Archive for the ‘WebSphere’ Category

FREE BETA: Sun Certified Developer for Java Web Services (SCDJWS)

Sun Microsytems has announced the new FREE BETA Sun Certified Developer for Java Web Services exam. This new exam tests on the Java 2 Platform, Enterprise Edition 5.

As a FREE BETA test you don’t need a voucher to take the exam.

Beta Dates: October 31st, 2008 thru November 21st, 2008

Registration Exam Start Date: October 29th, 2008 – November 7th, 2008

Recommended Prerequisites

  • Prior to attempting this certification, candidates MUST be certified as a Sun Certified Programmer (SCJP), any edition
  • Candidates should have at least six to twelve months experience developing Java Web Service

To see the test objectives go to the site: http://www.sun.com/training/certification/beta_scdjws.html

I hope to take this Beta Exam so probably I will post some material I got here! Stay tuned.

See you!

Leo

Warbler 0.9.9 default servlet filter config doesn’t work with Websphere 6.1

Many people have been facing some issue when trying to deploy a JRuby on Rails package using Warbler on WebSphere AS 6.1.

One workaround is to copy the file JRUBY_HOME/lib/ruby/gems/1.8/gems/warbler-0.9.9/web.xml.erb to your app/config diretory and change it to use a Servlet instead of a Filter as below:

<!DOCTYPE web-app PUBLIC

“-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN”

  "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
  <% webxml.context_params.each do |k,v| %>
  <context-param>
      <param-name><%= k %></param-name>
      <param-value><%= v %></param-value>
  </context-param>
  <% end %>

  <listener>
      <listener-class><%= webxml.servlet_context_listener %></listener-class>
  </listener>

  <servlet>
      <servlet-name>Rails</servlet-name>
      <servlet-class>org.jruby.rack.RackServlet</servlet-class>
  </servlet>

  <servlet-mapping>
      <servlet-name>Rails</servlet-name>
      <url-pattern>/*</url-pattern>
  </servlet-mapping>

  <% if webxml.jndi then webxml.jndi.each do |jndi| %>
  <resource-ref>
      <res-ref-name><%= jndi %></res-ref-name>
      <res-type>javax.sql.DataSource</res-type>
      <res-auth>Container</res-auth>
  </resource-ref>
  <% end; end %>
</web-app>

Also instead of changing the web.xml.erb file to use Servlet you can configure your WebSphere AS to work with Rack Filter. To do that you have to:

1. Start the Websphere server and open the Administration Console
2. Set a Websphere web container custom property com.ibm.ws.webcontainer.invokefilterscompatibility = true.

If you have some difficult to find where to set this configuration tell me and I will give you the step-by-step.

I hope this tip be useful for everyone that is getting to work with JRuby On Rails on WebSphere.

All the best,

Leo