internal EnumerationDataChunk GetNextChunk(EnumerationPointer pointer)
{
EnumerationDataChunk nextChunk = null;
IEnumerationProvider provider = GetProvider(pointer);
if (pointer.isDisposable && provider != null)
{
provider.Dispose();
if (_index.ContainsKey(pointer))
{
_index.Remove(pointer);
}
nextChunk = new EnumerationDataChunk();
nextChunk.Pointer = pointer;
}
else if (provider != null)
{
nextChunk = provider.GetNextChunk(pointer);
//Dispose the provider if this is the last chunk for it
if (nextChunk.IsLastChunk)
{
provider.Dispose();
if (_index.ContainsKey(pointer))
{
_index.Remove(pointer);
}
}
}
return(nextChunk);
}
/// <summary>
/// Recupera o próximo pedaço.
/// </summary>
/// <param name="pointer">Ponteiro para o pedaço.</param>
/// <returns></returns>
internal EnumerationDataChunk GetNextChunk(EnumerationPointer pointer)
{
EnumerationDataChunk nextChunk = null;
IEnumerationProvider provider = this.GetProvider(pointer);
if (pointer.IsDisposable && (provider != null))
{
provider.Dispose();
if (_index.ContainsKey(pointer))
{
_index.Remove(pointer);
}
nextChunk = new EnumerationDataChunk();
nextChunk.Pointer = pointer;
return(nextChunk);
}
if (provider != null)
{
nextChunk = provider.GetNextChunk(pointer);
if (nextChunk.IsLastChunk)
{
provider.Dispose();
if (_index.ContainsKey(pointer))
{
_index.Remove(pointer);
}
}
}
return(nextChunk);
}
/// <summary>
/// Recupera o provedor de enumeração.
/// </summary>
/// <param name="pointer"></param>
/// <returns></returns>
private IEnumerationProvider GetProvider(EnumerationPointer pointer)
{
if (_index == null)
{
_index = new Dictionary <EnumerationPointer, IEnumerationProvider>();
}
IEnumerationProvider provider = null;
if (_index.ContainsKey(pointer))
{
return(_index[pointer]);
}
return(provider);
}
private IEnumerationProvider GetProvider(EnumerationPointer pointer)
{
if (_index == null)
{
_index = new Dictionary <EnumerationPointer, IEnumerationProvider>();
}
IEnumerationProvider provider = null;
if (_index.ContainsKey(pointer))
{
provider = _index[pointer];
}
else if (pointer.ChunkId == -1 && !pointer.IsSocketServerDispose && !pointer.isDisposable)
{
provider = new SnapshotEnumerationProvider();
provider.Initialize(pointer, _cache);
_index.Add(pointer, provider);
}
return(provider);
}
public Program(IEnumerationProvider<Action> enumerationProvider)
{
this.enumerationProvider = enumerationProvider;
}
