[GitHub] [incubator-dolphinscheduler] simon824 commented on issue #2102: [Feature]add custom configuration Feature for datax

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simon824 commented on issue #2102: [Feature]add custom configuration Feature for datax
URL: https://github.com/apache/incubator-dolphinscheduler/issues/2102#issuecomment-597538608
 
 
   I will describe my ideas for implementing this feature.
   As shown below, I want to add a tab page , one page is the current content , and the other page is a text box for custom json configuration. At the same time, a check of the json format is required. 
   
   
   我来详细说明下我的想法，以方便和前端的同学协作完成功能的开发。
   
   ![image](https://user-images.githubusercontent.com/18065113/76399668-f8a6c500-63b9-11ea-9e73-2f95048500e9.png)
   
   如图，我想在红框的位置增加一个 tab 页，一页是当前的内容不变，另一页是文本框，用于用户自定义写json配置，同时需要对json格式做一个校验。两种方式二选一。
   
   ## 入参定义
   
   - 请求参数processDefinitionJson的tasks列表里的params字段的内容增加customConfig，值为0和1（数值类型），当customConfig等于0，为非自定义配置，其他参数没有变化，如下：
   
   ```
   {"tasks":[{"params":
       {"customConfig":0,
        "targetTable":"test",
        "postStatements":[
            "delete from test"
        ],
        "jobSpeedByte":0,
        "jobSpeedRecord":1000,
        "dtType":"MYSQL",
        "datasource":1,
        "dsType":"MYSQL",
        "datatarget":2,
        "sql":"select 1 as test from dual",
        "preStatements":[
            "delete from test"
        ]
      }
   },{...}]}
   
   ```
   
   - 当customConfig为1，为自定义json配置，只需传json字段（字符串类型）其他参数省略，如下：
   
   ```
   {"tasks":[{"params":{
       {
       "customConfig":1,
       "json":"{"job":{"setting":{"speed":{"byte":1048576},"errorLimit":{"record":0,"percentage":0.02}},"content":[{"reader":{"name":"rdbmsreader","parameter":{"username":"xxx","password":"xxx","column":["id","name"],"splitPk":"pk","connection":[{"querySql":["SELECT * from dual"],"jdbcUrl":["jdbc:dm://ip:port/database"]}],"fetchSize":1024,"where":"1 = 1"}},"writer":{"name":"streamwriter","parameter":{"print":true}}}]}}"
   }
   }}]
   },{...}}
   ```
   
   

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