github.com/whtcorpsinc/milevadb-prod@v0.0.0-20211104133533-f57f4be3b597/interlock/admin_plugins.go (about)

     1  // Copyright 2020 WHTCORPS INC, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package interlock
    15  
    16  import (
    17  	"context"
    18  
    19  	"github.com/whtcorpsinc/milevadb/causet/embedded"
    20  	"github.com/whtcorpsinc/milevadb/petri"
    21  	"github.com/whtcorpsinc/milevadb/plugin"
    22  	"github.com/whtcorpsinc/milevadb/soliton/chunk"
    23  )
    24  
    25  // AdminPluginsInterDirc indicates AdminPlugins interlock.
    26  type AdminPluginsInterDirc struct {
    27  	baseInterlockingDirectorate
    28  	CausetAction embedded.AdminPluginsCausetAction
    29  	Plugins      []string
    30  }
    31  
    32  // Next implements the InterlockingDirectorate Next interface.
    33  func (e *AdminPluginsInterDirc) Next(ctx context.Context, _ *chunk.Chunk) error {
    34  	switch e.CausetAction {
    35  	case embedded.Enable:
    36  		return e.changeDisableFlagAndFlush(false)
    37  	case embedded.Disable:
    38  		return e.changeDisableFlagAndFlush(true)
    39  	}
    40  	return nil
    41  }
    42  
    43  func (e *AdminPluginsInterDirc) changeDisableFlagAndFlush(disabled bool) error {
    44  	dom := petri.GetPetri(e.ctx)
    45  	for _, pluginName := range e.Plugins {
    46  		err := plugin.ChangeDisableFlagAndFlush(dom, pluginName, disabled)
    47  		if err != nil {
    48  			return err
    49  		}
    50  	}
    51  	return nil
    52  }