private async Task <IEnumerable <ProxyDatabaseResult> > FetchResults(ulong account, ICacheEntry entry)
{
_logger.Information("Members for account {Account} not in cache, fetching", account);
using (var conn = await _conn.Obtain())
{
var results = (await conn.QueryAsync <PKMember, PKSystem, ProxyDatabaseResult>(
"select members.*, systems.* from members, systems, accounts where members.system = systems.id and accounts.system = systems.id and accounts.uid = @Uid",
(member, system) =>
new ProxyDatabaseResult {
Member = member, System = system
}, new { Uid = account })).ToList();
if (results.Count == 0)
{
// Long expiry for accounts with no system registered
entry.SetSlidingExpiration(TimeSpan.FromMinutes(5));
entry.SetAbsoluteExpiration(TimeSpan.FromHours(1));
}
else
{
// Shorter expiry if they already have a system
entry.SetSlidingExpiration(TimeSpan.FromMinutes(1));
entry.SetAbsoluteExpiration(TimeSpan.FromMinutes(5));
}
return(results);
}
}
private async Task <IEnumerable <Prize> > FetchPrizes(ICacheEntry arg)
{
arg.SetAbsoluteExpiration(TimeSpan.FromMinutes(5));
arg.SetSlidingExpiration(TimeSpan.FromSeconds(30));
return(await FetchPrizes());
}
public ICacheEntry CreateEntry(object key)
{
if (key is null)
{
throw new ArgumentNullException(nameof(key));
}
if (_cacheConfiguration.Enabled)
{
ICacheEntry entry = _memoryCache.CreateEntry(new CacheEntryKey(_name, key));
if (_cacheConfiguration.Expiry.Type == CacheExpiryType.Absolute)
{
entry.SetAbsoluteExpiration(_cacheConfiguration.Expiry.TTL);
}
else if (_cacheConfiguration.Expiry.Type == CacheExpiryType.Sliding)
{
entry.SetSlidingExpiration(_cacheConfiguration.Expiry.TTL);
}
return(entry);
}
return(new CacheEntry(key));
}
/// <summary>
/// 设置 动态程序集滑动过期时间 10 秒
/// </summary>
/// <param name="entry"></param>
/// <param name="type"></param>
internal static void SetDynamicAssemblyPolicy(this ICacheEntry entry, Type?type)
{
if (type?.Assembly.IsDynamic ?? false)
{
entry.SetSlidingExpiration(TimeSpan.FromSeconds(10));
}
}
Task <Song> GenerateCacheEntry(ICacheEntry cacheEntry, uint songID, CancellationToken cancellation)
{
lock (cacheEntry) {
if (cacheEntry.Value is Task <Song> generating)
{
return(generating);
}
else
{
cacheEntry.SetSlidingExpiration(TimeSpan.FromHours(24));
Task <Song> result = this.FetchOrGenerateSong(songID, cancellation);
cacheEntry.SetAbsoluteExpiration(TimeSpan.FromDays(7));
cacheEntry.Value = result;
cacheEntry.Dispose();
result.ContinueWith(songTask => {
if (!songTask.IsCompletedSuccessfully)
{
return;
}
Song song = songTask.Result;
cacheEntry.SetSize(
song.Title?.Length + song.Lyrics?.Length +
song.GeneratorError?.Length ?? 64);
});
return(result);
}
}
}
private async Task <T> CacheFromApi <T>(Uri uri, ICacheEntry entry, CancellationToken cancellationToken)
{
var @object = await GetFromApi <T>(uri, cancellationToken)
.ConfigureAwait(false);
entry
.SetSlidingExpiration(TimeSpan.FromHours(1))
.SetValue(@object);
return(@object);
}
private async Task <OSM> CreateCache(int id, ICacheEntry entry, DateTime?dateTime)
{
entry.SetSlidingExpiration(TimeSpan.FromMinutes(15));
var text = await GetRelationFromOSMAsync(id, dateTime);
if (text == null)
{
return(null);
}
var osm = JsonConvert.DeserializeObject <OSM>(text.ToString());
return(osm);
}
private void SetExpiration(ICacheEntry entry, CancellationTokenSource tokenSourceBeforeComputingValue, double inMinutes, Action <ICacheEntry>?configureEntry = null)
{
lock (_tokenSourceSync)
{
configureEntry?.Invoke(entry);
if (tokenSourceBeforeComputingValue != ClearCacheTokenSource)
{
entry.SetAbsoluteExpiration(TimeSpan.FromTicks(1));
}
else
{
entry.SetSlidingExpiration(TimeSpan.FromMinutes(inMinutes))
