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package org.apache.qpid.server.queue;

import org.apache.qpid.pool.ReadWriteRunnable;
import org.apache.qpid.server.subscription.Subscription;
import org.apache.qpid.server.logging.actors.CurrentActor;
import org.apache.qpid.AMQException;
import org.apache.log4j.Logger;


class SubFlushRunner implements ReadWriteRunnable
{
    private static final Logger _logger = Logger.getLogger(SimpleAMQQueue.class);


    private final Subscription _sub;
    private final String _name;
    private static final long ITERATIONS = SimpleAMQQueue.MAX_ASYNC_DELIVERIES;

    public SubFlushRunner(Subscription sub)
    {
        _sub = sub;
        _name = "SubFlushRunner-"+_sub;
    }

    public void run()
    {

       
        Thread.currentThread().setName(_name);

        boolean complete = false;
        try
        {
            CurrentActor.set(_sub.getLogActor());
            complete = getQueue().flushSubscription(_sub, ITERATIONS);

        }
        catch (AMQException e)
        {
            _logger.error(e);
        }
        finally
        {
            CurrentActor.remove();
        }
        if (!complete && !_sub.isSuspended())
        {
            getQueue().execute(this);
        }


    }

    private SimpleAMQQueue getQueue()
    {
        return (SimpleAMQQueue) _sub.getQueue();
    }

    public boolean isRead()
    {
        return false;
    }

    public boolean isWrite()
    {
        return true;
    }
}