func New(configFile string) *App {
app := new(App)
app.Config = new(Config)
if len(configFile) > 0 {
app.Config.File = configFile
} else {
app.Config.File = ConfigFile
}
app.Mux = bear.New()
err := loadConfig(app)
app.Log, _ = logger.New(app.Config.LogLevel)
if err != nil {
logger.MustWarn("%s was not loaded", app.Config.File)
}
if app.Config.Address == "" {
app.Config.Address = address
app.Log.Warn("address is not defined in %s, using default %s",
app.Config.File, address)
}
app.durations = make(map[string]time.Duration)
app.errors = make(map[string]string)
app.messages = make(map[string]string)
app.wares = make(map[string]func(ctx *bear.Context))
initDefaults(app)
return app
}
// New is the entry point to the sleuth package. It returns a reference to a
// Client object that has joined the local network. If the config argument is
// nil, sleuth will use sensible defaults. If the Handler attribute of the
// config object is not set, sleuth will operate in client-only mode.
func New(config *Config) (*Client, error) {
// Sanitize the configuration object.
config = initConfig(config)
// Use the same log level as the instantiator of the client. Because log level
// is guaranteed to be correct in initConfig, errors can be ignored.
log, _ := logger.New(config.logLevel)
conn := &connection{group: config.group}
if conn.server = config.Handler != nil; conn.server {
conn.handler = config.Handler
conn.name = config.Service
if len(conn.name) == 0 {
return nil, newError(errService, "config.Service not defined")
}
} else {
log.Init("sleuth: config.Handler is nil, client-only mode")
}
if conn.adapter = config.Interface; len(conn.adapter) == 0 {
log.Warn("sleuth: config.Interface not defined [%d]", warnInterface)
}
if conn.port = config.Port; conn.port == 0 {
conn.port = port
}
if conn.version = config.Version; len(conn.version) == 0 {
conn.version = "unknown"
}
node, err := newNode(conn, log)
if err != nil {
return nil, err.(*Error).escalate(errNew)
}
client := newClient(config.group, node, log)
client.handler = conn.handler
go listen(client)
return client, nil
}
func TestClientDispatchEmpty(t *testing.T) {
log, _ := logger.New(logger.Silent)
c := newClient(GROUP, nil, log)
err := c.dispatch([]byte{})
if err == nil {
t.Errorf("expected client dispatch to fail on empty payload")
return
}
testCodes(t, err, []int{errDispatchHeader})
}
func TestClientDispatchBadAction(t *testing.T) {
log, _ := logger.New(logger.Silent)
c := newClient(GROUP, nil, log)
err := c.dispatch([]byte(GROUP + "FAIL"))
if err == nil {
t.Errorf("expected client dispatch to fail on bad action")
return
}
testCodes(t, err, []int{errDispatchAction})
}
func TestClientAddBadMember(t *testing.T) {
log, _ := logger.New(logger.Silent)
c := newClient(GROUP, nil, log)
err := c.add(GROUP, "foo", "bar", "", "")
if err == nil {
t.Errorf("expected client dispatch to fail on bad member")
return
}
testCodes(t, err, []int{errAdd})
}
func TestClientReplyBadPayload(t *testing.T) {
log, _ := logger.New(logger.Silent)
c := newClient(GROUP, nil, log)
err := c.reply([]byte(""))
if err == nil {
t.Errorf("expected client reply to fail on bad payload")
return
}
testCodes(t, err, []int{errUnzip, errReqUnmarshal, errREPL})
}
func TestClientReceiveBadHandle(t *testing.T) {
log, _ := logger.New(logger.Silent)
c := newClient(GROUP, nil, log)
res := &response{Handle: "1"}
err := c.receive(resMarshal(GROUP, res)[len(GROUP)+len(recv):])
if err == nil {
t.Errorf("expected client receive to fail on bad handle")
return
}
testCodes(t, err, []int{errRECV})
}
func TestClientDoUnknownService(t *testing.T) {
log, _ := logger.New(logger.Silent)
c := newClient(GROUP, nil, log)
req, _ := http.NewRequest("POST", "sleuth://foo/bar", nil)
_, err := c.Do(req)
if err == nil {
t.Errorf("expected client Do to fail on unknown service")
return
}
testCodes(t, err, []int{errUnknownService})
}
func TestClientRemove(t *testing.T) {
log, _ := logger.New(logger.Silent)
c := newClient(GROUP, nil, log)
name := "foo"
service := "baz"
if c.services[service] != nil {
t.Errorf("expected workers to be empty")
return
}
c.add(GROUP, name, "node id", service, "v0.0.1")
if c.services[service] == nil || !c.services[service].available() {
t.Errorf("expected client add to succeed")
return
}
c.remove(name)
if c.services[service] != nil {
t.Errorf("expected client remove to succeed")
return
}
}
func TestClientRemoveNonexistent(t *testing.T) {
log, _ := logger.New(logger.Silent)
c := newClient(GROUP, nil, log)
c.remove("foo") // c.remove is a no op.
}