Arun Gupta, Miles to go ...

Rails 2.1 on GlassFish - it works!

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

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.
   

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:
   
   
   

Posted by Arun Gupta in web2.0  |  Comments[6]

JRuby 1.1.2 released - Getting Started with v3 Gem

JRuby 1.1.2 was released yesterday - download here!

The highlights are:

• Startup time drastically reduced
• YAML symbol parsing >100x faster
• Performance, threading, and stack depth improvements for method calls
• Fixed several nested backref problems
• Fixed bad data race (JRUBY-2483)
• Gazillions of bigdecimal issues fixed
• 95 issues resolved since JRuby 1.1.1
  

Posted by Arun Gupta in web2.0  |  Comments[4]

GlassFish v3 Gem 0.2.0 released

A newer version of GlassFish v3 Gem for Ruby on Rails is now available.

What's new ?

• Codebase aligned with GlassFish v3 Technology Preview 2
• Previous version (0.1.2) had some packaging issues which increased the size but now it's back to sweet 2.8 Mb.

Posted by Arun Gupta in web2.0  |  Comments[1]

JRuby 1.1 released - ready for production!

JRuby 1.1 is released and ready for production use today. You can unleash the potential in 3 simple steps - download, unzip & get started. Here is a quote from the announcement:

more and more reports of applications exceeding Ruby 1.8.6 performance; we are even beating Ruby 1.9 in some microbenchmarks

This is validated by 1 (Oct 2007), 2 (Nov 2007), 3 (Feb 2008), 4 (Feb 2008) and many other hidden/unknown reports. You can easily configure JRuby 1.1 as the platform of your choice in NetBeans 6.1 as described in TOTD #27.

Now, match this blazing performance of JRuby with GlassFish v3 gem (only 2.4 Mb) which provides a superior solution for developing and deploying Rails application. The main reasons for using GlassFish instead of WEBrick/Mongrel/LightTPD are:

• Identical development and deployment environments
• Handles multiple requests by maintaining JRuby runtimes and database connection pools
• Ability to redploy an application without restarting container
• In-built Clustering, Load Balancing, and High Availability support
• Allows to leverage investment in a Java EE infrastructure and cohosting Ruby-on-Rails and Java EE applications

Posted by Arun Gupta in web2.0  |  Comments[2]

JRuby 1.1 RC3 released - Last chance to file bugs

JRuby 1.1 RC3 (third and final release candidate) was released last week. The highlights are:

• 58 issues resolved since JRuby 1.1RC2
• ri/rdoc w/ documentation included in distribution
• More IO corner cases fixed (popen, reopen)
• Several small bottlenecks fixed
  

Posted by Arun Gupta in web2.0  |  Comments[0]

GlassFish v3 gem 0.1.2 released

Pramod announced the release of GlassFish v3 Gem ver 0.1.2. The focus of this release is bugfixes:

• IssueTracker #4228: Duplicate entries for Scaffold generated by Rails 2.0.2
• IssueTracker #3966: Blank page returned if no Rails instance is available
• RubyForge #17970: All requests are Ajax requests
• RubyForge #18162: observe_field for Ajax capablites work only once

Macintosh-187:jruby-1.1RC2 arungupta$ bin/jruby -S gem list -d glassfish *** LOCAL GEMS *** glassfish (0.1.1)     GlassFish V3 Application Server for JRuby

Macintosh-187:jruby-1.1RC2 arungupta$ bin/jruby -S gem list -d glassfish *** LOCAL GEMS *** glassfish (0.1.2, 0.1.1)     GlassFish V3 Application Server for JRuby

bin/jruby -S gem uninstall GlassFish bin/jruby -S gem install glassfish

Posted by Arun Gupta in web2.0  |  Comments[4]

BitNami's JRubyStack = JRuby + Rails + GlassFish Gem + MySQL all bundled together

BitNami provides easy-to-use, integrated and multiplatform install bundles for different open source apps. They released JRubyStack last week which includes JRuby 1.1 RC2, Rails 2.0.2, GlassFish v3 Gem 0.1.1, MySQL 5.0.45 and some other miscellaneous components. The components mentioned here are all you need to get started with hosting your JRuby-on-Rails applications on GlassFish. Refer to release notes for more details.

