github.com/1aal/kubeblocks@v0.0.0-20231107070852-e1c03e598921/pkg/controller/rsm/transformer_init.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 rsm
    21  
    22  import (
    23  	workloads "github.com/1aal/kubeblocks/apis/workloads/v1alpha1"
    24  	"github.com/1aal/kubeblocks/pkg/controller/graph"
    25  	"github.com/1aal/kubeblocks/pkg/controller/model"
    26  )
    27  
    28  type initTransformer struct {
    29  	*workloads.ReplicatedStateMachine
    30  }
    31  
    32  var _ graph.Transformer = &initTransformer{}
    33  
    34  func (t *initTransformer) Transform(ctx graph.TransformContext, dag *graph.DAG) error {
    35  	// init context
    36  	transCtx, _ := ctx.(*rsmTransformContext)
    37  	transCtx.rsm, transCtx.rsmOrig = t.ReplicatedStateMachine, t.ReplicatedStateMachine.DeepCopy()
    38  	graphCli, _ := transCtx.Client.(model.GraphClient)
    39  
    40  	// stop reconciliation if paused=true
    41  	if t.ReplicatedStateMachine.Spec.Paused {
    42  		graphCli.Root(dag, transCtx.rsmOrig, transCtx.rsm, model.ActionNoopPtr())
    43  		return graph.ErrPrematureStop
    44  	}
    45  
    46  	// init dag
    47  	graphCli.Root(dag, transCtx.rsmOrig, transCtx.rsm, model.ActionStatusPtr())
    48  
    49  	return nil
    50  }