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git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@2369 b35dd754-fafc-0310-a699-88a17e54d16e
644 lines
No EOL
25 KiB
Java
644 lines
No EOL
25 KiB
Java
/**
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* $RCSfile$
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* $Revision$
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* $Date$
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*
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* Copyright (C) 1999-2003 Jive Software. All rights reserved.
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*
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* This software is the proprietary information of Jive Software.
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* Use is subject to license terms.
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*/
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package org.jivesoftware.smackx.workgroup.agent;
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import java.util.*;
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import org.jivesoftware.smack.*;
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import org.jivesoftware.smack.filter.*;
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import org.jivesoftware.smack.packet.*;
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import org.jivesoftware.smack.util.StringUtils;
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import org.jivesoftware.smackx.GroupChatInvitation;
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import org.jivesoftware.smackx.workgroup.*;
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import org.jivesoftware.smackx.workgroup.packet.*;
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/**
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* This class embodies the agent's active presence within a given workgroup. The application
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* should have N instances of this class, where N is the number of workgroups to which the
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* owning agent of the application belongs. This class provides all functionality that a
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* session within a given workgroup is expected to have from an agent's perspective -- setting
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* the status, tracking the status of queues to which the agent belongs within the workgroup, and
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* dequeuing customers.
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*
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* @author Matt Tucker
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* @author loki der quaeler
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*/
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public class AgentSession {
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private XMPPConnection connection;
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private String workgroupName;
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private boolean online = false;
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private Presence.Mode presenceMode;
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private int currentChats;
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private int maxChats;
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private Map metaData;
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private Map queues;
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private List offerListeners;
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private List invitationListeners;
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private List queueUsersListeners;
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private List queueAgentsListeners;
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/**
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* Creates a new agent session instance.
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*
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* @param connection a connection instance which must have already gone through authentication.
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* @param workgroupName the fully qualified name of the workgroup.
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*/
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public AgentSession(String workgroupName, XMPPConnection connection) {
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// Login must have been done before passing in connection.
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if (!connection.isAuthenticated()) {
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throw new IllegalStateException("Must login to server before creating workgroup.");
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}
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this.workgroupName = workgroupName;
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this.connection = connection;
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this.maxChats = -1;
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this.metaData = new HashMap();
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this.queues = new HashMap();
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offerListeners = new ArrayList();
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invitationListeners = new ArrayList();
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queueUsersListeners = new ArrayList();
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queueAgentsListeners = new ArrayList();
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// Create a filter to listen for packets we're interested in.
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OrFilter filter = new OrFilter();
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filter.addFilter(new PacketTypeFilter(OfferRequestProvider.OfferRequestPacket.class));
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filter.addFilter(new PacketTypeFilter(OfferRevokeProvider.OfferRevokePacket.class));
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filter.addFilter(new PacketTypeFilter(Presence.class));
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filter.addFilter(new PacketTypeFilter(Message.class));
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// only interested in packets from the workgroup or from operators also running the
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// operator client -- for example peer-to-peer invites wouldn't come from
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// the workgroup, but would come from the operator client
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//OrFilter froms = new OrFilter(new FromContainsFilter(this.workgroupName),
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// new FromContainsFilter(clientResource));
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connection.addPacketListener(new PacketListener() {
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public void processPacket(Packet packet) {
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handlePacket(packet);
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}
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}, filter);
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}
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/**
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* Returns the agent's current presence mode.
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*
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* @return the agent's current presence mode.
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*/
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public Presence.Mode getPresenceMode() {
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return presenceMode;
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}
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/**
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* Returns the current number of chats the agent is in.
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*
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* @return the current number of chats the agent is in.
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*/
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public int getCurrentChats() {
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return currentChats;
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}
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/**
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* Returns the maximum number of chats the agent can participate in.
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*
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* @return the maximum number of chats the agent can participate in.
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*/
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public int getMaxChats() {
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return maxChats;
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}
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/**
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* Returns true if the agent is online with the workgroup.
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*
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* @return true if the agent is online with the workgroup.
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*/
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public boolean isOnline() {
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return online;
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}
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/**
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* Allows the addition of a new key-value pair to the agent's meta data, if the value is
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* new data, the revised meta data will be rebroadcast in an agent's presence broadcast.
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*
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* @param key the meta data key
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* @param val the non-null meta data value
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*/
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public void setMetaData(String key, String val) throws XMPPException {
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synchronized (this.metaData) {
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String oldVal = (String)this.metaData.get(key);
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if ((oldVal == null) || (! oldVal.equals(val))) {
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metaData.put(key, val);
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setStatus(presenceMode, currentChats, maxChats);
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}
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}
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}
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/**
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* Allows the removal of data from the agent's meta data, if the key represents existing data,
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* the revised meta data will be rebroadcast in an agent's presence broadcast.
