JSON 反规范化需要 Jolt 规范

Question

我有以下格式的 json（不仅限于本例中的两个文档，可能还有很多很多）：

[{
  "ownerId": "XTV7I728",
  "vehicleId": "999",
  "engineId": "1",
  "engineName": "Standard Engine",
  "engineHp": 300
},
{
  "ownerId": "XTV7I728",
  "vehicleId": "999",
  "engineId": "2",
  "engineName": "Custom Engine",
  "engineHp": 450
}]

我想基本上 "denormalize" 多个这样的 json 文档到一个 json 文档中，如下所示：

[{
  "ownerId": "XTV7I728",
  "vehicleId": "999",
  "engines": [
    {
      "engineId": "1", 
      "engineName": "Standard Engine",
      "engineHp": 300
    },
    {
      "engineId": "2",
      "engineName": "Custom Engine",
      "engineHp": 450
    }
  ]
}]

还想补充一点

[{
  "ownerId": "XTV7I728",
  "vehicleId": "999",
  "engineId": "1",
  "engineName": "Standard Engine",
  "engineHp": 300
},
{
  "ownerId": "XTV7I728",
  "vehicleId": "999",
  "engineId": "2",
  "engineName": "Custom Engine",
  "engineHp": 450
},
{
  "ownerId": "TY789021",
  "vehicleId": "999",
  "engineId": "1",
  "engineName": "Standard Engine",
  "engineHp": 300
}]

应转换为：

[{
  "ownerId": "XTV7I728",
  "vehicleId": "999",
  "engines": [
    {
      "engineId": "1", 
      "engineName": "Standard Engine",
      "engineHp": 300
    },
    {
      "engineId": "2",
      "engineName": "Custom Engine",
      "engineHp": 450
    }
  ]
},
{
  "ownerId": "TY789021",
  "vehicleId": "999",
  "engines": [
    {
      "engineId": "1", 
      "engineName": "Standard Engine",
      "engineHp": 300
    }
  ]
}]

到目前为止，我对 Jolt 的有限理解使我相信这种转变是可能的，但目前还不清楚如何从提供的文档中进行转换。非常感谢任何有关 Jolt 规范的帮助！！

Answer 1

问题被重复发布。

在这里回答：https://github.com/bazaarvoice/jolt/issues/359

JSON 反规范化需要 Jolt 规范

Jolt Spec needed for JSON denormalization

json

transformation

jolt