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Merge pull request #582 from MUzairS15/MUzairS15/generator/openapi
support generation of model from openapi schemas
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| package encoding | ||
|
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| import ( | ||
| "gopkg.in/yaml.v3" | ||
| ) | ||
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| func ToYaml(data []byte) ([]byte, error) { | ||
| var out map[string]interface{} | ||
| err := Unmarshal(data, &out) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
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| return yaml.Marshal(out) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,172 @@ | ||
| package component | ||
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| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "strings" | ||
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| "cuelang.org/go/cue" | ||
| "cuelang.org/go/cue/cuecontext" | ||
| cueJson "cuelang.org/go/encoding/json" | ||
| "github.com/layer5io/meshkit/generators/models" | ||
| "github.com/layer5io/meshkit/utils" | ||
| "github.com/layer5io/meshkit/utils/manifests" | ||
|
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| "gopkg.in/yaml.v3" | ||
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| "github.com/meshery/schemas/models/v1beta1" | ||
| "github.com/meshery/schemas/models/v1beta1/category" | ||
| "github.com/meshery/schemas/models/v1beta1/component" | ||
| "github.com/meshery/schemas/models/v1beta1/model" | ||
| ) | ||
|
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| func GenerateFromOpenAPI(resource string, pkg models.Package) ([]component.ComponentDefinition, error) { | ||
| if resource == "" { | ||
| return nil, nil | ||
| } | ||
| resource, err := getResolvedManifest(resource) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| cuectx := cuecontext.New() | ||
| cueParsedManExpr, err := cueJson.Extract("", []byte(resource)) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| parsedManifest := cuectx.BuildExpr(cueParsedManExpr) | ||
| definitions, err := utils.Lookup(parsedManifest, "components.schemas") | ||
|
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| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| fields, err := definitions.Fields() | ||
| if err != nil { | ||
| fmt.Printf("%v\n", err) | ||
| return nil, err | ||
| } | ||
| components := make([]component.ComponentDefinition, 0) | ||
|
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| for fields.Next() { | ||
| fieldVal := fields.Value() | ||
| kindCue, err := utils.Lookup(fieldVal, `"x-kubernetes-group-version-kind"[0].kind`) | ||
| if err != nil { | ||
| continue | ||
| } | ||
| kind, err := kindCue.String() | ||
| kind = strings.ToLower(kind) | ||
| if err != nil { | ||
| fmt.Printf("%v", err) | ||
| continue | ||
| } | ||
|
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| crd, err := fieldVal.MarshalJSON() | ||
| if err != nil { | ||
| fmt.Printf("%v", err) | ||
| continue | ||
| } | ||
| versionCue, err := utils.Lookup(fieldVal, `"x-kubernetes-group-version-kind"[0].version`) | ||
| if err != nil { | ||
| continue | ||
| } | ||
|
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| groupCue, err := utils.Lookup(fieldVal, `"x-kubernetes-group-version-kind"[0].group`) | ||
| if err != nil { | ||
| continue | ||
| } | ||
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| apiVersion, _ := versionCue.String() | ||
| if g, _ := groupCue.String(); g != "" { | ||
| apiVersion = g + "/" + apiVersion | ||
| } | ||
| modified := make(map[string]interface{}) //Remove the given fields which is either not required by End user (like status) or is prefilled by system (like apiVersion, kind and metadata) | ||
| err = json.Unmarshal(crd, &modified) | ||
| if err != nil { | ||
| fmt.Printf("%v", err) | ||
| continue | ||
| } | ||
|
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| modifiedProps, err := UpdateProperties(fieldVal, cue.ParsePath("properties.spec"), apiVersion) | ||
| if err == nil { | ||
| modified = modifiedProps | ||
| } | ||
|
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| DeleteFields(modified) | ||
| crd, err = json.Marshal(modified) | ||
| if err != nil { | ||
| fmt.Printf("%v", err) | ||
| continue | ||
| } | ||
|
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| c := component.ComponentDefinition{ | ||
| SchemaVersion: v1beta1.ComponentSchemaVersion, | ||
| Version: "v1.0.0", | ||
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| Format: component.JSON, | ||
| Component: component.Component{ | ||
| Kind: kind, | ||
| Version: apiVersion, | ||
| Schema: string(crd), | ||
| }, | ||
| // Metadata: compMetadata, | ||
| DisplayName: manifests.FormatToReadableString(kind), | ||
| Model: model.ModelDefinition{ | ||
| SchemaVersion: v1beta1.ModelSchemaVersion, | ||
| Version: "v1.0.0", | ||
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| Model: model.Model{ | ||
| Version: pkg.GetVersion(), | ||
| }, | ||
| Name: pkg.GetName(), | ||
| DisplayName: manifests.FormatToReadableString(pkg.GetName()), | ||
| Category: category.CategoryDefinition{ | ||
| Name: "Orchestration & Management", | ||
| }, | ||
| Metadata: &model.ModelDefinition_Metadata{ | ||
| AdditionalProperties: map[string]interface{}{ | ||
| "source_uri": pkg.GetSourceURL(), | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
|
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| components = append(components, c) | ||
| } | ||
| return components, nil | ||
|
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| } | ||
|
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| func getResolvedManifest(manifest string) (string, error) { | ||
| var m map[string]interface{} | ||
|
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| err := yaml.Unmarshal([]byte(manifest), &m) | ||
| if err != nil { | ||
| return "", utils.ErrDecodeYaml(err) | ||
| } | ||
|
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| byt, err := json.Marshal(m) | ||
| if err != nil { | ||
| return "", utils.ErrMarshal(err) | ||
| } | ||
|
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| cuectx := cuecontext.New() | ||
| cueParsedManExpr, err := cueJson.Extract("", byt) | ||
| if err != nil { | ||
| return "", ErrGetSchema(err) | ||
| } | ||
|
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| parsedManifest := cuectx.BuildExpr(cueParsedManExpr) | ||
| definitions, err := utils.Lookup(parsedManifest, "components.schemas") | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| resol := manifests.ResolveOpenApiRefs{} | ||
| cache := make(map[string][]byte) | ||
| resolved, err := resol.ResolveReferences(byt, definitions, cache) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| manifest = string(resolved) | ||
| return manifest, nil | ||
| } |
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