Apache nifi 嵌套对象的颠簸变换

我希望o/p是这样的

1） 添加一个常量新字段“new_addition” 2） 将嵌套值“custom_tag.app_name”复制到上一级。 3） 将嵌套值“custom_tag.total_time”复制到上一级，但属性名称不同于“time_to_finish”

我无法找出这个的震动规格

    [
  {
    "cluster_id": "0125-175512-node489",
    "custom_tag": {
      "app_name": "testing1",
      "total_time": 32
    }
  },
  {
    "cluster_id": "0125-175512-node489",
    "custom_tag": {
      "app_name": "testing2",
      "total_time": 34
    }
  }
]

---

确保您在流文件中添加了具有值的新属性

试试这个震动规范：

    [
  {
    "cluster_id": "0125-175512-node489",
    "app_name": "testing1",
    "new_addition": "new const value",
    "time_to_finish": 32,
    "custom_tag": {
      "app_name": "testing1",
      "total_time": 32
    }
  },
  {
    "cluster_id": "0125-175512-node489",
    "app_name": "testing2",
    "new_addition": "new const value",
    "time_to_finish": 34,
    "custom_tag": {
      "app_name": "testing2",
      "total_time": 34
    }
  }
]

[{
"operation": "shift",
"spec": {
    "*": "&", // get all elements
    "custom_tag": {
        "app_name": "app_name", //copy app_name to one level up
        "total_time": "time_to_finish", //copy total_time to one level up and change name.
        "@": "&" //get all the struct elements as is
    }
}
}, {
    "operation": "default",
    "spec": {
        "new_addition": "${new_addition}" //get the attribute value and add new_addition element to top level.
    }
}]

输出：

    [
  {
    "cluster_id": "0125-175512-node489",
    "app_name": "testing1",
    "new_addition": "new const value",
    "time_to_finish": 32,
    "custom_tag": {
      "app_name": "testing1",
      "total_time": 32
    }
  },
  {
    "cluster_id": "0125-175512-node489",
    "app_name": "testing2",
    "new_addition": "new const value",
    "time_to_finish": 34,
    "custom_tag": {
      "app_name": "testing2",
      "total_time": 34
    }
  }
]

[{
"operation": "shift",
"spec": {
    "*": "&", // get all elements
    "custom_tag": {
        "app_name": "app_name", //copy app_name to one level up
        "total_time": "time_to_finish", //copy total_time to one level up and change name.
        "@": "&" //get all the struct elements as is
    }
}
}, {
    "operation": "default",
    "spec": {
        "new_addition": "${new_addition}" //get the attribute value and add new_addition element to top level.
    }
}]

颠簸变换处理器配置：

    [
  {
    "cluster_id": "0125-175512-node489",
    "app_name": "testing1",
    "new_addition": "new const value",
    "time_to_finish": 32,
    "custom_tag": {
      "app_name": "testing1",
      "total_time": 32
    }
  },
  {
    "cluster_id": "0125-175512-node489",
    "app_name": "testing2",
    "new_addition": "new const value",
    "time_to_finish": 34,
    "custom_tag": {
      "app_name": "testing2",
      "total_time": 34
    }
  }
]

[{
"operation": "shift",
"spec": {
    "*": "&", // get all elements
    "custom_tag": {
        "app_name": "app_name", //copy app_name to one level up
        "total_time": "time_to_finish", //copy total_time to one level up and change name.
        "@": "&" //get all the struct elements as is
    }
}
}, {
    "operation": "default",
    "spec": {
        "new_addition": "${new_addition}" //get the attribute value and add new_addition element to top level.
    }
}]

验证：

    [
  {
    "cluster_id": "0125-175512-node489",
    "app_name": "testing1",
    "new_addition": "new const value",
    "time_to_finish": 32,
    "custom_tag": {
      "app_name": "testing1",
      "total_time": 32
    }
  },
  {
    "cluster_id": "0125-175512-node489",
    "app_name": "testing2",
    "new_addition": "new const value",
    "time_to_finish": 34,
    "custom_tag": {
      "app_name": "testing2",
      "total_time": 34
    }
  }
]

[{
"operation": "shift",
"spec": {
    "*": "&", // get all elements
    "custom_tag": {
        "app_name": "app_name", //copy app_name to one level up
        "total_time": "time_to_finish", //copy total_time to one level up and change name.
        "@": "&" //get all the struct elements as is
    }
}
}, {
    "operation": "default",
    "spec": {
        "new_addition": "${new_addition}" //get the attribute value and add new_addition element to top level.
    }
}]

以下各项工作正常

{
  "cluster_id" : "0125-175512-node489",
  "custom_tag" : {
    "app_name" : "testing2",
    "total_time" : 34
  },
  "app_name" : "testing2",
  "time_to_finish" : 34,
  "new_addition" : "new_addition"
}

---

您好，当输入是单个json元素时，它可以完美地工作。但如果输入是一个数组，它就不起作用。我把它作为一个o/p=>{“0”：{“集群id”：“0125-175512-node489”，“自定义标记”：{“应用程序名称”：“测试1”，“总时间”：32}，“1”：{“集群id”：“0125-175512-node489”，“自定义标记”：{“应用程序名称”：“测试2”，“总时间”：34}，“新添加”：“测试123}