public ChecksumObject Add(ChecksumObject checksumObject)
{
// optimization to not create map. in whole solution level, there is
// many case where green node is unique per checksum object such as metadata reference
// or p2p reference.
Interlocked.CompareExchange(ref _singleElementChecksumObject, checksumObject, null);
if (_singleElementChecksumObject.Kind == checksumObject.Kind)
{
// we already have one
Contract.Requires(_singleElementChecksumObject.Checksum.Equals(checksumObject.Checksum));
return(_singleElementChecksumObject);
}
// more expansive case. create map to save checksum object per kind
EnsureLazyMap();
_lazyChecksumToChecksumObjectMap.TryAdd(checksumObject.Checksum, checksumObject);
if (_lazyKindToChecksumObjectMap.TryAdd(checksumObject.Kind, checksumObject))
{
// just added new one
return(checksumObject);
}
// there is existing one.
return(_lazyKindToChecksumObjectMap[checksumObject.Kind]);
}
public ChecksumObject Add(ChecksumObject checksumObject)
{
Interlocked.CompareExchange(ref _checksumObject, checksumObject, null);
// optimization to not create map. in whole solution level, there is
// many case where green node is unique per checksum object such as metadata reference
// or p2p reference.
if (_checksumObject.Kind == checksumObject.Kind)
{
// we already have one
Contract.Requires(_checksumObject.Checksum.Equals(checksumObject.Checksum));
return _checksumObject;
}
// more expansive case. create map to save checksum object per kind
EnsureLazyMap();
_lazyChecksumToChecksumObjectMap.TryAdd(checksumObject.Checksum, checksumObject);
if (_lazyKindToChecksumObjectMap.TryAdd(checksumObject.Kind, checksumObject))
{
// just added new one
return checksumObject;
}
// there is existing one.
return _lazyKindToChecksumObjectMap[checksumObject.Kind];
}
public bool TryGetValue(string kind, out ChecksumObject checksumObject)
{
if (_checksumObject?.Kind == kind)
{
checksumObject = _checksumObject;
return true;
}
if (_lazyKindToChecksumObjectMap != null)
{
return _lazyKindToChecksumObjectMap.TryGetValue(kind, out checksumObject);
}
checksumObject = null;
return false;
}
private ChecksumObject SaveAndReturn(object key, ChecksumObject checksumObject, ChecksumObjectCache entry = null)
{
// create new entry if it is not already given
ChecksumObjectCache self;
if (_cache.TryGetValue(key, out self))
{
// we already have entry
return(self.Add(checksumObject));
}
// either create new entry or re-use given one. this will let us share
// whole sub checksum tree that is associated with given green node (key)
entry = _cache.GetOrAdd(key, _ => entry ?? new ChecksumObjectCache());
return(entry.Add(checksumObject));
}
public bool TryGetValue(Checksum checksum, out ChecksumObject checksumObject)
{
if (SingleElementChecksumObject?.Checksum == checksum)
{
checksumObject = SingleElementChecksumObject;
return(true);
}
if (LazyChecksumToChecksumObjectMap != null)
{
return(LazyChecksumToChecksumObjectMap.TryGetValue(checksum, out checksumObject));
}
checksumObject = null;
return(false);
}
public bool TryGetValue(string kind, out ChecksumObject checksumObject)
{
if (SingleElementChecksumObject?.Kind == kind)
{
checksumObject = SingleElementChecksumObject;
return(true);
}
if (LazyKindToChecksumObjectMap != null)
{
return(LazyKindToChecksumObjectMap.TryGetValue(kind, out checksumObject));
}
checksumObject = null;
return(false);
}
public bool TryGetValue(Checksum checksum, out ChecksumObject checksumObject)
{
if (_checksumObject?.Checksum == checksum)
{
checksumObject = _checksumObject;
return true;
}
if (_lazyChecksumToChecksumObjectMap != null)
{
return _lazyChecksumToChecksumObjectMap.TryGetValue(checksum, out checksumObject);
}
checksumObject = null;
return false;
}
public ChecksumObjectCache(ChecksumObject checksumObject)
{
_checksumObject = checksumObject;
}
public bool TryGetValue(Checksum checksum, out ChecksumObject checksumObject)
{
if (SingleElementChecksumObject?.Checksum == checksum)
{
checksumObject = SingleElementChecksumObject;
return true;
}
if (LazyChecksumToChecksumObjectMap != null)
{
return LazyChecksumToChecksumObjectMap.TryGetValue(checksum, out checksumObject);
}
checksumObject = null;
return false;
}
public ChecksumObjectCache(ChecksumObject checksumObject)
{
_checksumObject = checksumObject;
}
private ChecksumObject SaveAndReturn(object key, ChecksumObject checksumObject, ChecksumObjectCache entry = null)
{
// create new entry if it is not already given
entry = _cache.GetOrAdd(key, _ => entry ?? new ChecksumObjectCache(checksumObject));
return(entry.Add(checksumObject));
}