Examples of org.apache.qpid.qmf2.agent.QmfAgentData

org.apache.qpid.qmf2.util.GetOpt
The Agent manages the data it represents by the QmfAgentData class - a derivative of the QmfData class.
The Agent is responsible for managing the values of the properties within the object, as well as servicing the object's method calls. Unlike the Console, the Agent has full control of the state of the object.
In most cases, for efficiency, it is expected that Agents would actually manage objects that are subclasses of QmfAgentData and maintain subclass specific properties as primitives, only actually explicitly setting the underlying Map properties via setValue() etc. when the object needs to be "serialised". This would most obviously be done by extending the mapEncode() method (noting that it's important to call QmfAgentData's mapEncode() first via super.mapEncode(); as this will set the state of the underlying QmfData).
This class provides a number of methods aren't in the QMF2 API per se, but they are used to manage the association between a managed object and any subscriptions that might be interested in it.
The diagram below shows the relationship between the Subscription and QmfAgentData.

In particular the QmfAgentData maintains references to active subscriptions to allow agents to asynchronously push data to subscribing Consoles immediately that data becomes available.
The update() method indicates that the object's state has changed and the publish() method immediately sends the new state to any subscription.
The original intention was to "auto update" by calling these from the setValue() method. Upon reflection this seems a bad idea, as in many cases there may be several properties that an Agent may wish to change which would lead to unnecessary calls to currentTimeMillis(), but also as theSubscription update is run via a TimerTask it is possible that an update indication could get sent part way through setting an object's overall state. Similarly calling the publish() method directly from setValue() would force an update indication on partial changes of state, which is generally not the desired behaviour. @author Fraser Adams

            {
                System.out.println("No broker QmfConsoleData returned");
                System.exit(1);
            }


            QmfConsoleData broker = brokers.get(0);
            QmfData arguments = new QmfData();
            arguments.setValue("type", "queue");


            for (int i = 0; i < 300; i++)
            {
                arguments.setValue("name", "test " + i);


                try
                {
                    broker.invokeMethod("create", arguments);
                }
                catch (QmfException e)
                { // This may be throw if we've already added the queues, we just catch and ignore for this test.
                    //System.out.println(e.getMessage());
                }

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                                }
                            }


                            if (_filter.isEmpty() || matches)
                            { // If there's no filter enabled or the filter matches the queue name we display statistics.
                                QmfConsoleData lastSample = stats.getData();
                                stats.setData(record);
    
                                float deltaTime = record.getUpdateTime() - lastSample.getUpdateTime();
                                if (deltaTime > 1000000000.0f)
                                {
                                    float deltaEnqueues = record.getLongValue("msgTotalEnqueues") -
                                                          lastSample.getLongValue("msgTotalEnqueues");
                                    float deltaDequeues = record.getLongValue("msgTotalDequeues") -
                                                          lastSample.getLongValue("msgTotalDequeues");
                                    long msgDepth = record.getLongValue("msgDepth");
                                    float enqueueRate = deltaEnqueues/(deltaTime/1000000000.0f);
                                    float dequeueRate = deltaDequeues/(deltaTime/1000000000.0f);


                                    System.out.printf("%-46s%10.2f%11d%13.2f%13.2f\n",

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    {
        readWhitelist();
        List<QmfConsoleData> subscriptions = _console.getObjects("org.apache.qpid.broker", "subscription");
        for (QmfConsoleData subscription : subscriptions)
        {
            QmfConsoleData queue = dereference(subscription.getRefValue("queueRef"));
            QmfConsoleData session = dereference(subscription.getRefValue("sessionRef"));
            QmfConsoleData connection = dereference(session.getRefValue("connectionRef"));
            
            String queueName = queue.getStringValue("name");
            String address = connection.getStringValue("address");
            String timestamp = new Date(subscription.getCreateTime()/1000000l).toString();
            validateQueue(queueName, address, timestamp);
        }
    }

