private void ValidateVersion2(SamplingConfiguration samplingConfiguration, SamplingRule rule)
{
if (rule.Host == null || rule.HttpMethod == null || rule.UrlPath == null ||
rule.FixedTarget == -1 || rule.Rate == -1d || rule.ServiceName != null)
{
throw new InvalidSamplingConfigurationException(
string.Format(
CultureInfo.InvariantCulture,
@"Missing required fields for sampling rules ({0}). ""host"", ""http_method"", ""url_path"", ""fixed_target"", ""rate"" are required.",
rule));
}
}
private void Init(Stream stream)
{
using (var reader = new StreamReader(stream))
{
SamplingConfiguration samplingConfiguration = JsonMapper.ToObject <SamplingConfiguration>(reader);
if (samplingConfiguration == null)
{
throw new InvalidSamplingConfigurationException("The provided sampling configuration had invalid JSON format and cannot be parsed correctly.");
}
if (samplingConfiguration.Default == null)
{
throw new InvalidSamplingConfigurationException("No default sampling rule is provided. A default sampling rule is required.");
}
if (!SupportedSamplingConfigurationVersion.Contains(samplingConfiguration.Version))
{
throw new InvalidSamplingConfigurationException(
string.Format(
CultureInfo.InvariantCulture,
"The version of provided sampling configuration is not supported. Provided version = {0}, supported versions = {1}",
samplingConfiguration.Version, String.Join(", ", SupportedSamplingConfigurationVersion)));
}
DefaultRule = samplingConfiguration.Default;
var rules = new List <SamplingRule>();
if (samplingConfiguration.Rules != null)
{
foreach (var rule in samplingConfiguration.Rules) // contains supported versions.
{
if (IsValidVersion1(samplingConfiguration, rule))
{
rule.Host = rule.ServiceName;
}
else
{
ValidateVersion2(samplingConfiguration, rule); // rule.Host already parsed in rule.
}
rules.Add(rule);
}
}
Rules = rules;
}
}
private bool IsValidVersion1(SamplingConfiguration samplingConfiguration, SamplingRule rule)
{
if (samplingConfiguration.Version == 1)
{
if (rule.ServiceName == null || rule.HttpMethod == null || rule.UrlPath == null ||
rule.FixedTarget == -1 || rule.Rate == -1d || rule.Host != null)
{
throw new InvalidSamplingConfigurationException(
string.Format(
CultureInfo.InvariantCulture,
@"Missing required fields for sampling rules ({0}). ""service_name"", ""http_method"", ""url_path"", ""fixed_target"", ""rate"" are required.",
rule));
}
return(true);
}
return(false);
}
