How to Get SSLThumbprint

Hi,

I am trying to establish a connection and get source from a linux source machine, using ..

ConverterComputerSpec liveSourceSpec = new ConverterComputerSpec();

liveSourceSpec.setLocation( Common.buildLiveSourceLocation(_sourceName, _sourceUsername, _sourcePassword, _sourceOsType, _sourceThumbprint));

ConverterComputerInfo info  = _converterServer.querySource(sourceSpec);

All the parameters except _sourceThumbprint can be entered from the property file., How to determine the _sourceThumbprint. what is the Method that returns the sourceThumbPrint ?