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Faasflow parralel
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| func Define(flow *faasflow.Workflow, context *faasflow.Context) (err error) { | |
| dag := faasflow.CreateDag() | |
| dag.AddModifier("ReadAllItems", ReadSoldItemFromKafkaStream) | |
| itemDag := faasflow.CreateDag() | |
| itemDag.AddModifier("FilterRequiredFields", FilterSellBuyPriceFields) | |
| itemDag.AddModifier("SumSellPrice", ComputeTotalSellPrice) | |
| itemDag.AddModifier("SumBuyPrice", ComputeTotalBuyPrice) | |
| // To Serialize multiple input the vertex need an Aggregator | |
| itemDag.AddVertex("ComputeProfit", faasflow.Aggregator(func(inputs map[string][]byte) ([]byte, error) { | |
| Sell := inputs["SumSellPrice"] | |
| Buy := inputs["SumBuyPrice"] | |
| // Serialize input for callback | |
| profit := atoi(Buy) - atoi(Sell) | |
| // Map Profit my Items Id | |
| jsonProfit, _ := json.Marshal(map[string]int{ context.GetChoice(): profit } | |
| return jsonProfit, nil | |
| })) | |
| itemDag.AddEdge("FilterRequiredFields", "SumSellPrice") | |
| itemDag.AddEdge("FilterRequiredFields", "SumBuyPrice") | |
| itemDag.AddEdge("SumSellPrice", "ComputeProfit") | |
| itemDag.AddEdge("SumSellPrice", "ComputeProfit") | |
| dag.AddForEachDag("ComputeProfitForEachItem", itemDag, faasflow.ForEach(MapItemsById, MapProfitById)) | |
| dag.AddCallback("callback", "storage.io/bucket?id=3345612358265349126&file=" + context.Query.Get("duration")) | |
| dag.AddEdge("ReadAllItems", "ComputeProfitForEachItem") | |
| dag.AddEdge("ComputeProfitForEachItem", "callback") | |
| flow.ExecuteDag(dag) | |
| return nil | |
| } |
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