// Define the event handlers.
private void OnChanged(object source, FileSystemEventArgs e)
{
if (!active)
{
return;
}
bwq.enque(this, e, (o1, e1) => {
const int NUM_RETRIES = 5;
const int WAIT_TIME_MS = 500;
for (int i = 0; i < NUM_RETRIES; i++)
{
try
{
if (i > 0)
{
//MyConsole.WriteLine("\tWaiting before retrying...");
Thread.Sleep(WAIT_TIME_MS);
}
processLogFile(e.FullPath);
break;
}
catch (IOException ex)
{
Trace.WriteLine(MODULE + "Logged exception " + ex);
MyConsole.WriteError(String.Format("\tCould not access [{0}]. Retrying...", Path.GetFileName(e.FullPath)));
}
}
});
Trace.WriteLine(MODULE + String.Format("Received OnChanged ([{0}], {1})", e.FullPath, e.ChangeType));
}
private static void myCtrlCHandler(ConsoleCancelEventArgs ea, BlockingWorkQueue workQueue)
{
Trace.WriteLine(MODULE + "In CTRL-C handler.");
ea.Cancel = true;
workQueue.enque(null, null, (ox, ex) => {
MyConsole.WriteWarning("CTRL-C received. Ok to quit (y/n)?");
String s = "" + (char)Console.Read();
if (s.ToUpperInvariant().IndexOf('Y') == 0)
{
workQueue.stopWaiting();
}
});
}
const String MODULE = "MAIN: "; // for debug log.
static void Main(string[] args)
{
string baseWorkingDir = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments)
+ "\\PuzzleOracle\\consolidated";
MyConsole.Initialize();
MyConsole.WriteLine("LOG PROCESSOR Version " + VERSION);
MyConsole.WriteLine(String.Format("Working directory [{0}]", baseWorkingDir));
MyConsole.WriteLine("Press CTRL-C to quit");
try
{
if (!initializeLogging(baseWorkingDir))
{
// Can't progress...
throw new ApplicationException("Cannot initialize logging.");
}
// Initialie the blocking work queue - it runs all significant processing operations in sequence on the main thread.
BlockingWorkQueue workQueue = new BlockingWorkQueue();
//workQueue.enque(null, null, (o, ea) => { Console.WriteLine("TEST WORK ITEM -A-"); });
//workQueue.enque(null, null, (o, ea) => { Console.WriteLine("TEST WORK ITEM -B-"); });
// Register the CTRL-C handler - this lets the user quit the program and potentially enter other commands.
// TODO: Currently the handler simply causes the work queue to exit after the latter processes current work items. Perhaps add some
// command processing and request confirmation of this behavior.
Console.CancelKeyPress += new ConsoleCancelEventHandler((o, ea) => { myCtrlCHandler(ea, workQueue); });
// Create the file copier - responsible for copying files from thumb drives to a staging directory, verifying the file copy and then moving
// the source files into an arcive subdir on the thumb drive, and (finally) moving the newly copied files under the "new" directory.
FileCopier fileCopier = new FileCopier(baseWorkingDir);
// Create a new-drive notifier and hook it up to the file copier - so that the latter will get notified whenever there is a new removable drive
// plugged in.
//NewDriveNotifier ndn = new NewDriveNotifier((o, e) => { bwq.enque(o, e, (o1, ea1) => { Console.WriteLine("WORK ITEM -NEW DRIVE-" + ((NewDriveNotifierEventArgs)ea1).driveName); }); });
using (NewDriveNotifier driveNotifier = new NewDriveNotifier((o, e) => { workQueue.enque(o, e, fileCopier.newDriveHandler); }))
{
// Create a log consumer - this processes submission requests pulled from individual puzzle oracle log files.
LogConsumer logConsumer = new LogConsumer(baseWorkingDir);
// Create the log processor - that processes new log files as they show up in the "new" directory. Hook it up to the log consumer so that the latter
// processes the submissions requests.
String newLogsDir = fileCopier.newDir;
using (LogProcessor lp = new LogProcessor(newLogsDir, (o, e) => { workQueue.enque(o, e, logConsumer.logEventHandler); }, workQueue))
{
lp.startListening(); // start listening for new files in the "new directory"
driveNotifier.startListening(); // start listening for new thumb drives
workQueue.process();
}
}
}
catch (ApplicationException e)
{
Trace.TraceError("Caught application exception: " + e);
MyConsole.WriteError("THE LOG PROCESSOR MUST EXIT.\nPress ENTER to quit.");
Trace.Flush();
Console.ReadLine();
}
}
