/**
   * 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);
      }
    }
  }
Exemple #3
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    @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.
  }
Exemple #5
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 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);
    }
  }