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Mage.Server/src/mage/server/ChatSession.java

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+/*
+* Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without modification, are
+* permitted provided that the following conditions are met:
+*
+*    1. Redistributions of source code must retain the above copyright notice, this list of
+*       conditions and the following disclaimer.
+*
+*    2. Redistributions in binary form must reproduce the above copyright notice, this list
+*       of conditions and the following disclaimer in the documentation and/or other materials
+*       provided with the distribution.
+*
+* THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
+* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*
+* The views and conclusions contained in the software and documentation are those of the
+* authors and should not be interpreted as representing official policies, either expressed
+* or implied, of BetaSteward_at_googlemail.com.
+*/
+
+package mage.server;
+
+import mage.server.util.ThreadExecutor;
+import java.rmi.RemoteException;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.Calendar;
+import java.util.GregorianCalendar;
+import java.util.Map.Entry;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ExecutorService;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import mage.interfaces.ChatClient;
+import mage.util.Logging;
+
+/**
+ *
+ * @author BetaSteward_at_googlemail.com
+ */
+public class ChatSession {
+
+	private static ExecutorService executor = ThreadExecutor.getInstance().getRMIExecutor();
+	private final static Logger logger = Logging.getLogger(ChatSession.class.getName());
+	private ConcurrentHashMap<UUID, ChatClient> clients = new ConcurrentHashMap<UUID, ChatClient>();
+	private UUID chatId;
+	private DateFormat timeFormatter = SimpleDateFormat.getTimeInstance(SimpleDateFormat.SHORT);
+
+	//TODO: use sessionId for chatting - prevents sending without being part of the chat
+
+	public ChatSession() {
+		chatId = UUID.randomUUID();
+	}
+
+	public void join(ChatClient client) {
+		try {
+			logger.log(Level.INFO, "joining chat " + chatId);
+			clients.put(client.getId(), client);
+			broadcast(client.getName(), " has joined");
+		} catch (RemoteException ex) {
+			logger.log(Level.SEVERE, null, ex);
+		}
+	}
+
+	public void leave(UUID clientId) {
+		if (clients.contains(clientId)) {
+			String clientName = "";
+			try {
+				clientName = clients.get(clientId).getName();
+			} catch (RemoteException ex) {
+				logger.log(Level.SEVERE, null, ex);
+			}
+			kill(clientId);
+			broadcast(clientName, " has left");
+		}
+	}
+
+	public void kill(UUID clientId) {
+		if (clients.contains(clientId))
+			clients.remove(clientId);
+	}
+
+	public void broadcast(final String userName, final String message) {
+		Calendar cal = new GregorianCalendar();
+		final String msg = timeFormatter.format(cal.getTime()) + " " + userName + ":" + message;
+		for (final Entry<UUID, ChatClient> entry: clients.entrySet()) {
+			executor.submit(
+				new Runnable() {
+					public void run() {
+						try {
+							entry.getValue().receiveMessage(msg);
+						}
+						catch (RemoteException ex) {
+							logger.log(Level.WARNING, ex.getMessage());
+							kill(entry.getKey());
+						}
+					}
+				}
+			);
+		}
+	}
+
+	/**
+	 * @return the chatId
+	 */
+	public UUID getChatId() {
+		return chatId;
+	}
+
+}