Book Overview & Buying
Table Of Contents

WSO2 Developers' Guide

By : Garrido, Prieto Estrada

Buy this Book

WSO2 Developers' Guide

By: Garrido, Prieto Estrada

Buy this Book

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.

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

Getting Started with SOA and WSO2

SOA principles

SOA organization

Technology for SOA

Downloading WSO2 Enterprise Integrator

WSO2 Update Manager

Installing WSO2 Enterprise Integrator

WSO2 EI Configuration

Summary

Developing Integration Projects with WSO2EI Tooling

Installing and running WSO2EI Tooling

Creating carbon projects

Debugging mediation

Data mapping

Summary

Building Web Services

Mediators

Sequences

Proxies

APIs

Inbound endpoints

Tasks

Summary

Building Data Services

Configuring data sources

Create wizard

Creating CRUD data services

Creating data services using WSO2 EI Tooling

Summary

Transforming the Content of the Payload

Creating new content

Change the format of the content

Enrich the message

Message transformation

Summary

Conditional Route

Checking the payload content

Boolean filtering

Multiple filtering

Advanced routing

Summary

Quality of Service

Security

Throttling

Caching

Summary

Tasks Scheduling

Configuring the server

Scheduling integration services

Scheduling data services

Custom tasks

Summary

WSO2 Enterprise Integration Logging

General enterprise integration logging

Logging the orchestration

Logging per API and per proxy service

Summary

WSO2 Enterprise Integration Testing

Testing with a built-in tester

Testing with SOAPUI

Other ways of testing

Summary

Integrating with VFS

Configuring the server

Reading files

Writing files

Transferring files

File connector

Summary

Integrating with JMS - WSO2 EI Message Brokering

Creating message queues

Publishing messages to a queue

Consuming messages from a queue

Dead Letter Channel

Connectors

Summary

Introduction to Ballerina

The Ballerina language history

The main concepts of Ballerina

Ballerina tools

Working with Ballerina

Summary

Debugging mediation

With debugging mediation, we will be able to debug our service code as we usually do with our Java applications, for instance. In this case, this feature allows us to check how the message is being changed after every step that happens inside our service. Thus, we can see how an operation performed by a mediator modifies the message.

To enable debugging mediation, you have to follow these steps:

In the WSO2EI Tooling top menu, click on Run | Debug Configurations.
Double-click on ESB Mediation Debugger, and a new configuration window will show.
We keep the default values, except for the following:
- Name: A name for the configuration; for instance, WSO2EIDebugging
- Serverhost: The host in which we will perform the debugging; in this case, localhost