数据拼装（格式转换）问题

Question

源数据格式（list）

 {
            "dataPoint": {
                "value": 1.0,
                "timestamp": 1508208780000
            },
            "resourceId": 11150,
            "resourceName": "duanzhenshuai.sunyainfo.com",
            "metricId": 10720,
            "metricName": "Availability"
        },
        {
            "dataPoint": {
                "value": 0.00530464217547344,
                "timestamp": 1508208600000
            },
            "resourceId": 11150,
            "resourceName": "duanzhenshuai.sunyainfo.com",
            "metricId": 10722,
            "metricName": "Transfer"
        },
        {
            "dataPoint": {
                "value": 0.3743428756508957,
                "timestamp": 1508208600000
            },
            "resourceId": 11150,
            "resourceName": "duanzhenshuai.sunyainfo.com",
            "metricId": 10725,
            "metricName": "CpuUsage"
        }

目的数据格式

 "data": {
    "Availability": "1.0",
    "Transfer": "0.00530464217547344",
    "CpuUsage": "0.3743428756508957"
  }

给出java或json的解决方案都可以，目前只能想到if-else或switch-case判断，但这样如果增添字段会非常麻烦？求指点

Answer 1

现在能想到的也是用if判断，怕增加字段的话，那个方法要不就传个String...参数类型，然后根据这个参数来写个通用的if判断。