{"id":24652334,"url":"https://github.com/kawasima/websocket-classloader","last_synced_at":"2025-06-19T07:04:28.645Z","repository":{"id":14752455,"uuid":"17473671","full_name":"kawasima/websocket-classloader","owner":"kawasima","description":"Load remote java classes via 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ClassLoader loading remote java class via WebSocket.\n[![Build Status](https://travis-ci.org/kawasima/websocket-classloader.png?branch=master)](https://travis-ci.org/kawasima/websocket-classloader)\n\n## コンセプト\n\n複数台のマシンで分散処理を行うにあたって、面倒なのはアプリケーションの配布です。例えばたくさんのJUnitのテストを、複数台のマシンで実行したい。ふつうにやろうとすると、テストの含まれるjarファイルと依存するjarを全て配布しなくてはなりませんが、これは結構な手間です。\n\nそんなときに、分散クライアントとなるマシンには必要最低限のクラスを、ランタイムにロードできれば比較的高速に、かつ、いつでも最新のアプリケーションを動かすことができます。\n\nwebsocket-classloaderは、そんな分散マシン向けのクラスローダーです。クラスロード要求に応じて、CrassProviderサーバに要求を転送し、CrassProviderサーバではクラスのバイナリーを探しだしてレスポンス返します。\n\n\n## Usage\n\nClassProviderをJSR―356のコンテナ(undertow, tomcatなど)にデプロイします。\n\n```java\nnew ClassProvider().start(port);\n```\n\nクライアント側は、ClassProviderのアドレスを指定して、WebSocketClassLoaderを作ります。\n\n```java\nClassLoader cl = new WebSocketClassLoader(\"ws://class-provider-host:port\");\nClass\u003c?\u003e hogeClass = cl.loadClass(\"org.example.HogeHoge\", true);\n```\n\n## アーキテクチャ\n\n                class binary format\n            +-----------------------------------------------+\n            v                                               |\n    +----------------------+  loadClass request     +---------------+\n    |   Thin Application   |  (WebSocket)           | ClassProvider |\n    | WebSocketClassLoader | ---------------------\u003e |               |\n    +----------------------+                        +---------------+\n\n\nWebSocketClassLoaderを使う側のアプリケーション(クライアントと呼ぶ)から、ClassProvierへWebSocketのコネクションを作成し、クライアントからloadClassが呼ばれたときに、ClassProviderへリクエストを飛ばし、クラスのバイナリフォーマットが帰ってきます。\n\nデータのシリアライズにはFressianを使っています。\n\n## License\n\nApache License 2.0\n(c) 2014-2017 Yoshitaka Kawashima\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkawasima%2Fwebsocket-classloader","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fkawasima%2Fwebsocket-classloader","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkawasima%2Fwebsocket-classloader/lists"}