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adapter.go
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adapter.go
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// Copyright (c) 2021 Terminus, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package nacos
import (
"encoding/json"
"fmt"
"io/ioutil"
"net"
"net/http"
"net/url"
"sort"
"strconv"
"strings"
"github.com/erda-project/erda-proto-go/msp/registercenter/pb"
"github.com/erda-project/erda/pkg/http/httpclient"
)
// Adapter .
type Adapter struct {
ClusterName string
Addr string
client *httpclient.HTTPClient
}
// NewAdapter .
func NewAdapter(clusterName, addr string) *Adapter {
return &Adapter{
ClusterName: clusterName,
Addr: addr,
client: httpclient.New(httpclient.WithClusterDialer(clusterName)),
}
}
// GetDubboInterfaceList .
func (a *Adapter) GetDubboInterfaceList(namespace string) ([]*pb.Interface, error) {
count, err := a.countInterface(namespace, "")
if err != nil {
return nil, err
}
result, err := a.getInterfaceDetail(namespace, "", 1, count)
if err != nil {
return nil, err
}
var keys []string
values := make(map[string]*pb.Interface)
for _, item := range result {
if len(item.getSide()) <= 0 {
continue
}
iname := item.getInterfaceName()
if exist, ok := values[iname]; ok {
values[iname] = mergeInterface(exist, item.ToInterface())
} else {
keys = append(keys, iname)
values[iname] = item.ToInterface()
}
}
sort.Strings(keys)
list := make([]*pb.Interface, 0, len(result))
for _, key := range keys {
list = append(list, values[key])
}
return list, nil
}
func mergeInterface(a *pb.Interface, b *pb.Interface) *pb.Interface {
if a == nil {
return b
}
if b != nil && a.Interfacename == b.Interfacename {
providers := make(map[string]struct{})
for _, p := range a.Providerlist {
providers[p] = struct{}{}
}
for _, p := range b.Providerlist {
if _, ok := providers[p]; !ok {
a.Providerlist = append(a.Providerlist, p)
}
}
if len(b.Providermap) > 0 && a.Providermap == nil {
a.Providermap = make(map[string]*pb.InterfaceOwner)
}
for k, v := range b.Providermap {
if _, ok := a.Providermap[k]; !ok {
a.Providermap[k] = v
}
}
consumers := make(map[string]struct{})
for _, p := range a.Consumerlist {
consumers[p] = struct{}{}
}
for _, p := range b.Consumerlist {
if _, ok := consumers[p]; !ok {
a.Consumerlist = append(a.Consumerlist, p)
}
}
if len(b.Consumermap) > 0 && a.Consumermap == nil {
a.Consumermap = make(map[string]*pb.InterfaceOwner)
}
for k, v := range b.Consumermap {
if _, ok := a.Consumermap[k]; !ok {
a.Consumermap[k] = v
}
}
}
return a
}
func (a *Adapter) GetHTTPInterfaceList(namespace string) ([]*pb.HTTPService, error) {
count, err := a.countInterface(namespace, "")
if err != nil {
return nil, err
}
result, err := a.getInterfaceDetail(namespace, "", 1, count)
if err != nil {
return nil, err
}
list := make([]*pb.HTTPService, 0, len(result))
for _, item := range result {
if len(item.getSide()) > 0 {
continue
}
list = append(list, item.ToHTTPService())
}
return list, nil
}
func (a *Adapter) EnableHTTPService(namespace string, service *pb.EnableHTTPService) (*pb.EnableHTTPService, error) {
count, err := a.countInterface(namespace, service.ServiceName)
if err != nil {
return nil, err
}
results, err := a.getInterfaceDetail(namespace, service.ServiceName, 1, count)
if err != nil {
return nil, err
}
serviceIP, servicePort, err := net.SplitHostPort(service.Address)
if err != nil {
serviceIP = service.Address
}
var result *ServiceSearchResult
for _, r := range results {
if !strings.EqualFold(r.ServiceName, service.ServiceName) {
continue
}
for _, ip := range r.getIPs() {
if ip == serviceIP {
result = r
break
}
}
}
if result == nil {
return nil, nil
}
h := result.getHostByIP(serviceIP)
if h == nil {
return nil, nil
}
params := url.Values{}
params.Set("serviceName", service.ServiceName)
params.Set("clusterName", "DEFAULT")
params.Set("ip", serviceIP)
params.Set("port", servicePort)
params.Set("ephemeral", "true")
params.Set("weight", strconv.FormatFloat(h.Weight, 'f', -1, 64))
params.Set("enabled", strconv.FormatBool(service.Online))
params.Set("namespaceId", namespace)
byts, _ := json.Marshal(h.MetaData)
params.Set("metadata", string(byts))
resp, err := a.client.Put(a.Addr).Path("/nacos/v1/ns/instance").Params(params).Do().RAW()
if err != nil {
return nil, err
}
byts, err = ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
if http.StatusOK <= resp.StatusCode && resp.StatusCode < http.StatusMultipleChoices {
if strings.EqualFold(string(byts), "ok") {
return service, nil
}
}
return nil, fmt.Errorf("unexpect status=%d, body=%q", resp.StatusCode, string(byts))
}
func (a *Adapter) countInterface(namespace, keyword string) (int64, error) {
params := url.Values{}
params.Set("hasIpCount", "false")
params.Set("withInstances", "false")
params.Set("pageNo", "1")
params.Set("pageSize", "10")
params.Set("serviceNameParam", keyword)
params.Set("namespaceId", namespace)
resp, err := a.client.Get(a.Addr).Path("/nacos/v1/ns/catalog/services").Params(params).Do().RAW()
if err != nil {
return 0, err
}
var body struct {
Count int64 `json:"count"`
}
if http.StatusOK <= resp.StatusCode && resp.StatusCode < http.StatusMultipleChoices {
err = json.NewDecoder(resp.Body).Decode(&body)
if err != nil {
return 0, err
}
}
return body.Count, nil
}
func (a *Adapter) getInterfaceDetail(namespace, keyword string, pageNo, pageSize int64) ([]*ServiceSearchResult, error) {
params := url.Values{}
params.Set("hasIpCount", "false")
params.Set("withInstances", "true")
params.Set("pageNo", strconv.FormatInt(pageNo, 10))
params.Set("pageSize", strconv.FormatInt(pageSize, 10))
params.Set("serviceNameParam", keyword)
params.Set("namespaceId", namespace)
resp, err := a.client.Get(a.Addr).Path("/nacos/v1/ns/catalog/services").Params(params).Do().RAW()
if err != nil {
return nil, err
}
var list []*ServiceSearchResult
if http.StatusOK <= resp.StatusCode && resp.StatusCode < http.StatusMultipleChoices {
err = json.NewDecoder(resp.Body).Decode(&list)
if err != nil {
return nil, err
}
}
filtered := make([]*ServiceSearchResult, 0, len(list))
for _, item := range list {
if item == nil || len(item.ClusterMap) <= 0 || item.ClusterMap["DEFAULT"] == nil || len(item.ClusterMap["DEFAULT"].Hosts) <= 0 {
continue
}
filtered = append(filtered, item)
}
return filtered, nil
}