internal async Task RunFileBrowserCloseTask(FileBrowserCloseParams fileBrowserParams, RequestContext <FileBrowserCloseResponse> requestContext)
{
FileBrowserCloseResponse result = new FileBrowserCloseResponse();
try
{
FileBrowserOperation operation = null;
ConnectionInfo connInfo;
ownerToFileBrowserMap.TryGetValue(fileBrowserParams.OwnerUri, out operation);
this.ConnectionServiceInstance.TryFindConnection(fileBrowserParams.OwnerUri, out connInfo);
if (operation != null && connInfo != null)
{
if (!operation.FileTreeCreated)
{
operation.Cancel();
}
// Clear queued items
this.fileBrowserQueue.ClearQueuedItems();
// Queue operation to clean up resources
QueueItem queueItem = fileBrowserQueue.QueueBindingOperation(
key: fileBrowserQueue.AddConnectionContext(connInfo, this.serviceName),
bindingTimeout: DefaultTimeout,
waitForLockTimeout: DefaultTimeout,
bindOperation: (bindingContext, cancelToken) =>
{
FileBrowserOperation removedOperation = null;
ownerToFileBrowserMap.TryRemove(fileBrowserParams.OwnerUri, out removedOperation);
if (removedOperation != null)
{
removedOperation.Dispose();
}
result.Succeeded = true;
return(result);
});
queueItem.ItemProcessed.WaitOne();
if (queueItem.GetResultAsT <FileBrowserCloseResponse>() != null)
{
result = queueItem.GetResultAsT <FileBrowserCloseResponse>();
}
this.fileBrowserQueue.CloseConnections(connInfo.ConnectionDetails.ServerName, connInfo.ConnectionDetails.DatabaseName, DefaultTimeout);
}
}
catch (Exception ex)
{
Logger.Write(TraceEventType.Error, "Unexpected exception while closing file browser: " + ex.Message);
result.Message = ex.Message;
}
await requestContext.SendEvent(FileBrowserClosedNotification.Type, result);
}
internal async Task RunFileBrowserExpandTask(FileBrowserExpandParams fileBrowserParams, RequestContext <bool> requestContext)
{
FileBrowserExpandedParams result = new FileBrowserExpandedParams();
try
{
FileBrowserOperation operation = null;
ConnectionInfo connInfo;
ownerToFileBrowserMap.TryGetValue(fileBrowserParams.OwnerUri, out operation);
this.ConnectionServiceInstance.TryFindConnection(fileBrowserParams.OwnerUri, out connInfo);
if (operation != null && connInfo != null)
{
QueueItem queueItem = fileBrowserQueue.QueueBindingOperation(
key: fileBrowserQueue.AddConnectionContext(connInfo, this.serviceName),
bindingTimeout: DefaultTimeout,
waitForLockTimeout: DefaultTimeout,
bindOperation: (bindingContext, cancelToken) =>
{
result.ExpandPath = fileBrowserParams.ExpandPath;
result.Children = operation.GetChildren(fileBrowserParams.ExpandPath).ToArray();
result.OwnerUri = fileBrowserParams.OwnerUri;
result.Succeeded = true;
return(result);
});
queueItem.ItemProcessed.WaitOne();
if (queueItem.GetResultAsT <FileBrowserExpandedParams>() != null)
{
result = queueItem.GetResultAsT <FileBrowserExpandedParams>();
}
}
}
catch (Exception ex)
{
result.Message = ex.Message;
}
await requestContext.SendEvent(FileBrowserExpandedNotification.Type, result);
}
internal async Task RunFileBrowserOpenTask(FileBrowserOpenParams fileBrowserParams, RequestContext <bool> requestContext)
{
FileBrowserOpenedParams result = new FileBrowserOpenedParams();
FileBrowserOperation browser = null;
bool isCancelRequested = false;
try
{
ConnectionInfo connInfo;
this.ConnectionServiceInstance.TryFindConnection(fileBrowserParams.OwnerUri, out connInfo);
if (connInfo != null)
{
QueueItem queueItem = fileBrowserQueue.QueueBindingOperation(
key: fileBrowserQueue.AddConnectionContext(connInfo, this.serviceName),
bindingTimeout: DefaultTimeout,
waitForLockTimeout: DefaultTimeout,
bindOperation: (bindingContext, cancelToken) =>
{
if (!fileBrowserParams.ChangeFilter)
{
browser = new FileBrowserOperation(bindingContext.ServerConnection, fileBrowserParams.ExpandPath, fileBrowserParams.FileFilters);
}
else
{
ownerToFileBrowserMap.TryGetValue(fileBrowserParams.OwnerUri, out browser);
if (browser != null)
{
browser.Initialize(fileBrowserParams.ExpandPath, fileBrowserParams.FileFilters);
}
}
if (browser != null)
{
ownerToFileBrowserMap.AddOrUpdate(fileBrowserParams.OwnerUri, browser, (key, value) => browser);
// Create file browser tree
browser.PopulateFileTree();
if (browser.IsCancellationRequested)
{
isCancelRequested = true;
}
else
{
result.OwnerUri = fileBrowserParams.OwnerUri;
result.FileTree = browser.FileTree;
result.Succeeded = true;
}
}
return(result);
});
queueItem.ItemProcessed.WaitOne();
if (queueItem.GetResultAsT <FileBrowserOpenedParams>() != null)
{
result = queueItem.GetResultAsT <FileBrowserOpenedParams>();
}
}
}
catch (Exception ex)
{
result.Message = ex.Message;
}
if (!isCancelRequested)
{
await requestContext.SendEvent(FileBrowserOpenedNotification.Type, result);
}
}