How to use Error method of execution Package

Best Gauge code snippet using execution.Error

aclow.go

Source:aclow.go Github

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...30 Config map[string]interface{}31 Resources map[string]interface{}32 NodeMap map[string]Node33 Logger Logger34 OnError func(address string, msg Message, err error)35}36type Message struct {37 Header map[string]interface{}38 Body interface{}39}40type ReplyMessage struct {41 Message42 Err error43}44func (a *App) Start(opt StartOptions) {45 a.opt = opt46 a.Config = make(map[string]interface{})47 a.Resources = make(map[string]interface{})48 a.NodeMap = make(map[string]Node)49 a.Logger.start()50 if !opt.Local {51 a.startServer()52 a.startClient()53 }54}55func (a *App) Wait() {56 wg := &sync.WaitGroup{}57 wg.Add(1)58 wg.Wait()59}60func (a *App) startServer() {61 server := server.New(&server.Options{62 Host: a.opt.Host,63 Port: a.opt.Port,64 Routes: a.opt.ClusterRoutes,65 Cluster: server.ClusterOpts{66 Port: a.opt.ClusterPort,67 },68 })69 go server.Start()70 time.Sleep(time.Second * 1)71}72func (a *App) startClient() {73 nc, err := nats.Connect(fmt.Sprintf("localhost:%d", a.opt.Port))74 a.Conn, _ = nats.NewEncodedConn(nc, nats.GOB_ENCODER)75 if err != nil {76 log.Fatal(err)77 }78}79func (a *App) Publish(address string, msg Message) {80 localNode := a.NodeMap[address]81 if localNode == nil && !a.opt.Local {82 a.Conn.Publish(address, msg)83 } else if localNode == nil {84 err := fmt.Errorf("Address '%s' not found!", address)85 log.Println(err)86 } else {87 var err error88 defer func() {89 if r := recover(); r != nil {90 log.Println("Recovered:", r)91 log.Println(string(debug.Stack()))92 err = fmt.Errorf("Panic error on call: %v %v \n %v", localNode.Address(), r, string(debug.Stack()))93 if a.OnError != nil {94 go func() { a.OnError(address, msg, err) }()95 }96 }97 }()98 executionID := uuid.New().String()99 a.logIt(Log{100 logType: "starting-execution",101 executionID: executionID,102 address: address,103 message: msg,104 })105 reply, err := localNode.Execute(msg, a.makeCaller(address, executionID))106 a.logIt(Log{107 logType: "ending-execution",108 executionID: executionID,109 address: address,110 message: reply,111 err: err,112 })113 if err != nil {114 log.Println("Error executing:", address)115 log.Println(string(debug.Stack()))116 }117 }118}119func (a *App) Call(address string, msg Message) (r Message, err error) {120 localNode := a.NodeMap[address]121 if localNode == nil && !a.opt.Local {122 replyMsg := ReplyMessage{}123 err = a.Conn.Request(address, msg, &replyMsg, time.Second*30)124 if replyMsg.Err != nil {125 return Message{}, replyMsg.Err126 }127 r.Body = replyMsg.Body128 r.Header = replyMsg.Header129 if err != nil {130 log.Println("Error executing:", address, " => ", err.Error())131 log.Println(string(debug.Stack()))132 if a.OnError != nil {133 go func() { a.OnError(address, msg, err) }()134 }135 }136 return r, err137 } else if localNode == nil {138 err := fmt.Errorf(fmt.Sprintf("Address '%s' not found!", address))139 if a.OnError != nil {140 go func() { a.OnError(address, msg, err) }()141 }142 return Message{}, err143 } else {144 defer func() {145 if r := recover(); r != nil {146 log.Println("Recovered:", r)147 log.Println(string(debug.Stack()))148 err = fmt.Errorf("Panic error on call: %v %v \n %v", localNode.Address(), r, string(debug.Stack()))149 if a.OnError != nil {150 go func() { a.OnError(address, msg, err) }()151 }152 }153 }()154 executionID := uuid.New().String()155 a.logIt(Log{156 logType: "starting-execution",157 executionID: executionID,158 address: address,159 message: msg,160 })161 reply, err := localNode.Execute(msg, a.makeCaller(address, executionID))162 a.logIt(Log{163 logType: "ending-execution",164 executionID: executionID,165 address: address,166 message: reply,167 err: err,168 })169 if err != nil {170 log.Println("Error executing:", address, " => ", err.Error())171 log.Println(string(debug.Stack()))172 if a.OnError != nil {173 go func() { a.OnError(address, msg, err) }()174 }175 }176 return reply, err177 }178}179func (a *App) RegisterModule(moduleName string, nodes []Node) {180 for _, n := range nodes {181 //go func(n Node) {182 for _, addr := range n.Address() {183 nodeAddress := moduleName + "@" + addr184 a.NodeMap[nodeAddress] = n185 if !a.opt.Local {186 _, err := a.Conn.QueueSubscribe(nodeAddress, moduleName, func(_, reply string, msg Message) {187 executionID := uuid.New().String()188 a.logIt(Log{189 logType: "starting-execution",190 executionID: executionID,191 address: nodeAddress,192 message: msg,193 })194 go func(msg Message) {195 defer func() {196 if r := recover(); r != nil {197 log.Println("Recovered:", r)198 log.Println(string(debug.Stack()))199 err := fmt.Errorf("Panic error on call: %v %v \n %v", nodeAddress, r, string(debug.Stack()))200 if a.OnError != nil {201 go func() { a.OnError(nodeAddress, msg, err) }()202 }203 a.Conn.Publish(reply, ReplyMessage{Err: err})204 }205 }()206 caller := a.makeCaller(nodeAddress, executionID)207 result, err := n.Execute(msg, caller)208 a.logIt(Log{209 logType: "ending-execution",210 executionID: executionID,211 address: nodeAddress,212 message: result,213 err: err,214 })215 if err != nil {216 log.Println("Error executing:", nodeAddress)217 log.Println(string(debug.Stack()))218 if a.OnError != nil {219 go func() { a.OnError(nodeAddress, msg, err) }()220 }221 if reply != "" {222 a.Conn.Publish(reply, ReplyMessage{Err: err})223 }224 } else if reply != "" {225 a.Conn.Publish(reply, result)226 }227 }(msg)228 })229 if err != nil {230 println(err.Error)231 }232 }233 }234 go n.Start(a)235 //}(n)236 }237}238func (a *App) makeCaller(fromAddress string, executionID string) Caller {239 return func(address string, m Message) (Message, error) {240 a.logIt(Log{241 logType: "starting-call",242 executionID: executionID,243 executionAddress: fromAddress,244 address: address,...

