Question

我想使用JoLT规范将对象包装到数组中，以便在NiFi中进一步使用。但是我似乎无法找到解决方案。

假设我有这个json作为输入

{
  "toIndex": [
    {
      "content": [
        {
          "firstName": "maxime",
          "lastName": "g",
          "toArray": {
            "one": "fun",
            "two": "funfun",
            "three": "funfunfun"
          }
        }
      ]
    },
    {
      "content": [
        {
          "firstName": "monica",
          "lastName": "beluci",
          "toArray": {
            "one": "fun",
            "two": "funfun",
            "three": "funfunfun"
          }
        }
      ]
    }
  ]
}

我非常想把它作为输出：

{
  "toIndex": [
    {
      "content": [
        {
          "firstName": "maxime",
          "lastName": "g",
          "toArray": [ {
            "one": "fun",
            "two": "funfun",
            "three": "funfunfun"
          }]
        }
      ]
    },
    {
      "content": [
        {
          "firstName": "monica",
          "lastName": "beluci",
          "toArray": [{
            "one": "fun",
            "two": "funfun",
            "three": "funfunfun"
          }]
        }
      ]
    }
  ]
}

不幸的是我得到了这个输出：

{
  "toIndex" : [ {
    "content" : [ {
      "firstName" : "maxime",
      "lastName" : "g",
      "toArray" : {
        "one" : "fun",
        "two" : "funfun",
        "three" : "funfunfun"
      }
    }, {
      "toArray" : [ {
        "one" : "fun",
        "two" : "funfun",
        "three" : "funfunfun"
      } ]
    }, {
      "firstName" : "monica",
      "lastName" : "beluci",
      "toArray" : {
        "one" : "fun",
        "two" : "funfun",
        "three" : "funfunfun"
      }
    }, {
      "toArray" : [ {
        "one" : "fun",
        "two" : "funfun",
        "three" : "funfunfun"
      } ]
    } ]
  } ]
}

我的（糟糕的）规格是这样的：

[{
    "operation": "shift",
    "spec": {
      "toIndex": {
        "*": {
          "content": {
            "*": {
              "@": "toIndex[&1].content[]", // passthru
              "toArray": "toIndex[&1].content[].toArray[]"
            }
          }
        }
      }
    }
}
]

如果你们中的一位友善地指出我在做什么错...

谢谢。

Answer 1

查看基数操作是否是您要查找的内容：

[
  {
    "operation": "cardinality",
    "spec": {
      "toIndex": {
        "*": {
          "content": {
            "*": {
              "toArray": "MANY"
            }
          }
        }
      }
    }
  }
]

输出

{
  "toIndex" : [ {
    "content" : [ {
      "firstName" : "maxime",
      "lastName" : "g",
      "toArray" : [ {
        "one" : "fun",
        "two" : "funfun",
        "three" : "funfunfun"
      } ]
    } ]
  }, {
    "content" : [ {
      "firstName" : "monica",
      "lastName" : "beluci",
      "toArray" : [ {
        "one" : "fun",
        "two" : "funfun",
        "three" : "funfunfun"
      } ]
    } ]
  } ]
}

将对象转换为包含对象的数组

1 个答案: