import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.Collections;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;

/**
 * @author glueckskeks #info.upb@euirc.net
 */
public class IrcLogParser {

    public void parse(String textFileName) throws Exception {
    List<String> nicks = new LinkedList<String>();
    String line = System.getProperty("line.separator");
    Reader r = new InputStreamReader(new FileInputStream(textFileName),
        "UTF8");
    BufferedReader in = new BufferedReader(r);
    while ((line = in.readLine()) != null) {
        line = line.substring(line.indexOf("] ") + 2);
        line = line.substring(0, line.indexOf(" ")).trim();
        if (!nicks.contains(line))
        nicks.add(line);
    }
    in.close();
    System.out.println("Nicks: " + nicks.size());
    Collections.sort(nicks);
    Iterator<String> it = nicks.iterator();
    while (it.hasNext())
        System.out.println(it.next());
    }

    public static void main(String[] args) throws Exception {
    String file = "/home/adi/Downloads/joins2011.txt";
    new IrcLogParser().parse(file);
    }
}