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Modernizing Oracle Tuxedo Applications with Python

Modernizing Oracle Tuxedo Applications with Python

By : Kalvans
4.8 (8)
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Modernizing Oracle Tuxedo Applications with Python

Modernizing Oracle Tuxedo Applications with Python

4.8 (8)
By: Kalvans

Overview of this book

Despite being developed in the 1980s, Oracle Tuxedo still runs a significant part of critical infrastructure and is not going away any time soon. Modernizing Oracle Tuxedo Applications with Python will help you get to grips with the most important Tuxedo concepts by writing Python code. The book starts with an introduction to Oracle Tuxedo and guides you in installing its latest version and Python bindings for Tuxedo on Linux. You'll then learn how to build your first server and client, configure Tuxedo, and start running an application. As you advance, you'll understand load balancing and work with the BBL server, which is at the heart of a Tuxedo application. This Tuxedo book will also cover Boolean expressions and different ways to export Tuxedo buffers for storage and transmission, before showing you how to implement servers and clients and use the management information base to change the configuration dynamically. Once you've learned how to configure Tuxedo for transactions and control them in application code, you'll discover how to use the store-and-forward functionality to reach destinations and use an Oracle database from a Tuxedo application. By the end of this Oracle Tuxedo book, you'll be able to perform common Tuxedo programming tasks with Python and integrate Tuxedo applications with other parts of modern infrastructure.
Table of Contents (18 chapters)
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1
Section 1: The Basics
6
Section 2: The Good Bits
12
Section 3: Integrations

Using tpadmcall to create TUXCONFIG

By using tpadmcall, we can skip the textual configuration file and create the binary configuration file directly. To avoid cryptic error messages, ensure you have no other application running and that the file in the $TUXCONFIG environment variable does not exist. To shut down the application and to remove the file in the $TUXCONFIG environment variable, run the following commands:

tmshutdown -y
rm -f $TUXCONFIG

The configuration files we created so far consist of RESOURCES, MACHINES, GROUPS, and SERVICES sections. The MIB operates on the same sections but calls them classes.

We start by creating the T_DOMAIN record, which is the same as the RESOURCES section, the textual representation, and by specifying the same parameter values. The main difference when compared to the configuration file is the TA_ prefix for the parameter name, as shown in the following code snippet:

import tuxedo as t
t.tpadmcall({
     ...

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