private IDataObject TransitSourceObject(IDataObject sourceObject)
{
var ctx = new ValueTransitContext(sourceObject, null);
ctx.Trace = (TraceMode | MapConfig.Current.TraceMode).HasFlag(TraceMode.Commands);
ctx.DataPipeline = this;
try
{
RunCommands(ctx);
if (ctx.Flow == TransitionFlow.SkipObject && ctx.Target != null)
{
//If object just created and skipped by migration logic - need to remove it from cache
//becaus it's invalid and must be removed from cache to avoid any referencing to this object
//by any migration logic (lookups, key ytansitions, etc.)
//If object is not new, it means that it's already saved and passed by migration validation
if (ctx.Target.IsNew)
{
_targetSystem.InvalidateObject(ctx.Target);
}
//Tracer.TraceEvent(MigrationEvent.ObjectSkipped, ctx, "Source object skipped");
return(null);
}
}
catch (Exception e)
{
throw new DataMigrationException("Error occured while object processing", ctx, e);
}
return(ctx.Target);
}
private void RunCommands(ValueTransitContext ctx)
{
foreach (var childTransition in Commands)
{
//every time after value transition finishes - reset current value to Source object
ctx.ResetCurrentValue();
childTransition.TraceColor = ConsoleColor.Yellow;
TraceLine("", ctx);
ctx.Execute(childTransition);
if (ctx.Flow == TransitionFlow.SkipValue)
{
ctx.Flow = TransitionFlow.Continue;
//Tracer.TraceEvent(MigrationEvent.ValueSkipped, ctx,"Value skipped");
continue;
}
if (ctx.Flow != TransitionFlow.Continue)
{
break;
}
}
}
private void TraceLine(string message, ValueTransitContext ctx)
{
if ((TraceMode | MapConfig.Current.TraceMode).HasFlag(TraceMode.Objects) || ctx?.Trace == true)
{
Tracer.TraceLine(message, ctx, ConsoleColor.Magenta);
}
}
public DataMigrationException(string message, ValueTransitContext ctx, Exception innerException) : base(message, innerException)
{
Context = ctx;
}