/**
* Applies this filter. This filter is applied over the <tt>MetaContactListService</tt>.
*
* @param filterQuery the query which keeps track of the filtering results
*/
public void applyFilter(FilterQuery filterQuery) {
// Create the query that will track filtering.
MetaContactQuery query = new MetaContactQuery();
// Add this query to the filterQuery.
filterQuery.addContactQuery(query);
for (int cssType : contactSourcePreferences.keySet()) {
Iterator<UIContactSource> filterSources =
GuiActivator.getContactList().getContactSources(cssType).iterator();
while (filterSources.hasNext()) {
UIContactSource filterSource = filterSources.next();
Integer prefValue = contactSourcePreferences.get(cssType);
// We are setting the index from contactSourcePreferences map to
// the contact source. This index is set to reorder the sources
// in the contact list.
if (prefValue != null) filterSource.setContactSourceIndex(prefValue);
ContactSourceService sourceService = filterSource.getContactSourceService();
ContactQuery contactQuery = sourceService.createContactQuery(null);
// Add this query to the filterQuery.
filterQuery.addContactQuery(contactQuery);
contactQuery.addContactQueryListener(GuiActivator.getContactList());
contactQuery.start();
}
}
// Closes this filter to indicate that we finished adding queries to it.
filterQuery.close();
query.addContactQueryListener(GuiActivator.getContactList());
int resultCount = 0;
addMatching(GuiActivator.getContactListService().getRoot(), query, resultCount);
query.fireQueryEvent(
query.isCanceled()
? MetaContactQueryStatusEvent.QUERY_CANCELED
: MetaContactQueryStatusEvent.QUERY_COMPLETED);
}
/**
* 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);
}
}
}
