Miles to go …

Rails 2.1 was released earlier this month. GlassFish provides a complete development/deployment environment for Rails applications. Some of the main reasons for using GlassFish (instead of WEBrick or Mongrel) are:

• Identical Development and Deployment environment
• Multiple Applications can be deployed on one Container
• Multiple requests can be handled by a single application (with no extra configuration)
• Out-of-the-box Clustering, Load Balancing and High Availability
• Database connection pooling
• Co-hosting Rails and Java EE applications

More details are available in Rails powered by the GlassFish Application Server. This blog provides detailed instructions to get started with Rails 2.1 on GlassFish.

1. Install Rails 2.1 in a JRuby 1.1.2 installation:

   ~/testbed/rails21/jruby-1.1.2 >bin/jruby -S gem install rails –no-ri –no-rdoc JRuby limited openssl loaded. gem install jruby-openssl for full support. http://wiki.jruby.org/wiki/JRuby_Builtin_OpenSSL Updating metadata for 253 gems from http://gems.rubyforge.org/ ……………………………………………………………………. ……………………………………………………………………. ……………………………………………………………………. ……………. complete Bulk updating Gem source index for: http://gems.rubyforge.org/ Successfully installed activesupport-2.1.0 Successfully installed activerecord-2.1.0 Successfully installed actionpack-2.1.0 Successfully installed actionmailer-2.1.0 Successfully installed activeresource-2.1.0 Successfully installed rails-2.1.0 6 gems installed

2. Create a new Rails app as:
   

   ~/testbed/rails21/jruby-1.1.2/samples/rails >../../bin/jruby -S rails -d mysql runner       create         create  app/controllers       create  app/helpers       create  app/models       create  app/views/layouts       create  config/environments       create  config/initializers       create  db       create  doc       create  lib       create  lib/tasks       create  log       create  public/images       create  public/javascripts       create  public/stylesheets       create  script/performance       create  script/process       create  test/fixtures       create  test/functional       create  test/integration       create  test/unit       create  vendor       create  vendor/plugins       create  tmp/sessions       create  tmp/sockets       create  tmp/cache       create  tmp/pids       create  Rakefile       create  README       create  app/controllers/application.rb       create  app/helpers/application_helper.rb       create  test/test_helper.rb       create  config/database.yml       create  config/routes.rb       create  config/initializers/inflections.rb       create  config/initializers/mime_types.rb       create  config/initializers/new_rails_defaults.rb       create  config/boot.rb       create  config/environment.rb       create  config/environments/production.rb       create  config/environments/development.rb       create  config/environments/test.rb       create  script/about       create  script/console       create  script/dbconsole       create  script/destroy       create  script/generate       create  script/performance/benchmarker       create  script/performance/profiler       create  script/performance/request       create  script/process/reaper       create  script/process/spawner       create  script/process/inspector       create  script/runner       create  script/server       create  script/plugin       create  public/dispatch.rb       create  public/dispatch.cgi       create  public/dispatch.fcgi       create  public/404.html       create  public/422.html       create  public/500.html       create  public/index.html       create  public/favicon.ico       create  public/robots.txt       create  public/images/rails.png       create  public/javascripts/prototype.js       create  public/javascripts/effects.js       create  public/javascripts/dragdrop.js       create  public/javascripts/controls.js       create  public/javascripts/application.js       create  doc/README_FOR_APP       create  log/server.log       create  log/production.log       create  log/development.log       create  log/test.log

3. Start GlassFish as:
   

   ~/testbed/glassfish/v3/tp2/glassfishv3-tp2/glassfish >java -DJRUBY_HOME=/Users/arungupta/testbed/rails21/jruby-1.1.2 -jar modules/glassfish-10.0-tp-2-SNAPSHOT.jar Jun 17, 2008 6:14:21 PM com.sun.enterprise.glassfish.bootstrap.ASMain main INFO: Launching GlassFish on HK2 platform Jun 17, 2008 6:14:22 PM com.sun.enterprise.v3.services.impl.GrizzlyProxy start INFO: Listening on port 8080 Jun 17, 2008 6:14:22 PM com.sun.enterprise.v3.services.impl.GrizzlyProxy start INFO: Listening on port 8181 Jun 17, 2008 6:14:22 PM com.sun.enterprise.v3.services.impl.GrizzlyProxy start INFO: Listening on port 4848 Jun 17, 2008 6:14:22 PM com.sun.enterprise.v3.admin.adapter.AdminConsoleAdapter setContextRoot INFO: Admin Console Adapter: context root: /admin Jun 17, 2008 6:14:22 PM com.sun.enterprise.v3.server.AppServerStartup run INFO: Glassfish v3 started in 974 ms

4. Deploy the newly created application as:
   

   ~/testbed/rails21/jruby-1.1.2/samples/rails >~/testbed/glassfish/v3/tp2/glassfishv3-tp2/glassfish/bin/asadmin deploy runner Command deploy executed successfully.

   and the GlassFish console shows:

   Jun 17, 2008 6:14:41 PM com.sun.enterprise.rails.RailsDeployer registerAdapter INFO: Loading application runner at /runner Jun 17, 2008 6:14:41 PM   INFO: Starting Rails instances Jun 17, 2008 6:14:49 PM   SEVERE: JRuby limited openssl loaded. gem install jruby-openssl for full support. http://wiki.jruby.org/wiki/JRuby_Builtin_OpenSSL Jun 17, 2008 6:14:51 PM com.sun.grizzly.jruby.RubyObjectPool$1 run INFO: Rails instance instantiation took : 9066ms Jun 17, 2008 6:14:51 PM com.sun.enterprise.v3.deployment.DeployCommand execute INFO: Deployment of runner done is 9168 ms

