config: minor changes to split config and watcher files
Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
This commit is contained in:
parent
72bd311686
commit
d38d96b268
34
env.go
34
env.go
@ -50,7 +50,7 @@ func (c *envConfig) Load(ctx context.Context, opts ...config.LoadOption) error {
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src, err := rutil.Zero(c.opts.Struct)
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if err == nil {
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err = c.fillValues(ctx, reflect.ValueOf(src))
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err = fillValues(ctx, reflect.ValueOf(src), c.opts.StructTag)
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}
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if err != nil && !c.opts.AllowFail {
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return err
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@ -70,7 +70,7 @@ func (c *envConfig) Load(ctx context.Context, opts ...config.LoadOption) error {
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return nil
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}
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func (c *envConfig) fillValue(ctx context.Context, value reflect.Value, val string) error {
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func fillValue(ctx context.Context, value reflect.Value, val string) error {
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switch value.Kind() {
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case reflect.Map:
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t := value.Type()
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@ -84,10 +84,10 @@ func (c *envConfig) fillValue(ctx context.Context, value reflect.Value, val stri
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kv := strings.FieldsFunc(nval, func(c rune) bool { return c == '=' })
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mkey := reflect.Indirect(reflect.New(kt))
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mval := reflect.Indirect(reflect.New(et))
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if err := c.fillValue(ctx, mkey, kv[0]); err != nil {
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if err := fillValue(ctx, mkey, kv[0]); err != nil {
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return err
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}
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if err := c.fillValue(ctx, mval, kv[1]); err != nil {
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if err := fillValue(ctx, mval, kv[1]); err != nil {
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return err
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}
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value.SetMapIndex(mkey, mval)
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@ -97,7 +97,7 @@ func (c *envConfig) fillValue(ctx context.Context, value reflect.Value, val stri
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value.Set(reflect.MakeSlice(reflect.SliceOf(value.Type().Elem()), len(nvals), len(nvals)))
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for idx, nval := range nvals {
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nvalue := reflect.Indirect(reflect.New(value.Type().Elem()))
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if err := c.fillValue(ctx, nvalue, nval); err != nil {
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if err := fillValue(ctx, nvalue, nval); err != nil {
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return err
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}
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value.Index(idx).Set(nvalue)
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@ -237,7 +237,7 @@ func (c *envConfig) setValues(ctx context.Context, valueOf reflect.Value) error
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return nil
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}
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func (c *envConfig) fillValues(ctx context.Context, valueOf reflect.Value) error {
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func fillValues(ctx context.Context, valueOf reflect.Value, structTag string) error {
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var values reflect.Value
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if valueOf.Kind() == reflect.Ptr {
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@ -264,7 +264,7 @@ func (c *envConfig) fillValues(ctx context.Context, valueOf reflect.Value) error
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switch value.Kind() {
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case reflect.Struct:
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value.Set(reflect.Indirect(reflect.New(value.Type())))
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if err := c.fillValues(ctx, value); err != nil {
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if err := fillValues(ctx, value, structTag); err != nil {
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return err
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}
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continue
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@ -278,12 +278,12 @@ func (c *envConfig) fillValues(ctx context.Context, valueOf reflect.Value) error
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value.Set(reflect.New(value.Type().Elem()))
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}
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value = value.Elem()
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if err := c.fillValues(ctx, value); err != nil {
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if err := fillValues(ctx, value, structTag); err != nil {
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return err
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}
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continue
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}
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tag, ok := field.Tag.Lookup(c.opts.StructTag)
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tag, ok := field.Tag.Lookup(structTag)
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if !ok {
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continue
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}
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@ -292,7 +292,7 @@ func (c *envConfig) fillValues(ctx context.Context, valueOf reflect.Value) error
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continue
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}
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if err := c.fillValue(ctx, value, val); err != nil {
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if err := fillValue(ctx, value, val); err != nil {
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return err
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}
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}
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@ -328,6 +328,20 @@ func (c *envConfig) Name() string {
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return c.opts.Name
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}
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func (c *envConfig) Watch(ctx context.Context, opts ...config.WatchOption) (config.Watcher, error) {
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w := &envWatcher{
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opts: c.opts,
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wopts: config.NewWatchOptions(opts...),
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done: make(chan struct{}),
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vchan: make(chan map[string]interface{}),
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echan: make(chan error),
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}
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go w.run()
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return w, nil
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}
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func NewConfig(opts ...config.Option) config.Config {
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options := config.NewOptions(opts...)
