import java.io.*;
	import java.util.*;
	import java.sql.Connection;
	import java.sql.DriverManager;
	import java.sql.ResultSet;
	import java.sql.SQLException;
	import java.sql.Statement;
	import java.util.logging.Level;
	import java.util.*;

	public class Sample {
			public native long Traveser(String Path);

			public native void Configure(String Path);
		public static void main (String[] args) throws IOException  {
				long count=0;		
				int CountComputers;
				FileInputStream fstream = new FileInputStream(
						"/export/hadoop-1.0.1/bin/countcomputers.txt");
				DataInputStream input = new DataInputStream(fstream);
				BufferedReader br = new BufferedReader(new InputStreamReader(input));
				String result=br.readLine();
				CountComputers=Integer.parseInt(result);
				input.close();
				fstream.close();
				Connection con = null;
				Statement st = null;
					ResultSet rs = null;    
				   String url = "jdbc:postgresql://192.168.1.8:5432/NexentaSearch";
					String user = "postgres";
					String password = "valter89";
				ArrayList<String> paths = new ArrayList<String>();
				try
				{
					con = DriverManager.getConnection(url, user, password);
							st = con.createStatement();
							rs = st.executeQuery("select path from tasks order by id");
					while (rs.next()) { paths.add(rs.getString(1)); };
					PrintWriter zzz = null;
						try
						{
								zzz = new PrintWriter(new FileOutputStream("/export/hadoop-1.0.1/bin/readwaysfromdatabase.txt"));
						}
						catch(FileNotFoundException e)
						{
								System.out.println("Error");
								System.exit(0);
						}
						for (int i=0; i<paths.size(); i++)
					{
						zzz.println("paths[i]=" + paths.get(i) + "\n");
						}
						zzz.close();
					
				}
				catch (SQLException e) 
				{
					System.out.println("Connection Failed! Check output console");
					e.printStackTrace();
				}
						Sample inst=new Sample();
					for (int i=0; i<paths.size(); i++)
					{
						inst.Configure("/etc/nsindexer.conf");
						count = inst.Traveser(paths.get(i));
						}
			}
			static {
				System.loadLibrary("nativetestlib");
			}
	}

    ./javac -classpath /folder/postgresql-8.4-703.jdbc3.jar -d /Samplejavaprogram/classes /Samplejavaprogram/src/Sample.java
    ./jar -cvf /Samplejavaprogram/Sample.jar /folder/postgresql-8.4-703.jdbc3.jar -C /Samplejavaprogram/classes/ .

    Main-Class: Sample
    Class-Path: /folder/postgresql-8.4-703.jdbc3.jar

    ./java -Djava.library.path=/opt/jdk1.7.0_06/lib -jar /Samplejavaprogram/Sample.jar

sudo apt-get install libpq-dev