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            for (QmfConsoleData binding : bindings)
            {
                ObjectId queueRef = binding.getRefValue("queueRef");
                if (queueRef.equals(queueId))
                { // We've found a binding that matches queue queueName so look up the associated exchange and validate.
                    QmfConsoleData exchange = dereference(binding.getRefValue("exchangeRef"));
                    String exchangeName = exchange.getStringValue("name");
                    validateQueue(queueName, exchangeName, binding, address, timestamp);
                }
            }
        }
    }

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                    ObjectId queueRef = binding.getRefValue("queueRef");


                    if (queueRef.equals(queueId))
                    {
                        ObjectId exchangeRef = binding.getRefValue("exchangeRef");
                        QmfConsoleData exchange = findById(exchanges, exchangeRef);


                        String exchangeName = "<unknown>";
                        if (exchange != null)
                        {
                            exchangeName = exchange.getStringValue("name");
                            if (exchangeName.equals(""))
                            {
                                exchangeName = "''";
                            }
                        }

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            _objects.clear();
        }
        else if (wi instanceof SubscriptionIndicationWorkItem)
        {
            SubscriptionIndicationWorkItem item = (SubscriptionIndicationWorkItem)wi;
            SubscribeIndication indication = item.getSubscribeIndication();
            String correlationId = indication.getConsoleHandle();
            if (correlationId.equals("queueStatsHandle"))
            { // If it is (and it should be!!) then it's our queue object Subscription
                List<QmfConsoleData> data = indication.getData();
                for (QmfConsoleData record : data)
                {
                    ObjectId id = record.getObjectId();
                    if (record.isDeleted())
                    { // If the object was deleted by the Agent we remove it from out Map

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    private void createQueueSubscription()
    {
        try
        {   // This QmfQuery simply does an ID query for objects with the className "queue"
            QmfQuery query = new QmfQuery(QmfQueryTarget.OBJECT, new SchemaClassId("queue"));
            SubscribeParams params = _console.createSubscription(_broker, query, "queueStatsHandle");
            _subscriptionId = params.getSubscriptionId();
            _subscriptionDuration = params.getLifetime() - 10; // Subtract 10 as we want to refresh before it times out
            _startTime = System.currentTimeMillis();
        }
        catch (QmfException qmfe)
        {
        }

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        {
            _objects.clear();
        }
        else if (wi instanceof SubscriptionIndicationWorkItem)
        {
            SubscriptionIndicationWorkItem item = (SubscriptionIndicationWorkItem)wi;
            SubscribeIndication indication = item.getSubscribeIndication();
            String correlationId = indication.getConsoleHandle();
            if (correlationId.equals("queueStatsHandle"))
            { // If it is (and it should be!!) then it's our queue object Subscription
                List<QmfConsoleData> data = indication.getData();
                for (QmfConsoleData record : data)

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        try
        {
            String host = "localhost";
            String connectionOptions = "{reconnect: true}";
            List<Pattern> filter = new ArrayList<Pattern>();
            GetOpt getopt = new GetOpt(args, "ha:f:", longOpts);
            List<String[]> optList = getopt.getOptList();


            for (String[] opt : optList)
            {
                if (opt[0].equals("-h") || opt[0].equals("--help"))
                {

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        String[] longOpts = {"help", "whitelist=", "sasl-mechanism="};
        try
        {
            String connectionOptions = "{reconnect: true}";
            String whitelist = "./whitelist.xml";
            GetOpt getopt = new GetOpt(args, "h", longOpts);
            List<String[]> optList = getopt.getOptList();
            String[] cargs = {};
            cargs = getopt.getEncArgs().toArray(cargs);
            for (String[] opt : optList)
            {
                if (opt[0].equals("-h") || opt[0].equals("--help"))
                {
                    System.out.println(_usage);

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org.apache.qpid.messaging.util.AddressParser

org.apache.qpid.qmf2.agent.Agent

org.apache.qpid.qmf2.agent.AgentExternal

org.apache.qpid.qmf2.agent.MethodCallParams

org.apache.qpid.qmf2.agent.MethodCallWorkItem

org.apache.qpid.qmf2.agent.QmfAgentData

org.apache.qpid.qmf2.agent.SubscriptionParams

org.apache.qpid.qmf2.common.Handle

org.apache.qpid.qmf2.common.NotifierWrapper

org.apache.qpid.qmf2.common.NullQmfEventListener

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