github.com/siglens/siglens@v0.0.0-20240328180423-f7ce9ae441ed/pkg/utils/jsonutils.go (about)

     1  /*
     2  Copyright 2023.
     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 utils
    18  
    19  import (
    20  	"fmt"
    21  )
    22  
    23  // Flatten takes a map and returns a new one where nested maps are replaced
    24  // by dot-delimited keys.
    25  func Flatten(m map[string]interface{}) map[string]interface{} {
    26  	for k, v := range m {
    27  		switch child := v.(type) {
    28  		case map[string]interface{}:
    29  			nm := Flatten(child)
    30  			for nk, nv := range nm {
    31  				m[k+"."+nk] = nv
    32  			}
    33  			delete(m, k)
    34  			// todo if it is a json array it needs to be formatted correctly
    35  		case []interface{}:
    36  			for idx, val := range child {
    37  				FlattenSingleValue(fmt.Sprintf("%v.%v", k, idx), m, val)
    38  			}
    39  			delete(m, k)
    40  		}
    41  	}
    42  	return m
    43  }
    44  
    45  func FlattenSingleValue(key string, m map[string]interface{}, child interface{}) {
    46  	switch child := child.(type) {
    47  	case map[string]interface{}:
    48  		nm := Flatten(child)
    49  		for nk, nv := range nm {
    50  			m[key+"."+nk] = nv
    51  		}
    52  	case []interface{}:
    53  		for idx, val := range child {
    54  			FlattenSingleValue(fmt.Sprintf("%v.%v", key, idx), m, val)
    55  		}
    56  	default:
    57  		m[key] = child
    58  	}
    59  }