private async void Watcher()
{
while (!disposedValue)
{
// Can we talk to the server?
serverIsOnline = ServerPinging();
// Is the DB Cache available?
cacheIsAvailable = DBCacheFunctions.CacheUpToDate(serverIsOnline);
// Get status based on values of server online and cache mode.
var status = GetWatchdogStatus();
if (status != currentWatchdogStatus)
{
currentWatchdogStatus = status;
OnStatusChanged(new WatchdogStatusEventArgs(currentWatchdogStatus));
}
if (serverIsOnline)
{
//Fire tick event to update server datatime.
OnWatcherTick(new WatchdogTickEventArgs(GetServerTime()));
}
CheckForCacheRebuild();
await Task.Delay(watcherInterval);
}
}
private async void WatchdogRebuildCache(object sender, EventArgs e)
{
if (GlobalSwitches.BuildingCache)
{
return;
}
GlobalSwitches.BuildingCache = true;
try
{
SetStatusBar("Rebuilding DB Cache...");
await Task.Run(() =>
{
DBCacheFunctions.RefreshLocalDBCache();
});
}
catch (Exception ex)
{
ErrorHandling.ErrHandle(ex, System.Reflection.MethodBase.GetCurrentMethod());
}
finally
{
GlobalSwitches.BuildingCache = false;
DoneWaiting();
}
}
private void ChangeDatabase(DatabaseName database)
{
try
{
if (currentTransaction == null)
{
if (!GlobalSwitches.CachedMode & ServerInfo.ServerPinging)
{
if (database != ServerInfo.CurrentDataBase)
{
var blah = OtherFunctions.Message("Are you sure? This will close all open forms.", MessageBoxButtons.YesNo, MessageBoxIcon.Question, "Change Database", this);
if (blah == DialogResult.Yes)
{
if (this.OkToCloseChildren())
{
this.CloseChildren();
ServerInfo.CurrentDataBase = database;
AttributeFunctions.PopulateAttributeIndexes();
RefreshCombos();
SecurityTools.PopulateUserAccess();
InitDBControls();
GlobalSwitches.BuildingCache = true;
Task.Run(() => DBCacheFunctions.RefreshLocalDBCache());
ShowTestDBWarning();
SetDatabaseTitleText();
ShowAll();
}
}
}
}
else
{
OtherFunctions.Message("Cannot switch database while Offline or in Cached Mode.", MessageBoxButtons.OK, MessageBoxIcon.Information, "Unavailable", this);
}
}
else
{
OtherFunctions.Message("There is currently an active transaction. Please commit or rollback before switching databases.", MessageBoxButtons.OK, MessageBoxIcon.Exclamation, "Stop");
}
}
finally
{
DatabaseToolCombo.SelectedIndex = (int)ServerInfo.CurrentDataBase;
}
}
public static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.ThreadException += MyApplication_UnhandledException;
bool connectionSuccessful = false;
bool cacheAvailable = false;
try
{
NetworkInfo.LocalDomainUser = Environment.UserName;
ChildFormControl.SplashScreenInstance().Show();
ProcessCommandArgs();
Logging.Logger("Starting AssetManager...");
Status("Checking Server Connection...");
connectionSuccessful = CheckConnection();
ServerInfo.ServerPinging = connectionSuccessful;
Status("Checking Cache State...");
cacheAvailable = DBCacheFunctions.CacheUpToDate(connectionSuccessful);
// If connected to DB and cache is out-of-date, rebuild it.
if (connectionSuccessful && !cacheAvailable)
{
Status("Building Cache DB...");
Task.Run(() =>
{
DBCacheFunctions.RefreshLocalDBCache();
}).Wait();
}
// No DB connection and cache not ready. Don't run.
if (!connectionSuccessful & !cacheAvailable)
{
OtherFunctions.Message("Could not connect to server and the local DB cache is unavailable. The application will now close.", MessageBoxButtons.OK, MessageBoxIcon.Exclamation, "No Connection");
Application.Exit();
return;
}
// No DB connection but cache is ready. Prompt and run.
else if (!connectionSuccessful & cacheAvailable)
{
GlobalSwitches.CachedMode = true;
OtherFunctions.Message("Could not connect to server. Running from local DB cache.", MessageBoxButtons.OK, MessageBoxIcon.Exclamation, "Cached Mode");
}
// Try to populate access groups and user from DB.
Status("Checking Access Level...");
SecurityTools.PopulateAccessGroups();
SecurityTools.PopulateUserAccess();
// Make sure the current user is allowed to run the software.
if (!SecurityTools.CanAccess(SecurityGroups.CanRun))
{
OtherFunctions.Message("You do not have permission to run this software.", MessageBoxButtons.OK, MessageBoxIcon.Exclamation, "Access Denied");
Application.Exit();
return;
}
Status("Caching Attributes...");
AttributeFunctions.PopulateAttributeIndexes();
Status("Collecting Field Info...");
DBControlExtensions.GetFieldLengths();
Status("Ready!");
Application.Run(new UserInterface.Forms.AssetManagement.MainForm());
}
catch (Exception ex)
{
ErrorHandling.ErrHandle(ex, System.Reflection.MethodBase.GetCurrentMethod());
Application.Exit();
}
}
