import java.io.IOException;
import java.io.InputStream;

import org.apache.commons.io.IOUtils;

import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelExec;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;

public class Conn {

public static void main(String[] args) throws IOException {


    try {
        final String host = "hostname";
        final String username = "username";
        final String password = "password";
        final int port = 22;
        final String hostKey = "no";


        final String command5 ="sh metrics.sh";


        final String openSession1 = openSession1(host, username,password,port, hostKey, command5);



    }catch (Exception ase) {
        System.out.println("Caught an Exception:");
        System.out.println("Error Message:    " + ase.getMessage());
    }


}

public static final String HOST_KEY_CHECKING = "StrictHostKeyChecking";
public static final String EXCUTE_CHANNEL = "exec";

public static String openSession1(String host, String username,String password, int port, String hostKey, String command5) {

    JSch jsch = new JSch();
    Session session = null;
    Channel channel = null;
    StringBuilder log = new StringBuilder();

    String response = null;


    try {
        session = jsch.getSession(username, host, port);
        session.setPassword(password);
        session.setConfig(HOST_KEY_CHECKING, hostKey);
        session.setConfig("PreferredAuthentications", "publickey,keyboard-interactive,password");
        session.connect();
        // check if connect was successful
        if (session.isConnected()) {
            System.out.println("Connected sucessfully to server :" + host);

             try{
            channel = session.openChannel(EXCUTE_CHANNEL);

            ((ChannelExec) channel).setCommand(command5);
            // channel.setInputStream(System.in);
            channel.setInputStream(null);

            ((ChannelExec) channel).setErrStream(System.err);

            InputStream in = channel.getInputStream();

            channel.connect();
            response = IOUtils.toString(in);

             }
                catch(Exception e){
                    return e.toString();
                }
        } else {
            System.out.println("Connection Failed" + host);
        }
    } catch (JSchException e) {
        System.out.println("Connection Failed" + host + " Error:" + e.getMessage());
        e.printStackTrace();
    } catch (Exception e) {
        System.out.println("Connection Failed" + host + " Error:" + e.getMessage());
        e.printStackTrace();
    }

    System.out.println( "Sent:"+  response.substring((response.indexOf("Sent: ") + ("Sent: ").length()),
            (response.indexOf("Connections: "))));

    System.out.println( "Received:"+  response.substring((response.indexOf("Received: ") + ("Received: ").length()),
            (response.indexOf("Sent: "))));

    System.out.println( "Connections:"+  response.substring((response.indexOf("Connections: ") + ("Connections: ").length()),
            response.indexOf("Outstanding: ")));



    System.out.println( "Response received :"+  response);
    return response;

}

#!/bin/bash
echo stat | nc hostname 2181
echo bytes_in_per_second