Java Code Examples for org.jivesoftware.smack.XMPPConnection#isConnected()

/**
 * Close the connection to the server
 */
public void closeConnection(final boolean closeSynchronously) {
    // Set isConnected to false first since connection.close triggers an
    // XMPPConnListener.connectionClosed() event which would result in
    // in a cyclic call of this close method.
    isConnected = false;
    final XMPPConnection connectionToClose = connection;
    final Runnable connectionCloseRunnable = new Runnable() {
        @Override
        public void run() {
            try {
                if (connectionToClose != null && connectionToClose.isConnected()) {
                    connectionToClose.disconnect();
                }
            } catch (final RuntimeException e) {
                log.warn("Error while trying to close instant messaging connection", e);
            }
        }
    };
    if (closeSynchronously) {
        connectionCloseRunnable.run();
    } else {
        taskExecutorService.runTask(connectionCloseRunnable);
    }
}
 

/**
 * Closes the current connection and restarts Spark.
 *
 * @param reason the reason for logging out. This can be if user gave no reason.
 */
public void closeConnectionAndInvoke(String reason) {
    final XMPPConnection con = SparkManager.getConnection();
    if (con.isConnected()) {
        if (reason != null) {
            Presence byePresence = new Presence(Presence.Type.unavailable, reason, -1, null);
            try
            {
                ((AbstractXMPPConnection)con).disconnect(byePresence);
            }
            catch ( SmackException.NotConnectedException e )
            {
                Log.error( "Unable to sign out with presence.", e);
                ((AbstractXMPPConnection)con).disconnect();
            }
        }
        else {
            ((AbstractXMPPConnection)con).disconnect();
        }
    }
    if (!restartApplicationWithScript()) {
        restartApplicationWithJava();
    }
}
 

/**
 * Prepares Spark for shutting down by first calling all {@link MainWindowListener}s and
 * setting the Agent to be offline.
 */
public void shutdown() {
    final XMPPConnection con = SparkManager.getConnection();

    if (con.isConnected()) {
        // Send disconnect.
        ((AbstractXMPPConnection)con).disconnect();
    }

    // Notify all MainWindowListeners
    try {
        fireWindowShutdown();
    }
    catch (Exception ex) {
        Log.error(ex);
    }
    // Close application.
    System.exit(1);

}
 

/**
 * Get a new STUN Server Address and port from the server.
 * If a error occurs or the server don't support STUN Service, null is returned.
 *
 * @param connection TODO javadoc me please
 * @return the STUN server address
 * @throws NotConnectedException if the XMPP connection is not connected.
 * @throws InterruptedException if the calling thread was interrupted.
 */
public static STUN getSTUNServer(XMPPConnection connection) throws NotConnectedException, InterruptedException {

    if (!connection.isConnected()) {
        return null;
    }

    STUN stunPacket = new STUN();
    DomainBareJid jid;
    try {
        jid = JidCreate.domainBareFrom(DOMAIN + "." + connection.getXMPPServiceDomain());
    } catch (XmppStringprepException e) {
        throw new AssertionError(e);
    }
    stunPacket.setTo(jid);

    StanzaCollector collector = connection.createStanzaCollectorAndSend(stunPacket);

    STUN response = collector.nextResult();

    // Cancel the collector.
    collector.cancel();

    return response;
}
 

/**
 * Get a new RTPBridge Candidate from the server.
 * If a error occurs or the server don't support RTPBridge Service, null is returned.
 *
 * @param connection TODO javadoc me please
 * @param sessionID TODO javadoc me please
 * @return the new RTPBridge
 * @throws NotConnectedException if the XMPP connection is not connected.
 * @throws InterruptedException if the calling thread was interrupted.
 */
public static RTPBridge getRTPBridge(XMPPConnection connection, String sessionID) throws NotConnectedException, InterruptedException {

    if (!connection.isConnected()) {
        return null;
    }

    RTPBridge rtpPacket = new RTPBridge(sessionID);
    DomainBareJid jid;
    try {
        jid = JidCreate.domainBareFrom(RTPBridge.NAME + "." + connection.getXMPPServiceDomain());
    } catch (XmppStringprepException e) {
        throw new AssertionError(e);
    }
    rtpPacket.setTo(jid);

