| /* |
| * 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 client |
| |
| import ( |
| "context" |
| "encoding/json" |
| "io" |
| "net/http" |
| |
| "github.com/apache/servicecomb-service-center/pkg/dump" |
| "github.com/apache/servicecomb-service-center/pkg/util" |
| "github.com/apache/servicecomb-service-center/version" |
| "github.com/go-chassis/cari/discovery" |
| "github.com/go-chassis/cari/pkg/errsvc" |
| "github.com/little-cui/etcdadpt" |
| ) |
| |
| const ( |
| apiVersionURL = "/version" |
| apiDumpURL = "/v4/default/admin/dump" |
| apiClustersURL = "/v4/default/admin/clusters" |
| apiHealthURL = "/v4/default/registry/health" |
| |
| QueryGlobal util.CtxKey = "global" |
| ) |
| |
| func (c *Client) toError(body []byte) *errsvc.Error { |
| message := new(errsvc.Error) |
| err := json.Unmarshal(body, message) |
| if err != nil { |
| return discovery.NewError(discovery.ErrInternal, util.BytesToStringWithNoCopy(body)) |
| } |
| return message |
| } |
| |
| func (c *Client) parseQuery(ctx context.Context) (q string) { |
| switch { |
| case ctx.Value(QueryGlobal) == "1": |
| q += "global=true" |
| default: |
| q += "global=false" |
| } |
| return |
| } |
| |
| func (c *Client) GetScVersion(ctx context.Context) (*version.Set, *errsvc.Error) { |
| resp, err := c.RestDoWithContext(ctx, http.MethodGet, apiVersionURL, c.CommonHeaders(ctx), nil) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| defer resp.Body.Close() |
| |
| body, err := io.ReadAll(resp.Body) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| if resp.StatusCode != http.StatusOK { |
| return nil, c.toError(body) |
| } |
| |
| v := &version.Set{} |
| err = json.Unmarshal(body, v) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| return v, nil |
| } |
| |
| func (c *Client) GetScCache(ctx context.Context) (*dump.Cache, *errsvc.Error) { |
| headers := c.CommonHeaders(ctx) |
| // only default domain has admin permission |
| headers.Set("X-Domain-Name", "default") |
| resp, err := c.RestDoWithContext(ctx, http.MethodGet, apiDumpURL, headers, nil) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| defer resp.Body.Close() |
| |
| body, err := io.ReadAll(resp.Body) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| if resp.StatusCode != http.StatusOK { |
| return nil, c.toError(body) |
| } |
| |
| dump := &dump.Response{} |
| err = json.Unmarshal(body, dump) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| return dump.Cache, nil |
| } |
| |
| func (c *Client) GetClusters(ctx context.Context) (etcdadpt.Clusters, *errsvc.Error) { |
| headers := c.CommonHeaders(ctx) |
| // only default domain has admin permission |
| headers.Set("X-Domain-Name", "default") |
| resp, err := c.RestDoWithContext(ctx, http.MethodGet, apiClustersURL, headers, nil) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| defer resp.Body.Close() |
| |
| body, err := io.ReadAll(resp.Body) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| if resp.StatusCode != http.StatusOK { |
| return nil, c.toError(body) |
| } |
| |
| clusters := &dump.ClustersResponse{} |
| err = json.Unmarshal(body, clusters) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| return clusters.Clusters, nil |
| } |
| |
| func (c *Client) HealthCheck(ctx context.Context) *errsvc.Error { |
| headers := c.CommonHeaders(ctx) |
| // only default domain has admin permission |
| headers.Set("X-Domain-Name", "default") |
| resp, err := c.RestDoWithContext(ctx, http.MethodGet, apiHealthURL, headers, nil) |
| if err != nil { |
| return discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| defer resp.Body.Close() |
| |
| body, err := io.ReadAll(resp.Body) |
| if err != nil { |
| return discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| if resp.StatusCode != http.StatusOK { |
| return c.toError(body) |
| } |
| return nil |
| } |