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How to use launch method of launcher Package

Best Rod code snippet using launcher.launch

runtime_launcher_test.go

Source:runtime_launcher_test.go

...18	var (19		fakePackageProvider *mock.PackageProvider20		fakeRuntime         *mock.Runtime21		fakeRegistry        *fake.LaunchRegistry22		launchState         *chaincode.LaunchState23		fakeLaunchDuration  *metricsfakes.Histogram24		fakeLaunchFailures  *metricsfakes.Counter25		fakeLaunchTimeouts  *metricsfakes.Counter26		exitedCh            chan int27		ccci *ccprovider.ChaincodeContainerInfo28		runtimeLauncher *chaincode.RuntimeLauncher29	)30	BeforeEach(func() {31		launchState = chaincode.NewLaunchState()32		fakeRegistry = &fake.LaunchRegistry{}33		fakeRegistry.LaunchingReturns(launchState, false)34		fakeRuntime = &mock.Runtime{}35		fakeRuntime.StartStub = func(*ccprovider.ChaincodeContainerInfo, []byte) error {36			launchState.Notify(nil)37			return nil38		}39		exitedCh = make(chan int)40		waitExitCh := exitedCh // shadow to avoid race41		fakeRuntime.WaitStub = func(*ccprovider.ChaincodeContainerInfo) (int, error) {42			return <-waitExitCh, nil43		}44		fakePackageProvider = &mock.PackageProvider{}45		fakePackageProvider.GetChaincodeCodePackageReturns([]byte("code-package"), nil)46		fakeLaunchDuration = &metricsfakes.Histogram{}47		fakeLaunchDuration.WithReturns(fakeLaunchDuration)48		fakeLaunchFailures = &metricsfakes.Counter{}49		fakeLaunchFailures.WithReturns(fakeLaunchFailures)50		fakeLaunchTimeouts = &metricsfakes.Counter{}51		fakeLaunchTimeouts.WithReturns(fakeLaunchTimeouts)52		launchMetrics := &chaincode.LaunchMetrics{53			LaunchDuration: fakeLaunchDuration,54			LaunchFailures: fakeLaunchFailures,55			LaunchTimeouts: fakeLaunchTimeouts,56		}57		ccci = &ccprovider.ChaincodeContainerInfo{58			Name:          "chaincode-name",59			Path:          "chaincode-path",60			Version:       "chaincode-version",61			ContainerType: "chaincode-container-type",62			Type:          "chaincode-type",63		}64		runtimeLauncher = &chaincode.RuntimeLauncher{65			Runtime:         fakeRuntime,66			Registry:        fakeRegistry,67			PackageProvider: fakePackageProvider,68			StartupTimeout:  5 * time.Second,69			Metrics:         launchMetrics,70		}71	})72	AfterEach(func() {73		close(exitedCh)74	})75	It("registers the chaincode as launching", func() {76		err := runtimeLauncher.Launch(ccci)77		Expect(err).NotTo(HaveOccurred())78		Expect(fakeRegistry.LaunchingCallCount()).To(Equal(1))79		cname := fakeRegistry.LaunchingArgsForCall(0)80		Expect(cname).To(Equal("chaincode-name:chaincode-version"))81	})82	It("starts the runtime for the chaincode", func() {83		err := runtimeLauncher.Launch(ccci)84		Expect(err).NotTo(HaveOccurred())85		Expect(fakeRuntime.StartCallCount()).To(Equal(1))86		ccciArg, codePackage := fakeRuntime.StartArgsForCall(0)87		Expect(ccciArg).To(Equal(ccci))88		Expect(codePackage).To(Equal([]byte("code-package")))89	})90	It("waits for the launch to complete", func() {91		fakeRuntime.StartReturns(nil)92		errCh := make(chan error, 1)93		go func() { errCh <- runtimeLauncher.Launch(ccci) }()94		Consistently(errCh).ShouldNot(Receive())95		launchState.Notify(nil)96		Eventually(errCh).Should(Receive(BeNil()))97	})98	It("does not deregister the chaincode", func() {99		err := runtimeLauncher.Launch(ccci)100		Expect(err).NotTo(HaveOccurred())101		