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92 lines
2.0 KiB
92 lines
2.0 KiB
19 years ago
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package DokeosAppShare;
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import java.net.*;
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import java.io.*;
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/**
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* Summary description for ConnectionToRelay.
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*/
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public class CommandConnection extends Thread
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{
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/* COMMANDS */
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public static final int SERVER_CONNECTION = 10;
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public static final int CLIENT_CONNECTION = 20;
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public static final int RELAY_CONNECTION = 30;
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Socket relay;
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String serverID;
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public CommandConnection(String inServerID) throws IOException
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{
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serverID = inServerID;
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relay = new Socket(Config.getRelayHostName(), Config.getRelayPort());
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this.setDaemon(true);
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}
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public void run()
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{
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try
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{
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InputStream in = relay.getInputStream();
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OutputStream out = relay.getOutputStream();
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writeCommand(out, SERVER_CONNECTION, serverID);
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for (; ; )
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{
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//Wait command from relay
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System.out.println("Waiting command from relay...");
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int command = in.read();
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System.out.println("Command receive : " + command);
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if (command == RELAY_CONNECTION)
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{
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String connServerId = readCommandParam(in);
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System.out.println("relay try connection to : " + connServerId);
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if (connServerId.equals(serverID))
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{
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try
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{
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new ConnectionToRelay(serverID);
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}
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catch (Exception ex)
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{
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System.out.println("Exception on ConnectionToRelay instanciation");
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ex.printStackTrace();
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}
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}
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else
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{
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System.out.println("bad server name : " + connServerId);
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}
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}
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}
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}
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catch (IOException ex)
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{
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System.out.println("Exception in CommandConnection listener thread");
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ex.printStackTrace();
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}
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finally
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{
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try { relay.close(); }
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catch (Exception ex) { }
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//TODO Exit application
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}
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}
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public static String readCommandParam(InputStream in) throws IOException
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{
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int size = in.read();
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byte[] data = new byte[size];
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in.read(data);
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return new String(data);
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}
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public static void writeCommand(OutputStream out, int command, String param) throws IOException
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{
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out.write(command);
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byte[] data = param.getBytes();
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out.write(data.length);
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out.write(data);
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}
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}
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