/// <summary>
/// Gets the chunk the specified id belongs in.
/// </summary>
/// <param name="id">The id to search for.</param>
/// <returns>The chunk the specified id belongs in.</returns>
private DatabaseChunk GetChunk(ObjectId id)
{
var value = _chunks.SingleOrDefault(e => ChunkMarker.IsBetween(e.Start, e.End, id.ToString()));
if (value == null)
{
_lock.ExitReadLock();
throw new ChunkMovedException();
}
return(value);
}
/// <summary>
/// Processes an update operation.
/// </summary>
/// <param name="dataOperation">The document that represents the operation.</param>
/// <param name="message">The original message.</param>
private void ProcessUpdateOperation(Document dataOperation, Message message)
{
UpdateOperation updateOperation = new UpdateOperation(dataOperation["update"].ValueAsDocument);
if (!updateOperation.Valid)
{
SendMessage(new Message(message, updateOperation.ErrorMessage, false));
return;
}
_chunkListLock.EnterReadLock();
var chunk = _chunkList.SingleOrDefault(e => ChunkMarker.IsBetween(e.Start, e.End, updateOperation.DocumentId.ToString()));
_chunkListLock.ExitReadLock();
NodeDefinition node = chunk == null ? null : chunk.Node;
if (node == null)
{
SendMessage(new Message(message, new DataOperationResult(ErrorCodes.FailedMessage, "No storage node up for the specified id range."), false));
return;
}
Message operationMessage = new Message(node, message.Data, true);
operationMessage.SetResponseCallback(delegate(Message originalOperationMessage)
{
if (originalOperationMessage.Success)
{
DataOperationResult result = (DataOperationResult)originalOperationMessage.Response.Data;
Document resultDocument = new Document(result.Result);
if (!resultDocument["success"].ValueAsBoolean && (ErrorCodes)Enum.Parse(typeof(ErrorCodes), resultDocument["errorcode"].ValueAsString) == ErrorCodes.ChunkMoved)
{
ProcessUpdateOperation(dataOperation, message);
return;
}
SendMessage(new Message(message, result, false));
return;
}
SendMessage(new Message(message, new DataOperationResult(ErrorCodes.FailedMessage, "Failed to send message to storage node."), false));
});
SendMessage(operationMessage);
}
