/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <p>
*/
package org.olat.instantMessaging.rosterandchat;
import java.util.Collection;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import org.jivesoftware.smack.Chat;
import org.jivesoftware.smack.MessageListener;
import org.jivesoftware.smack.packet.Message;
import org.olat.core.gui.UserRequest;
import org.olat.core.gui.components.Component;
import org.olat.core.gui.components.panel.Panel;
import org.olat.core.gui.components.velocity.VelocityContainer;
import org.olat.core.gui.control.Controller;
import org.olat.core.gui.control.Event;
import org.olat.core.gui.control.WindowControl;
import org.olat.core.gui.control.controller.BasicController;
import org.olat.instantMessaging.InstantMessagingModule;
/**
* Description:<br>
* ChatManagerController: Manages peer to peer chats
*
* <P>
* Initial Date: 05.05.2008 <br>
* @author guido
*/
public class ChatManagerController extends BasicController {
private VelocityContainer container = createVelocityContainer("chats");
private HashMap<String, ChatController> chats = new HashMap<String, ChatController>(2);
/**
*
* @param ureq
* @param control
*/
public ChatManagerController(UserRequest ureq, WindowControl control) {
super(ureq, control);
container.contextPut("chats", chats);
putInitialPanel(container);
}
@Override
public void event(UserRequest ureq, Controller source, Event event) {
if (source instanceof ChatController) {
ChatController chatCtr = (ChatController) source;
String jabberId = event.getCommand();
chats.remove(jabberId);
Component c = container.getComponent(jabberId);
container.remove(c);
InstantMessagingModule.getAdapter().getClientManager().deregisterControllerListener(getIdentity().getName(), source);
Chat chat = chatCtr.getChatManager();
if (chat != null) {
Collection<MessageListener> listeners = chat.getListeners();
for (Iterator<MessageListener> iterator = listeners.iterator(); iterator.hasNext();) {
chat.removeMessageListener(iterator.next());
}
}
//forward event also to main controller
fireEvent(ureq, event);
}
}
/**
* @see org.olat.core.gui.control.DefaultController#doDispose()
*/
@Override
protected void doDispose() {
chats.clear();
}
/**
*
* @param ureq
* @param windowControl
* @param jabberId
* @param offsetX
* @param offsetY
* @param createMsgListener
* @param initialMessage
*/
public void createChat(UserRequest ureq, WindowControl windowControl, String jabberId, int offsetX, int offsetY, boolean createMsgListener, List<Message> initialMessages) {
jabberId = extractJid(jabberId);
ChatController chat = new ChatController(ureq, windowControl, jabberId ,offsetX, offsetY, extractMessages(initialMessages));
listenTo(chat);
if (createMsgListener) {
chat.setChatManager(InstantMessagingModule.getAdapter().getClientManager().createChat(getIdentity().getName(), jabberId, chat));
}
Panel p = new Panel("chatholder");
p.setContent(chat.getInitialComponent());
container.put(jabberId, p);
chats.put(jabberId, chat);
}
/**
*
* @param ureq
* @param windowControl
* @param jabberId
*/
public void createChat(UserRequest ureq, WindowControl windowControl, String jabberId) {
createChat(ureq, windowControl, jabberId, 100+(chats.size()*10), 100+(chats.size()*5), false, null);
}
/**
* extract the jabber id without the resource appendix
* @param jabberId
* @return
*/
private String extractJid(String jabberId) {
int pos = jabberId.lastIndexOf("/");
if (pos > 0) {
return jabberId.substring(0, jabberId.lastIndexOf("/"));
}
return jabberId;
}
/**
* check whether already a chat is running for this jid
* @param jabberId
* @return
*/
public boolean hasRunningChat(String jabberId) {
return chats.containsKey(extractJid(jabberId));
}
@Override
protected void event(UserRequest ureq, Component source, Event event) {
//no events
}
/**
* str
* @param initialMessages
* @return
*/
private Message extractMessages(List<Message> initialMessages) {
if (initialMessages == null) return null;
if (initialMessages.size() > 1) {
Message msg = initialMessages.get(0);
StringBuilder sb = new StringBuilder();
String from = msg.getFrom();
for (Iterator<Message> iterator = initialMessages.iterator(); iterator.hasNext();) {
Message message = iterator.next();
if (message.getFrom().equals(from)) {
sb.append(message.getBody()).append("<br/>\n");
}
}
Message newMsg = new Message();
newMsg.setBody(sb.toString());
newMsg.setFrom(from);
newMsg.setProperty("receiveTime", new Long(new Date().getTime()));
return newMsg;
} else {
return initialMessages.get(0);
}
}
}