.AddExpirationToken(new CancellationChangeToken(ClearCacheTokenSource.Token));
}
}
}
private async Task <ISchema> Create(ICacheEntry cacheEntry)
{
cacheEntry.SetSlidingExpiration(TimeSpan.FromHours(6));
try
{
// create channelsSchema by introspecting channels service
var channelsLink = Links.SignalROrHttp(
_configuration["Remotes:Channels"],
_configuration["Remotes:ChannelsHttp"],
_accessor);
var channelsSchema = RemoteSchemaTools.MakeRemoteExecutable(
await new SchemaBuilder()
.ImportIntrospectedSchema(channelsLink),
channelsLink);
// create messagesSchema by introspecting messages service
var messagesLink = Links.SignalR(
_configuration["Remotes:Messages"],
_accessor);
var messagesSchema = RemoteSchemaTools.MakeRemoteExecutable(
await new SchemaBuilder()
.ImportIntrospectedSchema(messagesLink),
messagesLink);
// combine schemas into one
var schema = new SchemaBuilder()
.Merge(channelsSchema, messagesSchema)
.Build();
// introspect and merge with schema
var introspection = Introspect.Schema(schema);
return(new SchemaBuilder()
.Merge(schema, introspection)
.Build());
}
catch (Exception e)
{
Console.WriteLine(e);
throw;
}
}
/// <summary>
/// Adds an object to distributed cache
/// </summary>
/// <param name="key">Cache Key</param>
/// <param name="value">Cache object</param>
/// <param name="options">Distributed cache options. <see cref="ExtendedDistributedCacheEntryOptions"/></param>
public void Set(string key, byte[] value, ExtendedDistributedCacheEntryOptions options)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
using (ICacheEntry cacheEntry = CreateEntry(key))
{
var memoryCacheEntryOptions = GetMemoryCacheEntryOptions(options, value.LongLength);
cacheEntry.SetOptions(memoryCacheEntryOptions);
if (memoryCacheEntryOptions.AbsoluteExpiration != null)
{
cacheEntry.SetAbsoluteExpiration(memoryCacheEntryOptions.AbsoluteExpiration.Value);
}
if (memoryCacheEntryOptions.AbsoluteExpirationRelativeToNow != null)
{
cacheEntry.SetAbsoluteExpiration(memoryCacheEntryOptions.AbsoluteExpirationRelativeToNow.Value);
}
if (memoryCacheEntryOptions.SlidingExpiration != null)
{
cacheEntry.SetSlidingExpiration(memoryCacheEntryOptions.SlidingExpiration.Value);
}
cacheEntry.SetPriority(memoryCacheEntryOptions.Priority);
cacheEntry.SetSize(value.LongLength);
cacheEntry.SetValue(value);
}
}
private async Task <ISchema> Create(ICacheEntry cacheEntry)
{
cacheEntry.SetSlidingExpiration(TimeSpan.FromHours(6));
try
{
var schemaBuilder = await SchemaLoader.Load();
var resolvers = new SchemaResolvers();
var schema = SchemaTools.MakeExecutableSchemaWithIntrospection(
schemaBuilder,
resolvers,
resolvers);
return(schema);
}
catch (Exception e)
{
Console.WriteLine(e);
throw;
}
}
/// <summary>
/// Sets the default cache entry options.
/// </summary>
public static ICacheEntry SetDefaultOptions(this ICacheEntry cacheEntry, IWebContext webContext)
{
cacheEntry.SetSlidingExpiration(CacheExpiration);
cacheEntry.AddExpirationToken(webContext);
return(cacheEntry);
}
private async Task <List <OSMLineDTO> > CreateCacheLinesNetwork(string network, DateTime?dateTime, ICacheEntry entry)
{
entry.SetSlidingExpiration(TimeSpan.FromMinutes(15));
return(await CreateNetworkRoutesListAsync(network, dateTime));
}
private async Task <List <OSMLineDTO> > CreateCacheLines(string reference, OSMRouteType?routeType, string network, ICacheEntry entry, DateTime?dateTime)
{
entry.SetSlidingExpiration(TimeSpan.FromMinutes(15));
return(await CreateRoutesListAsync(reference, routeType, network, dateTime));
}
void SetupCacheEntry(ICacheEntry cacheEntry)
{
cacheEntry.SetSize(_cacheSize);
cacheEntry.SetSlidingExpiration(_slidingExpirationTime);
cacheEntry.SetAbsoluteExpiration(_absoluteExpirationTime);
}