The steps below walks you through installation of JRubyStack. It shows how this stack provides an integrated and ready-to-use bundle for hosting your applications on GlassFish:

1. Install JRubyStack
   1. Download JRubyStack from here. Click on the installer to see:
      
      
       
   2. Clicking on "Next >" brings the following screen:
      
      
      
      Even though it shows "JRuby on Rails" component but it includes everything, including GlassFish v3 Gem & MySQL server, in it.
   3. Further in the installation process, change the database user name from default "jrubystack" to "root". Take all other defaults through out the installation process.
   4. After the installation is completed, the following program menu is added
      
      
       
2. After the bundle is installed, it's ready to use - MySQL server is started, a default application is created in "C:\Users\Arun Gupta\BitNami JRubyStack projects\jrubystack" and hosted using GlassFish v3 gem at "http://localhost:3000". Here is the output shown in the console window started by JRubyStack:
   
   Mar 10, 2008 2:49:26 PM com.sun.enterprise.v3.server.AppServerStartup run
INFO: Init service : com.sun.enterprise.v3.services.impl.CmdLineParamProcessor@1d9e5ad
Mar 10, 2008 2:49:26 PM com.sun.enterprise.v3.server.AppServerStartup run
INFO: Init service : com.sun.enterprise.v3.server.SystemTasks@33c3e6
Mar 10, 2008 2:49:26 PM com.sun.enterprise.v3.server.AppServerStartup run
INFO: Init service : com.sun.enterprise.v3.services.impl.LogManagerService@1b70f9e
Mar 10, 2008 2:49:26 PM com.sun.enterprise.v3.server.AppServerStartup run
INFO: Init service : com.sun.enterprise.v3.services.impl.HouseKeeper@666d83
Mar 10, 2008 2:49:26 PM com.sun.enterprise.v3.services.impl.DeploymentService postConstruct
INFO: Supported containers : web,jruby,phobos
Mar 10, 2008 2:49:26 PM com.sun.enterprise.v3.server.AppServerStartup run
INFO: Startup service : Deployment
Mar 10, 2008 2:49:26 PM com.sun.enterprise.v3.server.AppServerStartup run
INFO: Startup service : org.glassfish.deployment.autodeploy.AutoDeployService@15925c0
Mar 10, 2008 2:49:27 PM com.sun.enterprise.v3.services.impl.GrizzlyAdapter <init>
INFO: Listening on port 3000
Mar 10, 2008 2:49:27 PM com.sun.enterprise.v3.services.impl.GrizzlyAdapter <init>
INFO: Listening on port 3131
Mar 10, 2008 2:49:27 PM com.sun.enterprise.v3.services.impl.GrizzlyAdapter <init>
INFO: Listening on port 3838
Mar 10, 2008 2:49:27 PM com.sun.enterprise.v3.server.AppServerStartup run
INFO: Startup service : com.sun.enterprise.v3.services.impl.GrizzlyService@eccfe7
Mar 10, 2008 2:49:28 PM com.sun.grizzly.standalone.StaticResourcesAdapter <init>
INFO: New Servicing page from: C:\Users\Arun Gupta\BitNami JRubyStack projects\jrubystack\public
Mar 10, 2008 2:49:28 PM com.sun.enterprise.rails.RailsDeployer load
INFO: Loading application . at /
Starting Rails instances
Mar 10, 2008 2:49:58 PM com.sun.grizzly.jruby.RubyObjectPool$1 run
INFO: Rails instance instantiation took : 30451ms
Mar 10, 2008 2:49:58 PM com.sun.enterprise.v3.server.AppServerStartup run
INFO: Startup service : Application Loader
Mar 10, 2008 2:49:58 PM com.sun.enterprise.v3.server.AppServerStartup run
INFO: Glassfish v3 started in 32229 ms

Now you have a template app that can be used to experiment with different features of GlassFish Gem. A similar bundle can be easily hand-crafted using the steps described here.

More details about GlassFish and JRuby can be found @ GlassFish wiki and JRuby wiki. Help us test your application on the v3 gem and file issues in JIRA or GlassFish Issue Tracker.

Please use the gem and send us feedback on GlassFish forums, dev@glassfish or gem mailing list.

Technorati: bitnami jrubystack jruby ruby rubyonrails glassfish v3 gem

Posted by Arun Gupta in web2.0  |  Comments[0]

TOTD #28: Getting Started with Rails 2.0 Scaffold

Rails 2.0 changes the way Scaffold works. This blog walks you through the steps to create a simple CRUD application using Scaffold in Rails 2.0.

