Package org.mule.routing

Examples of org.mule.routing.EventGroup$ArrivalOrderMessageComparator

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        setStartContext(true);
    }

    public void testConcurrentIteration() throws Exception
    {
        EventGroup eg = new EventGroup(UUID.getUUID());
        assertFalse(eg.iterator().hasNext());

        // add to events to start with
        eg.addEvent(getTestEvent("foo1"));
        eg.addEvent(getTestEvent("foo2"));
        assertTrue(eg.iterator().hasNext());

        // now add events while we iterate over the group
        Iterator i = eg.iterator();
        assertNotNull(i.next());
        eg.addEvent(getTestEvent("foo3"));
        assertNotNull(i.next());
        eg.addEvent(getTestEvent("foo4"));
        assertFalse(i.hasNext());

        // the added events should be in there though
        assertEquals(4, eg.size());
    }
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        assertEquals(4, eg.size());
    }

    public void testEquals()
    {
        EventGroup g1 = new EventGroup("foo");
        EventGroup g2 = new EventGroup("foo");
        EventGroup g3 = new EventGroup("bar");

        assertEquals(g1, g2);
        assertFalse(g1.equals(g3));

        MyEventGroup mg = new MyEventGroup("foo");
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    }

    public void testHashCode()
    {
        String uuid = UUID.getUUID();
        EventGroup g1 = new EventGroup(uuid);
        EventGroup g2 = new EventGroup(uuid);
        EventGroup g3 = new EventGroup(UUID.getUUID());

        assertEquals(g1.hashCode(), g2.hashCode());
        assertEquals(g1, g2);

        assertFalse(g1.hashCode() == g3.hashCode());
        assertFalse(g1.equals(g3));
        assertFalse(g3.equals(g1));

        // now test Set compatibility
        Set<EventGroup> s = new HashSet<EventGroup>();
        s.add(g1);
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    }

    public void testCompareTo() throws InterruptedException
    {
        String uuid = UUID.getUUID();
        EventGroup g1 = new EventGroup(uuid);
        EventGroup g2 = new EventGroup(uuid);
        EventGroup g3 = new EventGroup(UUID.getUUID());
       
        // test comparison against null
        try
        {
            g1.compareTo(null);
            fail("expected NullPointerException");
        }
        catch (NullPointerException npe)
        {
            // expected
        }

        assertEquals(0, g1.compareTo(g2));
        /*
         * guids are randomly generated, we cannot compare them with '<' '>'
         * we used to generate them this way: generator.generateTimeBasedUUID().toString()
         * but now we generate them as java.util.UUID.randomUUID().toString()
         */              
        assertTrue(g1.compareTo(g3) != 0);
        assertTrue(g3.compareTo(g1) != 0);
        assertTrue(g3.compareTo(g2) != 0);

        // when the groupId is not Comparable, the creation time is used as fallback
        g1 = new EventGroup(new Object());
        // sleep a mini bit to ensure that both event groups do not accidentially have the same
        // creation timestamp
        Thread.sleep(10);
        g2 = new EventGroup(new Object());
       
        // g1 is older (smaller) than g2
        assertTrue(g1.compareTo(g2) < 0);
        assertTrue(g2.compareTo(g1) > 0);
    }
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        assertTrue(g2.compareTo(g1) > 0);
    }

    public void testToArray() throws Exception
    {
        EventGroup eg = new EventGroup(UUID.getUUID());
        eg.addEvent(getTestEvent("foo1"));
        eg.addEvent(getTestEvent("foo2"));

        Object[] array1 = IteratorUtils.toArray(eg.iterator());
        MuleEvent[] array2 = eg.toArray();
        assertTrue(Arrays.equals(array1, array2));
    }
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        assertTrue(Arrays.equals(array1, array2));
    }

    public void testToString() throws Exception
    {
        EventGroup eg = new EventGroup(UUID.getUUID());
        String es = eg.toString();
        assertTrue(es.endsWith("events=0}"));

        MuleEvent e = getTestEvent("foo");
        eg.addEvent(e);
        es = eg.toString();
        assertTrue(es.indexOf("events=1") != -1);
        assertTrue(es.endsWith("[" + e.getMessage().getUniqueId() + "]}"));

        MuleEvent e2 = new DefaultMuleEvent(new DefaultMuleMessage("foo2", muleContext), e);
        eg.addEvent(e2);
        es = eg.toString();
        assertTrue(es.indexOf("events=2") != -1);
        assertTrue(es.endsWith(e.getMessage().getUniqueId() + ", " + e2.getMessage().getUniqueId() + "]}"));
    }
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     * Creates a new EventGroup that will expect the number of events as returned by
     * {@link MuleMessage#getCorrelationGroupSize()}.
     */
    public EventGroup createEventGroup(MuleEvent event, Object groupId)
    {
        return new EventGroup(groupId, event.getMessage().getCorrelationGroupSize());
    }
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                                                                     RoutingNotification.MISSED_AGGREGATION_GROUP_EVENT));
                return null;
            }

            // check for an existing group first
            EventGroup group = this.getEventGroup(groupId);

            // does the group exist?
            if (group == null)
            {
                // ..apparently not, so create a new one & add it
                group = this.addEventGroup(callback.createEventGroup(event, groupId));
            }

            // ensure that only one thread at a time evaluates this EventGroup
            synchronized (groupsLock)
            {
                // make sure no other thread removed the group in the meantime
                if (group != this.getEventGroup(groupId))
                {
                    // if that is the (rare) case, spin
                    lookupMiss = true;
                    continue;
                }

                if (logger.isDebugEnabled())
                {
                    logger.debug("Adding event to aggregator group: " + groupId);
                }

                // add the incoming event to the group
                group.addEvent(event);

                // check to see if the event group is ready to be aggregated
                if (callback.shouldAggregateEvents(group))
                {
                    // create the response event
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        return (EventGroup) eventGroups.get(groupId);
    }

    protected EventGroup addEventGroup(EventGroup group)
    {
        EventGroup previous = (EventGroup) eventGroups.putIfAbsent(group.getGroupId(), group);
        // a parallel thread might have removed the EventGroup already,
        // therefore we need to validate our current reference
        return (previous != null ? previous : group);
    }
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                }

                List<EventGroup> expired = new ArrayList<EventGroup>(1);
                for (Object o : eventGroups.values())
                {
                    EventGroup group = (EventGroup) o;
                    if ((group.getCreated() + getTimeout() * MILLI_TO_NANO_MULTIPLIER) < System.nanoTime())
                    {
                        expired.add(group);
                    }
                }
                if (expired.size() > 0)
                {
                    for (Object anExpired : expired)
                    {
                        EventGroup group = (EventGroup) anExpired;
                        try
                        {
                            handleGroupExpiry(group);
                        }
                        catch (MessagingException e)
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Related Classes of org.mule.routing.EventGroup$ArrivalOrderMessageComparator

  • org.mule.api.MuleEvent
  • org.mule.api.MuleMessage
  • org.mule.api.MuleMessageCollection
  • org.mule.api.MuleSession
  • org.mule.DefaultMessageCollection
  • org.mule.DefaultMuleEvent
  • org.mule.routing.correlation.CollectionCorrelatorCallback
  • org.mule.routing.correlation.EventCorrelator
  • org.mule.routing.correlation.EventCorrelator$ExpiringGroupMonitoringThread
  • org.mule.routing.EventGroupTestCase
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