public GetImportEntriesResults GetImportEntries(GetImportEntriesRunStep importRunStep)
{
GetImportEntriesResults results = new GetImportEntriesResults();
if (this.importRunStepParameters.ImportType == OperationType.Delta)
{
int count = 0;
// Add items to the result collection until the page size has been exceeded or
// The queue is empty
while (CSEntryChangeQueue.Count > 0 && (count < this.importRunStepParameters.PageSize))
{
results.CSEntries.Add(CSEntryChangeQueue.Take());
count++;
}
// If the queue is not yet empty, tell the sync engine that we have more to import
results.MoreToImport = CSEntryChangeQueue.Count > 0;
}
else
{
// Perform normal full import
}
return(results);
}
public void OpenExportConnection(KeyedCollection <string, ConfigParameter> configParameters, Schema types, OpenExportConnectionRunStep exportRunStep)
{
// The schema types are required for serialization, so save them into a local variable for use in CloseExportConnection
this.operationSchema = types;
// Load the existing items from the queue. We want to add to this collection, rather than overwrite it as an import operation may not have been run yet
CSEntryChangeQueue.LoadQueue(this.filename);
// ... Export initialization code
}
/// <summary>
/// Loads the queue from the specified file
/// </summary>
/// <param name="filename">The name of the file</param>
public static void LoadQueue(string filename)
{
lock (CSEntryChangeQueue.queue)
{
CSEntryChangeQueue.queue.Clear();
foreach (CSEntryChange csentry in CSEntryChangeDeserializer.Deserialize(filename))
{
CSEntryChangeQueue.Add(csentry);
}
}
}
public CloseImportConnectionResults CloseImportConnection(CloseImportConnectionRunStep importRunStep)
{
if (this.importRunStepParameters.ImportType == OperationType.Full)
{
// We just performed a full import so clear the queue
CSEntryChangeQueue.Clear();
}
// Save the remaining items in the queue. If we have done a full import, the queue will be empty, and will clear any existing delta records
CSEntryChangeQueue.SaveQueue(this.filename, this.operationSchema);
return(new CloseImportConnectionResults());
}
public OpenImportConnectionResults OpenImportConnection(KeyedCollection <string, ConfigParameter> configParameters, Schema types, OpenImportConnectionRunStep importRunStep)
{
// The schema types are required for serialization, so save them into a local variable for use in CloseImportConnection
this.operationSchema = types;
this.importRunStepParameters = importRunStep;
if (this.importRunStepParameters.ImportType == OperationType.Delta)
{
// Load the items from the queue
CSEntryChangeQueue.LoadQueue(this.filename);
}
return(new OpenImportConnectionResults());
}
public PutExportEntriesResults PutExportEntries(IList <CSEntryChange> csentries)
{
foreach (CSEntryChange item in csentries)
{
try
{
// Export Code
// ...
// ...
// On successful export, add the CSEntryChange to the queue
CSEntryChangeQueue.Add(item);
}
catch (Exception)
{
// If the export failed, do not add the CSEntryChange to the queue
}
}
return(new PutExportEntriesResults());
}
public void CloseExportConnection(CloseExportConnectionRunStep exportRunStep)
{
// Save the items in the queue to the specified file
CSEntryChangeQueue.SaveQueue(this.filename, this.operationSchema);
}