/
handler.go
60 lines (47 loc) · 1.62 KB
/
handler.go
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package event
import (
"context"
"github.com/ONSdigital/dp-import/events"
"github.com/ONSdigital/log.go/v2/log"
)
//go:generate moq -out ./eventtest/hierarchy_store.go -pkg eventtest . HierarchyStore
//go:generate moq -out ./eventtest/event_producer.go -pkg eventtest . EventProducer
// DataImportCompleteHandler ...
type DataImportCompleteHandler struct {
hierarchyStore HierarchyStore
eventProducer EventProducer
}
// HierarchyStore provides storage functionality for hierarchy data
type HierarchyStore interface {
BuildHierarchy(instanceID, codeListID, dimensionName string) error
}
// EventProducer handles producing output events.
type EventProducer interface {
HierarchyBuilt(ctx context.Context, instanceID, dimensionName string) error
}
// NewDataImportCompleteHandler ...
func NewDataImportCompleteHandler(hierarchyStore HierarchyStore, eventProducer EventProducer) *DataImportCompleteHandler {
return &DataImportCompleteHandler{
hierarchyStore: hierarchyStore,
eventProducer: eventProducer,
}
}
// Handle takes a single event, and returns the observations gathered from the URL in the event.
func (handler DataImportCompleteHandler) Handle(ctx context.Context, event *events.DataImportComplete) error {
logData := log.Data{"event": event}
log.Info(ctx, "event handler called", logData)
err := handler.hierarchyStore.BuildHierarchy(
event.InstanceID,
event.CodeListID,
event.DimensionName,
)
if err != nil {
return err
}
err = handler.eventProducer.HierarchyBuilt(ctx, event.InstanceID, event.DimensionName)
if err != nil {
return err
}
log.Info(ctx, "event successfully handled", logData)
return nil
}