code: public void setProperties(Properties properties) {
  		baseDir = properties.getProperty("base_dir", baseDir);
  		inputFileLocation = baseDir + '/' + properties.getProperty("input_file_location", inputFileLocation);
  		outputFileLocation = baseDir + '/' + properties.getProperty("output_file_location", outputFileLocation);
  		tempOutputFileLocation = baseDir + '/' + properties.getProperty("temp_output_file_location", tempOutputFileLocation);
  	}
docs: Determines file locations.