/
ops.go
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/
ops.go
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// Copyright 2021 Antrea 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 crdhandler
import (
"context"
"reflect"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
crd "github.com/vmware-tanzu/antrea/pkg/apis/crd/v1alpha1"
crdclient "github.com/vmware-tanzu/antrea/pkg/client/clientset/versioned/typed/crd/v1alpha1"
crdlister "github.com/vmware-tanzu/antrea/pkg/client/listers/crd/v1alpha1"
"github.com/vmware-tanzu/antrea/pkg/controller/crdmirroring/types"
legacyops "github.com/vmware-tanzu/antrea/pkg/legacyapis/ops/v1alpha1"
legacyopsclient "github.com/vmware-tanzu/antrea/pkg/legacyclient/clientset/versioned/typed/ops/v1alpha1"
legacyopslister "github.com/vmware-tanzu/antrea/pkg/legacyclient/listers/ops/v1alpha1"
)
type TraceflowHandler struct {
lister crdlister.TraceflowLister
legacyLister legacyopslister.TraceflowLister
client crdclient.TraceflowInterface
legacyClient legacyopsclient.TraceflowInterface
}
func NewTraceflowHandler(lister crdlister.TraceflowLister,
legacyLister legacyopslister.TraceflowLister,
client crdclient.TraceflowInterface,
legacyClient legacyopsclient.TraceflowInterface) types.MirroringHandler {
mc := &TraceflowHandler{
lister: lister,
legacyLister: legacyLister,
client: client,
legacyClient: legacyClient,
}
return mc
}
// GetNewObject gets the mirrored new Traceflow struct.
func (c *TraceflowHandler) GetNewObject(namespace, name string) (metav1.Object, error) {
return c.lister.Get(name)
}
// AddNewObject creates the mirrored new Traceflow.
func (c *TraceflowHandler) AddNewObject(obj metav1.Object) error {
l := obj.(*legacyops.Traceflow)
n := c.buildNewObject(l)
_, err := c.client.Create(context.TODO(), n, metav1.CreateOptions{})
if err != nil {
return err
}
return nil
}
// SyncObject updates the mirrored new Traceflow.
func (c *TraceflowHandler) SyncObject(legacyObj, newObj metav1.Object) error {
if !c.deepEqualSpecAndLabels(legacyObj, newObj) {
n := c.syncNewObject(legacyObj, newObj)
_, err := c.client.Update(context.TODO(), n, metav1.UpdateOptions{})
if err != nil {
return err
}
}
if !c.deepEqualStatus(legacyObj, newObj) {
l := c.syncLegacyObject(legacyObj, newObj)
_, err := c.legacyClient.UpdateStatus(context.TODO(), l, metav1.UpdateOptions{})
if err != nil {
return err
}
}
return nil
}
// DeleteNewObject deletes the mirrored new Traceflow.
func (c *TraceflowHandler) DeleteNewObject(namespace, name string) error {
return c.client.Delete(context.TODO(), name, metav1.DeleteOptions{})
}
// UpdateNewObject updates the mirrored new ClusterGroup.
func (c *TraceflowHandler) UpdateNewObject(newObj metav1.Object) error {
n := newObj.(*crd.Traceflow)
_, err := c.client.Update(context.TODO(), n, metav1.UpdateOptions{})
return err
}
// GetLegacyObject gets the legacy Traceflow struct.
func (c *TraceflowHandler) GetLegacyObject(namespace, name string) (metav1.Object, error) {
return c.legacyLister.Get(name)
}
// buildNewObject returns a new Traceflow struct.
func (c *TraceflowHandler) buildNewObject(obj metav1.Object) *crd.Traceflow {
l := obj.(*legacyops.Traceflow)
n := &crd.Traceflow{}
n.Spec = *l.Spec.DeepCopy()
setMetaData(l, n)
return n
}
// syncNewObject syncs legacy Traceflow's Spec and Labels to the new Traceflow.
func (c *TraceflowHandler) syncNewObject(legacyObj, newObj metav1.Object) *crd.Traceflow {
l := legacyObj.(*legacyops.Traceflow)
n := newObj.(*crd.Traceflow).DeepCopy()
n.Spec = *l.Spec.DeepCopy()
n.Labels = labelsDeepCopy(l)
return n
}
// syncLegacyObject syncs new Traceflow's Status to the legacy Traceflow.
func (c *TraceflowHandler) syncLegacyObject(legacyObj, newObj metav1.Object) *legacyops.Traceflow {
l := legacyObj.(*legacyops.Traceflow).DeepCopy()
n := newObj.(*crd.Traceflow)
l.Status = *n.Status.DeepCopy()
return l
}
func (c *TraceflowHandler) deepEqualSpecAndLabels(legacyObj, newObj metav1.Object) bool {
l := legacyObj.(*legacyops.Traceflow)
n := newObj.(*crd.Traceflow)
if !reflect.DeepEqual(l.Spec, n.Spec) {
return false
}
if !reflect.DeepEqual(l.Labels, n.Labels) {
return false
}
return true
}
func (c *TraceflowHandler) deepEqualStatus(legacyObj, newObj metav1.Object) bool {
l := legacyObj.(*legacyops.Traceflow)
n := newObj.(*crd.Traceflow)
return reflect.DeepEqual(l.Status, n.Status)
}