private void AddOrUpdateNodeException(NeoMonitorContext scopedCtx, Node dbNode, long latency)
{
int nodeId = dbNode.Id;
var nodeEx = scopedCtx.NodeExceptionList.AsNoTracking().FirstOrDefault(e => e.Url == dbNode.Url && e.ExceptionHeight == dbNode.Height);
if (nodeEx is null)
{
int interval = (int)Math.Round((DateTime.Now - dbNode.LastUpdateTime).TotalSeconds, 0);
string url = dbNode.Url;
int height = dbNode.Height.Value;
_contextActions.Add((ctx) =>
{
ctx.NodeExceptionList.Add(new NodeException
{
Url = url,
ExceptionHeight = height,
GenTime = DateTime.Now,
Intervals = interval
});
});
AddOrUpdateAction(_nodeActionDict, nodeId, n => { n.Latency = latency; n.ExceptionCount++; });
}
else
{
AddOrUpdateAction(_nodeActionDict, nodeId, n => { n.Latency = latency; });
int nodeExId = nodeEx.Id;
int intervals = (int)Math.Round((DateTime.Now - nodeEx.GenTime).TotalSeconds, 0);
AddOrUpdateAction(_nodeExceptionActionDict, nodeExId, n => n.Intervals = intervals);
}
}
private async Task GetNodeHeightAsync(NeoMonitorContext scopedCtx, Node dbNode)
{
var sw = Stopwatch.StartNew();
int?height = await _rpcService.GetBlockCountAsync(dbNode.Url);
sw.Stop();
long latency = sw.ElapsedMilliseconds;
int nodeId = dbNode.Id;
if (height.HasValue)
{
if (!dbNode.Height.HasValue || height > dbNode.Height)
{
AddOrUpdateAction(_nodeActionDict, nodeId, n => { n.Latency = latency; n.Height = height; });
}
else if (height == dbNode.Height)
{
AddOrUpdateNodeException(scopedCtx, dbNode, latency);
}
}
else
{
AddOrUpdateAction(_nodeActionDict, nodeId, n => { n.Latency = -1; n.LastUpdateTime = DateTime.Now; });
}
}
private void ExecuteActionsAsync(NeoMonitorContext ctx)
{
foreach (var item in _nodeActionDict)
{
var node = ctx.Nodes.FirstOrDefault(p => p.Id == item.Key);
if (node != null)
{
item.Value.Invoke(node);
}
}
foreach (var item in _nodeExceptionActionDict)
{
var node = ctx.NodeExceptionList.FirstOrDefault(p => p.Id == item.Key);
if (node != null)
{
item.Value.Invoke(node);
}
}
foreach (var item in _contextActions)
{
item.Invoke(ctx);
}
}