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handler.go

Source:handler.go Github

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...34 return func(w http.ResponseWriter, req *http.Request) {35 jobExecutionID := mux.Vars(req)["name"]36 jobExecutionStatus, err := handler.store.GetJobExecutionStatus(jobExecutionID)37 if err != nil {38 w.WriteHeader(http.StatusInternalServerError)39 w.Write([]byte(utility.ServerError))40 logger.Error(fmt.Sprintf("Error getting job status for job_id: %s", jobExecutionID), err.Error())41 raven.CaptureError(err, map[string]string{"job_id": jobExecutionID})42 return43 }44 if jobExecutionStatus == "" {45 w.WriteHeader(http.StatusNotFound)46 return47 }48 fmt.Fprintf(w, jobExecutionStatus)49 }50}51func (handler *executionHandler) Handle() http.HandlerFunc {52 return func(w http.ResponseWriter, req *http.Request) {53 jobsExecutionAuditLog := &postgres.JobsExecutionAuditLog{54 JobExecutionStatus: "WAITING",55 }56 userEmail := req.Header.Get(utility.UserEmailHeaderKey)57 jobsExecutionAuditLog.UserEmail = userEmail58 var job Job59 err := json.NewDecoder(req.Body).Decode(&job)60 defer req.Body.Close()61 if err != nil {62 logger.Error(fmt.Sprintf("User: %s: Error parsing request body", userEmail), err.Error())63 raven.CaptureError(err, map[string]string{"user_email": userEmail})64 jobsExecutionAuditLog.Errors = fmt.Sprintf("Error parsing request body: %s", err.Error())65 jobsExecutionAuditLog.JobSubmissionStatus = utility.JobSubmissionClientError66 w.WriteHeader(http.StatusBadRequest)67 w.Write([]byte(utility.ClientError))68 go handler.auditor.JobsExecutionAndStatus(jobsExecutionAuditLog)69 return70 }71 jobExecutionID, err := handler.executioner.Execute(jobsExecutionAuditLog, job.Name, job.Args)72 if err != nil {73 logger.Error(fmt.Sprintf("%s: User %s: Error executing job: ", job.Name, userEmail), err.Error())74 raven.CaptureError(err, map[string]string{"user_email": userEmail, "job_name": job.Name})75 jobsExecutionAuditLog.Errors = fmt.Sprintf("Error executing job: %s", err.Error())76 jobsExecutionAuditLog.JobSubmissionStatus = utility.JobSubmissionServerError77 go handler.auditor.JobsExecutionAndStatus(jobsExecutionAuditLog)78 w.WriteHeader(http.StatusInternalServerError)79 w.Write([]byte(utility.ServerError))80 return81 }82 w.WriteHeader(http.StatusCreated)83 w.Write([]byte(fmt.Sprintf("{ \"name\":\"%s\" }", jobExecutionID)))84 remoteCallerURL := job.CallbackURL85 go handler.postJobExecute(jobsExecutionAuditLog, remoteCallerURL, jobExecutionID)86 return87 }88}89func (handler *executionHandler) postJobExecute(jobsExecutionAuditLog *postgres.JobsExecutionAuditLog, remoteCallerURL, jobExecutionID string) {90 handler.auditor.JobsExecutionAndStatus(jobsExecutionAuditLog)91 if remoteCallerURL != "" {92 handler.sendStatusToCaller(remoteCallerURL, jobExecutionID)93 }94}95func (handler *executionHandler) sendStatusToCaller(remoteCallerURL, jobExecutionID string) {96 status := utility.JobWaiting97 for {98 jobExecutionStatus, _ := handler.store.GetJobExecutionStatus(jobExecutionID)99 if jobExecutionStatus == "" {100 status = utility.JobNotFound101 break102 }103 if jobExecutionStatus == utility.JobSucceeded || jobExecutionStatus == utility.JobFailed {104 status = jobExecutionStatus105 