feat: add group api for UI module #344 (#373)

* add: missing interfaces in proto files and discovery files

* feat: group api in file db_groups.go (#344)

* style: add license header and add tool: imports-formatter

* style: fix import

pkg/admin/router/db_groups.go

@@ -0,0 +1,110 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 router
+
+import (
+	"context"
+	"net/http"
+)
+
+import (
+	"github.com/gin-gonic/gin"
+)
+
+import (
+	"github.com/arana-db/arana/pkg/admin"
+	"github.com/arana-db/arana/pkg/boot"
+)
+
+func init() {
+	admin.Register(func(router gin.IRoutes) {
+		router.POST("/tenants/:tenant/groups", CreateGroup)
+		router.GET("/tenants/:tenant/groups", ListGroups)
+		router.GET("/tenants/:tenant/groups/:group", GetGroup)
+		router.PUT("/tenants/:tenant/groups/:group", UpdateGroup)
+		router.DELETE("/tenants/:tenant/groups/:group", RemoveGroup)
+	})
+}
+
+func CreateGroup(c *gin.Context) {
+	service := admin.GetService(c)
+	tenantName := c.Param("tenant")
+	var group *boot.GroupBody
+	if err := c.ShouldBindJSON(&group); err == nil {
+		err := service.UpsertGroup(context.Background(), tenantName, "", "", group)
+		if err != nil {
+			_ = c.Error(err)
+			return
+		}
+		c.JSON(http.StatusOK, nil)
+	} else {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+	}
+}
+
+func ListGroups(c *gin.Context) {
+	service := admin.GetService(c)
+	tenantName := c.Param("tenant")
+	groups, err := service.ListGroups(context.Background(), tenantName)
+	if err != nil {
+		_ = c.Error(err)
+		return
+	}
+	c.JSON(http.StatusOK, groups)
+}
+
+func GetGroup(c *gin.Context) {
+	service := admin.GetService(c)
+	tenant := c.Param("tenant")
+	group := c.Param("group")
+	data, err := service.GetGroup(context.Background(), tenant, "", group)
+	if err != nil {
+		_ = c.Error(err)
+		return
+	}
+	c.JSON(http.StatusOK, data)
+}
+
+func UpdateGroup(c *gin.Context) {
+	service := admin.GetService(c)
+	tenant := c.Param("tenant")
+	group := c.Param("group")
+	var groupBody *boot.GroupBody
+	if err := c.ShouldBindJSON(&groupBody); err == nil {
+		err := service.UpsertGroup(context.Background(), tenant, "", group, groupBody)
+		if err != nil {
+			_ = c.Error(err)
+			return
+		}
+		c.JSON(http.StatusOK, nil)
+	} else {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+	}
+}
+
+func RemoveGroup(c *gin.Context) {
+	service := admin.GetService(c)
+	tenant, group := c.Param("tenant"), c.Param("group")
+
+	err := service.RemoveGroup(context.Background(), tenant, "", group)
+	if err != nil {
+		_ = c.Error(err)
+		return
+	}
+	c.JSON(http.StatusOK, nil)
+}

pkg/boot/discovery.go

@@ -192,6 +192,15 @@ func (fp *discovery) GetDataSourceCluster(ctx context.Context, cluster string) (
 	return dataSourceCluster, nil
 }
 
+func (fp *discovery) GetGroup(ctx context.Context, tenant, cluster, group string) (*config.Group, error) {
+	exist, ok := fp.loadGroup(cluster, group)
+	if !ok {
+		return nil, nil
+	}
+
+	return exist, nil
+}
+
 func (fp *discovery) GetCluster(ctx context.Context, tenant, cluster string) (*Cluster, error) {
 	exist, ok := fp.loadCluster(cluster)
 	if !ok {

pkg/boot/proto.go

@@ -83,6 +83,9 @@ type ConfigProvider interface {
 	// GetDataSourceCluster returns the dataSourceCluster object
 	GetDataSourceCluster(ctx context.Context, cluster string) (*config.DataSourceCluster, error)
 
+	// GetGroup returns the cluster info
+	GetGroup(ctx context.Context, tenant, cluster, group string) (*config.Group, error)
+
 	// GetCluster returns the cluster info
 	GetCluster(ctx context.Context, tenant, cluster string) (*Cluster, error)