Thursday, August 28, 2008

Add your own commands to WLST

Do you want to add your own commands to the already rich set of WLST commands?

You can do so by building your own *.py file and adding them to WL_HOME/common/wlst/lib folder. Any *.py file added to this folder will be automatically compiled and imported by WLST when started on that machine. So the custom commands built as definitions inside these modules can be used by calling them on the respective module names.

If you have a stored under WL_HOME/common/wlst/lib folder:
def testCmd():
print 'This is a test command'

And if there is a definition called testCmd() defined in it then you can call it as follows:


What you waiting for? Go and add you command to WLST now.

Monday, August 25, 2008

Finally Embedded LDAP dependency is gone!

WebLogic Security Realm is a collection of configuration that protects a WebLogic Domain, its application and resources. Until WebLogic Server 10.3 the default store (Security Provider Database) used for security configuration such as users, groups, roles, policies etc. is the Embedded LDAP Server. But many customers want to externalize these information from WebLogic's Embedded LDAP Server. Different options are available only to externalize the authentication information to an external LDAP server, RDBMS etc. But still other information like authorization information, role mapping etc. stayed within the Embedded LDAP server.

With WebLogic Server 10.3 now you can choose to use an external RDBMS as a security provider database to store all security provider information. This removes the dependency of Embedded LDAP server. The other options is to build custom security providers which can use properties file as security provider database. Now you can build a WebLogic domain with no dependency to bundled Embedded LDAP server.

See for more info on how to configure a RDBMS based security provider database. One of the key thing to note is that the tables should be manually created using the appropriate *.sql file available from BEA_HOME/wlserver_10.3/server/lib directory. The domain's security provider database can be based on RDBMS when you create the domain using Configuration Wizard or later using Administration Console. Also the default Authentication Provider that comes with the default security realm - myrealm is Embedded LDAP based. So if you want to completely avoid the dependency with Embedded LDAP server then after the domain is created you have to create an Authentication provider that will use an external user repository (RDBMS, external LDAP etc.)

You can configure a domain to use RDBMS based security provider database during the domain creation using Domain Configuration Wizard.

But make sure that the tables are created before starting the Administration server according to the *.sql files provided with WebLogic installation.

If you created the domain with the default configuration (Embedded LDAP server as the security provider database) then you can change the domain configuration later to use RDBMS based security provider database.

Will meet you all with more exciting new features from Oracle WebLogic Server 10gR3!

Friday, August 15, 2008

New Flexible WebLogic 10gR3 Installer

Before installing WebLogic Server 10.3 you can now customize and select various components you want to install. I already wrote about this in my other post on WebLogic Server 10.3 Tech Preview. But here is the updated screens shot from the GA release which is now called as Oracle WebLogic Server 10gR3.

The new cool feature that customers will really benefit from is the information about the approximate install size of these different products and components so that you can reduce your server installation footprint.

Also now you can choose which JVM you need to install from the default JVMs that Oracle ships with WebLogic Server 10gR3 (Hotspot and JRockit). In addition if you already have local JDK you can select that during installation.

Along the same line you can choose to install Eclipse or use an existing Eclipse installation for Workshop.

Free Workshop Eclipse Plug-in

In addition to the standard IDE - JDeveloper, Oracle is also providing Eclipse tools (plug-ins) for WebLogic Server 10gR3. Oracle made it really simple for developers by making them as a single install. Also the Workshop Eclipse Plug-ins are now free - Yes! Oracle removed the licensing on them with the new WebLogic Server 10gR3.

Go here to download Workshop for WebLogic 10gR3 -
Workshop is now a one-stop-shop for building Java EE components and Web Service components for not just WebLogic Server but for a variety of different application servers. Yes, Workshop for WebLogic will be freely available on all supported platforms, including websphere, weblogic, tomcat, jboss, jetty and resin. But Adobe Flex Builder bundle has been removed from the Workshop for WebLogic bundle.

Now Workshop can be used for building Struts, Spring, Tiles, Hibernate, JPA and many more Java components to run on a variety of different web containers. Try now!