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adapter.go
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adapter.go
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package logztarget
import (
"context"
"go.uber.org/zap"
cloudevents "github.com/cloudevents/sdk-go/v2"
pkgadapter "knative.dev/eventing/pkg/adapter/v2"
"knative.dev/pkg/logging"
"github.com/logzio/logzio-go"
"github.com/zeiss/typhoon/pkg/apis/targets"
"github.com/zeiss/typhoon/pkg/apis/targets/v1alpha1"
"github.com/zeiss/typhoon/pkg/metrics"
targetce "github.com/zeiss/typhoon/pkg/targets/adapter/cloudevents"
)
// NewTarget adapter implementation
func NewTarget(ctx context.Context, envAcc pkgadapter.EnvConfigAccessor, ceClient cloudevents.Client) pkgadapter.Adapter {
logger := logging.FromContext(ctx)
mt := &pkgadapter.MetricTag{
ResourceGroup: targets.LogzTargetResource.String(),
Namespace: envAcc.GetNamespace(),
Name: envAcc.GetName(),
}
metrics.MustRegisterEventProcessingStatsView()
env := envAcc.(*envAccessor)
replier, err := targetce.New(env.Component, logger.Named("replier"),
targetce.ReplierWithStatefulHeaders(env.BridgeIdentifier),
targetce.ReplierWithStaticResponseType(v1alpha1.EventTypeLogzShipResponse),
targetce.ReplierWithPayloadPolicy(targetce.PayloadPolicy(env.CloudEventPayloadPolicy)))
if err != nil {
logger.Panicf("Error creating CloudEvents replier: %v", err)
}
l, err := logzio.New(
env.ShippingToken,
logzio.SetUrl("https://"+env.LogsListenerURL+":8071"),
)
if err != nil {
panic(err)
}
return &logzAdapter{
l: l,
replier: replier,
ceClient: ceClient,
logger: logger,
sr: metrics.MustNewEventProcessingStatsReporter(mt),
}
}
var _ pkgadapter.Adapter = (*logzAdapter)(nil)
type logzAdapter struct {
l *logzio.LogzioSender
replier *targetce.Replier
ceClient cloudevents.Client
logger *zap.SugaredLogger
sr *metrics.EventProcessingStatsReporter
}
// Returns if stopCh is closed or Send() returns an error.
func (a *logzAdapter) Start(ctx context.Context) error {
a.logger.Info("Starting Logz adapter")
return a.ceClient.StartReceiver(ctx, a.dispatch)
}
func (a *logzAdapter) dispatch(ctx context.Context, event cloudevents.Event) (*cloudevents.Event, cloudevents.Result) {
err := a.l.Send(event.Data())
if err != nil {
return a.replier.Error(&event, targetce.ErrorCodeAdapterProcess, err, nil)
}
return a.replier.Ok(&event, "ok")
}