    StanzaCollector collector = connection.createStanzaCollectorAndSend(rtpPacket);

    RTPBridge response = collector.nextResult();

    // Cancel the collector.
    collector.cancel();

    return response;
}
 

/**
 * Close the connection to the server
 */
public void closeConnection(final boolean closeSynchronously) {
    // Set isConnected to false first since connection.close triggers an
    // XMPPConnListener.connectionClosed() event which would result in
    // in a cyclic call of this close method.
    isConnected = false;
    final XMPPConnection connectionToClose = connection;
    final Runnable connectionCloseRunnable = new Runnable() {
        @Override
        public void run() {
            try {
                if (connectionToClose != null && connectionToClose.isConnected()) {
                    connectionToClose.disconnect();
                }
            } catch (final RuntimeException e) {
                log.warn("Error while trying to close instant messaging connection", e);
            }
        }
    };
    if (closeSynchronously) {
        connectionCloseRunnable.run();
    } else {
        taskExecutorService.runTask(connectionCloseRunnable);
    }
}
 

/**
*/
  @Override
  public int countSessions() {
      final XMPPConnection con = adminUser.getConnection();
      if (con != null && con.isConnected()) {
          // TODO:gs may put in other thread???
          SessionCount response;
          try {
              final IQ packet = new SessionCount();
              packet.setFrom(con.getUser());
              final PacketCollector collector = con.createPacketCollector(new PacketIDFilter(packet.getPacketID()));
              con.sendPacket(packet);
              response = (SessionCount) collector.nextResult(SmackConfiguration.getPacketReplyTimeout());
              collector.cancel();
              if (response == null) {
                  log.warn("Error while trying to count sessions at IM server. Response was null!");
                  return sessionCount;
              }
              if (response.getError() != null) {
                  log.warn("Error while trying to count sessions at IM server. " + response.getError().getMessage());
                  return sessionCount;
              } else if (response.getType() == IQ.Type.ERROR) {
                  log.warn("Error while trying to count sessions at IM server");
                  return sessionCount;
              }
              sessionCount = response.getNumberOfSessions();
              if (sessionCount > 0) {
                  return sessionCount - 1;
              }
              return sessionCount;

          } catch (final Exception e) {
              log.warn("Error while trying to count sessions at IM server. Response was null!", e);
              return sessionCount;
          }

      }
      return sessionCount;
  }
 

/**
*/
  @Override
  public String getPluginVersion() {
      final XMPPConnection con = adminUser.getConnection();
      if (con != null && con.isConnected()) {
          PluginVersion response;
          try {
              final IQ packet = new PluginVersion();
              packet.setFrom(con.getUser());
              final PacketCollector collector = con.createPacketCollector(new PacketIDFilter(packet.getPacketID()));
              // TODO:gs is sending packets over one connection thread save?
              con.sendPacket(packet);
              response = (PluginVersion) collector.nextResult(SmackConfiguration.getPacketReplyTimeout());
              collector.cancel();
              if (response == null) {
                  log.error("Error while trying to get version at IM server. Response was null!");
                  return version;
              }
              if (response.getError() != null) {
                  log.error("Error while trying to get version at IM server. " + response.getError().getMessage());
                  return version;
              } else if (response.getType() == IQ.Type.ERROR) {
                  log.error("Error while trying to get version at IM server");
                  return version;
              }
              return response.getVersion();

          } catch (final Exception e) {
              log.error("Error while trying to get version at IM server. Response was null!", e);
              return version;
          }

      }
      return version;
  }
 

public static int addGroup(Context context, String groupName) {
	String owner = UserInfo.getUserInfo(context).getUser();
	Cursor groupCursor = null;
	try {
		groupCursor = context.getContentResolver().query(
				RosterGroupColumns.CONTENT_URI,
				new String[] { RosterGroupColumns._ID },
				RosterGroupColumns.NAME + "='" + groupName + "' and "
						+ RosterGroupColumns.OWNER + "='" + owner + "'",
				null, null);
		if (groupCursor != null && groupCursor.getCount() != 0) {
			return -1;
		}

