/
model.go
253 lines (212 loc) · 7.89 KB
/
model.go
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package melt
import (
"fmt"
"os"
"path/filepath"
"strings"
"github.com/apex/log"
"github.com/spf13/afero"
"github.com/spf13/cobra"
"golang.org/x/exp/maps"
"gopkg.in/yaml.v2"
sol "github.com/cisco-open/fsoc/cmd/solution"
"github.com/cisco-open/fsoc/output"
"github.com/cisco-open/fsoc/platform/melt"
)
// meltCmd represents the login command
var meltModelCmd = &cobra.Command{
Use: "model",
Short: "Generates a fsoc telemetry data model .yaml file based on your solution domain model",
Long: `This command converts your fmm domain models as a fsoc telemetry data model .yaml file so you can generate mock telemetry data for your solutioin.`,
TraverseChildren: true,
Run: meltModel,
}
func init() {
meltModelCmd.Flags().String("tag", "", "tag for the solution (only for pseudo-isolated solutions, DEPRECATED)")
meltModelCmd.Flags().String("env-file", "", "path to the env vars json file (only for pseudo-isolated solutions, DEPRECATED)")
meltModelCmd.MarkFlagsMutuallyExclusive("tag", "env-file")
meltCmd.AddCommand(meltModelCmd)
}
func meltModel(cmd *cobra.Command, args []string) {
manifest, err := sol.GetManifest(".")
if err != nil {
log.Fatalf("Failed to get manifest: %v", err)
}
if manifest.HasPseudoIsolation() {
// determine tag
tag, envFile := sol.DetermineTagEnvFile(cmd, ".") // --tag, --stable, --env-file, FSOC_SOLUTION_TAG env var, .tag file
if tag == "" && envFile == "" {
log.Fatal("A tag must be specified for modeling in pseudo-isolated solutions")
}
if tag != "" {
if !sol.IsValidSolutionTag(tag) {
log.Fatalf("Invalid tag %q", tag)
}
}
envVars, err := sol.LoadEnvVars(cmd, tag, envFile) // the tag now remains in the envVars (whether read from file or synthesized)
if err != nil {
log.Fatalf("Failed to define isolation environment: %v", err)
}
currentDirectory, err := filepath.Abs(".")
if err != nil {
log.Fatalf("Error getting current directory: %v", err)
}
fileSystemRoot := afero.NewBasePathFs(afero.NewOsFs(), currentDirectory)
isolateNamespace := fmt.Sprintf("%s%s", strings.Split(manifest.Name, "$")[0], sol.GetPseudoIsolationTag(envVars))
fileName := fmt.Sprintf("%s-%s-melt.yaml", isolateNamespace, manifest.SolutionVersion)
fsocData := getFsocDataModel(cmd, manifest, isolateNamespace)
output.PrintCmdStatus(cmd, fmt.Sprintf("Generating %s\n", fileName))
writeDataFile(fsocData, fileName)
err = sol.ReplaceStringInFile(fileSystemRoot, fileName, "${sys.solutionId}", isolateNamespace)
if err != nil {
log.Fatalf("Error isolating melt model file: %v", err)
}
} else {
fileName := fmt.Sprintf("%s-%s-melt.yaml", manifest.Name, manifest.SolutionVersion)
fsocData := getFsocDataModel(cmd, manifest, "")
output.PrintCmdStatus(cmd, fmt.Sprintf("Generating %s\n", fileName))
writeDataFile(fsocData, fileName)
}
}
func getFsocDataModel(cmd *cobra.Command, manifest *sol.Manifest, isolationNamespace string) *melt.FsocData {
fsocData := &melt.FsocData{}
fmmEntities := manifest.GetFmmEntities()
output.PrintCmdStatus(cmd, fmt.Sprintf("Adding %v entities to the fsoc data model\n", len(fmmEntities)))
fmmMetrics := manifest.GetFmmMetrics()
output.PrintCmdStatus(cmd, fmt.Sprintf("Adding %v metrics to the fsoc data model\n", len(fmmMetrics)))
fmmEvents := manifest.GetFmmEvents()
output.PrintCmdStatus(cmd, fmt.Sprintf("Adding %v events to the fsoc data model\n", len(fmmEvents)))
if isolationNamespace != "" {
realNamespace := manifest.GetSolutionName()
for _, e := range fmmEntities {
e.Namespace.Name = isolationNamespace
fmmAttrsDefs := e.AttributeDefinitions.Attributes
for k, v := range fmmAttrsDefs {
if strings.Contains(k, realNamespace) {
entityAttr := k[len(realNamespace)+1:]
newKey := fmt.Sprintf("%s.%s", e.Namespace.Name, entityAttr)
newValue := v
delete(fmmAttrsDefs, k)
fmmAttrsDefs[newKey] = newValue
}
}
