Package org.apache.activemq.broker.region

Examples of org.apache.activemq.broker.region.Queue.browse()

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        // ensure repeated browse does now blow mem

        final Queue underTest = (Queue) ((RegionBroker)broker.getRegionBroker()).getQueueRegion().getDestinationMap().get(bigQueue);

        // do twice to attempt to pull in 2*maxBrowsePageSize which uses up the system memory limit
        underTest.browse();
        underTest.browse();
        Runtime.getRuntime().gc();
        long free = Runtime.getRuntime().freeMemory()/1024;
        LOG.info("free at start of check: " + free);
        // check for memory growth
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        final Queue underTest = (Queue) ((RegionBroker)broker.getRegionBroker()).getQueueRegion().getDestinationMap().get(bigQueue);

        // do twice to attempt to pull in 2*maxBrowsePageSize which uses up the system memory limit
        underTest.browse();
        underTest.browse();
        Runtime.getRuntime().gc();
        long free = Runtime.getRuntime().freeMemory()/1024;
        LOG.info("free at start of check: " + free);
        // check for memory growth
        for (int i=0; i<10; i++) {
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        long free = Runtime.getRuntime().freeMemory()/1024;
        LOG.info("free at start of check: " + free);
        // check for memory growth
        for (int i=0; i<10; i++) {
            LOG.info("free: " + Runtime.getRuntime().freeMemory()/1024);
            underTest.browse();
            Runtime.getRuntime().gc();
            Runtime.getRuntime().gc();
            assertTrue("No growth: " + Runtime.getRuntime().freeMemory()/1024, Runtime.getRuntime().freeMemory()/1024 >= (free - (free * 0.1)));
        }
    }
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        // ensure repeated browse does now blow mem

        final Queue underTest = (Queue) ((RegionBroker)broker.getRegionBroker()).getQueueRegion().getDestinationMap().get(bigQueue);

        // do twice to attempt to pull in 2*maxBrowsePageSize which uses up the system memory limit
        Message[] browsed = underTest.browse();
        LOG.info("Browsed: " + browsed.length);
        assertEquals("maxBrowsePageSize", maxBrowsePageSize, browsed.length);
        browsed = underTest.browse();
        LOG.info("Browsed: " + browsed.length);
        assertEquals("maxBrowsePageSize", maxBrowsePageSize, browsed.length);
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        // do twice to attempt to pull in 2*maxBrowsePageSize which uses up the system memory limit
        Message[] browsed = underTest.browse();
        LOG.info("Browsed: " + browsed.length);
        assertEquals("maxBrowsePageSize", maxBrowsePageSize, browsed.length);
        browsed = underTest.browse();
        LOG.info("Browsed: " + browsed.length);
        assertEquals("maxBrowsePageSize", maxBrowsePageSize, browsed.length);
        Runtime.getRuntime().gc();
        long free = Runtime.getRuntime().freeMemory()/1024;
        LOG.info("free at start of check: " + free);
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        long free = Runtime.getRuntime().freeMemory()/1024;
        LOG.info("free at start of check: " + free);
        // check for memory growth
        for (int i=0; i<10; i++) {
            LOG.info("free: " + Runtime.getRuntime().freeMemory()/1024);
            browsed = underTest.browse();
            LOG.info("Browsed: " + browsed.length);
            assertEquals("maxBrowsePageSize", maxBrowsePageSize, browsed.length);
            Runtime.getRuntime().gc();
            Runtime.getRuntime().gc();
            assertTrue("No growth: " + Runtime.getRuntime().freeMemory()/1024 + " >= " + (free - (free * 0.2)), Runtime.getRuntime().freeMemory()/1024 >= (free - (free * 0.2)));
 
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