hybridgroup.gobot/connection.go

85 lines
1.9 KiB
Go

package gobot
import (
"errors"
"log"
"reflect"
)
type Connection interface {
Connect() bool
Finalize() bool
}
type JSONConnection struct {
Name string `json:"name"`
Port string `json:"port"`
Adaptor string `json:"adaptor"`
}
type connection struct {
Name string `json:"-"`
Type string `json:"-"`
Adaptor AdaptorInterface `json:"-"`
Port string `json:"-"`
Robot *Robot `json:"-"`
Params map[string]interface{} `json:"-"`
}
type connections []*connection
// Start() starts all the connections.
func (c connections) Start() error {
var err error
log.Println("Starting connections...")
for _, connection := range c {
log.Println("Starting connection " + connection.Name + "...")
if connection.Connect() == false {
err = errors.New("Could not start connection")
break
}
}
return err
}
// Filanize() finalizes all the connections.
func (c connections) Finalize() {
for _, connection := range c {
connection.Finalize()
}
}
func NewConnection(adaptor AdaptorInterface, r *Robot) *connection {
c := new(connection)
s := reflect.ValueOf(adaptor).Type().String()
c.Type = s[1:len(s)]
c.Name = FieldByNamePtr(adaptor, "Name").String()
c.Port = FieldByNamePtr(adaptor, "Port").String()
c.Params = make(map[string]interface{})
keys := FieldByNamePtr(adaptor, "Params").MapKeys()
for k := range keys {
c.Params[keys[k].String()] = FieldByNamePtr(adaptor, "Params").MapIndex(keys[k])
}
c.Robot = r
c.Adaptor = adaptor
return c
}
func (c *connection) Connect() bool {
log.Println("Connecting to " + c.Name + " on port " + c.Port + "...")
return c.Adaptor.Connect()
}
func (c *connection) Finalize() bool {
log.Println("Finalizing " + c.Name + "...")
return c.Adaptor.Finalize()
}
func (c *connection) ToJSON() *JSONConnection {
return &JSONConnection{
Name: c.Name,
Port: c.Port,
Adaptor: c.Type,
}
}