Examples with MemoryManager com.sun.messaging.jmq.jmsserver.memory.MemoryManager used on opensource projects

Example 1 with MemoryManager

use of com.sun.messaging.jmq.jmsserver.memory.MemoryManager in project openmq by eclipse-ee4j.

the class Destination method purgeDestination.

public void purgeDestination(boolean noerrnotfound) throws BrokerException {
    if (!loaded) {
        load(noerrnotfound);
    }
    try {
        MemoryManager mm = Globals.getMemManager();
        int maxpurge = destMessages.size();
        long removedCount = 0L;
        long indeliveryCount = 0L;
        boolean do1 = false;
        boolean oomed = false;
        List<SysMessageID> list = null;
        int count = 0;
        while (maxpurge > 0 && count < maxpurge) {
            do1 = false;
            if (oomed) {
                do1 = true;
                oomed = false;
            } else if (mm != null && mm.getCurrentLevel() > 0) {
                do1 = true;
            }
            if (!do1) {
                try {
                    list = new ArrayList<>(destMessages.getAllKeys());
                    count = maxpurge;
                } catch (OutOfMemoryError oom) {
                    oomed = true;
                    continue;
                }
            } else {
                list = destMessages.getFirstKeys(1);
            }
            if (list.isEmpty()) {
                break;
            }
            count += list.size();
            RemoveMessageReturnInfo ret = null;
            SysMessageID sysid = null;
            Iterator<SysMessageID> itr = list.iterator();
            while (itr.hasNext()) {
                sysid = itr.next();
                ret = _removeMessage(sysid, RemoveReason.PURGED, null, null, true);
                if (ret.removed) {
                    removedCount++;
                } else if (ret.indelivery) {
                    indeliveryCount++;
                }
            }
        }
        // while maxpurge
        logger.log(logger.INFO, br.getKString(br.I_NUM_MSGS_PURGED_FROM_DEST, removedCount, uid.getLocalizedName()));
        if (indeliveryCount > 0) {
            logger.log(logger.INFO, br.getKString(br.I_NUM_MSGS_INDELIVERY_NOT_PURGED_FROM_DEST, indeliveryCount, uid.getLocalizedName()));
        }
        Agent agent = Globals.getAgent();
        if (agent != null) {
            agent.notifyDestinationPurge(this);
        }
    } catch (Exception ex) {
        if (BrokerStateHandler.isShuttingDown()) {
            logger.log(Logger.INFO, BrokerResources.E_PURGE_DST_FAILED, getName(), ex);
        } else {
            logger.logStack(Logger.WARNING, BrokerResources.E_PURGE_DST_FAILED, getName(), ex);
        }
        if (ex instanceof BrokerException) {
            throw (BrokerException) ex;
        }
        throw new BrokerException(br.getKString(BrokerResources.E_PURGE_DST_FAILED, getName()), ex);
    }
}