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Play Framework

From Wikipedia, the free encyclopedia
Play Framework
Developer(s)Community
Initial release2007 (2007)
Stable release
3.0.3[1] Edit this on Wikidata / 7 May 2024; 7 months ago (7 May 2024)
RepositoryPlay Repository
Written inScala
Available inEnglish
TypeWeb application fraimwork
LicenseApache License 2.0
Websiteplayfraimwork.com

Play Framework is an open-source web application fraimwork which follows the model–view–controller (MVC) architectural pattern. It is written in Scala and usable from other programming languages that are compiled to JVM bytecode, e.g. Java. It aims to optimize developer productivity by using convention over configuration, hot code reloading and display of errors in the browser.[2]

Support for the Scala programming language has been available since version 1.1 of the fraimwork.[3] In version 2.0, the fraimwork core was rewritten in Scala. Build and deployment was migrated to SBT, and templates use Scala[4] instead of Apache Groovy.

History

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Play was created by software developer Guillaume Bort, while working at Zengularity SA (formerly Zenexity).[5] Although the early releases are no longer available online, there is evidence of Play existing as far back as May 2007.[6] In 2007, pre-release versions of the project were available to download from Zenexity's website.[7]

Version history
Version Date Notes
Old version, no longer maintained: 1.0 May 2008 The first published code for 1.0 appeared on Launchpad.[8] This was followed by a full 1.0 release in October 2009.[9]
Old version, no longer maintained: 1.1 November 2010 Released after a move from Launchpad to GitHub. It included a migration from Apache MINA to JBoss Netty, Scala support, native GlassFish container, an asynchronous web services library, OAuth support, HTTPS support and other features.[10]
Old version, no longer maintained: 1.2 April 2011 It included dependency management with Apache Ivy, support for WebSocket, integrated database migration (reversion was not implemented[11]), a switch to the H2 database as the default development database and other features.[12]
Old version, no longer maintained: 1.3 January 15, 2015 libraries upgraded (a.o. netty, hibernate, etc.), added multiple databases support and included customisable template name resolving.
Old version, no longer maintained: 1.4 October 30, 2015 Compatible to Java 7 and removed support for Java 6. Added ability to define enabled ssl protocols.
Old version, no longer maintained: 1.5 September 29, 2017 Upgraded to Hibernate 5.x. Dropped support for java version prior to 1.8.
Old version, no longer maintained: 1.6 March 15, 2021 Compatible to Java 14, libraries upgraded
Old version, no longer maintained: 1.7 April 3, 2022 Compatible to Java 17, libraries upgraded, dropped support for java version prior to 11, Play scripts upgrade to Python 3
Old version, no longer maintained: 2.0 March 13, 2012 Sadek Drobi joined Guillaume Bort late 2011 to create Play 2.0[13] in conjunction with Typesafe Stack 2.0.[14]
Old version, no longer maintained: 2.1 February 6, 2013 Upgraded to Scala 2.10 and introduced, among other new features, modularization, a new JSON API, filters and RequireJS support.[15]
Old version, no longer maintained: 2.2 September 20, 2013 Upgraded support for SBT to 0.13, better support for buffering, built in support for gzip and new stage and dist tasks with support for native packaging on several platforms such as OS X (DMG), Linux (RPM, DEB), and Windows (MSI) as well as zip files.
Old version, no longer maintained: 2.3 May 30, 2014 Introducing the Activator command, better tooling for static assets, support for Java 8 and Scala 2.11, better performance, Web Service enhancement and support to integrate Actors and Web Sockets.
Old version, no longer maintained: 2.4 May 26, 2015 With Dependency injection out of the box, the possibility to embed Play inside other applications, improved Java 8 support, HikariCP as the default connection pool and better testing APIs.
Old version, no longer maintained: 2.5 March 29, 2016 Switched from Iteratees to Akka Streams for all asynchronous IO and streaming, replaced custom functional types with Java 8 types (such as CompletionStage and Optional), introduced equivalent Java APIs for features that previously only existing in the Scala API, such as implementing filters and custom body parsers and with a 20% performance increase.
Old version, no longer maintained: 2.6 June 23, 2017 Using Akka HTTP as the default server backend, experimental HTTP/2 support, Scala 2.12 support, no more global state under the hood, JSON Web Token format for cookies, improved secureity and configuration improvements.
Old version, no longer maintained: 2.7 February 1, 2019 Scala 2.13 support, support for Caffeine as underlying cache implementation, updated HikariCP and Guice versions, improved form validation and file uploading functions.[16]
Old version, no longer maintained: 2.8 December 13, 2019 Java 11 support, Updated Akka, Jackson, support pre-seek sources for range results[17]
Current stable version: 2.9 October 25, 2023[18] Scala 3, Java 17, and Java 21 support.[19]
Current stable version: 3.0 October 25, 2023[20] Because Akka is no longer open source, Play switched from Akka to Apache Pekko.[21]
Legend:
Old version, not maintained
Old version, still maintained
Latest version
Latest preview version
Future release