metricRefs := e.MetricTypes
e.MetricTypes = GetIsolatedRefs(metricRefs, manifest, isolationNamespace)
evtRefs := e.EventTypes
e.EventTypes = GetIsolatedRefs(evtRefs, manifest, isolationNamespace)
}
for _, m := range fmmMetrics {
m.Namespace.Name = isolationNamespace
}
for _, evt := range fmmEvents {
evt.Namespace.Name = isolationNamespace
}
}
fsocMetrics := GetFsocMetrics(fmmMetrics)
fsocEvents := GetFsocEvents(fmmEvents)
fsocEntities := GetFsocEntities(fmmEntities, fsocMetrics, fsocEvents)
fsocData.Melt = fsocEntities
return fsocData
}
func GetIsolatedRefs(fmmTypeRefs []string, manifest *sol.Manifest, isolationNamespace string) []string {
newFmmTypeRefs := make([]string, 0)
for _, typeRef := range fmmTypeRefs {
fmmTypeConvention := strings.Split(typeRef, ":")
if strings.Contains(fmmTypeConvention[0], manifest.GetNamespaceName()) {
isolateMetricRef := fmt.Sprintf("%s:%s", isolationNamespace, fmmTypeConvention[1])
newFmmTypeRefs = append(newFmmTypeRefs, isolateMetricRef)
}
}
return newFmmTypeRefs
}
func GetFsocEvents(fmmEvents []*sol.FmmEvent) []*melt.Log {
fsocEvents := make([]*melt.Log, 0)
for _, fmmEvt := range fmmEvents {
fsocEType := fmt.Sprintf("%s:%s", fmmEvt.Namespace.Name, fmmEvt.Name)
fsocEvt := melt.NewEvent(fsocEType)
for attrName, attrTypeDef := range fmmEvt.AttributeDefinitions.Attributes {
fsocEvt.SetAttribute(attrName, getDefaultValue(attrTypeDef))
}
fsocEvents = append(fsocEvents, fsocEvt)
}
return fsocEvents
}
func GetFsocMetrics(fmmMetrics []*sol.FmmMetric) []*melt.Metric {
fsocMetrics := make([]*melt.Metric, 0)
for _, fmmMt := range fmmMetrics {
fsocMType := fmt.Sprintf("%s:%s", fmmMt.Namespace.Name, fmmMt.Name)
fsocMt := melt.NewMetric(fsocMType, fmmMt.Unit, string(fmmMt.ContentType), string(fmmMt.Type))
if fmmMt.AttributeDefinitions != nil {
for attrName, attrTypeDef := range fmmMt.AttributeDefinitions.Attributes {
fsocMt.SetAttribute(attrName, getDefaultValue(attrTypeDef))
}
}
fsocMetrics = append(fsocMetrics, fsocMt)
}
return fsocMetrics
}
func GetFsocEntities(fmmEntities []*sol.FmmEntity, fsocMetrics []*melt.Metric, fsocEvents []*melt.Log) []*melt.Entity {
fsocEntities := make([]*melt.Entity, 0)
for _, fmmE := range fmmEntities {
fsocEType := fmt.Sprintf("%s:%s", fmmE.Namespace.Name, fmmE.Name)
fsocE := melt.NewEntity(fsocEType)
fmmAttrs := maps.Keys(fmmE.AttributeDefinitions.Attributes)
for _, fmmAttr := range fmmAttrs {
origName := fmmAttr
if !strings.Contains(fmmAttr, fmmE.Namespace.Name) {
fmmAttr = fmt.Sprintf("%s.%s.%s", fmmE.Namespace.Name, fmmE.Name, fmmAttr)
}
fsocE.SetAttribute(fmmAttr, getDefaultValue(fmmE.AttributeDefinitions.Attributes[origName]))
}
//adding fsoc metrics to the model
for _, fmmEM := range fmmE.MetricTypes {
fsocMetricType := fmmEM
for _, fsocMt := range fsocMetrics {
if fsocMt.TypeName == fsocMetricType {
fsocE.AddMetric(fsocMt)
}
}
}
//adding fsoc events to the model
for _, fmmEM := range fmmE.EventTypes {
fsocEventType := fmmEM
for _, fsocEvt := range fsocEvents {
if fsocEvt.TypeName == fsocEventType {
fsocE.AddLog(fsocEvt)
}
}
}
// add logs tp the entity
for i := 0; i < 2; i++ {
fsocL := melt.NewLog()
fsocL.SetAttribute("level", "info")
fsocL.Severity = "INFO"
fsocL.Body = fmt.Sprintf("hello world-%d for an entity of type %s", i, fsocE.TypeName)
fsocE.AddLog(fsocL)
}
fsocEntities = append(fsocEntities, fsocE)
}
return fsocEntities
}
func writeDataFile(fsoData *melt.FsocData, fileName string) {
fsoDataYamlFile, err := os.Create(fileName)
if err != nil {
log.Fatalf("Failed to create FsoData yaml file %q: %v", fileName, err)
}
defer fsoDataYamlFile.Close()
svcJson, _ := yaml.Marshal(fsoData)
_, _ = fsoDataYamlFile.WriteString(string(svcJson))
fsoDataYamlFile.Close()
}
func getDefaultValue(td *sol.FmmAttributeTypeDef) interface{} {
switch td.Type {
case "boolean":
return false
case "long":
return 1
case "double":
return 1.1
default:
return ""
}
}