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This Week in Grails (2013-17)
Tuesday, May 7, 2013

We released Grails 2.1.5 and Grails 2.2.2 this week. Grails 2.3.M1 is tentatively planned for next Tuesday will be released soon.

I linked to Peter Ledbrook’s Where next for Grails? post previously and there have been two interesting followup posts, one from David Dawson and one from Graeme.

Ticket sales for GR8Conf EU end soon, so be sure to get yours.

Several new Grails presentations have become available:

Programming Grails is printing, and I got my copy this week. You can get yours at the O’Reilly website and at Amazon, and there is also a sample chapter available. You can save 50% until May 8th.

If you want to keep up with these “This Week in Grails” posts you can access them directly via their category link or in an RSS reader with the feed for just these posts.

Translations of this post:

 Miscellaneous Items
 Plugins
 Interesting Tweets
 Jobs
 User groups and Conferences

Plugins

There were 5 new plugins released:

  • jquery-date-time-picker version 0.1.0. Makes it easy to use jQuery date and time pickers
  • keywords-and-tags version 0.1. Provides a taglib able to highlight keywords/tags on your pages for SEO purposes
  • poly-driver version 0.2. Lets you specify a different preferred browser for each specific Geb specification class in a test suite
  • restrpc version 0.1. RESTRPC is an interceptor api that allows the user to associate more than one method/function per request method while still being compliant with the REST standard thus creating a ONE-TO-MANY pairing
  • scaffolding version 1.0.0. Handles the configuration of dynamic scaffolding

and 25 updated plugins:

  • atmosphere-meteor version 0.4.3. Incorporates the Atmosphere Framework (https://github.com/Atmosphere/atmosphere/wiki) and can form the basis for a traditional XMPP server with a browser-based client without the limitations of BOSH
  • aws-sdk version 1.4.2. Use the Amazon Web Services infrastructure services
  • barcode4j version 0.3. Generates barcodes using http://barcode4j.sourceforge.net/
  • build-test-data version 2.0.5. Enables the easy creation of test data by automatic inspection of constraints
  • cors version 1.1.0. Installs a servlet filter to set Access-Control-Allow-Origin and other CORS related headers to enable cross site AJAX requests to your Grails application
  • database-migration version 1.3.3. Official Grails plugin for database migrations
  • dojo version 1.6.1.17. Integrates the Dojo javascript toolkit
  • easyui version 1.0. Supplies jQuery EasyUI resources and taglibs
  • filterpane version 2.1.5. Adds filtering capabilities
  • hibernate version 3.6.10.M1. Provides integration between Grails and Hibernate through GORM
  • html5-mobile-scaffolding version 0.6.1. Scaffolds HTML5 mobile application using jQuery mobile in a single page
  • jaxrs version 0.8. Supports the development of RESTful web services based on the Java API for RESTful Web Services (JSR 311: JAX-RS)
  • marshallers version 0.3. Easy registration and usage of custom XML and JSON marshallers supporting hierarchical configurations
  • multi-tenant-single-db version 0.8.3. Multi tenant setup focused on single database mode
  • plastic-criteria version 0.9. Mock Grails Criteria for Unit Tests
  • plugin-config version 0.1.8. Simplifies plugin configuration tasks
  • quartz version 1.0-RC7. Schedules jobs to be executed with a specified interval or cron expression using the Quartz Enterprise Job Scheduler
  • recaptcha version 0.6.4. Integrates ReCaptcha and Mailhide services
  • release version 3.0.0. Publishes Grails plugins either to a public or private repository
  • rendering version 0.4.4. Render GSPs as PDFs, JPEGs, GIFs and PNGs
  • spring-security-facebook version 0.14. Plugin for Facebook Authentication, as extension to Grails Spring Security Core plugin
  • tomcat version 7.0.39. Makes Tomcat 7.0 the default servlet container for Grails at development time
  • vaadin version 1.7.4. Adds Vaadin (http://vaadin.com/) integration
  • validate-config version 0.4.1. Adds methods to ConfigObject for validating expected and required properties
  • zk version 2.2.0. Adds ZK Ajax framework (www.zkoss.org) support to Grails applications

Interesting Tweets

Jobs

User groups and Conferences

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This Week in Grails (2013-15)
Saturday, April 20, 2013

The Groovy team released Groovy 2.0.8 and 2.1.3 this week.

Peter Ledbrook wrote up some thoughts about the future of Grails on his blog.

Check out this recent GGUG talk on Grails services, command objects and design approaches.