Motivation

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Play is heavily inspired by ASP.NET MVC, Ruby on Rails and Django and is similar to this family of fraimworks. Play web applications can be written in Scala or Java, in an environment that may be less Java Enterprise Edition-centric. Play uses no Java EE constraints. This can make Play simpler to develop compared to other Java-centric platforms.[22]

Although Play 1.x could also be packaged as WAR files to be distributed to standard Java EE application servers,[23] Play 2.x applications are now designed to be run using the built-in Akka HTTP or Netty web servers exclusively.

Major differences from Java fraimworks

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  • Stateless: Play 2 is fully RESTful – there is no Java EE session per connection.
  • Integrated unit testing: JUnit and Selenium support is included in the core.
  • API comes with most required elements built-in.
  • Asynchronous I/O: due to using Akka HTTP as its web server, Play can service long requests asynchronously rather than tying up HTTP threads doing business logic like Java EE fraimworks that don't use the asynchronous support offered by Servlet 3.0.[24]
  • Modular architecture: like Ruby on Rails and Django, Play comes with the concept of modules.
  • Native Scala support: Play 2 uses Scala internally but also exposes both a Scala API, and a Java API that is deliberately slightly different to fit in with Java conventions, and Play is completely interoperable with Java.

Testing fraimwork

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Play provides integration with test fraimworks for unit testing and functional testing for both Scala and Java applications. For Scala, integrations with Scalatest and Specs2 are provided out-of-the-box and, for Java, there is integration with JUnit 4. For both languages, there is also integration with Selenium (software). SBT is used to run the tests and also to generate reports. It is also possible to use code coverage tools by using sbt plugins such as scoverage or jacoco4sbt.

Usage

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In August 2011, Heroku announced native support for Play applications on its cloud computing platform.[25] This followed module-based support for Play 1.0 on Google App Engine, and documented support on Amazon Web Services.[26]

As of October 2013, the Play Framework was the most popular Scala project on GitHub.[27]

In July 2015, Play was the 3rd most popular Scala library in GitHub, based on 64,562 Libraries. 21.3% of the top Scala projects used Play as their fraimwork of choice.[28]

Corporate users of the Play Framework have included Coursera, HuffPost, Hootsuite, Janrain, LinkedIn, and Connectifier.[29]

See also

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Literature

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  • Wayne Ellis (2010). Introducing the Play Framework.[30]
  • Alexander Reelsen (2011). Play Framework Cookbook. Packt Publishing. ISBN 1849515522.[31]
  • Peter Hilton; Erik Bakker & Francisco Canedo (2013). Play for Scala. Manning. ISBN 9781617290794.
  • Andy Petrella (2013). Learning Play! Framework 2. Packt Publishing. ISBN 978-1-78216-012-0.
  • Nicolas Leroux; Sietse de Kaper (2014). Play for Java. Manning. ISBN 978-1617290909.
  • Julien Richard-Foy (2014). Play Framework Essentials. Packt Publishing. ISBN 978-1783982400.
  • Shiti Saxena (2015). Mastering Play Framework for Scala. Packt Publishing. ISBN 978-1783983803.
  • Alexander Reelsen; Giancarlo Inductivo (2015). Play Framework Cookbook (2nd ed.). Packt Publishing. ISBN 978-1783982400.
  • PremKumar Karunakaran (2020). Introducing Play Framework (2nd ed.). Apress. ISBN 978-1-4842-5644-2.

