func (b *DefaultBackend) echo(data interface{}, client server.ProtocolClient) error {
d, okInterface := data.([]interface{})
if okInterface {
if len(d) == 0 {
client.WriteString("")
client.Flush()
return nil
} else {
if len(d) == 1 {
fmt.Printf("%v", d[0])
client.WriteInterface(d[0])
} else {
client.WriteArray(d)
}
client.Flush()
return nil
}
} else {
b, _ := data.([][]byte)
if len(b) == 0 {
client.WriteString("")
client.Flush()
return nil
} else {
if len(b) == 1 {
client.WriteString(string(b[0]))
} else {
s := make([]string, len(b))
for i, k := range b {
s[i] = string(k)
}
client.WriteString(strings.Join(s, " "))
}
client.Flush()
return nil
}
}
}