internal CachingStoreWrapper(IFeatureStoreCore core, FeatureStoreCacheConfig caching)
{
this._core = core;
this._caching = caching;
if (caching.IsEnabled)
{
var itemCacheBuilder = Caches.KeyValue <CacheKey, IVersionedData>()
.WithLoader(GetInternalForCache)
.WithMaximumEntries(caching.MaximumEntries);
var allCacheBuilder = Caches.KeyValue <IVersionedDataKind, ImmutableDictionary <string, IVersionedData> >()
.WithLoader(GetAllForCache);
var initCacheBuilder = Caches.SingleValue <bool>()
.WithLoader(_core.InitializedInternal);
if (!caching.IsInfiniteTtl)
{
itemCacheBuilder.WithExpiration(caching.Ttl);
allCacheBuilder.WithExpiration(caching.Ttl);
initCacheBuilder.WithExpiration(caching.Ttl);
}
_itemCache = itemCacheBuilder.Build();
_allCache = allCacheBuilder.Build();
_initCache = initCacheBuilder.Build();
}
else
{
_itemCache = null;
_allCache = null;
_initCache = null;
}
}
/// <summary>
/// Sets the local caching properties.
/// </summary>
/// <param name="caching">a <see cref="FeatureStoreCacheConfig"/> object</param>
/// <returns>the builder</returns>
public CachingStoreWrapperBuilder WithCaching(FeatureStoreCacheConfig caching)
{
_caching = caching;
return(this);
}
/// <summary> /// Override this method to create a new instance of the appropriate feature store class. /// The properties of every instance should be the same except for the caching configuration. /// </summary> /// <param name="caching">the caching configuration</param> /// <returns>a store instance</returns> protected abstract IFeatureStore CreateStoreImpl(FeatureStoreCacheConfig caching);
override protected IFeatureStore CreateStoreImpl(FeatureStoreCacheConfig caching)
{
return(RedisFeatureStoreBuilder.Default().WithCaching(caching).
CreateFeatureStore());
}
/// <summary>
/// Specifies whether local caching should be enabled and if so, sets the cache properties. Local
/// caching is enabled by default; see <see cref="FeatureStoreCacheConfig.Enabled"/>. To disable it, pass
/// <see cref="FeatureStoreCacheConfig.Disabled"/> to this method.
/// </summary>
/// <param name="caching">a <see cref="FeatureStoreCacheConfig"/> object specifying caching parameters</param>
/// <returns>the same builder instance</returns>
public RedisFeatureStoreBuilder WithCaching(FeatureStoreCacheConfig caching)
{
Caching = caching;
return(this);
}
