如何分离csv文件数据并将其写入不同的文件？

Question

我的输入是一个包含以下数据的 csv 文件

ID、姓名、联系方式、公司名称、部门 101，天使，0000000000，XYZ组织，HR 102，梅琳达，0000000000，XYZ 组织，帐户 103，杰克，0000000000，XYZ组织，HR 104、罗恩，0000000000，XYZ组织，HR 105，玛丽，0000000000，XYZ 组织，帐户 106，伊娃，0000000000，XYZ 组织，销售 107，内特，0000000000，XYZ 组织，销售

根据部门名称，我想将记录写入不同的文件，如下所示

人力资源档案 101，天使，0000000000，XYZ组织，HR 103，杰克，0000000000，XYZ组织，HR 104，罗恩，0000000000，XYZ 组织，HR

账户档案 102，梅琳达，0000000000，XYZ 组织，帐户 105，玛丽，0000000000，XYZ 组织，帐户

如何根据部门名称将数据隔离并写入不同的文件？

Answer 1

使用 groupBy() 按部门分组，然后 pluck() 转换为易于在 foreach 范围内迭代的数组，您可以在其中写入每个文件。

%dw 2.0
output application/java
---
payload groupBy($.Department) pluck {department:$$, records:$}

输出（为清楚起见，为 JSON，应为 Java）

[
  {
    "department": "HR ",
    "records": [
      {
        "ID": "101",
        "Name": "Angel",
        "ContactNo": "0000000000",
        "CompName": "XYZ Org",
        "Department": "HR "
      },
      {
        "ID": "104",
        "Name": "Ron",
        "ContactNo": "0000000000",
        "CompName": "XYZ Org",
        "Department": "HR "
      }
    ]
  },
  {
    "department": "Accounts ",
    "records": [
      {
        "ID": "102",
        "Name": "Melinda",
        "ContactNo": "0000000000",
        "CompName": "XYZ Org",
        "Department": "Accounts "
      },
      {
        "ID": "105",
        "Name": "Marie",
        "ContactNo": "0000000000",
        "CompName": "XYZ Org",
        "Department": "Accounts "
      }
    ]
  },
  {
    "department": "HR",
    "records": [
      {
        "ID": "103",
        "Name": "Jack",
        "ContactNo": "0000000000",
        "CompName": "XYZ Org",
        "Department": "HR"
      }
    ]
  },
  {
    "department": "Sales",
    "records": [
      {
        "ID": "106",
        "Name": "Eva",
        "ContactNo": "0000000000",
        "CompName": "XYZ Org",
        "Department": "Sales"
      },
      {
        "ID": "107",
        "Name": "Nate",
        "ContactNo": "0000000000",
        "CompName": "XYZ Org",
        "Department": "Sales"
      }
    ]
  }
]