Book Image

WSO2 Developer's Guide

By : Ramón Garrido, Fidel Prieto Estrada
Book Image

WSO2 Developer's Guide

By: Ramón Garrido, Fidel Prieto Estrada

Overview of this book

WSO2 Enterprise Integrator brings together the most powerful servers provided by the WSO2 company for your SOA infrastructure. As an Enterprise Service Bus (ESB), WSO2 Enterprise Integrator provides greater flexibility and agility to meet growing enterprise demands, whereas, as a Data Services Server (DSS), it provides an easy-to-use platform for integrating data stores, creating composite views across different data sources, and hosting data services. Using real-world scenarios, this book helps you build a solid foundation in developing enterprise applications with powerful data integration capabilities using the WSO2 servers. The book gets you started by brushing up your knowledge about SOA architecture and how it can be implemented through WSO2. It will help build your expertise with the core concepts of ESB such as building proxies, sequences, endpoints, and how to work with these in WSO2. Going further, you will also get well-acquainted with DSS data service concepts such as configuring data services, tasks, events, testing, and much more. The book will also cover API management techniques. Along with ESB and DSS, you will also learn about business process servers, the rules server and other components that together provide the control and robustness your enterprise applications will need. With practical use cases, the book covers typical daily scenarios you will come across while using these servers to give you hands-on experience.
Table of Contents (14 chapters)

Message transformation

In this case, we have a payload, but unlike what we had in the previous use case, the content is not at all similar to the payload we need. For that reason, we cannot use the Enrich mediator and must use the XSLT, FASTXSLT, XQuery, Smooks, or Script mediator.

In fact, we can use the Enrich mediator, but it will be less efficient than the other WSO2 toolings that we commented on.

The XSLT mediator

With this mediator, we can perform transformations over the XML message using the XSLT language. It is useful for complex transformations, or those in which the payloads change too much and it's not possible to change the message using other tools such as the Enrich mediator.

This is the syntax:

<xslt...