Apache POI Excel formatter plugin for Embulk

Formats Excel files(xls, xlsx) for other file output plugins.
This plugin uses Apache POI.

• Plugin type: formatter
• Embulk 0.9 or earlier (refer to https://github.com/hishidama/embulk-formatter-excel-poi for 0.10 and later)

• spread_sheet_version: Excel file version. EXCEL97 or EXCEL2007. (string, default: EXCEL2007)
• sheet_name: sheet name. (string, default: Sheet1)
• column_options: see bellow. (hash, default: {})

• data_format: data format of Cell. (string, default: null)

in:
  type: any input plugin type
...
    columns:
    - {name: time,     type: timestamp}
    - {name: purchase, type: timestamp}

out:
  type: file	# any file output plugin type
  path_prefix: /tmp/embulk-example/excel-out/sample_
  file_ext: xls
  formatter:
    type: poi_excel
    spread_sheet_version: EXCEL97
    sheet_name: Sheet1
    column_options:
      time:     {data_format: "yyyy/mm/dd hh:mm:ss"}
      purchase: {data_format: "yyyy/mm/dd"}

The file name, file split or data order are decided by input/output plugin.
If you'd like to process data and output Excel format, I think it's also one way to use Asakusa Framework (Excel Exporter).

$ embulk gem install embulk-formatter-poi_excel

$ ./gradlew package