/
server.go
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/
server.go
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/*
* 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 server
import (
"strings"
"sync"
"time"
"github.com/apolloconfig/agollo/v4/env/config"
)
// ip -> server
var (
ipMap map[string]*Info
serverLock sync.Mutex
//next try connect period - 60 second
nextTryConnectPeriod int64 = 30
)
func init() {
ipMap = make(map[string]*Info)
}
type Info struct {
//real servers ip
serverMap map[string]*config.ServerInfo
nextTryConnTime int64
}
//GetServersLen 获取服务器数组
func GetServers(configIp string) map[string]*config.ServerInfo {
serverLock.Lock()
defer serverLock.Unlock()
if ipMap[configIp] == nil {
return nil
}
return ipMap[configIp].serverMap
}
//GetServersLen 获取服务器数组长度
func GetServersLen(configIp string) int {
serverLock.Lock()
defer serverLock.Unlock()
s := ipMap[configIp]
if s == nil || len(s.serverMap) == 0 {
return 0
}
return len(s.serverMap)
}
func SetServers(configIp string, serverMap map[string]*config.ServerInfo) {
serverLock.Lock()
defer serverLock.Unlock()
ipMap[configIp] = &Info{
serverMap: serverMap,
}
}
//SetDownNode 设置失效节点
func SetDownNode(configService string, serverHost string) {
serverLock.Lock()
defer serverLock.Unlock()
s := ipMap[configService]
if serverHost == "" {
return
}
if s == nil || len(s.serverMap) == 0 {
// init server map
ipMap[configService] = &Info{
serverMap: map[string]*config.ServerInfo{
serverHost: {
HomepageURL: serverHost,
},
},
}
s = ipMap[configService]
}
if serverHost == configService {
s.nextTryConnTime = time.Now().Unix() + nextTryConnectPeriod
}
for k, server := range s.serverMap {
// if some node has down then select next node
if strings.Index(k, serverHost) > -1 {
server.IsDown = true
}
}
}
//IsConnectDirectly is connect by ip directly
//false : yes
//true : no
func IsConnectDirectly(configIp string) bool {
serverLock.Lock()
defer serverLock.Unlock()
s := ipMap[configIp]
if s == nil || len(s.serverMap) == 0 {
return false
}
if s.nextTryConnTime >= 0 && s.nextTryConnTime > time.Now().Unix() {
return true
}
return false
}
//SetNextTryConnTime if this connect is fail will set this time
func SetNextTryConnTime(configIp string, nextPeriod int64) {
serverLock.Lock()
defer serverLock.Unlock()
s := ipMap[configIp]
if s == nil || len(s.serverMap) == 0 {
s = &Info{
serverMap: nil,
nextTryConnTime: 0,
}
ipMap[configIp] = s
}
tmp := nextPeriod
if tmp == 0 {
tmp = nextTryConnectPeriod
}
s.nextTryConnTime = time.Now().Unix() + tmp
}