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*
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* @param key the meta data key
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*/
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public void removeMetaData(String key)
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throws XMPPException {
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synchronized (this.metaData) {
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String oldVal = (String)metaData.remove(key);
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if (oldVal != null) {
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setStatus(presenceMode, currentChats, maxChats);
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}
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}
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}
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/**
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* Allows the retrieval of meta data for a specified key.
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*
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* @param key the meta data key
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* @return the meta data value associated with the key or <tt>null</tt> if the meta-data
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* doesn't exist..
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*/
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public String getMetaData(String key) {
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return (String)metaData.get(key);
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}
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/**
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* Sets whether the agent is online with the workgroup. If the user tries to go online with
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* the workgroup but is not allowed to be an agent, an XMPPError with error code 401 will
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* be thrown.
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*
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* @param online true to set the agent as online with the workgroup.
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* @throws XMPPException if an error occurs setting the online status.
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*/
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public void setOnline( boolean online ) throws XMPPException {
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// If the online status hasn't changed, do nothing.
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if (this.online == online) {
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return;
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}
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this.online = online;
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Presence presence = null;
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// If the user is going online...
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if (online) {
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presence = new Presence(Presence.Type.AVAILABLE);
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presence.setTo(workgroupName);
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PacketCollector collector = this.connection.createPacketCollector(new AndFilter(
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new PacketTypeFilter(Presence.class), new FromContainsFilter(workgroupName)));
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connection.sendPacket(presence);
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presence = (Presence)collector.nextResult(5000);
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collector.cancel();
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if (presence == null) {
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throw new XMPPException("No response from server on status set.");
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}
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if (presence.getError() != null) {
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throw new XMPPException(presence.getError());
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}
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}
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// Otherwise the user is going offline...
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else {
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presence = new Presence(Presence.Type.UNAVAILABLE);
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presence.setTo(workgroupName);
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connection.sendPacket(presence);
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}
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}
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/**
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* Sets the agent's current status with the workgroup. The presence mode affects how offers
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* are routed to the agent. The possible presence modes with their meanings are as follows:<ul>
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*
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* <li>Presence.Mode.AVAILABLE -- (Default) the agent is available for more chats
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* (equivalent to Presence.Mode.CHAT).
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* <li>Presence.Mode.DO_NOT_DISTURB -<2D> the agent is busy and should not be disturbed.
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* However, special case, or extreme urgency chats may still be offered to the agent.
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* <li>Presence.Mode.AWAY -- the agent is not available and should not
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* have a chat routed to them (equivalent to Presence.Mode.EXTENDED_AWAY).</ul>
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*
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* The current chats value indicates how many chats the agent is currently in. Because the agent
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* is responsible for reporting the current chats value to the server, this value <b>must</b>
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* be set every time it changes.<p>
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*
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* The max chats value is the maximum number of chats the agent is willing to have routed to
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* them at once. Some servers may be configured to only accept max chat values in a certain
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* range; for example, between two and five. In that case, the maxChats value the agent sends
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* may be adjusted by the server to a value within that range.
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*
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* @param presenceMode the presence mode of the agent.
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* @param currentChats the current number of chats the agent is in.
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* @param maxChats the maximum number of chats the agent is willing to accept.
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* @throws XMPPException if an error occurs setting the agent status.
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* @throws IllegalStateException if the agent is not online with the workgroup.
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*/
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public void setStatus(Presence.Mode presenceMode, int currentChats, int maxChats )
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throws XMPPException
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{
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setStatus( presenceMode, currentChats, maxChats, null );
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}
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/**
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* Sets the agent's current status with the workgroup. The presence mode affects how offers
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* are routed to the agent. The possible presence modes with their meanings are as follows:<ul>
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*
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* <li>Presence.Mode.AVAILABLE -- (Default) the agent is available for more chats
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* (equivalent to Presence.Mode.CHAT).
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* <li>Presence.Mode.DO_NOT_DISTURB -<2D> the agent is busy and should not be disturbed.
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* However, special case, or extreme urgency chats may still be offered to the agent.
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* <li>Presence.Mode.AWAY -- the agent is not available and should not
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* have a chat routed to them (equivalent to Presence.Mode.EXTENDED_AWAY).</ul>
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*
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* The current chats value indicates how many chats the agent is currently in. Because the agent
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* is responsible for reporting the current chats value to the server, this value <b>must</b>
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* be set every time it changes.<p>
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*
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* The max chats value is the maximum number of chats the agent is willing to have routed to
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* them at once. Some servers may be configured to only accept max chat values in a certain
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* range; for example, between two and five. In that case, the maxChats value the agent sends
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* may be adjusted by the server to a value within that range.
