how to determine whether json is jsonArray or jsonObject

[HimanshuTayal]

Hi All,

I am currently stucked at a point where i need to check whether the given json contains array or not.

Can any one help me on this:

Suppose below is my json:

{

"status":"pass",

"code":200,

"data":{

          "abc":[{

          "a1" : "test1"

          "a2" : "test2"

          "a3" : "test3"

          "a4" : "test4"

          },

          {

          "a1" : "test1"

          "a2" : "test2"

          "a3" : "test3"

          "a4" : "test4"

          }],

          "xyz":{

               "b1":"T1"

               "b2":"T2"

               }

     }

}

def jsonSlurperTU = new JsonSlurper().parseText(TUResponse)

def expected = jsonSlurperTU.data.abc

def expected1 = jsonSlurperTU.data.xyz

i need to check whether xyz is json array or json object as the above json is dummy my json is of 4000 line.

[avidCoder]

From the above JSONs, "abc" is an array and "xyz" is an object. Similarly, "data" is an object.

This is the link where you can verify it :-

https://jsoneditoronline.org/

And below is the link. you can try using code:-

https://stackoverflow.com/questions/9988287/test-if-it-is-jsonobject-or-jsonarray/9988392

[HimanshuTayal]

Hi @avidCoder ,

I know but i want to check this at runtime whether it is jsonarray or jsonobject

[nmrao]

@HimanshuTayal 

You can check if the object is instace of a list as shown below:

assert (jsonSlurperTU.data.abc instanceof List)
assert false == (jsonSlurperTU.data.xyz instanceof List)

[HimanshuTayal · Accepted solution]

Hi @nmrao ,

Thanks for the reply, i will check mentioned solution, however i have done this with below code

boolean isCollectionOrArray(object) {    
    [Collection, Object[]].any { it.isAssignableFrom(object.getClass()) }
}

// some tests
assert isCollectionOrArray([])

For this i imported below library:

import java.lang.Object; 

[nmrao]

No problem. I believe that checking the object instace type is simple. Isn't it?