getIndexWriter() is either returning null or in turn calling getParser() in the same class, except for two places as stated below.
In FileTypeHolder, for two addFileTypeHandler - "Binary" and "PSL" the getIndexWriter() method is returning a parser itself, but initializing the parser in a special way.

Shamika Gajanan Kulkarni or Srishti Tiwari - please provide more context and background:

• In which class or interface were you investigating the the functions getParser() and getIndexWriter()?
• Why is it important to investigate these functions? Please write a brief user story to explain why it was important to investigate these functions.

Assigning to Srishti Tiwari since she has worked on this most.

Hi [~aloraine],

These methods were investigated in interface
com.affymetrix.genometry.parsers.FileTypeHandler.java and all classes implementing it.
It was necessary to understand how different files being parsed and so that the same could be implemented for files with 23andme extensions.

It was earlier discussed that it could be removed or not as their usage was not known. I figured out that it was being used for two classes as mentioned in my first comment. So we cannot remove them.

Followup:

Please edit above comment to include:

• package and module for interface FileTypeHandler.java
• why were you investigating those two methods in particular? were you trying to see if they could be removed from the interface or what?

On re-reading the previous comments and notes, I see the questions were answered and the task is complete. Moving to Done!