private bool MaybeReadAllFromCache(JsonOperationContext ctx, AggressiveCacheOptions options)
{
DisposeCache();
bool readAllFromCache = options != null;
var trackChanges = readAllFromCache && options.Mode == AggressiveCacheMode.TrackChanges;
for (int i = 0; i < _commands.Count; i++)
{
var command = _commands[i];
if (command.Headers.ContainsKey(Constants.Headers.IfNoneMatch))
{
continue; // command already explicitly handling setting this, let's not touch it.
}
var cacheKey = GetCacheKey(command, out _);
var cachedItem = _httpCache.Get(ctx, cacheKey, out var changeVector, out var cached);
if (cachedItem.Item == null)
{
using (cachedItem)
{
readAllFromCache = false;
continue;
}
}
if (readAllFromCache && (trackChanges && cachedItem.MightHaveBeenModified || cachedItem.Age > options.Duration || command.CanCacheAggressively == false))
{
readAllFromCache = false;
}
command.Headers[Constants.Headers.IfNoneMatch] = $"\"{changeVector}\"";
_cached ??= new Cached(_commands.Count);
_cached.Values[i] = (cachedItem, cached);
}
if (readAllFromCache)
{
using (_cached)
{
Result = new List <GetResponse>(_commands.Count);
for (int i = 0; i < _commands.Count; i++)
{
// ReSharper disable once PossibleNullReferenceException
var(_, cached) = _cached.Values[i];
Result.Add(new GetResponse {
Result = cached?.Clone(ctx), StatusCode = HttpStatusCode.NotModified
});
}
}
_cached = null;
}
return(readAllFromCache);
}
internal AggressiveCacheConventions(DocumentConventions conventions)
{
_conventions = conventions;
_aggressiveCacheOptions = new AggressiveCacheOptions(TimeSpan.FromDays(1), AggressiveCacheMode.TrackChanges);
}
