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parsecfg.go
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parsecfg.go
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package cluster
import (
"fmt"
"github.com/duanhf2012/origin/log"
"github.com/duanhf2012/origin/rpc"
jsoniter "github.com/json-iterator/go"
"io/ioutil"
"strings"
)
var json = jsoniter.ConfigCompatibleWithStandardLibrary
type NodeInfoList struct {
MasterDiscoveryNode []NodeInfo //用于服务发现Node
NodeList []NodeInfo
}
func (cls *Cluster) ReadClusterConfig(filepath string) (*NodeInfoList, error) {
c := &NodeInfoList{}
d, err := ioutil.ReadFile(filepath)
if err != nil {
return nil, err
}
err = json.Unmarshal(d, c)
if err != nil {
return nil, err
}
return c, nil
}
func (cls *Cluster) readServiceConfig(filepath string) (interface{}, map[string]interface{}, map[int]map[string]interface{}, error) {
c := map[string]interface{}{}
//读取配置
d, err := ioutil.ReadFile(filepath)
if err != nil {
return nil, nil, nil, err
}
err = json.Unmarshal(d, &c)
if err != nil {
return nil, nil, nil, err
}
GlobalCfg, ok := c["Global"]
serviceConfig := map[string]interface{}{}
serviceCfg, ok := c["Service"]
if ok == true {
serviceConfig = serviceCfg.(map[string]interface{})
}
mapNodeService := map[int]map[string]interface{}{}
nodeServiceCfg, ok := c["NodeService"]
if ok == true {
nodeServiceList := nodeServiceCfg.([]interface{})
for _, v := range nodeServiceList {
serviceCfg := v.(map[string]interface{})
nodeId, ok := serviceCfg["NodeId"]
if ok == false {
log.SFatal("NodeService list not find nodeId field")
}
mapNodeService[int(nodeId.(float64))] = serviceCfg
}
}
return GlobalCfg, serviceConfig, mapNodeService, nil
}
func (cls *Cluster) readLocalClusterConfig(nodeId int) ([]NodeInfo, []NodeInfo, error) {
var nodeInfoList []NodeInfo
var masterDiscoverNodeList []NodeInfo
clusterCfgPath := strings.TrimRight(configDir, "/") + "/cluster"
fileInfoList, err := ioutil.ReadDir(clusterCfgPath)
if err != nil {
return nil, nil, fmt.Errorf("Read dir %s is fail :%+v", clusterCfgPath, err)
}
//读取任何文件,只读符合格式的配置,目录下的文件可以自定义分文件
for _, f := range fileInfoList {
if f.IsDir() == false {
filePath := strings.TrimRight(strings.TrimRight(clusterCfgPath, "/"), "\\") + "/" + f.Name()
localNodeInfoList, err := cls.ReadClusterConfig(filePath)
if err != nil {
return nil, nil, fmt.Errorf("read file path %s is error:%+v", filePath, err)
}
masterDiscoverNodeList = append(masterDiscoverNodeList, localNodeInfoList.MasterDiscoveryNode...)
