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transport.go
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transport.go
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package transport
import (
"fmt"
"github.com/luopengift/golibs/logger"
"os"
"strings"
"time"
)
type Transport struct {
byteSize int
chanSize int
Inputs []*Input
Outputs []*Output
Adapts []*Adapt
recvChan chan []byte
sendChan chan []byte
isEnd chan bool
logs *logger.Logger
}
func NewTransport(cfg *Config) (*Transport, error) {
var err error
transport := new(Transport)
transport.Inputs, err = cfg.InitInputs()
if err != nil {
return nil, err
}
transport.Adapts, err = cfg.InitAdapts()
if err != nil {
return nil, err
}
transport.Outputs, err = cfg.InitOutputs()
if err != nil {
return nil, err
}
transport.byteSize = cfg.Runtime.BYTESIZE
transport.chanSize = cfg.Runtime.CHANSIZE
transport.recvChan = make(chan []byte, transport.chanSize)
transport.sendChan = make(chan []byte, transport.chanSize)
transport.isEnd = make(chan bool)
if cfg.Runtime.DEBUG {
transport.logs = logger.NewLogger(logger.DEBUG, os.Stdout)
} else {
transport.logs = logger.NewLogger(logger.INFO, os.Stdout)
}
transport.logs.SetPrefix("[transport]")
startCronTask()
return transport, err
}
func (t *Transport) injectInput(p []byte) {
t.recvChan <- p
}
func (t *Transport) injectOutput(p []byte) {
t.sendChan <- p
}
func (t *Transport) RunInputs() {
for _, input := range t.Inputs {
go input.Inputer.Start()
go func(in *Input) {
for {
b := make([]byte, t.byteSize, t.byteSize)
n, err := in.Read(b)
if err != nil {
t.logs.Error("[%s] read error:%s", in.Name, err.Error())
continue
}
t.recvChan <- b[:n]
t.logs.Debug("[%s] recv %v", in.Name, string(b[:n]))
}
}(input)
}
}
func (t *Transport) RunAdapts() {
for _, adapt := range t.Adapts {
go func(c *Adapt) {
for {
if value, ok := <-t.recvChan; ok {
c.channel.Add()
go func() {
b := make([]byte, t.byteSize, t.byteSize)
n, err := c.Handle(value, b)
if err != nil {
t.logs.Error("[%s] %s", c.Name, err.Error())
} else {
t.sendChan <- b[:n]
}
c.channel.Done()
}()
} else {
t.logs.Error("[%s] %s", c.Name, ReadBufferClosedError.Error())
break
}
}
}(adapt)
}
}
func (t *Transport) RunOutputs() {
for _, output := range t.Outputs {
go output.Start()
}
for {
value, ok := <-t.sendChan
if !ok {
t.logs.Error("%s", WriteBufferClosedError.Error())
break
}
t.logs.Debug("send %v", string(value))
for _, output := range t.Outputs {
func(out *Output) {
n, err := out.Write(value)
if err != nil {
t.logs.Error("[%s] write data err:%s,%v", out.Name, err.Error(), n)
}
}(output)
}
}
}
func (t *Transport) Run() {
go t.RunOutputs()
go t.RunAdapts()
go t.RunInputs()
}
func (t *Transport) Stop() {
stopCronTask() //关闭全部定时任务
for _, input := range t.Inputs {
input.Inputer.Close()
}
close(t.recvChan)
close(t.sendChan)
for _, output := range t.Outputs {
output.Outputer.Close()
}
t.logs.Info("stop success...%s", time.Now())
}
func (t *Transport) Stat() string {
input_stat := []string{}
for _, input := range t.Inputs {
input_stat = append(input_stat, fmt.Sprintf("%v:%v", input.Name, input.Count()))
}
adapt_stat := []string{}
for _, adapt := range t.Adapts {
adapt_stat = append(adapt_stat, fmt.Sprintf("%v:%v", adapt.Name, adapt.Count()))
}
output_stat := []string{}
for _, output := range t.Outputs {
output_stat = append(output_stat, fmt.Sprintf("%v:%v", output.Name, output.Count()))
}
return fmt.Sprintf("stat=> [inputs]:%s|[adapts]:%s|[outputs]:%s", strings.Join(input_stat, ","), strings.Join(adapt_stat, ","), strings.Join(output_stat, ","))
}
var T *Transport