使用 Jolt 转义 json

Question

我们如何将提供的输入转换为所需的输出？

转换涉及转义字符串并将属性转换为有效的 JSON 格式。但是，“attributes”键中的任何嵌套属性（例如“attr11”）应保留为字符串，而不是转换为 JSON。

输入.json

{
  "id": 67046492,
  "owner": "John Doe",
  "version": 1,
  "lineItems": [
    {
      "id": 219,
      "attributes": "{}"
    },
    {
      "id": 220,
      "attributes": "{\"attr1\":{\"value\":\"7.0\",\"actionCode\":\"ADD\"},\"attr2\":{\"value\":\"gdajdas\",\"actionCode\":\"ADD\"},\"attr3\":{\"value\":\"Y\",\"actionCode\":\"ADD\"},\"attr4\":{\"actionCode\":\"ADD\"},\"attr5\":{\"value\":\"2\",\"actionCode\":\"ADD\"},\"attr6\":{\"value\":\"jjj\",\"actionCode\":\"ADD\"},\"attr7\":{\"value\":\"N\",\"actionCode\":\"ADD\"},\"attr8\":{\"value\":\"jwidhf\",\"actionCode\":\"ADD\"},\"attr9\":{\"value\":\"kncskc\",\"actionCode\":\"ADD\"},\"attr10\":{\"value\":\"2\",\"actionCode\":\"ADD\"},\"attr11\":{\"value\":\"{\\\"key1\\\":\\\"2\\\",\\\"key2\\\":\\\"7.0\\\",\\\"key3\\\":\\\"3.5\\\",\\\"key4\\\":\\\"\\\"}\",\"actionCode\":\"ADD\"},\"attr12\":{\"value\":\"3.5\",\"actionCode\":\"ADD\"}}"
    },
    {
      "id": 221,
      "attributes": "{\"attr1\":{\"value\":\"7.0\",\"actionCode\":\"ADD\"},\"attr2\":{\"value\":\"gdajdas\",\"actionCode\":\"ADD\"},\"attr3\":{\"value\":\"Y\",\"actionCode\":\"ADD\"},\"attr4\":{\"actionCode\":\"ADD\"},\"attr5\":{\"value\":\"2\",\"actionCode\":\"ADD\"},\"attr6\":{\"value\":\"jjj\",\"actionCode\":\"ADD\"},\"attr7\":{\"value\":\"N\",\"actionCode\":\"ADD\"},\"attr8\":{\"value\":\"jwidhf\",\"actionCode\":\"ADD\"},\"attr9\":{\"value\":\"kncskc\",\"actionCode\":\"ADD\"},\"attr10\":{\"value\":\"2\",\"actionCode\":\"ADD\"},\"attr11\":{\"value\":\"{\\\"key1\\\":\\\"2\\\",\\\"key2\\\":\\\"7.0\\\",\\\"key3\\\":\\\"3.5\\\",\\\"key4\\\":\\\"\\\"}\",\"actionCode\":\"ADD\"},\"attr12\":{\"value\":\"3.5\",\"actionCode\":\"ADD\"}}"
    }
  ]
}

预期.json

{
    "id": 67046492,
    "owner": "John Doe",
    "version": 1,
    "lineItems": [
        {
            "id": 219,
            "attributes": "{}"
        },
        {
            "id": 220,
            "attributes": {
                "attr1": {
                    "value": "7.0",
                    "actionCode": "ADD"
                },
                "attr2": {
                    "value": "gdajdas",
                    "actionCode": "ADD"
                },
                "attr3": {
                    "value": "Y",
                    "actionCode": "ADD"
                },
                "attr4": {
                    "actionCode": "ADD"
                },
                "attr5": {
                    "value": "2",
                    "actionCode": "ADD"
                },
                "attr6": {
                    "value": "jjj",
                    "actionCode": "ADD"
                },
                "attr7": {
                    "value": "N",
                    "actionCode": "ADD"
                },
                "attr8": {
                    "value": "jwidhf",
                    "actionCode": "ADD"
                },
                "attr9": {
                    "value": "kncskc",
                    "actionCode": "ADD"
                },
                "attr10": {
                    "value": "2",
                    "actionCode": "ADD"
                },
                "attr11": {
                    "value": "{\"key1\":\"2\",\"key2\":\"7.0\",\"key3\":\"3.5\",\"key4\":\"\"}",
                    "actionCode": "ADD"
                },
                "attr12": {
                    "value": "3.5",
                    "actionCode": "ADD"
                }
            }
        },
        {
            "id": 221,
            "attributes": {
                "attr1": {
                    "value": "7.0",
                    "actionCode": "ADD"
                },
                "attr2": {
                    "value": "gdajdas",
                    "actionCode": "ADD"
                },
                "attr3": {
                    "value": "Y",
                    "actionCode": "ADD"
                },
                "attr4": {
                    "actionCode": "ADD"
                },
                "attr5": {
                    "value": "2",
                    "actionCode": "ADD"
                },
                "attr6": {
                    "value": "jjj",
                    "actionCode": "ADD"
                },
                "attr7": {
                    "value": "N",
                    "actionCode": "ADD"
                },
                "attr8": {
                    "value": "jwidhf",
                    "actionCode": "ADD"
                },
                "attr9": {
                    "value": "kncskc",
                    "actionCode": "ADD"
                },
                "attr10": {
                    "value": "2",
                    "actionCode": "ADD"
                },
                "attr11": {
                    "value": "{\"key1\":\"2\",\"key2\":\"7.0\",\"key3\":\"3.5\",\"key4\":\"\"}",
                    "actionCode": "ADD"
                },
                "attr12": {
                    "value": "3.5",
                    "actionCode": "ADD"
                }
            }
        }
    ]
}