for _, nodeInfo := range localNodeInfoList.NodeList {
if nodeInfo.NodeId == nodeId || nodeId == 0 {
nodeInfoList = append(nodeInfoList, nodeInfo)
}
}
}
}
if nodeId != 0 && (len(nodeInfoList) != 1) {
return nil, nil, fmt.Errorf("%d configurations were found for the configuration with node ID %d!", len(nodeInfoList), nodeId)
}
for i, _ := range nodeInfoList {
for j, s := range nodeInfoList[i].ServiceList {
//私有结点不加入到Public服务列表中
if strings.HasPrefix(s, "_") == false && nodeInfoList[i].Private == false {
nodeInfoList[i].PublicServiceList = append(nodeInfoList[i].PublicServiceList, strings.TrimLeft(s, "_"))
} else {
nodeInfoList[i].ServiceList[j] = strings.TrimLeft(s, "_")
}
}
}
return masterDiscoverNodeList, nodeInfoList, nil
}
func (cls *Cluster) readLocalService(localNodeId int) error {
clusterCfgPath := strings.TrimRight(configDir, "/") + "/cluster"
fileInfoList, err := ioutil.ReadDir(clusterCfgPath)
if err != nil {
return fmt.Errorf("Read dir %s is fail :%+v", clusterCfgPath, err)
}
//读取任何文件,只读符合格式的配置,目录下的文件可以自定义分文件
for _, f := range fileInfoList {
if f.IsDir() == false {
filePath := strings.TrimRight(strings.TrimRight(clusterCfgPath, "/"), "\\") + "/" + f.Name()
currGlobalCfg, serviceConfig, mapNodeService, err := cls.readServiceConfig(filePath)
if err != nil {
continue
}
if currGlobalCfg != nil {
cls.globalCfg = currGlobalCfg
}
for _, s := range cls.localNodeInfo.ServiceList {
for {
//取公共服务配置
pubCfg, ok := serviceConfig[s]
if ok == true {
cls.localServiceCfg[s] = pubCfg
}
//如果结点也配置了该服务,则覆盖之
nodeService, ok := mapNodeService[localNodeId]
if ok == false {
break
}
sCfg, ok := nodeService[s]
if ok == false {
break
}
cls.localServiceCfg[s] = sCfg
break
}
}
}
}
return nil
}
func (cls *Cluster) parseLocalCfg() {
cls.mapIdNode[cls.localNodeInfo.NodeId] = cls.localNodeInfo
for _, sName := range cls.localNodeInfo.ServiceList {
if _, ok := cls.mapServiceNode[sName]; ok == false {
cls.mapServiceNode[sName] = make(map[int]struct{})
}
cls.mapServiceNode[sName][cls.localNodeInfo.NodeId] = struct{}{}
}
}
func (cls *Cluster) checkDiscoveryNodeList(discoverMasterNode []NodeInfo) bool {
for i := 0; i < len(discoverMasterNode)-1; i++ {
for j := i + 1; j < len(discoverMasterNode); j++ {
if discoverMasterNode[i].NodeId == discoverMasterNode[j].NodeId ||
discoverMasterNode[i].ListenAddr == discoverMasterNode[j].ListenAddr {
return false
}
}
}
return true
}
func (cls *Cluster) InitCfg(localNodeId int) error {
cls.localServiceCfg = map[string]interface{}{}
cls.mapRpc = map[int]NodeRpcInfo{}
cls.mapIdNode = map[int]NodeInfo{}
cls.mapServiceNode = map[string]map[int]struct{}{}
//加载本地结点的NodeList配置
discoveryNode, nodeInfoList, err := cls.readLocalClusterConfig(localNodeId)
if err != nil {
return err
}
cls.localNodeInfo = nodeInfoList[0]
if cls.checkDiscoveryNodeList(discoveryNode) == false {
return fmt.Errorf("DiscoveryNode config is error!")
}
cls.masterDiscoveryNodeList = discoveryNode
//读取本地服务配置
err = cls.readLocalService(localNodeId)
if err != nil {
return err
}
//本地配置服务加到全局map信息中
cls.parseLocalCfg()
return nil
}
func (cls *Cluster) IsConfigService(serviceName string) bool {
cls.locker.RLock()
defer cls.locker.RUnlock()
mapNode, ok := cls.mapServiceNode[serviceName]
if ok == false {
return false
}
_, ok = mapNode[cls.localNodeInfo.NodeId]
return ok
}
func (cls *Cluster) GetNodeIdByService(serviceName string, rpcClientList []*rpc.Client, bAll bool) (error, int) {
cls.locker.RLock()
defer cls.locker.RUnlock()
mapNodeId, ok := cls.mapServiceNode[serviceName]
count := 0
if ok == true {
for nodeId, _ := range mapNodeId {
pClient := GetCluster().getRpcClient(nodeId)
if pClient == nil || (bAll == false && pClient.IsConnected() == false) {
continue
}
rpcClientList[count] = pClient
count++
if count >= cap(rpcClientList) {
break
}
}
}
return nil, count
}
func (cls *Cluster) GetServiceCfg(serviceName string) interface{} {
serviceCfg, ok := cls.localServiceCfg[serviceName]
if ok == false {
return nil
}
return serviceCfg
}