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;
}
public EnumerationDataChunk GetNextChunk(Alachisoft.NCache.Common.DataStructures.EnumerationPointer pointer)
{
int count = 0;
EnumerationDataChunk chunk = new EnumerationDataChunk();
chunk.Data = new List<string>();
int currentIndex = pointer.ChunkId;
while (currentIndex < _snapshot.Length - 1 && count < _chunkSize)
{
currentIndex++;
chunk.Data.Add(_snapshot.GetValue(currentIndex).ToString());
count++;
}
if (currentIndex == _snapshot.Length - 1)
_pointer.ChunkId = -1;
else
_pointer.ChunkId = currentIndex; //Set the chunkId to strating index of the next chunk to fetch.
chunk.Pointer = _pointer;
return chunk;
}
public override EnumerationDataChunk GetNextChunk(EnumerationPointer pointer, OperationContext operationContext)
{
/// Wait until the object enters the running status
_statusLatch.WaitForAny(NodeStatus.Running);
if (_internalCache == null)
throw new InvalidOperationException();
EnumerationDataChunk nextChunk = null;
long clientLastViewId = GetClientLastViewId(operationContext);
string intenededRecepient = GetIntendedRecipient(operationContext);
Array servers = Array.CreateInstance(typeof (Address), Cluster.Servers.Count);
Cluster.Servers.CopyTo(servers);
Address targetNode = null;
if (clientLastViewId == -1 && !string.IsNullOrEmpty(intenededRecepient))
{
for (int i = 0; i < servers.Length; i++)
{
Address server = servers.GetValue(i) as Address;
if (server.IpAddress.ToString() == intenededRecepient)
{
targetNode = server;
break;
}
}
if (targetNode != null)
{
if (targetNode.Equals(Cluster.LocalAddress))
nextChunk = InternalCache.GetNextChunk(pointer, operationContext);
else
nextChunk = Clustered_GetNextChunk(targetNode, pointer, operationContext);
}
else
{
nextChunk = new EnumerationDataChunk();
nextChunk.Pointer = pointer;
}
}
else
{
nextChunk = InternalCache.GetNextChunk(pointer, operationContext);
}
return nextChunk;
}
internal void MergeResponse(Common.Net.Address address, CommandResponse response)
{
if (_finalResponse == null && response.Type != Alachisoft.NCache.Common.Protobuf.Response.Type.GET_NEXT_CHUNK)
{
_finalResponse = response;
if (response.IsBrokerReset)
{
MergeFailedResponse(response);
}
}
else
{
if (response.IsBrokerReset)
{
MergeFailedResponse(response);
}
else
{
IDictionaryEnumerator ide = null;
switch (response.Type)
{
case Alachisoft.NCache.Common.Protobuf.Response.Type.ADD_BULK:
case Alachisoft.NCache.Common.Protobuf.Response.Type.INSERT_BULK:
case Alachisoft.NCache.Common.Protobuf.Response.Type.GET_BULK:
case Alachisoft.NCache.Common.Protobuf.Response.Type.REMOVE_BULK:
ide = response.KeyValueDic.GetEnumerator();
while (ide.MoveNext())
{
_finalResponse.KeyValueDic[ide.Key] = ide.Value;
}
break;
case Alachisoft.NCache.Common.Protobuf.Response.Type.SEARCH:
if ((_finalResponse.ExceptionType == Alachisoft.NCache.Common.Enum.ExceptionType.TYPE_INDEX_NOT_FOUND)
|| (_finalResponse.ExceptionType == Alachisoft.NCache.Common.Enum.ExceptionType.ATTRIBUTE_INDEX_NOT_FOUND))
{
_finalResponse = response;
break;
}
switch (response.ResultSet.AggregateFunctionType)
{
case Alachisoft.NCache.Common.Enum.AggregateFunctionType.NOTAPPLICABLE:
_finalResponse.KeyList.AddRange(response.KeyList);
break;
default:
if (!_finalResponse.ResultSet.IsInitialized)
{
SetAggregateFunctionResult();
_finalResponse.ResultSet.Initialize(_finalResponse.ResultSet);
}
_finalResponse.ResultSet.Compile(response.ResultSet);
break;
}
break;
case Alachisoft.NCache.Common.Protobuf.Response.Type.SEARCH_ENTRIES:
if ((_finalResponse.ExceptionType == Alachisoft.NCache.Common.Enum.ExceptionType.TYPE_INDEX_NOT_FOUND)
|| (_finalResponse.ExceptionType == Alachisoft.NCache.Common.Enum.ExceptionType.ATTRIBUTE_INDEX_NOT_FOUND))
{
_finalResponse = response;
break;
}
switch (response.ResultSet.AggregateFunctionType)
{
case Alachisoft.NCache.Common.Enum.AggregateFunctionType.NOTAPPLICABLE:
ide = response.KeyValueDic.GetEnumerator();
while (ide.MoveNext())
{
_finalResponse.KeyValueDic[ide.Key] = ide.Value;
}
break;
default:
if (!_finalResponse.ResultSet.IsInitialized)
{
SetAggregateFunctionResult();
_finalResponse.ResultSet.Initialize(_finalResponse.ResultSet);
}
_finalResponse.ResultSet.Compile(response.ResultSet);
break;
}
break;
case Alachisoft.NCache.Common.Protobuf.Response.Type.GET_NEXT_CHUNK:
if (_finalResponse == null)
_finalResponse = response;
EnumerationDataChunk chunk = null;
if (_chunks.ContainsKey(address))
{
chunk = _chunks[address];
}
else
{
chunk = new EnumerationDataChunk();
chunk.Data = new List<string>();
_chunks.Add(address, chunk);
}
for (int i = 0; i < response.NextChunk.Count; i++)
{
chunk.Data.AddRange(response.NextChunk[i].Data);
chunk.Pointer = response.NextChunk[i].Pointer;
if (chunk.Pointer.NodeIpAddress==null)
chunk.Pointer.NodeIpAddress = address;
}
_finalResponse.NextChunk = new List<EnumerationDataChunk>(_chunks.Values);
break;
case Alachisoft.NCache.Common.Protobuf.Response.Type.EXCEPTION:
if (response.ExceptionType == Common.Enum.ExceptionType.STATE_TRANSFER_EXCEPTION)
{
_finalResponse = response;
}
break;
default:
break;
}
}
}
}