change topology mapping definition, improve spelling

weed/server/master_server_handlers_admin.go

@@ -48,7 +48,7 @@ func (ms *MasterServer) collectionDeleteHandler(w http.ResponseWriter, r *http.R
 func (ms *MasterServer) dirStatusHandler(w http.ResponseWriter, r *http.Request) {
 	m := make(map[string]interface{})
 	m["Version"] = util.Version()
-	m["Topology"] = ms.Topo.ToMap()
+	m["Topology"] = ms.Topo.ToInfo()
 	writeJsonQuiet(w, r, http.StatusOK, m)
 }
 

weed/server/master_server_handlers_ui.go

@@ -26,7 +26,7 @@ func (ms *MasterServer) uiStatusHandler(w http.ResponseWriter, r *http.Request)
 			VolumeSizeLimitMB uint32
 		}{
 			util.Version(),
-			ms.Topo.ToMap(),
+			ms.Topo.ToInfo(),
 			ms.Topo.RaftServer,
 			infos,
 			serverStats,
@@ -43,7 +43,7 @@ func (ms *MasterServer) uiStatusHandler(w http.ResponseWriter, r *http.Request)
 			VolumeSizeLimitMB uint32
 		}{
 			util.Version(),
-			ms.Topo.ToMap(),
+			ms.Topo.ToInfo(),
 			ms.Topo.HashicorpRaft,
 			infos,
 			serverStats,

weed/topology/data_center.go

@@ -31,25 +31,24 @@ func (dc *DataCenter) GetOrCreateRack(rackName string) *Rack {
 	return rack
 }
 
-type DataCenterMap struct {
+type DataCenterInfo struct {
 	Id    NodeId     `json:"Id"`
-	Racks []RackMap `json:"Racks"`
+	Racks []RackInfo `json:"Racks"`
 }
 
-func (dc *DataCenter) ToMap() DataCenterMap {
-	m := DataCenterMap{}
-	m.Id = dc.Id()
-	var racks []RackMap
+func (dc *DataCenter) ToInfo() (info DataCenterInfo) {
+	info.Id = dc.Id()
+	var racks []RackInfo
 	for _, c := range dc.Children() {
 		rack := c.(*Rack)
-		racks = append(racks, rack.ToMap())
+		racks = append(racks, rack.ToInfo())
 	}
 
-	slices.SortFunc(racks, func(a, b RackMap) bool {
+	slices.SortFunc(racks, func(a, b RackInfo) bool {
 		return a.Id < b.Id
 	})
-	m.Racks = racks
-	return m
+	info.Racks = racks
+	return
 }
 
 func (dc *DataCenter) ToDataCenterInfo() *master_pb.DataCenterInfo {

weed/topology/data_node.go

@@ -217,7 +217,7 @@ func (dn *DataNode) ServerAddress() pb.ServerAddress {
 	return pb.NewServerAddress(dn.Ip, dn.Port, dn.GrpcPort)
 }
 
-type DataNodeMap struct {
+type DataNodeInfo struct {
 	Url       string `json:"Url"`
 	PublicUrl string `json:"PublicUrl"`
 	Volumes   int64  `json:"Volumes"`
@@ -226,10 +226,9 @@ type DataNodeMap struct {
 	VolumeIds string `json:"VolumeIds"`
 }
 
-func (dn *DataNode) ToMap() DataNodeMap {
-	ret := DataNodeMap{}
-	ret.Url = dn.Url()
-	ret.PublicUrl = dn.PublicUrl
+func (dn *DataNode) ToInfo() (info DataNodeInfo) {
+	info.Url = dn.Url()
+	info.PublicUrl = dn.PublicUrl
 
 	// aggregated volume info
 	var volumeCount, ecShardCount, maxVolumeCount int64
@@ -245,12 +244,12 @@ func (dn *DataNode) ToMap() DataNodeMap {
 		volumeIds += " " + d.GetVolumeIds()
 	}
 
-	ret.Volumes = volumeCount
-	ret.EcShards = ecShardCount
-	ret.Max = maxVolumeCount
-	ret.VolumeIds = volumeIds
+	info.Volumes = volumeCount
+	info.EcShards = ecShardCount
+	info.Max = maxVolumeCount
+	info.VolumeIds = volumeIds
 
-	return ret
+	return
 }
 
 func (dn *DataNode) ToDataNodeInfo() *master_pb.DataNodeInfo {

weed/topology/rack.go

@@ -54,26 +54,25 @@ func (r *Rack) GetOrCreateDataNode(ip string, port int, grpcPort int, publicUrl
 	return dn
 }
 
