private async Task <bool> StepAsync(CancellationToken cancellation)
{
var oldState = State;
StatusResult status = null;
try
{
switch (State)
{
case NBXplorerState.NotConnected:
status = await _Client.GetStatusAsync(cancellation);
if (status != null)
{
if (status.IsFullySynched)
{
State = NBXplorerState.Ready;
}
else
{
State = NBXplorerState.Synching;
}
}
break;
case NBXplorerState.Synching:
status = await _Client.GetStatusAsync(cancellation);
if (status == null)
{
State = NBXplorerState.NotConnected;
}
else if (status.IsFullySynched)
{
State = NBXplorerState.Ready;
}
break;
case NBXplorerState.Ready:
status = await _Client.GetStatusAsync(cancellation);
if (status == null)
{
State = NBXplorerState.NotConnected;
}
else if (!status.IsFullySynched)
{
State = NBXplorerState.Synching;
}
break;
}
}
catch when(cancellation.IsCancellationRequested)
{
}
public async Task UpdateClientState(ExplorerClient client, CancellationToken cancellation)
{
_logger.LogInformation($"Updating summary for {client.CryptoCode}");
var state = (NBXplorerState?)null;
string error = null;
StatusResult status = null;
try
{
status = await client.GetStatusAsync(cancellation);
if (status == null)
{
state = NBXplorerState.NotConnected;
}
else if (status.IsFullySynched)
{
state = NBXplorerState.Ready;
}
else if (!status.IsFullySynched)
{
state = NBXplorerState.Synching;
}
}
catch (Exception ex) when(!cancellation.IsCancellationRequested)
{
_logger.LogWarning($"Could not update summary for {client.CryptoCode} because {ex.Message}");
error = ex.Message;
}
if (status != null && error == null && status.NetworkType != _options.NetworkType)
{
error =
$"{client.CryptoCode}: NBXplorer is on a different ChainType (actual: {status.NetworkType}, expected: {_options.NetworkType})";
}
if (error != null)
{
state = NBXplorerState.NotConnected;
}
var summary = new NBXplorerSummary()
{
Status = status,
State = state.GetValueOrDefault(NBXplorerState.NotConnected),
Error = error
};
_logger.LogInformation($"summary updated {client.CryptoCode}");
_summaries.AddOrReplace(client.CryptoCode.ToUpperInvariant(), summary);
}
private async Task <StatusResult> GetStatusWithTimeout()
{
CancellationTokenSource cts = new CancellationTokenSource();
using (cts)
{
var cancellation = cts.Token;
while (!cancellation.IsCancellationRequested)
{
try
{
var status = await _Client.GetStatusAsync(cancellation).ConfigureAwait(false);
return(status);
}
catch (OperationCanceledException) { }
catch { }
}
}
return(null);
}
private async Task <bool> StepAsync(CancellationToken cancellation)
{
var oldState = State;
string error = null;
StatusResult status = null;
try
{
switch (State)
{
case NBXplorerState.NotConnected:
status = await _Client.GetStatusAsync(cancellation);
if (status != null)
{
if (status.IsFullySynched)
{
State = NBXplorerState.Ready;
}
else
{
State = NBXplorerState.Synching;
}
}
break;
case NBXplorerState.Synching:
status = await _Client.GetStatusAsync(cancellation);
if (status == null)
{
State = NBXplorerState.NotConnected;
}
else if (status.IsFullySynched)
{
State = NBXplorerState.Ready;
}
break;
case NBXplorerState.Ready:
status = await _Client.GetStatusAsync(cancellation);
if (status == null)
{
State = NBXplorerState.NotConnected;
}
else if (!status.IsFullySynched)
{
State = NBXplorerState.Synching;
}
break;
}
}
catch (Exception ex) when(!cancellation.IsCancellationRequested)
{
error = ex.Message;
}
if (status == null && error == null)
{
error = $"{_Network.CryptoCode}: NBXplorer does not support this cryptocurrency";
}
if (status != null && error == null)
{
if (status.ChainType != _Network.NBXplorerNetwork.DefaultSettings.ChainType)
{
error = $"{_Network.CryptoCode}: NBXplorer is on a different ChainType (actual: {status.ChainType}, expected: {_Network.NBXplorerNetwork.DefaultSettings.ChainType})";
}
}
if (error != null)
{
State = NBXplorerState.NotConnected;
status = null;
_Aggregator.Publish(new NBXplorerErrorEvent(_Network, error));
}
if (oldState != State)
{
if (State == NBXplorerState.Synching)
{
PollInterval = TimeSpan.FromSeconds(10);
}
else
{
PollInterval = TimeSpan.FromMinutes(1);
}
_Aggregator.Publish(new NBXplorerStateChangedEvent(_Network, oldState, State));
}
_Dashboard.Publish(_Network, State, status, error);
return(oldState != State);
}