Run shard instance mongod for mongodb - Java Big Data

Java examples for Big Data:MongoDB

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Description

Run shard instance mongod for mongodb

Demo Code


import java.io.*;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.util.Scanner;

public class Main {

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

        if (args.length < 2) {
            System.out.println("Invalid usage. use -help");
            System.exit(1);/*from  w  w  w .  j  a  v a2s .co  m*/
        }
        if (args[0].equals("-help")) {
            System.out
                    .println("This java file helps in running shard instances\nUse -c for configuration and routing servers, -s for shardsvr and -r for routing server");
            System.exit(0);
        }
        new File("Data" + args[0]).mkdir();
        String[] config_addr = InetAddress.getLocalHost().toString()
                .split("/");
        System.out.println(config_addr[0]);
        System.out.println(config_addr[1]);
        Runtime r = Runtime.getRuntime();
        String dir_name = "Data" + args[0];
        Process p2 = null;
        if (args[1].equals("-s")) {
            p2 = r.exec("mongod -rest -shardsvr -port " + args[0]
                    + " -bind_ip " + config_addr[1] + " -logpath "
                    + dir_name + "\\logpath.txt -dbpath Data" + args[0]);
        } else if (args[1].equals("-c")) {
            p2 = r.exec("mongod -rest -configsvr -port " + args[0]
                    + " -bind_ip " + config_addr[1] + " -logpath "
                    + dir_name + "\\logpath.txt -dbpath Data" + args[0]);
            Integer next_port = Integer.parseInt(args[0]) + 1;
            String y = next_port.toString();
            String cmd = "mongos -port " + y + " -configdb "
                    + config_addr[1] + ":" + args[0] + ">Data" + args[0]
                    + "\\logpath.txt";
            Process p3 = r.exec(cmd);
            System.out.println(cmd);
        } else {
            System.out.println("Invalid flag. use -help");
        }
        BufferedReader br = new BufferedReader(new InputStreamReader(
                p2.getInputStream()));
        BufferedReader br_stderr = new BufferedReader(
                new InputStreamReader(p2.getErrorStream()));
        String x;
        while ((x = br_stderr.readLine()) != null) {
            System.out.println(x);
        }
        while ((x = br.readLine()) != null) {
            System.out.println(x);
        }
    }
}

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