public static IGMethod MCreateExecuteAsyncMethod(string gAccessModifier = "")
{
var gMethodDeclaration = new GMethodDeclaration(gName: "ExecuteAsync", gType: "Task",
gVisibility: "protected", gAccessModifier: gAccessModifier, isConstructor: false,
gArguments: new Dictionary <IPhilote <IGArgument>, IGArgument>());
foreach (var kvp in new Dictionary <string, string>()
{
{ "genericHostsCancellationToken", "CancellationTokenFromCaller " }
})
{
var gMethodArgument = new GArgument(kvp.Key, kvp.Value);
gMethodDeclaration.GArguments[gMethodArgument.Philote] = gMethodArgument;
}
var gBody = new GBody(gStatements: new List <string>()
{
"#region Create linkedCancellationSource and linkedCancellationToken",
" //// Combine the cancellation tokens,so that either can stop this HostedService",
" //linkedCancellationTokenSource = CancellationTokenSource.CreateLinkedTokenSource(internalCancellationToken, externalCancellationToken);",
" //var linkedCancellationToken = linkedCancellationTokenSource.Token;",
"#endregion",
"#region Register actions with the CancellationTokenFromCaller (s)",
" //externalCancellationToken.Register(() => Logger.LogDebug(DebugLocalizer[\"{0} {1} externalCancellationToken has signalled stopping.\"], \"ConsoleMonitorBackgroundService\", \"externalCancellationToken\"));",
" //internalCancellationToken.Register(() => Logger.LogDebug(DebugLocalizer[\"{0} {1} internalCancellationToken has signalled stopping.\"], \"ConsoleMonitorBackgroundService\", \"internalCancellationToken\"));",
" //linkedCancellationToken.Register(() => Logger.LogDebug(DebugLocalizer[\"{0} {1} linkedCancellationToken has signalled stopping.\"], \"ConsoleMonitorBackgroundService\", \"linkedCancellationToken\"));",
"#endregion",
"#region Instantiate this service's Data structure",
" //DataInitializationInStartAsyncReplacementPattern",
"#endregion",
"// Wait for the conjoined cancellation token (or individually if the hosted service does not define its own internal cts)",
"// WaitHandle.WaitAny(new[] { linkedCancellationToken.WaitHandle });",
"Logger.LogDebug(DebugLocalizer[\"{0} {1} ConsoleMonitorBackgroundService is stopping due to \"], \"ConsoleMonitorBackgroundService\", \"ExecuteAsync\"); // add third parameter for internal or external",
"AssemblyUnitNameReplacementPatternBaseData.Dispose();",
});
GComment gComment = new GComment(new List <string>()
{
"/// <summary>",
"/// Called by the genericHost to start the Backgroundservice.",
"/// Sets up data structures",
"/// </summary>",
"/// <param name=\"externalCancellationToken\"></param>",
"/// <returns></returns>",
});
return(new GMethod(gMethodDeclaration, gBody, gComment));
}
public static IGClass AddTConstructorAutoPropertyGroup(this IGClass gClass, IPhilote <IGMethod> gMethodId, string gAutoPropertyName, string gType, IPhilote <IGPropertyGroup> gPropertyGroupId = default, string?gAccessors = "{ get;}", string?gVisibility = default)
{
var gProperty = new GProperty(gAutoPropertyName.ToUpperFirstChar(), gType, gAccessors, gVisibility);
if (gClass.GPropertyGroups != null && gClass.GPropertyGroups.ContainsKey(gPropertyGroupId))
{
gClass.GPropertyGroups[gPropertyGroupId].GPropertys[gProperty.Philote] = gProperty;
}
else
{
throw new Exception(string.Format("{0} not found in the PropertyGroups of {1}", gPropertyGroupId.ID.ToString(), gClass.GName));
}
IGMethod gMethod = default;
if (gClass.GMethods != null && gClass.GMethods.ContainsKey(gMethodId))
{
gMethod = gClass.GMethods[gMethodId];
}
else if (gClass.GMethodGroups != null)
{
foreach (var kvp in gClass.GMethodGroups)
{
if (kvp.Value.GMethods.ContainsKey(gMethodId))
{
var gMethodGroup = kvp.Value;
gMethod = gMethodGroup.GMethods[gMethodId];
}
}
}
if (gMethod == null)
{
throw new Exception(string.Format("{0} not found in the Methods or MethodGroups of {1}", gMethodId.ID.ToString(), gClass.GName));
}
GArgument gArgument = new GArgument(gAutoPropertyName.ToLowerFirstChar(), gType);
gMethod.GDeclaration.GArguments[gArgument.Philote] = gArgument;
gMethod.GBody.GStatements.Add($"{gAutoPropertyName.ToUpperFirstChar()} = {gAutoPropertyName.ToLowerFirstChar()} ?? throw new ArgumentNullException(nameof({gAutoPropertyName.ToLowerFirstChar()}));");
return(gClass);
}
public static IGMethod MCreateStopAsyncMethod(string gAccessModifier = "")
{
var gMethodDeclaration = new GMethodDeclaration(gName: "StopAsync", gType: "Task",
gVisibility: "public", gAccessModifier: gAccessModifier, isConstructor: false,
gArguments: new Dictionary <IPhilote <IGArgument>, IGArgument>());
foreach (var kvp in new Dictionary <string, string>()
{
{ "genericHostsCancellationToken", "CancellationTokenFromCaller " }
})
{
var gMethodArgument = new GArgument(kvp.Key, kvp.Value);
gMethodDeclaration.GArguments[gMethodArgument.Philote] = gMethodArgument;
}
var gBody = new GBody(gStatements: new List <string>()
{
"// StopAsync issued in both IHostedService and IHostLifetime interfaces",
"// This IS called when the user closes the ConsoleWindow with the windows top right pane \"x (close)\" icon",
"// This IS called when the user hits ctrl-C in the console window",
"// After Ctrl-C and after this method exits, the Debugger",
"// shows an unhandled Exception: System.OperationCanceledException: 'The operation was canceled.'",
"// See also discussion of Stop async in the following attributions.",
"// Attribution to https://stackoverflow.com/questions/51044781/graceful-shutdown-with-generic-host-in-net-core-2-1",
"// Attribution to https://stackoverflow.com/questions/52915015/how-to-apply-hostoptions-shutdowntimeout-when-configuring-net-core-generic-host for OperationCanceledException notes",
//Not sure if this is the right place for the dispose
"// DataDisposalInStopAsyncReplacementPattern",
"//InternalCancellationTokenSource.Cancel();",
"// Defer completion promise, until our application has reported it is done.",
"// return TaskCompletionSource.Task;",
"//Stop(); // would call the servicebase stop if this was a generic hosted service ??",
"//return Task.CompletedTask;"
});
GComment gComment = new GComment(new List <string>()
{
});
return(new GMethod(gMethodDeclaration, gBody, gComment));
}
