Accessing JSON file and updating it using groovy

Summary:

Hi guys,

Okay, here is what I have to do. I need to maintain JSON array in a file and modify it accordingly based on requirement. So, if it is possible, can you guys please guide how to proceed.

Content (required):

I need to maintain the following JSON:

"Company1"

{

"Jan"{

"Day01": "Freeze",

"Day02": "Freeze",

}

"Feb"{

"Day01": "Freeze",

"Day02": "Freeze",

}

}

The above JSON is a sample. So, just imagine there are 8 companies and for each company we have 12 periods. For each period I need to maintain "Freeze" or "Unfreeze" for 31 days.

Let us consider that when a user selects an action menu by selecting "Company1", "Jan" and "Day01" in the page of a form, the JSON should be updated like below in the file,