-
Notifications
You must be signed in to change notification settings - Fork 5.6k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
feat(inputs.gnmi): Add yang-model decoding of JSON IETF payloads
- Loading branch information
Showing
254 changed files
with
98,628 additions
and
25 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,149 @@ | ||
| package yangmodel | ||
|
|
||
| import ( | ||
| "encoding/base64" | ||
| "encoding/binary" | ||
| "errors" | ||
| "fmt" | ||
| "math" | ||
| "os" | ||
| "path/filepath" | ||
|
|
||
| "github.com/openconfig/goyang/pkg/yang" | ||
| ) | ||
|
|
||
| var ( | ||
| ErrInsufficientData = errors.New("insufficient data") | ||
| ErrNotFound = errors.New("no such node") | ||
| ) | ||
|
|
||
| type Decoder struct { | ||
| modules *yang.Modules | ||
| } | ||
|
|
||
| func NewDecoder(paths ...string) (*Decoder, error) { | ||
| modules := yang.NewModules() | ||
| modules.ParseOptions.IgnoreSubmoduleCircularDependencies = true | ||
|
|
||
| var moduleFiles []string | ||
| modulePaths := paths | ||
| unresolved := paths | ||
| for { | ||
| var newlyfound []string | ||
| for _, path := range unresolved { | ||
| entries, err := os.ReadDir(path) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("reading directory %q failed: %w", path, err) | ||
| } | ||
| for _, entry := range entries { | ||
| info, err := entry.Info() | ||
| if err != nil { | ||
| fmt.Printf("Couldn't get info for %q: %v", entry.Name(), err) | ||
| continue | ||
| } | ||
|
|
||
| if info.Mode()&os.ModeSymlink != 0 { | ||
| target, err := filepath.EvalSymlinks(entry.Name()) | ||
| if err != nil { | ||
| fmt.Printf("Couldn't evaluate symbolic links for %q: %v", entry.Name(), err) | ||
| continue | ||
| } | ||
| info, err = os.Lstat(target) | ||
| if err != nil { | ||
| fmt.Printf("Couldn't stat target %v: %v", target, err) | ||
| continue | ||
| } | ||
| } | ||
|
|
||
| newPath := filepath.Join(path, info.Name()) | ||
| if info.IsDir() { | ||
| newlyfound = append(newlyfound, newPath) | ||
| continue | ||
| } | ||
| if info.Mode().IsRegular() && filepath.Ext(info.Name()) == ".yang" { | ||
| moduleFiles = append(moduleFiles, info.Name()) | ||
| } | ||
| } | ||
| } | ||
| if len(newlyfound) == 0 { | ||
| break | ||
| } | ||
|
|
||
| modulePaths = append(modulePaths, newlyfound...) | ||
| unresolved = newlyfound | ||
| } | ||
|
|
||
| // Add the module paths | ||
| modules.AddPath(modulePaths...) | ||
| for _, fn := range moduleFiles { | ||
| if err := modules.Read(fn); err != nil { | ||
| fmt.Printf("reading file %q failed: %v\n", fn, err) | ||
| } | ||
| } | ||
| if errs := modules.Process(); len(errs) > 0 { | ||
| return nil, errors.Join(errs...) | ||
| } | ||
|
|
||
| return &Decoder{modules: modules}, nil | ||
| } | ||
|
|
||
| func (d *Decoder) FindLeaf(namespace, identifier string) (*yang.Leaf, error) { | ||
| // Get module name from the element | ||
| entry, errs := d.modules.GetModule(namespace) | ||
| if len(errs) > 0 { | ||
| return nil, fmt.Errorf("getting module %q failed: %w", namespace, errors.Join(errs...)) | ||
| } | ||
|
|
||
| module, err := d.modules.FindModuleByNamespace(entry.Namespace().NName()) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("finding module %q failed: %w", namespace, err) | ||
| } | ||
|
|
||
| for _, grp := range module.Grouping { | ||
| for _, leaf := range grp.Leaf { | ||
| if leaf.Name == identifier { | ||
| return leaf, nil | ||
| } | ||
| } | ||
| } | ||
| return nil, ErrNotFound | ||
| } | ||
|
|
||
| func DecodeLeaf(leaf *yang.Leaf, value interface{}) (interface{}, error) { | ||
| schema := leaf.Type.YangType | ||
|
|
||
| if schema.Kind != yang.Ybinary { | ||
| return value, nil | ||
| } | ||
|
|
||
| // Binary values are encodes as base64 strings | ||
| s, ok := value.(string) | ||
| if !ok { | ||
| return value, nil | ||
| } | ||
|
|
||
| // Decode the encoded binary values | ||
| raw, err := base64.StdEncoding.DecodeString(s) | ||
| if err != nil { | ||
| return value, err | ||
| } | ||
|
|
||
| switch schema.Name { | ||
| case "ieeefloat32": | ||
| if len(raw) != 4 { | ||
| return raw, fmt.Errorf("%w, expected 4 but got %d bytes", ErrInsufficientData, len(raw)) | ||
| } | ||
| return math.Float32frombits(binary.BigEndian.Uint32(raw)), nil | ||
| default: | ||
| return raw, nil | ||
| } | ||
| } | ||
|
|
||
| func (d *Decoder) DecodeElement(namespace, identifier string, value interface{}) (interface{}, error) { | ||
| leaf, err := d.FindLeaf(namespace, identifier) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("finding %s failed: %w", identifier, err) | ||
| } | ||
|
|
||
| return DecodeLeaf(leaf, value) | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| psu,name=PowerSupply1/A,path=openconfig:/components/component/power-supply/state,source=127.0.0.1 openconfig_platform_psu:capacity=715,openconfig_platform_psu:enabled=true,openconfig_platform_psu:input_current=0.47099998593330383,openconfig_platform_psu:input_voltage=208.5,openconfig_platform_psu:output_current=1.2029999494552612,openconfig_platform_psu:output_power=68.625,openconfig_platform_psu:output_voltage=56.367000579833984 1711178737105194000 | ||
| psu,name=PowerSupply1/B,path=openconfig:/components/component/power-supply/state,source=127.0.0.1 openconfig_platform_psu:capacity=715,openconfig_platform_psu:enabled=true,openconfig_platform_psu:input_current=0.3930000066757202,openconfig_platform_psu:input_voltage=209.75,openconfig_platform_psu:output_current=0.9380000233650208,openconfig_platform_psu:output_power=51.875,openconfig_platform_psu:output_voltage=56.367000579833984 1711178737105194000 |
Oops, something went wrong.