1 files changed, 129 insertions, 0 deletions
diff --git a/src/kube2msb/msb_client.go b/src/kube2msb/msb_client.go
new file mode 100644
index 0000000..2c1b402
--- /dev/null
+++ b/src/kube2msb/msb_client.go
@@ -0,0 +1,129 @@
+/*
+Copyright 2017 ZTE, Inc. and others.
+
+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 main
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"log"
+	"net/http"
+)
+
+const (
+	urlPrefix = "/api/microservices/v1/services"
+)
+
+type Client interface {
+	Register(string)
+	DeRegister(string)
+}
+
+type MSBAgent struct {
+	Client
+	url string
+}
+
+func newMSBAgent(s string) (*MSBAgent, error) {
+	healthCheckURL := s + urlPrefix + "/health"
+	resp, err := http.Get(healthCheckURL)
+	if err != nil {
+		return nil, err
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("MSB agent:%s is not available", s)
+	}
+
+	return &MSBAgent{url: s}, nil
+}
+
+func (client *MSBAgent) Register(serviceInfo string) {
+	var (
+		sas = []*ServiceAnnotation{}
+	)
+	err := json.Unmarshal([]byte(serviceInfo), &sas)
+	if err != nil {
+		log.Printf("Failed to Unmarshal serviceInfo to ServiceAnnotation:%v", err)
+		return
+	}
+
+	for _, sa := range sas {
+		su := ServiceAnnotation2ServiceUnit(sa)
+		body, _ := json.Marshal(su)
+		postURL := client.url + urlPrefix
+
+		resp, err := http.Post(postURL, "application/json", bytes.NewReader(body))
+		if err != nil {
+			log.Printf("Failed to do a request:%v", err)
+			return
+		}
+
+		log.Printf("Http request to register service:%s returned code:%d", su.Name, resp.StatusCode)
+	}
+}
+
+func (client *MSBAgent) DeRegister(serviceInfo string) {
+	var (
+		sas = []*ServiceAnnotation{}
+	)
+
+	err := json.Unmarshal([]byte(serviceInfo), &sas)
+	if err != nil {
+		log.Printf("Failed to Unmarshal serviceInfo to ServiceAnnotation:%v", err)
+		return
+	}
+
+	for _, sa := range sas {
+		var deleteURL string
+		if sa.Version == "" {
+			deleteURL = client.url + urlPrefix + "/" + sa.ServiceName + "/version/" + "null" + "/nodes/" + sa.IP + "/" + sa.Port
+		} else {
+			deleteURL = client.url + urlPrefix + "/" + sa.ServiceName + "/version/" + sa.Version + "/nodes/" + sa.IP + "/" + sa.Port
+		}
+		log.Printf("deleteURL:%s", deleteURL)
+		req, err := http.NewRequest("DELETE", deleteURL, nil)
+		if err != nil {
+			log.Printf("(deleteURL:%s) failed to NewRequest:%v", deleteURL, err)
+			return
+		}
+
+		c := &http.Client{}
+		resp, err := c.Do(req)
+		if err != nil {
+			log.Printf("(deleteURL:%s) failed to do a request:%v", deleteURL, err)
+			return
+		}
+
+		log.Printf("Http request to deregister service:%s returned code:%d", sa.ServiceName, resp.StatusCode)
+	}
+}
+
+func ServiceAnnotation2ServiceUnit(sa *ServiceAnnotation) *ServiceUnit {
+	if sa == nil {
+		return nil
+	}
+
+	return &ServiceUnit{
+		Name:        sa.ServiceName,
+		Version:     sa.Version,
+		URL:         sa.URL,
+		Protocol:    sa.Protocol,
+		LBPolicy:    sa.LBPolicy,
+		VisualRange: sa.VisualRange,
+		Instances:   []InstanceUnit{{ServiceIP: sa.IP, ServicePort: sa.Port}},
+	}
+}