refactor handler

Signed-off-by: lhy1024 <[email protected]>
lhy1024 · Oct 12, 2023 · 5b26cf4 · 5b26cf4
1 parent 4959d2b
commit 5b26cf4
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Showing 7 changed files with 290 additions and 112 deletions.
diff --git a/errors.toml b/errors.toml
@@ -541,6 +541,11 @@ error = '''
 build rule list failed, %s
 '''
 
+["PD:placement:ErrKeyFormat"]
+error = '''
+key should be in hex format
+'''
+
 ["PD:placement:ErrLoadRule"]
 error = '''
 load rule failed
@@ -551,6 +556,11 @@ error = '''
 load rule group failed
 '''
 
+["PD:placement:ErrPlacementDisabled"]
+error = '''
+placement rules feature is disabled
+'''
+
 ["PD:placement:ErrRuleContent"]
 error = '''
 invalid rule content, %s
@@ -606,6 +616,11 @@ error = '''
 region %v has abnormal peer
 '''
 
+["PD:region:ErrRegionInvalidID"]
+error = '''
+invalid region id
+'''
+
 ["PD:region:ErrRegionNotAdjacent"]
 error = '''
 two regions are not adjacent

diff --git a/pkg/errs/errno.go b/pkg/errs/errno.go
@@ -102,6 +102,8 @@ var (
 
 // region errors
 var (
+	// ErrRegionInvalidID is error info for region id invalid.
+	ErrRegionInvalidID = errors.Normalize("invalid region id", errors.RFCCodeText("PD:region:ErrRegionInvalidID"))
 	// ErrRegionNotAdjacent is error info for region not adjacent.
 	ErrRegionNotAdjacent = errors.Normalize("two regions are not adjacent", errors.RFCCodeText("PD:region:ErrRegionNotAdjacent"))
 	// ErrRegionNotFound is error info for region not found.
@@ -153,10 +155,12 @@ var (
 
 // placement errors
 var (
-	ErrRuleContent   = errors.Normalize("invalid rule content, %s", errors.RFCCodeText("PD:placement:ErrRuleContent"))
-	ErrLoadRule      = errors.Normalize("load rule failed", errors.RFCCodeText("PD:placement:ErrLoadRule"))
-	ErrLoadRuleGroup = errors.Normalize("load rule group failed", errors.RFCCodeText("PD:placement:ErrLoadRuleGroup"))
-	ErrBuildRuleList = errors.Normalize("build rule list failed, %s", errors.RFCCodeText("PD:placement:ErrBuildRuleList"))
+	ErrRuleContent       = errors.Normalize("invalid rule content, %s", errors.RFCCodeText("PD:placement:ErrRuleContent"))
+	ErrLoadRule          = errors.Normalize("load rule failed", errors.RFCCodeText("PD:placement:ErrLoadRule"))
+	ErrLoadRuleGroup     = errors.Normalize("load rule group failed", errors.RFCCodeText("PD:placement:ErrLoadRuleGroup"))
+	ErrBuildRuleList     = errors.Normalize("build rule list failed, %s", errors.RFCCodeText("PD:placement:ErrBuildRuleList"))
+	ErrPlacementDisabled = errors.Normalize("placement rules feature is disabled", errors.RFCCodeText("PD:placement:ErrPlacementDisabled"))
+	ErrKeyFormat         = errors.Normalize("key should be in hex format", errors.RFCCodeText("PD:placement:ErrKeyFormat"))
 )
 
 // region label errors

diff --git a/pkg/mcs/scheduling/server/apis/v1/api.go b/pkg/mcs/scheduling/server/apis/v1/api.go
@@ -150,6 +150,16 @@ func (s *Service) RegisterHotspotRouter() {
 	router.GET("/buckets", getHotBuckets)
 }
 
+// RegisterConfigRouter registers the router of the config handler.
+func (s *Service) RegisterConfigRouter() {
+	// router := s.root.Group("config")
+	// router.GET("/rule", getHotBuckets)
+	// router.GET("/rules", getHotBuckets)
+	// router.GET("/rule_group", getHotBuckets)
+	// router.GET("/rule_groups", getHotBuckets)
+	// router.GET("/placement-rule", getHotBuckets)
+}
+
 // RegisterOperatorsRouter registers the router of the operators handler.
 func (s *Service) RegisterOperatorsRouter() {
 	router := s.root.Group("operators")

diff --git a/pkg/schedule/handler/handler.go b/pkg/schedule/handler/handler.go
@@ -18,6 +18,7 @@ import (
 	"bytes"
 	"encoding/hex"
 	"net/http"
+	"strconv"
 	"strings"
 	"time"
 
@@ -1040,3 +1041,45 @@ func (h *Handler) GetHotBuckets(regionIDs ...uint64) (HotBucketsResponse, error)
 	}
 	return ret, nil
 }
+
+// GetRuleManager returns the rule manager.
+func (h *Handler) GetRuleManager() (*placement.RuleManager, error) {
+	c := h.GetCluster()
+	if c == nil {
+		return nil, errs.ErrNotBootstrapped
+	}
+	if !c.GetSharedConfig().IsPlacementRulesEnabled() {
+		return nil, errs.ErrPlacementDisabled
+	}
+	return c.GetRuleManager(), nil
+}
+
+// PreCheckForRegion checks if the region is valid.
+func (h *Handler) PreCheckForRegion(regionStr string) (*core.RegionInfo, int, error) {
+	c := h.GetCluster()
+	if c == nil {
+		return nil, http.StatusInternalServerError, errs.ErrNotBootstrapped.GenWithStackByArgs()
+	}
+	regionID, err := strconv.ParseUint(regionStr, 10, 64)
+	if err != nil {
+		return nil, http.StatusBadRequest, errs.ErrRegionInvalidID.FastGenByArgs()
+	}
+	region := c.GetRegion(regionID)
+	if region == nil {
+		return nil, http.StatusNotFound, errs.ErrRegionNotFound.FastGenByArgs(regionID)
+	}
+	return region, http.StatusOK, nil
+}
+
+// CheckRegionPlacementRule checks if the region matches the placement rules.
+func (h *Handler) CheckRegionPlacementRule(region *core.RegionInfo) (*placement.RegionFit, error) {
+	c := h.GetCluster()
+	if c == nil {
+		return nil, errs.ErrNotBootstrapped.GenWithStackByArgs()
+	}
+	manager, err := h.GetRuleManager()
+	if err != nil {
+		return nil, err
+	}
+	return manager.FitRegion(c, region), nil
+}