/// <summary>
/// Register an instantiated INodeProvider with the node manager. The node manager will query the nodeprovider
/// for a list of its node descriptions, and add these nodes to a master list of nodes which can be used
/// by the scheduler. QUESTION: Do we allow duplicate Node Providers?
/// </summary>
/// <param name="providerToRegister"></param>
/// <returns></returns>
internal bool RegisterNodeProvider(INodeProvider nodeProviderToRegister)
{
ErrorUtilities.VerifyThrowArgumentNull(nodeProviderToRegister, "nodeProviderToRegister");
INodeDescription[] nodeDescriptions = nodeProviderToRegister.QueryNodeDescriptions();
int[] nodeIds = new int[nodeDescriptions.Length];
for (int i = 0; i < nodeIds.Length; i++)
{
nodeIds[i] = parentEngine.GetNextNodeId();
}
nodeProviderToRegister.AssignNodeIdentifiers(nodeIds);
// Go through all of the nodes as described by nodeDescriptions and add them to out list of nodes
for (int i = 0; i < nodeDescriptions.Length; i++)
{
ProvidersNodeInformation nodeToAddFromProvider =
new ProvidersNodeInformation(i, nodeIds[i], nodeDescriptions[i], nodeProviderToRegister);
nodeList.Add(nodeToAddFromProvider);
}
nodeProviders.Add(nodeProviderToRegister);
return(true);
}
/// <summary>
/// Provide an array of INodeDescriptionsof the node provided by the node provider for the node. The index of the description
/// is the node index to which the description matches
/// </summary>
/// <returns></returns>
internal INodeDescription[] GetNodeDescriptions()
{
// The number of node descriptions is the number of nodes from all of the node providers, plus one for the default "0" node
INodeDescription[] nodeDescription = new INodeDescription[nodeList.Count + 1];
nodeDescription[0] = null;
for (int nodeListIndex = 0; nodeListIndex < nodeList.Count; nodeListIndex++)
{
ProvidersNodeInformation nodeInfo = nodeList[nodeListIndex];
// +1 because the node description already has the 0 element set to null
nodeDescription[nodeListIndex + 1] = nodeInfo.Description;
}
return(nodeDescription);
}