volcano.sh/volcano@v1.9.0/pkg/controllers/queue/state/factory.go (about)

     1  /*
     2  Copyright 2019 The Volcano 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 state
    18  
    19  import (
    20  	"volcano.sh/apis/pkg/apis/bus/v1alpha1"
    21  	"volcano.sh/apis/pkg/apis/scheduling/v1beta1"
    22  )
    23  
    24  // State interface.
    25  type State interface {
    26  	// Execute executes the actions based on current state.
    27  	Execute(action v1alpha1.Action) error
    28  }
    29  
    30  // UpdateQueueStatusFn updates the queue status.
    31  type UpdateQueueStatusFn func(status *v1beta1.QueueStatus, podGroupList []string)
    32  
    33  // QueueActionFn will open, close or sync queue.
    34  type QueueActionFn func(queue *v1beta1.Queue, fn UpdateQueueStatusFn) error
    35  
    36  var (
    37  	// SyncQueue will sync queue status.
    38  	SyncQueue QueueActionFn
    39  	// OpenQueue will set state of queue to open
    40  	OpenQueue QueueActionFn
    41  	// CloseQueue will set state of queue to close
    42  	CloseQueue QueueActionFn
    43  )
    44  
    45  // NewState gets the state from queue status.
    46  func NewState(queue *v1beta1.Queue) State {
    47  	switch queue.Status.State {
    48  	case "", v1beta1.QueueStateOpen:
    49  		return &openState{queue: queue}
    50  	case v1beta1.QueueStateClosed:
    51  		return &closedState{queue: queue}
    52  	case v1beta1.QueueStateClosing:
    53  		return &closingState{queue: queue}
    54  	case v1beta1.QueueStateUnknown:
    55  		return &unknownState{queue: queue}
    56  	}
    57  
    58  	return nil
    59  }