Post on 06-May-2015
Faster than rabbits
@BauerVlad, 2014
Questions / Problems
• Why are we so slow?• How to increase development productivity?• How to extend the sphere of projects to develop?• How to develop High-Load web applications?• How to develop small / medium sized projects fast?• What can we do with it?
Java principles
1. It should be "simple, object-oriented and familiar"2. It should be "robust and secure"3. It should be "architecture-neutral and portable"4. It should execute with "high performance"5. It should be "interpreted, threaded, and dynamic”
+ WORA
James Gosling, 1991-1995
What's the catch?
Spring that you might not know
• Spring Web Services• Spring Data• Spring Web Flow• Spring Integration• Spring Batch• Spring Security• Spring HATEOAS• Spring Social• Spring AMQP• Spring Mobile• Spring for Android
• Spring Boot• Spring XD• Spring LDAP• Spring Scala• Spring Roo• Spring Blazeds Integration• Spring Loaded• Spring Shell• etc.
Java disadvantages
• “Generic” solutions / Tons of code• High level of complexity in libraries / frameworks• Poor concurrency model• Stateful nature• Mutable nature• Backward compatibility• Monolithic applications architecture• High resource consumption• Poor code hot swapping• Static typing
Hussars keep silence!
BeanShell, JudoScript, Fortress, Gosu, JGNAT, BBj, Adobe ColdFusion, Railo, Open BlueDragon, Armed Bear Common Lisp, CLforJava, Rhino, Nashorn, Free Pascal, MIDletPascal, Rakudo Perl 6, JIProlog, TuProlog, NetRexx, Bigloo, Kawa,
SISC, Jscheme, Jacl, …
JVM languages
PHP: Hypertext Preprocessor
• Original name: Personal Home Page Tools• Paradigms: imperative, functional, object-oriented,
procedural, reflective• Short time to market• Easy integration• Flexibility• Availability of resources
“I don’t know how to stop it, there was never any intent to write a programming language. I have absolutely no idea how to write a programming
language, I just kept adding the next logical step on the way.”(Rasmus Lerdorf)
What about High-Load?
• Debian Linux• nginx• PHP + XCache• Apache + mod_php• memcached• MySQL• Custom DB (internal
project)• node.js for XMPP• HAProxy• XFS• ffmpeg
• Linux• PHP / HipHop / Hack• memcached• MySQL• Apache Thrift• Scribe
• MySQL• Linux• PHP• Lucene• APC PHP Accelerator• Memcached
• Linux• Python• Django• Apache 2.2• PostgreSQL• memcached• HAProxy• Slony• heartbeat
• Microsoft ASP.NET MVC• SQL Server 2008• C#• JQuery• LINQ to SQL
• WISC• Windows Server 2008 R2
x64, Ubuntu Server, CentOS• MS SQL Server 2008 R2• IIS 7.0, HAProxy• Redis• Lucene.NET• Bacula• Nagios (+ n2rrd, drraw)• DotNetOpenId• Prettify, MarkdownSharp,
Flot
• Ubuntu Linux 11.04• Python• Django• Amazon: EC2, ELB, Route53,
S3, CloudFront• Nginx• gunicorn• HAProxy• PostgreSQL: postgis, pgfouine,
pgbouncer• Redis, Memcached• Gearman• Solr• munin, statsd, pingdom• Fabric• XFS
• Amazon AWS• Nginx• Python• Django• MySQL• Memcached• Redis• Solr• Hadoop
• Linux (Debian Sarge)• Perl• Apache• MySQL + InnoDB• Perlbal• Memcached• MogileFS• Gearman• TheShwartz• djabberd
• CentOS, Mac OS X• Apache• PHP, Scala, Ruby, Java• Finagle• MySQL, HBase• memcached, Redis• Varnish, nginx• HAProxy• kestrel, Gearman• Thrift• Kafka• Hadoop• ZooKeeper
• Windows & OpenSUSE• Java• С/С++• GWT• Apache Tomcat• JBoss 4• LVS & IPVS• MS SQL 2005 & 2008• BerkleyDB• Apache Lucene
• Solaris (x86, SPARC)• Java• Tomcat & Jetty• Oracle & MySQL• ORM• ActiveMQ for JMS• Lucene• Spring
A long time ago in a galaxy far, far away…
Tools
(Chronon)
Example: Halloween project
• Description: TELNET application
• 38 RFC describes TELNET protocol
• Node.js, modules: net, cowsay, colors
• 39 lines of code• Development time: 15-
30m (+ 2-3h to find content)
BaaS / MBaaS
• Versioning• User management• Analytics• Code generation• Media streaming• File management• Geolocation• Push notifications• Integration with social
networks• etc.
