feat: optionloader for stream call client

config/streamcall.go

@@ -1 +1,10 @@
 package config
+
+type StreamCallConfig struct {
+	// from callopt
+	HostPort       string        `yaml:"host_port"`
+	URL            string        `yaml:"url"`
+	ConnectTimeout *TimeInterval `yaml:"connect_timeout"`
+	Tag            *Tag          `yaml:"tag"`
+	GRPCCompressor string        `yaml:"grpc_compressor"`
+}

configloader/yaml/streamcall.go

@@ -1 +1,28 @@
 package yaml
+
+import (
+	"fmt"
+	"github.com/kitex-contrib/optionloader/config"
+	"gopkg.in/yaml.v3"
+	"os"
+)
+
+func LoadStreamCallConfig(filePath string) (*config.StreamCallConfig, error) {
+
+	if _, err := os.Stat(filePath); os.IsNotExist(err) {
+		return nil, fmt.Errorf("file does not exist: %s", filePath)
+	}
+	data, err := os.ReadFile(filePath)
+	if err != nil {
+		return nil, err
+	}
+
+	var cfg config.StreamCallConfig
+
+	err = yaml.Unmarshal(data, &cfg)
+	if err != nil {
+		return nil, err
+	}
+
+	return &cfg, nil
+}

examples/yaml/client/callopt/streamcall/config.yaml

@@ -0,0 +1,9 @@
+host_port: "localhost:8080"
+url: "/your-service-name/your-method"
+connect_timeout:
+  unit: "s"
+  value: 3
+tag:
+  key: "your-tag-key"
+  value: "your-tag-value"
+grpc_compressor: "gzip"

examples/yaml/client/callopt/streamcall/main.go

@@ -1 +1,21 @@
-package client
+package main
+
+import (
+	"fmt"
+	"github.com/kitex-contrib/optionloader/configloader/yaml"
+	"github.com/kitex-contrib/optionloader/optionloader/client/callopt/streamcall"
+)
+
+func main() {
+	filePath := "./examples/yaml/client/callopt/streamcall/config.yaml"
+	cfg, err := yaml.LoadStreamCallConfig(filePath)
+	if err != nil {
+		panic(err)
+	}
+	loader := streamcall.NewOptionLoader()
+	options, err := loader.Load(cfg)
+	if err != nil {
+		panic(err)
+	}
+	fmt.Println(len(options))
+}

optionloader/client/callopt/streamcall/optionloader.go

@@ -1 +1,66 @@
 package streamcall
+
+import (
+	"fmt"
+	"github.com/cloudwego/kitex/client/callopt/streamcall"
+	"github.com/kitex-contrib/optionloader/config"
+	translator "github.com/kitex-contrib/optionloader/translator/client/callopt/streamcall"
+)
+
+type Translator func(config *config.StreamCallConfig) streamcall.Option
+
+type OptionLoader interface {
+	// RegisterTranslator registers a translator function.
+	RegisterTranslator(translator Translator)
+	// Load loads the server options from config and custom registered option translators.
+	Load(config *config.StreamCallConfig) ([]streamcall.Option, error)
+}
+
+type DefaultOptionLoader struct {
+	translators []Translator
+}
+
+func NewOptionLoader() OptionLoader {
+	return &DefaultOptionLoader{
+		translators: make([]Translator, 0),
+	}
+}
+
+// RegisterTranslator registers a translator function.
+// If the translator function has been registered, both will be registered,
+// and the translator functions will be called in the order of registration.
+func (loader *DefaultOptionLoader) RegisterTranslator(translator Translator) {
+	loader.translators = append(loader.translators, translator)
+}
+
+func (loader *DefaultOptionLoader) Load(config *config.StreamCallConfig) ([]streamcall.Option, error) {
+	if config == nil {
+		return nil, fmt.Errorf("client config not set")
+	}
+	var translatorsList []Translator
+
+	if config.HostPort != "" {
+		translatorsList = append(translatorsList, translator.HostPortTranslator)
+	}
+	if config.URL != "" {
+		translatorsList = append(translatorsList, translator.URLTranslator)
+	}
+	if config.ConnectTimeout != nil {
+		translatorsList = append(translatorsList, translator.ConnectTimeoutTranslator)
+	}
+	if config.Tag != nil {
+		translatorsList = append(translatorsList, translator.TagTranslator)
+	}
+	if config.GRPCCompressor != "" {
+		translatorsList = append(translatorsList, translator.GRPCCompressorTranslator)
+	}
+
+	// Add the custom registered option translators behind the default translators.
+	loader.translators = append(translatorsList, loader.translators...)
+
+	var options []streamcall.Option
+	for _, trans := range loader.translators {
+		options = append(options, trans(config))
+	}
+	return options, nil
+}

translator/client/callopt/streamcall/translator.go

@@ -1 +1,26 @@
 package streamcall
+
+import (
+	"github.com/cloudwego/kitex/client/callopt/streamcall"
+	"github.com/kitex-contrib/optionloader/config"
+)
+
+func HostPortTranslator(config *config.StreamCallConfig) streamcall.Option {
+	return streamcall.WithHostPort(config.HostPort)
+}
+
+func URLTranslator(config *config.StreamCallConfig) streamcall.Option {
+	return streamcall.WithURL(config.URL)
+}
+
+func ConnectTimeoutTranslator(config *config.StreamCallConfig) streamcall.Option {
+	return streamcall.WithConnectTimeout(config.ConnectTimeout.Transform())
+}
+
+func TagTranslator(config *config.StreamCallConfig) streamcall.Option {
+	return streamcall.WithTag(config.Tag.Key, config.Tag.Value)
+}
+
+func GRPCCompressorTranslator(config *config.StreamCallConfig) streamcall.Option {
+	return streamcall.WithGRPCCompressor(config.GRPCCompressor)
+}