Expect(fakeRegistry.DeregisterCallCount()).To(Equal(0))102	})103	It("records launch duration", func() {104		err := runtimeLauncher.Launch(ccci)105		Expect(err).NotTo(HaveOccurred())106		Expect(fakeLaunchDuration.WithCallCount()).To(Equal(1))107		labelValues := fakeLaunchDuration.WithArgsForCall(0)108		Expect(labelValues).To(Equal([]string{109			"chaincode", "chaincode-name:chaincode-version",110			"success", "true",111		}))112		Expect(fakeLaunchDuration.ObserveArgsForCall(0)).NotTo(BeZero())113		Expect(fakeLaunchDuration.ObserveArgsForCall(0)).To(BeNumerically("<", 1.0))114	})115	Context("when starting the runtime fails", func() {116		BeforeEach(func() {117			fakeRuntime.StartReturns(errors.New("banana"))118		})119		It("returns a wrapped error", func() {120			err := runtimeLauncher.Launch(ccci)121			Expect(err).To(MatchError("error starting container: banana"))122		})123		It("notifies the LaunchState", func() {124			runtimeLauncher.Launch(ccci)125			Eventually(launchState.Done()).Should(BeClosed())126			Expect(launchState.Err()).To(MatchError("error starting container: banana"))127		})128		It("records chaincode launch failures", func() {129			runtimeLauncher.Launch(ccci)130			Expect(fakeLaunchFailures.WithCallCount()).To(Equal(1))131			labelValues := fakeLaunchFailures.WithArgsForCall(0)132			Expect(labelValues).To(Equal([]string{133				"chaincode", "chaincode-name:chaincode-version",134			}))135			Expect(fakeLaunchFailures.AddCallCount()).To(Equal(1))136			Expect(fakeLaunchFailures.AddArgsForCall(0)).To(BeNumerically("~", 1.0))137		})138		It("stops the runtime", func() {139			runtimeLauncher.Launch(ccci)140			Expect(fakeRuntime.StopCallCount()).To(Equal(1))141			ccciArg := fakeRuntime.StopArgsForCall(0)142			Expect(ccciArg).To(Equal(ccci))143		})144		It("deregisters the chaincode", func() {145			runtimeLauncher.Launch(ccci)146			Expect(fakeRegistry.DeregisterCallCount()).To(Equal(1))147			cname := fakeRegistry.DeregisterArgsForCall(0)148			Expect(cname).To(Equal("chaincode-name:chaincode-version"))149		})150	})151	Context("when the contaienr terminates before registration", func() {152		BeforeEach(func() {153			fakeRuntime.StartReturns(nil)154			fakeRuntime.WaitReturns(-99, nil)155		})156		It("returns an error", func() {157			err := runtimeLauncher.Launch(ccci)158			Expect(err).To(MatchError("chaincode registration failed: container exited with -99"))159		})160		It("attempts to stop the runtime", func() {161			runtimeLauncher.Launch(ccci)162			Expect(fakeRuntime.StopCallCount()).To(Equal(1))163			ccciArg := fakeRuntime.StopArgsForCall(0)164			Expect(ccciArg).To(Equal(ccci))165		})166		It("deregisters the chaincode", func() {167			runtimeLauncher.Launch(ccci)168			Expect(fakeRegistry.DeregisterCallCount()).To(Equal(1))169			cname := fakeRegistry.DeregisterArgsForCall(0)170			Expect(cname).To(Equal("chaincode-name:chaincode-version"))171		})172	})173	Context("when handler registration fails", func() {174		BeforeEach(func() {175			fakeRuntime.StartStub = func(*ccprovider.ChaincodeContainerInfo, []byte) error {176				launchState.Notify(errors.New("papaya"))177				return nil178			}179		})180		It("returns an error", func() {181			err := runtimeLauncher.Launch(ccci)182			Expect(err).To(MatchError("chaincode registration failed: papaya"))183		})184		It("stops the runtime", func() {185			runtimeLauncher.Launch(ccci)186			Expect(fakeRuntime.StopCallCount()).To(Equal(1))187			