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Signed-off-by: Tamal Saha <tamal@appscode.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| /* | ||
| Copyright AppsCode Inc. and Contributors | ||
| 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 lib | ||
|
|
||
| import ( | ||
| "context" | ||
| "reflect" | ||
|
|
||
| core "k8s.io/api/core/v1" | ||
| "k8s.io/apimachinery/pkg/labels" | ||
| corelisters "k8s.io/client-go/listers/core/v1" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| ) | ||
|
|
||
| type PodReader struct { | ||
| delegate corelisters.PodLister | ||
| } | ||
|
|
||
| var _ client.Reader = &PodReader{} | ||
|
|
||
| func NewPodReader(delegate corelisters.PodLister) PodReader { | ||
| return PodReader{delegate: delegate} | ||
| } | ||
|
|
||
| func (r PodReader) Get(ctx context.Context, key client.ObjectKey, obj client.Object, _ ...client.GetOption) error { | ||
| pod, err := r.delegate.Pods(key.Namespace).Get(key.Name) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| assign(obj, pod) | ||
| return nil | ||
| } | ||
|
|
||
| func (r PodReader) List(ctx context.Context, list client.ObjectList, opts ...client.ListOption) error { | ||
| var o client.ListOptions | ||
| o.ApplyOptions(opts) | ||
|
|
||
| var ls labels.Selector | ||
| if o.LabelSelector != nil { | ||
| ls = o.LabelSelector | ||
| } else if o.Raw != nil && o.Raw.LabelSelector != "" { | ||
| var err error | ||
| ls, err = labels.Parse(o.Raw.LabelSelector) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
||
| pods, err := r.delegate.Pods(o.Namespace).List(ls) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| podList := core.PodList{ | ||
| Items: make([]core.Pod, 0, len(pods)), | ||
| } | ||
| for _, pod := range pods { | ||
| podList.Items = append(podList.Items, *pod) | ||
| } | ||
| assign(list, podList) | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| type PersistentVolumeClaimReader struct { | ||
| delegate corelisters.PersistentVolumeClaimLister | ||
| } | ||
|
|
||
| var _ client.Reader = &PersistentVolumeClaimReader{} | ||
|
|
||
| func NewPersistentVolumeClaimReader(delegate corelisters.PersistentVolumeClaimLister) PersistentVolumeClaimReader { | ||
| return PersistentVolumeClaimReader{delegate: delegate} | ||
| } | ||
|
|
||
| func (r PersistentVolumeClaimReader) Get(ctx context.Context, key client.ObjectKey, obj client.Object, _ ...client.GetOption) error { | ||
| pod, err := r.delegate.PersistentVolumeClaims(key.Namespace).Get(key.Name) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| assign(obj, pod) | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func (r PersistentVolumeClaimReader) List(ctx context.Context, list client.ObjectList, opts ...client.ListOption) error { | ||
| var o client.ListOptions | ||
| o.ApplyOptions(opts) | ||
|
|
||
| var ls labels.Selector | ||
| if o.LabelSelector != nil { | ||
| ls = o.LabelSelector | ||
| } else if o.Raw != nil && o.Raw.LabelSelector != "" { | ||
| var err error | ||
| ls, err = labels.Parse(o.Raw.LabelSelector) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
||
| pvcs, err := r.delegate.PersistentVolumeClaims(o.Namespace).List(ls) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
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| pvcList := core.PersistentVolumeClaimList{ | ||
| Items: make([]core.PersistentVolumeClaim, 0, len(pvcs)), | ||
| } | ||
| for _, pvc := range pvcs { | ||
| pvcList.Items = append(pvcList.Items, *pvc) | ||
| } | ||
| assign(list, pvcList) | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func assign(target, src any) { | ||
| srcValue := reflect.ValueOf(src) | ||
| if srcValue.Kind() == reflect.Pointer { | ||
| srcValue = srcValue.Elem() | ||
| } | ||
| reflect.ValueOf(target).Elem().Set(srcValue) | ||
| } |
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