/**
* Determines whether {@code effect} has been paused/stopped by the remote peer. The determination
* is based on counting frames and is triggered by the receipt of (a piece of) a new (video) frame
* by {@code cause}.
*
* @param cause the {@code SimulcastLayer} which has received (a piece of) a new (video) frame and
* has thus triggered a check on {@code effect}
* @param pkt the {@code RawPacket} which was received by {@code cause} and possibly influenced
* the decision to trigger a check on {@code effect}
* @param effect the {@code SimulcastLayer} which is to be checked whether it looks like it has
* been paused/stopped by the remote peer
* @param endIndexInSimulcastLayerFrameHistory
*/
private void maybeTimeout(
SimulcastLayer cause,
RawPacket pkt,
SimulcastLayer effect,
int endIndexInSimulcastLayerFrameHistory) {
Iterator<SimulcastLayer> it = simulcastLayerFrameHistory.iterator();
boolean timeout = true;
for (int ix = 0; it.hasNext() && ix < endIndexInSimulcastLayerFrameHistory; ++ix) {
if (it.next() == effect) {
timeout = false;
break;
}
}
if (timeout) {
effect.maybeTimeout(pkt);
if (!effect.isStreaming()) {
// Since effect has been determined to have been paused/stopped
// by the remote peer, its possible presence in
// simulcastLayerFrameHistory is irrelevant now. In other words,
// remove effect from simulcastLayerFrameHistory.
while (it.hasNext()) {
if (it.next() == effect) it.remove();
}
}
}
}
/**
* 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);
}
}
}
@Override
public void run() {
synchronized (RESTReservations.this) {
Iterator<Conference> conferenceIterator = conferenceMap.values().iterator();
while (conferenceIterator.hasNext()) {
Conference conference = conferenceIterator.next();
Date startTimeDate = conference.getStartTime();
if (startTimeDate == null) {
logger.error("No 'start_time' for conference: " + conference.getName());
continue;
}
long startTime = startTimeDate.getTime();
long duration = conference.getDuration();
// Convert duration to millis
duration = duration * 1000L;
long now = System.currentTimeMillis();
if (now - startTime > duration - EXPIRE_INTERVAL) {
// Destroy the conference
String mucRoomName = conference.getMucRoomName();
deleteConference(conference.getId());
conferenceIterator.remove();
focusManager.destroyConference(mucRoomName, "Scheduled conference duration exceeded.");
}
}
}
}
/**
* Notifies this {@code SimulcastReceiver} that a specific {@code SimulcastReceiver} has detected
* the start of a new video frame in the RTP stream that it represents. Determines whether any of
* {@link #simulcastLayers} other than {@code source} have been paused/stopped by the remote peer.
* The determination is based on counting (video) frames.
*
* @param source the {@code SimulcastLayer} which is the source of the event i.e. which has
* detected the start of a new video frame in the RTP stream that it represents
* @param pkt the {@code RawPacket} which was received by {@code source} and possibly influenced
* the decision that a new view frame was started in the RTP stream represented by {@code
* source}
* @param layers the set of {@code SimulcastLayer}s managed by this {@code SimulcastReceiver}.
* Explicitly provided to the method in order to avoid invocations of {@link
* #getSimulcastLayers()} because the latter makes a copy at the time of this writing.
*/
private void simulcastLayerFrameStarted(
SimulcastLayer source, RawPacket pkt, SimulcastLayer[] layers) {
// Allow the value of the constant TIMEOUT_ON_FRAME_COUNT to disable (at
// compile time) the frame-based approach to the detection of layer
// drops.
if (TIMEOUT_ON_FRAME_COUNT <= 1) return;
// Timeouts in layers caused by source may occur only based on the span
// (of time or received frames) during which source has received
// TIMEOUT_ON_FRAME_COUNT number of frames. The current method
// invocation signals the receipt of 1 frame by source.
int indexOfLastSourceOccurrenceInHistory = -1;
int sourceFrameCount = 0;
int ix = 0;
for (Iterator<SimulcastLayer> it = simulcastLayerFrameHistory.iterator(); it.hasNext(); ++ix) {
if (it.next() == source) {
if (indexOfLastSourceOccurrenceInHistory != -1) {
// Prune simulcastLayerFrameHistory so that it does not
// become unnecessarily long.
it.remove();
} else if (++sourceFrameCount >= TIMEOUT_ON_FRAME_COUNT - 1) {
// The span of TIMEOUT_ON_FRAME_COUNT number of frames
// received by source only is to be examined for the
// purposes of timeouts. The current method invocations
// signals the receipt of 1 frame by source so
// TIMEOUT_ON_FRAME_COUNT - 1 occurrences of source in
// simulcastLayerFrameHistory is enough.
