July 2024
Beginner to intermediate
272 pages
5h 40m
Japanese
Content preview from アーキテクトの教科書 価値を生むソフトウェアのアーキテクチャ構築
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129
3
この例のパイプラインを図に表すと図3.4.6のようになります。ま
た、各フィルターの処理内容について図3.4.7の表にまとめます。
⹅
図3.4.6
パイプライン（Linux コマンドの例）
ls
コマンド
xargs wc
コマンド
sort
コマンド
grep
コマンド
awk
コマンド
パイプ パイプ パイプ パイプ
⹅
図3.4.7
フィルターの処理内容
フィルター 処理の種類 処理の内容
ls *.java
データ生成
拡張子が.javaのファイルを列挙
して入力データとする
xargs wc -l
データ加工
入力データ各々に対してwc コマ
ンドを適用してファイル行数の
情報を付与する
sort -nr
データ並び替え
ファイル行数の降順で並び替え
を行う
grep -v total
データ除去
wc コマンドは合計の行数（total）
も出力するため、除外する
awk '{print $2" ("$1" lines)"}'
データ出力
データのフォーマットを変換し
て出力する
その他にもパイプラインアーキテクチャの活用例には、関数型プログ
ラミングにおけるストリーム処理、Apache Hadoop
※7
のMapReduce
のようなビッグデータ分散処理基盤、AWS Glue
※8
のようなETLサー
ビスなど、枚挙にいとまがありません。
一方向にデータが流れていき、逐次的に処理を行っていくようなシス
テムにおいては、パイプラインアーキテクチャの採用がふさわしいで
しょう。
マイクロカーネルアーキテクチャ
マイクロカーネルアーキテクチャ
※5
は、アプリケーションの拡張性 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.