private async Task <Device> TryGetDeviceAsync(AccessProvider accessProvider, string hostName, CancellationToken cancellationToken = new CancellationToken(), InformationCategory[] informationCategories = null, params InformationType[] informationTypes)
{
return(await Task.Run(async() =>
{
try
{
if (accessProvider != null)
{
var wmiAccessService = await accessProvider.GetAccessAsync(hostName).ConfigureAwait(false);
if (wmiAccessService != null)
{
return await TryGetDeviceAsync(wmiAccessService, cancellationToken, informationCategories, informationTypes).ConfigureAwait(false);
}
}
}
catch (OperationCanceledException operationCanceledException)
{
LogEventHandler.TaskIncompleted(operationCanceledException);
}
catch (Exception exception)
{
var wmiException = new WMIGeneralException(hostName, exception);
LogEventHandler.Exception(wmiException);
}
return null;
}, cancellationToken).ConfigureAwait(false));
}
private async Task <Device> TryGetDeviceAsync(WMIAccessService wmiAccessService, CancellationToken cancellationToken = new CancellationToken(), InformationCategory[] informationCategories = null, params InformationType[] informationTypes)
{
if (wmiAccessService != null)
{
try
{
return(await Task.Run(async() =>
{
try
{
if (wmiAccessService.Connected)
{
var device = await new Device()
.WithWMIAccessService(wmiAccessService)
.WithInformationCategories(informationCategories)
.WithInformationTypes(informationTypes)
.WithQueries(Queries)
.InitializeAsync(cancellationToken)
.ConfigureAwait(false);
return device;
}
}
catch (OperationCanceledException operationCanceledException)
{
LogEventHandler.TaskIncompleted(operationCanceledException);
}
catch (Exception exception)
{
var wmiException = new WMIGeneralException(wmiAccessService.EndPoint, exception);
LogEventHandler.Exception(wmiException);
}
return null;
}, cancellationToken).ConfigureAwait(false));
}
catch (OperationCanceledException operationCanceledException)
{
LogEventHandler.TaskIncompleted(operationCanceledException);
}
catch (Exception)
{
if (!cancellationToken.IsCancellationRequested)
{
throw;
}
}
}
return(null);
}
/// <summary>
/// Initialize information gathering, when method is finished, properties of this Device will be filled with the gathered data
/// </summary>
/// <param name="cancellationToken">To cancel the Tasks started by calling the method</param>
/// <returns>Returns awaitable Task with this Device</returns>
public async Task <Device> InitializeAsync(CancellationToken cancellationToken = new CancellationToken())
{
EvaluateSearchOptions();
var start = DateTime.Now;
try
{
await GetDeviceInformationAsync(cancellationToken).ConfigureAwait(false);
}
catch (OperationCanceledException operationCanceledException)
{
LogEventHandler.TaskIncompleted(operationCanceledException);
}
ExecutionTime = DateTime.Now - start;
return(this);
}