1. Download & Install JRuby 1.1 RC2.
2. Install Rails using the following command:
   
   jruby -S gem install rails
3. Create a new Rails app using the following command:
   
   cd samples; mkdir rails; cd rails
jruby -S rails books -d mysql
4. Start MySQL server in a different shell using the following command:
   
   sudo /usr/local/mysql/bin/mysqld_safe --console
5. Creat the database using the following command:
   
   cd books
jruby -S rake db:create

   This creates the database defined by RAILS_ENV (Development is default). Here are some other new database-related commands:
   
   

   db:create:all	Create all the databases (_Development, _Test, _Production)
   db:drop	Drops your database
   db:reset	Drop and Re-create your database, including migrations

6. Generate a scaffold using the following command:
   
jruby script/generate scaffold book title:string author:string isbn:string description:text
   
   The output of the command looks like:
   
      exists  app/models/
      exists  app/controllers/
      exists  app/helpers/
      create  app/views/books
      exists  app/views/layouts/
      exists  test/functional/
      exists  test/unit/
      create  app/views/books/index.html.erb
      create  app/views/books/show.html.erb
      create  app/views/books/new.html.erb
      create  app/views/books/edit.html.erb
      create  app/views/layouts/books.html.erb
      create  public/stylesheets/scaffold.css
  dependency  model
      exists    app/models/
      exists    test/unit/
      exists    test/fixtures/
      create    app/models/book.rb
      create    test/unit/book_test.rb
      create    test/fixtures/books.yml
      create    db/migrate
      create    db/migrate/001_create_books.rb
      create  app/controllers/books_controller.rb
      create  test/functional/books_controller_test.rb
      create  app/helpers/books_helper.rb
      route  map.resources :books
   
   There is no need to create the model explicitly as was the case in previous version of Rails. This creates the "db/migrate/001_create_books.rb" migration which looks like:
   
   class CreateBooks < ActiveRecord::Migration
  def self.up
    create_table :books do |t|
      t.string :title
      t.string :author
      t.string :isbn
      t.text :description

      t.timestamps
    end
  end

  def self.down
    drop_table :books
  end
end
7. Create the database tables using the following command:
   
   jruby -S rake db:migrate
8. Deploy the application on WEBrick using the following command:
   
jruby script/server
   
   The application is now available at "http://localhost:3000/books" and looks like:
   
   
   
9. Click on "New book" to see a page as shown below (with values entered):
   
   
   Click on Create button. After 2 entries have been entered, it looks like as shown below:
   
   

Posted by Arun Gupta in web2.0  |  Comments[5]

GlassFish v3 gem on JRuby 1.1 RC2

JRuby 1.1 RC2 was released earlier today an GlassFish v3 gem works like a charm on it :)

Read the complete announcement here. The key features of RC2 are:

1. 260 issues resolved
2. Large IO refactoring
3. Less memory than previous release
1. Control total number of JIT'd methods
2. Support a JIT cache between runtimes to return permgen
3. 50-70% reduction in generated methods

1. Download JRuby 1.1 RC2. 
2. Install Rails and create a simple Rails application as described in TOTD #24.
3. Install GlassFish v3 gem using the command as shown below:
   
   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
Successfully installed glassfish-0.1.1-universal-java
1 gem installed
4. And now the simple application can be easily deployed on GlassFish gem as:
   
   jruby -S glassfish_rails hello
   
   Notice this command needs to be given from the parent directory of the application. The Applcation environment is as shown below:
   
   
   
   and the application output looks like exactly as expected:
   
   

Posted by Arun Gupta in web2.0  |  Comments[2]

GlassFish v3 Gem - 0.1.1 available

Pramod released an updated version 0.1.1 of the JRuby GlassFish v3 gem.

What's New ? - Mainly alignment with Rails convention

1. The name of the gem is changed from "GlassFish" to "glassfish".
2. The default port number is 3000.
3. Applications are deployed at root context ("/"). So the default application is now deployed "http://localhost:3000/home/index" instead of "http://localhost:8080/temp/home/index".

1. The number of concurrent requests can now be set using a command-line argument (instead of "-J-Djruby.runtime"). So 2 Rails instances can be created using the following command:
   
   jruby -S glassfish_rails temp -n 2
2. Rails instances are created in parallel to improve the startup time of the gem.

Posted by Arun Gupta in web2.0  |  Comments[7]

GlassFish v3 Ruby Gem - New Home on RubyForge

GlassFish v3 Gem allows JRuby-on-Rails application to be launched in GlassFish v3 server. It provides a robust alternative to WEBrick and Mongrel for development and deployment of your JRuby-on-Rails applications.

• The Gem replaces WEBrick as the development container and a pack of Mongrels front-ended by light-weight Web server + Capistrano for management by one command and one process (think "eco-friendly").
• Works with both JRuby 1.0.3 and JRuby 1.1RC1.
• Multiple applications can be deployed in one instance of gem, each in their own context root and running on separate ports (details below).
• Each application can serve multiple requests concurrently. This can be configured by the number of JRuby runtimes using -J-Djruby.runtime as a command-line property (details below).
• The applications deployed on this Gem can easily make use of pooled resources such as database connections as explained in TOTD #9.
• The released version is 0.1.0. Even though a preview version of Gem was released earlier, the version number is starting from scratch because of the newly found permanent home. 
• Installing the Gem is a seamless and integrated process as explained below.

