func Initialize() {
http.DefaultTransport = &http.Transport{Proxy: http.ProxyFromEnvironment}
autowiredEmitter = nil
origin := os.Getenv("DROPSONDE_ORIGIN")
if len(origin) == 0 {
log.Println("Failed to auto-initialize dropsonde: DROPSONDE_ORIGIN environment variable not set")
return
}
destination = os.Getenv("DROPSONDE_DESTINATION")
if len(destination) == 0 {
log.Println("DROPSONDE_DESTINATION not set. Using " + defaultDestination)
destination = defaultDestination
}
udpEmitter, err := emitter.NewUdpEmitter(destination)
if err != nil {
log.Printf("Failed to auto-initialize dropsonde: %v\n", err)
return
}
hbEmitter, err := emitter.NewHeartbeatEmitter(udpEmitter, origin)
if err != nil {
log.Printf("Failed to auto-initialize dropsonde: %v\n", err)
return
}
autowiredEmitter = emitter.NewEventEmitter(hbEmitter, origin)
http.DefaultTransport = InstrumentedRoundTripper(http.DefaultTransport)
}
"code.google.com/p/gogoprotobuf/proto"
"github.com/cloudfoundry-incubator/dropsonde/emitter"
"github.com/cloudfoundry-incubator/dropsonde/emitter/fake"
"github.com/cloudfoundry-incubator/dropsonde/events"
"github.com/cloudfoundry-incubator/dropsonde/factories"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("EventEmitter", func() {
Describe("Emit", func() {
Context("without an origin", func() {
It("returns an error", func() {
innerEmitter := fake.NewFakeByteEmitter()
eventEmitter := emitter.NewEventEmitter(innerEmitter, "")
testEvent := factories.NewHeartbeat(1, 2, 3)
err := eventEmitter.Emit(testEvent)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("Wrap: "))
})
})
It("marshals events and delegates to the inner emitter", func() {
innerEmitter := fake.NewFakeByteEmitter()
origin := "fake-origin"
eventEmitter := emitter.NewEventEmitter(innerEmitter, origin)
testEvent := factories.NewHeartbeat(1, 2, 3)