public MetricsEntryResult RunMetricsCheck(string text, string metricName)
{
if (text == null)
{
throw new ArgumentNullException(nameof(text), "Text cannot be null");
}
if (metricName == null)
{
throw new ArgumentNullException(nameof(metricName), "Metric name cannot be null");
}
MetricCaller mc = _options.Value.Callers.Single(metric => metric.Name == metricName);
if (mc == null)
{
throw new ArgumentNullException(nameof(metricName), $"There is no metric with such name: {metricName}");
}
MetricsEntryResult metricsEntryResult = null;
using (IServiceScope scope = _scopeFactory.CreateScope())
{
metricsEntryResult = RunCheck(scope, mc, text);
}
if (metricsEntryResult == null)
{
throw new ArgumentNullException(nameof(metricsEntryResult), "Metric must return MetricEntryResult");
}
return(metricsEntryResult);
}
public MetricsEntryResult CheckMetric(string text)
{
MatchCollection matches = _regex.Matches(text);
MetricsEntryResult metricsEntryResult = new MetricsEntryResult(MetricName, Description)
{
Value = matches.Count > 0 ? $"Found {matches.Count} exclamation sentences" : "No exclamation sentences found"
};
return(metricsEntryResult);
}
private MetricsEntryResult RunCheck(IServiceScope scope, MetricCaller caller, string text)
{
IMetric metric = caller.Factory(scope.ServiceProvider);
if (text == null)
{
throw new ArgumentNullException($"{nameof(text)}", "Stream argument should be provided");
}
MetricsEntryResult result = metric.CheckMetric(text);
return(result);
}
public MetricsEntryResult CheckMetric(string text)
{
var character = text
.GroupBy(x => x)
.Where(x => !string.IsNullOrWhiteSpace(x.Key.ToString()))
.Select(x => new { key = x.Key, value = x.Count() })
.OrderByDescending(x => x.value)
.First();
MetricsEntryResult metricsEntryResult = new MetricsEntryResult(MetricName, Description)
{
Value = character == null ? "String migth be empty" :
$"The most frequent character is '{character.key}' and number of its occurences is {character.value}"
};
return(metricsEntryResult);
}
