Iterate over the JSON object elements in sling model

I have the following JSON Object

import org.json.JSONObject;

JSONObject jsonObject = new JSONObject("jsonString")

The output of the above jsonObject follows:

{
  "elements": {
    "barType": "bar",
    "website": "website",
    "endDate": "end",
    "fooText": "text",
    "fooDisclaimer": "Disclaimer",
    "type": "type",
    "fooPage": {
      "string": "string",
      "value": [
        {
          "number": "2",
          "pagePath": "/foo/bar/home/selector/extension"
        },
        {
          "number": "5",
          "pagePath": "/foo/bar"
        }
      ]
    },
    "fooTitle": "Title",
    "locations": "locations"
  },
  "items": "items"
}

Now I want to perform following steps:

1. Create a new JSON object

2. iterate over the "elements" node in the above json object (jsonObject)

   • Copy the child elements to the new JSON object if name is barType or names starts with foo, but not fooPage
   • If name = fooPage:
     • iterate over the values to find one where pagePath = currentPageURL add a new property called fooPriority to the new JSON object with the value from the number

Note: currentPageURL = "/foo/bar"

The expected output of new JSON object would be:

{
  "barType": "bar",
  "fooText": "text",
  "fooDisclaimer": "Disclaimer",
  "fooPriority": 5,
  "fooTitle": "Title",
  "locations": "locations"
}

Please help me with the implementation of Java code by using org.json.JSONObject;

Thanks in advance