protected override void Dispose(bool explicitDispose)
{
if (explicitDispose)
{
_appStartedSubscription?.Dispose();
_lastComponentActivation?.Dispose();
}
_appStartedSubscription = null;
_retryOptions = null;
_lastComponentActivation = null;
_activateControlFactory = null;
//
base.Dispose(explicitDispose);
}
// TODO: Put strings into the resources.
//
void P_HandleComponentActivationAttemptResult(
RetrySettings retryOptions,
IActivatableXAppScopeInstance component,
int retryAttemptIndex,
Task activationTask,
XFullCorrelationId correlationId,
CancellationToken ct)
{
//
retryOptions = retryOptions.EnsureNotNull(nameof(retryOptions)).AsReadOnly().EnsureValid();
component.EnsureNotNull(nameof(component));
retryAttemptIndex.Arg(nameof(retryAttemptIndex)).EnsureNotLessThan(-1);
activationTask.EnsureNotNull(nameof(activationTask));
//
var logMessagePrologue = $"Отложенная активация. ИД корреляции: {correlationId.FmtStr().G()}.";
if (activationTask.IsFaulted || activationTask.IsCanceled)
{
if (activationTask.IsCanceled)
{
#if !DO_NOT_USE_EON_LOGGING_API
this
.IssueWarning(
messagePrologue: logMessagePrologue,
message: $"Активация компонента была прервана или отменена.{Environment.NewLine}Повторная попытка не предусмотрена опциями активации компонента.{Environment.NewLine}\tКомпонент:{component.FmtStr().GNLI2()}",
severityLevel: SeverityLevel.Medium);
#endif
}
else
{
string retryActivationLogMessage;
bool doRetryActivation;
if (retryOptions.IsDisabled)
{
doRetryActivation = false;
retryActivationLogMessage = $"Повторная попытка активации компонента запрещена настройками активации (см. '{nameof(RetrySettings)}.{nameof(RetrySettings.IsDisabled)}').";
}
else if (retryOptions.MaxCount == -1)
{
doRetryActivation = true;
retryActivationLogMessage = $"Повторная попытка активации компонента будет выполнена {(retryOptions.Interval == TimeoutDuration.Zero ? "немедленно" : $"через '{retryOptions.Interval.ToString()}'")}.";
}
else if (retryOptions.MaxCount == 0)
{
doRetryActivation = false;
retryActivationLogMessage = $"Повторная попытка не предусмотрена настройками активации компонента (см. '{nameof(RetrySettings)}.{nameof(RetrySettings.MaxCount)}').";
}
else if ((retryAttemptIndex + 1) < retryOptions.MaxCount)
{
doRetryActivation = true;
retryActivationLogMessage = $"Повторная попытка активации компонента ({retryAttemptIndex + 2:d} из {retryOptions.MaxCount:d}) будет выполнена {(retryOptions.Interval == TimeoutDuration.Zero ? "немедленно" : $"через '{retryOptions.Interval.ToString()}'")}.";
}
else
{
doRetryActivation = false;
retryActivationLogMessage = $"Повторной попытки активации компонента не будет, так как все попытки исчерпаны (кол-во попыток {retryOptions.MaxCount:d}).";
}
#if !DO_NOT_USE_EON_LOGGING_API
this
.IssueError(
messagePrologue: logMessagePrologue,
message: $"Ошибка активации компонента.{Environment.NewLine}{retryActivationLogMessage}{Environment.NewLine}\tКомпонент:{Environment.NewLine}{component.ToString().IndentLines2()}",
error: activationTask.Exception,
includeErrorInIssueFaultException: true,
severityLevel: activationTask.Exception.GetMostHighSeverityLevel(baseLevel: SeverityLevel.Medium));
#endif
//
if (doRetryActivation)
{
if (retryOptions.Interval == TimeoutDuration.Zero)
{
P_StartComponentActivationAttempt(retryOptions: retryOptions, rethrowException: false, retryAttemptIndex: retryAttemptIndex + 1, correlationId: correlationId, ct: ct);
}
else
{
TaskUtilities
.Delay(duration: retryOptions.Interval)
.ContinueWith(
continuationAction:
locDelayTask
=>
P_StartComponentActivationAttempt(
retryOptions: retryOptions,
rethrowException: false,
retryAttemptIndex: retryAttemptIndex + 1,
ct: ct,
correlationId: correlationId),
continuationOptions: TaskContinuationOptions.PreferFairness | TaskContinuationOptions.OnlyOnRanToCompletion,
cancellationToken: ct,
scheduler: TaskScheduler.Default);
}
}
}
}
else
{
#if !DO_NOT_USE_EON_LOGGING_API
this
.IssueInformation(
messagePrologue: logMessagePrologue,
message: $"Активация компонента успешно выполнена.{Environment.NewLine}\tКомпонент:{component.FmtStr().GNLI2()}",
severityLevel: SeverityLevel.Medium);
#endif
}
}
// TODO: Put strings into the resources.
