/// <summary>
/// Builds workflow and validates from workflow template
/// </summary>
/// <param name="workflowDefinition"></param>
/// <param name="sagaStepBehaviorFactory"></param>
public Workflow(WorkflowDefinition workflowDefinition, ISagaStepBehaviorFactory sagaStepBehaviorFactory, IJsonSchemaDefinitionFactory jsonSchemaDefinitionFactory)
{
WorkflowDefinition = workflowDefinition;
Name = workflowDefinition.Name;
Version = workflowDefinition.Version;
_sagaStepBehaviorFactory = sagaStepBehaviorFactory;
//Add all edges starting from "START" with their nodes
foreach (WorkflowDefinition.Edge edge in workflowDefinition.Edges.Where(e => e.FromNodeKey.Equals(DoubleLinkedDirectedGraph <NodeData, EdgeData> .START_NODE_KEY)))
{
WorkflowDefinition.Node toNode = workflowDefinition.Nodes.Where(n => n.NodeKey.Equals(edge.ToNodeKey)).FirstOrDefault();
CheckIfSagaStepBehaviorExists(toNode);
JsonSchema dataJsonSchema = jsonSchemaDefinitionFactory.GetJsonSchemaDefinition(toNode.DataJsonSchemaModuleKey, toNode.DataJsonSchemaKey, toNode.DataJsonSchemaVersion).JsonSchema;
_internalWorkflow.InsertFromStart(toNode.NodeKey, new NodeData(toNode.Description, dataJsonSchema, toNode.BehaviorModuleKey, toNode.BehaviorKey, toNode.BehaviorVersion, toNode.BehaviorConfiguration));
}
//Add all remaining edges with their nodes
List <WorkflowDefinition.Edge> nonInsertedEdges = workflowDefinition.Edges.Where(e => !e.FromNodeKey.Equals(DoubleLinkedDirectedGraph <NodeData, EdgeData> .START_NODE_KEY)).ToList();
while (nonInsertedEdges.Count > 0)
{
//Select first that have an included nodekey to avoid problems
WorkflowDefinition.Edge edge = nonInsertedEdges.Where(f => _internalWorkflow.AlreadyAddedNodeKeys.Contains(f.FromNodeKey)).First();
WorkflowDefinition.Node toNode = workflowDefinition.Nodes.Where(n => n.NodeKey.Equals(edge.ToNodeKey)).FirstOrDefault();
CheckIfSagaStepBehaviorExists(toNode);
JsonSchema dataJsonSchema = jsonSchemaDefinitionFactory.GetJsonSchemaDefinition(toNode.DataJsonSchemaModuleKey, toNode.DataJsonSchemaKey, toNode.DataJsonSchemaVersion).JsonSchema;
_internalWorkflow.Insert(edge.FromNodeKey, toNode.NodeKey, edge.Description, new NodeData(toNode.Description, dataJsonSchema, toNode.BehaviorModuleKey, toNode.BehaviorKey, toNode.BehaviorVersion, toNode.BehaviorConfiguration));
nonInsertedEdges.Remove(edge);
}
_internalWorkflow.FinishGraph();
}
private void CheckIfSagaStepBehaviorExists(WorkflowDefinition.Node toNode)
{
ISagaStepBehavior sagaStepBehavior = _sagaStepBehaviorFactory.GetSagaStepBehavior(toNode.BehaviorModuleKey, toNode.BehaviorKey, toNode.BehaviorVersion, toNode.BehaviorConfiguration, Name);
if (sagaStepBehavior == null)
{
throw new WorkflowStartupException($"Workflow {Name}.{Version} cannot find SagaStepBehavior {toNode.BehaviorKey}.{toNode.BehaviorVersion}");
}
}