/**
* When a provider is added. As searching can be slow especially when handling special type of
* messages (with subType) this need to be run in new Thread.
*
* @param provider ProtocolProviderService
*/
private void handleProviderAddedInSeparateThread(
ProtocolProviderService provider, boolean isStatusChanged) {
// lets check if we have cached recent messages for this provider, and
// fire events if found and are newer
synchronized (recentMessages) {
List<ComparableEvtObj> cachedRecentMessages =
getCachedRecentMessages(provider, isStatusChanged);
if (cachedRecentMessages.isEmpty()) {
// maybe there is no cached history for this
// let's check
// load it not from cache, but do a local search
Collection<EventObject> res =
messageHistoryService.findRecentMessagesPerContact(
numberOfMessages, provider.getAccountID().getAccountUniqueID(), null, isSMSEnabled);
List<ComparableEvtObj> newMsc = new ArrayList<ComparableEvtObj>();
processEventObjects(res, newMsc, isStatusChanged);
addNewRecentMessages(newMsc);
for (ComparableEvtObj msc : newMsc) {
saveRecentMessageToHistory(msc);
}
} else addNewRecentMessages(cachedRecentMessages);
}
}
/**
* Searches for entries in cached recent messages in history.
*
* @param provider the provider which contact messages we will search
* @param isStatusChanged is the search because of status changed
* @return entries in cached recent messages in history.
*/
private List<ComparableEvtObj> getCachedRecentMessages(
ProtocolProviderService provider, boolean isStatusChanged) {
String providerID = provider.getAccountID().getAccountUniqueID();
List<String> recentMessagesContactIDs =
getRecentContactIDs(
providerID, recentMessages.size() < numberOfMessages ? null : oldestRecentMessage);
List<ComparableEvtObj> cachedRecentMessages = new ArrayList<ComparableEvtObj>();
for (String contactID : recentMessagesContactIDs) {
Collection<EventObject> res =
messageHistoryService.findRecentMessagesPerContact(
numberOfMessages, providerID, contactID, isSMSEnabled);
processEventObjects(res, cachedRecentMessages, isStatusChanged);
}
return cachedRecentMessages;
}
/**
* A provider has been removed.
*
* @param provider the ProtocolProviderService that has been unregistered.
*/
void handleProviderRemoved(ProtocolProviderService provider) {
// lets remove the recent messages for this provider, and update
// with recent messages for the available providers
synchronized (recentMessages) {
if (provider != null) {
List<ComparableEvtObj> removedItems = new ArrayList<ComparableEvtObj>();
for (ComparableEvtObj msc : recentMessages) {
if (msc.getProtocolProviderService().equals(provider)) removedItems.add(msc);
}
recentMessages.removeAll(removedItems);
if (!recentMessages.isEmpty())
oldestRecentMessage = recentMessages.get(recentMessages.size() - 1).getTimestamp();
else oldestRecentMessage = null;
if (recentQuery != null) {
for (ComparableEvtObj msc : removedItems) {
recentQuery.fireContactRemoved(msc);
}
}
}
// handleProviderRemoved can be invoked due to stopped
// history service, if this is the case we do not want to
// update messages
if (!this.messageHistoryService.isHistoryLoggingEnabled()) return;
// lets do the same as we enable provider
// for all registered providers and finally fire events
List<ComparableEvtObj> contactsToAdd = new ArrayList<ComparableEvtObj>();
for (ProtocolProviderService pps : messageHistoryService.getCurrentlyAvailableProviders()) {
contactsToAdd.addAll(getCachedRecentMessages(pps, true));
}
addNewRecentMessages(contactsToAdd);
}
}