Prolific Programmer on the Internets!

package com.prolificprogrammer.lucenegmail;
import java.io.File;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.internet.InternetAddress;

import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.queryParser.QueryParser;
import org.apache.lucene.search.Hits;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;

public class SearchGMail {
    public static void main (String[] args) throws Exception {
	File path = new File(System.getProperty("java.io.tmpdir")+File.separator+"gmail.index");
	path.mkdir();
	path.deleteOnExit();
	long starttime = System.currentTimeMillis();
	IndexWriter index = new IndexWriter(path.getAbsolutePath(), new StandardAnalyzer(), true);
	Session session = Session.getDefaultInstance(System.getProperties(), null);
	Store store = session.getStore("imaps");
	store.connect("imap.gmail.com", args[0], args[1]);
	System.err.println("Connected!");
	Folder folder = store.getDefaultFolder();
	folder = folder.getFolder("INBOX");
	folder.open(Folder.READ_ONLY);
	System.err.println("Opened INBOX");
	Message[] messages = folder.getMessages();
	System.err.println("Messages retrieved!");
	int x;
	for (x = 0; x != messages.length; x++) {
	    Document document = new Document();
	    String allField = ((InternetAddress)messages[x].getFrom()[0]).getAddress()+"\n"+messages[x].getSubject();
	    document.add(new Field("all", allField, Field.Store.YES, Field.Index.TOKENIZED));
	    document.add(new Field("messageNumber", new Integer(x).toString(), Field.Store.YES, Field.Index.NO));
	    index.addDocument(document);
	    System.err.println("Message "+x+" added.");
	}
	index.optimize();
	index.close();

	System.err.println("Ok, index constructed with "+x+" messages in "+path.getAbsolutePath()+", now searching it");

	IndexSearcher searcher = new IndexSearcher(path.getAbsolutePath());
	Analyzer analyzer = new StandardAnalyzer();
	String query = args[3];
	QueryParser queryParser = new QueryParser("all", analyzer);
	Query parsedQuery = queryParser.parse(query);
	Hits hits = searcher.search(parsedQuery);
	for (int i = 0; i!= hits.length();i++) {
	    Document doc = hits.doc(i);
	    System.out.println(doc.getField("messageNumber"));
	}
	searcher.close();
	long endtime = System.currentTimeMillis();
	System.err.println("program took "+endtime-starttime+" miliseconds to search "+x+" messages, which occupy "+path.length()+" bytes.");
	java.awt.Toolkit.getDefaultToolkit().beep();
    }
}