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if len(options.StructTag) == 0 {
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2
go.mod
2
go.mod
@ -4,5 +4,5 @@ go 1.16
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require (
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github.com/imdario/mergo v0.3.12
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github.com/unistack-org/micro/v3 v3.4.0
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github.com/unistack-org/micro/v3 v3.5.9
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)
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8
go.sum
8
go.sum
@ -1,12 +1,12 @@
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github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
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github.com/ef-ds/deque v1.0.4/go.mod h1:gXDnTC3yqvBcHbq2lcExjtAcVrOnJCbMcZXmuj8Z4tg=
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github.com/google/uuid v1.2.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
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github.com/golang-jwt/jwt v3.2.2+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I=
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github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
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github.com/imdario/mergo v0.3.12 h1:b6R2BslTbIEToALKP7LxUvijTsNI9TAe80pLWN2g/HU=
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github.com/imdario/mergo v0.3.12/go.mod h1:jmQim1M+e3UYxmgPu/WyfjB3N3VflVyUjjjwH0dnCYA=
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github.com/patrickmn/go-cache v2.1.0+incompatible/go.mod h1:3Qf8kWWT7OJRJbdiICTKqZju1ZixQ/KpMGzzAfe6+WQ=
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github.com/silas/dag v0.0.0-20210121180416-41cf55125c34/go.mod h1:7RTUFBdIRC9nZ7/3RyRNH1bdqIShrDejd1YbLwgPS+I=
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github.com/unistack-org/micro/v3 v3.4.0 h1:z9F3lgAb2j4cZ1ib5qBj66JPYUAzR4sNIJqUDjVwyVQ=
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github.com/unistack-org/micro/v3 v3.4.0/go.mod h1:LXmPfbJnJNvL0kQs8HfnkV3Wya2Wb+C7keVq++RCZnk=
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github.com/unistack-org/micro/v3 v3.5.9 h1:9iIxGZ56bVME7E9hqKIHeSHXkn69M9KFyJfaUzi7B9k=
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github.com/unistack-org/micro/v3 v3.5.9/go.mod h1:zQnZPEy842kQNcyjmVys6tdMjty4PHdyUUKYm1wrg1s=
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golang.org/x/net v0.0.0-20210510120150-4163338589ed/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
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golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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82
watcher.go
Normal file
82
watcher.go
Normal file
@ -0,0 +1,82 @@
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package env
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import (
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"reflect"
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"github.com/unistack-org/micro/v3/config"
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"github.com/unistack-org/micro/v3/util/jitter"
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rutil "github.com/unistack-org/micro/v3/util/reflect"
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)
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type envWatcher struct {
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opts config.Options
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wopts config.WatchOptions
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done chan struct{}
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vchan chan map[string]interface{}
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echan chan error
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}
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func (w *envWatcher) run() {
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ticker := jitter.NewTicker(w.wopts.MinInterval, w.wopts.MaxInterval)
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defer ticker.Stop()
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src := w.opts.Struct
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if w.wopts.Struct != nil {
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src = w.wopts.Struct
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}
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for {
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select {
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case <-w.done:
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return
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case <-ticker.C:
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dst, err := rutil.Zero(src)
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if err == nil {
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err = fillValues(w.opts.Context, reflect.ValueOf(dst), w.opts.StructTag)
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}
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if err != nil {
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w.echan <- err
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return
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}
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srcmp, err := rutil.StructFieldsMap(src)
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if err != nil {
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w.echan <- err
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return
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}
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dstmp, err := rutil.StructFieldsMap(dst)
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if err != nil {
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w.echan <- err
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return
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}
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for sk, sv := range srcmp {
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if reflect.DeepEqual(dstmp[sk], sv) {
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delete(dstmp, sk)
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}
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}
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if len(dstmp) > 0 {
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w.vchan <- dstmp
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src = dst
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}
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}
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}
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}
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func (w *envWatcher) Next() (map[string]interface{}, error) {
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select {
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case <-w.done:
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break
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case err := <-w.echan:
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return nil, err
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case v, ok := <-w.vchan:
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if !ok {
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break
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}
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return v, nil
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}
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return nil, config.ErrWatcherStopped
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}
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func (w *envWatcher) Stop() error {
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close(w.done)
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return nil
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}
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