async Task <IInstanceNode> BuildNode(ScriptLanguage?language, NodeData node, Guid?nodeid = null)
{
nodeid ??= Guid.NewGuid();
IInstanceNode instance;
switch (node.Type)
{
case NodeType.Start:
instance = new StartNode(nodeid.Value, node.Name, node.Parameters.Deserialize <StartParameters>(), compiler);
break;
case NodeType.Expression:
ExecuteExpressionParameters parameters = node.Parameters.Deserialize <ExecuteExpressionParameters>();
instance = new ExpressionNode(nodeid.Value, node.Name, await compiler.CompileCodeAsync(parameters.Code, parameters.Language));
break;
case NodeType.Script:
instance = new ScriptNode(nodeid.Value, node.Name, node.Parameters.Deserialize <CallWorkableParameters>(), compiler, language);
break;
case NodeType.Workflow:
instance = new WorkflowInstanceNode(nodeid.Value, node.Name, node.Parameters.Deserialize <CallWorkableParameters>(), compiler, language);
break;
case NodeType.BinaryOperation:
BinaryOpParameters binparameters = node.Parameters.Deserialize <BinaryOpParameters>();
instance = new BinaryNode(nodeid.Value, node.Name, binparameters, compiler);
break;
case NodeType.Value:
ValueParameters valueparameters = node.Parameters.Deserialize <ValueParameters>();
instance = new ValueNode(nodeid.Value, node.Name, valueparameters.Value, compiler);
break;
case NodeType.Suspend:
instance = new SuspendNode(nodeid.Value, node.Name, node.Parameters.Deserialize <SuspendParameters>());
break;
case NodeType.Call:
instance = new CallNode(nodeid.Value, node.Name, node.Parameters.Deserialize <CallParameters>(), compiler);
break;
case NodeType.Iterator:
instance = new IteratorNode(nodeid.Value, node.Name, node.Parameters.Deserialize <IteratorParameters>(), compiler);
break;
case NodeType.Log:
instance = new LogNode(nodeid.Value, node.Name, compiler, node.Parameters.Deserialize <LogParameters>());
break;
default:
instance = new InstanceNode(nodeid.Value, node.Name);
break;
}
if (!string.IsNullOrEmpty(node.Variable))
{
instance = new AssignStateNode(instance, node.Variable, node.VariableOperation, compiler);
}
return(instance);
}
/// <summary>
/// creates a new <see cref="BinaryNode"/>
/// </summary>
/// <param name="nodeid">id of workflow node</param>
/// <param name="name">name of node</param>
/// <param name="parameters">parameters for operation</param>
/// <param name="compiler">access to code compiler</param>
public BinaryNode(Guid nodeid, string name, BinaryOpParameters parameters, IScriptCompiler compiler)
: base(nodeid, name, compiler)
{
Parameters = parameters;
}