Posted by Arun Gupta in web2.0  |  Comments[18]

GlassFish v3 Gem Updated

Pramod published an updated JRuby Gem for GlassFish v3. Download the gem here.

Here are the updates from last time:

1. The Gem is now smaller - 2.4 MB instead of 2.9 MB (approx 20% smaller).
2. The Gem is now using the latest v3 codebase, including Grizzly JRuby module 1.6.1.
3. 2 Rails instances are created instead of the default one. So now 2 requests can be invoked in parallel and they both will be served instead of returning a blank page for the pending request. This explains/resolves the issue reported here.
4. The list of known issues is now available
   
   
   1. #3856 - Default Rails page gives 404
   2. #3964 - Option to specify port at the command-line
   3. #3965 - Port conflict should be resolved transparently
   4. #3966 - Blank page returned if no Rails instance is available
   5. #3968 - Provide a means to configure number of Rails instances
   6. #3971 - Usage of v3 gem needs to be consistent with WEBrick
      
   
   Please file bugs if you see any other issues.

1. Create a template app as:
   
   jruby -S rails hello
2. Create a controller and view as:
   
   cd hello
jruby script/generate controller say hello
3. Edit controller as:
   
   vi app/controllers/say_controller.rb
   
   and add the following variable in hello helper method:
   
   @hello_string = "v3 Gem is getting polished!"
4. Edit view as:
   
   vi app/views/say/hello.rhtml
   
   and add the following string at the bottom:
   
   <%= @hello_string %>
5. Ad deploy the application on GlassFish v3 gem as:
   
   cd ..
jruby -S glassfish_rails hello

Technorati: ruby jruby glassfish v3 gem

Posted by Arun Gupta in web2.0  |  Comments[3]

JRuby 1.0.3 + Rails 2.0 Hello World - Additional Steps Required

JRuby 1.0.3 was recently released and so was Rails 2.0. I decided to try JRuby 1.0.3 + Rails 2.0 and realized that a few additional steps (because of Rails 2.0) are required to get a trivial Hello World applcation up and running. Here are the steps:

1. Unzip JRuby 1.0.3.
1. Make sure to set JAVA_HOME and JRUBY_HOME.
2. Also include JAVA_HOME/bin and JRUBY_HOME/bin in PATH for convenience.
2. Install Rails 2.0 as shown below:
   
   ~/samples/jruby arungupta$ jruby -S gem install rails --include-dependencies --no-ri --no-rdoc
Bulk updating Gem source index for: http://gems.rubyforge.org
Successfully installed rails-2.0.2
Successfully installed activesupport-2.0.2
Successfully installed activerecord-2.0.2
Successfully installed actionpack-2.0.2
Successfully installed actionmailer-2.0.2
Successfully installed activeresource-2.0.2
3. Create a simple app using the following steps
1. Create a template app as:
   
   jruby -S rails --database mysql hello or jruby -S rails -d mysql hello
   
   It's important to specify --database mysql otherwise Rails 2.0 uses sqlite3 as the default database.
   
2. Add a Controller and View as:
   
cd hello
jruby script/generate controller say hello
3. Edit the controller as:
   
   vi app/controllers/say_controller.rb
   
   and add the following variable in "hello" helper method:
   
   @hello_string = ""
4. Edit the View as:
   
   vi app/views/say/hello.html.erb
   
   and add the following as last line:
   
<%= @hello_string %>
   
   Notice, the view extension is .html.erb instead of .rhtml.
4. Download, Install and Configure MySQL (additional step for Rails 2.0)
1. Mac OS comes pre-installed with MySQL in /usr/local/mysql directory. Start the server as:
   
   sudo ./bin/mysqld_safe
   
   Alternatively, you can download and install MySQL Universal server (only .dmg format, not tar.gz format as specified here).
2. Create a database as:
   
   sudo ./bin/mysqladmin create hello_development
5. Start the WEBrick server (in hello directory) as:
   
   jruby script/server

Posted by Arun Gupta in web2.0  |  Comments[4]

TOTD #18: How to Build The GlassFish v3 Gem for JRuby ?

Jerome posted the instructions to build GlassFish v3 Gem for JRuby - very simple and easy. A binary version of Gem is available here.

