private int?ComputeHash(XmlNode rootNode, bool shouldChangeTrack)
{
int? result = null;
List <int> list = new List <int>(50);
list.Add(ChangeTrackingNode.GetQualifiedName(rootNode).GetHashCode());
foreach (object obj in rootNode.ChildNodes)
{
XmlNode xmlNode = (XmlNode)obj;
string qualifiedName = ChangeTrackingNode.GetQualifiedName(xmlNode);
if (shouldChangeTrack && this.changeTrackingNodes.ContainsKey(qualifiedName))
{
int num = this.changeTrackingNodes[qualifiedName];
this.seenNodes[num] = xmlNode;
if (ChangeTrackingFilter.IsContainer(xmlNode))
{
AirSyncDiagnostics.TraceInfo <string>(ExTraceGlobals.RequestsTracer, this, "ChangeTrackingFilter.ComputeHash() Recursively computing hash for change tracked container {0}", qualifiedName);
this.newChangeTrackingInformation[num] = this.ComputeHash(xmlNode, shouldChangeTrack);
AirSyncDiagnostics.TraceInfo <string, int?>(ExTraceGlobals.RequestsTracer, this, "ChangeTrackingFilter.ComputeHash() Returned hash for change tracked container {0} = {1}", qualifiedName, this.newChangeTrackingInformation[num]);
}
else
{
int value = ChangeTrackingNode.GetQualifiedName(xmlNode).GetHashCode() ^ this.GetHashCode(xmlNode);
this.newChangeTrackingInformation[num] = new int?(value);
AirSyncDiagnostics.TraceInfo <string, int?>(ExTraceGlobals.RequestsTracer, this, "ChangeTrackingFilter.ComputeHash() Calculated change tracked node hash {0} {1}", qualifiedName, this.newChangeTrackingInformation[num]);
}
}
else if (ChangeTrackingFilter.IsContainer(xmlNode))
{
int?arg = this.ComputeHash(xmlNode, false);
if (arg != null)
{
list.Add(arg.Value);
AirSyncDiagnostics.TraceInfo <string, string, int?>(ExTraceGlobals.RequestsTracer, this, "ChangeTrackingFilter.ComputeHash() Returned container node hash {0}{1} = {2}", xmlNode.NamespaceURI, xmlNode.Name, arg);
}
}
else
{
int item = ChangeTrackingNode.GetQualifiedName(xmlNode).GetHashCode() ^ this.GetHashCode(xmlNode);
list.Add(item);
AirSyncDiagnostics.TraceInfo <string, string, int>(ExTraceGlobals.RequestsTracer, this, "ChangeTrackingFilter.ComputeHash() Calculated node hash {0}{1} = {2}", xmlNode.NamespaceURI, xmlNode.Name, item.GetHashCode());
}
}
if (list.Count > 1)
{
list.Sort();
StringBuilder stringBuilder = new StringBuilder(list.Count * 10);
foreach (int num2 in list)
{
stringBuilder.Append(num2.ToString(CultureInfo.InvariantCulture));
}
result = new int?(stringBuilder.ToString().GetHashCode());
}
return(result);
}
public override bool HasSchemaPropertyChanged(ISyncItem syncItem, int?[] oldChangeTrackingInformation, XmlDocument xmlResponse, MailboxLogger mailboxLogger)
{
bool flag = false;
XmlNode xmlItemRoot = xmlResponse.CreateElement("ApplicationData", "AirSync:");
try
{
this.EntityDataObject.Bind(syncItem.NativeItem);
base.AirSyncDataObject.Bind(xmlItemRoot);
base.AirSyncDataObject.CopyFrom(this.EntityDataObject);
}
catch (Exception ex)
{
if (!SyncCommand.IsItemSyncTolerableException(ex))
{
throw;
}
if (mailboxLogger != null)
{
mailboxLogger.SetData(MailboxLogDataName.MailboxSyncCommand_HasSchemaPropertyChanged_Exception, ex);
}
AirSyncUtility.ExceptionToStringHelper arg = new AirSyncUtility.ExceptionToStringHelper(ex);
AirSyncDiagnostics.TraceError <AirSyncUtility.ExceptionToStringHelper>(ExTraceGlobals.RequestsTracer, this, "Sync-tolerable Entity conversion Exception was thrown. HasSchemaPropertyChanged() {0}", arg);
flag = true;
}
finally
{
this.EntityDataObject.Unbind();
base.AirSyncDataObject.Unbind();
}
if (!flag)
{
int?[] array = base.ChangeTrackFilter.UpdateChangeTrackingInformation(xmlItemRoot, oldChangeTrackingInformation);
AirSyncDiagnostics.TraceDebug <int?[], int?[]>(ExTraceGlobals.RequestsTracer, this, "HasSchemaPropertyChanged oldCCI {0} newCCI {1}", oldChangeTrackingInformation, array);
flag = !ChangeTrackingFilter.IsEqual(array, oldChangeTrackingInformation);
}
return(flag);
}