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MessagePack parser plugin for Embulk

Parses files encoded in MessagePack.

Overview

  • Plugin type: parser
  • Guess supported: yes

Configuration

  • row_encoding: type of a row. "array" or "map" (enum, default: map)
  • file_encoding: if a file includes a big array, set "array". Otherwise, if a file includes sequence of rows, set "sequence" (enum, default: sequence)
  • columns: description (schema, required)

Example

seed.yml:

in:
  # here can use any file input plugin type such as file, s3, gcs, etc.
  type: file
  path_prefix: /path/to/file/or/directory
  parser:
    type: msgpack

Command:

$ embulk gem install embulk-parser-msgpack
$ embulk guess -g msgpack seed.yml -o config.yml
$ embulk run config.yml

The guessed config.yml will include column settings:

in:
  type: any file input plugin type
  parser:
    type: msgpack
    row_encoding: map
    file_encoding: sequence
    columns:
    - {index: 0, name: a, type: long}
    - {index: 1, name: b, type: string}

Build

$ ./gradlew gem

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MessagePack parser plugin for Embulk

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