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[http] Avoid boxing of status code tags #4361

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merged 4 commits into from
Apr 4, 2023
Merged

[http] Avoid boxing of status code tags #4361

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00f3632
Avoid boxing of status code tags.
CodeBlanch Apr 4, 2023
92ceb9a
CHANGELOG patch.
CodeBlanch Apr 4, 2023
dd3ab2a
Remove duplicate mappings.
CodeBlanch Apr 4, 2023
b4ba9dc
Array lookup for better perf.
CodeBlanch Apr 4, 2023
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93 changes: 13 additions & 80 deletions src/OpenTelemetry.Instrumentation.Http/Implementation/TelemetryHelper.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -20,92 +20,25 @@ namespace OpenTelemetry.Instrumentation.Http.Implementation;

internal static class TelemetryHelper
{
#pragma warning disable SA1509 // Opening braces should not be preceded by blank line
// Status Codes listed at http://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
private static readonly Dictionary<HttpStatusCode, object> BoxedStatusCodes = new()
{
{ HttpStatusCode.Continue, 100 },
{ HttpStatusCode.SwitchingProtocols, 101 },
/*{ 102, 102 },*/

{ HttpStatusCode.OK, 200 },
{ HttpStatusCode.Created, 201 },
{ HttpStatusCode.Accepted, 202 },
{ HttpStatusCode.NonAuthoritativeInformation, 203 },
{ HttpStatusCode.NoContent, 204 },
{ HttpStatusCode.ResetContent, 205 },
{ HttpStatusCode.PartialContent, 206 },
/*{ 207, 207 },
{ 208, 208 },
{ 226, 226 },*/

{ HttpStatusCode.MultipleChoices, 300 },
/* { HttpStatusCode.Ambiguous, 300 }, */
{ HttpStatusCode.MovedPermanently, 301 },
/* { HttpStatusCode.Moved, 301 }, */
{ HttpStatusCode.Found, 302 },
/* { HttpStatusCode.Redirect, 302 }, */
{ HttpStatusCode.SeeOther, 303 },
/* { HttpStatusCode.RedirectMethod, 303 }, */
{ HttpStatusCode.NotModified, 304 },
{ HttpStatusCode.UseProxy, 305 },
{ HttpStatusCode.Unused, 306 },
{ HttpStatusCode.TemporaryRedirect, 307 },
/* { HttpStatusCode.RedirectKeepVerb, 307 }, */
/*{ 308, 308 },*/

{ HttpStatusCode.BadRequest, 400 },
{ HttpStatusCode.Unauthorized, 401 },
{ HttpStatusCode.PaymentRequired, 402 },
{ HttpStatusCode.Forbidden, 403 },
{ HttpStatusCode.NotFound, 404 },
{ HttpStatusCode.MethodNotAllowed, 405 },
{ HttpStatusCode.NotAcceptable, 406 },
{ HttpStatusCode.ProxyAuthenticationRequired, 407 },
{ HttpStatusCode.RequestTimeout, 408 },
{ HttpStatusCode.Conflict, 409 },
{ HttpStatusCode.Gone, 410 },
{ HttpStatusCode.LengthRequired, 411 },
{ HttpStatusCode.PreconditionFailed, 412 },
{ HttpStatusCode.RequestEntityTooLarge, 413 },
{ HttpStatusCode.RequestUriTooLong, 414 },
{ HttpStatusCode.UnsupportedMediaType, 415 },
{ HttpStatusCode.RequestedRangeNotSatisfiable, 416 },
{ HttpStatusCode.ExpectationFailed, 417 },
/*{ 418, 418 },
{ 419, 419 },
{ 421, 421 },
{ 422, 422 },
{ 423, 423 },
{ 424, 424 },*/
{ HttpStatusCode.UpgradeRequired, 426 },
/*{ 428, 428 },
{ 429, 429 },
{ 431, 431 },
{ 451, 451 },
{ 499, 499 },*/
private static readonly object[] BoxedStatusCodes;

{ HttpStatusCode.InternalServerError, 500 },
{ HttpStatusCode.NotImplemented, 501 },
{ HttpStatusCode.BadGateway, 502 },
{ HttpStatusCode.ServiceUnavailable, 503 },
{ HttpStatusCode.GatewayTimeout, 504 },
{ HttpStatusCode.HttpVersionNotSupported, 505 },
/*{ 506, 506 },
{ 507, 507 },
{ 508, 508 },
{ 510, 510 },
{ 511, 511 },*/
};
#pragma warning restore SA1509 // Opening braces should not be preceded by blank line
static TelemetryHelper()
{
BoxedStatusCodes = new object[500];
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@JamesNK FYI.

for (int i = 0, c = 100; i < BoxedStatusCodes.Length; i++, c++)
{
BoxedStatusCodes[i] = c;
}
}

public static object GetBoxedStatusCode(HttpStatusCode statusCode)
{
if (BoxedStatusCodes.TryGetValue(statusCode, out var result))
int intStatusCode = (int)statusCode;
if (intStatusCode >= 100 && intStatusCode < 600)
{
return result;
return BoxedStatusCodes[intStatusCode - 100];
}

return (int)statusCode;
return intStatusCode;
}
}