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framework.go
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framework.go
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package dlframework
import (
"os"
"path/filepath"
"strings"
"github.com/Masterminds/semver"
"github.com/Unknwon/com"
"github.com/pkg/errors"
"github.com/rai-project/config"
"golang.org/x/sync/syncmap"
)
var frameworkRegistry = syncmap.Map{}
func (f FrameworkManifest) MustCanonicalName() string {
s, err := f.CanonicalName()
if err != nil {
log.WithField("model_name", f.GetName()).Fatal("unable to get framework canonical name")
return ""
}
return s
}
func (f FrameworkManifest) CanonicalName() (string, error) {
frameworkName := f.GetName()
if frameworkName == "" {
return "", errors.New("framework name must not be empty")
}
frameworkVersion := f.GetVersion()
if frameworkVersion == "" {
frameworkVersion = "latest"
}
return strings.ToLower(frameworkName + ":" + frameworkVersion), nil
}
func (f FrameworkManifest) Register() error {
name, err := f.CanonicalName()
if err != nil {
return err
}
return f.RegisterNamed(name)
}
func (f FrameworkManifest) RegisterNamed(s string) error {
name := strings.ToLower(s)
if _, ok := frameworkRegistry.Load(name); ok {
return errors.Errorf("the %s framework has already been registered", s)
}
frameworkRegistry.Store(s, f)
return nil
}
func RegisteredFrameworkNames() []string {
return syncMapKeys(frameworkRegistry)
}
func Frameworks() ([]FrameworkManifest, error) {
names := RegisteredFrameworkNames()
fws := make([]FrameworkManifest, len(names))
for ii, name := range names {
f, ok := frameworkRegistry.Load(name)
if !ok {
return nil, errors.Errorf("framework %s was not found", name)
}
fw, ok := f.(FrameworkManifest)
if !ok {
return nil, errors.Errorf("framework %s was found but not of type FrameworkManifest", name)
}
fws[ii] = fw
}
return fws, nil
}
func (f FrameworkManifest) Models() []ModelManifest { // todo: this is not optimal
models := []ModelManifest{}
cn, err := f.CanonicalName()
if err != nil {
return []ModelManifest{}
}
names := RegisteredModelNames()
for _, name := range names {
name = strings.TrimPrefix(name, cn+"/")
m, err := f.FindModel(name)
if err != nil {
continue
}
models = append(models, *m)
}
return models
}
func (f FrameworkManifest) FindModel(name string) (*ModelManifest, error) {
var model *ModelManifest
frameworkVersionString := f.GetVersion()
if frameworkVersionString == "" {
return nil, errors.Errorf("expecting a framework version for framework = %v", f.GetName())
}
frameworkVersion, err := semver.NewVersion(frameworkVersionString)
if err != nil {
return nil, errors.Wrapf(err, "unable to parse version information for framework = %v", f.GetName())
}
frameworkCanonicalName, err := f.CanonicalName()
if err != nil {
return nil, err
}
name = strings.ToLower(name)
modelRegistry.Range(func(key0 interface{}, value interface{}) bool {
key, ok := key0.(string)
if !ok {
return true
}
key = strings.TrimPrefix(key, frameworkCanonicalName+"/")
if key != name {
return true
}
m, ok := value.(ModelManifest)
if !ok {
return true
}
if m.GetFramework().GetVersion() != "latest" {
cs, err := m.FrameworkConstraint()
if err != nil {
return true
}
ok := cs.Check(frameworkVersion)
if !ok {
return true
}
}
model = &m
return false
})
if model == nil {
return nil, errors.Errorf("model %s for framework %s not found in registry", name, f.GetName())
}
return model, nil
}
func FindFramework(name string) (*FrameworkManifest, error) {
var framework *FrameworkManifest
frameworkRegistry.Range(func(key0 interface{}, value interface{}) bool {
key, ok := key0.(string)
if !ok {
return true
}
if key != name {
return true
}
f, ok := value.(FrameworkManifest)
if !ok {
return true
}
framework = &f
return false
})
if framework == nil {
return nil, errors.Errorf("framework %s not found in registry", name)
}
return framework, nil
}
func (f *FrameworkManifest) WorkDir() (string, error) {
cannonicalName, err := f.CanonicalName()
if err != nil {
return "", err
}
workDir := filepath.Join(config.App.TempDir, strings.Replace(cannonicalName, ":", "_", -1))
if !com.IsDir(workDir) {
if err := os.MkdirAll(workDir, 0700); err != nil {
return "", errors.Wrapf(err, "failed to create framework work directory %v", workDir)
}
}
return workDir, nil
}