christophd commented on code in PR #5597:
URL: https://github.com/apache/camel-k/pull/5597#discussion_r1629561028
##########
pkg/util/bindings/knative_ref.go:
##########
@@ -93,26 +89,72 @@ func (k KnativeRefBindingProvider) Translate(ctx
BindingContext, endpointCtx End
if props["name"] == "" {
props["name"] = e.Ref.Name
}
+
+ if endpointCtx.Type == v1.EndpointTypeSource {
+ // Configure trigger filter attributes for the Knative
event source
+ for key, value := range props {
+ if key == "cloudEventsType" {
+ // cloudEventsType is a synonym for
type filter attribute
+ filterExpressions =
append(filterExpressions, fmt.Sprintf("type=%s", value))
+ } else if key != "name" {
+ filterExpressions =
append(filterExpressions, fmt.Sprintf("%s=%s", key, value))
+ }
+ }
+ }
+
if eventType, ok := props["type"]; ok {
- // consume prop
+ // consume the type property and set it as URI path
parameter
delete(props, "type")
serviceURI = fmt.Sprintf("knative:%s/%s", *serviceType,
eventType)
+ } else if endpointCtx.Type == v1.EndpointTypeSink ||
endpointCtx.Type == v1.EndpointTypeAction {
+ // Allowing no event type, but it can fail. See
https://github.com/apache/camel-k-runtime/issues/536
+ serviceURI = fmt.Sprintf("knative:%s", *serviceType)
+ } else if cloudEventsType, found := props["cloudEventsType"];
found {
+ // set the cloud events type as URI path parameter, but
keep it also as URI query param
+ serviceURI = fmt.Sprintf("knative:%s/%s", *serviceType,
cloudEventsType)
} else {
- if endpointCtx.Type == v1.EndpointTypeSink ||
endpointCtx.Type == v1.EndpointTypeAction {
- // Allowing no event type, but it can fail. See
https://github.com/apache/camel-k/v2-runtime/issues/536
- serviceURI = fmt.Sprintf("knative:%s",
*serviceType)
- } else {
- return nil, errors.New(`property "type" must be
provided when reading from the Broker`)
- }
+ // Use default event type as a service URI path
parameter as we need it for the Camel endpoint, but do not filter by the event
type
+ filterEventType = false
+ serviceURI = fmt.Sprintf("knative:%s/%s", *serviceType,
knativeapis.CamelCloudEventTypeDefault)
}
} else {
serviceURI = fmt.Sprintf("knative:%s/%s", *serviceType,
url.PathEscape(e.Ref.Name))
}
+ // Remove filter attributes from props to avoid adding them to the
service URI query params
+ for _, exp := range filterExpressions {
+ key, _ := property.SplitPropertyFileEntry(exp)
+ delete(props, key)
+ }
+
+ // Enrich service URI query params if not set
+ if props["apiVersion"] == "" {
+ props["apiVersion"] = e.Ref.APIVersion
+ }
+ if props["kind"] == "" {
+ props["kind"] = e.Ref.Kind
+ }
+
serviceURI = uri.AppendParameters(serviceURI, props)
- return &Binding{
+ var binding = Binding{
URI: serviceURI,
- }, nil
+ }
+
+ if len(filterExpressions) > 0 {
Review Comment:
I think the binding is supposed to adjust/configure the traits by design as
it is part of the binding interface API and the trait config set by the binding
explicitly gets merged into the integration traits.
See https://github.com/apache/camel-k/blob/main/pkg/util/bindings/api.go#L41
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