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package pokemon;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import java.rmi.Naming;
import java.rmi.registry.LocateRegistry;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import models.CONSTS;
import models.User;
public class Server implements Runnable {
private ServerSocketChannel serverSocketChannel;
private Selector selector;
private ArrayList<Game> games;
HashMap<SocketChannel,Long > players = new HashMap<SocketChannel,Long>();
IService s;
ByteBuffer bb = ByteBuffer.allocate(1024);
public static void main(String[] args) {
Server server=new Server();
new Thread(server).start();
}
public Server() {
try {
s = new Service();
System.out.println("created registry at "+CONSTS.port);
LocateRegistry.createRegistry(CONSTS.port);
Naming.rebind(CONSTS.rmiUrl, s);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
serverSocketChannel=ServerSocketChannel.open();
serverSocketChannel.socket().bind(new InetSocketAddress(CONSTS.socketPort));
serverSocketChannel.configureBlocking(false);
selector=Selector.open();
serverSocketChannel.register(selector, SelectionKey.OP_ACCEPT);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Override
public void run() {
try {
Iterator<SelectionKey> iter;
SelectionKey key;
while(this.serverSocketChannel.isOpen())
{
selector.select();
iter = selector.selectedKeys().iterator();
while(iter.hasNext())
{
key = iter.next();
iter.remove();
if(key.isAcceptable())
acceptConnection(key);
if(key.isReadable())
readMessage(key);
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
private void readMessage(SelectionKey key)throws Exception {
SocketChannel sc = (SocketChannel) key.channel();
StringBuilder sb = new StringBuilder();
int read=0;
while( (read=sc.read(bb)) > 0 )
{
bb.flip();
byte[] bytes = new byte[bb.limit()];
bb.get(bytes);
sb.append(new String(bytes));
bb.clear();
}
if(read==-1)
{
Long closedId=players.get(sc);
players.remove(sc);
System.out.println("Client dissconnected: "+closedId );
System.out.println("Remaining clients: "+players.size() );
sc.close();
return;
}
System.out.println(sb.toString());
String[] msg=sb.toString().trim().split(":");
if(msg[0].equals("LOGIN")) {
User newUser=new User();
newUser.setUsername(msg[1].trim());
newUser.setPassword(msg[2].trim());
String message;
User res=s.login(newUser);
if(res == null)
{
message="BADLOGIN";
ByteBuffer buff = ByteBuffer.wrap(message.getBytes());
sc.write(buff);
}
else {
message="ACCEPTED"+":"+res.id;
players.put(sc,res.id);
ByteBuffer buff = ByteBuffer.wrap(message.getBytes());
sc.write(buff);
}
}
}
private void acceptConnection(SelectionKey key) throws Exception {
SocketChannel sc = ((ServerSocketChannel) key.channel()).accept();
String address = (new StringBuilder( sc.socket().getInetAddress().toString() )).append(":").append( sc.socket().getPort() ).toString();
sc.configureBlocking(false);
System.out.println("adress "+address);
bb.clear();
int read = 0;
StringBuilder sb = new StringBuilder();
sc.configureBlocking(true);
while( (read = sc.read(bb)) > 0 )
{
bb.flip();
byte[] bytes = new byte[bb.limit()];
bb.get(bytes);
sb.append(new String(bytes));
bb.clear();
sc.configureBlocking(false);
}
String message = sb.toString();
System.out.println("message: " + message);
String []words = message.split(":");
System.out.println(words[0]);
if(words[0].trim().equals("LOGIN") == false)
{
System.out.println("Not Login : ");
return;
}
User newUser=new User();
newUser.setUsername(words[1].trim());
newUser.setPassword(words[2].trim());
User res=s.login(newUser);
if(res == null)
{
message="BADLOGIN";
ByteBuffer buff = ByteBuffer.wrap(message.getBytes());
sc.write(buff);
sc.register(selector, SelectionKey.OP_READ, address);
}
else {
message="ACCEPTED"+":"+res.id;
players.put(sc,res.id);
ByteBuffer buff = ByteBuffer.wrap(message.getBytes());
sc.write(buff);
sc.register(selector, SelectionKey.OP_READ, address);
}
}
}
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