Okay. Enough with the preliminaries. It's time for the main event. Let's look at the jbossesb binary distribution. This is the distribution that we'll use for the remainder of the book.
As was the case with our installation of JBoss AS, to install JBoss ESB 4.10, simply select the file for download, save the file, and then unzip it.
Unzipping the jbossesb-4.10.zip file creates a directory named jbossesb-4.10 under our current directory. (Remember that we are using the /opt directory for our work with JBoss ESB.)
When you unzip the jbossesb-4.10.zip file, you'll see the following directory tree under the jbossesb-4.10 directory:
Contributors.txt: These are the names of the people who have contributed to JBoss ESB.install: This is the directory from which you'll install JBoss ESB into the JBoss AS server. We'll get back to this directory in a minute.javadocs: The code is open source, so here are the javadocs so that you can easily view the classes and methods.JBossEULA.txt: What's an EULA? The acronym stands for "End User License Agreement". These are the rules that govern how you can use or repackage JBoss ESB, and its supporting software, for commercial use.lib: This directory contains all the Java.jarfiles needed by JBoss ESB.README_FIRST.txt: The title says it all. This file includes a brief introduction to JBoss ESB, and a pointer to the community user forum.samples: These are the "quickstart" example programs. We'll describe the quickstarts in detail, and walk through how to run them, later in the book.xml: This directory deserves a closer look. If you look in this directory, you'll see a number of XSD (XML Schema Definition) files. These files define the elements used to construct JBoss ESB services.
The files named jbossesb-<version number>.xsd are especially interesting as these define the full set of JBoss ESB service configuration attributes. We'll explore these attributes, such as service providers, gateways, IDs for services, and so on in the next chapter when we take a close look at a JBoss ESB service. We'll also revisit these files when we start to use the ESB editor in JBoss Developer Studio (JBDS).