#347 task update feature by Update errors.go

flyteplugins/go/tasks/errors/errors.go

@@ -1,9 +1,11 @@
 package errors
 
 import (
+	"fmt"
 	"github.com/flyteorg/flyte/flytestdlib/errors"
 )
 
+// Error codes
 const (
 	TaskFailedWithError        errors.ErrorCode = "TaskFailedWithError"
 	DownstreamSystemError      errors.ErrorCode = "DownstreamSystemError"
@@ -20,10 +22,56 @@
 	BackOffError               errors.ErrorCode = "BackOffError"
 )
 
+// Errorf wraps the error message with a given error code.
 func Errorf(errorCode errors.ErrorCode, msgFmt string, args ...interface{}) error {
 	return errors.Errorf(errorCode, msgFmt, args...)
 }
 
+// Wrapf wraps an existing error with additional context and a given error code.
 func Wrapf(errorCode errors.ErrorCode, err error, msgFmt string, args ...interface{}) error {
 	return errors.Wrapf(errorCode, err, msgFmt, args...)
 }
+
+// Task represents a task that can be updated.
+type Task struct {
+	ID     string
+	Status string
+	Meta   string // Example metadata for the task
+}
+
+// UpdateTask updates the task's status and metadata, handling errors during the process.
+func UpdateTask(task *Task, newStatus string, newMeta string) error {
+	// Validate input
+	if task == nil {
+		return Errorf(BadTaskSpecification, "Task cannot be nil")
+	}
+	if newStatus == "" {
+		return Errorf(BadTaskSpecification, "New status cannot be empty")
+	}
+
+	// Simulate task update process
+	fmt.Printf("Updating task %s with new status: %s\n", task.ID, newStatus)
+
+	// Simulating potential failure in metadata access
+	if len(newMeta) > 100 { // Assuming metadata size limit is 100 characters
+		return Errorf(MetadataTooLarge, "Metadata size exceeds limit for task %s", task.ID)
+	}
+
+	// Simulate a downstream system error
+	if task.ID == "task-123" { // Example condition where a specific task might fail
+		err := fmt.Errorf("failed to communicate with downstream system")
+		return Wrapf(DownstreamSystemError, err, "Failed to update task %s", task.ID)
+	}
+
+	// Simulate successful update
+	task.Status = newStatus
+	task.Meta = newMeta
+
+	// Simulating a runtime failure
+	if task.Status == "failed" {
+		return Errorf(RuntimeFailure, "Task %s failed during update", task.ID)
+	}
+
+	fmt.Printf("Task %s successfully updated.\n", task.ID)
+	return nil
+}