github.com/kubewharf/katalyst-core@v0.5.3/pkg/agent/resourcemanager/fetcher/checkpoint/checkpoint.go (about)

     1  /*
     2  Copyright 2022 The Katalyst Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package checkpoint
    18  
    19  import (
    20  	"encoding/json"
    21  
    22  	"k8s.io/kubernetes/pkg/kubelet/checkpointmanager"
    23  	"k8s.io/kubernetes/pkg/kubelet/checkpointmanager/checksum"
    24  
    25  	"github.com/kubewharf/katalyst-api/pkg/protocol/reporterplugin/v1alpha1"
    26  )
    27  
    28  type ReporterManagerCheckpoint interface {
    29  	checkpointmanager.Checkpoint
    30  	GetData() map[string]*v1alpha1.GetReportContentResponse
    31  }
    32  
    33  // Data holds checkpoint data and its checksum
    34  type Data struct {
    35  	Data     map[string]*v1alpha1.GetReportContentResponse
    36  	Checksum checksum.Checksum
    37  }
    38  
    39  // New returns an instance of Checkpoint
    40  func New(reportResponses map[string]*v1alpha1.GetReportContentResponse) ReporterManagerCheckpoint {
    41  	return &Data{
    42  		Data: reportResponses,
    43  	}
    44  }
    45  
    46  func (d *Data) MarshalCheckpoint() ([]byte, error) {
    47  	d.Checksum = checksum.New(d.Data)
    48  	return json.Marshal(*d)
    49  }
    50  
    51  func (d *Data) UnmarshalCheckpoint(blob []byte) error {
    52  	return json.Unmarshal(blob, d)
    53  }
    54  
    55  func (d *Data) VerifyChecksum() error {
    56  	return d.Checksum.Verify(d.Data)
    57  }
    58  
    59  func (d *Data) GetData() map[string]*v1alpha1.GetReportContentResponse {
    60  	return d.Data
    61  }