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listener.go
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listener.go
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package project
import (
"bytes"
"github.com/Sirupsen/logrus"
"github.com/docker/libcompose/project/events"
)
var (
infoEvents = map[events.EventType]bool{
events.ProjectDeleteDone: true,
events.ProjectDeleteStart: true,
events.ProjectDownDone: true,
events.ProjectDownStart: true,
events.ProjectRestartDone: true,
events.ProjectRestartStart: true,
events.ProjectUpDone: true,
events.ProjectUpStart: true,
events.ServiceDeleteStart: true,
events.ServiceDelete: true,
events.ServiceDownStart: true,
events.ServiceDown: true,
events.ServiceRestartStart: true,
events.ServiceRestart: true,
events.ServiceUpStart: true,
events.ServiceUp: true,
}
)
type defaultListener struct {
project *Project
listenChan chan events.Event
upCount int
}
// NewDefaultListener create a default listener for the specified project.
func NewDefaultListener(p *Project) chan<- events.Event {
l := defaultListener{
listenChan: make(chan events.Event),
project: p,
}
go l.start()
return l.listenChan
}
func (d *defaultListener) start() {
for event := range d.listenChan {
buffer := bytes.NewBuffer(nil)
if event.Data != nil {
for k, v := range event.Data {
if buffer.Len() > 0 {
buffer.WriteString(", ")
}
buffer.WriteString(k)
buffer.WriteString("=")
buffer.WriteString(v)
}
}
if event.EventType == events.ServiceUp {
d.upCount++
}
logf := logrus.Debugf
if infoEvents[event.EventType] {
logf = logrus.Infof
}
if event.ServiceName == "" {
logf("Project [%s]: %s %s", d.project.Name, event.EventType, buffer.Bytes())
} else {
logf("[%d/%d] [%s]: %s %s", d.upCount, d.project.ServiceConfigs.Len(), event.ServiceName, event.EventType, buffer.Bytes())
}
}
}