github.com/1aal/kubeblocks@v0.0.0-20231107070852-e1c03e598921/pkg/lorry/operations/operations.go (about)

     1  /*
     2  Copyright (C) 2022-2023 ApeCloud Co., Ltd
     3  
     4  This file is part of KubeBlocks project
     5  
     6  This program is free software: you can redistribute it and/or modify
     7  it under the terms of the GNU Affero General Public License as published by
     8  the Free Software Foundation, either version 3 of the License, or
     9  (at your option) any later version.
    10  
    11  This program is distributed in the hope that it will be useful
    12  but WITHOUT ANY WARRANTY; without even the implied warranty of
    13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    14  GNU Affero General Public License for more details.
    15  
    16  You should have received a copy of the GNU Affero General Public License
    17  along with this program.  If not, see <http://www.gnu.org/licenses/>.
    18  */
    19  
    20  package operations
    21  
    22  import (
    23  	"sync"
    24  
    25  	"github.com/pkg/errors"
    26  )
    27  
    28  type Ops struct {
    29  	ops  map[string]Operation
    30  	lock sync.Mutex
    31  }
    32  
    33  var ops Ops
    34  
    35  func (ops *Ops) Register(name string, op Operation) error {
    36  	if _, ok := ops.ops[name]; ok {
    37  		return errors.New("Operation already registered: " + name)
    38  	}
    39  
    40  	ops.lock.Lock()
    41  	defer ops.lock.Unlock()
    42  	if ops.ops == nil {
    43  		ops.ops = make(map[string]Operation)
    44  	}
    45  
    46  	ops.ops[name] = op
    47  	return nil
    48  }
    49  
    50  func (ops *Ops) Operations() map[string]Operation {
    51  	return ops.ops
    52  }
    53  
    54  func Register(name string, op Operation) error {
    55  	return ops.Register(name, op)
    56  }
    57  
    58  func Operations() map[string]Operation {
    59  	return ops.Operations()
    60  }