client/http: add more interface for BR/lightning (#7602)

ref #7300

Signed-off-by: lance6716 <lance6716@gmail.com>

Co-authored-by: ti-chi-bot[bot] <108142056+ti-chi-bot[bot]@users.noreply.github.com>

client/http/interface.go

@@ -49,6 +49,7 @@ type Client interface {
 	GetScheduleConfig(context.Context) (map[string]interface{}, error)
 	SetScheduleConfig(context.Context, map[string]interface{}) error
 	GetClusterVersion(context.Context) (string, error)
+	GetReplicateConfig(context.Context) (map[string]interface{}, error)
 	/* Scheduler-related interfaces */
 	GetSchedulers(context.Context) ([]string, error)
 	CreateScheduler(ctx context.Context, name string, storeID uint64) error
@@ -57,6 +58,7 @@ type Client interface {
 	GetAllPlacementRuleBundles(context.Context) ([]*GroupBundle, error)
 	GetPlacementRuleBundleByGroup(context.Context, string) (*GroupBundle, error)
 	GetPlacementRulesByGroup(context.Context, string) ([]*Rule, error)
+	GetPlacementRule(context.Context, string, string) (*Rule, error)
 	SetPlacementRule(context.Context, *Rule) error
 	SetPlacementRuleInBatch(context.Context, []*RuleOp) error
 	SetPlacementRuleBundles(context.Context, []*GroupBundle, bool) error
@@ -359,6 +361,20 @@ func (c *client) GetClusterVersion(ctx context.Context) (string, error) {
 	return version, nil
 }
 
+// GetReplicateConfig gets the replication configurations.
+func (c *client) GetReplicateConfig(ctx context.Context) (map[string]interface{}, error) {
+	var config map[string]interface{}
+	err := c.request(ctx, newRequestInfo().
+		WithName(getReplicateConfigName).
+		WithURI(ReplicateConfig).
+		WithMethod(http.MethodGet).
+		WithResp(&config))
+	if err != nil {
+		return nil, err
+	}
+	return config, nil
+}
+
 // GetAllPlacementRuleBundles gets all placement rules bundles.
 func (c *client) GetAllPlacementRuleBundles(ctx context.Context) ([]*GroupBundle, error) {
 	var bundles []*GroupBundle
@@ -401,6 +417,20 @@ func (c *client) GetPlacementRulesByGroup(ctx context.Context, group string) ([]
 	return rules, nil
 }
 
+// GetPlacementRule gets the placement rule by group and ID.
+func (c *client) GetPlacementRule(ctx context.Context, group, id string) (*Rule, error) {
+	var rule Rule
+	err := c.request(ctx, newRequestInfo().
+		WithName(getPlacementRuleName).
+		WithURI(PlacementRuleByGroupAndID(group, id)).
+		WithMethod(http.MethodGet).
+		WithResp(&rule))
+	if err != nil {
+		return nil, err
+	}
+	return &rule, nil
+}
+
 // SetPlacementRule sets the placement rule.
 func (c *client) SetPlacementRule(ctx context.Context, rule *Rule) error {
 	ruleJSON, err := json.Marshal(rule)

client/http/request_info.go

@@ -37,12 +37,14 @@ const (
 	getScheduleConfigName                   = "GetScheduleConfig"
 	setScheduleConfigName                   = "SetScheduleConfig"
 	getClusterVersionName                   = "GetClusterVersion"
+	getReplicateConfigName                  = "GetReplicateConfig"
 	getSchedulersName                       = "GetSchedulers"
 	createSchedulerName                     = "CreateScheduler"
 	setSchedulerDelayName                   = "SetSchedulerDelay"
 	getAllPlacementRuleBundlesName          = "GetAllPlacementRuleBundles"
 	getPlacementRuleBundleByGroupName       = "GetPlacementRuleBundleByGroup"
 	getPlacementRulesByGroupName            = "GetPlacementRulesByGroup"
+	getPlacementRuleName                    = "GetPlacementRule"
 	setPlacementRuleName                    = "SetPlacementRule"
 	setPlacementRuleInBatchName             = "SetPlacementRuleInBatch"
 	setPlacementRuleBundlesName             = "SetPlacementRuleBundles"

tests/integrations/client/http_client_test.go

@@ -83,6 +83,9 @@ func (suite *httpClientTestSuite) TearDownSuite() {
 
 func (suite *httpClientTestSuite) TestMeta() {
 	re := suite.Require()
+	replicateConfig, err := suite.client.GetReplicateConfig(suite.ctx)
+	re.NoError(err)
+	re.Equal(3.0, replicateConfig["max-replicas"])
 	region, err := suite.client.GetRegionByID(suite.ctx, 10)
 	re.NoError(err)
 	re.Equal(int64(10), region.ID)
@@ -270,6 +273,17 @@ func (suite *httpClientTestSuite) checkRule(
 	re *require.Assertions,
 	rule *pd.Rule, totalRuleCount int, exist bool,
 ) {
+	if exist {
+		got, err := suite.client.GetPlacementRule(suite.ctx, rule.GroupID, rule.ID)
+		re.NoError(err)
+		// skip comparison of the generated field
+		got.StartKeyHex = rule.StartKeyHex
+		got.EndKeyHex = rule.EndKeyHex
+		re.Equal(rule, got)
+	} else {
+		_, err := suite.client.GetPlacementRule(suite.ctx, rule.GroupID, rule.ID)
+		re.ErrorContains(err, http.StatusText(http.StatusNotFound))
+	}
 	// Check through the `GetPlacementRulesByGroup` API.
 	rules, err := suite.client.GetPlacementRulesByGroup(suite.ctx, rule.GroupID)
 	re.NoError(err)