Grails Diary - Week 18 in 2014

04 May 2014

This week presented both the fourth release candidate for Groovy 2.3, a skipped RC3, and the final release of Groovy 2.3. Groovy 2.3 is of course already available with GVM tool. A final release like this speeds up MrHaki's Godness' posts, so there are valuable gems in the Blogs/articles section below.

The Ratpack Framework also released a new version this week, version 0.9.4, which includes a bit of restructuring, optimization fo performance and other great stuff.

The Grails/Groovy podcast is available as an MP3 only and the next episode is scheduled to air live Thursday, at 13:00 UTC: at Google+, and on YouTube

The Hackergarten on tour will be visiting a lot of conferences this year, read more about the Hackergarten

Tickets are now available for GR8conf US as well as GR8conf EU

Blogs, articles, etc.

• Groovy Weekly #19 (Guillaume Laforge)
• Grails Goodness: Using Aliases as Command Shortcuts (MrHaki)
• Groovy 2.3 gets a much faster JSON Parser (Matt Raible)
• Getting “svn info” using Groovy
• Groovy Database Resource Handling (Robert Greathouse)
• Awesome Asciidoc: Include Partial Parts from Code Samples (MrHaki)
• How to implement many to many relation between domains in grails with mongodb (Shivam Gupta )
• Gorm: Bulk Delete already! (Iyobo Philip Eki)
• Awesome Asciidoc: Explain Code with Callouts (MrHaki)
• Groovy Goodness: More Efficient Tail Recursion With TailRecursive Annotation (MrHaki)
• Groovy Goodness: Extra Methods for NIO Path (MrHaki)
• Groovy Goodness: Use Builder AST Transformation for Fluent API (MrHaki)
• Groovy Goodness: Using Builder to Create Fluent API for Other Classes (MrHaki)
• Groovy Goodness: @Builder Definition with Extra Type Checks (MrHaki)
• Groovy Goodness: BaseScript with Abstract Run Script Method (MrHaki)
• Groovy Goodness: Use Sortable Annotation to Make Classes Comparable (MrHaki)
• Groovy Goodness: Extend ConfigSlurper with Custom Environments Sections (MrHaki)
• Multi-Factor Authentication – Part 1 (Kyle Boon)

Updated Plugins

• Arrested Plugin Generates RESTful controllers for domain classes and maps them in UrlMappings, generates single-page AngularJS-based views, and provides simple token-based security
• Time Series Elastic Search Plugin Elastic Search implementation of time series.
• Neo4j GORM A plugin that integrates the Neo4j graph database into Grails, providing a GORM API onto it
• OohLaLog Plugin Grails Oohlalog Log4j Appender for Passing logs to the oohlalog API.
• jQuery for Grails Provides integration for the jQuery library with Grails JavascriptProvider
• Easygrid Plugin Provides a declarative way of defining Data Grids. It works currently with jqGrid, google visualization and jquery dataTables. Out of the box it provides sorting, filtering, exporting and inline edit just by declaring a grid in a controller and adding a tag to your gsp. It also provides a powerful selection widget ( a direct replacement for drop-boxes )
• Spud Cms Plugin Provides CMS functionality for spud
• ZK plugin for Grails Originated from Flyisland's ZK Plugin, ZKGrails adds and enhances the ZK's RIA capabilities and seamlessly integrates them with Grails' infrastructures.
• Spud Core Plugin Spud Admin is a dependency package that adds a nice looking administrative panel to any project you add it to. It supports easy grails app integration and provides core functionality for spud modules.
• Mailing List Plugin Schedule emails to a mailing group or to a person using dynamic quartz scheduling. Schedules stored within DB and upon application restart incomplete or future schedules are re-added to quartz queue.
• Google Visualization API Plugin This is a plugin for Google Visualization API.
• Spud Permalinks Plugin Creates a filter for redirecting urls from one location to another and provides an admin interface for defining these permalinks.
• Grails Application Version Update Plugin Provides a more friendly way to update your application or plugin version.
• Asset Pipeline Plugin The Asset-Pipeline is a plugin used for managing and processing static assets in Grails applications. Asset-Pipeline functions include processing and minification of both CSS and JavaScript files. It is also capable of being extended to compile custom static assets, such as CoffeeScript.
• Ajax Dependancy Selection Plugin Defines next auto completion/selection form field values ensuring it is bound on previous auto completed/selected form field. This can be used on two or more objects of hasMany and belongsTo. Provides: g:autocomplete, g:autoCompletePrimary, g:autoCompleteSecondary, g:autoCompleteSecondaryNR, g:selectPrimary, g:selectSecondary , g:selectSecondaryNR & g:selectController. g:selectAutoComplete and g:selectPrimaryNR. Now also supporting 1 object with multiple dependencies.
• Grails Apache Nutch alternative Very simple alternative to Apache Nutch created i
• Url Without Scheme Validator Plugin The Url Without Scheme Validator Plugin allows to use custom validator that validates the URLsbut - different than standard validator - does not care if the scheme is provided or not.Moreover, it can be used like "first-class", built-in validator.
• CDN Asset Pipeline Plugin Provides Gant scripts to automatically upload Grails app static assets to CDNs. Those scripts can easily be integrated to a build pipeline for continuous delivery/deployment. It uses Asset Pipeline Grails Plugin to precompile assets and Karman Grails Plugin to upload files to various Cloud Storage Services.
• Karman AWS Plugin Karman AWS provides an Amazon S3 Interface to the Karman API
• Karman Plugin Karman is a standardized / extensible interface plugin for dealing with various cloud services including Local and S3.

