This blog post is a continuation of my performance tuning article series which you can find in this blog site. Today I will be talking about one of the heavily used component of the WSO2 ESB and how to tune the performance of ESB for transformation use cases. When we are doing transformation within ESB, we can use XSLT or FastXSLT mediators for doing complex transformations. The FastXSLT Mediator is similar to the XSLT mediator, but it uses the Streaming XPath Parser and applies the XSLT transformation to the message stream instead of to the XML message payload. The result is a faster transformation, but you cannot specify the source, properties, features, or resources as you can with the XSLT mediator. Therefore, the FastXSLT mediator is intended to be used to gain performance in cases where the original message remains unmodified. Any pre-processing performed on the message payload will not be visible to the FastXSLT mediator, because the transformation logic is applied o
Sharing the things which I learned about Enterprise Integration.