/
config.go
208 lines (177 loc) · 4.76 KB
/
config.go
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package ocron
import (
"fmt"
"github.com/xqk/ox/pkg/olog"
"runtime"
"time"
"go.etcd.io/etcd/client/v3/concurrency"
"github.com/xqk/ox/pkg/client/etcdv3"
"github.com/xqk/ox/pkg/ecode"
"github.com/robfig/cron/v3"
"go.uber.org/zap"
"github.com/xqk/ox/pkg/conf"
"github.com/xqk/ox/pkg/metric"
)
// StdConfig ...
func StdConfig(name string) Config {
return RawConfig("ox.cron." + name)
}
// RawConfig ...
func RawConfig(key string) Config {
var config = DefaultConfig()
if err := conf.UnmarshalKey(key, &config); err != nil {
olog.Panic("unmarshal", olog.String("key", key))
}
if config.DistributedTask {
config.Config = etcdv3.RawConfig(key)
}
return config
}
// DefaultConfig ...
func DefaultConfig() Config {
return Config{
logger: olog.OxLogger,
wrappers: []JobWrapper{},
WithSeconds: false,
ImmediatelyRun: false,
ConcurrentDelay: -1, // skip
}
}
// Config ...
type Config struct {
WithSeconds bool
ConcurrentDelay int
ImmediatelyRun bool
wrappers []JobWrapper
logger *olog.Logger
parser cron.Parser
// Distributed task
DistributedTask bool
WaitLockTime time.Duration
*etcdv3.Config
client *etcdv3.Client
}
// WithChain ...
func (config *Config) WithChain(wrappers ...JobWrapper) Config {
if config.wrappers == nil {
config.wrappers = []JobWrapper{}
}
config.wrappers = append(config.wrappers, wrappers...)
return *config
}
// WithLogger ...
func (config *Config) WithLogger(logger *olog.Logger) Config {
config.logger = logger
return *config
}
// WithParser ...
func (config *Config) WithParser(parser Parser) Config {
config.parser = parser
return *config
}
// Build ...
func (config Config) Build() *Cron {
if config.WithSeconds {
config.parser = cron.NewParser(cron.Second | cron.Minute | cron.Hour | cron.Dom | cron.Month | cron.Dow | cron.Descriptor)
} else {
// default parser
config.parser = cron.NewParser(cron.Minute | cron.Hour | cron.Dom | cron.Month | cron.Dow | cron.Descriptor)
}
if config.ConcurrentDelay > 0 { // 延迟
config.wrappers = append(config.wrappers, delayIfStillRunning(config.logger))
} else if config.ConcurrentDelay < 0 { // 跳过
config.wrappers = append(config.wrappers, skipIfStillRunning(config.logger))
} else {
// 默认不延迟也不跳过
}
if config.DistributedTask {
// 创建 Etcd Lock
newETCDXcron(&config)
} else {
config.Config = &etcdv3.Config{}
}
return newCron(&config)
}
func newETCDXcron(config *Config) {
if config.logger == nil {
config.logger = olog.DefaultLogger
}
config.logger = config.logger.With(olog.FieldMod(ecode.ModXcronETCD), olog.FieldAddrAny(config.Config.Endpoints))
config.client = config.Config.MustBuild()
if config.TTL == 0 {
config.TTL = DefaultTTL
}
return
}
type wrappedLogger struct {
*olog.Logger
}
// Info logs routine messages about cron's operation.
func (wl *wrappedLogger) Info(msg string, keysAndValues ...interface{}) {
wl.Infow("cron "+msg, keysAndValues...)
}
// Error logs an error condition.
func (wl *wrappedLogger) Error(err error, msg string, keysAndValues ...interface{}) {
wl.Errorw("cron "+msg, append(keysAndValues, "err", err)...)
}
type wrappedJob struct {
NamedJob
logger *olog.Logger
distributedTask bool
waitLockTime time.Duration
leaseTTL int
client *etcdv3.Client
}
const (
// 任务锁
WorkerLockDir = "/xcron/lock/"
DefaultTTL = 60 // default set
DefaultWaitLockTime = 1000 // ms
)
// Run ...
func (wj wrappedJob) Run() {
if wj.distributedTask {
mutex, err := wj.client.NewMutex(WorkerLockDir+wj.Name(), concurrency.WithTTL(wj.leaseTTL))
if err != nil {
wj.logger.Error("mutex", olog.String("err", err.Error()))
return
}
if wj.waitLockTime == 0 {
err = mutex.TryLock(DefaultWaitLockTime * time.Millisecond)
} else { // 阻塞等待直到waitLockTime timeout
err = mutex.Lock(wj.waitLockTime)
}
if err != nil {
wj.logger.Info("mutex lock", olog.String("err", err.Error()))
return
}
defer mutex.Unlock()
}
_ = wj.run()
}
func (wj wrappedJob) run() (err error) {
metric.JobHandleCounter.Inc("cron", wj.Name(), "begin")
var fields = []olog.Field{zap.String("name", wj.Name())}
var beg = time.Now()
defer func() {
if rec := recover(); rec != nil {
switch rec := rec.(type) {
case error:
err = rec
default:
err = fmt.Errorf("%v", rec)
}
stack := make([]byte, 4096)
length := runtime.Stack(stack, true)
fields = append(fields, zap.ByteString("stack", stack[:length]))
}
if err != nil {
fields = append(fields, olog.String("err", err.Error()), olog.Duration("cost", time.Since(beg)))
wj.logger.Error("run", fields...)
} else {
wj.logger.Info("run", fields...)
}
metric.JobHandleHistogram.Observe(time.Since(beg).Seconds(), "cron", wj.Name())
}()
return wj.NamedJob.Run()
}