/
parse.go
228 lines (200 loc) · 4.92 KB
/
parse.go
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package driver
import (
"context"
"fmt"
"net"
"net/url"
"strconv"
"strings"
"github.com/zhufuyi/dtmdriver-sponge/pkg/consulcli"
"github.com/zhufuyi/dtmdriver-sponge/pkg/etcdcli"
"github.com/zhufuyi/dtmdriver-sponge/pkg/nacoscli"
"github.com/zhufuyi/dtmdriver-sponge/pkg/servicerd/discovery"
"github.com/zhufuyi/dtmdriver-sponge/pkg/servicerd/registry"
"github.com/zhufuyi/dtmdriver-sponge/pkg/servicerd/registry/consul"
"github.com/zhufuyi/dtmdriver-sponge/pkg/servicerd/registry/etcd"
"github.com/zhufuyi/dtmdriver-sponge/pkg/servicerd/registry/nacos"
"google.golang.org/grpc/resolver"
)
type consulConfig struct {
addr string // includes port, e.g. 127.0.0.1:8500
token string
}
type etcdConfig struct {
addrs []string // includes port, e.g. [127.0.0.1:2379]
username string
password string
}
type nacosConfig struct {
host string // excluding port, e.g. 127.0.0.1
port int
namespaceID string
username string
password string
}
type driverConfig struct {
Type string // consul, etcd, nacos
name string // default name is dtmservice
consul *consulConfig
etcd *etcdConfig
nacos *nacosConfig
}
// register dtm service to consul, etcd, nacos
func (c *driverConfig) register(instanceEndpoint string, id string) error {
var (
err error
iRegistry registry.Registry
instance *registry.ServiceInstance
)
switch c.Type {
case consulType:
iRegistry, instance, err = consul.NewRegistry(
c.consul.addr,
id,
c.name,
[]string{instanceEndpoint},
consulcli.WithToken(c.consul.token),
)
if err != nil {
return err
}
case etcdType:
iRegistry, instance, err = etcd.NewRegistry(
c.etcd.addrs,
id,
c.name,
[]string{instanceEndpoint},
etcdcli.WithAuth(c.etcd.username, c.etcd.password),
)
if err != nil {
return err
}
case nacosType:
iRegistry, instance, err = nacos.NewRegistry(
c.nacos.host,
c.nacos.port,
c.nacos.namespaceID,
id,
c.name,
[]string{instanceEndpoint},
nacoscli.WithAuth(c.nacos.username, c.nacos.password),
)
}
if err != nil {
return err
}
return iRegistry.Register(context.Background(), instance)
}
// resolver discovery:///your-service-name from consul, etcd, nacos
func (c *driverConfig) resolver() error {
var iDiscovery registry.Discovery
switch c.Type {
case consulType:
cli, err := consulcli.Init(c.consul.addr)
if err != nil {
return err
}
iDiscovery = consul.New(cli)
case etcdType:
cli, err := etcdcli.Init(c.etcd.addrs)
if err != nil {
return err
}
iDiscovery = etcd.New(cli)
case nacosType:
cli, err := nacoscli.NewNamingClient(
c.nacos.host,
c.nacos.port,
c.nacos.namespaceID)
if err != nil {
return err
}
iDiscovery = nacos.New(cli)
}
builder := discovery.NewBuilder(iDiscovery,
discovery.WithInsecure(true),
discovery.DisableDebugLog(),
)
// register a global resolver so that the dtmservice can resolve discovery:///your-service-name.
resolver.Register(builder)
return nil
}
func parseTarget(target string) (*driverConfig, error) {
cfg := &driverConfig{name: "dtmservice"}
u, err := url.Parse(target)
if err != nil {
return nil, err
}
cfg.Type = u.Scheme
if cfg.Type != consulType && cfg.Type != etcdType && cfg.Type != nacosType {
return nil, fmt.Errorf("invalid registry type: %s, only supports consul, etcd, nacos, "+
"usage: <sheme>://<host>:<ip>/dtmservice", cfg.Type)
}
if u.Path != "" {
pathParts := strings.Split(u.Path, "/")
cfg.name = pathParts[len(pathParts)-1]
}
var (
port int
host, addr string
)
if u.Port() == "" {
err = fmt.Errorf("port is empty: %s", u.Host)
} else {
port, err = strconv.Atoi(u.Port())
if err != nil {
return nil, err
}
if u.Host == "" {
return nil, fmt.Errorf("registry address is empty")
}
host = strings.ReplaceAll(u.Host, ":"+u.Port(), "")
addr = u.Host
}
params := u.Query()
if err != nil {
return nil, err
}
switch cfg.Type {
case consulType:
token := params.Get("token")
cfg.consul = &consulConfig{
addr: addr,
token: token,
}
case etcdType:
username := params.Get("username")
password := params.Get("password")
cfg.etcd = &etcdConfig{
addrs: []string{addr},
username: username,
password: password,
}
case nacosType:
username := params.Get("username")
password := params.Get("password")
namespaceID := params.Get("namespaceID")
cfg.nacos = &nacosConfig{
host: host,
port: port,
namespaceID: namespaceID,
username: username,
password: password,
}
}
return cfg, nil
}
func parseEndpoint(endpoint string) (string, error) {
u, err := url.Parse(endpoint)
if err != nil {
return "", err
}
if u.Scheme != "grpc" && u.Scheme != "http" {
return "", fmt.Errorf("invalid dtm service protocol: %s, only supports grpc, http, e.g. grpc://localhost:36790", u.Scheme)
}
host, port, err := net.SplitHostPort(u.Host)
if err != nil {
return "", err
}
return u.Scheme + "_" + host + "_" + port, nil
}