ccciArg := fakeRuntime.StopArgsForCall(0)188			Expect(ccciArg).To(Equal(ccci))189		})190		It("deregisters the chaincode", func() {191			runtimeLauncher.Launch(ccci)192			Expect(fakeRegistry.DeregisterCallCount()).To(Equal(1))193			cname := fakeRegistry.DeregisterArgsForCall(0)194			Expect(cname).To(Equal("chaincode-name:chaincode-version"))195		})196	})197	Context("when the runtime startup times out", func() {198		BeforeEach(func() {199			fakeRuntime.StartReturns(nil)200			runtimeLauncher.StartupTimeout = 250 * time.Millisecond201		})202		It("returns a meaningful error", func() {203			err := runtimeLauncher.Launch(ccci)204			Expect(err).To(MatchError("timeout expired while starting chaincode chaincode-name:chaincode-version for transaction"))205		})206		It("notifies the LaunchState", func() {207			runtimeLauncher.Launch(ccci)208			Eventually(launchState.Done()).Should(BeClosed())209			Expect(launchState.Err()).To(MatchError("timeout expired while starting chaincode chaincode-name:chaincode-version for transaction"))210		})211		It("records chaincode launch timeouts", func() {212			runtimeLauncher.Launch(ccci)213			Expect(fakeLaunchTimeouts.WithCallCount()).To(Equal(1))214			labelValues := fakeLaunchTimeouts.WithArgsForCall(0)215			Expect(labelValues).To(Equal([]string{216				"chaincode", "chaincode-name:chaincode-version",217			}))218			Expect(fakeLaunchTimeouts.AddCallCount()).To(Equal(1))219			Expect(fakeLaunchTimeouts.AddArgsForCall(0)).To(BeNumerically("~", 1.0))220		})221		It("stops the runtime", func() {222			runtimeLauncher.Launch(ccci)223			Expect(fakeRuntime.StopCallCount()).To(Equal(1))224			ccciArg := fakeRuntime.StopArgsForCall(0)225			Expect(ccciArg).To(Equal(ccci))226		})227		It("deregisters the chaincode", func() {228			runtimeLauncher.Launch(ccci)229			Expect(fakeRegistry.DeregisterCallCount()).To(Equal(1))230			cname := fakeRegistry.DeregisterArgsForCall(0)231			Expect(cname).To(Equal("chaincode-name:chaincode-version"))232		})233	})234	Context("when the registry indicates the chaincode has already been started", func() {235		BeforeEach(func() {236			fakeRegistry.LaunchingReturns(launchState, true)237		})238		It("does not start the runtime for the chaincode", func() {239			launchState.Notify(nil)240			err := runtimeLauncher.Launch(ccci)241			Expect(err).NotTo(HaveOccurred())242			Expect(fakeRuntime.StartCallCount()).To(Equal(0))243		})244		It("waits for the launch to complete", func() {245			fakeRuntime.StartReturns(nil)246			errCh := make(chan error, 1)247			go func() { errCh <- runtimeLauncher.Launch(ccci) }()248			Consistently(errCh).ShouldNot(Receive())249			launchState.Notify(nil)250			Eventually(errCh).Should(Receive(BeNil()))251		})252		Context("when the launch fails", func() {253			BeforeEach(func() {254				launchState.Notify(errors.New("gooey-guac"))255			})256			It("does not deregister the chaincode", func() {257				err := runtimeLauncher.Launch(ccci)258				Expect(err).To(MatchError("chaincode registration failed: gooey-guac"))259				Expect(fakeRegistry.DeregisterCallCount()).To(Equal(0))260			})261			It("does not stop the runtime", func() {262				err := runtimeLauncher.Launch(ccci)263				Expect(err).To(MatchError("chaincode registration failed: gooey-guac"))264				Expect(fakeRuntime.StopCallCount()).To(Equal(0))265			})266		})267	})268	Context("when stopping the runtime fails", func() {...

