public async Task <DataEncryptionKeyProperties> GetOrAddByNameLinkUriAsync(
Uri dekNameLinkUri,
string databaseId,
Func <CosmosDiagnosticsContext, CancellationToken, Task <DataEncryptionKeyProperties> > fetcher,
CosmosDiagnosticsContext diagnosticsContext,
CancellationToken cancellationToken)
{
CachedDekProperties cachedDekProperties = await this.DekPropertiesByNameLinkUriCache.GetAsync(
dekNameLinkUri,
null,
() => this.FetchAsync(fetcher, databaseId, diagnosticsContext, cancellationToken),
cancellationToken);
if (cachedDekProperties.ServerPropertiesExpiryUtc <= DateTime.UtcNow)
{
cachedDekProperties = await this.DekPropertiesByNameLinkUriCache.GetAsync(
dekNameLinkUri,
null,
() => this.FetchAsync(fetcher, databaseId, diagnosticsContext, cancellationToken),
cancellationToken,
forceRefresh : true);
}
this.DekPropertiesByRidSelfLinkCache.Set(cachedDekProperties.ServerProperties.SelfLink, cachedDekProperties);
return(cachedDekProperties.ServerProperties);
}
public void Set(string databaseId, Uri dekNameLinkUri, DataEncryptionKeyProperties dekProperties)
{
CachedDekProperties cachedDekProperties = new CachedDekProperties(databaseId, dekProperties, DateTime.UtcNow + this.dekPropertiesTimeToLive);
this.DekPropertiesByNameLinkUriCache.Set(dekNameLinkUri, cachedDekProperties);
this.DekPropertiesByRidSelfLinkCache.Set(dekProperties.SelfLink, cachedDekProperties);
}
public async Task RemoveAsync(Uri linkUri)
{
CachedDekProperties cachedDekProperties = await this.DekPropertiesByNameLinkUriCache.RemoveAsync(linkUri);
if (cachedDekProperties != null)
{
this.DekPropertiesByRidSelfLinkCache.Remove(cachedDekProperties.ServerProperties.SelfLink);
this.RawDekByRidSelfLinkCache.Remove(cachedDekProperties.ServerProperties.SelfLink);
}
}