If you want to keep up with these “This Week in Grails” posts you can access them directly via their category link or in an RSS reader with the feed for just these posts.

Translations of this post:

 Miscellaneous Items
 Plugins
 Interesting Tweets
 Jobs
 User groups and Conferences

Plugins

There were 3 new plugins released:

  • grooscript-vertx version 0.2.5. Convert your Groovy files to Javascript
  • search-fields version 0.1. Auto-generate search query based on DSL in domain classes
  • yui-war-minify version 1.2. Runs yui-compressor on css and javascript resources at WAR creation time

and 11 updated plugins:

  • build-info version 1.2.4. Provides a controller/view that display basic information about the war file
  • coffeescript-resources version 0.3.8. Create coffeescript modules that automatically compiles on every file change with jCoffeeScript
  • cxf version 1.1.1. Expose Grails services as SOAP web services via CXF
  • cxf-client version 1.5.3. Use existing (or new) Apache CXF wsdl2java generated content to invoke SOAP services
  • easyui version 0.9. Supplies jQuery EasyUI resources and taglibs
  • ember-templates-precompiler version 0.4.1. Precompiles EmberJS powered Handlebars templates
  • envers version 2.1.0. Integrates with Hibernate Envers
  • filterpane version 2.1.3. Adds filtering capabilities
  • gson version 1.1.4. Provides alternate JSON (de)serialization using Google’s Gson library
  • paypal version 0.6.9. Adds PayPal integration
  • uploadr version 0.7.3. HTML5 Drag and Drop file uploader

Interesting Tweets

User groups and Conferences

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This Week in Grails (2013-14)
Sunday, April 14, 2013

SpringSource has moved from VMware to EMC as part of Pivotal. Check out Adrian Colyer’s blog post for information about how this will affect Grails, Groovy, and Spring and what the future looks like for us.

The Groovy team did an extensive interview with ZeroTurnaround, lots of interesting stuff there.

Happy Birthday to Grails, the 0.1 release was 7 years ago.

I wrote a blog post about a new plugin that integrates Netty with Grails. It will probably take an integration into Grails core to see real benefits, but there should be some opportunities to improve scalability and performance with this plugin.

If you want to keep up with these “This Week in Grails” posts you can access them directly via their category link or in an RSS reader with the feed for just these posts.

Translations of this post:

 Miscellaneous Items
 Plugins
 Interesting Tweets
 Jobs
 User groups and Conferences

Plugins

There were 3 new plugins released:

  • domain-locking version 0.3. Provides an easy way to use optimistic/pessimistic lock
  • nettymvc version 0.1. Adds support for using Netty in Grails
  • typescript version 0.4.1. Helps you manage typescript code in your Grails application

and 16 updated plugins:

  • facebook-sdk version 0.4.10. Allows your application to use the Facebook Platform and develop Facebook apps on Facebook.com or on web sites (with Facebook Connect)
  • file-server version 0.2. Serves files from any directories on disk
  • force-response-download version 0.1.5. Forces the browser to open a dialog for downloading content produced within controller actions
  • geasyui version 0.8. Supplies jQuery EasyUI resources and taglibs
  • geb version 0.9.0. Geb is a library for headless web browsing on the JVM, suitable for automation and functional web testing
  • gorm-interceptors version 0.1.1. Interceptors for GORM methods (excluding find, countBy, addTo, removeFrom methods)
  • gson version 1.1.3. Provides alternate JSON (de)serialization using Google’s Gson library
  • handlebars-resources version 0.3.6. Supports using Handlebars.js templates with the Grails Resources Plugin
  • plastic-criteria version 0.8. Mock Grails Criteria for Unit Tests
  • remote-pagination version 0.4.3. Provides tags for pagination and to sort columns without page refresh using Ajax and loads only the list of objects needed
  • sharding version 1.0. Defines multiple database shards to horizontally scale data
  • slug-generator version 0.3.1. Generates unique slugs for String properties, for example to generate unique ‘nice’ urls for access to domain objects
  • spring-security-twitter version 0.5. Twitter authentication as extension to the Spring Security Core plugin
  • uploadr version 0.7.2. HTML5 Drag and Drop file uploader
  • vaadin version 1.7.3. Adds Vaadin (http://vaadin.com/) integration
  • zkui version 0.5.6. Seamlessly integrates ZK with Grails’ infrastructures; uses the Grails’ infrastructures such as GSP, controllers rather than zk’s zul as in ZKGrails plugin

Interesting Tweets

Jobs

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Grails and Netty
Monday, April 1, 2013

With all of the buzz about the Play vs Grails Smackdown at Devoxx last week, and this framework benchmark comparison from TechEmpower, I thought it would be interesting to look again at Rossen Stoyanchev’s demo project that integrates Spring MVC with Netty. He had mentioned it on the SpringSource internal developer list and I bookmarked it for later since I was curious about Netty.