-type RackMap struct {
+type RackInfo struct {
 	Id        NodeId         `json:"Id"`
-	DataNodes []DataNodeMap `json:"DataNodes"`
+	DataNodes []DataNodeInfo `json:"DataNodes"`
 }
 
-func (r *Rack) ToMap() RackMap {
-	m := RackMap{}
-	m.Id = r.Id()
-	var dns []DataNodeMap
+func (r *Rack) ToInfo() (info RackInfo) {
+	info.Id = r.Id()
+	var dns []DataNodeInfo
 	for _, c := range r.Children() {
 		dn := c.(*DataNode)
-		dns = append(dns, dn.ToMap())
+		dns = append(dns, dn.ToInfo())
 	}
 
-	slices.SortFunc(dns, func(a, b DataNodeMap) bool {
+	slices.SortFunc(dns, func(a, b DataNodeInfo) bool {
 		return a.Url < b.Url
 	})
 
-	m.DataNodes = dns
-	return m
+	info.DataNodes = dns
+	return
 }
 
 func (r *Rack) ToRackInfo() *master_pb.RackInfo {

weed/topology/topology_map.go → weed/topology/topology_info.go

@@ -5,41 +5,40 @@ import (
 	"golang.org/x/exp/slices"
 )
 
-type TopologyMap struct {
+type TopologyInfo struct {
 	Max         int64              `json:"Max"`
 	Free        int64              `json:"Free"`
-	DataCenters []DataCenterMap `json:"DataCenters"`
-	Layouts     []interface{}   `json:"Layouts"`
+	DataCenters []DataCenterInfo   `json:"DataCenters"`
+	Layouts     []VolumeLayoutInfo `json:"Layouts"`
 }
 
-func (t *Topology) ToMap() interface{} {
-	m := TopologyMap{}
-	m.Max = t.diskUsages.GetMaxVolumeCount()
-	m.Free = t.diskUsages.FreeSpace()
-	var dcs []DataCenterMap
+func (t *Topology) ToInfo() (info TopologyInfo) {
+	info.Max = t.diskUsages.GetMaxVolumeCount()
+	info.Free = t.diskUsages.FreeSpace()
+	var dcs []DataCenterInfo
 	for _, c := range t.Children() {
 		dc := c.(*DataCenter)
-		dcs = append(dcs, dc.ToMap())
+		dcs = append(dcs, dc.ToInfo())
 	}
 
-	slices.SortFunc(dcs, func(a, b DataCenterMap) bool {
+	slices.SortFunc(dcs, func(a, b DataCenterInfo) bool {
 		return a.Id < b.Id
 	})
 
-	m.DataCenters = dcs
-	var layouts []interface{}
+	info.DataCenters = dcs
+	var layouts []VolumeLayoutInfo
 	for _, col := range t.collectionMap.Items() {
 		c := col.(*Collection)
 		for _, layout := range c.storageType2VolumeLayout.Items() {
 			if layout != nil {
-				tmp := layout.(*VolumeLayout).ToMap()
-				tmp["collection"] = c.Name
+				tmp := layout.(*VolumeLayout).ToInfo()
+				tmp.Collection = c.Name
 				layouts = append(layouts, tmp)
 			}
 		}
 	}
-	m.Layouts = layouts
-	return m
+	info.Layouts = layouts
+	return
 }
 
 func (t *Topology) ToVolumeMap() interface{} {

weed/topology/volume_layout.go

@@ -473,13 +473,19 @@ func (vl *VolumeLayout) SetVolumeCrowded(vid needle.VolumeId) {
 	}
 }
 
-func (vl *VolumeLayout) ToMap() map[string]interface{} {
-	m := make(map[string]interface{})
-	m["replication"] = vl.rp.String()
-	m["ttl"] = vl.ttl.String()
-	m["writables"] = vl.writables
+type VolumeLayoutInfo struct {
+	Replication string            `json:"replication"`
+	TTL         string            `json:"ttl"`
+	Writables   []needle.VolumeId `json:"writables"`
+	Collection  string            `json:"collection"`
+}
+
+func (vl *VolumeLayout) ToInfo() (info VolumeLayoutInfo) {
+	info.Replication = vl.rp.String()
+	info.TTL = vl.ttl.String()
+	info.Writables = vl.writables
 	//m["locations"] = vl.vid2location
-	return m
+	return
 }
 
 func (vl *VolumeLayout) Stats() *VolumeLayoutStats {