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activity.go
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/
activity.go
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package cancellation
import (
"context"
"time"
"go.temporal.io/sdk/activity"
)
// @@@SNIPSTART samples-go-cancellation-activity-definition
type Activities struct{}
func (a *Activities) ActivityToBeCanceled(ctx context.Context) (string, error) {
logger := activity.GetLogger(ctx)
logger.Info("activity started, to cancel the Workflow Execution, use 'go run cancellation/cancel/main.go " +
"-w <WorkflowID>' or use the CLI: 'tctl wf cancel -w <WorkflowID>'")
for {
select {
case <-time.After(1 * time.Second):
logger.Info("heartbeating...")
activity.RecordHeartbeat(ctx, "")
case <-ctx.Done():
logger.Info("context is cancelled")
return "I am canceled by Done", nil
}
}
}
func (a *Activities) CleanupActivity(ctx context.Context) error {
logger := activity.GetLogger(ctx)
logger.Info("Cleanup Activity started")
return nil
}
func (a *Activities) ActivityToBeSkipped(ctx context.Context) error {
logger := activity.GetLogger(ctx)
logger.Info("this Activity will be skipped due to cancellation")
return nil
}
// @@@SNIPEND