I spent the weekend converting Rossen’s code to work with Grails, and created a plugin, borrowing some code from the Spring mock Servlet API classes and also from Tomcat. It’s a weird plugin in that it runs concurrently with the regular web app on a different port. I’m currently taking advantage of the work that Grails does, e.g. creating the Spring ApplicationContext, compiling GSPs in production WARs, etc. But it should be easy enough to get it to run standalone. It’s similar to the Dropwizard plugin, which also adds an alternative and higher-performance request path within a Grails application.

Netty is a generic (but high-performance) network library, so it doesn’t have extensive support for the Servlet API. But it does support HTTP, and that’s what Rossen’s code and my version add – a bridging layer between the lower-level Netty approach and the Servlet API. Ideally this provides a performance and scalability boost from Netty’s non-blocking IO, with the familiarity of the request/response/session approach in the Servlet API.

Most everything works in the plugin, but there are some omissions. There’s no support for SSL, and file upload isn’t implemented. You can do all of the usual Grails stuff, i.e. use controllers, services, GORM, etc. There is support for HTTP Sessions, although they’re not serialized to disk at shutdown and there’s no support for distributed sessions. But other than these items, making requests on the Netty port should work pretty much the same as requests on the servlet container port.

You can install the plugin in the usual way, i.e. add this to BuildConfig.groovy

compile ':nettymvc:0.1'

It will start a server socket on port 8080 by default, but you can configure that in Config.groovy, e.g.

grails.plugin.nettymvc.port = 8090

The plugin page is here and the source is here. Please try it out and let me know if there are issues or if you have suggestions for improvements, ideally in the form of pull requests of course :)

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This Week in Grails (2013-12)
Saturday, March 30, 2013

The Groovy team released version 2.1.2 this week.

Check out Graeme’s blog post on the new async features in Grails 2.3.

If you want to keep up with these “This Week in Grails” posts you can access them directly via their category link or in an RSS reader with the feed for just these posts.

Translations of this post:

 Miscellaneous Items
 Plugins
 Interesting Tweets
 Jobs
 User groups and Conferences

Plugins

There were 7 new plugins released:

  • google-analytics-tracker version 0.1. Provides a simple way to embed your web application with page view tracking and event tracking of Google Analytics
  • gorm-interceptors version 0.1. Interceptors for GORM methods (excluding find, countBy, addTo, removeFrom methods)
  • mixpanel version 1.0. Integration with www.mixpanel.com analytics
  • sanchez version 1.0. Integration for sanchez.js javascript/html/GSP templates on client and server-side
  • segmentio version 0.1.7. Use Segment.io to send your analytics data to any service you want, without you having to integrate with each one individually
  • tika-parser version 1.3.0. Bundles the Apache Tika toolkit along with a parser service
  • validate-config version 0.4. Adds methods to ConfigObject for validating expected and required properties

and 13 updated plugins:

  • aws-sdk version 1.4.1. Use the Amazon Web Services infrastructure services
  • clover version 3.1.11. Integrates the Clover code coverage tool
  • code-coverage version 1.2.6. Generates code coverage reports using Cobertura
  • facebook-sdk version 0.4.9. Allows your application to use the Facebook Platform and develop Facebook apps on Facebook.com or on web sites (with Facebook Connect)
  • geasyui version 0.7. Supplies jQuery EasyUI resources and taglibs
  • gson version 1.1.2. Provides alternate JSON (de)serialization using Google’s Gson library
  • jaxrs version 0.7. Supports the development of RESTful web services based on the Java API for RESTful Web Services (JSR 311: JAX-RS)
  • jdbc-pool version 7.0.37. Replaces default Grails Commons DBCP Pool with Tomcat JDBC Pool” target=’_blank’>http://people.apache.org/~fhanik/jdbc-pool/)
  • jesque version 0.6.1. Groovier approach to using jesque
  • jquery-validation-ui version 1.4.4. Client Side Validation without writing JavaScript
  • recaptcha version 0.6.3. Integrates ReCaptcha and Mailhide services
  • spring-security-facebook version 0.13.2. Plugin for Facebook Authentication, as extension to Grails Spring Security Core plugin
  • uploadr version 0.7.1. HTML5 Drag and Drop file uploader

Interesting Tweets

Jobs

User groups and Conferences

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