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proxy.go
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proxy.go
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// Copyright 2016 CodisLabs. All Rights Reserved.
// Licensed under the MIT (MIT-LICENSE.txt) license.
package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"github.com/CodisLabs/codis/pkg/models"
"github.com/CodisLabs/codis/pkg/proxy"
"github.com/CodisLabs/codis/pkg/utils"
"github.com/CodisLabs/codis/pkg/utils/log"
)
type cmdProxy struct {
addr string
auth string
}
func (t *cmdProxy) Main(d map[string]interface{}) {
t.addr = utils.ArgumentMust(d, "--proxy")
t.auth, _ = d["--auth"].(string)
switch {
default:
t.handleOverview(d)
case d["--start"].(bool):
t.handleStart(d)
case d["--shutdown"].(bool):
t.handleShutdown(d)
case d["--log-level"] != nil:
t.handleLogLevel(d)
case d["--fillslots"] != nil:
t.handleFillSlots(d)
case d["--reset-stats"].(bool):
t.handleResetStats(d)
case d["--forcegc"].(bool):
t.handleForceGC(d)
}
}
func (t *cmdProxy) newProxyClient(xauth bool) *proxy.ApiClient {
c := proxy.NewApiClient(t.addr)
if !xauth {
return c
}
log.Debugf("call rpc model to proxy %s", t.addr)
p, err := c.Model()
if err != nil {
log.PanicErrorf(err, "call rpc model to proxy %s failed", t.addr)
}
log.Debugf("call rpc model OK")
c.SetXAuth(p.ProductName, t.auth, p.Token)
log.Debugf("call rpc xping to proxy %s", t.addr)
if err := c.XPing(); err != nil {
log.PanicErrorf(err, "call rpc xping failed")
}
log.Debugf("call rpc xping OK")
return c
}
func (t *cmdProxy) handleOverview(d map[string]interface{}) {
c := t.newProxyClient(false)
log.Debugf("call rpc overview to proxy %s", t.addr)
o, err := c.Overview()
if err != nil {
log.PanicErrorf(err, "call rpc overview to proxy %s failed", t.addr)
}
log.Debugf("call rpc overview OK")
var cmd string
for _, s := range []string{"config", "model", "slots", "stats"} {
if d[s].(bool) {
cmd = s
}
}
var obj interface{}
switch cmd {
default:
obj = o
case "config":
obj = o.Config
case "model":
obj = o.Model
case "slots":
obj = o.Slots
case "stats":
obj = o.Stats
}
b, err := json.MarshalIndent(obj, "", " ")
if err != nil {
log.PanicErrorf(err, "json marshal failed")
}
fmt.Println(string(b))
}
func (t *cmdProxy) handleStart(d map[string]interface{}) {
c := t.newProxyClient(true)
log.Debugf("call rpc start to proxy %s", t.addr)
if err := c.Start(); err != nil {
log.PanicErrorf(err, "call rpc start to proxy %s failed", t.addr)
}
log.Debugf("call rpc start to proxy OK")
}
func (t *cmdProxy) handleLogLevel(d map[string]interface{}) {
c := t.newProxyClient(true)
s := utils.ArgumentMust(d, "--log-level")
var v log.LogLevel
if !v.ParseFromString(s) {
log.Panicf("option --log-level = %s", s)
}
log.Debugf("call rpc loglevel to proxy %s", t.addr)
if err := c.LogLevel(v); err != nil {
log.PanicErrorf(err, "call rpc loglevel to proxy %s failed", t.addr)
}
log.Debugf("call rpc loglevel OK")
}
func (t *cmdProxy) handleFillSlots(d map[string]interface{}) {
c := t.newProxyClient(true)
b, err := ioutil.ReadFile(utils.ArgumentMust(d, "--fillslots"))
if err != nil {
log.PanicErrorf(err, "load slots from file failed")
}
var slots []*models.Slot
if err := json.Unmarshal(b, &slots); err != nil {
log.PanicErrorf(err, "decode slots from json failed")
}
for _, m := range slots {
if m.Id < 0 || m.Id >= models.MaxSlotNum {
log.Panicf("invalid slot id = %d", m.Id)
}
}
if d["--locked"].(bool) {
for _, m := range slots {
m.Locked = true
}
}
log.Debugf("call rpc fillslots to proxy %s", t.addr)
if err := c.FillSlots(slots...); err != nil {
log.PanicErrorf(err, "call rpc fillslots to proxy %s failed", t.addr)
}
log.Debugf("call rpc fillslots OK")
}
func (t *cmdProxy) handleResetStats(d map[string]interface{}) {
c := t.newProxyClient(true)
log.Debugf("call rpc resetstats to proxy %s", t.addr)
if err := c.ResetStats(); err != nil {
log.PanicErrorf(err, "call rpc resetstats to proxy %s failed", t.addr)
}
log.Debugf("call rpc resetstats OK")
}
func (t *cmdProxy) handleForceGC(d map[string]interface{}) {
c := t.newProxyClient(true)
log.Debugf("call rpc forcegc to proxy %s", t.addr)
if err := c.ForceGC(); err != nil {
log.PanicErrorf(err, "call rpc forcegc to proxy %s failed", t.addr)
}
log.Debugf("call rpc forcegc OK")
}
func (t *cmdProxy) handleShutdown(d map[string]interface{}) {
c := t.newProxyClient(true)
log.Debugf("call rpc shutdown to proxy %s", t.addr)
if err := c.Shutdown(); err != nil {
log.PanicErrorf(err, "call rpc shutdown to proxy %s failed", t.addr)
}
log.Debugf("call rpc shutdown OK")
}