CODEWITHSUNDEEP
groovy
rahul
rahul

Reputation: 586

In groovy getting java.lang.NullPointerException while JSONPATH lookup

In java jsonpath using jayway we can suppress the exception while jsonpath lookup but is there any similar configuration available in groovy for jsonpath lookup.

Like for example:

import groovy.json.*;

def jsonSlurper = new JsonSlurper()
def object = jsonSlurper.parseText('{"test":{"test1":{"test2":{"test3":"1"}}}}')
print(object["test"]["test8"]["test9"]["d"])

So, as expected it will throw null pointer exception so, is there any way where we can configure to suppress exception and return null if it doesn't exist.

Upvotes: 1

Views: 715

Answers (1)

injecteer
injecteer

Reputation: 20699

In groovy 3 you can apply null-safe operator also on bracketed elements:

print object?["test"]?["test8"]?["test9"]?["d"]

In groovy 2 and below you can use the getAt() to do safe-indexing:

print object?.getAt("test")?.getAt("test8")?.getAt("test9")?.getAt("d")

Upvotes: 4

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