func (dispatcher concreteActionDispatcher) Dispatch(req boshmbus.Request) (resp boshmbus.Response) {
action, err := dispatcher.actionFactory.Create(req.Method)
switch {
case err != nil:
resp = boshmbus.NewExceptionResponse("unknown message %s", req.Method)
dispatcher.logger.Error("Action Dispatcher", "Unknown action %s", req.Method)
case action.IsAsynchronous():
task := dispatcher.taskService.StartTask(func() (value interface{}, err error) {
value, err = dispatcher.actionRunner.Run(action, req.GetPayload())
return
})
resp = boshmbus.NewValueResponse(boshtask.TaskStateValue{
AgentTaskId: task.Id,
State: task.State,
})
default:
value, err := dispatcher.actionRunner.Run(action, req.GetPayload())
if err != nil {
err = bosherr.WrapError(err, "Action Failed %s", req.Method)
resp = boshmbus.NewExceptionResponse(err.Error())
dispatcher.logger.Error("Action Dispatcher", err.Error())
return
}
resp = boshmbus.NewValueResponse(value)
}
return
}
func (a agent) runMbusHandler(errChan chan error) {
handlerFunc := func(req boshmbus.Request) (resp boshmbus.Response) {
switch req.Method {
case "apply":
task := a.taskService.StartTask(func() (err error) {
action := a.actionFactory.Create(req.Method)
_, err = action.Run(req.GetPayload())
return
})
resp = boshmbus.NewValueResponse(TaskValue{
AgentTaskId: task.Id,
State: string(task.State),
})
case "get_task", "ping", "get_state":
action := a.actionFactory.Create(req.Method)
value, err := action.Run(req.GetPayload())
if err != nil {
resp = boshmbus.NewExceptionResponse(err.Error())
return
}
resp = boshmbus.NewValueResponse(value)
default:
resp = boshmbus.NewExceptionResponse("unknown message %s", req.Method)
}
return
}
errChan <- a.mbusHandler.Run(handlerFunc)
}
func (a agent) runMbusHandler(errChan chan error) {
handlerFunc := func(req boshmbus.Request) (resp boshmbus.Response) {
switch req.Method {
case "get_task", "ping", "get_state", "ssh", "start":
action := a.actionFactory.Create(req.Method)
value, err := action.Run(req.GetPayload())
if err != nil {
err = bosherr.WrapError(err, "Action Failed %s", req.Method)
resp = boshmbus.NewExceptionResponse(err.Error())
boshlog.Error("Agent", err.Error())
return
}
resp = boshmbus.NewValueResponse(value)
case "apply", "fetch_logs", "stop", "drain":
task := a.taskService.StartTask(func() (value interface{}, err error) {
action := a.actionFactory.Create(req.Method)
value, err = action.Run(req.GetPayload())
return
})
resp = boshmbus.NewValueResponse(TaskValue{
AgentTaskId: task.Id,
State: string(task.State),
})
default:
resp = boshmbus.NewExceptionResponse("unknown message %s", req.Method)
boshlog.Error("Agent", "Unknown action %s", req.Method)
}
return
}
errChan <- a.mbusHandler.Run(handlerFunc)
}