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Smack/source/org/jivesoftware/smack/packet/RosterPacket.java
2007-01-07 23:03:16 +00:00

295 lines
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7.7 KiB
Java

/**
* $RCSfile$
* $Revision$
* $Date$
*
* Copyright 2003-2004 Jive Software.
*
* All rights reserved. Licensed 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.jivesoftware.smack.packet;
import org.jivesoftware.smack.util.StringUtils;
import java.util.*;
import java.util.concurrent.CopyOnWriteArraySet;
/**
* Represents XMPP roster packets.
*
* @author Matt Tucker
*/
public class RosterPacket extends IQ {
private final List<Item> rosterItems = new ArrayList<Item>();
/**
* Adds a roster item to the packet.
*
* @param item a roster item.
*/
public void addRosterItem(Item item) {
synchronized (rosterItems) {
rosterItems.add(item);
}
}
/**
* Returns the number of roster items in this roster packet.
*
* @return the number of roster items.
*/
public int getRosterItemCount() {
synchronized (rosterItems) {
return rosterItems.size();
}
}
/**
* Returns an unmodifiable collection for the roster items in the packet.
*
* @return an unmodifiable collection for the roster items in the packet.
*/
public Collection<Item> getRosterItems() {
synchronized (rosterItems) {
return Collections.unmodifiableList(new ArrayList<Item>(rosterItems));
}
}
public String getChildElementXML() {
StringBuilder buf = new StringBuilder();
buf.append("<query xmlns=\"jabber:iq:roster\">");
synchronized (rosterItems) {
for (Item entry : rosterItems) {
buf.append(entry.toXML());
}
}
buf.append("</query>");
return buf.toString();
}
/**
* A roster item, which consists of a JID, their name, the type of subscription, and
* the groups the roster item belongs to.
*/
public static class Item {
private String user;
private String name;
private ItemType itemType;
private ItemStatus itemStatus;
private final Set<String> groupNames;
/**
* Creates a new roster item.
*
* @param user the user.
* @param name the user's name.
*/
public Item(String user, String name) {
this.user = user.toLowerCase();
this.name = name;
itemType = null;
itemStatus = null;
groupNames = new CopyOnWriteArraySet<String>();
}
/**
* Returns the user.
*
* @return the user.
*/
public String getUser() {
return user;
}
/**
* Returns the user's name.
*
* @return the user's name.
*/
public String getName() {
return name;
}
/**
* Sets the user's name.
*
* @param name the user's name.
*/
public void setName(String name) {
this.name = name;
}
/**
* Returns the roster item type.
*
* @return the roster item type.
*/
public ItemType getItemType() {
return itemType;
}
/**
* Sets the roster item type.
*
* @param itemType the roster item type.
*/
public void setItemType(ItemType itemType) {
this.itemType = itemType;
}
/**
* Returns the roster item status.
*
* @return the roster item status.
*/
public ItemStatus getItemStatus() {
return itemStatus;
}
/**
* Sets the roster item status.
*
* @param itemStatus the roster item status.
*/
public void setItemStatus(ItemStatus itemStatus) {
this.itemStatus = itemStatus;
}
/**
* Returns an unmodifiable set of the group names that the roster item
* belongs to.
*
* @return an unmodifiable set of the group names.
*/
public Set<String> getGroupNames() {
return Collections.unmodifiableSet(groupNames);
}
/**
* Adds a group name.
*
* @param groupName the group name.
*/
public void addGroupName(String groupName) {
groupNames.add(groupName);
}
/**
* Removes a group name.
*
* @param groupName the group name.
*/
public void removeGroupName(String groupName) {
groupNames.remove(groupName);
}
public String toXML() {
StringBuilder buf = new StringBuilder();
buf.append("<item jid=\"").append(user).append("\"");
if (name != null) {
buf.append(" name=\"").append(StringUtils.escapeForXML(name)).append("\"");
}
if (itemType != null) {
buf.append(" subscription=\"").append(itemType).append("\"");
}
if (itemStatus != null) {
buf.append(" ask=\"").append(itemStatus).append("\"");
}
buf.append(">");
for (String groupName : groupNames) {
buf.append("<group>").append(StringUtils.escapeForXML(groupName)).append("</group>");
}
buf.append("</item>");
return buf.toString();
}
}
/**
* The subscription status of a roster item. An optional element that indicates
* the subscription status if a change request is pending.
*/
public static class ItemStatus {
/**
* Request to subcribe.
*/
public static final ItemStatus SUBSCRIPTION_PENDING = new ItemStatus("subscribe");
/**
* Request to unsubscribe.
*/
public static final ItemStatus UNSUBCRIPTION_PENDING = new ItemStatus("unsubscribe");
public static ItemStatus fromString(String value) {
if (value == null) {
return null;
}
value = value.toLowerCase();
if ("unsubscribe".equals(value)) {
return SUBSCRIPTION_PENDING;
}
else if ("subscribe".equals(value)) {
return SUBSCRIPTION_PENDING;
}
else {
return null;
}
}
private String value;
/**
* Returns the item status associated with the specified string.
*
* @param value the item status.
*/
private ItemStatus(String value) {
this.value = value;
}
public String toString() {
return value;
}
}
public static enum ItemType {
/**
* The user and subscriber have no interest in each other's presence.
*/
none,
/**
* The user is interested in receiving presence updates from the subscriber.
*/
to,
/**
* The subscriber is interested in receiving presence updates from the user.
*/
from,
/**
* The user and subscriber have a mutual interest in each other's presence.
*/
both,
/**
* The user wishes to stop receiving presence updates from the subscriber.
*/
remove
}
}