break106 }107 time.Sleep(1 * time.Second)108 }109 value := map[string]string{"name": jobExecutionID, "status": status}110 jsonValue, err := json.Marshal(value)111 if err != nil {112 logger.Error(fmt.Sprintf("StatusCallback: Error parsing %#v", value), err.Error())113 raven.CaptureError(err, nil)114 return115 }116 _, err = http.Post(remoteCallerURL, "application/json", bytes.NewBuffer(jsonValue))117 if err != nil {118 logger.Error("StatusCallback: Error sending request to callback url", err.Error())119 raven.CaptureError(err, nil)120 return121 }122 return123}...

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task.go

Source:task.go Github

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1package task2import (3 "context"4 "v2ray.com/core/common/signal/semaphore"5)6type Task func() error7type executionContext struct {8 ctx context.Context9 tasks []Task10 onSuccess Task11 onFailure Task12}13func (c *executionContext) executeTask() error {14 if len(c.tasks) == 0 {15 return nil16 }17 ctx := context.Background()18 if c.ctx != nil {19 ctx = c.ctx20 }21 return executeParallel(ctx, c.tasks)22}23func (c *executionContext) run() error {24 err := c.executeTask()25 if err == nil && c.onSuccess != nil {26 return c.onSuccess()27 }28 if err != nil && c.onFailure != nil {29 return c.onFailure()30 }31 return err32}33type ExecutionOption func(*executionContext)34func WithContext(ctx context.Context) ExecutionOption {35 return func(c *executionContext) {36 c.ctx = ctx37 }38}39func Parallel(tasks ...Task) ExecutionOption {40 return func(c *executionContext) {41 c.tasks = append(c.tasks, tasks...)42 }43}44func Sequential(tasks ...Task) ExecutionOption {45 return func(c *executionContext) {46 if len(tasks) == 0 {47 return48 }49 if len(tasks) == 1 {50 c.tasks = append(c.tasks, tasks[0])51 return52 }53 c.tasks = append(c.tasks, func() error {54 return execute(tasks...)55 })56 }57}58func OnSuccess(task Task) ExecutionOption {59 return func(c *executionContext) {60 c.onSuccess = task61 }62}63func OnFailure(task Task) ExecutionOption {64 return func(c *executionContext) {65 c.onFailure = task66 }67}68func Single(task Task, opts ExecutionOption) Task {69 return Run(append([]ExecutionOption{Sequential(task)}, opts)...)70}71func Run(opts ...ExecutionOption) Task {72 var c executionContext73 for _, opt := range opts {74 opt(&c)75 }76 return func() error {77 return c.run()78 }79}80// execute runs a list of tasks sequentially, returns the first error encountered or nil if all tasks pass.81func execute(tasks ...Task) error {82 for _, task := range tasks {83 if err := task(); err != nil {84 return err85 }86 }87 return nil88}89// executeParallel executes a list of tasks asynchronously, returns the first error encountered or nil if all tasks pass.90func executeParallel(ctx context.Context, tasks []Task) error {91 n := len(tasks)92 s := semaphore.New(n)93 done := make(chan error, 1)94 for _, task := range tasks {95 <-s.Wait()96 go func(f func() error) {97 if err := f(); err != nil {98 select {99 case done <- err:100 default:101 }102 }103 s.Signal()104 }(task)105 }106 for i := 0; i < n; i++ {107 select {108 case err := <-done:109 return err110 case <-ctx.Done():111 return ctx.Err()112 case <-s.Wait():113 }114 }115 return nil116}...

