public Type TryResolveComponentName(string componentName)
{
Type result;
if (!mResolvedTypes.TryGetValue(componentName, out result))
{
result = ComponentFinder.FindByName(componentName);
mResolvedTypes = mResolvedTypes.Add(componentName, result);
}
return(result);
}
private void InstantiateProcesses()
{
foreach (var node in graph.Nodes)
{
var component = Activator.CreateInstance(ComponentFinder.FindByName(node.Type)) as Component;
if (component == null)
{
throw new ArgumentException($"Could not create process for component '{node.Type}'");
}
var process = new Process(node, component);
nodeToProcess = nodeToProcess.Add(node, process);
if (process.FillInitialData())
{
runnableProcesses = runnableProcesses.Enqueue(process);
}
}
}
// https://noflojs.org/documentation/graphs/
public static Graph Read(string fbpFullFileName)
{
string fbpContent = System.IO.File.ReadAllText(fbpFullFileName);
var result = Parse(fbpContent);
var nodes = ImmutableList <Node> .Empty;
for (var i = 0; i < result.Components.Count; i++)
{
var component = result.Components[i];
var componentType = ComponentFinder.FindByName(component.Type);
if (componentType != null)
{
var inputAttributes = ComponentFinder.GetInputAttributes(componentType);
var outputAttributes = ComponentFinder.GetOutputAttributes(componentType);
//var inputAttributeNames = inputAttributes.Select((x) => x.Name).ToImmutableArray();
var inputAttributeNames = inputAttributes.ToDictionary((x) => x.Name);
var outputAttributeNames = outputAttributes.ToDictionary((x) => x.Name);
// 1. Add missing inputs and outputs: the fbp format serializes only connected ports
foreach (var ia in inputAttributes)
{
if (!component.InputPorts.Contains(ia.Name))
{
component.InputPorts = component.InputPorts.Add(ia.Name);
}
}
foreach (var ia in outputAttributes)
{
if (!component.OutputPorts.Contains(ia.Name))
{
component.OutputPorts = component.OutputPorts.Add(ia.Name);
}
}
// 2. Sort the ports
component.InputPorts = component.InputPorts.Sort((string a, string b) => inputAttributeNames[a].Index.CompareTo(inputAttributeNames[b].Index));
component.OutputPorts = component.OutputPorts.Sort((string a, string b) => outputAttributeNames[a].Index.CompareTo(outputAttributeNames[b].Index));
// Other possibile validations that will be done as part of GraphTypeChecker:
// 1. Ports that are not present in the type
// 2. Component type not found
// 3. Port types not matching
// 4. Connections that are invalid due to mismatched types
}
var inputs = ImmutableArray <NodeInput> .Empty.AddRange(from x in component.InputPorts
select new NodeInput(x, component.InputPortInitialDatas.GetValueOrDefault(x, null)));
var outputs = ImmutableArray <NodeOutput> .Empty.AddRange(from x in component.OutputPorts
select new NodeOutput(x, false));
var pos = new Point2(Double.Parse(component.Metadata.GetValueOrDefault("x", "0")),
Double.Parse(component.Metadata.GetValueOrDefault("y", "0")));
var node = new Node(component.Name, component.Type,
pos, inputs, outputs);
nodes = nodes.Add(node);
}
var connections = ImmutableList <Connection> .Empty;
for (var i = 0; i < result.Components.Count; i++)
{
var component = result.Components[i];
var fromNode = nodes.Where((x) => x.Name == component.Name).First();
foreach (var conn in component.OutputPortConnections)
{
var fromNodeOutput = fromNode.Outputs.Where((x) => x.Name == conn.Item1).First();
var toNode = nodes.Where((x) => x.Name == conn.Item2.Name).First();
var toNodeInput = toNode.Inputs.Where((x) => x.Name == conn.Item3).First();
connections = connections.Add(new Connection(fromNode, fromNodeOutput, toNode, toNodeInput));
}
}
return(new Graph(nodes, connections));
}
