tracing/jsonrpc/go-server/app/user_provider.go

package main

import (
	"context"
	"fmt"
	"strconv"
	"time"
)

import (
	"github.com/apache/dubbo-go/config"

	"github.com/dubbogo/gost/log"

	"github.com/opentracing/opentracing-go"

	perrors "github.com/pkg/errors"
)

func init() {
	config.SetProviderService(new(UserProvider))
}

type UserProvider struct {
}

func (u *UserProvider) getUser(userID string) (*User, error) {
	if user, ok := userMap[userID]; ok {
		return &user, nil
	}

	return nil, fmt.Errorf("invalid user id:%s", userID)
}

func (u *UserProvider) GetUser(ctx context.Context, req []interface{}, rsp *User) error {
	var (
		err  error
		user *User
	)

	if ctx == nil {
		gxlog.CInfo("ctx is nil %v")
		ctx = context.Background()
	}
	span, _ := opentracing.StartSpanFromContext(ctx, "User-Provider-non")
	defer span.Finish()
	gxlog.CInfo("req:%#v", req)
	if ctx != nil {
		gxlog.CInfo("tracing ID: %v", ctx.Value("TracingID"))
	}
	time.Sleep(10 * time.Millisecond)
	user, err = u.getUser(req[0].(string))
	if err == nil {
		*rsp = *user
		gxlog.CInfo("rsp:%#v", rsp)
	}
	return err
}

func (u *UserProvider) GetUser0(id string, name string) (User, error) {
	var err error

	gxlog.CInfo("id:%s, name:%s", id, name)
	user, err := u.getUser(id)
	if err != nil {
		return User{}, err
	}
	if user.Name != name {
		return User{}, perrors.New("name is not " + user.Name)
	}
	return *user, err
}

func (u *UserProvider) GetUser2(ctx context.Context, req []interface{}, rsp *User) error {
	var err error

	gxlog.CInfo("req:%#v", req)
	rsp.ID = strconv.FormatFloat(req[0].(float64), 'f', 0, 64)
	rsp.Sex = Gender(MAN).String()
	return err
}

func (u *UserProvider) GetUser3() error {
	return nil
}

func (u *UserProvider) GetUsers(req []interface{}) ([]User, error) {
	var err error

	gxlog.CInfo("req:%s", req)
	t := req[0].([]interface{})
	user, err := u.getUser(t[0].(string))
	if err != nil {
		return nil, err
	}
	gxlog.CInfo("user:%v", user)
	user1, err := u.getUser(t[1].(string))
	if err != nil {
		return nil, err
	}
	gxlog.CInfo("user1:%v", user1)

	return []User{*user, *user1}, err
}

func (s *UserProvider) MethodMapper() map[string]string {
	return map[string]string{
		"GetUser2": "getUser",
	}
}

func (u *UserProvider) Reference() string {
	return "UserProvider"
}