public void PlayQueue(string queueName)
{
// if user hasn't been set, we cannot sync with the service
if (User == null)
return;
// peek at the first record
RequestQueue.RequestRecord record = RequestQueue.GetRequestRecord(queueName);
// if the record is null, this means we've processed all the pending changes
if (record == null)
{
// if we were playing the user queue (and are now done), start playing the system queue
if (queueName == RequestQueue.UserQueue)
{
// prepare the system queue for playing (this will catch any FolderID / ItemID discrepancies between server and client $ClientSettings)
RequestQueue.PrepareSystemQueueForPlaying();
PlayQueue(RequestQueue.SystemQueue);
}
else
{
// retrieve the Service's (now authoritative) data
GetUserData();
}
return;
}
// get type name for the record
string typename = record.BodyTypeName;
// trace playing record
TraceHelper.AddMessage(String.Format("Play Queue: {0} {1}", record.ReqType, typename));
PlayQueueCallbackDelegate callbackDelegate = null;
switch (queueName)
{
case RequestQueue.UserQueue:
callbackDelegate = new PlayQueueCallbackDelegate(PlayUserQueueCallback);
break;
case RequestQueue.SystemQueue:
callbackDelegate = new PlayQueueCallbackDelegate(PlaySystemQueueCallback);
break;
default:
TraceHelper.AddMessage("PlayQueue: unrecognized queue name " + queueName);
return;
}
// invoke the appropriate web service call based on the record type
switch (record.ReqType)
{
case RequestQueue.RequestRecord.RequestType.Delete:
switch (typename)
{
case "Tag":
WebServiceHelper.DeleteTag(
User,
(Tag)record.Body,
callbackDelegate,
new NetworkOperationInProgressCallbackDelegate(NetworkOperationInProgressCallback));
break;
case "Item":
WebServiceHelper.DeleteItem(
User,
(Item)record.Body,
callbackDelegate,
new NetworkOperationInProgressCallbackDelegate(NetworkOperationInProgressCallback));
break;
case "Folder":
WebServiceHelper.DeleteFolder(
User,
(Folder)record.Body,
callbackDelegate,
new NetworkOperationInProgressCallbackDelegate(NetworkOperationInProgressCallback));
break;
}
break;
case RequestQueue.RequestRecord.RequestType.Insert:
switch (typename)
{
case "Tag":
WebServiceHelper.CreateTag(
User,
(Tag)record.Body,
callbackDelegate,
new NetworkOperationInProgressCallbackDelegate(NetworkOperationInProgressCallback));
break;
case "Item":
WebServiceHelper.CreateItem(
User,
(Item)record.Body,
callbackDelegate,
new NetworkOperationInProgressCallbackDelegate(NetworkOperationInProgressCallback));
break;
case "Folder":
WebServiceHelper.CreateFolder(
User,
(Folder)record.Body,
callbackDelegate,
new NetworkOperationInProgressCallbackDelegate(NetworkOperationInProgressCallback));
break;
}
break;
case RequestQueue.RequestRecord.RequestType.Update:
switch (typename)
{
case "Tag":
WebServiceHelper.UpdateTag(
User,
(List<Tag>)record.Body,
callbackDelegate,
new NetworkOperationInProgressCallbackDelegate(NetworkOperationInProgressCallback));
break;
case "Item":
WebServiceHelper.UpdateItem(
User,
(List<Item>)record.Body,
callbackDelegate,
new NetworkOperationInProgressCallbackDelegate(NetworkOperationInProgressCallback));
break;
case "Folder":
WebServiceHelper.UpdateFolder(
User,
(List<Folder>)record.Body,
callbackDelegate,
new NetworkOperationInProgressCallbackDelegate(NetworkOperationInProgressCallback));
break;
}
break;
default:
return;
}
}