public FlowDiagram BuildDiagram(Type requestType, Type responseType, IFlowDefinition flowDefinition, bool isOverride = false)
{
var requestInfo = new FlowRequestInfo
{
RequestType = requestType,
Description = GetDescriptionAttributeValue(requestType),
Properties = GetFlowPropertyInfos(requestType),
};
var responseInfo = new FlowResponseInfo
{
ResponseType = responseType,
Description = GetDescriptionAttributeValue(responseType),
Properties = GetFlowPropertyInfos(responseType),
};
var flowDiagram = new FlowDiagram(flowDefinition.Criteria, requestInfo, responseInfo, isOverride);
var startNode = flowDiagram.AddNode(new FlowDiagramNode
{
NodeType = FlowDiagramNodeType.Start,
Name = "Start"
});
var endCount = AddFlowDiagramDefaultLink(startNode, -1, flowDefinition, flowDiagram, 0);
var previousNode = startNode;
for (var stepIndex = 0; stepIndex < flowDefinition.Steps.Count; stepIndex++)
{
previousNode = AddFlowDiagramNode(stepIndex, flowDefinition, previousNode, flowDiagram, ref endCount);
}
return(flowDiagram);
}
private FlowDiagramNode AddFlowDiagramDecisionNode(int stepIndex, IFlowDefinition flowDefinition, FlowDiagram flowDiagram,
FlowStep flowStep, DecisionFlowStepBase decisionFlowStep, ref int endCount)
{
var decisionRequest = GetFlowStepRequest(flowStep.Definition);
var decisionNode = flowDiagram.AddNode(new FlowDiagramNode
{
NodeType = FlowDiagramNodeType.Decision,
Name = flowStep.Name,
Text = GetFlowDiagramNodeText(flowStep, decisionRequest),
OverrideKey = flowStep.OverrideKey?.Value,
OverrideDescription = flowStep.OverrideKey?.Description,
});
SetFlowDiagramNodeInputSummaries(flowStep, decisionRequest, decisionNode);
foreach (var branch in decisionFlowStep.Branches)
{
if (branch.IsUnhandled)
{
continue;
}
var linkCriteria = branch.Targets?.ToList().ConvertAll(c => c?.ToString());
if (branch.IsEnd)
{
var endNode = AddFlowDiagramEndNode(flowDiagram, ref endCount);
decisionNode.Links.Add(new FlowDiagramLink
{
TargetNodeName = endNode.Name,
Criteria = linkCriteria
});
}
else
{
if (string.IsNullOrEmpty(branch.NextStepName))
{
endCount = AddFlowDiagramDefaultLink(decisionNode, stepIndex, flowDefinition, flowDiagram, endCount);
}
else
{
decisionNode.Links.Add(new FlowDiagramLink
{
TargetNodeName = branch.NextStepName,
Criteria = linkCriteria
});
}
}
}
return(decisionNode);
}
private static FlowDiagramNode AddFlowDiagramEndNode(FlowDiagram flowDiagram, ref int endCount)
{
endCount += 1;
var endNode = flowDiagram.AddNode(new FlowDiagramNode
{
NodeType = FlowDiagramNodeType.End,
Name = "End_" + endCount
});
return(endNode);
}
private FlowDiagramNode AddFlowDiagramLabelNode(int stepIndex, IFlowDefinition flowDefinition, FlowDiagram flowDiagram,
FlowStep flowStep, ref int endCount)
{
var labelNode = flowDiagram.AddNode(new FlowDiagramNode
{
NodeType = FlowDiagramNodeType.Label,
Name = flowStep.Name,
Text = flowStep.Text ?? flowStep.Name
});
endCount = AddFlowDiagramDefaultLink(labelNode, stepIndex, flowDefinition, flowDiagram, endCount);
return(labelNode);
}
private FlowDiagramNode AddFlowDiagramActivityNode(int stepIndex, IFlowDefinition flowDefinition, FlowDiagram flowDiagram,
FlowStep flowStep, ref int endCount)
{
var activityRequest = GetFlowStepRequest(flowStep.Definition);
var activityNode = flowDiagram.AddNode(new FlowDiagramNode
{
NodeType = FlowDiagramNodeType.Activity,
Name = flowStep.Name,
Text = GetFlowDiagramNodeText(flowStep, activityRequest),
OverrideKey = flowStep.OverrideKey?.Value,
OverrideDescription = flowStep.OverrideKey?.Description,
});
SetFlowDiagramNodeInputSummaries(flowStep, activityRequest, activityNode);
activityNode.OutputBindings = GetBoundOutputSummary(flowStep, activityRequest);
endCount = AddFlowDiagramDefaultLink(activityNode, stepIndex, flowDefinition, flowDiagram, endCount);
return(activityNode);
}
