Example usage for javax.websocket Session isOpen

Introduction

In this page you can find the example usage for javax.websocket Session isOpen.

Prototype

boolean isOpen();

Source Link

Usage

From source file:org.b3log.symphony.processor.channel.ArticleListChannel.java

/**
 * Notifies the specified article heat message to browsers.
 *
 * @param message the specified message, for example      <pre>
 * {/*ww  w  .j  a va 2 s . c  o  m*/
 *     "articleId": "",
 *     "operation": "" // "+"/"-"
 * }
 * </pre>
 */
public static void notifyHeat(final JSONObject message) {
    final String articleId = message.optString(Article.ARTICLE_T_ID);
    final String msgStr = message.toString();

    synchronized (SESSIONS) {
        for (final Map.Entry<Session, String> entry : SESSIONS.entrySet()) {
            final Session session = entry.getKey();
            final String articleIds = entry.getValue();

            if (!StringUtils.contains(articleIds, articleId)) {
                continue;
            }

            if (session.isOpen()) {
                session.getAsyncRemote().sendText(msgStr);
            }
        }
    }
}

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From source file:org.b3log.symphony.processor.channel.ChatRoomChannel.java

/**
 * Called when the socket connection with the browser is established.
 *
 * @param session session// w w  w  .  ja v  a 2 s . c o m
 */
@OnOpen
public void onConnect(final Session session) {
    SESSIONS.add(session);

    synchronized (SESSIONS) {
        final Iterator<Session> i = SESSIONS.iterator();
        while (i.hasNext()) {
            final Session s = i.next();

            if (s.isOpen()) {
                final String msgStr = new JSONObject().put(Common.ONLINE_CHAT_CNT, SESSIONS.size())
                        .put(Common.TYPE, "online").toString();
                s.getAsyncRemote().sendText(msgStr);
            }
        }
    }
}

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From source file:org.b3log.symphony.processor.channel.ChatRoomChannel.java

/**
 * Notifies the specified chat message to browsers.
 *
 * @param message the specified message, for example      <pre>
 * {/* w  ww  . j  a  v a2 s.  c om*/
 *     "userName": "",
 *     "content": ""
 * }
 * </pre>
 */
public static void notifyChat(final JSONObject message) {
    message.put(Common.TYPE, "msg");
    final String msgStr = message.toString();

    synchronized (SESSIONS) {
        final Iterator<Session> i = SESSIONS.iterator();
        while (i.hasNext()) {
            final Session session = i.next();

            if (session.isOpen()) {
                session.getAsyncRemote().sendText(msgStr);
            }
        }
    }
}

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From source file:org.b3log.symphony.processor.channel.ChatRoomChannel.java

/**
 * Removes the specified session.//from   ww  w  .  ja v a2 s  . com
 *
 * @param session the specified session
 */
private void removeSession(final Session session) {
    SESSIONS.remove(session);

    synchronized (SESSIONS) {
        final Iterator<Session> i = SESSIONS.iterator();
        while (i.hasNext()) {
            final Session s = i.next();

            if (s.isOpen()) {
                final String msgStr = new JSONObject().put(Common.ONLINE_CHAT_CNT, SESSIONS.size())
                        .put(Common.TYPE, "online").toString();
                s.getAsyncRemote().sendText(msgStr);
            }
        }
    }
}

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From source file:org.b3log.symphony.processor.channel.TimelineChannel.java

/**
 * Notifies the specified comment message to browsers.
 *
 * @param message the specified message, for example      <pre>
 * {/*from  ww w  .j a  v  a2s . c o m*/
 *     "commentContent": ""
 * }
 * </pre>
 */
public static void notifyTimeline(final JSONObject message) {
    final String msgStr = message.toString();

    synchronized (SESSIONS) {
        for (final Session session : SESSIONS) {
            if (session.isOpen()) {
                session.getAsyncRemote().sendText(msgStr);
            }
        }
    }
}

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From source file:org.wso2.carbon.device.mgt.extensions.remote.session.endpoint.SubscriptionEndpoint.java

/**
 * Web socket onError use to handle  socket connection error
 *
 * @param session    - Registered  session.
 * @param throwable  - Web socket exception
 * @param deviceType - DeviceType/*from w  ww .  java  2 s . c  om*/
 * @param deviceId   - Device Identifier
 */
public void onError(Session session, Throwable throwable, @PathParam("deviceType") String deviceType,
        @PathParam("deviceId") String deviceId) {

    if (throwable instanceof IOException) {
        if (log.isDebugEnabled()) {
            log.error("Error occurred in session ID: " + session.getId() + " device type: " + deviceType
                    + "device id: " + deviceId + ", for request URI - " + session.getRequestURI() + ", "
                    + throwable.getMessage(), throwable);
        }
    } else {
        log.error("Error occurred in session ID: " + session.getId() + " device type: " + deviceType
                + " device " + "id: " + deviceId + ", for request URI - " + session.getRequestURI() + ", "
                + throwable.getMessage(), throwable);
    }
    try {
        ServiceHolder.getInstance().getRemoteSessionManagementService().endSession(session,
                "Remote session closed");
        if (session.isOpen()) {
            session.close(new CloseReason(CloseReason.CloseCodes.PROTOCOL_ERROR, "Unexpected Error Occurred"));
        }
    } catch (IOException ex) {
        if (log.isDebugEnabled()) {
            log.error("Failed to disconnect the client.", ex);
        }
    }
}

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From source file:org.wso2.carbon.device.mgt.extensions.remote.session.RemoteSessionManagementServiceImpl.java

/**
 * Closing the session and cleanup the resources
 *
 * @param session Web socket Remote Session
 *//*from www. j a  v  a  2 s.c  o  m*/
@Override
public void endSession(Session session, String closeReason) {

    RemoteSession remoteSession = RemoteSessionManagementDataHolder.getInstance().getSessionMap()
            .remove(session.getId());
    if (remoteSession != null) {
        //String operationId = remoteSession.getOperationId();
        String deviceKey = remoteSession.getTenantDomain() + "/" + remoteSession.getDeviceType() + "/"
                + remoteSession.getDeviceId();
        RemoteSession lastSession = RemoteSessionManagementDataHolder.getInstance()
                .getActiveDeviceClientSessionMap().get(deviceKey);
        if (lastSession != null && lastSession.getMySession().getId().equals(session.getId())) {
            RemoteSessionManagementDataHolder.getInstance().getActiveDeviceClientSessionMap().remove(deviceKey);
        }
        if (remoteSession.getPeerSession() != null) {
            Session peerSession = remoteSession.getPeerSession().getMySession();
            if (peerSession != null) {
                RemoteSessionManagementDataHolder.getInstance().getSessionMap().remove(peerSession.getId());
                if (lastSession != null && lastSession.getMySession().getId().equals(peerSession.getId())) {
                    RemoteSessionManagementDataHolder.getInstance().getActiveDeviceClientSessionMap()
                            .remove(deviceKey);
                }
                if (peerSession.isOpen()) {
                    try {
                        peerSession.close(new CloseReason(CloseReason.CloseCodes.GOING_AWAY, closeReason));
                    } catch (IOException ex) {
                        if (log.isDebugEnabled()) {
                            log.error("Failed to disconnect the client.", ex);
                        }
                    }
                }
            }
        }
    }
}

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