func (p HandlerProvider) Get(
platform boshplatform.Platform,
dirProvider boshdir.Provider,
) (handler boshhandler.Handler, err error) {
if p.handler != nil {
handler = p.handler
return
}
mbusURL, err := url.Parse(p.settingsService.GetSettings().Mbus)
if err != nil {
err = bosherr.WrapError(err, "Parsing handler URL")
return
}
switch mbusURL.Scheme {
case "nats":
handler = NewNatsHandler(p.settingsService, yagnats.NewClient(), p.logger)
case "https":
handler = boshmicro.NewHTTPSHandler(mbusURL, p.logger, platform.GetFs(), dirProvider)
default:
err = bosherr.Errorf("Message Bus Handler with scheme %s could not be found", mbusURL.Scheme)
}
p.handler = handler
return
}
BeforeEach(func() {
settingsService = &fakesettings.FakeSettingsService{}
logger = boshlog.NewLogger(boshlog.LevelNone)
platform = fakeplatform.NewFakePlatform()
dirProvider = boshdir.NewProvider("/var/vcap")
provider = NewHandlerProvider(settingsService, logger)
})
Describe("Get", func() {
It("returns nats handler", func() {
settingsService.Settings.Mbus = "nats://lol"
handler, err := provider.Get(platform, dirProvider)
Expect(err).ToNot(HaveOccurred())
// yagnats.NewClient returns new object every time
expectedHandler := NewNatsHandler(settingsService, yagnats.NewClient(), logger)
Expect(reflect.TypeOf(handler)).To(Equal(reflect.TypeOf(expectedHandler)))
})
It("returns https handler", func() {
url, err := gourl.Parse("https://lol")
Expect(err).ToNot(HaveOccurred())
settingsService.Settings.Mbus = "https://lol"
handler, err := provider.Get(platform, dirProvider)
Expect(err).ToNot(HaveOccurred())
Expect(handler).To(Equal(micro.NewHTTPSHandler(url, logger, platform.GetFs(), dirProvider)))
})
It("returns an error if not supported", func() {
settingsService.Settings.Mbus = "unknown-scheme://lol"