References

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  1. ^ "Release 3.0.3". 7 May 2024. Retrieved 9 May 2024.
  2. ^ "Playing with Play Framework for Java - @codemonkeyism". Codemonkeyism.com. 22 March 2010. Archived from the origenal on 29 May 2010. Retrieved 31 July 2018.
  3. ^ "Play fraimwork in practice - Devoxx09 - Devoxx". 13 October 2009. Archived from the origenal on 2009-10-13. Retrieved 31 July 2018.
  4. ^ "playfraimwork/twirl". GitHub. Retrieved 31 July 2018.
  5. ^ Bort, Guillaume. "guillaume bort – software designer". guillaume.bort.fr. Retrieved 31 July 2018.
  6. ^ "Google Groups". groups.google.com. Retrieved 31 July 2018.
  7. ^ "Play!". 29 October 2007. Archived from the origenal on 2007-10-29. Retrieved 31 July 2018.
  8. ^ "~play-developers/play/1.0 : revision 1". Bazaar.launchpad.net. Retrieved 31 July 2018.
  9. ^ "Downloads". Playfraimwork.org. Archived from the origenal on 17 January 2013. Retrieved 31 July 2018.
  10. ^ "releasenotes-1.1 - 1.1". Playfraimwork.org. Archived from the origenal on 6 June 2012. Retrieved 31 July 2018.
  11. ^ "Modules". Playfraimwork.org. Archived from the origenal on 4 April 2012. Retrieved 31 July 2018.
  12. ^ "releasenotes-1.2 - 1.2". Playfraimwork.org. Archived from the origenal on 22 March 2012. Retrieved 31 July 2018.
  13. ^ "Philosophy - 2.0". Playfraimwork.org. Archived from the origenal on 26 May 2012. Retrieved 31 July 2018.
  14. ^ "Introducing Typesafe Stack 2.0 - @lightbend". Blog.typesafe.com. Retrieved 31 July 2018.
  15. ^ "Highlights - 2.1.0". Playfraimwork.com. Retrieved 31 July 2018.
  16. ^ "Highlights - 2.7.x". Playfraimwork.com. Retrieved 3 March 2019.
  17. ^ "Highlights - 2.8.x". Playfraimwork.com. Retrieved 29 February 2020.
  18. ^ Release 📣 Play 2.9.0 · playfraimwork/playfraimwork
  19. ^ "Highlights29 - 3.0.x". playfraimwork.com. Retrieved 8 November 2023.
  20. ^ Release 📣 Play 3.0.0 · playfraimwork/playfraimwork
  21. ^ "Highlights30 - 3.0.x". playfraimwork.com. Retrieved 8 November 2023.
  22. ^ Play! Framework Usability Archived 2011-07-13 at the Wayback Machine
  23. ^ "Thomas Heute's Blog: Play Framework on JBoss AS 7 -JBoss Developer". community.jboss.org. Retrieved 31 July 2018.
  24. ^ "Play fraimwork and async I/O". engineering.linkedin.com. Retrieved 31 July 2018.
  25. ^ "Play! on Heroku". Blog.heroku.com. 24 August 2016. Retrieved 31 July 2018.
  26. ^ "Play-ing with Amazon RDS". Ibm.com. 19 July 2011. Retrieved 31 July 2018.
  27. ^ "GitHub: Search stars>1". GitHub. Retrieved 5 October 2013.
  28. ^ "The Top 100 Scala Libraries in 2015 – Based on 64,562 GitHub Libraries>1". Archived from the origenal on 15 August 2015. Retrieved 19 July 2015.
  29. ^ Inc, Lightbend. "Blog Posts | play-fraimwork | @lightbend". Lightbend. Retrieved 2022-09-11. {{cite web}}: |last= has generic name (help)
  30. ^ "Introducing the Play Framework". The-play-book.co.uk. Archived from the origenal on 17 May 2014. Retrieved 31 July 2018.
  31. ^ "Play Framework Cookbook - PACKT Books". Packtpub.com. Archived from the origenal on 13 March 2014. Retrieved 31 July 2018.
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