		XMPPConnection connection = XmppConnectionUtils.getInstance()
				.getConnection();
		if (connection != null && connection.isConnected()
				&& connection.isAuthenticated()) {
			connection.getRoster().createGroup(groupName);

			ContentValues values = new ContentValues();
			values.put(RosterGroupColumns.NAME, groupName);
			values.put(RosterGroupColumns.OWNER, owner);

			context.getContentResolver().insert(
					RosterGroupColumns.CONTENT_URI, values);
			return 0;
		} else {
			return -2;
		}
	} catch (Exception e) {
		return -2;
	} finally {
		if (groupCursor != null) {
			groupCursor.close();
			groupCursor = null;
		}
	}
}
 

/**
     * Check if the server support RTPBridge Service.
     *
     * @param connection TODO javadoc me please
     * @return true if the server supports the RTPBridge service
     * @throws XMPPErrorException if there was an XMPP error returned.
     * @throws NoResponseException if there was no response from the remote entity.
     * @throws NotConnectedException if the XMPP connection is not connected.
     * @throws InterruptedException if the calling thread was interrupted.
     */
    public static boolean serviceAvailable(XMPPConnection connection) throws NoResponseException,
                    XMPPErrorException, NotConnectedException, InterruptedException {

        if (!connection.isConnected()) {
            return false;
        }

        LOGGER.fine("Service listing");

        ServiceDiscoveryManager disco = ServiceDiscoveryManager
                .getInstanceFor(connection);
//            DiscoverItems items = disco.discoverItems(connection.getXMPPServiceDomain());
//            Iterator iter = items.getItems();
//            while (iter.hasNext()) {
//                DiscoverItems.Item item = (DiscoverItems.Item) iter.next();
//                if (item.getEntityID().startsWith("rtpbridge.")) {
//                    return true;
//                }
//            }

        DiscoverInfo discoInfo = disco.discoverInfo(connection.getXMPPServiceDomain());
        for (DiscoverInfo.Identity identity : discoInfo.getIdentities()) {
            if (identity.getName() != null && identity.getName().startsWith("rtpbridge")) {
                return true;
            }
        }

        return false;
    }
 

/**
 * Check if the server support RTPBridge Service.
 *
 * @param connection TODO javadoc me please
 * @param sessionID the session id.
 * @param pass the password.
 * @param proxyCandidate the proxy candidate.
 * @param localCandidate the local candidate.
 * @return the RTPBridge
 * @throws NotConnectedException if the XMPP connection is not connected.
 * @throws InterruptedException if the calling thread was interrupted.
 */
public static RTPBridge relaySession(XMPPConnection connection, String sessionID, String pass, TransportCandidate proxyCandidate, TransportCandidate localCandidate) throws NotConnectedException, InterruptedException {

    if (!connection.isConnected()) {
        return null;
    }

    RTPBridge rtpPacket = new RTPBridge(sessionID, RTPBridge.BridgeAction.change);
    DomainBareJid jid;
    try {
        jid = JidCreate.domainBareFrom(RTPBridge.NAME + "." + connection.getXMPPServiceDomain());
    } catch (XmppStringprepException e) {
        throw new AssertionError(e);
    }
    rtpPacket.setTo(jid);
    rtpPacket.setType(Type.set);

    rtpPacket.setPass(pass);
    rtpPacket.setPortA(localCandidate.getPort());
    rtpPacket.setPortB(proxyCandidate.getPort());
    rtpPacket.setHostA(localCandidate.getIp());
    rtpPacket.setHostB(proxyCandidate.getIp());

    // LOGGER.debug("Relayed to: " + candidate.getIp() + ":" + candidate.getPort());

    StanzaCollector collector = connection.createStanzaCollectorAndSend(rtpPacket);

    RTPBridge response = collector.nextResult();

