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UsageAwareLogger.cs
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UsageAwareLogger.cs
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using softaware.UsageAware;
using System.Diagnostics;
namespace softaware.Cqs.Decorators.UsageAware;
/// <summary>
/// Logs and measures duration of the execution of a command or a query.
/// </summary>
/// <typeparam name="TRequest">The type of the request to log.</typeparam>
/// <typeparam name="TResult">The type of the result.</typeparam>
public class UsageAwareLogger<TRequest, TResult>
{
private enum LogType
{
Command,
Query
}
private static readonly string Area;
private static readonly string Action;
private static readonly LogType Type;
private readonly IUsageAwareLogger logger;
static UsageAwareLogger()
{
var type = typeof(TRequest);
Area = type.Namespace.Substring(type.Namespace.LastIndexOf('.') + 1);
Action = type.Name;
Type = type.GetInterface("ICommand`1")?.Namespace == "softaware.Cqs" ? LogType.Command : LogType.Query;
}
public UsageAwareLogger(IUsageAwareLogger logger) =>
this.logger = logger ?? throw new ArgumentNullException(nameof(logger));
public async Task<Task> TimeAndLogAsync(Func<Task> execute)
{
var watch = Stopwatch.StartNew();
var task = execute();
await task;
var additionalProperties = new Dictionary<string, string>()
{
{ "duration", watch.Elapsed.ToString() },
{ "type", Type.ToString() }
};
await this.logger.TrackActionAsync(Area, Action, additionalProperties);
return task;
}
}