func New(proto, laddr, raddr, user, passwd string, db ...string) *Conn {
return &Conn{
Raw: mysql.New(proto, laddr, raddr, user, passwd, db...),
MaxRetries: 7,
}
}
// Open new connection. The uri need to have the following syntax:
//
// [PROTOCOL_SPECFIIC*]DBNAME/USER/PASSWD
//
// where protocol spercific part may be empty (this means connection to
// local server using default protocol). Currently possible forms:
//
// DBNAME/USER/PASSWD
// unix:SOCKPATH*DBNAME/USER/PASSWD
// unix:SOCKPATH,OPTIONS*DBNAME/USER/PASSWD
// tcp:ADDR*DBNAME/USER/PASSWD
// tcp:ADDR,OPTIONS*DBNAME/USER/PASSWD
//
// OPTIONS can contain comma separated list of options in form:
// opt1=VAL1,opt2=VAL2,boolopt3,boolopt4
// Currently implemented options:
// laddr - local address/port (eg. 1.2.3.4:0)
// timeout - connect timeout in format accepted by time.ParseDuration
func (d *Driver) Open(uri string) (driver.Conn, error) {
cfg := *d // copy default configuration
pd := strings.SplitN(uri, "*", 2)
if len(pd) == 2 {
// Parse protocol part of URI
p := strings.SplitN(pd[0], ":", 2)
if len(p) != 2 {
return nil, errors.New("Wrong protocol part of URI")
}
cfg.proto = p[0]
options := strings.Split(p[1], ",")
cfg.raddr = options[0]
for _, o := range options[1:] {
kv := strings.SplitN(o, "=", 2)
var k, v string
if len(kv) == 2 {
k, v = kv[0], kv[1]
} else {
k, v = o, "true"
}
switch k {
case "laddr":
cfg.laddr = v
case "timeout":
cfg.timeout = v
default:
return nil, errors.New("Unknown option: " + k)
}
}
// Remove protocol part
pd = pd[1:]
}
// Parse database part of URI
dup := strings.SplitN(pd[0], "/", 3)
if len(dup) != 3 {
return nil, errors.New("Wrong database part of URI")
}
cfg.db = dup[0]
cfg.user = dup[1]
cfg.passwd = dup[2]
// Establish the connection
c := conn{mysql.New(
cfg.proto, cfg.laddr, cfg.raddr, cfg.user, cfg.passwd, cfg.db,
)}
if cfg.timeout != "" {
to, err := time.ParseDuration(cfg.timeout)
if err != nil {
return nil, err
}
c.my.SetTimeout(to)
}
for _, q := range cfg.initCmds {
c.my.Register(q) // Register initialisation commands
}
if err := c.my.Connect(); err != nil {
return nil, errFilter(err)
}
c.my.NarrowTypeSet(true)
c.my.FullFieldInfo(false)
return &c, nil
}