Interesting Tweets

• @CedricChampeau Glad to see #groovy 2.3.0 eventually out. A lot of work in that release. So much it would had deserved a 2.5 :)
• @DailyGrailsTip Using Golang and Graphviz to Visualize Complex #Grailsfw Applications - http://ilikeorangutans.github.io/2014/05/03/using-golang-and-graphviz-to-visualize-complex-grails-applications/
• @ysb33r So with the the 2.3 release of #groovylang, it has the fastest #json parser in #JVM land. Read that an weep ye that think Groovy is slow.
• @glaforge Some interesting pointers on data visualization http://www.mulinblog.com/teaching-data-visualization-recommended-readings-and-resources/
• @marcinerdmann CI for Geb moved to https://snap-ci.com/geb/geb/branch/master with snapshot uploading and http://gebish.org deployments on every successful build
• @flofreud @gvmtool thx for gvm and its API! I just pushed a #powershell port of the GVM CLI for #groovy devs using windows https://github.com/flofreud/posh-gvm
• @mittie now that is a rant worth reading “@ygrenzinger: Programming Sucks http://stilldrinking.org/programming-sucks”
• @tednaleid anyone used grails-asset pipeline with karma js testing? looks like this is the rails solution: http://sebastien.saunier.me/blog/2014/02/04/angular--rails-with-no-fuss.html anything better?
• @tednaleid if your method has a boolean parameter, you’re doing it wrong. Your code wants two methods and you are failing your code and your coworkers
• @DailyGrailsTip Write SmartApps to connect physical things to the Internet using SmartThings and their #groovylang DSL. https://support.smartthings.com/hc/en-us/articles/200901300-Introduction-to-Writing-SmartApps
• @phillip_webb Spring Framework 4.0.4 has been released. https://spring.io/blog/2014/05/01/spring-framework-4-0-4-released
• @tim_yates Nice examples by @dhirajmahapatro of the available strategies in #groovy 2.3's Builder annotation https://gist.github.com/dmahapatro/5e35e59cad2736a6723f #groovylang
• @musketyr feeling so sad each time I had to fallback to #hql instead using #grailsfw #gorm criteria queries. maybe I'm just not using it right.
• @mraible Groovy 2.3 is getting a much faster JSON Parser http://www.infoq.com/news/2014/04/groovy-2.3-json
• @tim_yates LongAdder is cool! Gaussian distribution in #Java8 with parallel Streams and LongAdder https://gist.github.com/timyates/348066a6a749ad0676f7
• @counternotions "If Tetris has taught me anything it's that errors pile up and accomplishments disappear."
• @sbglasius Pictures from the brewing session with the #gr8conf crew. http://bit.ly/1rBTQ48 Here’s making #gr8beer!
• @KentBeck RIP TDD http://on.fb.me/1luakLD i'm shopping for new programming techniques. a bunch of new techniques.
• @addyosmani Slides from 'Web Components Can Do That?!' are online http://addyosmani.github.io/fitc-wccdt/ & some extra resources https://gist.github.com/addyosmani/11404123 #FITCToronto
• @greach_es Slides & code from @pronoide_fer's "Grails Workshop" http://kcy.me/z4o2 #groovylang #grailsfw #greach
• @graemerocher Raw #hibernate vs #gorm for correlated subqueries in @grailsframework 2.4 https://gist.github.com/graemerocher/11394360 #groovylang #grailsfw
• @greach_es More slides & code, this time from @CedricChampeau's AST workshop: http://greach.es/speakers/cedric-champeau-unleashing-the-power-of-ast-transformations/ #greach #groovylang

Conferences and meetups