WSO2 says they have taken a fresh look at old-style,
centralized ESB architectures, and designed their unique WSO2 Enterprise Service Bus
from the ground up as the highest performance, lowest footprint, and most
interoperable service oriented architecture (SOA) and integration middleware
today. Additionally, the vendor says that by relying on their carbon technology
the ESB is able to deliver a smooth start-to-finish project experience.
Fiorano would be a good choice for small-medium businesses that need integration capabilities with clients but don't want to carry the burden of an in-house development team. The software can be used by technical non-developers and the organization offers professional services to get you off the ground. For larger organizations that have an in-house development team and a wealth of internal resources, other "enterprise grade" middleware/ESB solutions may be more applicable.
WSO2 ESB is an awesome product for companies looking to venture into the world of SOA with an ESB. They have a lot of other products too that can work really well with their carbon infrastructure. The interface is simple for deploying and managing proxy services. You can also write custom modules within the ESB using Java with IDE like Eclipse
Fioranio's underlying design is very good. In the event of a sudden shutdown, it would - in theory - be able to recover messages that were in-flight.
The visual design surface is very appealing and provides a very quick and easy way to decipher data flows. It has a definite advantage over traditional develop and document processes where documentation tends to be out of date. With Fiorano, the flow is already visualized in a relatively easy to understand way.
One thing that Fiorano had over some competitors was connections into our AS400 data queues. Not all middleware solutions have that - which is a boon for organizations that still run an iSeries in the back-end.
The support people are generally very well educated and easy to get a hold of if you have a support agreement in place.
One of the basic requirement of an ESB product is that it should be able to support transformation. WSO2 ESB provides support of XSLT, so you can transform your request to whatever format. Moreover, transformations like converting your xml payload into JSON and JSON payload to XML are out of the box available.
WSO2 ESB provides a scheduler feature, by which you can configure your own scheduler to call a proxy service at a particular time of day or or initiate sequence.
WSO2 ESB provides excellent error handling techniques, WSO2 ESB provides detailed error handling scenarios to tackle all the situations. WSO2 ESB also provides custom error handling by which you can make your own custom error message before sending it back to client.
Fiorano scalability was a problem for us - specifically we were told about a limit of the number of components that could be run on a single server. This was not explained during the pre-sales and is a serious limitation of the platform.
Some of the components in Fiorano are just poorly implemented. For instance, we used the FTP component to download a large multi-GB file. Apparently, that component requires equal RAM to file size. So, if you download a 10GB file, you'll need at least 10GB of RAM to do so.
Stability was also problematic for us - some of the components or entire data flows would suddenly stop for no reason. At time they coudln't even be restarted and we were forced to restart the Fiorano service. Not an ideal situation to be in for mission critical data flows.
Consistency is a problem for the components in Fiorano. There are wide ranges of design variations in the UI between components. Even in the same component, it could be the case that you'd have to switch back to the "old" component UI to view certain important settings. This made development more difficult.
3rd party support doesn't exist - perhaps it isn't popular enough? There isn't a community supporting Fiorano which means that problems require you to go to a support person.
Lack of auto-restart built-in capabilities. In case of running out of memory there are no built-in methods to recover from a crash, just for example, Oracle WebLogic Node Manager.
We are evaluating options such as Apache Nifi as a possible replacement for our Fiorano data flows. We've also used PilotFish technologies that has been able to fit the same use cases as Fiorano (minus the visual component). Generally the products mentioned above excelled in areas of stability and through-put compared to Fiorano, but none have been able to consolidate our ESB components into a single platform.
Fiorano added another piece of complexity to our ESB solution but has not pulled its weight as far as ROI. As we started ramping up on the product, it continued to show it's short-comings and we are working now to ramp it down. Overall, it has not been a positive experience.