//
void P_StartComponentActivationAttempt(
RetrySettings retryOptions,
bool rethrowException,
int retryAttemptIndex,
XFullCorrelationId correlationId,
CancellationToken ct,
Func <bool> breakCondition = default)
{
//
retryOptions = retryOptions.EnsureNotNull(nameof(retryOptions)).AsReadOnly().EnsureValid();
//
if (breakCondition is null)
{
breakCondition = () => ct.IsCancellationRequested || HasDeactivationRequested || !IsActive;
}
if (!breakCondition())
{
var logMessagePrologue = $"Отложенная активация. ИД корреляции: {correlationId.FmtStr().G()}.";
try {
IActivatableXAppScopeInstance componentNewInstance = default;
P_ComponentActivationAttempt newActivation = default;
P_ComponentActivationAttempt existingActivation = default;
for (; ;)
{
existingActivation = TryReadDA(ref _lastComponentActivation, considerDisposeRequest: true);
if (existingActivation is null)
{
if (breakCondition())
{
cleanup(ref componentNewInstance, ref newActivation);
break;
}
else
{
newActivation =
newActivation
?? new P_ComponentActivationAttempt(
retryIndex: retryAttemptIndex,
component: componentNewInstance = P_CreateComponent(),
correlationId: correlationId,
ct: ct);
if (itrlck.UpdateBool(location: ref _lastComponentActivation, value: newActivation, comparand: existingActivation))
{
if (breakCondition())
{
itrlck.SetNullBool(location: ref _lastComponentActivation, comparand: newActivation);
cleanup(ref componentNewInstance, ref newActivation);
}
break;
}
else
{
continue;
}
}
}
else
{
cleanup(ref componentNewInstance, ref newActivation);
break;
}
}
//
if (!(newActivation is null))
{
newActivation
.ActivateControl
.StartAsync()
.ContinueWith(
continuationAction:
locTask => {
var locCaughtException = default(Exception);
try {
if (locTask.IsCanceled || locTask.IsFaulted)
{
itrlck.SetNullBool(location: ref _lastComponentActivation, comparand: newActivation);
}
//
P_HandleComponentActivationAttemptResult(
retryOptions: retryOptions,
component: componentNewInstance,
retryAttemptIndex: newActivation.RetryAttemptIndex,
activationTask: locTask,
correlationId: correlationId,
ct: ct);
}
catch (Exception locException) {
locCaughtException = locException;
throw;
}
finally {
if (locTask.IsCanceled || locTask.IsFaulted)
{
try {
cleanup(ref componentNewInstance, ref newActivation);
}
catch (Exception locException) {
if (locCaughtException is null)
{
throw;
}
else
{
throw new AggregateException(locCaughtException, locException);
}
}
}
}
},
continuationOptions: TaskContinuationOptions.PreferFairness);
}
}
catch (Exception exception) {
if (rethrowException)
{
throw new EonException(message: $"Ошибка запуска попытки активации.{Environment.NewLine}\tКомпонент:{this.FmtStr().GNLI2()}", innerException: exception);
}
else
{
#if !DO_NOT_USE_EON_LOGGING_API
this
.IssueError(
messagePrologue: logMessagePrologue,
message: "Ошибка запуска попытки активации.",
error: exception,
includeErrorInIssueFaultException: true,
severityLevel: exception.GetMostHighSeverityLevel(baseLevel: SeverityLevel.Medium));
#endif
}
}
}
//
void cleanup(ref IActivatableXAppScopeInstance locTarget, ref P_ComponentActivationAttempt locActivation)
{
var locCaughtExceptions = new List <Exception>();
try { locTarget?.Dispose(); locTarget = null; }
catch (Exception locException) { locCaughtExceptions.Add(locException); }
try { locActivation?.ActivateControl.StopAsync().WaitWithTimeout(); locActivation?.Dispose(); locActivation = null; }
catch (Exception locException) { locCaughtExceptions.Add(locException); }
if (locCaughtExceptions.Count > 0)
{
throw new AggregateException(innerExceptions: locCaughtExceptions);
}
}
}