private TMetadata ReadMetricMetadata(BinaryReader reader, IMetricBuilder <TMetadata> metricBuilder, ushort version, int maxMetricStringsLength, int maxMetricNamespaceStringsLength)
{
var metricNamespace = string.Empty;
// In versions 0-2 Metric Namespace was part of the Metric data, from version 3 it became a part of Metric Metadata
if (version >= 3)
{
metricNamespace = this.ReadStringByIndex(reader);
if (metricNamespace.Length > maxMetricNamespaceStringsLength)
{
throw new MetricSerializationException($"Namespace string in the packet exceeds preconfigured length. Packet is corrupted. MaxLength:{maxMetricNamespaceStringsLength}, Value:{metricNamespace}.", null);
}
}
var metricName = this.ReadStringByIndex(reader);
if (metricName.Length > maxMetricStringsLength)
{
throw new MetricSerializationException($"Metric name string in the packet exceeds preconfigured length. Packet is corrupted. MaxLength:{maxMetricStringsLength}, Value:{metricName}.", null);
}
var count = SerializationUtils.ReadUInt32FromBase128(reader);
var dimensionNames = new List <string>((int)count);
for (var i = 0; i < count; ++i)
{
var dimensionName = this.ReadStringByIndex(reader);
if (dimensionName.Length > maxMetricStringsLength)
{
throw new MetricSerializationException($"Dimension name string in the packet exceeds preconfigured length. Packet is corrupted. MaxLength:{maxMetricStringsLength}, Value:{dimensionName}.", null);
}
dimensionNames.Add(dimensionName);
}
return(metricBuilder.CreateMetadata(metricNamespace, metricName, dimensionNames));
}