Package com.alibaba.otter.canal.protocol.position

Examples of com.alibaba.otter.canal.protocol.position.Position

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    protected boolean          onFull           = false;
    protected boolean          onSchedule       = false;
    protected String           scavengeSchedule = null;

    public void scavenge() {
        Position position = getLatestAckPosition(destination);
        cleanUntil(position);
    }
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            this.freq = freq;
            this.batchSize = batchSize;
        }

        public void run() {
            Position first = eventStore.getFirstPosition();
            while (first == null) {
                try {
                    Thread.sleep(RandomUtils.nextInt(freq));
                } catch (InterruptedException e) {
                    latch.countDown();
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        eventStore.start();

        boolean result = eventStore.tryPut(buildEvent("1", 1L, 1L));
        Assert.assertTrue(result);

        Position position = eventStore.getFirstPosition();
        Events<Event> entrys = eventStore.tryGet(position, 1);
        Assert.assertTrue(entrys.getEvents().size() == 1);
        Assert.assertEquals(position, entrys.getPositionRange().getStart());
        Assert.assertEquals(position, entrys.getPositionRange().getEnd());
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            boolean result = eventStore.tryPut(buildEvent("1", 1L, 1L + i));
            sleep(100L);
            Assert.assertTrue(result);
        }

        Position first = eventStore.getFirstPosition();
        Position lastest = eventStore.getLatestPosition();
        Assert.assertEquals(first, CanalEventUtils.createPosition(buildEvent("1", 1L, 1L)));
        Assert.assertEquals(lastest, CanalEventUtils.createPosition(buildEvent("1", 1L, 1L + bufferSize - 1)));

        System.out.println("start get");
        Events<Event> entrys1 = eventStore.tryGet(first, bufferSize);
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        for (int i = 0; i < batchSize; i++) {
            boolean result = eventStore.tryPut(buildEvent("1", 1L, 1L));
            Assert.assertTrue(result);
        }

        final Position position = eventStore.getFirstPosition();
        try {
            Events<Event> entrys = eventStore.get(position, batchSize);
            Assert.assertTrue(entrys.getEvents().size() == batchSize);
            Assert.assertEquals(position, entrys.getPositionRange().getStart());
            Assert.assertEquals(position, entrys.getPositionRange().getEnd());
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        eventStore.start();

        boolean result = eventStore.tryPut(buildEvent("1", 1L, 1L));
        Assert.assertTrue(result);

        Position position = eventStore.getFirstPosition();
        Events<Event> entrys = eventStore.tryGet(position, 1);
        Assert.assertTrue(entrys.getEvents().size() == 1);
        Assert.assertEquals(position, entrys.getPositionRange().getStart());
        Assert.assertEquals(position, entrys.getPositionRange().getEnd());
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            boolean result = eventStore.tryPut(buildEvent("1", 1L, 1L + i));
            sleep(100L);
            Assert.assertTrue(result);
        }

        Position first = eventStore.getFirstPosition();
        Position lastest = eventStore.getLatestPosition();
        Assert.assertEquals(first, CanalEventUtils.createPosition(buildEvent("1", 1L, 1L)));
        Assert.assertEquals(lastest, CanalEventUtils.createPosition(buildEvent("1", 1L, 1L + bufferSize - 1)));

        System.out.println("start get");
        Events<Event> entrys1 = eventStore.tryGet(first, bufferSize);
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        for (int i = 0; i < batchSize; i++) {
            boolean result = eventStore.tryPut(buildEvent("1", 1L, 1L));
            Assert.assertTrue(result);
        }

        final Position position = eventStore.getFirstPosition();
        try {
            Events<Event> entrys = eventStore.get(position, batchSize);
            Assert.assertTrue(entrys.getEvents().size() == batchSize);
            Assert.assertEquals(position, entrys.getPositionRange().getStart());
            Assert.assertEquals(position, entrys.getPositionRange().getEnd());
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            sleep(100L);
            Assert.assertTrue(result);
        }

        sleep(50L);
        Position first = eventStore.getFirstPosition();
        Position lastest = eventStore.getLatestPosition();
        Assert.assertEquals(first, CanalEventUtils.createPosition(buildEvent("1", 1L, 1L)));
        Assert.assertEquals(lastest, CanalEventUtils.createPosition(buildEvent("1", 1L, 1L + bufferSize / 2 - 1)));

        System.out.println("start get");
        Events<Event> entrys1 = eventStore.tryGet(first, bufferSize);
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            canalInstance.getMetaManager().start();
        }

        canalInstance.getMetaManager().subscribe(clientIdentity); // 执行一下meta订阅

        Position position = canalInstance.getMetaManager().getCursor(clientIdentity);
        if (position == null) {
            position = canalInstance.getEventStore().getFirstPosition();// 获取一下store中的第一条
            if (position != null) {
                canalInstance.getMetaManager().updateCursor(clientIdentity, position); // 更新一下cursor
            }
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Related Classes of com.alibaba.otter.canal.protocol.position.Position

  • com.alibaba.otter.canal.meta.AbstractMetaManagerTest
  • com.alibaba.otter.canal.meta.FileMixedMetaManager
  • com.alibaba.otter.canal.meta.FileMixedMetaManagerTest
  • com.alibaba.otter.canal.meta.MixedMetaManager
  • com.alibaba.otter.canal.meta.MixedMetaManagerTest
  • com.alibaba.otter.canal.meta.PeriodMixedMetaManager
  • com.alibaba.otter.canal.meta.PeriodMixedMetaManagerTest
  • com.alibaba.otter.canal.server.embeded.CanalServerWithEmbeded
  • com.alibaba.otter.canal.store.AbstractCanalStoreScavenge
  • com.alibaba.otter.cancel.store.memory.buffer.MemoryEventStoreMemBatchTest
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