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137 lines
3.0 KiB
137 lines
3.0 KiB
package net.jrtechs.www.server.old;
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import org.java_websocket.WebSocket;
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import org.java_websocket.handshake.ClientHandshake;
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import org.java_websocket.server.WebSocketServer;
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import org.json.JSONObject;
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import java.net.InetSocketAddress;
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import java.util.HashSet;
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import java.util.Set;
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/**
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* Socket server which listens for clients
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*
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* @author Jeffery Russell 5-26-18
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*/
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public class Server extends WebSocketServer
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{
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/** port to listen on **/
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private static int TCP_PORT = 4444;
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/** clients connected to the server **/
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private Set<Client> clients;
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/**
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* Initializes the server and creates an empty set of clients
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*/
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public Server()
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{
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super(new InetSocketAddress(TCP_PORT));
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System.out.println(super.getAddress());
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clients = new HashSet<>();
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}
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@Override
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public void onOpen(WebSocket conn, ClientHandshake handshake)
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{
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System.out.println("New connection from " +
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conn.getRemoteSocketAddress().getAddress().getHostAddress());
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}
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@Override
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public void onClose(WebSocket conn, int code, String reason, boolean remote)
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{
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this.removeClient(conn);
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System.out.println("Closed connection to " +
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conn.getRemoteSocketAddress().getAddress().getHostAddress());
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}
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@Override
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public void onMessage(WebSocket conn, String message)
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{
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JSONObject object = new JSONObject(message);
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if(object.has("graph"))
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{
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for (Client client : clients)
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{
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if(client.getSocket() == conn)
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{
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return;
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}
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}
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Client newClient = new Client(conn, object.getString("id"),
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object.getInt("graph"));
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clients.add(newClient);
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newClient.start();
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}
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else if(object.has("go"))
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{
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for(Client client: clients)
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{
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if(client.getSocket() == conn)
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{
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client.sendNextRequest();
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}
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}
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}
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}
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@Override
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public void onError(WebSocket conn, Exception ex)
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{
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ex.printStackTrace();
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if (conn != null)
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{
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clients.remove(conn);
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// do some thing if required
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}
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System.out.println("ERROR from " + conn.getRemoteSocketAddress()
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.getAddress().getHostAddress());
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}
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@Override
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public void onStart() {
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}
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/**
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* Removes a client from the main list of clients
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* based on the websocket that needs to be removed.
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*
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* @param conn
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*/
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public void removeClient(WebSocket conn)
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{
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for(Client c: clients)
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{
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if(c.getSocket() == conn)
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{
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this.clients.remove(c);
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c.stop();
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}
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}
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}
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/**
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* Starts the web socket server
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*
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* @param args
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*/
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public static void main(String[] args)
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{
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new Server().start();
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}
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}
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