Character Transform Pipeline Item Template

A character transform pipeline item template takes a character stream as input and generates a character stream as output. In order to facilitate a custom transform of the character stream, the user has to specify in a JSR-223 compliant script, the implementation of the following function:

public abstract char[] transformBuffer(char[] buffer, int offset, int length);

This will be called once for each buffer being read from the source character stream. When the source character stream is complete, this function will be called once more with a length parameter of -1.