In Spark a transformer is used to convert a Dataframe in to another. But due to the immutability of Dataframes  (i.e: existing values of a Dataframe cannot be changed), if we need to transform values in a column, we have to create a new

Java Profiling can help you to identify asses the performance of your program, improve your code and identify any defects such as memory leaks, high CPU usages, etc. Here I will discuss on how to profile your code using the java inbuilt utility

ESB Analytics Server is the analytics distribution for the WSO2 ESB, which is built on top of WSO2 Data Analytics Server (DAS).  Analytics for ESB consists of an inbuilt dashboard for Statistics and Tracing visualization for Proxy Services, APIs, Endpoints, Sequence and Mediators.