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*
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* @param presenceMode the presence mode of the agent.
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* @param currentChats the current number of chats the agent is in.
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* @param maxChats the maximum number of chats the agent is willing to accept.
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* @param status sets the status message of the presence update.
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* @throws XMPPException if an error occurs setting the agent status.
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* @throws IllegalStateException if the agent is not online with the workgroup.
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*/
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public void setStatus(Presence.Mode presenceMode, int currentChats, int maxChats, String status )
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throws XMPPException
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{
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if (!online) {
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throw new IllegalStateException("Cannot set status when the agent is not online.");
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}
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if (presenceMode == null) {
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presenceMode = Presence.Mode.AVAILABLE;
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}
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this.presenceMode = presenceMode;
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this.currentChats = currentChats;
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this.maxChats = maxChats;
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Presence presence = new Presence(Presence.Type.AVAILABLE);
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presence.setMode(presenceMode);
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presence.setTo(this.getWorkgroupName());
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if( status != null ) {
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presence.setStatus( status );
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}
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// Send information about max chats and current chats as a packet extension.
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DefaultPacketExtension agentStatus = new DefaultPacketExtension(AgentStatus.ELEMENT_NAME,
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AgentStatus.NAMESPACE);
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agentStatus.setValue("current-chats", ""+currentChats);
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agentStatus.setValue("max-chats", ""+maxChats);
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presence.addExtension(agentStatus);
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presence.addExtension(new MetaData(this.metaData));
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PacketCollector collector = this.connection.createPacketCollector(new AndFilter(
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new PacketTypeFilter(Presence.class), new FromContainsFilter(workgroupName)));
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this.connection.sendPacket(presence);
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presence = (Presence)collector.nextResult(5000);
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collector.cancel();
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if (presence == null) {
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throw new XMPPException("No response from server on status set.");
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}
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if (presence.getError() != null) {
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throw new XMPPException(presence.getError());
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}
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}
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/**
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* Removes a user from the workgroup queue. This is an administrative action that the
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*
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* The agent is not guaranteed of having privileges to perform this action; an exception
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* denying the request may be thrown.
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*/
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public void dequeueUser(String userID) throws XMPPException {
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// todo: this method simply won't work right now.
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DepartQueuePacket departPacket = new DepartQueuePacket(this.workgroupName);
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// PENDING
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this.connection.sendPacket(departPacket);
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}
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/**
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* @return the fully-qualified name of the workgroup for which this session exists
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*/
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public String getWorkgroupName() {
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return workgroupName;
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}
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/**
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* @param queueName the name of the queue
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* @return an instance of WorkgroupQueue for the argument queue name, or null if none exists
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*/
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public WorkgroupQueue getQueue(String queueName) {
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return (WorkgroupQueue)queues.get(queueName);
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}
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public Iterator getQueues() {
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return Collections.unmodifiableMap((new HashMap(queues))).values().iterator();
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}
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public void addQueueUsersListener(QueueUsersListener listener) {
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synchronized(queueUsersListeners) {
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if (!queueUsersListeners.contains(listener)) {
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queueUsersListeners.add(listener);
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}
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}
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}
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public void removeQueueUsersListener(QueueUsersListener listener) {
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synchronized(queueUsersListeners) {
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queueUsersListeners.remove(listener);
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}
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}
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public void addQueueAgentsListener(QueueAgentsListener listener) {
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synchronized(queueAgentsListeners) {
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if (!queueAgentsListeners.contains(listener)) {
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queueAgentsListeners.add(listener);
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}
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}
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}
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public void removeQueueAgentsListener(QueueAgentsListener listener) {
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synchronized(queueAgentsListeners) {
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queueAgentsListeners.remove(listener);
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}
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}
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/**
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* Adds an offer listener.
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*
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* @param offerListener the offer listener.
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*/
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public void addOfferListener(OfferListener offerListener) {
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synchronized(offerListeners) {
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if (!offerListeners.contains(offerListener)) {
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offerListeners.add(offerListener);
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}
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}
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}
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/**
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* Removes an offer listener.
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*
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* @param offerListener the offer listener.
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*/
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public void removeOfferListener(OfferListener offerListener) {
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synchronized(offerListeners) {
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offerListeners.remove(offerListener);
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}
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}
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/**
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* Adds an invitation listener.
