Added api to list and reconnect a XDS-Server.

Added following routes:
 /servers  =>  list all known XDS-Server
 /servers/:id  => get info of a XDS-Server
 /servers/:id/reconnect  => force reconnection of a XDS-Server

Signed-off-by: Sebastien Douheret <sebastien.douheret@iot.bzh>

1 files changed, 93 insertions, 0 deletions

diff --git a/lib/agent/apiv1-servers.go b/lib/agent/apiv1-servers.go
new file mode 100644
index 0000000..72c3a1b
--- /dev/null
+++ b/lib/agent/apiv1-servers.go
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2018 "IoT.bzh"
+ * Author Sebastien Douheret <sebastien@iot.bzh>
+ *
+ * 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 agent
+
+import (
+	"net/http"
+	"time"
+
+	"gerrit.automotivelinux.org/gerrit/src/xds/xds-agent/lib/xaapiv1"
+	common "gerrit.automotivelinux.org/gerrit/src/xds/xds-common.git/golib"
+	"github.com/gin-gonic/gin"
+)
+
+// getServersList Return the list of XDS Servers
+func (s *APIService) getServersList(c *gin.Context) {
+	confMut.Lock()
+	defer confMut.Unlock()
+
+	svrList := []xaapiv1.ServerCfg{}
+	for _, svr := range s.xdsServers {
+		svrList = append(svrList, svr.GetConfig())
+	}
+
+	c.JSON(http.StatusOK, svrList)
+}
+
+// getServer Return info of a XDS Servers
+func (s *APIService) getServer(c *gin.Context) {
+
+	id := s.ParamGetIndex(c)
+	if id == "" {
+		common.APIError(c, "invalid parameter, id must be set")
+		return
+	}
+
+	confMut.Lock()
+	defer confMut.Unlock()
+
+	svr := s.GetXdsServerFromURLIndex(id)
+	if svr == nil {
+		common.APIError(c, "unknown id")
+		return
+	}
+
+	c.JSON(http.StatusOK, svr.GetConfig())
+}
+
+// reconnectServer Force reconnection of a XDS Server
+func (s *APIService) reconnectServer(c *gin.Context) {
+
+	id := s.ParamGetIndex(c)
+	if id == "" {
+		common.APIError(c, "invalid parameter, id must be set")
+		return
+	}
+
+	svr := s.GetXdsServerFromURLIndex(id)
+	if svr == nil {
+		common.APIError(c, "unknown id")
+		return
+	}
+
+	s.Log.Debugf("Reconnect XDS Server id %v", svr.ID)
+
+	if err := svr.Close(); err != nil {
+		common.APIError(c, err.Error())
+		return
+	}
+
+	time.Sleep(time.Millisecond * 100)
+
+	if err := svr.Connect(); err != nil {
+		common.APIError(c, err.Error())
+		return
+	}
+
+	c.JSON(http.StatusOK, svr.GetConfig())
+}