github.com/1aal/kubeblocks@v0.0.0-20231107070852-e1c03e598921/pkg/configuration/core/config_patch_option.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 core
    21  
    22  import (
    23  	"bytes"
    24  	"reflect"
    25  )
    26  
    27  func compareWithConfig(left, right interface{}, option CfgOption) (bool, error) {
    28  	switch option.Type {
    29  	case CfgRawType:
    30  		if !typeMatch([]byte{}, left, right) {
    31  			return false, MakeError("invalid []byte data type!")
    32  		}
    33  		return bytes.Equal(left.([]byte), right.([]byte)), nil
    34  	case CfgLocalType:
    35  		if !typeMatch("", left, right) {
    36  			return false, MakeError("invalid string data type!")
    37  		}
    38  		return left.(string) == right.(string), nil
    39  	case CfgCmType, CfgTplType:
    40  		if !typeMatch(&ConfigResource{}, left, right) {
    41  			return false, MakeError("invalid data type!")
    42  		}
    43  		return left.(*ConfigResource) == right.(*ConfigResource), nil
    44  	default:
    45  		return false, MakeError("not supported config type to compare")
    46  	}
    47  }
    48  
    49  func withOption(option CfgOption, data interface{}) CfgOption {
    50  	op := option
    51  	switch option.Type {
    52  	case CfgRawType:
    53  		op.RawData = data.([]byte)
    54  	case CfgLocalType:
    55  		op.Path = data.(string)
    56  	case CfgCmType, CfgTplType:
    57  		op.ConfigResource = data.(*ConfigResource)
    58  	}
    59  	return op
    60  }
    61  
    62  func typeMatch(expected interface{}, values ...interface{}) bool {
    63  	matcher := newMatcherWithType(expected)
    64  	for _, v := range values {
    65  		if ok, err := matcher.match(v); !ok || err != nil {
    66  			return false
    67  		}
    68  	}
    69  	return true
    70  }
    71  
    72  type typeMatcher struct {
    73  	expected interface{}
    74  }
    75  
    76  func newMatcherWithType(expected interface{}) typeMatcher {
    77  	return typeMatcher{
    78  		expected: expected,
    79  	}
    80  }
    81  
    82  func (matcher *typeMatcher) match(actual interface{}) (success bool, err error) {
    83  	switch {
    84  	case actual == nil && matcher.expected == nil:
    85  		return false, MakeError("type is <nil> to <nil>.")
    86  	case matcher.expected == nil:
    87  		return false, MakeError("expected type is <nil>.")
    88  	case actual == nil:
    89  		return false, nil
    90  	}
    91  
    92  	actualType := reflect.TypeOf(actual)
    93  	expectedType := reflect.TypeOf(matcher.expected)
    94  	return actualType.AssignableTo(expectedType), nil
    95  }