    // Cancel the collector.
    collector.cancel();

    return response;
}
 

/**
*/
  @Override
  public String getPluginVersion() {
      final XMPPConnection con = adminUser.getConnection();
      if (con != null && con.isConnected()) {
          PluginVersion response;
          try {
              final IQ packet = new PluginVersion();
              packet.setFrom(con.getUser());
              final PacketCollector collector = con.createPacketCollector(new PacketIDFilter(packet.getPacketID()));
              // TODO:gs is sending packets over one connection thread save?
              con.sendPacket(packet);
              response = (PluginVersion) collector.nextResult(SmackConfiguration.getPacketReplyTimeout());
              collector.cancel();
              if (response == null) {
                  log.error("Error while trying to get version at IM server. Response was null!");
                  return version;
              }
              if (response.getError() != null) {
                  log.error("Error while trying to get version at IM server. " + response.getError().getMessage());
                  return version;
              } else if (response.getType() == IQ.Type.ERROR) {
                  log.error("Error while trying to get version at IM server");
                  return version;
              }
              return response.getVersion();

          } catch (final Exception e) {
              log.error("Error while trying to get version at IM server. Response was null!", e);
              return version;
          }

      }
      return version;
  }
 

/**
 * Check if the server support STUN Service.
 *
 * @param connection the connection
 * @return true if the server support STUN
 * @throws SmackException if Smack detected an exceptional situation.
 * @throws XMPPException if an XMPP protocol error was received.
 * @throws InterruptedException if the calling thread was interrupted.
 */
public static boolean serviceAvailable(XMPPConnection connection) throws XMPPException, SmackException, InterruptedException {

    if (!connection.isConnected()) {
        return false;
    }

    LOGGER.fine("Service listing");

    ServiceDiscoveryManager disco = ServiceDiscoveryManager.getInstanceFor(connection);
    DiscoverItems items = disco.discoverItems(connection.getXMPPServiceDomain());

    for (DiscoverItems.Item item : items.getItems()) {
        DiscoverInfo info = disco.discoverInfo(item.getEntityID());

        for (DiscoverInfo.Identity identity : info.getIdentities()) {
            if (identity.getCategory().equals("proxy") && identity.getType().equals("stun"))
                if (info.containsFeature(NAMESPACE))
                    return true;
        }

        LOGGER.fine(item.getName() + "-" + info.getType());

    }

    return false;
}
 

/**
*/
  @Override
  public int countSessions() {
      final XMPPConnection con = adminUser.getConnection();
      if (con != null && con.isConnected()) {
          // TODO:gs may put in other thread???
          SessionCount response;
          try {
              final IQ packet = new SessionCount();
              packet.setFrom(con.getUser());
              final PacketCollector collector = con.createPacketCollector(new PacketIDFilter(packet.getPacketID()));
              con.sendPacket(packet);
              response = (SessionCount) collector.nextResult(SmackConfiguration.getPacketReplyTimeout());
              collector.cancel();
              if (response == null) {
                  log.warn("Error while trying to count sessions at IM server. Response was null!");
                  return sessionCount;
              }
              if (response.getError() != null) {
                  log.warn("Error while trying to count sessions at IM server. " + response.getError().getMessage());
                  return sessionCount;
              } else if (response.getType() == IQ.Type.ERROR) {
                  log.warn("Error while trying to count sessions at IM server");
                  return sessionCount;
              }
              sessionCount = response.getNumberOfSessions();
              if (sessionCount > 0) {
                  return sessionCount - 1;
              }
              return sessionCount;

          } catch (final Exception e) {
              log.warn("Error while trying to count sessions at IM server. Response was null!", e);
              return sessionCount;
          }

      }
      return sessionCount;
  }
 

/**
 * Prepares Spark for shutting down by first calling all {@link MainWindowListener}s and
 * setting the Agent to be offline.
 *
 * @param sendStatus true if Spark should send a presence with a status message.
 */
public void logout(boolean sendStatus) {
    final XMPPConnection con = SparkManager.getConnection();
    String status = null;

    if (con.isConnected() && sendStatus) {
        final InputTextAreaDialog inputTextDialog = new InputTextAreaDialog();
        status = inputTextDialog.getInput(Res.getString("title.status.message"), Res.getString("message.current.status"),
            SparkRes.getImageIcon(SparkRes.USER1_MESSAGE_24x24), this);
    }

    if (status != null || !sendStatus)
    {
     // Notify all MainWindowListeners
     try {
         // Set auto-login to false;
         SettingsManager.getLocalPreferences().setAutoLogin(false);
         SettingsManager.saveSettings();

         fireWindowShutdown();
         setVisible(false);
     }
     finally {
         closeConnectionAndInvoke(status);
     }
    }
}
 

public boolean isXmppServiceStarted() {
	XMPPConnection connection = XmppConnectionUtils.getInstance()
			.getRawConnection();
	return connection != null && connection.isConnected();
}
 

public static void updatePresenceType(Context context, String user) {
	String currentUser = UserInfo.getUserInfo(context).getUser();
	user = StringUtils.escapeUserResource(user);

