/**
* Adds all contacts contained in the given <tt>MetaContactGroup</tt> matching the current filter
* and not contained in the contact list.
*
* @param metaGroup the <tt>MetaContactGroup</tt>, which matching contacts to add
* @param query the <tt>MetaContactQuery</tt> that notifies interested listeners of the results of
* this matching
* @param resultCount the initial result count we would insert directly to the contact list
* without firing events
*/
private void addMatching(MetaContactGroup metaGroup, MetaContactQuery query, int resultCount) {
Iterator<MetaContact> childContacts = metaGroup.getChildContacts();
while (childContacts.hasNext() && !query.isCanceled()) {
MetaContact metaContact = childContacts.next();
if (isMatching(metaContact)) {
resultCount++;
if (resultCount <= INITIAL_CONTACT_COUNT) {
UIGroup uiGroup = null;
if (!MetaContactListSource.isRootGroup(metaGroup)) {
synchronized (metaGroup) {
uiGroup = MetaContactListSource.getUIGroup(metaGroup);
if (uiGroup == null) uiGroup = MetaContactListSource.createUIGroup(metaGroup);
}
}
if (logger.isDebugEnabled())
logger.debug("Presence filter contact added: " + metaContact.getDisplayName());
UIContactImpl newUIContact;
synchronized (metaContact) {
newUIContact = MetaContactListSource.getUIContact(metaContact);
if (newUIContact == null) {
newUIContact = MetaContactListSource.createUIContact(metaContact);
}
}
GuiActivator.getContactList().addContact(newUIContact, uiGroup, true, true);
query.setInitialResultCount(resultCount);
} else {
query.fireQueryEvent(metaContact);
}
}
}
// If in the meantime the filtering has been stopped we return here.
if (query.isCanceled()) return;
Iterator<MetaContactGroup> subgroups = metaGroup.getSubgroups();
while (subgroups.hasNext() && !query.isCanceled()) {
MetaContactGroup subgroup = subgroups.next();
if (isMatching(subgroup)) {
UIGroup uiGroup;
synchronized (subgroup) {
uiGroup = MetaContactListSource.getUIGroup(subgroup);
if (uiGroup == null) uiGroup = MetaContactListSource.createUIGroup(subgroup);
}
GuiActivator.getContactList().addGroup(uiGroup, true);
addMatching(subgroup, query, resultCount);
}
}
}
/**
* Returns <tt>true</tt> if offline contacts are shown or if the given <tt>MetaContactGroup</tt>
* contains online contacts.
*
* @param metaGroup the <tt>MetaContactGroup</tt> to check
* @return <tt>true</tt> if the given <tt>MetaContactGroup</tt> is matching this filter
*/
private boolean isMatching(MetaContactGroup metaGroup) {
return isShowOffline
|| (metaGroup.countOnlineChildContacts() > 0)
|| MetaContactListSource.isNewGroup(metaGroup);
}