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*
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* @param invitationListener the invitation listener.
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*/
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public void addInvitationListener(InvitationListener invitationListener) {
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synchronized(invitationListeners) {
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if (!invitationListeners.contains(invitationListener)) {
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invitationListeners.add(invitationListener);
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}
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}
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}
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/**
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* Removes an invitation listener.
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*
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* @param invitationListener the invitation listener.
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*/
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public void removeInvitationListener(InvitationListener invitationListener) {
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synchronized(invitationListeners) {
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offerListeners.remove(invitationListener);
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}
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}
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private void fireOfferRequestEvent(OfferRequestProvider.OfferRequestPacket requestPacket) {
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Offer offer = new Offer(this.connection, this, requestPacket.getUserID(),
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this.getWorkgroupName(),
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new Date((new Date()).getTime()
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+ (requestPacket.getTimeout() * 1000)),
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requestPacket.getSessionID(), requestPacket.getMetaData());
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synchronized (offerListeners) {
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for (Iterator i=offerListeners.iterator(); i.hasNext(); ) {
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OfferListener listener = (OfferListener)i.next();
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listener.offerReceived(offer);
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}
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}
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}
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private void fireOfferRevokeEvent(OfferRevokeProvider.OfferRevokePacket orp) {
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RevokedOffer revokedOffer = new RevokedOffer(orp.getUserID(), this.getWorkgroupName(),
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orp.getSessionID(), orp.getReason(),
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new Date());
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synchronized (offerListeners) {
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for (Iterator i=offerListeners.iterator(); i.hasNext(); ) {
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OfferListener listener = (OfferListener)i.next();
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listener.offerRevoked(revokedOffer);
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}
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}
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}
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private void fireInvitationEvent(String groupChatJID, String sessionID, String body,
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String from, Map metaData)
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{
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Invitation invitation = new Invitation(connection.getUser(), groupChatJID,
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workgroupName, sessionID, body, from, metaData);
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synchronized(invitationListeners) {
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for (Iterator i=invitationListeners.iterator(); i.hasNext(); ) {
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InvitationListener listener = (InvitationListener)i.next();
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listener.invitationReceived(invitation);
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}
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}
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}
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private void fireQueueUsersEvent(WorkgroupQueue queue, WorkgroupQueue.Status status,
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int averageWaitTime, Date oldestEntry, Set users)
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{
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synchronized(queueUsersListeners) {
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for (Iterator i=queueUsersListeners.iterator(); i.hasNext(); ) {
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QueueUsersListener listener = (QueueUsersListener)i.next();
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if (status != null) {
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listener.statusUpdated(queue, status);
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}
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if (averageWaitTime != -1) {
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listener.averageWaitTimeUpdated(queue, averageWaitTime);
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}
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if (oldestEntry != null) {
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listener.oldestEntryUpdated(queue, oldestEntry);
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}
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if (users != null) {
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listener.usersUpdated(queue, users);
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}
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}
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}
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}
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private void fireQueueAgentsEvent(WorkgroupQueue queue, int currentChats,
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int maxChats, Set agents)
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{
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synchronized(queueAgentsListeners) {
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for (Iterator i=queueAgentsListeners.iterator(); i.hasNext(); ) {
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QueueAgentsListener listener = (QueueAgentsListener)i.next();
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if (currentChats != -1) {
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listener.currentChatsUpdated(queue, currentChats);
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}
|
||
if (maxChats != -1) {
|
||
listener.maxChatsUpdated(queue, maxChats);
|
||
}
|
||
if (agents != null) {
|
||
listener.agentsUpdated(queue, agents);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
// PacketListener Implementation.
|
||
|
||
private void handlePacket(Packet packet) {
|
||
if (packet instanceof OfferRequestProvider.OfferRequestPacket) {
|
||
fireOfferRequestEvent((OfferRequestProvider.OfferRequestPacket)packet);
|
||
}
|
||
else if (packet instanceof Presence) {
|
||
Presence presence = (Presence)packet;
|
||
|
||
// The workgroup can send us a number of different presence packets. We
|
||
// check for different packet extensions to see what type of presence
|
||
// packet it is.
|
||
|
||
String queueName = StringUtils.parseResource(presence.getFrom());
|
||
WorkgroupQueue queue = (WorkgroupQueue)queues.get(queueName);
|
||
// If there isn't already an entry for the queue, create a new one.
|
||
if (queue == null) {
|
||
queue = new WorkgroupQueue(queueName);
|
||
queues.put(queueName, queue);
|
||
}
|
||
|
||
// QueueOverview packet extensions contain basic information about a queue.