indexOfLastSourceOccurrenceInHistory = ix;
}
}
}
if (indexOfLastSourceOccurrenceInHistory != -1) {
// Presumably, if a SimulcastLayer is active, all SimulcastLayers
// before it (according to SimulcastLayer's order) are active as
// well. Consequently, timeouts may occur in SimulcastLayers which
// are after source.
boolean maybeTimeout = false;
for (SimulcastLayer layer : layers) {
if (maybeTimeout) {
// There's no point in timing layer out if it's timed out
// already.
if (layer.isStreaming()) {
maybeTimeout(source, pkt, layer, indexOfLastSourceOccurrenceInHistory);
}
} else if (layer == source) {
maybeTimeout = true;
}
}
}
// As previously stated, the current method invocation signals the
// receipt of 1 frame by source.
simulcastLayerFrameHistory.add(0, source);
// TODO Prune simulcastLayerFrameHistory by forgetting so that it does
// not become too long.
}
private void nudge() {
for (Iterator<RecorderEvent> iter = pendingEvents.iterator(); iter.hasNext(); ) {
RecorderEvent ev = iter.next();
long instant = getSynchronizer().getLocalTime(ev.getSsrc(), ev.getRtpTimestamp());
if (instant != -1) {
iter.remove();
ev.setInstant(instant);
handler.handleEvent(ev);
}
}
}
/**
* Searches for contact ids in history of recent messages.
*
* @param provider
* @param after
* @return
*/
List<String> getRecentContactIDs(String provider, Date after) {
List<String> res = new ArrayList<String>();
try {
History history = getHistory();
if (history != null) {
Iterator<HistoryRecord> recs = history.getReader().findLast(NUMBER_OF_MSGS_IN_HISTORY);
SimpleDateFormat sdf = new SimpleDateFormat(HistoryService.DATE_FORMAT);
while (recs.hasNext()) {
HistoryRecord hr = recs.next();
String contact = null;
String recordProvider = null;
Date timestamp = null;
for (int i = 0; i < hr.getPropertyNames().length; i++) {
String propName = hr.getPropertyNames()[i];
if (propName.equals(STRUCTURE_NAMES[0])) recordProvider = hr.getPropertyValues()[i];
else if (propName.equals(STRUCTURE_NAMES[1])) contact = hr.getPropertyValues()[i];
else if (propName.equals(STRUCTURE_NAMES[2])) {
try {
timestamp = sdf.parse(hr.getPropertyValues()[i]);
} catch (ParseException e) {
timestamp = new Date(Long.parseLong(hr.getPropertyValues()[i]));
}
}
}
if (recordProvider == null || contact == null) continue;
if (after != null && timestamp != null && timestamp.before(after)) continue;
if (recordProvider.equals(provider)) res.add(contact);
}
}
} catch (IOException ex) {
logger.error("cannot create recent_messages history", ex);
}
return res;
}
/**
* parses received phones list and creates/resolves groups and contacts
*
* @param objReceived the obj with data.
*/
private void phonesRecieved(JSONObject objReceived) {
try {
if (!objReceived.get("function").equals("sendlist") || !objReceived.containsKey("payload"))
return;
JSONObject payload = (JSONObject) objReceived.get("payload");
/*
* FIXME The following contains two very inefficient Map-iterating
* loops.
*/
Iterator iter = payload.keySet().iterator();
List<JSONObject> phoneList = new ArrayList<JSONObject>();
while (iter.hasNext()) {
JSONObject obj = (JSONObject) payload.get(iter.next());
Iterator phonesIter = obj.keySet().iterator();
while (phonesIter.hasNext()) phoneList.add((JSONObject) obj.get(phonesIter.next()));
}
for (JSONObject phone : phoneList) {
try {
// don't handle non sip phones
if (!((String) phone.get("tech")).equalsIgnoreCase("sip")) continue;
String groupName = (String) phone.get("context");
ContactGroupSipImpl parentGroup = findGroupByName(groupName);
if (parentGroup == null) {
parentGroup = new ContactGroupSipImpl(groupName, sipProvider);
parentGroup.setPersistent(true);
getRootGroup().addSubgroup(parentGroup);
fireGroupEvent(parentGroup, ServerStoredGroupEvent.GROUP_CREATED_EVENT);
}
String number = (String) phone.get("number");
Address address = sipProvider.parseAddressString(number);
// if the contact is already in the contact list
ContactSipImpl contact = parentOperationSet.resolveContactID(address.toString());
if (contact == null) {
contact = new ContactSipImpl(address, sipProvider);
contact.setDisplayName(phone.get("firstname") + " " + phone.get("lastname"));
contact.setResolved(true);
parentGroup.addContact(contact);
fireContactAdded(parentGroup, contact);
} else {
contact.setDisplayName(phone.get("firstname") + " " + phone.get("lastname"));
contact.setResolved(true);
fireContactResolved(parentGroup, contact);
}
} catch (Throwable t) {
logger.error("Error parsing " + phone);
}
}
} catch (Throwable t) {
logger.error("Error init list from server", t);
}
}