	Cursor cursor = null;
	try {
		cursor = context.getContentResolver().query(
				RosterColumns.CONTENT_URI,
				new String[] { RosterColumns._ID },
				RosterColumns.USERID + "='" + user + "' and "
						+ RosterColumns.OWNER + "='" + currentUser + "'",
				null, null);
		if (cursor != null && cursor.getCount() > 0) {
			cursor.moveToFirst();
			XMPPConnection connection = XmppConnectionUtils.getInstance()
					.getConnection();
			if (connection != null && connection.isConnected()
					&& connection.isAuthenticated()) {
				RosterEntry rosterEntry = connection.getRoster().getEntry(
						user);
				if (rosterEntry != null) {
					do {
						ContentValues values = new ContentValues();
						values.put(RosterColumns.ROSTER_TYPE, rosterEntry
								.getType().toString());
						context.getContentResolver().update(
								ContentUris.withAppendedId(
										RosterColumns.CONTENT_URI,
										cursor.getLong(0)), values, null,
								null);
					} while (cursor.moveToNext());
				}
			}
		}
	} catch (Exception e) {

	} finally {
		if (cursor != null) {
			cursor.close();
			cursor = null;
		}
	}
}
 

public static int deleteGroup(Context context, long groupId) {
	String owner = UserInfo.getUserInfo(context).getUser();

	Cursor groupCursor = null;
	Cursor entriesCursor = null;
	Cursor defaultGroupCursor = null;
	try {
		groupCursor = context.getContentResolver().query(
				ContentUris.withAppendedId(RosterGroupColumns.CONTENT_URI,
						groupId), new String[] { RosterGroupColumns.NAME },
				null, null, null);
		if (groupCursor == null || groupCursor.getCount() != 1) {
			return -1;
		}
		groupCursor.moveToFirst();
		String groupName = groupCursor.getString(0);
		if ("unfiled".equals(groupName)) {
			return -2;
		}

		defaultGroupCursor = context.getContentResolver().query(
				RosterGroupColumns.CONTENT_URI,
				new String[] { RosterGroupColumns._ID },
				RosterGroupColumns.NAME + "='unfiled' and "
						+ RosterGroupColumns.OWNER + "='" + owner + "'",
				null, null);
		if (defaultGroupCursor == null
				|| defaultGroupCursor.getCount() != 1) {
			return -1;
		}
		defaultGroupCursor.moveToFirst();
		int defaultGroupId = defaultGroupCursor.getInt(0);

		XMPPConnection connection = XmppConnectionUtils.getInstance()
				.getConnection();
		if (connection == null || !connection.isConnected()
				|| !connection.isAuthenticated()) {
			return -1;
		}

		RosterGroup rosterGroup = connection.getRoster()
				.getGroup(groupName);
		if (rosterGroup == null) {
			return -1;
		}

		Collection<RosterEntry> entries = rosterGroup.getEntries();
		if (entries != null && entries.size() > 0) {
			for (RosterEntry rosterEntry : entries) {
				rosterGroup.removeEntry(rosterEntry);
			}
		}

		entriesCursor = context.getContentResolver().query(
				RosterColumns.CONTENT_URI,
				new String[] { RosterColumns._ID },
				RosterColumns.GROUP_ID + "=" + groupId, null, null);
		List<Integer> mIntegers = new ArrayList<Integer>();
		if (entriesCursor != null && entriesCursor.getCount() > 0) {
			entriesCursor.moveToFirst();
			do {
				mIntegers.add(entriesCursor.getInt(0));
			} while (entriesCursor.moveToNext());
		}

