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Simplicity meets Scalability(JavaScript on Java Servers)
Ing. Rolando Santamaría MasóSoftware Architect at Innotrade GmbHHerzogenrath, Germany
Code.Talks Conference 2015September 29, 2015
Dammtordamm 1, 20354 Hamburg
Who am I?
Rolando Santamaría Masó - Simplicity meets Scalability (JavaScript on Java Servers) - 2
• Software developer and architect • Started in the PHP world ;)
• jWebSocket framework core team from 2010 • Java, JavaScript• HTTP - WebSockets• High performance I/O• APIs
• Informatic Sciences Engineer (UCI, Cuba)• Software Architect at Innotrade GmbH from 2014
Today's session
• Agenda:• Java and JavaScript in 2015.
• High Performance Clusters with jWebSocket.
• Creating JavaScript applications with jWebSocket (Scripting plug-in):
- General concepts.- Getting started.
- The notebook app demo.
• Questions and suggestions.
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Java and JavaScript in 2015
Java on TIOBE Indexhttp://www.tiobe.com/index.php/content/paperinfo/tpci/index.html (September 2015)
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Java and JavaScript in 2015
Java on TIOBE Indexhttp://www.tiobe.com/index.php/content/paperinfo/tpci/index.html (September 2015)
Ebay, Amazon, Google, Netflix, Linkedin
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Java and JavaScript in 2015 (Nashorn)
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Java and JavaScript in 2015 (Nashorn)
Must used JavaScript engines for the JVM (JSR-223):
Rhino Nashorn
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Java and JavaScript in 2015 (Nashorn)
Nashorn: The New Rhino on the Blockhttp://ariya.ofilabs.com/2014/03/nashorn-the-new-rhino-on-the-block.html
Performance comparison between Rhino, Nashorn and Google V8 engines:
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Java and JavaScript in 2015 (Nashorn)
Inside Vert.x. Comparison with Node.jshttp://www.cubrid.org/blog/dev-platform/inside-vertx-comparison-with-nodejs/
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Java and JavaScript in 2015 (Nashorn)
Inside Vert.x. Comparison with Node.jshttp://www.cubrid.org/blog/dev-platform/inside-vertx-comparison-with-nodejs/
Here the bigger is better ;)
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Java and JavaScript in 2015 (Nashorn)
Nashorn: The New Rhino on the Blockhttp://ariya.ofilabs.com/2014/03/nashorn-the-new-rhino-on-the-block.html
Performance comparison between Rhino, Nashorn and Google V8 engines:
Nashorn provides the fastest
JavaScript RTE for the JVM.
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Java and JavaScript in 2015 (Nashorn)
JSR-223 (Nashorn: ECMA-262 and ECMAScript 5.1)
ScriptEngineManager manager = new ScriptEngineManager();ScriptEngine engine = manager.getEngineByName("JavaScript");
File f = new File("test.txt");engine.put("file", f);
engine.eval("print(file.getAbsolutePath())");
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High Performance Clusters with jWebSocket
The highly scalable real-time web applications development framework.
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High Performance Clusters with jWebSocket
• Why app clusters are required?
• Scalability
• High Availability
• High Performance• System load is distributed, parallelized when possible.
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High Performance Clusters with jWebSocket
• Why app clusters are required?
• Scalability
• High Availability
• High Performance• System load is distributed, parallelized when possible.
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Critical enterprise apps require
clusters.
High Performance Clusters with jWebSocket
• The jWebSocket approach for WebSocket clients
wss://
Nginxinstances
as
load balancer
ActiveMQcluster
as message broker
ws://
https://
http://
Nginxinstances
as web server
MongoDBcluster
as shared data
tcp://
jWebSocketinstances
as application nodes
tcp://tcp://
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High Performance Clusters with jWebSocket
• The jWebSocket approach for WebSocket clients
wss://
Nginxinstances
as
load balancer
ActiveMQcluster
as message broker
ws://
https://
http://
Nginxinstances
as web server
MongoDBcluster
as shared data
tcp://
jWebSocketinstances
as application nodes
tcp://tcp://
jWebSocket apps can scale up
to millions of clients.
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High Performance Clusters with jWebSocket
plus
JavaScript
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Creating JavaScript applications with jWebSocket Scripting plug-in
General concepts:• Script apps stands on the jWebSocket communication
backbone.
• Per app security sandbox (intended for multi-tenant purposes).
• Automatic client-side App object generation (optional).
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Creating JavaScript applications with jWebSocket Scripting plug-in
General concepts:• JavaScript apps (09/2015).
• Hot deploys and code reloads.
• NPM optional support (modules require to be Nashorn compliant).
• High level API.
• EventBus integration.
• Built-in annotations: type, not_null, max_length, min_length, min_value, max_value, default_value, regex, authenticated, authority, async.
• Custom annotation processors.
• Custom arguments validation.
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Creating JavaScript applications with jWebSocket Scripting plug-in
Live Demo:
•Create new app from the console.
•Add basic collection CRUD.
•Show HOT reload in action.
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Creating JavaScript applications with jWebSocket Scripting plug-in
Live Demo:
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Questions and Suggestions
Questions and Suggestions?• My contact: [email protected]
@kyberneees on twitter• Website: http://jwebsocket.org• More: http://jwebsocket.org/documentation/Plug-Ins/
Scripting-Plug-In/Developer-Guide
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