1. Software pre-requisite
   1. Subversion client (for example Tigris)
   2. Maven 2.0.x
   3. JRuby 1.0.x (I used JRuby 1.0.2 and lets say installed in JRUBY_HOME).  Make sure JRUBY_HOME/bin is in your path.
2. Build the Gem

   1. As explained in Jerome's entry, you can check out complete GlassFish v3 workspace or just the Gem code. Here is how you'll check out only the Gem code on a Windows machine using Tigris Subversion client:
      
      
      
      And after the check out is complete, you'll see:
      
      

   2. Build the gem by giving the command:
      
      mvn install
      
      And success is achieved by seeing the following in the console:
      
      [INFO] (in C:/workspaces/glassfish/gem/target/dependency/glassfish)
[WARNING] mkdir -p pkg
[INFO] Successfully built RubyGem
[INFO] Name: GlassFish
[WARNING] mv GlassFish-10.0.0-java.gem pkg/GlassFish-10.0.0-java.gem
[INFO] Version: 10.0.0
[INFO] File: GlassFish-10.0.0-java.gem
[INFO] [install:install]
[INFO] Installing C:\workspaces\glassfish\gem\target\gem-10.0-SNAPSHOT.jar to C:\Users\Arun Gupta\.m2\repository\org\glassfish\distributions\gem\10.0-SNAPSHOT\gem-10.0-SNAPSHOT.jar
[INFO] [install:install-file {execution: install-gem}]
[INFO] Installing C:\workspaces\glassfish\gem\target\dependency\glassfish\pkg\GlassFish-10.0.0-java.gem to C:\Users\Arun Gupta\.m2\repository\org\glassfish\distributions\GlassFish-Gem\10.0-SNAPSHOT\GlassFish-Gem-10.0-SNAPSHOT.gem
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2 minutes 2 seconds
[INFO] Finished at: Fri Nov 16 17:56:12 PST 2007
[INFO] Final Memory: 11M/20M
[INFO] ------------------------------------------------------------------------

The Gem is available in target\dependency\glassfish\pkg directory.
3. Install the Gem
   1. Change to the directory where the Gem is available
      
      cd target\dependency\glassfish\pkg
   2. Install the Gem as:
      
      C:\testbed\ruby\jruby-1.0.2\bin\jruby -S gem install GlassFish-10.0.0-java.gem
Successfully installed GlassFish, version 10.0.0

And use it!

Please leave suggestions on other TOTD that you'd like to see. A complete archive is available here.

Technorati: totd v3 jruby ruby rubyonrails glassfish gem jrubyonglassfish

Posted by Arun Gupta in Finance  |  Comments[2]

Mephisto with GlassFish v3 Gem

In an Earlier Post, I described how Mephisto (a popular web publishing system based on Ruby on Rails) can be deployed on GlassFish V3. Both JRuby and GlassFish has matured since then and this post will provide the updated instructions to deploy Mephisto using GlassFish v3 Gem.

Here are the exact steps:

1. Install and Configure JRuby 1.0.2. The GlassFish v3 Gem does not work on Windows (JRUBY-1549) with JRuby 1.0.2 and you need to use the JRuby trunk workaround.
   1. Download and Unzip JRuby1.0.2 (lets say JRUBY_HOME).
   2. Include 'JRUBY_HOME/bin' in your environment PATH.
   3. Install Rails (with all dependencies) in JRuby installation by giving the command:
      
      C:\workspaces\jruby-trunk>bin\jruby -S gem install rails --include-dependencies --no-ri --no-rdoc
Bulk updating Gem source index for: http://gems.rubyforge.org
Successfully installed rails-1.2.5
Successfully installed activesupport-1.4.4
Successfully installed activerecord-1.15.5
Successfully installed actionpack-1.13.5
Successfully installed actionmailer-1.3.5
Successfully installed actionwebservice-1.2.5
   4. Install ActiveRecord-JDBC as shown below:
      
      C:\workspaces\jruby-trunk>bin\jruby -S gem install activerecord-jdbc -y --no-rdoc --no-ri
Need to update 1 gems from http://gems.rubyforge.org
.
complete
Successfully installed ActiveRecord-JDBC-0.5
2. Download and Install GlassFish V3 Gem.
3. Install and Configure Database
   1. Download and install MySQL Community Server 5.0 (lets say MYSQL_HOME).
   2. Start MySQL database by giving the command 'mysqld-nt --user root --console' in MYSQL_HOME/bin directory on Windows or './bin/mysqld_safe' from MYSQL_HOME directory on Unix flavors.
   3. In a different shell window, create a database and grant privileges by giving the following commands:
       
      C:\Program Files\MySQL\MySQL Server 5.0\bin>mysqladmin --u root create mephisto_development

C:\Program Files\MySQL\MySQL Server 5.0\bin>mysql -u root
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.0.45-community-nt MySQL Community Edition (GPL)