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Error

Using AI Code Generation

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1import (2func main() {3 cmd := exec.Command("ls", "-l")4 err := cmd.Run()5 if err != nil {6 fmt.Println("Error: ", err)7 }8}9import (10func main() {11 cmd := exec.Command("ls", "-l")12 err := cmd.Run()13 if err != nil {14 fmt.Println("Error: ", err)15 }16}17import (18func main() {19 cmd := exec.Command("ls", "-l")20 stdout, err := cmd.StdoutPipe()21 if err != nil {22 fmt.Println("Error: ", err)23 }24 if err := cmd.Start(); err != nil {25 fmt.Println("Error: ", err)26 }27 output, err := ioutil.ReadAll(stdout)28 if err != nil {29 fmt.Println("Error: ", err)30 }31 fmt.Println(string(output))32}33import (

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Error

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1import (2func main() {3 cmd := exec.Command("ls", "-l")4 err := cmd.Run()5 if err != nil {6 fmt.Println("Error: ", err.Error())7 }8}9import (10func main() {11 cmd := exec.Command("ls", "-l")12 err := cmd.Run()13 if err != nil {14 fmt.Println("Error: ", err.String())15 }16}17import (18func main() {19 cmd := exec.Command("ls", "-l")20 err := cmd.Run()21 if err != nil {22 fmt.Println("Error: ", err.Error())23 }24}25import (26func main() {27 cmd := exec.Command("ls", "-l")28 err := cmd.Run()29 if err != nil {30 fmt.Println("Error: ", err.String())31 }32}33import (34func main() {35 cmd := exec.Command("ls", "-l")36 err := cmd.Run()37 if err != nil {38 fmt.Println("Error: ", err.Error())39 }40}41import (42func main() {43 cmd := exec.Command("ls", "-l")44 err := cmd.Run()45 if err != nil {46 fmt.Println("Error: ", err.String())47 }48}49import (

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Error

Using AI Code Generation

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1import (2func main() {3 cmd := exec.Command("ls", "-l")4 err := cmd.Run()5 if err != nil {6 fmt.Println("Error: ", err.Error())7 }8}9import (10func main() {11 cmd := exec.Command("ls", "-l")12 err := cmd.Run()13 if err != nil {14 fmt.Println("Error: ", err.String())15 }16}17import (18func main() {19 cmd := exec.Command("ls", "-l")20 err := cmd.Run()21 if err != nil {22 fmt.Println("Error: ", err.Error())23 }24}25import (26func main() {27 cmd := exec.Command("ls", "-l")28 err := cmd.Run()29 if err != nil {30 fmt.Println("Error: ", err.String())31 }32}33import (34func main() {35 cmd := exec.Command("ls", "-l")36 err := cmd.Run()37 if err != nil {38 fmt.Println("Error: ", err.Error())39 }40}41import (42func main() {43 cmd := exec.Command("ls", "-l")44 err := cmd.Run()45 if err != nil {46 fmt.Println("Error: ", err.String())47 }48}

