CODEWITHSUNDEEP
jenkinsgroovyjenkins-pipelinejenkins-groovy
Reese
Reese

Reputation: 449

how to add dynamicity in a variable value in jenkins groovy

i have a json file like the below one..

{
   "env1":{
      "region":{
         "region1":{
            "var1":"test"
         },
         "region2":{
            "var1":"test"
         },
         "region3":{
            "var1":"test"
         }
      }
   },
   "env2":{
      "region":{
         "region1":{
            "var1":"test"
         },
         "region2":{
            "var1":"test"
         },
         "region3":{
            "var1":"test"
         }
      }
   }
}

config_all = readJSON file: "${env.WORKSPACE}/<above-json-name>.json"

my concern is how do i dynamically get the config for different region at runtime.. i want to do something like this based on a variable..

def region = env.getProperty("region")
config = config_all.env2.${region}  << something like this.. but i cannot aceive it..

is there a way to aceive this sort of dynamicity in the varilable value assignment in jenkins groovy.. thanks in advance

Upvotes: 0

Views: 303

Answers (1)

Matthew Schuchard
Matthew Schuchard

Reputation: 28739

If you want to access values in a map with dynamic/variable keys, then you cannot use the object syntax, but rather must use the native syntax for accessing values from keys in a Map with [<key>].

Following this, we update your code snippet like:

config = config_all['env2'][region]

However, based on your JSON, that is probably not going to traverse your data correctly since it is missing the top-level region key and the var1 key. In that case, it would more likely need to be:

config = config_all['env2']['region'][region]['var1']

That will assign the value test to your variable config.

Upvotes: 1

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