launch

Using AI Code Generation

1import (2func main() {3	launcher.Launch()4	fmt.Println("2.go")5}6import "fmt"7func Launch() {8	fmt.Println("launcher.go")9}10I was able to get it to work by renaming the launcher directory to launcherlib and then changing the import statement in 1.go to launcherlib. Thanks!11I was able to get it to work by renaming the launcher directory to launcherlib and then changing the import statement in 1.go to launcherlib. Thanks!12I was able to get it to work by renaming the launcher directory to launcherlib and then changing the import statement in 1.go to launcherlib. Thanks!

launch

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello world")4	launcher.Launch()5}6import (7func Launch() {8	fmt.Println("Launching")9}10import (11func TestLaunch(t *testing.T) {12	Launch()13}14import (15func BenchmarkLaunch(b *testing.B) {16	for i := 0; i < b.N; i++ {17		Launch()18	}19}20import "fmt"21func ExampleLaunch() {22	Launch()23}

launch

Using AI Code Generation

1import (2func main() {3    fmt.Println("code to use launch method of launcher class")4    launcher.Launch()5}6import "fmt"7func Launch() {8    fmt.Println("Launching...")9}

launch

Using AI Code Generation

1import (2func main() {3	launcher.Launch()4	fmt.Println("Hello World")5}6import "fmt"7func Launch() {8	fmt.Println("Launching")9}

launch

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello, playground")4	fmt.Println(launcher.Launch())5}6import (7func Launch() string {8	return fmt.Sprintf("Launch")9}10import (11func TestLaunch(t *testing.T) {12	if Launch() != "Launch" {13		t.Fatal("Launch")14	}15}16import (17func BenchmarkLaunch(b *testing.B) {18	for i := 0; i < b.N; i++ {19		Launch()20	}21}22import (23func ExampleLaunch() {24	fmt.Println(Launch())25}26import (27func BenchmarkLaunch(b *testing.B) {28	for i := 0; i < b.N; i++ {29		Launch()30	}31}32import (33func ExampleLaunch() {34	fmt.Println(Launch())35}36import (37func BenchmarkLaunch(b *testing.B) {38	for i := 0; i < b.N; i++ {39		Launch()40	}41}42import (43func ExampleLaunch() {44	fmt.Println(Launch())45}46import (47func BenchmarkLaunch(b *testing.B) {48	for i := 0; i < b.N; i++ {49		Launch()50	}51}52import (53func ExampleLaunch() {54	fmt.Println(Launch())55}

launch

Using AI Code Generation

1import (2func main() {3	launcher := new(Launcher)4	launcher.Launch()5}6import (7type Launcher struct {8}9func (l *Launcher) Launch() {10	fmt.Println("Launching...")11}12import (13type Launcher struct {14}15func (l *Launcher) Launch() {16	fmt.Println("Launching...")17}18import (19type Launcher struct {20}21func (l *Launcher) Launch() {22	fmt.Println("Launching...")23}24import (25type Launcher struct {26}27func (l *Launcher) Launch() {28	fmt.Println("Launching...")29}

launch

Using AI Code Generation

1import (2func main() {3	launcher.Launch()4	fmt.Println("2.go")5}6import "fmt"7func Launch() {8	fmt.Println("launcher.go")9}10import (11func main() {12	launcher.Launch()13	fmt.Println("3.go")14}15import "fmt"16func Launch() {17	fmt.Println("launcher.go")18}19import (20func main() {21	launcher.Launch()22	fmt.Println("4.go")23}24import "fmt"25func Launch() {26	fmt.Println("launcher.go")27}28import (29func main() {30	launcher.Launch()31	fmt.Println("5.go")32}33import "fmt"34func Launch() {35	fmt.Println("launcher.go")36}37import (38func main() {39	launcher.Launch()40	fmt.Println("6.go")41}42import "fmt"43func Launch() {44	fmt.Println("launcher.go")45}46import (47func main() {48	launcher.Launch()49	fmt.Println("7.go")50}51import "fmt"52func Launch() {53	fmt.Println("launcher.go")54}55import (56func main() {57	launcher.Launch()58	fmt.Println("8.go")59}60import "fmt"61func Launch() {62	fmt.Println("launcher.go")63}64import (

launch

Using AI Code Generation

1import (2func main() {3 fmt.Println("Starting...")4 launcher.Launch()5 fmt.Println("Done!")6}

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