   The default page at “http://localhost:8080/runner” shows

   

5. Generate a Scaffold as described in TOTD #28
   

   ~/testbed/rails21/jruby-1.1.2/samples/rails/runner >../../../bin/jruby -S rake db:create (in /Users/arungupta/testbed/rails21/jruby-1.1.2/samples/rails/runner) ~/testbed/rails21/jruby-1.1.2/samples/rails/runner >../../../bin/jruby script/generate scaffold distance miles:float run_at:datetime JRuby limited openssl loaded. gem install jruby-openssl for full support. http://wiki.jruby.org/wiki/JRuby_Builtin_OpenSSL       exists  app/models/       exists  app/controllers/       exists  app/helpers/       create  app/views/distances       exists  app/views/layouts/       exists  test/functional/       exists  test/unit/       exists  public/stylesheets/       create  app/views/distances/index.html.erb       create  app/views/distances/show.html.erb       create  app/views/distances/new.html.erb       create  app/views/distances/edit.html.erb       create  app/views/layouts/distances.html.erb       create  public/stylesheets/scaffold.css       create  app/controllers/distances_controller.rb       create  test/functional/distances_controller_test.rb       create  app/helpers/distances_helper.rb        route  map.resources :distances   dependency  model       exists    app/models/       exists    test/unit/       exists    test/fixtures/       create    app/models/distance.rb       create    test/unit/distance_test.rb       create    test/fixtures/distances.yml       create    db/migrate       create    db/migrate/20080618012326_create_distances.rb ~/testbed/rails21/jruby-1.1.2/samples/rails/runner >../../../bin/jruby -S rake db:migrate (in /Users/arungupta/testbed/rails21/jruby-1.1.2/samples/rails/runner) == 20080618012326 CreateDistances: migrating ================================== — create_table(:distances)    -> 0.0080s == 20080618012326 CreateDistances: migrated (0.0090s) =========================

6. Edit line 44 of “config/environment.rb” to change the default timezone from “UTC” to “Pacific Time (US & Canada)”. The updated line looks like:
   

   config.time_zone = ‘Pacific Time (US & Canada)’

7. Creating a new scaffold entry shows the following screen:

   

   Notice how default timezone is selected using Rails 2.1 Time Zone Support. After creating couple of entries (as described in TOTD #28), the page at “http://localhost:8080/runner/distances” looks like:

   

   Notice how “-0700″ is shown which is the offset for US Pacific Time during daylight savings.

The same application can also be easily deployed on GlassFish v3 Gem. Let’s see how:

1. Install GlassFish v3 Gem as:

   ~/testbed/rails21/jruby-1.1.2 >bin/jruby -S gem install glassfish JRuby limited openssl loaded. gem install jruby-openssl for full support. http://wiki.jruby.org/wiki/JRuby_Builtin_OpenSSL Updating metadata for 13 gems from http://gems.rubyforge.org/ …………. complete Successfully installed glassfish-0.2.0-universal-java 1 gem installed

2. Deploy the previously created Rails application as:
   

   ~/testbed/rails21/jruby-1.1.2/samples/rails >../../bin/jruby -S glassfish_rails runner Jun 17, 2008 6:39:37 PM com.sun.enterprise.glassfish.bootstrap.ASMain main INFO: Launching GlassFish on HK2 platform Jun 17, 2008 6:39:37 PM com.sun.enterprise.glassfish.bootstrap.ASMainHK2 findDerbyClient INFO: Cannot find javadb client jar file, jdbc driver not available Jun 17, 2008 6:39:38 PM com.sun.enterprise.v3.services.impl.GrizzlyProxy start INFO: Listening on port 3000 Jun 17, 2008 6:39:38 PM com.sun.enterprise.v3.services.impl.GrizzlyEmbeddedHttpConfigurator configureSSL WARNING: pewebcontainer.all_ssl_protocols_disabled Jun 17, 2008 6:39:38 PM com.sun.enterprise.v3.services.impl.GrizzlyEmbeddedHttpConfigurator configureSSL WARNING: pewebcontainer.all_ssl_ciphers_disabled Jun 17, 2008 6:39:38 PM com.sun.enterprise.v3.services.impl.GrizzlyProxy start INFO: Listening on port 3131 Jun 17, 2008 6:39:38 PM com.sun.enterprise.v3.services.impl.GrizzlyProxy start INFO: Listening on port 3838 Jun 17, 2008 6:39:39 PM com.sun.enterprise.v3.admin.adapter.AdminConsoleAdapter setContextRoot INFO: Admin Console Adapter: context root: /admin Jun 17, 2008 6:39:39 PM com.sun.enterprise.rails.RailsDeployer registerAdapter INFO: Loading application runner at / Jun 17, 2008 6:39:39 PM  INFO: Starting Rails instances Jun 17, 2008 6:39:44 PM  SEVERE: JRuby limited openssl loaded. gem install jruby-openssl for full support. http://wiki.jruby.org/wiki/JRuby_Builtin_OpenSSL Jun 17, 2008 6:39:45 PM com.sun.grizzly.jruby.RubyObjectPool$1 run INFO: Rails instance instantiation took : 6710ms Jun 17, 2008 6:39:45 PM com.sun.enterprise.v3.server.AppServerStartup run INFO: Glassfish v3 started in 8053 ms

   The page at “http://localhost:3000/runner” looks like:

   

Let us know on GlassFish Webtier Forum or Webtier Alias if you tried any of your Rails application on GlassFish. Please file bugs at GlassFish Issue Tracker (“V3″ as “Found in Version:” and “jruby” as “Subcomponent:”) if your app is not working.

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