mirror of
https://codeberg.org/Mercury-IM/Smack
synced 2024-11-05 08:05:58 +01:00
279aabc049
git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@2243 b35dd754-fafc-0310-a699-88a17e54d16e
288 lines
No EOL
11 KiB
Java
288 lines
No EOL
11 KiB
Java
/**
|
|
* $RCSfile$
|
|
* $Revision$
|
|
* $Date$
|
|
*
|
|
* Copyright (C) 2002-2003 Jive Software. All rights reserved.
|
|
* ====================================================================
|
|
* The Jive Software License (based on Apache Software License, Version 1.1)
|
|
*
|
|
* 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.
|
|
*
|
|
* 3. The end-user documentation included with the redistribution,
|
|
* if any, must include the following acknowledgment:
|
|
* "This product includes software developed by
|
|
* Jive Software (http://www.jivesoftware.com)."
|
|
* Alternately, this acknowledgment may appear in the software itself,
|
|
* if and wherever such third-party acknowledgments normally appear.
|
|
*
|
|
* 4. The names "Smack" and "Jive Software" must not be used to
|
|
* endorse or promote products derived from this software without
|
|
* prior written permission. For written permission, please
|
|
* contact webmaster@jivesoftware.com.
|
|
*
|
|
* 5. Products derived from this software may not be called "Smack",
|
|
* nor may "Smack" appear in their name, without prior written
|
|
* permission of Jive Software.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 JIVE SOFTWARE OR
|
|
* ITS 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.
|
|
* ====================================================================
|
|
*/
|
|
|
|
package org.jivesoftware.smack;
|
|
|
|
import org.jivesoftware.smack.packet.Message;
|
|
import org.jivesoftware.smack.util.StringUtils;
|
|
import org.jivesoftware.smack.filter.*;
|
|
|
|
/**
|
|
* A chat is a series of messages sent between two users. Each chat can have
|
|
* a unique thread ID, which is used to track which messages are part of a particular
|
|
* conversation.<p>
|
|
*
|
|
* In some situations, it is better to have all messages from the other user delivered
|
|
* to a Chat rather than just the messages that have a particular thread ID. To
|
|
* enable this behavior, call {@link #setFilteredOnThreadID(boolean)} with
|
|
* <tt>false</tt> as the parameter.
|
|
*
|
|
* @see XMPPConnection#createChat(String)
|
|
* @author Matt Tucker
|
|
*/
|
|
public class Chat {
|
|
|
|
/**
|
|
* A prefix helps to make sure that ID's are unique across mutliple instances.
|
|
*/
|
|
private static String prefix = StringUtils.randomString(5);
|
|
|
|
/**
|
|
* True if only messages that have a matching threadID will be delivered to a Chat. When
|
|
* false, any message from the other participant will be delivered to a Chat.
|
|
*/
|
|
private static boolean filteredOnThreadID = true;
|
|
|
|
/**
|
|
* Keeps track of the current increment, which is appended to the prefix to
|
|
* forum a unique ID.
|
|
*/
|
|
private static long id = 0;
|
|
|
|
/**
|
|
* Returns the next unique id. Each id made up of a short alphanumeric
|
|
* prefix along with a unique numeric value.
|
|
*
|
|
* @return the next id.
|
|
*/
|
|
private static synchronized String nextID() {
|
|
return prefix + Long.toString(id++);
|
|
}
|
|
|
|
private XMPPConnection connection;
|
|
private String threadID;
|
|
private String participant;
|
|
private PacketFilter messageFilter;
|
|
private PacketCollector messageCollector;
|
|
|
|
/**
|
|
* Creates a new chat with the specified user.
|
|
*
|
|
* @param connection the connection the chat will use.
|
|
* @param participant the user to chat with.
|
|
*/
|
|
public Chat(XMPPConnection connection, String participant) {
|
|
// Automatically assign the next chat ID.
|
|
this(connection, participant, nextID());
|
|
// If not filtering on thread ID, force the thread ID for this Chat to be null.
|
|
if (!filteredOnThreadID) {
|
|
this.threadID = null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Creates a new chat with the specified user and thread ID.
|
|
*
|
|
* @param connection the connection the chat will use.
|
|
* @param participant the user to chat with.
|
|
* @param threadID the thread ID to use.
|
|
*/
|
|
public Chat(XMPPConnection connection, String participant, String threadID) {
|
|
this.connection = connection;
|
|
this.participant = participant;
|
|
this.threadID = threadID;
|
|
|
|
if (filteredOnThreadID) {
|
|
// Filter the messages whose thread equals Chat's id
|
|
messageFilter = new ThreadFilter(threadID);
|
|
}
|
|
else {
|
|
// Filter the messages of type "chat" and sender equals Chat's participant
|
|
messageFilter =
|
|
new OrFilter(
|
|
new AndFilter(
|
|
new MessageTypeFilter(Message.Type.CHAT),
|
|
new FromContainsFilter(participant)),
|
|
new ThreadFilter(threadID));
|
|
}
|
|
messageCollector = connection.createPacketCollector(messageFilter);
|
|
}
|
|
|
|
/**
|
|
* Returns true if only messages that have a matching threadID will be delivered to Chat
|
|
* instances. When false, any message from the other participant will be delivered to Chat instances.
