public void ExtractEmailsAsync()
{
while (!isTerminating)
{
// Check if the folder exists and contains atleast 1 text file
if (TotalFiles(Scrapers.Pastebin.SaveLocation) == 0)
{
return;
}
// Create a worker and a call back
MergeWorkerDelegate worker = new MergeWorkerDelegate(ExtractEmailWorker);
AsyncCallback completedCallback = new AsyncCallback(MergeCompletedCallBack);
// Lock the operation and fire up the worker
lock (_sync)
{
if (isMergeRunning)
{
throw new InvalidOperationException("Merge is already running, please wait till current merge completes");
}
AsyncOperation async = AsyncOperationManager.CreateOperation(null);
worker.BeginInvoke(completedCallback, async);
isMergeRunning = true;
}
break;
}
}
private void MergeCompletedCallBack(IAsyncResult ar)
{
// Get the original worker delegate instance and async operation
MergeWorkerDelegate worker = (MergeWorkerDelegate)((AsyncResult)ar).AsyncDelegate;
AsyncOperation async = (AsyncOperation)ar.AsyncState;
// Invoke worker end
worker.EndInvoke(ar);
// Clear the running task flag
lock (_sync) { isMergeRunning = false; }
// Raise a completion event
AsyncCompletedEventArgs completedArgs = new AsyncCompletedEventArgs(null, false, null);
async.PostOperationCompleted(delegate(object e) { OnMergeCompleted((AsyncCompletedEventArgs)e); }, completedArgs);
}
public void MergeFilesAsync(int byteSize, string location)
{
while (!isTerminating)
{
// Check if the folder exists and contains atleast 1 text file
if (TotalFiles(location) == 0)
{
return;
}
// Generate a file named after the first object in files
try
{
string path = string.Format(@"{0}\Merge{1}bytes", location, byteSize);
for (int i = 0; i < 1000; i++)
{
if (i == 0)
{
if (File.Exists(path + ".txt"))
{
continue;
}
else
{
path = path + ".txt";
FileStream f = File.Create(path);
f.Close();
break;
}
}
if (File.Exists(path + i + ".txt"))
{
continue;
}
else
{
path = path + i + ".txt";
FileStream f = File.Create(path);
f.Close();
break;
}
}
destinationPath = location;
destinationFile = path;
}
catch (Exception e) { Console.WriteLine("Failed to create a merge file with reason: " + e); return; }
// Create a worker and a call back
MergeWorkerDelegate worker = new MergeWorkerDelegate(MergeWorker);
AsyncCallback completedCallback = new AsyncCallback(MergeCompletedCallBack);
// Lock the operation and fire up the worker
lock (_sync)
{
if (isMergeRunning)
{
throw new InvalidOperationException("Merge is already running, please wait till current merge completes");
}
AsyncOperation async = AsyncOperationManager.CreateOperation(null);
worker.BeginInvoke(byteSize, completedCallback, async);
isMergeRunning = true;
}
break;
}
}
