizer.CommitChanges);
snapObjectSpace.CommitChanges();
//snapshotPostBuild(snapObjectSpace);
snapObjectSpace.CommitChanges();
createSnapshotMaps(rootContext);
worker.ReportProgress(Localizer.CommitChanges);
snapObjectSpace.CommitChanges();
worker.ReportProgress(string.Format(Localizer.TotalObjectsSnapshoted,
doneObjectsCount));
result = true;
}
else
{
snapObjectSpace.Rollback();
if (worker.CancellationPending)
worker.ReportProgress(Color.DarkMagenta, Localizer.Aborted);
else
worker.ReportProgress(Color.DarkMagenta, Localizer.NoObjectsFoundForSnapshot);
}
}
package.CloseUnitOfWork(doneObjectsCount > 0 && !worker.CancellationPending);
result &= !worker.CancellationPending;
if (result)
Owner.OnAfterBuildSnapshot(new AfterBuildSnapshotArgs(targetNode));
}
catch (Exception exception)
{
worker.ReportError(Localizer.SnapshotFailed, exception.Message);
result = false;
}
// on success, commit changes to app database and package storage
if (result)
{
package.CreateLogRecord(PackageEventType.Created);
appObjectSpace.CommitChanges();
}
}
XafDeltaModule.Instance.LoadService.EndLoad();
if (result)
{
worker.ReportProgress(Color.Blue, Localizer.SnapshotBuildingIs,
(worker.CancellationPending ? Localizer.Aborted : Localizer.Finished));
}
return result;
}
public string LoadSnapshotPackage(LoadPackageContext context)
{
var result = string.Empty;
XafDeltaModule.Instance.LoadService.BeginLoad();
try
{
using (var snapshotObjectSpace = new ObjectSpace(context.Package.UnitOfWork))
{
// create root context
var sourceMaps = snapshotObjectSpace.GetObjects<SnapshotOidMap>().OrderBy(x => x.OrdNo).ToList();
var rootContext = new SnapLoadContext(context, sourceMaps);
context.Worker.ReportProgress(string.Format(Localizer.ObjectsFoundInSnapshot, sourceMaps.Count));
var i = 0;
// restore all of object from snapshot
foreach (var sourceMap in sourceMaps.TakeWhile(x => !context.Worker.CancellationPending))
{
context.Worker.ReportPercent((double) i++/(double) sourceMaps.Count);
context.Worker.ShowStatus(string.Format(Localizer.SnapshotObject, sourceMap.Target.Target));
loadSnapshotObject(rootContext, sourceMap);
}
if (!context.Worker.CancellationPending)
{
// fix OidMap references
var newMaps = from c in context.ObjectSpace.ModifiedObjects.Cast<object>()
where c is OidMap && ((OidMap) c).NewObject != null
select c as OidMap;
context.ObjectSpace.CommitChanges();
newMaps.ToList().ForEach(x => x.FixReference());
snapshotPostLoad(context.ObjectSpace);
restoreLastLoadedNum(context, snapshotObjectSpace);
context.ObjectSpace.CommitChanges();
snapshotObjectSpace.Rollback();
}
}
}
catch (Exception exception)
{
result = string.Format(Localizer.SnapshotLoadingIsFailed, exception.Message);
context.Worker.ReportError(result);
}
XafDeltaModule.Instance.LoadService.EndLoad();
if (string.IsNullOrEmpty(result))
{
if (context.Worker.CancellationPending)
result = Localizer.LoadingAborted;
context.Worker.ReportProgress(Color.Blue, Localizer.SnapshotLoadingIs,
(context.Worker.CancellationPending
? Localizer.Aborted
: Localizer.Finished));
}
return result;
}