Example usage for org.apache.wicket.util.collections ConcurrentHashSet isEmpty

Introduction

In this page you can find the example usage for org.apache.wicket.util.collections ConcurrentHashSet isEmpty.

Prototype

@Override
public boolean isEmpty() 

Source Link

Usage

From source file:org.efaps.ui.wicket.ConnectionRegistry.java

License:Apache License

/**
 * @param _login        login of the user to be removed for the registry
 * @param _sessionID    id to be removed
 * @param _application  Application that contains the mapping
 *//*from   w  w  w . j  ava2s .com*/
protected void removeUser(final String _login, final String _sessionID, final Application _application) {
    if (_login != null) {
        ConnectionRegistry.LOG.debug("remove user: '{}', session: '{}'", _login, _sessionID);
        ConcurrentMap<String, ConcurrentHashSet<String>> user2session = _application
                .getMetaData(ConnectionRegistry.USER2SESSION);
        synchronized (ConnectionRegistry.USER2SESSION) {
            user2session = _application.getMetaData(ConnectionRegistry.USER2SESSION);
            if (user2session != null) {
                final ConcurrentHashSet<String> sessions = user2session.get(_login);
                sessions.remove(_sessionID);
                if (sessions.isEmpty()) {
                    user2session.remove(_login);
                }
            }
        }
        synchronized (ConnectionRegistry.KEEPALIVE) {
            final ConcurrentMap<String, Long> keepalive = _application
                    .getMetaData(ConnectionRegistry.KEEPALIVE);
            if (keepalive != null) {
                keepalive.remove(_sessionID);
            }
        }
        ConnectionRegistry.LOG.debug("Removed User '{}' for Session: {}", _login, _sessionID);
        registerLogout4History(_login, _sessionID);
    }
}

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From source file:org.efaps.ui.wicket.ConnectionRegistry.java

License:Apache License

/**
 * @param _login login of the user the session is wanted for
 * @return Connections for the user, empty list if not found
 *//*from  w  w w.  jav  a 2 s .c o m*/
public List<IWebSocketConnection> getConnections4User(final String _login) {
    final List<IWebSocketConnection> ret = new ArrayList<>();
    final ConcurrentMap<String, ConcurrentHashSet<String>> user2session = Session.get().getApplication()
            .getMetaData(ConnectionRegistry.USER2SESSION);
    final ConcurrentMap<String, IKey> sessionId2pageId = Session.get().getApplication()
            .getMetaData(ConnectionRegistry.SESSION2KEY);
    final ConcurrentHashSet<String> sessionIds = user2session.get(_login);

    if (sessionIds != null && !sessionIds.isEmpty()) {
        final Iterator<String> iter = sessionIds.iterator();
        while (iter.hasNext()) {
            final String sessionId = iter.next();
            final IKey key = sessionId2pageId.get(sessionId);
            if (key != null) {
                final IWebSocketConnectionRegistry registry = WebSocketSettings.Holder
                        .get(EFapsApplication.get()).getConnectionRegistry();
                final IWebSocketConnection conn = registry.getConnection(EFapsApplication.get(), sessionId,
                        key);
                if (conn != null) {
                    ret.add(conn);
                }
            }
        }
    }
    return ret;
}

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