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql> grant all on mephisto_development.* to arun@localhost identified by 'noway';
Query OK, 0 rows affected (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> quit;
Bye
4. Install and Configure Mephisto
   1. Download and Unzip Mephisto 0.7.3.
   2. Install Mephisto as described here. The two steps are summarized below for convenience:
      1. Copy 'MEPHISTO_HOME/config/database.example.yml' to 'MEPHISTO_HOME/config/database.yml'. There is no need to specify the JDBC adapter ActiveRecord 0.5 onwards and that allows to use the default database configuration file.
      2. Bootstrap the development database using the command:
         
         C:\testbed\mephisto-0.7.3>jruby -S rake db:bootstrap -J-DRAILS_ENV=development

         and that shows the following output in the console:
         
(in C:/testbed/mephisto-0.7.3)
mkdir -p C:/testbed/mephisto-0.7.3/config/../log
-- create_table("assets", {:force=>true})
-> 0.3330s
-- create_table("assigned_sections", {:force=>true})
-> 0.2000s
-- create_table("cached_pages", {:force=>true})
-> 0.2980s
-- create_table("content_versions", {:force=>true})
-> 0.2130s
-- create_table("contents", {:force=>true})
-> 0.2190s
-- create_table("events", {:force=>true})
-> 0.2680s
-- create_table("memberships", {:force=>true})
-> 0.1890s
-- create_table("sections", {:force=>true})
-> 0.1500s
-- create_table("sessions", {:force=>true})
-> 0.1200s
-- add_index("sessions", ["session_id"], {:name=>"sessions_session_id_index"})
-> 0.3220s
-- create_table("sites", {:force=>true})
-> 1.1240s
-- add_index("sites", ["host"], {:name=>"index_sites_on_host"})
-> 0.3490s
-- create_table("taggings", {:force=>true})
-> 0.1950s
-- create_table("tags", {:force=>true})
-> 0.1840s
-- create_table("users", {:force=>true})
-> 0.2750s
-- initialize_schema_information()
-> 0.2740s
-- columns("schema_info")
-> 0.0170s
copied default theme to C:/testbed/mephisto-0.7.3/config/../themes/site-1...

================================================================================

Thank you for trying out Mephisto 0.7.3: Noh-Varr Edition!

Now you can start the application with script/server, visit
http://mydomain.com/admin, and log in with admin / test.

For help, visit the following:
Official Mephisto Site - http://mephistoblog.com
The Mephisto Community Wiki - http://mephisto.stikipad.com/
The Mephisto Google Group - http://groups.google.com/group/MephistoBlog
5. Deploy Mephisto on GlassFish v3 Gem as shown below:
   
   C:\testbed>\workspaces\jruby-trunk\bin\jruby -S glassfish_rails mephisto-0.7.3

And that shows the following output in the console:

Nov 14, 2007 6:37:51 PM com.sun.enterprise.v3.services.impl.GrizzlyAdapter postConstruct
INFO: Listening on port 8080
Nov 14, 2007 6:37:51 PM com.sun.enterprise.v3.services.impl.DeploymentService postConstruct
INFO: Supported containers : php,phobos,jruby,web
Nov 14, 2007 6:37:52 PM com.sun.grizzly.standalone.StaticResourcesAdapter <init>
INFO: New Servicing page from: C:\testbed\mephisto-0.7.3\public
Nov 14, 2007 6:38:00 PM com.sun.enterprise.v3.server.AppServerStartup run
INFO: Glassfish v3 started in 9054 ms
6. Mephisto is now deployed at http://localhost:8080/mephisto-0.7.3
   
   
   
   and shows the following output in GlassFish console:
   
   Nov 14, 2007 6:24:08 PM sun.reflect.NativeMethodAccessorImpl invoke0
INFO:

Processing MephistoController#dispatch (for 127.0.0.1 at 2007-11-14 18:24:08) [GET]

Nov 14, 2007 6:24:08 PM sun.reflect.NativeMethodAccessorImpl invoke0
INFO: Parameters: {"action"=>"dispatch", "controller"=>"mephisto", "path"=>[]}

Nov 14, 2007 6:24:09 PM sun.reflect.NativeMethodAccessorImpl invoke0
INFO: ←[4;36;1mSQL (0.001000)←[0m ←[0;1mSET SQL_AUTO_IS_NULL=0←[0m

Nov 14, 2007 6:24:09 PM sun.reflect.NativeMethodAccessorImpl invoke0
INFO: ←[4;35;1mSite Columns (0.046000)←[0m ←[0mSHOW FIELDS FROM sites←[0m

Nov 14, 2007 6:24:09 PM sun.reflect.NativeMethodAccessorImpl invoke0
INFO: ←[4;36;1mSite Load (0.010000)←[0m ←[0;1mSELECT * FROM sites WHERE (sites.`host` = 'localhost') LIMIT 1←[0m

