ClientMain.java

import java.io.File;
import java.io.IOException;

public class ClientMain {
	
	public static void main(String[] args) {
		
		int cport = -1;
		int timeout = -1;
		try {
			// parse arguments
			cport = Integer.parseInt(args[0]);
			timeout = Integer.parseInt(args[1]);
		} catch (NumberFormatException e) {
			System.err.println("Error parsing arguments: " + e.getMessage());
			System.err.println("Expected: java ClientMain cport timeout");
			System.exit(-1);
		}
			
		File downloadFolder = new File("downloads");
		if (!downloadFolder.exists())
			if (!downloadFolder.mkdir()) throw new RuntimeException("Cannot create download folder (folder absolute path: " + downloadFolder.getAbsolutePath() + ")");
		
		testClient(cport, timeout, downloadFolder);
		
		// example to launch a number of concurrent clients, each doing the same operations
		/*for (int i = 0; i < 10; i++) {
			new Thread() {
				public void run() {
					testClient(cport, timeout, downloadFolder);
				}
			}.start();
		}*/
	}
	
	public static void testClient(int cport, int timeout, File downloadFolder) {
		Client client = null;
		
		try {
			client = new Client(cport, timeout, Logger.LoggingType.ON_FILE_AND_TERMINAL);
		
			try { client.connect(); } catch(IOException e) { e.printStackTrace(); return; }
			
			String[] files = {"AllStar.txt", "Unknown.txt", "PumpkinHill.txt", "SnowHalation.txt", "Grandad.txt"};
			
			for(String file : files) {
				try { client.store(new File(file)); Thread.sleep(500);} 
				catch(IOException e) { e.printStackTrace(); }
				catch(InterruptedException e) {e.printStackTrace();}
			}
			
			/*
			
			try { list(client); } catch(IOException e) { e.printStackTrace(); }
			
			try { client.store(new File("AllStar.txt")); } catch(IOException e) { e.printStackTrace(); }
			
			try { client.store(new File("AllStar.txt")); } catch(IOException e) { e.printStackTrace(); }

			try { client.store(new File("Unknown.txt")); } catch(IOException e) { e.printStackTrace(); }
			
			*/
			String list[] = null;
			try { list = list(client); } catch(IOException e) { e.printStackTrace(); }
			
			if (list != null)
				for (String filename : list)
					try { client.load(filename, downloadFolder); } catch(IOException e) { e.printStackTrace(); }
			/*
			if (list != null)