public virtual bool TryDownloadPrefetchPacks(GitProcess gitProcess, long latestTimestamp, out List <string> packIndexes)
{
EventMetadata metadata = CreateEventMetadata();
metadata.Add("latestTimestamp", latestTimestamp);
using (ITracer activity = this.Tracer.StartActivity("TryDownloadPrefetchPacks", EventLevel.Informational, Keywords.Telemetry, metadata))
{
long bytesDownloaded = 0;
long requestId = HttpRequestor.GetNewRequestId();
List <string> innerPackIndexes = null;
RetryWrapper <GitObjectsHttpRequestor.GitObjectTaskResult> .InvocationResult result = this.GitObjectRequestor.TrySendProtocolRequest(
requestId: requestId,
onSuccess: (tryCount, response) => this.DeserializePrefetchPacks(response, ref latestTimestamp, ref bytesDownloaded, ref innerPackIndexes, gitProcess),
onFailure: RetryWrapper <GitObjectsHttpRequestor.GitObjectTaskResult> .StandardErrorHandler(activity, requestId, "TryDownloadPrefetchPacks"),
method: HttpMethod.Get,
endPointGenerator: () => new Uri(
string.Format(
"{0}?lastPackTimestamp={1}",
this.GitObjectRequestor.CacheServer.PrefetchEndpointUrl,
latestTimestamp)),
requestBodyGenerator: () => null,
cancellationToken: CancellationToken.None,
acceptType: new MediaTypeWithQualityHeaderValue(GVFSConstants.MediaTypes.PrefetchPackFilesAndIndexesMediaType));
packIndexes = innerPackIndexes;
if (!result.Succeeded)
{
if (result.Result != null && result.Result.HttpStatusCodeResult == HttpStatusCode.NotFound)
{
EventMetadata warning = CreateEventMetadata();
warning.Add(TracingConstants.MessageKey.WarningMessage, "The server does not support " + GVFSConstants.Endpoints.GVFSPrefetch);
warning.Add(nameof(this.GitObjectRequestor.CacheServer.PrefetchEndpointUrl), this.GitObjectRequestor.CacheServer.PrefetchEndpointUrl);
activity.RelatedEvent(EventLevel.Warning, "CommandNotSupported", warning);
}
else
{
EventMetadata error = CreateEventMetadata();
error.Add("latestTimestamp", latestTimestamp);
error.Add("Exception", result.Error);
error.Add(nameof(this.GitObjectRequestor.CacheServer.PrefetchEndpointUrl), this.GitObjectRequestor.CacheServer.PrefetchEndpointUrl);
activity.RelatedWarning(error, "DownloadPrefetchPacks failed.", Keywords.Telemetry);
}
}
activity.Stop(new EventMetadata
{
{ "Area", EtwArea },
{ "Success", result.Succeeded },
{ "Attempts", result.Attempts },
{ "BytesDownloaded", bytesDownloaded },
});
return(result.Succeeded);
}
}
public bool TryDownloadPrefetchPacks(long latestTimestamp)
{
EventMetadata metadata = new EventMetadata();
metadata.Add("latestTimestamp", latestTimestamp);
using (ITracer activity = this.Tracer.StartActivity(nameof(this.TryDownloadPrefetchPacks), EventLevel.Informational, metadata))
{
long requestId = HttpRequestor.GetNewRequestId();
RetryWrapper <GitObjectsHttpRequestor.GitObjectTaskResult> .InvocationResult result = this.GitObjectRequestor.TrySendProtocolRequest(
requestId: requestId,
onSuccess: (tryCount, response) => this.DeserializePrefetchPacks(response, ref latestTimestamp),
onFailure: RetryWrapper <GitObjectsHttpRequestor.GitObjectTaskResult> .StandardErrorHandler(activity, requestId, nameof(this.TryDownloadPrefetchPacks)),
method: HttpMethod.Get,
endPointGenerator: () => new Uri(
string.Format(
"{0}?lastPackTimestamp={1}",
this.GitObjectRequestor.CacheServer.PrefetchEndpointUrl,
latestTimestamp)),
requestBodyGenerator: () => null,
acceptType: new MediaTypeWithQualityHeaderValue(GVFSConstants.MediaTypes.PrefetchPackFilesAndIndexesMediaType));
if (!result.Succeeded)
{
if (result.Result != null && result.Result.HttpStatusCodeResult == HttpStatusCode.NotFound)
{
EventMetadata warning = new EventMetadata();
warning.Add("ErrorMessage", "The server does not support " + GVFSConstants.Endpoints.GVFSPrefetch);
warning.Add(nameof(this.GitObjectRequestor.CacheServer.PrefetchEndpointUrl), this.GitObjectRequestor.CacheServer.PrefetchEndpointUrl);
activity.RelatedEvent(EventLevel.Warning, "CommandNotSupported", warning);
}
else
{
EventMetadata error = new EventMetadata();
error.Add("latestTimestamp", latestTimestamp);
error.Add("Exception", result.Error);
error.Add("ErrorMessage", "DownloadPrefetchPacks failed.");
error.Add(nameof(this.GitObjectRequestor.CacheServer.PrefetchEndpointUrl), this.GitObjectRequestor.CacheServer.PrefetchEndpointUrl);
activity.RelatedError(error);
}
}
return(result.Succeeded);
}
}
