In this section, we’ll examine a variety of ESB products. These products do much of what the open source products do and generally add features around ease of use, integration with other products on their platforms (such as IDEs or repositories), and of course performance and reliability claims. In many cases, they are not cheap; some of the ESBs in Gartner’s magic quadrant can run more than $75,000 per processor.
Some of the leading ESBs on the market include the following:
IBM WebSphere ESB and DataPower.
Sonic ESB. They were one of the first in the business, and their chief technology evangelist is David Chappell, author of Enterprise Service Bus (O’Reilly) (http://oreilly.com/catalog/9780596006754).
TIBCO BusinessWorks and ActiveMatrix Grid.
Cape Clear. They offer two versions of their ESB, one that is standalone and another that can be integrated with IBM WebSphere.
iWay Software. This New York-based software company offers an adapter-based ESB that is capable of wrapping IBM CICS, Tuxedo, and .NET applications natively.
At this point, because ESBs can differ in functionality and features more than, say, the application servers we might be used to, let’s look at a few of the large stack vendor’s ESB products to see what differentiates them.
BEA released AquaLogic Service Bus 3.0 in late 2007. After Oracle bought BEA in the middle of 2008, the bus was rebranded to Oracle Service Bus (OSB) 10.3. Before Oracle purchased BEA, it sold an ESB of its own ...