Installing Jython and Django

To develop Jython on Django applications for Enterprise Server, you must do the following :

• Install Jython

• Install Django

• Install the Jython container for Enterprise Server

Jython can be installed in one of the following ways:

• Install Jython as a standalone product

• Install Jython from GlassFish Update Center

The following sections explain these tasks in more detail.

To Install Jython as Standalone

You can download Jython and install it as a standalone product. If Jython is installed as standalone, you need to inform the Jython install location to the Enterprise Server.

1. Download Jython from the following location:

   http://downloads.sourceforge.net/project/jython/jython/2.5.1/jython_installer-2.5.1.jar

2. Run the installer as follows:

   java -jar jython_installer-2.5.1.jar

3. Set the following environmental variables:

   Set the JYTHON_HOME variable to the Jython install location:

   export JYTHON_HOME=/jython-install-location

   Add the JYTHON_HOME/bin directory to the path:

   export PATH=$JYTHON_HOME/bin:$PATH

   You should now be able to invoke Jython from command line as follows:

   jython

4. Inform and configure the Enterprise Server with the location of Jython installation with the following command:

   asadmin deploy --property jython.home=/jython-install-location

To Install Jython from Update Center

The GlassFish Update Center provides a Jython package. The package installs a Jython instance that enables creation of Jython applications for the Enterprise Server. If you installed Jython from Update Center, there is no need for further configuration of jython.home property.

1. Start the Update Tool with the following command:

   as-install/bin/updatetool

2. Choose the following option from Available Add-ons and click Install:

   Jython Runtime IPS package for GlassFish v3

   Update center automatically completes the installation of the container and configures it for use with Enterprise Server.

3. Set the following environmental variables:

   Set the JYTHON_HOME variable to the Jython install location:

   export JYTHON_HOME=/as-install/glassfish/jython

   Add the JYTHON_HOME/bin directory to the path:

   export PATH=$JYTHON_HOME/bin:$PATH

   You should now be able to invoke Jython from command line as follows:

   jython

To Install Django

1. Download Django from the following location:

   http://media.djangoproject.com/releases/1.1.1/Django-1.1.1.tar.gz.

2. Extract the tar file:

   gunzip Django-1.1.1.tar.gz

   tar -xvf Django-1.1.1.tar

3. Change to the extracted directory:

   cd Django-1.1.1

4. Install Django with the following command:

   jython setup.py install

To Install Jython Container for Sun GlassFish Enterprise Server

The GlassFish Update Center provides the Jython container package. With this task you can install Jython Container module and Grizzly adapter JAR files in the as-install/glassfish/modules directory, and enable deployment of Jython/Django applications on the Enterprise Server.

1. Start the Update Center with the following command:

   as-install/bin/updatetool

2. Choose the following option from Available Add-ons and click Install:

   GlassFish V3 Jython Container

   Update center automatically completes the installation of the container and configures it for use with Enterprise Server.

3. Start the Enterprise Server:

   asadmin start-domain -v

4. Test the configuration with the following process:

   1. Change to Django examples directory:

      cd Django-1.1.1/samples

   2. Deploy the example applications on the server:

      asadmin deploy .

   3. Access the deployed example applications from browser:

      http://localhost:8080/examples

To Install Jython Support Libraries for Django

The django-jython project created database back-ends and management commands for Django and Jython application development. With this task you can install the django-jython packages and enable database support for Django.

1. Download the django-jython packages from the following location:

   http://django-jython.googlecode.com/files/django-jython-1.0.0.tar.gz

2. Extract the tar file:

   gunzip django-jython-1.0.0.tar.gz

   tar -xvf django-jython-1.0.0.tar

3. Change to the extracted directory:

   cd django-jython-1.0.0

4. Install the package:

   jython setup.py install