public CacheItem(ComparableBytesAbstract DesiredLookupKey, IHashable CacheValue, TimeSpan ExpireIn)
{
Key = DesiredLookupKey.Bytes;
Value = CacheValue;
ExpireDate = DateTime.Now.Add(ExpireIn);
AddedDate = DateTime.Now;
}
public override bool AddOrUpdate <T>(ComparableBytesAbstract Key, T Value, TimeSpan ExpireSpan)
{
CountWrite();
CacheItem newItem = new CacheItem(Key, Value, ExpireSpan);
return(AddOrUpdate(newItem));
}
public override CacheItem Get(ComparableBytesAbstract Key)
{
CountRead();
var item = new CacheItem();
Cache.TryGetValue(Key, out item);
return(item);
}
/// <summary>
/// Gets an item in this cache
/// </summary>
/// <param name="Key">Item Key</param>
/// <param name="Recurse">If true, also searches all OverflowCaches</param>
/// <returns>The object or null</returns>
public CacheItem Get(ComparableBytesAbstract Key, bool Recurse)
{
var g = Get(Key);
if (Recurse && g == null && OverflowCache != null)
{
return(OverflowCache.Get(Key, Recurse));
}
return(g);
}
/// <summary>
/// Gets an item in this cache
/// </summary>
/// <param name="Key">Item Key</param>
/// <param name="Recurse">If true, also searches all OverflowCaches</param>
/// <returns>The object or null</returns>
public T Get <T>(ComparableBytesAbstract Key, bool Recurse) where T : IHashable
{
var g = Get <T>(Key);
if (g == null && OverflowCache != null)
{
return(OverflowCache.Get <T>(Key, Recurse));
}
return(g);
}
/// <summary>
/// Removes an item from this cache
/// </summary>
/// <param name="Key">Item Key</param>
/// <param name="Recurse">If true, also searches all OverflowCaches</param>
/// <returns>True if the item was removed</returns>
public bool Remove(ComparableBytesAbstract Key, bool Recurse)
{
var g = Remove(Key);
if (Recurse && g == false && OverflowCache != null)
{
return(OverflowCache.Remove(Key, Recurse));
}
return(g);
}
/// <summary>
/// Checks if a key exists in this cache
/// </summary>
/// <param name="Key">Item Key</param>
/// <param name="Recurse">If true, also searches all OverflowCaches</param>
/// <returns>True if the object exists</returns>
public bool Exists(ComparableBytesAbstract Key, bool Recurse)
{
bool e = Exists(Key);
if (Recurse && e == false && OverflowCache != null)
{
return(OverflowCache.Exists(Key, Recurse));
}
return(e);
}
public override bool Remove(ComparableBytesAbstract Key)
{
CountWrite();
var deletes = LCol.Delete(x => x.Key == Key.Bytes);
if (deletes > 0)
{
//CurrentCollectionCount -= deletes;
return(true);
}
else
{
return(false);
}
}
public static int Compare(ComparableBytesAbstract Left, ComparableBytesAbstract Right)
{
if (ReferenceEquals(Right, null) && ReferenceEquals(Left, null))
{
return(0);
}
else if (ReferenceEquals(Right, null))
{
return(-1);
}
else if (ReferenceEquals(Left, null))
{
return(1);
}
return(Compare(Left.Bytes, Right.Bytes));
}
public override bool Remove(ComparableBytesAbstract Key)
{
CountWrite();
var c = new CacheItem();
Cache.TryRemove(Key, out c);
if (c?.Value != null)
{
_currentCollectionCount -= 1;
CurrentCollectionSize -= c.Value.ComputedHash.SourceByteLength;
return(true);
}
else
{
return(false);
}
}
public T Get <T>(ComparableBytesAbstract Key) where T : Hashable
{
if (StoreCache.Exists(Key))
{
return(StoreCache.Get <T>(Key));
}
else
{
//try and get from the closest peer
if (KnownPeers.NodeCount > 0)
{
var closestPeer = GetPeer(Key);
if (closestPeer != null)
{
return(closestPeer.TryGet <T>(Key));
}
}
}
return(null);
}
public override T Get <T>(ComparableBytesAbstract Key)
{
var item = Get(Key);
return((T)item.Value);
}
public static int Compare(ComparableBytesAbstract Left, byte[] Right)
{
return(Compare(Left.Bytes, Right));
}
public Peer GetPeer(ComparableBytesAbstract Key)
{
throw new NotImplementedException();
}
public abstract bool Exists(ComparableBytesAbstract Key);
public static int Compare(byte[] Left, ComparableBytesAbstract Right)
{
return(Compare(Left, Right.Bytes));
}
public T TryGet <T>(ComparableBytesAbstract Key) where T : Hashable
{
var transport = GetTransport();
return(transport.TryGet <T>(Key));
}
public int CompareTo(ComparableBytesAbstract HashObject)
{
return(Compare(this.Bytes, HashObject.Bytes));
}
public override bool Exists(ComparableBytesAbstract Key)
{
CountRead();
return(Cache.ContainsKey(Key));
}
public override CacheItem Get(ComparableBytesAbstract Key)
{
CountRead();
return(LCol.FindOne(x => x.Key == Key.Bytes));
}
public abstract T Get <T>(ComparableBytesAbstract Key) where T : IHashable;
public abstract bool AddOrUpdate <T>(ComparableBytesAbstract Key, T Value, TimeSpan ExpireSpan) where T : IHashable;
public abstract CacheItem Get(ComparableBytesAbstract Key);
public override bool Exists(ComparableBytesAbstract Key)
{
CountRead();
return(LCol.Exists(x => x.Key == Key.Bytes));
}
public abstract bool Remove(ComparableBytesAbstract Key);