Nov 14, 2007 6:24:09 PM sun.reflect.NativeMethodAccessorImpl invoke0
INFO: ←[4;35;1mSite Load (0.017000)←[0m ←[0mSELECT * FROM sites ORDER BY id LIMIT 1←[0m

Nov 14, 2007 6:24:09 PM sun.reflect.NativeMethodAccessorImpl invoke0
INFO: ←[4;36;1mSection Columns (0.010000)←[0m ←[0;1mSHOW FIELDS FROM sections←[0m

Nov 14, 2007 6:24:09 PM sun.reflect.NativeMethodAccessorImpl invoke0
INFO: ←[4;35;1mSection Load (0.005000)←[0m ←[0mSELECT * FROM sections WHERE (sections.site_id =1) AND (sections.`path` = '') LIMIT 1←[0m

Nov 14, 2007 6:24:09 PM sun.reflect.NativeMethodAccessorImpl invoke0
INFO: ←[4;36;1mArticle Columns (0.024000)←[0m ←[0;1mSHOW FIELDS FROM contents←[0m

Nov 14, 2007 6:24:09 PM sun.reflect.NativeMethodAccessorImpl invoke0
INFO: ←[4;35;1mUser Columns (0.013000)←[0m ←[0mSHOW FIELDS FROM users←[0m

Nov 14, 2007 6:24:09 PM sun.reflect.NativeMethodAccessorImpl invoke0
INFO: ←[4;36;1mArticle Load Including Associations (0.027000)←[0m ←[0;1mSELECT contents.`id` AS t0_r0, contents.`article_id` AS t0_r1, contents.`user_id` AS t0_r2, contents.`title` AS t0_r3, contents.`permalink` AS t0_r4, contents.`excerpt` AS t0_r5, contents.`body` AS t0_r6, contents.`excerpt_html` AS t0_r7, contents.`body_html` AS t0_r8, contents.`created_at` AS t0_r9, contents.`updated_at` AS t0_r10, contents.`published_at` AS t0_r11, contents.`type` AS t0_r12, contents.`author` AS t0_r13, contents.`author_url` AS t0_r14, contents.`author_email` AS t0_r15, contents.`author_ip` AS t0_r16, contents.`comments_count` AS t0_r17, contents.`updater_id` AS t0_r18, contents.`version` AS t0_r19, contents.`site_id` AS t0_r20, contents.`approved` AS t0_r21, contents.`comment_age` AS t0_r22, contents.`filter` AS t0_r23, contents.`user_agent` AS t0_r24, contents.`referrer` AS t0_r25, users.`id` AS t1_r0, users.`login` AS t1_r1, users.`email` AS t1_r2, users.`crypted_password` AS t1_r3, users.`salt` AS t1_r4, users.`activation_code` AS t1_r5, users.`activated_at` AS t1_r6, users.`created_at` AS t1_r7, users.`updated_at` AS t1_r8, users.`deleted_at` AS t1_r9, users.`token` AS t1_r10, users.`token_expires_at` AS t1_r11, users.`filter` AS t1_r12, users.`admin` AS t1_r13 FROM contents LEFT O
UTER JOIN users ON users.id = contents.user_id INNER JOIN assigned_sections ON contents.id = assigned_sections.article_id WHERE ((assigned_sections.section_id = 1)) AND (contents.published_at <= '2007-11-15 02:24:09' AND contents.published_at IS NOT NULL) AND ( (contents.`type` = 'Article' ) ) ORDER BY contents.published_at desc LIMIT 15←[0m

Nov 14, 2007 6:24:09 PM sun.reflect.NativeMethodAccessorImpl invoke0
INFO: ←[4;35;1mSection Load (0.009000)←[0m ←[0mSELECT * FROM sections WHERE (sections.site_id =1) ORDER BY position←[0m

Nov 14, 2007 6:24:09 PM sun.reflect.NativeMethodAccessorImpl invoke0
INFO: Completed in 1.12200 (0 reqs/sec) | Rendering: 0.00100 (0%) | DB: 0.16200 (14%) | 200 OK [http://localhost/mephisto-0.7.3]

Nov 14, 2007 6:24:11 PM sun.reflect.NativeMethodAccessorImpl invoke0
INFO:

Processing AssetsController#show (for 127.0.0.1 at 2007-11-14 18:24:11) [GET]

Nov 14, 2007 6:24:11 PM sun.reflect.NativeMethodAccessorImpl invoke0
INFO: Parameters: {"ext"=>"css", "dir"=>"stylesheets", "action"=>"show", "controller"=>"assets", "path"=>"main"}

