github.com/siglens/siglens@v0.0.0-20240328180423-f7ce9ae441ed/pkg/virtualtable/mappings.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 virtualtable
    18  
    19  import (
    20  	"encoding/json"
    21  	"strings"
    22  
    23  	log "github.com/sirupsen/logrus"
    24  
    25  	"github.com/siglens/siglens/pkg/config"
    26  	"github.com/siglens/siglens/pkg/utils"
    27  )
    28  
    29  func createMappingFromEvent(incomingBody *string, indexName *string) (error, string) {
    30  	jsonSource := make(map[string]interface{})
    31  	decoder := json.NewDecoder(strings.NewReader(*incomingBody))
    32  	decoder.UseNumber()
    33  	err := decoder.Decode(&jsonSource)
    34  	indexToMapping := make(map[string]interface{})
    35  	m := make(map[string]interface{})
    36  	if err != nil {
    37  		log.Errorf("createMappingFromEvent: failed to decode json event, err=%v", err)
    38  		return err, ""
    39  	}
    40  	flat_json := utils.Flatten(jsonSource)
    41  	for key, val := range flat_json {
    42  
    43  		if val == nil {
    44  			continue
    45  		}
    46  
    47  		switch val := val.(type) {
    48  		case string:
    49  			if val == config.GetTimeStampKey() {
    50  				m[key] = map[string]interface{}{
    51  					"type": "date"}
    52  			} else {
    53  				m[key] = map[string]interface{}{
    54  					"type": "string"}
    55  			}
    56  
    57  		case json.Number:
    58  			m[key] = map[string]interface{}{
    59  				"type": "number"}
    60  
    61  		case bool:
    62  			m[key] = map[string]interface{}{
    63  				"type": "bool"}
    64  
    65  		default:
    66  			log.Errorf("createMappingFromEvent: dont know how to convert type=%T for colName=%v", val, key)
    67  		}
    68  	}
    69  	indexToMapping[*indexName] = map[string]interface{}{
    70  		"mappings": m}
    71  	JsonBody, err := json.Marshal(indexToMapping)
    72  	if err != nil {
    73  		log.Errorf("createMappingFromEvent: cannot Marshal the data, err=%v", err)
    74  		return err, ""
    75  	}
    76  	return nil, string(JsonBody)
    77  }
    78  
    79  func AddMappingFromADoc(indexName *string, incomingBody *string, orgid uint64) error {
    80  	err, jsonBody := createMappingFromEvent(incomingBody, indexName)
    81  	if err != nil {
    82  		log.Errorf("AddMappingFromADoc: cannot create mapping from the event with indexName=%v, err=%v", indexName, err)
    83  		return err
    84  	}
    85  	return AddMapping(indexName, &jsonBody, orgid)
    86  }