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1. UNDO: Protects the access for certain methods by waiting a few seconds when the roster has not been initialized yet
2. Provides a static method to set default subscription mode 3. Modifies RosterPacketListener to remove empty groups caused by local entry removals git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@2212 b35dd754-fafc-0310-a699-88a17e54d16e
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1 changed files with 54 additions and 58 deletions
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@ -96,6 +96,12 @@ public class Roster {
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*/
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public static final int SUBSCRIPTION_MANUAL = 2;
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/**
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* The default subscription processing mode to use when a Roster is created. By default
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* all subscription requests are automatically accepted.
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*/
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private static int defaulSubscriptionMode = SUBSCRIPTION_ACCEPT_ALL;
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private XMPPConnection connection;
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private Map groups;
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private List entries;
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@ -106,7 +112,31 @@ public class Roster {
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// has been recieved and processed.
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boolean rosterInitialized = false;
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private int subscriptionMode = SUBSCRIPTION_ACCEPT_ALL;
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private int subscriptionMode = getDefaulSubscriptionMode();
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/**
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* Returns the default subscription processing mode to use when a new Roster is created. The
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* subscription processing mode dictates what action Smack will take when subscription
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* requests from other users are made. The default subscription mode
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* is {@link #SUBSCRIPTION_ACCEPT_ALL}.
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*
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* @return the default subscription mode to use for new Rosters
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*/
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public static int getDefaulSubscriptionMode() {
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return defaulSubscriptionMode;
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}
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/**
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* Sets the default subscription processing mode to use when a new Roster is created. The
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* subscription processing mode dictates what action Smack will take when subscription
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* requests from other users are made. The default subscription mode
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* is {@link #SUBSCRIPTION_ACCEPT_ALL}.
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*
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* @param subscriptionMode the default subscription mode to use for new Rosters.
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*/
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public static void setDefaulSubscriptionMode(int subscriptionMode) {
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defaulSubscriptionMode = subscriptionMode;
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}
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/**
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* Creates a new roster.
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@ -166,7 +196,6 @@ public class Roster {
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* Reloads the entire roster from the server. This is an asynchronous operation,
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* which means the method will return immediately, and the roster will be
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* reloaded at a later point when the server responds to the reload request.
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*
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*/
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public void reload() {
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connection.sendPacket(new RosterPacket());
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@ -228,9 +257,6 @@ public class Roster {
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* the roster entry won't belong to a group.
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*/
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public void createEntry(String user, String name, String [] groups) throws XMPPException {
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if (!rosterInitialized) {
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waitUntilInitialized();
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}
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// Create and send roster entry creation packet.
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RosterPacket rosterPacket = new RosterPacket();
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rosterPacket.setType(IQ.Type.SET);
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@ -335,9 +361,6 @@ public class Roster {
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* @return the number of unfiled entries in the roster.
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*/
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public int getUnfiledEntryCount() {
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if (!rosterInitialized) {
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waitUntilInitialized();
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}
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synchronized (unfiledEntries) {
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return unfiledEntries.size();
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}
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@ -350,9 +373,6 @@ public class Roster {
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* @return an iterator the unfiled roster entries.
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*/
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public Iterator getUnfiledEntries() {
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if (!rosterInitialized) {
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waitUntilInitialized();
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}
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synchronized (unfiledEntries) {
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return Collections.unmodifiableList(new ArrayList(unfiledEntries)).iterator();
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}
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@ -369,9 +389,6 @@ public class Roster {
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if (user == null) {
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return null;
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}
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if (!rosterInitialized) {
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waitUntilInitialized();
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}
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// Roster entries never include a resource so remove the resource
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// if it's a part of the XMPP address.
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user = StringUtils.parseBareAddress(user);
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@ -396,9 +413,6 @@ public class Roster {
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if (user == null) {
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return false;
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}
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if (!rosterInitialized) {
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waitUntilInitialized();
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}
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// Roster entries never include a resource so remove the resource
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// if it's a part of the XMPP address.
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user = StringUtils.parseBareAddress(user);
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@ -443,39 +457,12 @@ public class Roster {
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* @return an iterator for all roster groups.
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*/
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public Iterator getGroups() {
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if (!rosterInitialized) {
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waitUntilInitialized();
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}
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synchronized (groups) {
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List groupsList = Collections.unmodifiableList(new ArrayList(groups.values()));
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return groupsList.iterator();
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}
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}
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/**
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* Waits until the roster has been initialized or 2 seconds has elapsed. It is required to
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* wait before the user can make use of the roster when for example this is the first time
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* the user has asked for the entries after calling login and we want to wait up to 2 seconds
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* for the server to send back the user's roster.<p>
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*
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* This behavior shields API users from having to worry about the fact that roster operations
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* are asynchronous, although they'll still have to listen for changes to the roster.
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*
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*/
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private void waitUntilInitialized() {
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if (!rosterInitialized) {
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int elapsed = 0;
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while (!rosterInitialized && elapsed <= 2000) {
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try {
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Thread.sleep(500);
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}
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catch (Exception e) {
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}
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elapsed += 500;
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}
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}
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}
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/**
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* Returns the presence info for a particular user, or <tt>null</tt> if the user
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* is unavailable (offline) or if no presence information is available, such as
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@ -708,11 +695,9 @@ public class Roster {
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// Find the list of groups that the user currently belongs to.
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List currentGroupNames = new ArrayList();
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if (rosterInitialized) {
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for (Iterator j = entry.getGroups(); j.hasNext(); ) {
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RosterGroup group = (RosterGroup)j.next();
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currentGroupNames.add(group.getName());
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}
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for (Iterator j = entry.getGroups(); j.hasNext(); ) {
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RosterGroup group = (RosterGroup)j.next();
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currentGroupNames.add(group.getName());
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}
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// If the packet is not of the type REMOVE then add the entry to the groups
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@ -743,18 +728,29 @@ public class Roster {
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}
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// Loop through any groups that remain and remove the entries.
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if (rosterInitialized) {
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for (int n=0; n<currentGroupNames.size(); n++) {
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String groupName = (String)currentGroupNames.get(n);
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RosterGroup group = getGroup(groupName);
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group.removeEntryLocal(entry);
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if (group.getEntryCount() == 0) {
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synchronized (groups) {
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groups.remove(groupName);
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}
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// This is neccessary for the case of remote entry removals.
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for (int n=0; n<currentGroupNames.size(); n++) {
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String groupName = (String)currentGroupNames.get(n);
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RosterGroup group = getGroup(groupName);
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group.removeEntryLocal(entry);
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if (group.getEntryCount() == 0) {
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synchronized (groups) {
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groups.remove(groupName);
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}
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}
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}
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// Remove all the groups with no entries. We have to do this because
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// RosterGroup.removeEntry removes the entry immediately (locally) and the
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// group could remain empty.
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// TODO Check the performance/logic for rosters with large number of groups
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for (Iterator it = getGroups(); it.hasNext();) {
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RosterGroup group = (RosterGroup)it.next();
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if (group.getEntryCount() == 0) {
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synchronized (groups) {
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groups.remove(group.getName());
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}
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}
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}
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}
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// Mark the roster as initialized.
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