• http://parse.com• http://backendless.com• http://cloudbase.io• http://quickblox.com• http://appery.io• http://feedhenry.com• http://apiomat.com• http://applicasa.com• http://kidozend.com• etc
Web frameworks
Java Web developmentClick, OFBiz, Shale, Sling, Struts, Tapestry, Wicket, AppFuse, Eclipse RAP, FormEngine, Google Web Toolkit, Hamlets, ItsNat, JavaServer Faces, JBoss Seam, JSF (RichFaces, ICEFaces, PrimeFaces, MyFaces, Oracle ADF Faces Rich Client, Backbase Enterprise Ajax, IBM Notes,
Sun Java BluePrints, ZK Ajax), JSP, Jspx-bay, JVx, OpenLaszlo, OpenXava, RIFE, Spark, Spring (MVC, WebFlow), Stripes, ThinWire,
Vaadin, Wavemaker, WebObjects, WebWork, ZK, ztemplate...
Tomcat, Geronimo, GlassFish, JBoss, Jetty, Jaminid, Enhydra, Winstone, Underthow, TJWS, Eclipse Virgo, Borland ES, JRun,
LiteWebServer, WebLogic, Orion, Resin, ServletExec, WebSphere, NetWeaver, tc Server
...
JSF• JSF 2.2 (2013-05-21) — Introduced new concepts like stateless views, page flow and the
ability to create portable resource contracts.• JSF 2.1 (2010-11-22) — Maintenance release 2 of JSF 2.0. Only very minor amount of spec
changes.• JSF 2.0 (2009-07-01) — Major release for ease of use, enhanced functionality, and
performance. Coincides with Java EE 6.• JSF 1.2 (2006-05-11) — Many improvements to core systems and APIs. Coincides with Java EE
5. Initial adoption into Java EE.• JSF 1.1 (2004-05-27) — Bug fix release. No specification changes.• JSF 1.0 (2004-03-11) — Initial specification released.
Server-side rendering
Components:PrimeFaces, JBoss RichFaces, ICEfaces, Apache MyFaces, Oracle ADF Faces Rich Client, Backbase Enterprise Ajax, IBM Notes, Sun Java BluePrints, ZK Ajax
Problems with customization
GWT?
• Using HTML in GWT - poor• Using CSS in GWT - poor• Separation of concerns - poor• Union of problems• Desktop != Web
• Live examples:• Simba: GWT -> AngularJS• 30-50m to build big projects
Client-side rendering
Rendering
Server-Side• Has expensive (re)deploy• Needs a lot of hardware
resources• Uses expensive caching• Needs additional REST API• Uses needed data set• Has framework components• Can split development team• Has got less JS code
Client-Side• Has instant redeploy• Does not use a lot of server
resources• Uses cheap caching• Has out-of-box REST API• Uses extended data set• Has framework components• Can split development team• Has got a lot of JS code
vs
Client-side
• Demand (Hot Google searches):• Java: about 230 000 000 results• JavaScript: about 916 000 000 results• PHP: about 3 140 000 000 results
Distribution of workDesigner
Frontend Developer
Backend Developer
HTML Coder
10%10%
40%
40%
Web browsers
Browser Version
IE 11
Firefox 28.0
Chrome 33.0.x
Safari 7.0.3
Opera 20.0
WebKit (Apple)V8 (Google)
http://html5test.comBrowser Version Points (max: 555)
Chrome 33 505
Opera 20 496
Opera Mobile 16 471
Firefox 28 448
Android 4.4 428
iOS 7 412
Safari 7 397
Internet Explorer
11 376
10 335
9 128
Windows Phone 8.1 372
http://css3test.comBrowser OS Version %
Opera Windows 7 20.0 59%
Chrome OS X 10.9.2 33 57%
Firefox OS X 10.9.2 22 52%
Internet Explorer Windows 7 11 52%
Opera OS X 10.9.2 12.5 48%
(without vendor-specific features)
Languages
(Caffeine)
AngularJS
The small joys
+ 1001
Testing
(BDD) (Example)
(maven-surefire-plugin)
(Spock, Cucumber)
(JUnit, TestNG)
Tools
> > >
(Apache Maven) (Apache Ant) (Apache Ivy)
(checkstyle)
Questions?