JSON 到 JSON 转换器

发布于07月02日

I got a scenario.

Required input and output are JSON.

// Input
{
  "OldObject": {
    "Time": 1351160457922,
    "Name": "OName",
    "quantity": 100,
    "price": 10
  }
}


// Output
{
  "NewObject": {
    "Time": 1351160457922,
    "Title": "OName",
    "quantity": 100
  }
}

I need some transformation code or preferably xslt type language to transform json from one format to another. This transformer also need to be fast as transformation will be done on the fly.

Edit
I don't have the definition of the INPUT object received and it might change at run time. but I can use class for OUTPUT object if needed. I have tried to do this as json -> xml -> xslt -> xml -> json, but approximately 1000 objects are received per second at this end and this process might incur overhead.
I can not also use JavaScript as myApp is simple windows based java application and using JavaScript might cause overhead.

推荐答案

试试JOLT.它是一个用Java编写的JSON到JSON转换库.它是在一个将大量JSON从ElasticSearch"后端"转换为前端api的项目上创建的.

For the JSON transform you have listed in your problem, the Jolt "shift" spec would be :

// Jolt "shift" spec
{
    "OldObject": {
        "Time": "NewObject.Time",   
        "Name": "NewObject.Title", // if the input has "OldObject.Name", copy it's value
                                   // to "NewObject.Title
        "quantity": "NewObject.quantity"
    }
}

JSON 到 JSON 转换器

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