Faker组件

组件说明

根据每列提供的Data Faker表达式生成模拟数据。

计算引擎

flink

有界性

count属性设置了便是有界的，否则为无界流。

组件分组

common

端口

Inport：None

outport：默认端口

组件属性

名称	展示名称	默认值	允许值	是否必填	描述	例子
schema	Schema	“”	无	是	schema	[{"filedName":"name","filedType":"STRING","expression":"<superhero.name>","comment":"姓名"},{"filedName":"power","filedType":"STRING","expression":"<superhero.power>","nullRate":0.5},{"filedName":"age","filedType":"INT","expression":"<number.numberBetween ''0'',''1000''>"},{"filedName":"timeField","computedColumnExpression":"PROCTIME()"},{"filedName":"timestamp1","filedType":"TIMESTAMP(3)","expression":"<date.past ''15'',''SECONDS''>"},{"filedName":"timestamp2","filedType":"TIMESTAMP(3)","expression":"<date.past ''15'',''5'',''SECONDS''>"},{"filedName":"timestamp3","filedType":"TIMESTAMP(3)","expression":"<date.future ''15'',''5'',''SECONDS''>"},{"filedName":"time","filedType":"TIME","expression":"<time.future ''15'',''5'',''SECONDS''>"},{"filedName":"date1","filedType":"DATE","expression":"<date.birthday>"},{"filedName":"date2","filedType":"DATE","expression":"<date.birthday ''1'',''100''>"},{"filedName":"order_status","filedType":"STRING","expression":"<Options.option ''RECEIVED'',''SHIPPED'',''CANCELLED'')>"}]
count	Count	“”	无	否	The number of rows to produce. If this is options is set, the source is bounded otherwise it is unbounded and runs indefinitely.。	10
ratio	Ratio	10000	无	否	The maximum rate at which the source produces records.。	10

字段规则描述

flink-faker/README.md 在 master ·knaufk/flink-faker --- flink-faker/README.md at master · knaufk/flink-faker (github.com)

All providers - Datafaker

参数	默认值	描述
fields..expression	None	The Data Faker expression to generate the values for this field.
fields..null-rate	0.0	Fraction of rows for which this field is null
fields..length	1	Size of array, map or multiset

注：字段expression使用Data Faker expression,但是需要将格式进行转换，如

#{superhero.name}需要写成<superhero.name>,即将#{}替换为<>。这是为了避免sql注入和mytaties语法冲突。

###示例配置

{
  "flow": {
    "name": "FakerTest",
    "uuid": "1234",
    "stops": [
      {
        "uuid": "0000",
        "name": "Faker",
        "bundle": "cn.piflow.bundle.flink.common.Faker",
        "properties": {
          "count": "100",
          "ratio": "5",
          "schema": [
            {
              "filedName": "name",
              "filedType": "STRING",
              "expression": "<superhero.name>",
              "comment": "姓名"
            },
            {
              "filedName": "power",
              "filedType": "STRING",
              "expression": "<superhero.power>",
              "nullRate": 0.5
            },
            {
              "filedName": "age",
              "filedType": "INT",
              "expression": "<number.numberBetween ''0'',''1000''>"
            },
            {
              "filedName": "timeField",
              "computedColumnExpression": "PROCTIME()"
            },
            {
              "filedName": "timestamp1",
              "filedType": "TIMESTAMP(3)",
              "expression": "<date.past ''15'',''SECONDS''>"
            },
            {
              "filedName": "timestamp2",
              "filedType": "TIMESTAMP(3)",
              "expression": "<date.past ''15'',''5'',''SECONDS''>"
            },
            {
              "filedName": "timestamp3",
              "filedType": "TIMESTAMP(3)",
              "expression": "<date.future ''15'',''5'',''SECONDS''>"
            },
            {
              "filedName": "time",
              "filedType": "TIME",
              "expression": "<time.future ''15'',''5'',''SECONDS''>"
            },
            {
              "filedName": "date1",
              "filedType": "DATE",
              "expression": "<date.birthday>"
            },
            {
              "filedName": "date2",
              "filedType": "DATE",
              "expression": "<date.birthday ''1'',''100''>"
            },
            {
              "filedName": "order_status",
              "filedType": "STRING",
              "expression": "<Options.option ''RECEIVED'',''SHIPPED'',''CANCELLED'')>"
            }
          ]
        }
      },
      {
        "uuid": "2222",
        "name": "ShowData1",
        "bundle": "cn.piflow.bundle.flink.common.ShowData",
        "properties": {
          "showNumber": "100"
        }
      }
    ],
    "paths": [
      {
        "from": "Faker",
        "outport": "",
        "inport": "",
        "to": "ShowData1"
      }
    ]
  }
}

示例演示