|
|
*
|
|
* @return true if messages delivered to Chat instances are filtered on thread ID.
|
|
*/
|
|
public static boolean isFilteredOnThreadID() {
|
|
return filteredOnThreadID;
|
|
}
|
|
|
|
/**
|
|
* Sets whether only messages that have a matching threadID will be delivered to Chat instances.
|
|
* When false, any message from the other participant will be delivered to a Chat instances.
|
|
*
|
|
* @param value true if messages delivered to Chat instances are filtered on thread ID.
|
|
*/
|
|
public static void setFilteredOnThreadID(boolean value) {
|
|
filteredOnThreadID = value;
|
|
}
|
|
|
|
/**
|
|
* Returns the thread id associated with this chat, which corresponds to the
|
|
* <tt>thread</tt> field of XMPP messages. This method may return <tt>null</tt>
|
|
* if there is no thread ID is associated with this Chat.
|
|
*
|
|
* @return the thread ID of this chat.
|
|
*/
|
|
public String getThreadID() {
|
|
return threadID;
|
|
}
|
|
|
|
/**
|
|
* Returns the name of the user the chat is with.
|
|
*
|
|
* @return the name of the user the chat is occuring with.
|
|
*/
|
|
public String getParticipant() {
|
|
return participant;
|
|
}
|
|
|
|
/**
|
|
* Sends the specified text as a message to the other chat participant.
|
|
* This is a convenience method for:
|
|
*
|
|
* <pre>
|
|
* Message message = chat.createMessage();
|
|
* message.setBody(messageText);
|
|
* chat.sendMessage(message);
|
|
* </pre>
|
|
*
|
|
* @param text the text to send.
|
|
* @throws XMPPException if sending the message fails.
|
|
*/
|
|
public void sendMessage(String text) throws XMPPException {
|
|
Message message = createMessage();
|
|
message.setBody(text);
|
|
connection.sendPacket(message);
|
|
}
|
|
|
|
/**
|
|
* Creates a new Message to the chat participant. The message returned
|
|
* will have its thread property set with this chat ID.
|
|
*
|
|
* @return a new message addressed to the chat participant and
|
|
* using the correct thread value.
|
|
* @see #sendMessage(Message)
|
|
*/
|
|
public Message createMessage() {
|
|
Message message = new Message(participant, Message.Type.CHAT);
|
|
message.setThread(threadID);
|
|
return message;
|
|
}
|
|
|
|
/**
|
|
* Sends a message to the other chat participant. The thread ID, recipient,
|
|
* and message type of the message will automatically set to those of this chat
|
|
* in case the Message was not created using the {@link #createMessage() createMessage}
|
|
* method.
|
|
*
|
|
* @param message the message to send.
|
|
* @throws XMPPException if an error occurs sending the message.
|
|
*/
|
|
public void sendMessage(Message message) throws XMPPException {
|
|
// Force the recipient, message type, and thread ID since the user elected
|
|
// to send the message through this chat object.
|
|
message.setTo(participant);
|
|
message.setType(Message.Type.CHAT);
|
|
message.setThread(threadID);
|
|
connection.sendPacket(message);
|
|
}
|
|
|
|
/**
|
|
* Polls for and returns the next message, or <tt>null</tt> if there isn't
|
|
* a message immediately available. This method provides significantly different
|
|
* functionalty than the {@link #nextMessage()} method since it's non-blocking.
|
|
* In other words, the method call will always return immediately, whereas the
|
|
* nextMessage method will return only when a message is available (or after
|
|
* a specific timeout).
|
|
*
|
|
* @return the next message if one is immediately available and
|
|
* <tt>null</tt> otherwise.
|
|
*/
|
|
public Message pollMessage() {
|
|
return (Message)messageCollector.pollResult();
|
|
}
|
|
|
|
/**
|
|
* Returns the next available message in the chat. The method call will block
|
|
* (not return) until a message is available.
|
|
*
|
|
* @return the next message.
|
|
*/
|
|
public Message nextMessage() {
|
|
return (Message)messageCollector.nextResult();
|
|
}
|
|
|
|
/**
|
|
* Returns the next available message in the chat. The method call will block
|
|
* (not return) until a packet is available or the <tt>timeout</tt> has elapased.
|
|
* If the timeout elapses without a result, <tt>null</tt> will be returned.
|
|
*
|
|
* @param timeout the maximum amount of time to wait for the next message.
|
|
* @return the next message, or <tt>null</tt> if the timeout elapses without a
|
|
* message becoming available.
|
|
*/
|
|
public Message nextMessage(long timeout) {
|
|
return (Message)messageCollector.nextResult(timeout);
|
|
}
|
|
|
|
/**
|
|
* Adds a packet listener that will be notified of any new messages in the
|
|
* chat.
|
|
*
|
|
* @param listener a packet listener.
|
|
*/
|
|
public void addMessageListener(PacketListener listener) {
|
|
connection.addPacketListener(listener, messageFilter);
|
|
}
|
|
} |