|
||
QueueOverview queueOverview = (QueueOverview)presence.getExtension(
|
||
QueueOverview.ELEMENT_NAME, QueueOverview.NAMESPACE);
|
||
if (queueOverview != null) {
|
||
if (queueOverview.getStatus() == null) {
|
||
queue.setStatus(WorkgroupQueue.Status.CLOSED);
|
||
}
|
||
else {
|
||
queue.setStatus(queueOverview.getStatus());
|
||
}
|
||
queue.setAverageWaitTime(queueOverview.getAverageWaitTime());
|
||
queue.setOldestEntry(queueOverview.getOldestEntry());
|
||
// Fire event.
|
||
fireQueueUsersEvent(queue, queueOverview.getStatus(),
|
||
queueOverview.getAverageWaitTime(), queueOverview.getOldestEntry(),
|
||
null);
|
||
return;
|
||
}
|
||
|
||
// QueueDetails packet extensions contain information about the users in
|
||
// a queue.
|
||
QueueDetails queueDetails = (QueueDetails)packet.getExtension(
|
||
QueueDetails.ELEMENT_NAME, QueueDetails.NAMESPACE);
|
||
if (queueDetails != null) {
|
||
queue.setUsers(queueDetails.getUsers());
|
||
// Fire event.
|
||
fireQueueUsersEvent(queue, null, -1, null, queueDetails.getUsers());
|
||
return;
|
||
}
|
||
|
||
// Notify agent packets gives an overview of agent activity in a queue.
|
||
DefaultPacketExtension notifyAgents = (DefaultPacketExtension)presence.getExtension(
|
||
"notify-agents", "xmpp:workgroup");
|
||
if (notifyAgents != null) {
|
||
int currentChats = Integer.parseInt(notifyAgents.getValue("current-chats"));
|
||
int maxChats = Integer.parseInt(notifyAgents.getValue("max-chats"));
|
||
queue.setCurrentChats(currentChats);
|
||
queue.setMaxChats(maxChats);
|
||
// Fire event.
|
||
fireQueueAgentsEvent(queue, currentChats, maxChats, null);
|
||
return;
|
||
}
|
||
|
||
// Agent status
|
||
AgentStatus agentStatus = (AgentStatus)presence.getExtension(AgentStatus.ELEMENT_NAME,
|
||
AgentStatus.NAMESPACE);
|
||
if (agentStatus != null) {
|
||
Set agents = agentStatus.getAgents();
|
||
// Look for information about the agent that created this session and
|
||
// update local status fields accordingly.
|
||
for (Iterator i=agents.iterator(); i.hasNext(); ) {
|
||
Agent agent = (Agent)i.next();
|
||
if (agent.getUser().equals(StringUtils.parseBareAddress(
|
||
connection.getUser())))
|
||
{
|
||
maxChats = agent.getMaxChats();
|
||
currentChats = agent.getCurrentChats();
|
||
}
|
||
}
|
||
// Set the list of agents for the queue.
|
||
queue.setAgents(agents);
|
||
// Fire event.
|
||
fireQueueAgentsEvent(queue, -1, -1, agentStatus.getAgents());
|
||
return;
|
||
}
|
||
}
|
||
else if (packet instanceof Message) {
|
||
Message message = (Message)packet;
|
||
|
||
GroupChatInvitation invitation = (GroupChatInvitation)message.getExtension(
|
||
GroupChatInvitation.ELEMENT_NAME, GroupChatInvitation.NAMESPACE);
|
||
|
||
if (invitation != null) {
|
||
String roomAddress = invitation.getRoomAddress();
|
||
String sessionID = null;
|
||
Map metaData = null;
|
||
|
||
SessionID sessionIDExt = (SessionID)message.getExtension(SessionID.ELEMENT_NAME,
|
||
SessionID.NAMESPACE);
|
||
if (sessionIDExt != null) {
|
||
sessionID = sessionIDExt.getSessionID();
|
||
}
|
||
|
||
MetaData metaDataExt = (MetaData)message.getExtension(MetaData.ELEMENT_NAME,
|
||
MetaData.NAMESPACE);
|
||
if (metaDataExt != null) {
|
||
metaData = metaDataExt.getMetaData();
|
||
}
|
||
|
||
this.fireInvitationEvent(roomAddress, sessionID, message.getBody(),
|
||
message.getFrom(), metaData);
|
||
}
|
||
}
|
||
else if (packet instanceof OfferRevokeProvider.OfferRevokePacket) {
|
||
fireOfferRevokeEvent((OfferRevokeProvider.OfferRevokePacket)packet);
|
||
}
|
||
}
|
||
} |