code: private String getValue(final String value, final String mappedFieldName) {
  		
  		if (isNull(value)) return null;
  		
  		return value.equals(DEFAULT_FIELD_VALUE)?mappedFieldName:value;
  	}
docs: This method compare the name of the target field with the DEFAULT_FIELD_VALUE and returns the final value.
  
  @param value configuration parameter
  @param mappedFieldName name of the configured field
  @return the name of target field
  
  @see Constants#DEFAULT_FIELD_VALUE