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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 java.util.Map.Entry;
import models.CONSTS;
import models.User;
import models.UserListWrapper;
public class Server implements Runnable {
private ServerSocketChannel serverSocketChannel;
private Selector selector;
private ArrayList<Game> games;
HashMap<SocketChannel,Long > players = new HashMap<SocketChannel,Long>();
ArrayList<SocketChannel> inGame=new ArrayList<SocketChannel>();
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;
try {
while( (read=sc.read(bb)) > 0 )
{
bb.flip();
byte[] bytes = new byte[bb.limit()];
bb.get(bytes);
sb.append(new String(bytes));
bb.clear();
}
} catch (Exception e) {
Long closedId=players.get(sc);
players.remove(sc);
System.out.println("Client dissconnected: "+closedId );
System.out.println("Remaining clients: "+players.size() );
sc.close();
sendAvailablePlayers();
return;
}
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();
sendAvailablePlayers();
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 {
if(!res.admin) {
message="ACCEPTED"+":"+res.id;
players.put(sc,res.id);
ByteBuffer buff = ByteBuffer.wrap(message.getBytes());
sc.write(buff);
sendAvailablePlayers();
}
else {
message="BADLOGINADMIN";
ByteBuffer buff = ByteBuffer.wrap(message.getBytes());
sc.write(buff);
}
}
}else
if(msg[0].equals("REQUESTUSERS")) {
System.out.println("In");
UserListWrapper wp=new UserListWrapper();
for(Entry<SocketChannel,Long> player:players.entrySet()) {
if(!inGame.contains(player.getKey())) {
User temp=s.getUserById(player.getValue());
if(temp != null)
wp.users.add(temp);
}
}
System.out.println(wp.toString());
ByteBuffer buff = ByteBuffer.wrap(wp.toString().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();
sc.register(selector, SelectionKey.OP_READ, address);
}
public void sendAvailablePlayers() throws Exception{
System.out.println("PlayerAddedRemovedOrJoinedGame");
for(Entry<SocketChannel, Long> player : players.entrySet()) {
SocketChannel sc=player.getKey();
UserListWrapper wp=new UserListWrapper();
for(Entry<SocketChannel,Long> player1:players.entrySet()) {
if(!inGame.contains(player1.getKey())) {
User temp=s.getUserById(player1.getValue());
if(temp != null)
wp.users.add(temp);
}
}
ByteBuffer buff = ByteBuffer.wrap(wp.toString().getBytes());
sc.write(buff);
}
}
}
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