Completed DynamoDB + DAX Benchmarker with a nice TUI to boot

pkg/models/models.go

@@ -0,0 +1,89 @@
+package models
+
+import (
+	"fmt"
+	"math/rand"
+	"strconv"
+	"time"
+
+	"github.com/aws/aws-sdk-go/service/dynamodb"
+	"github.com/google/uuid"
+	"gopkg.in/loremipsum.v1"
+)
+
+type DynamoOperation int
+
+const (
+	DynamoRead DynamoOperation = iota
+	DynamoWrite
+	DynamoUpdate
+)
+
+func (d DynamoOperation) String() string {
+	switch d {
+	case DynamoRead:
+		return "read"
+	case DynamoWrite:
+		return "write"
+	case DynamoUpdate:
+		return "update"
+	default:
+		return "read"
+	}
+}
+
+type Scenario int
+
+const (
+	ScenarioCrud Scenario = iota
+	ScenarioReadOnly
+)
+
+func (s Scenario) String() string {
+	switch s {
+	case ScenarioCrud:
+		return "crud"
+	case ScenarioReadOnly:
+		return "readOnly"
+	default:
+		return "crud"
+	}
+}
+
+type BenchmarkingItem map[string]*dynamodb.AttributeValue
+
+func NewBenchmarkingItem(attributes int) BenchmarkingItem {
+	benchmarkingItem := make(map[string]*dynamodb.AttributeValue)
+	r := rand.New(rand.NewSource(time.Now().UnixNano()))
+	loremIpsumGenerator := loremipsum.NewWithSeed(time.Now().UnixNano())
+	id := uuid.New().String()
+	benchmarkingItem["id"] = &dynamodb.AttributeValue{S: &id}
+
+	for i := 0; i < attributes; i++ {
+		switch i % 2 {
+		case 1:
+			float := fmt.Sprintf("%.2f", r.Float64()*32.00)
+			benchmarkingItem[strconv.Itoa(i)] = &dynamodb.AttributeValue{N: &float}
+		default:
+			sentence := loremIpsumGenerator.Sentence()
+			benchmarkingItem[strconv.Itoa(i)] = &dynamodb.AttributeValue{S: &sentence}
+		}
+	}
+
+	return benchmarkingItem
+}
+
+type DynamoDbSimulationMetrics struct {
+	Operation                  string   `json:"operation"`
+	Timestamp                  int64    `json:"timestamp"`
+	Successful                 bool     `json:"successful"`
+	Scenario                   string   `json:"scenario"`
+	SimulationTime             *float64 `json:"simulationTime,omitempty"`
+	ReadTime                   *float64 `json:"readTime,omitempty"`
+	WriteTime                  *float64 `json:"writeTime,omitempty"`
+	WriteItemConfirmationTime  *float64 `json:"writeItemConfirmationTime,omitempty"`
+	UpdateTime                 *float64 `json:"updateItem,omitempty"`
+	UpdateItemConfirmationTime *float64 `json:"updateItemConfirmationTime,omitempty"`
+	DeleteTime                 *float64 `json:"deleteTime,omitempty"`
+	DeleteItemConfirmationTime *float64 `json:"deleteItemConfirmationTime,omitempty"`
+}