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Error

Using AI Code Generation

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1import (2func main() {3 cmd := exec.Command("ls", "-a", "-l")4 err := cmd.Run()5 if err != nil {6 fmt.Println("Error: ", err)7 }8}9Error() method of execution class returns the error if any. The error can be of type *ExitError. The ExitError type is defined as:10type ExitError struct {11}12type ProcessState struct {13}14type Rusage struct {15}16type Timeval struct {17}18import (19func main() {20 cmd := exec.Command("ls", "-a", "-l")21 err := cmd.Run()22 if err != nil {23 if exitError, ok := err.(*exec.ExitError); ok {24 fmt.Printf("Error: %s25", exitError.Error())26 }27 }28}

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Error

Using AI Code Generation

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1import (2func main() {3 cmd := exec.Command("ls", "-l")4 out, err = cmd.Output()5 if err != nil {6 fmt.Println(err)7 os.Exit(1)8 }9 fmt.Println(string(out))10}11import (12func main() {13 cmd := exec.Command("ls", "-l")14 err = cmd.Run()15 if err != nil {16 fmt.Println(err)17 os.Exit(1)18 }19}

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Error

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1import (2func main() {3 cmd := exec.Command("ls", "nonexistent")4 err := cmd.Run()5 if err != nil {6 fmt.Println("Error:", err)7 }8}9import (10func main() {11 cmd := exec.Command("ls", "nonexistent")12 err := cmd.Run()13 if err != nil {14 fmt.Println("Error:", err.Error())15 fmt.Println("Exit code:", err.(*exec.ExitError).Sys().(syscall.WaitStatus).ExitStatus())16 }17}18import (19func main() {20 cmd := exec.Command("ls", "nonexistent")21 out, err := cmd.Output()22 if err != nil {23 fmt.Println("Error:", err)24 }25 fmt.Println("Output:", string(out))26}27import (28func main() {29 cmd := exec.Command("ls", "nonexistent")30 out, err := cmd.CombinedOutput()31 if err != nil {32 fmt.Println("Error:", err)33 }34 fmt.Println("Output:", string(out))35}36import (37func main() {38 cmd := exec.Command("ls", "nonexistent")39 err := cmd.Start()40 if err != nil {41 fmt.Println("Error:", err)42 }43}44import (45func main() {46 cmd := exec.Command("ls", "nonexistent")47 stdout, err := cmd.StdoutPipe()48 if err != nil {49 fmt.Println("Error:", err)50 }

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Error

Using AI Code Generation

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1import "fmt"2import "os/exec"3func main() {4 cmd := exec.Command("ls", "unknown")5 err := cmd.Run()6 fmt.Println(err.Error())7}

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Error

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1import (2func main() {3 cmd := exec.Command("ls", "foo")4 err := cmd.Run()5 fmt.Println(err)6}7import (8func main() {9 cmd := exec.Command("ls", "foo")10 err := cmd.Run()11 if err != nil {12 if exiterr, ok := err.(*exec.ExitError); ok {13 if status, ok := exiterr.Sys().(syscall.WaitStatus); ok {14 fmt.Println("Exit Status: ", status.ExitStatus())15 }16 } else {17 fmt.Println("error: ", err)18 }19 }20}21import (22func main() {23 cmd := exec.Command("ls", "foo")24 err := cmd.Run()25 if err != nil {26 if exiterr, ok := err.(*exec.ExitError); ok {27 if status, ok := exiterr.Sys().(syscall.WaitStatus); ok {28 fmt.Println("Exit Status: ", status.ExitStatus())29 }30 } else {31 fmt.Println("error:

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Error

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1import (2func main() {3 cmd := exec.Command("ls", "-l")4 fmt.Println(cmd.Args)5 err := cmd.Run()6 if err != nil {7 fmt.Println("Error: ", err)8 }9 cmd = exec.Command("ls", "-l", "unknown")10 fmt.Println(cmd.Args)11 err = cmd.Run()12 if err != nil {13 fmt.Println("Error: ", err)14 }15}16import (17func main() {18 cmd := exec.Command("ls", "-l")19 fmt.Println(cmd.Args)20 output, err := cmd.Output()21 if err != nil {22 fmt.Println("Error: ", err)23 }24 fmt.Println(string(output))25 cmd = exec.Command("ls", "-l", "unknown")26 fmt.Println(cmd.Args)27 output, err = cmd.Output()28 if err != nil {29 fmt.Println("Error: ", err)30 }31 fmt.Println(string(output))32}

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