/**
* Permanently removes locally stored message history for the metacontact, remove any recent
* contacts if any.
*/
public void eraseLocallyStoredHistory(MetaContact contact) throws IOException {
List<ComparableEvtObj> toRemove = null;
synchronized (recentMessages) {
toRemove = new ArrayList<ComparableEvtObj>();
Iterator<Contact> iter = contact.getContacts();
while (iter.hasNext()) {
Contact item = iter.next();
String id = item.getAddress();
ProtocolProviderService provider = item.getProtocolProvider();
for (ComparableEvtObj msc : recentMessages) {
if (msc.getProtocolProviderService().equals(provider)
&& msc.getContactAddress().equals(id)) {
toRemove.add(msc);
}
}
}
recentMessages.removeAll(toRemove);
}
if (recentQuery != null) {
for (ComparableEvtObj msc : toRemove) {
recentQuery.fireContactRemoved(msc);
}
}
}
/** Adds recent message in history. */
private void saveRecentMessageToHistory(ComparableEvtObj msc) {
synchronized (historyID) {
// and create it
try {
History history = getHistory();
HistoryWriter writer = history.getWriter();
SimpleDateFormat sdf = new SimpleDateFormat(HistoryService.DATE_FORMAT);
writer.addRecord(
new String[] {
msc.getProtocolProviderService().getAccountID().getAccountUniqueID(),
msc.getContactAddress(),
sdf.format(msc.getTimestamp()),
RECENT_MSGS_VER
},
NUMBER_OF_MSGS_IN_HISTORY);
} catch (IOException ex) {
logger.error("cannot create recent_messages history", ex);
return;
}
}
}
/**
* 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);
}
}
/**
* Handles new events.
*
* @param obj the event object
* @param provider the provider
* @param id the id of the source of the event
*/
private void handle(EventObject obj, ProtocolProviderService provider, String id) {
// check if provider - contact exist update message content
synchronized (recentMessages) {
ComparableEvtObj existingMsc = null;
for (ComparableEvtObj msc : recentMessages) {
if (msc.getProtocolProviderService().equals(provider)
&& msc.getContactAddress().equals(id)) {
// update
msc.update(obj);
updateRecentMessageToHistory(msc);
existingMsc = msc;
}
}
if (existingMsc != null) {
Collections.sort(recentMessages);
oldestRecentMessage = recentMessages.get(recentMessages.size() - 1).getTimestamp();
if (recentQuery != null) {
recentQuery.updateContact(existingMsc, existingMsc.getEventObject());
recentQuery.fireContactChanged(existingMsc);
}
return;
}
// if missing create source contact
// and update recent messages, trim and sort
MessageSourceContact newSourceContact =
new MessageSourceContact(obj, MessageSourceService.this);
newSourceContact.initDetails(obj);
// we have already checked for duplicate
ComparableEvtObj newMsg = new ComparableEvtObj(obj);
recentMessages.add(newMsg);
Collections.sort(recentMessages);
oldestRecentMessage = recentMessages.get(recentMessages.size() - 1).getTimestamp();
// trim
List<ComparableEvtObj> removedItems = null;
if (recentMessages.size() > numberOfMessages) {
removedItems =
new ArrayList<ComparableEvtObj>(
recentMessages.subList(numberOfMessages, recentMessages.size()));
recentMessages.removeAll(removedItems);
}
// save
saveRecentMessageToHistory(newMsg);
// no query nothing to fire
if (recentQuery == null) return;
// now fire
if (removedItems != null) {
for (ComparableEvtObj msc : removedItems) {
recentQuery.fireContactRemoved(msc);
}
}
recentQuery.addQueryResult(newSourceContact);
}
}