/*
* $Id$
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.struts2.showcase.chat;
import java.util.*;
public class Room {
private static final int MAX_CHAT_MESSAGES = 10;
private String name;
private String description;
private Date creationDate;
private List<ChatMessage> messages = new ArrayList<ChatMessage>();
private Map<String, User> members = new LinkedHashMap<String, User>();
public Room(String name, String description) {
this.name = name;
this.description = description;
this.creationDate = new Date(System.currentTimeMillis());
}
// properties
public Date getCreationDate() {
return creationDate;
}
public String getDescription() {
return description;
}
public String getName() {
return name;
}
// (behaviour) members
public List<User> getMembers() {
return new ArrayList<User>(members.values());
}
public User findMember(String name) {
assert (name != null);
return members.get(name);
}
public boolean hasMember(String name) {
assert (name != null);
return members.containsKey(name);
}
public void memberEnter(User member) {
assert (member != null);
if (!hasMember(member.getName())) {
members.put(member.getName(), member);
}
}
public void memberExit(String memberName) {
assert (memberName != null);
assert (memberName.trim().length() > 0);
members.remove(memberName);
}
// (behaviour) chat messags
public void addMessage(ChatMessage chatMessage) {
if (messages.size() > MAX_CHAT_MESSAGES) {
// messages.remove(messages.size() - 1);
messages.remove(0);
}
messages.add(chatMessage);
}
public List<ChatMessage> getChatMessages() {
return new ArrayList<ChatMessage>(messages);
}
}