Answer 1

我知道这篇文章有点旧，你可能已经从这篇文章中继续前进，但我刚刚遇到了一种名为 jslt 的新 json 转换语言，如果你使用的是 1.19 及更高版本，它恰好在 ApacheNifi 中有一个名为 JSTLTransformJSON 的处理器。花了一些时间学习这门语言，我发现它实际上可以解决 jolt 无法解决的问题。其中之一是使用 from-json 函数的这个问题，规范将如下所示：

{
  "id":.id,
  "owner":.owner,
  "version":.version,
  "lineItems":[for(.lineItems) { "id":.id,"attributes":from-json(.attributes) }]
 }

实际上，如果您不关心顺序，规格可以更短：

{


  "lineItems":[for(.lineItems) { "id":.id,"attributes":from-json(.attributes) }],
 *:.
 }

它将给出您正在寻找的内容（您可以尝试这里）：

{
  "id" : 67046492,
  "owner" : "John Doe",
  "version" : 1,
  "lineItems" : [ {
    "id" : 219
  }, {
    "id" : 220,
    "attributes" : {
      "attr1" : {
        "value" : "7.0",
        "actionCode" : "ADD"
      },
      "attr2" : {
        "value" : "gdajdas",
        "actionCode" : "ADD"
      },
      "attr3" : {
        "value" : "Y",
        "actionCode" : "ADD"
      },
      "attr4" : {
        "actionCode" : "ADD"
      },
      "attr5" : {
        "value" : "2",
        "actionCode" : "ADD"
      },
      "attr6" : {
        "value" : "jjj",
        "actionCode" : "ADD"
      },
      "attr7" : {
        "value" : "N",
        "actionCode" : "ADD"
      },
      "attr8" : {
        "value" : "jwidhf",
        "actionCode" : "ADD"
      },
      "attr9" : {
        "value" : "kncskc",
        "actionCode" : "ADD"
      },
      "attr10" : {
        "value" : "2",
        "actionCode" : "ADD"
      },
      "attr11" : {
        "value" : "{\"key1\":\"2\",\"key2\":\"7.0\",\"key3\":\"3.5\",\"key4\":\"\"}",
        "actionCode" : "ADD"
      },
      "attr12" : {
        "value" : "3.5",
        "actionCode" : "ADD"
      }
    }
  }, {
    "id" : 221,
    "attributes" : {
      "attr1" : {
        "value" : "7.0",
        "actionCode" : "ADD"
      },
      "attr2" : {
        "value" : "gdajdas",
        "actionCode" : "ADD"
      },
      "attr3" : {
        "value" : "Y",
        "actionCode" : "ADD"
      },
      "attr4" : {
        "actionCode" : "ADD"
      },
      "attr5" : {
        "value" : "2",
        "actionCode" : "ADD"
      },
      "attr6" : {
        "value" : "jjj",
        "actionCode" : "ADD"
      },
      "attr7" : {
        "value" : "N",
        "actionCode" : "ADD"
      },
      "attr8" : {
        "value" : "jwidhf",
        "actionCode" : "ADD"
      },
      "attr9" : {
        "value" : "kncskc",
        "actionCode" : "ADD"
      },
      "attr10" : {
        "value" : "2",
        "actionCode" : "ADD"
      },
      "attr11" : {
        "value" : "{\"key1\":\"2\",\"key2\":\"7.0\",\"key3\":\"3.5\",\"key4\":\"\"}",
        "actionCode" : "ADD"
      },
      "attr12" : {
        "value" : "3.5",
        "actionCode" : "ADD"
      }
    }
  } ]
}

希望这能帮助将来遇到同样问题的人。