		for (Integer integer : mIntegers) {
			ContentValues values = new ContentValues();
			values.put(RosterColumns.GROUP_ID, defaultGroupId);
			context.getContentResolver().update(
					ContentUris.withAppendedId(RosterColumns.CONTENT_URI,
							integer), values, null, null);
		}

		context.getContentResolver().delete(
				ContentUris.withAppendedId(RosterGroupColumns.CONTENT_URI,
						groupId), null, null);
		return 0;
	} catch (Exception e) {
		return -1;
	} finally {
		if (groupCursor != null) {
			groupCursor.close();
			groupCursor = null;
		}

		if (entriesCursor != null) {
			entriesCursor.close();
			entriesCursor = null;
		}

		if (defaultGroupCursor != null) {
			defaultGroupCursor.close();
			defaultGroupCursor = null;
		}
	}
}
 

/**
 * 加入会议室
 * 
 * @param user
 *            昵称
 * @param password
 *            会议室密码
 * @param roomsName
 *            会议室名
 */
public static MultiUserChat joinMultiUserChat(Context context, String user,
		String roomJid, String password) throws Exception {
	XMPPConnection connection = XmppConnectionUtils.getInstance()
			.getRawConnection();
	if (connection == null || !connection.isConnected()
			|| !connection.isAuthenticated())
		throw new Exception("connection not ready");

	Cursor cursor = null;
	try {
		// 使用XMPPConnection创建一个MultiUserChat窗口
		MultiUserChat muc = new MultiUserChat(connection, roomJid);
		// 聊天室服务将会决定要接受的历史记录数量
		DiscussionHistory history = new DiscussionHistory();

		cursor = context.getContentResolver().query(
				MultiChatRoomColumns.CONTENT_URI,
				new String[] { MultiChatRoomColumns.LAST_MSG_TIME },
				MultiChatRoomColumns.ROOM_JID + "='" + roomJid + "' and "
						+ MultiChatRoomColumns.OWNER + "='"
						+ UserInfo.getUserInfo(context).getUser() + "'",
				null, null);
		if (cursor != null && cursor.getCount() == 1) {
			cursor.moveToFirst();
			history.setSince(new Date(cursor.getLong(0)));
		} else {
			history.setMaxStanzas(15);
		}
		// 用户加入聊天室
		muc.join(StringUtils.escapeUserHost(user), password, history,
				SmackConfiguration.getPacketReplyTimeout());
		return muc;
	} catch (Exception e) {
		throw e;
	} finally {
		if (cursor != null) {
			cursor.close();
			cursor = null;
		}
	}
}
 

@Override
public SampleResult sample(Entry entry) {
    SampleResult res = new SampleResult();
    res.setSampleLabel(getName());
    res.setDataType(SampleResult.TEXT);
    res.setSuccessful(true);
    res.setResponseCode("200");
    res.setResponseMessage("OK");

    res.sampleStart();
    try {
        if (connConfig == null) {
            throw new RuntimeException("Cannot sample XMPP without XMPP Connection component");
        }

        XMPPConnection conn = getXMPPConnection();

        if (conn == null) {
            throw new RuntimeException("No XMPP Connection available");
        }

        String headers = "Connection ID: " + conn.getConnectionID() + "\r\n";

        String action = getAction();
        if (!conn.isConnected() && !action.equals(Connect.class.getCanonicalName())) {
            log.error("Please call Connect before calling other actions");
            throw new SmackException.NotConnectedException();
        }

        headers += "User: " + conn.getUser() + "\r\n";

        res.setRequestHeaders(headers);

        AbstractXMPPAction actObject = connConfig.getActions().get(action);
        if (actObject.perform(this, res) == null) {
            return null;
        }
    } catch (Exception e) {
        log.error("Error in XMPP Sampler: ", e);
        res.setSuccessful(false);
        res.setResponseCode("500");
        res.setResponseMessage((e.getMessage() == null || e.getMessage().isEmpty()) ? e.toString() : e.getMessage());
        res.setResponseData(ExceptionUtils.getStackTrace(e).getBytes());
    }

    res.sampleEnd();
    return res;
}