/// <summary>
/// Puts a number of changed objects into the database. The resultant objects are sent back to the client.
/// </summary>
/// <param name="version">Current version of generated Zetbox.Objects assembly</param>
/// <param name="msgArray">a streamable list of <see cref="IPersistenceObject"/>s</param>
/// <param name="notificationRequests">A list of objects the client wants to be notified about, if they change.</param>
/// <returns>a streamable list of <see cref="IPersistenceObject"/>s</returns>
public byte[] SetObjects(Guid version, byte[] msgArray, ObjectNotificationRequest[] notificationRequests)
{
using (Logging.Facade.DebugTraceMethodCall("SetObjects"))
{
DebugLogIdentity();
int resultCount = 0;
var ticks = _perfCounter.IncrementSetObjects();
try
{
if (msgArray == null)
{
throw new ArgumentNullException("msgArray");
}
MemoryStream msg = new MemoryStream(msgArray);
msg.Seek(0, SeekOrigin.Begin);
using (IZetboxContext ctx = _ctxFactory())
{
var objects = ReadObjects(msg, ctx);
// Set Operation
var changedObjects = _sohFactory
.GetServerObjectSetHandler()
.SetObjects(version, ctx, objects, notificationRequests ?? new ObjectNotificationRequest[0])
.Cast <IStreamable>();
resultCount = objects.Count;
return(SendObjects(changedObjects, true).ToArray());
}
}
catch (Exception ex)
{
Helper.ThrowFaultException(ex);
// Never called, Handle errors throws an Exception
return(null);
}
finally
{
_perfCounter.DecrementSetObjects(resultCount, ticks);
}
}
}
public IEnumerable <IPersistenceObject> SetObjects(IZetboxContext ctx, IEnumerable <IPersistenceObject> objects, IEnumerable <ObjectNotificationRequest> notficationRequests)
{
var ticks = _perfCounter.IncrementSetObjects();
try
{
IEnumerable <IPersistenceObject> result = null;
// Serialize
using (var ms = new MemoryStream())
using (var sw = _writerFactory(new BinaryWriter(ms)))
{
SendObjects(objects, sw);
byte[] bytes = null;
var _ms = ms.ToArray();
var _nReq = notficationRequests.ToArray();
MakeRequest(() =>
{
bytes = _service.SetObjects(ZetboxGeneratedVersionAttribute.Current, _ms, _nReq);
});
using (var sr = _readerFactory(new BinaryReader(new MemoryStream(bytes))))
{
// merge auxiliary objects into primary set objects result
List <IStreamable> auxObjects;
var receivedObjects = ReceiveObjects(ctx, sr, out auxObjects);
result = receivedObjects.Concat(auxObjects).Cast <IPersistenceObject>();
}
}
return(result);
}
finally
{
_perfCounter.DecrementSetObjects(objects.Count(), ticks);
}
}
