Package com.github.hemantsonu20.json

Class JsonMerge

java.lang.Object
com.github.hemantsonu20.json.JsonMerge
public class JsonMerge extends Object
This class provides methods to merge two json of any nested level into a single json.

  • Constructor Details

    • JsonMerge

      public JsonMerge()

  • Method Details

    • merge

      public static String merge(String srcJsonStr, String targetJsonStr)
      Method to merge two json objects into single json object.

      It merges two json of any nested level into a single json following below logic.

      • When keys are different, both keys with their values will be copied at same level.

      • When keys are same at some level, following table denotes what value will be used.

        Description
        Src / Target JSON Value JSON Array JSON Object
        JSON Value1 Src Src Src
        JSON Array Src2 Merge Src
        JSON Object Src Src Merge3
        • 1 Json Value denotes boolean, number or string value in json.
        • 2 Src denotes Src value will be copied.
        • 3 Merge denotes both Src and Target values will be merged.

      Examples

      Example 1

      Source Json

      
 {
   "name": "json-merge-src"
 }

      Target Json

      
 {
   "name": "json-merge-target"
 }

      Output

      
 {
   "name": "json-merge-src"
 }
      Example 2

      Source Json

      
 {
   "level1": {
     "key1": "SrcValue1"
   }
 }

      Target Json

      
 {
   "level1": {
     "key1": "targetValue1",
     "level2": {
       "key2": "value2"
     }
   }
 }

      Output

      
 {
   "level1": {
     "key1": "SrcValue1",
     "level2": {
       "key2": "value2"
     }
   }
 }
      Parameters:
      srcJsonStr - source json string
      targetJsonStr - target json string
      Returns:
      merged json as a string

    • merge

      public static JsonNode merge(JsonNode srcNode, JsonNode targetNode)

    • merge

      public static ObjectNode merge(ObjectNode srcNode, ObjectNode targetNode)

    • merge

      public static ArrayNode merge(ArrayNode srcNode, ArrayNode targetNode)