Nov 14, 2007 6:24:11 PM sun.reflect.NativeMethodAccessorImpl invoke0
INFO: ←[4;36;1mSite Columns (0.030000)←[0m ←[0;1mSHOW FIELDS FROM sites←[0m

Nov 14, 2007 6:24:11 PM sun.reflect.GeneratedMethodAccessor5 invoke
INFO: ←[4;35;1mSite Load (0.018000)←[0m ←[0mSELECT * FROM sites WHERE (sites.`host` = 'localhost') LIMIT 1←[0m

Nov 14, 2007 6:24:11 PM sun.reflect.GeneratedMethodAccessor5 invoke
INFO: ←[4;36;1mSite Load (0.011000)←[0m ←[0;1mSELECT * FROM sites ORDER BY id LIMIT 1←[0m

Nov 14, 2007 6:24:12 PM sun.reflect.GeneratedMethodAccessor5 invoke
INFO: Completed in 0.33500 (2 reqs/sec) | Rendering: 0.00100 (0%) | DB: 0.05900 (17%) | 200 OK [http://localhost/mephisto-0.7.3/stylesheets/main.css]

Nov 14, 2007 6:24:14 PM sun.reflect.GeneratedMethodAccessor5 invoke
INFO:

Processing AssetsController#show (for 127.0.0.1 at 2007-11-14 18:24:14) [GET]

Nov 14, 2007 6:24:14 PM sun.reflect.GeneratedMethodAccessor5 invoke
INFO: Parameters: {"ext"=>"png", "dir"=>"images", "action"=>"show", "controller"=>"assets", "path"=>"bg"}

Nov 14, 2007 6:24:14 PM sun.reflect.GeneratedMethodAccessor5 invoke
INFO: ←[4;35;1mSite Columns (0.009000)←[0m ←[0mSHOW FIELDS FROM sites←[0m

Nov 14, 2007 6:24:14 PM sun.reflect.GeneratedMethodAccessor5 invoke
INFO: ←[4;36;1mSite Load (0.017000)←[0m ←[0;1mSELECT * FROM sites WHERE (sites.`host` = 'localhost') LIMIT 1←[0m

Nov 14, 2007 6:24:14 PM sun.reflect.GeneratedMethodAccessor5 invoke
INFO: ←[4;35;1mSite Load (0.007000)←[0m ←[0mSELECT * FROM sites ORDER BY id LIMIT 1←[0m

Nov 14, 2007 6:24:14 PM sun.reflect.GeneratedMethodAccessor5 invoke
INFO: Sending data bg.png

Nov 14, 2007 6:24:14 PM sun.reflect.GeneratedMethodAccessor5 invoke
INFO: Completed in 0.27900 (3 reqs/sec) | Rendering: 0.00000 (0%) | DB: 0.03300 (11%) | 200 OK [http://localhost/mephisto-0.7.3/images/bg.png]
7. The exact same application can be easily deployed on WEBrick as shown below:
   
   C:\testbed\mephisto-0.7.3>\testbed\ruby\jruby-1.0.2\bin\jruby script\server
=> Booting WEBrick...
=> Rails application started on http://0.0.0.0:3000
=> Ctrl-C to shutdown server; call with --help for options
[2007-11-14 18:17:57] INFO WEBrick 1.3.1
[2007-11-14 18:17:57] INFO ruby 1.8.5 (2007-11-01) [java]
[2007-11-14 18:17:58] INFO WEBrick::HTTPServer#start: pid=11245030 port=3000
127.0.0.1 - - [14/Nov/2007:18:18:11 PST] "GET / HTTP/1.1" 200 1326

In this case, Mephisto gets deployed at http://localhost:3000 and WEBrick console shows the following:

- -> /
127.0.0.1 - - [14/Nov/2007:18:18:14 PST] "GET /stylesheets/main.css HTTP/1.1" 200 3168
http://localhost:3000/ -> /stylesheets/main.css
127.0.0.1 - - [14/Nov/2007:18:18:17 PST] "GET /favicon.ico HTTP/1.1" 200 0
- -> /favicon.ico
127.0.0.1 - - [14/Nov/2007:18:18:16 PST] "GET /images/bg.png HTTP/1.1" 200 142
http://localhost:3000/stylesheets/main.css -> /images/bg.png

This shows how a popular Ruby application can be deployed on WEBrick or GlassFish V3 Gem without any change.

Let us know if you have tried other Rails applications on GlassFish v3 by leaving a comment.

Technorati: glassfish mephisto rubyonrails ror jrubyonglassfish v3 gem ruby jruby

Posted by Arun Gupta in web2.0  |  Comments[3]