使用 Jolt 变换将平面 json 转换为具有多个数组的嵌套 Json

我正在try 编写一个规范来使用Jolt转换来完成下面的转换.我需要将平面Json转换为嵌套Json

我在将平面JSON转换为嵌套JSON时遇到了一些问题.我已经看了一些例子，但没有更深入地了解上面提到的内容.我需要使用Jolt规范来转换JSON struct .我使用https://jolt-demo.appspot.com来测试以下内容.

Input:

[
  {
    "container_id": "a",
    "carrier_scac": "b",
    "location": "banglore",
    "state": "karnataka",
    "country": "India"
  },
  {
    "container_id": "a",
    "carrier_scac": "b",
    "location": "pune",
    "state": "maharashtra",
    "country": "India"
  },
  {
    "container_id": "c",
    "carrier_scac": "d",
    "location": "dharwad",
    "state": "kan",
    "country": "India"
  },
  {
    "container_id": "c",
    "carrier_scac": "d",
    "location": "hubli",
    "state": "kant",
    "country": "India"
  }
]

Desired Output:

[
  {
    "load": {
      "container_id": "a",
      "carrier_scac": "b",
      "stops": [
        {
          "location": "banglore",
          "state": "karnataka"
        },
        {
          "location": "pune",
          "state": "maharashtra"
        }
      ]
    },
    "containerInfo": {
      "country": "India"
    }
  },
  {
    "load": {
      "container_id": "c",
      "carrier_scac": "d",
      "stops": [
        {
          "location": "dharwad",
          "state": "kan"
        },
        {
          "location": "hubli",
          "state": "kant"
        }
      ]
    },
    "containerInfo": {
      "country": "India"
    }
  }
]

我正在使用的Jolt Spec:

[
  {
    "operation": "shift",
    "spec": {
      "*": {
        "container_id": "@(1,container_id).&",
        "carrier_scac": "@(1,container_id).&",
        "*": "@(1,container_id).stops[&1].&"
      }
    }
  },
  {
    "operation": "modify-overwrite-beta",
    "spec": {
      "*": "=recursivelySquashNulls"
    }
  },
  {
    "operation": "cardinality",
    "spec": {
      "*": {
        "container_id": "ONE",
        "carrier_scac": "ONE"
      }
    }
  },
  {
    "operation": "shift",
    "spec": {
      "*": ""
    }
  }
]