alts.min.vc scraper source

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.URL;
import java.util.ArrayList;


public class Scraper {
    public static void main(String[] args) {
        init();

        System.out.println("-=Jonalu's online alt database account scraper=-");
        System.out.println("type help for commands");
        BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in));
        String uIn;
        try {
            while((uIn = stdIn.readLine()) != null) {
                command(uIn);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        exit();
    }
    private static void exit() {
        exit = true;
        System.out.println("-=Exiting=-");
        System.exit(0);
    }
    private static void init() {
        exit = false;
        scrapedUsernames = new ArrayList<String>();
    }

    private static void command(String uIn) {
        if(uIn.equalsIgnoreCase("help")) {
            showHelp();
        } else if(uIn.equalsIgnoreCase("save")) {
            save();
        } else if(uIn.toLowerCase().startsWith("scrape")) {
            scrapeCommand(uIn);
        } else if(uIn.toLowerCase().startsWith("setfile")) {
            setfile(uIn);
        } else if(uIn.equalsIgnoreCase("exit")) {
            exit();
        } else if(uIn.equalsIgnoreCase("abort")) {
            abortCommand(uIn);
        }
    }

    private static void setfile(String uIn) {
        try {
            String[] as = uIn.split(" ");
            if(as.length == 2) {
                outputFile = new File(as[1]);
                if(outputFile.exists() && outputFile.isDirectory())
                    System.out.println("That's a directory!");
                else if(!outputFile.exists() && !outputFile.createNewFile())
                    System.out.println("Couldn't create file");
                else
                    System.out.println("Output file set");
            } else {
                System.out.println("Syntax Error. Correct Usage: setfile <path>");
            }
        } catch(IOException ioe) {
            ioe.printStackTrace();
        }
    }
    private static void abortCommand(String uIn) {
        abortScraping();
    }
    private static void scrapeCommand(String uIn) {
        String[] as = uIn.split(" ");
        if(as.length == 2) {
            try {
                int i = Integer.parseInt(as[1]);
                scrape(i);
            } catch(Exception e) {
                System.out.println("Syntax Error. Correct Usage: scrape <count>");
            }
        } else {
            System.out.println("Syntax Error. Correct Usage: scrape <count>");
        }
    }
    private static Thread scrapeThread = null;
    private static void scrape(final int i) {
        System.out.println("Scraping "+i+ (i == 1 ? " username" : " usernames"));
        scrapeThread = new Thread() {
            public void run() {
                try {
                    for(int i1 = 0; i1 < i; i1++) {
                        String s = scrape();
                        if(s == null) {
                            if(i1 < i-1) {
                                System.out.println("Waiting 2 minutes");
                                Thread.sleep(1000L*60L*2L);
                            }
                            continue;
                        }
                        System.out.println(s);
                        break;
                    }
                } catch(IOException ioe) {
                    ioe.printStackTrace();
                } catch (InterruptedException e) {
                }
                System.out.println("Scraping finished.");
                showTotalUsernames();
            }
        };
        scrapeThread.start();
    }
    private static void showTotalUsernames() {
        System.out.println("Total Usernames: "+scrapedUsernames.size());
    }
    private static void abortScraping() {
        if(scrapeThread != null && scrapeThread.isAlive()) {
            scrapeThread.interrupt();
            showTotalUsernames();
        } else {
            System.out.println("Not scraping.");
        }
    }
    private static void save() {
        try {
            if(outputFile == null || (!outputFile.exists() && !outputFile.mkdirs() && !outputFile.createNewFile())) {
                System.out.println("no output file set. use setfile <path>.");
            } else {
                BufferedReader br = new BufferedReader(new FileReader(outputFile));
                ArrayList<String> usernames = new ArrayList<String>();

                String s1;
                while((s1 = br.readLine()) != null) {
                    usernames.add(s1);
                }
                br.close();
                for(String s : scrapedUsernames) {
                    if(!usernames.contains(s))
                        usernames.add(s);
                }

                PrintStream ps = new PrintStream(outputFile);

                for(String s : usernames) {
                    ps.println(s);
                }

                ps.flush();
                ps.close();
                System.out.println("Successfully saved.");
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static void showHelp() {
        System.out.println("-=Help=-");
        System.out.println("scrape <count> - scrape accounts");
        System.out.println("abort - abort scraping accounts");
        System.out.println("save - save scraped accounts to file");
        System.out.println("setfile <path> - set output file path");
        System.out.println("help - show this help");
        System.out.println("exit - exit the scraper");
    }

    private static String scrape() throws IOException {
        String s = "http://alts.min.vc/?getalt";
        URL url = new URL(s);
        InputStreamReader isr = new InputStreamReader(url.openStream());
        BufferedReader br = new BufferedReader(isr);
        //String s1;
        String[] as;
        as = br.readLine().split(":");
        br.close();
        isr.close();
        if(as.length == 2) {
            if(!scrapedUsernames.contains(as[0])) {
                scrapedUsernames.add(as[0]);
                System.out.println("Scraped "+as[0]);
            }
            return null;
        } else if(as.length > 0) {
            return as[0];
        } else {
            return "invalid answer";
        }
    }

    private static File outputFile;
    private static ArrayList<String> scrapedUsernames;
}