/// <inheritdoc />
public void Write(TextWriter textWriter, GraphitePoint point, bool writeTimestamp = true)
{
if (textWriter == null)
{
throw new ArgumentNullException(nameof(textWriter));
}
var hasPrevious = false;
var measurementWriter = new StringWriter();
measurementWriter.Write(_prefix);
var tagsDictionary = point.Tags.ToDictionary(GraphiteSyntax.EscapeName);
if (tagsDictionary.TryGetValue("mtype", out var metricType) && !string.IsNullOrWhiteSpace(metricType))
{
measurementWriter.Write(metricType);
hasPrevious = true;
}
if (hasPrevious)
{
measurementWriter.Write(".");
}
measurementWriter.Write(GraphiteSyntax.EscapeName(point.Measurement, true));
var tags = tagsDictionary.Where(tag => !ExcludeTags.Contains(tag.Key));
foreach (var tag in tags)
{
measurementWriter.Write('.');
measurementWriter.Write(GraphiteSyntax.EscapeName(tag.Key));
measurementWriter.Write('.');
measurementWriter.Write(tag.Value);
}
measurementWriter.Write('.');
var prefix = measurementWriter.ToString();
var utcTimestamp = point.UtcTimestamp ?? DateTime.UtcNow;
foreach (var f in point.Fields)
{
textWriter.Write(prefix);
textWriter.Write(GraphiteSyntax.EscapeName(f.Key));
textWriter.Write(' ');
textWriter.Write(GraphiteSyntax.FormatValue(f.Value));
textWriter.Write(' ');
textWriter.Write(GraphiteSyntax.FormatTimestamp(utcTimestamp));
textWriter.Write('\n');
}
}
public void Can_format_timestamp()
{
var dateTime = new DateTime(2017, 01, 01, 1, 1, 1, DateTimeKind.Utc);
GraphiteSyntax.FormatTimestamp(dateTime).Should().Be("1483232461");
}