Examples of edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap$HashEntry

Package edu.emory.mathcs.backport.java.util.concurrent

Examples of edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap$HashEntry

edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap
ConcurrentHashMap list entry. Note that this is never exported out as a user-visible Map.Entry. Because the value field is volatile, not final, it is legal wrt the Java Memory Model for an unsynchronized reader to see null instead of initial value when read via a data race. Although a reordering leading to this is not likely to ever actually occur, the Segment.readValueUnderLock method is used as a backup in case a null (pre-initialized) value is ever seen in an unsynchronized access method.

        String clientId = info.getClientId();
        ConnectionContext context = new ConnectionContext();
        context.setConnection(this);
        context.setBroker(broker);
        context.setConnector(connector);
        context.setTransactions(new ConcurrentHashMap());
        context.setClientId(clientId);
        context.setUserName(info.getUserName());
        context.setConnectionId(info.getConnectionId());
        context.setWireFormatInfo(wireFormatInfo);
        context.incrementReference();

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                if (subs == null)
                {
                    synchronized (this)
                    {
                        if ((subs = topicSub.defaultSubscriptions) == null)
                            topicSub.defaultSubscriptions = subs = new ConcurrentHashMap();
                    }
                }
            }
            /* Subscribing with a selector - store all subscriptions under the selector key */
            else
            {
                if (topicSub.selectorSubscriptions == null)
                {
                    synchronized (this) 
                    {
                        if (topicSub.selectorSubscriptions == null)
                            topicSub.selectorSubscriptions = new ConcurrentHashMap();
                    }
                }
                subs = (Map) topicSub.selectorSubscriptions.get(selector);
                if (subs == null)
                {
                    synchronized (this) 
                    {
                        if ((subs = (Map) topicSub.selectorSubscriptions.get(selector)) == null)
                            topicSub.selectorSubscriptions.put(selector, subs = new ConcurrentHashMap());
                    }
                }
            }

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            //initialize the httpSessionToFlexSessionMap
            synchronized(HttpFlexSession.mapLock)
            {
                if(servletConfig.getServletContext().getAttribute(HttpFlexSession.SESSION_MAP)==null)
                    servletConfig.getServletContext().setAttribute(HttpFlexSession.SESSION_MAP, new ConcurrentHashMap());
            }
                            
            broker.start();


            if (Log.isDebug())

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        catch(Exception e)
        {
            if (Log.isDebug())
                Log.getLogger(FLEX_SESSION_LOG_CATEGORY).debug("Unable to get HttpSession to FlexSession map for " 
                        + session.getId() + " " + e.toString());
            return new ConcurrentHashMap();


        }
        
    }

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     * has a corresponding MBean control for management; otherwise <code>false</code>.
     */
    public JMSAdapter(boolean enableManagement)
    {
        super(enableManagement);    
        consumerToClientId = new ConcurrentHashMap();
        messageClients = new ConcurrentHashMap();
        topicProducers = new LinkedList();
        topicConsumers = new ConcurrentHashMap();
        queueProducers = new LinkedList();
        queueConsumers = new ConcurrentHashMap();
        settings = new JMSSettings();
    }

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        if (isStarted())
            return;
        
        super.start();
        
        currentWaitedRequests = new ConcurrentHashMap();
    }

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    /** @exclude */
    public MessageBroker(boolean enableManagement, String mbid, ClassLoader loader)
    {
        super(enableManagement);
        classLoader = loader;
        attributes = new ConcurrentHashMap();
        destinationToService = new HashMap();
        endpoints = new LinkedHashMap();
        services = new LinkedHashMap();
        servers = new LinkedHashMap();
        factories = new HashMap();

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        super.start();
        
        if (idleTimeoutMinutes > 0)
            pushNotifierTimeoutManager = new TimeoutManager();
        
        currentStreamingRequests = new ConcurrentHashMap();
    }

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