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exchange.go
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exchange.go
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/*
Copyright 2020 The Knative Authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package rabbit
import (
"net/url"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"knative.dev/eventing-rabbitmq/pkg/apis/sources/v1alpha1"
"knative.dev/pkg/kmeta"
rabbitv1beta1 "knative.dev/eventing-rabbitmq/third_party/pkg/apis/rabbitmq.com/v1beta1"
eventingv1 "knative.dev/eventing/pkg/apis/eventing/v1"
)
// ExchangeArgs are the arguments to create a RabbitMQ Exchange.
type ExchangeArgs struct {
Name string
Namespace string
RabbitmqClusterReference *rabbitv1beta1.RabbitmqClusterReference
RabbitMQURL *url.URL
Broker *eventingv1.Broker
Trigger *eventingv1.Trigger
Source *v1alpha1.RabbitmqSource
}
// NewExchange returns an `exchange.rabbitmq.com` object
// used by trigger, broker, and source reconcilers
// when used by trigger and broker, exchange properties such as `durable`, autoDelete`, and `type` are hardcoded
func NewExchange(args *ExchangeArgs) *rabbitv1beta1.Exchange {
// exchange configurations for triggers and broker
vhost := "/"
durable := true
autoDelete := false
exchangeType := "headers"
var exchangeName string
var ownerReference metav1.OwnerReference
if args.Trigger != nil {
ownerReference = *kmeta.NewControllerRef(args.Trigger)
exchangeName = args.Name
} else if args.Broker != nil {
ownerReference = *kmeta.NewControllerRef(args.Broker)
exchangeName = args.Name
} else if args.Source != nil {
ownerReference = *kmeta.NewControllerRef(args.Source)
durable = args.Source.Spec.ExchangeConfig.Durable
autoDelete = args.Source.Spec.ExchangeConfig.AutoDelete
exchangeType = args.Source.Spec.ExchangeConfig.Type
exchangeName = args.Source.Spec.ExchangeConfig.Name
vhost = args.Source.Spec.Vhost
}
return &rabbitv1beta1.Exchange{
ObjectMeta: metav1.ObjectMeta{
Namespace: args.Namespace,
Name: args.Name,
OwnerReferences: []metav1.OwnerReference{ownerReference},
Labels: Labels(args.Broker, args.Trigger, args.Source),
},
Spec: rabbitv1beta1.ExchangeSpec{
Name: exchangeName,
Vhost: vhost,
Type: exchangeType,
Durable: durable,
AutoDelete: autoDelete,
RabbitmqClusterReference: *args.RabbitmqClusterReference,
},
}
}