Reading the input from logfile. Printing the unique login ID from the past 10 mins.

user_access_log_test.rb

require 'file'

class UserAccessLogTest << GenericTest

  def initialize (args)
    set_measure_count 1
    @file_path = get_value_for_params "LOG_FILE_PATH"
  end
 
  def compute_measures(params)
    unless File.exists? @file_path && File.readable? @file_path
      puts "#{@file_path} does not exist/is not readable"
    else 
      measure_list = []
      begin
        IO.readlines(@file_path).each do |line|
          puts line if line
        end
      rescue 
          puts 'something\'s wrong'
      end
        
    end

  end
end

UserAccessLogTest.java

import java.util.*;
import java.io.*;
import java.util.StringTokenizer;


public class UserAccessLogTest extends GenericTest
{
	private String filePath ="";
	public UserAccessLogTest(String args[])
	{
		super(args);
		setMeasureCount(1);
		//getting the file path
		filePath = getValueForParam("Log_File_Path");
	}

	public void computeMeasures(Hashtable paramlist)
	{
		
		//loading the file from specified path
		File f = new File (filePath);
		//Checking if the file does not exist
		boolean exists = f.exists ();
		if (!exists)
		{
			//It returns false if the file does not exist
			System.out.println ("The file you are searching for does not exist "+ exists);
			return;
		}
		// logic to read the file line by line parse and get the necessary information
		else
		{
			ArrayList measureList = new ArrayList();
			
			//Reading the file line by line.
			try 
			{
				BufferedReader input = new BufferedReader(new FileReader(filePath));
				String line = "";
				//Read the file and populate the data.
				while ((line = input.readLine()) != null) 
				{
					System.out.println (line);
				}
			} 
			catch (Exception e) 
			{
				return;
			}
			
			
			
			//measureList.add(//your measure value here);
			//addNewMeasure(measureList);
	}	}

	public static void main(String args[] ) 
	{
		UserAccessLogTest aa = new UserAccessLogTest(args);
		
		aa.computeMeasures(new Hashtable());
	}
}