com.alibaba.otter.canal.store.helper.CanalEventUtils Java Examples

The following examples show how to use com.alibaba.otter.canal.store.helper.CanalEventUtils. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: MetaLogPositionManager.java    From canal-1.1.3 with Apache License 2.0 6 votes vote down vote up 
@Override
public LogPosition getLatestIndexBy(String destination) {
    List<ClientIdentity> clientIdentities = metaManager.listAllSubscribeInfo(destination);
    LogPosition result = null;
    if (!CollectionUtils.isEmpty(clientIdentities)) {
        // 尝试找到一个最小的logPosition
        for (ClientIdentity clientIdentity : clientIdentities) {
            LogPosition position = (LogPosition) metaManager.getCursor(clientIdentity);
            if (position == null) {
                continue;
            }

            if (result == null) {
                result = position;
            } else {
                result = CanalEventUtils.min(result, position);
            }
        }
    }

    return result;
}
Example #2
Source File: GatewayMetaManager.java    From DataLink with Apache License 2.0 6 votes vote down vote up 
/**
 * 需要加同步锁，保证在获取最小Position的时候，metaManager是不可变的
 *
 * @throws CanalMetaManagerException
 */
@Override
public synchronized Position getCursor(ClientIdentity clientIdentity) throws CanalMetaManagerException {
    // 入参clientIdentity没有什么作用，因为该方法需要返回所有"Sub Meta Manager"中最小的Position
    List<ClientIdentity> clientIdentities = listAllSubscribeInfo("");
    LogPosition result = null;
    if (!CollectionUtils.isEmpty(clientIdentities)) {
        // 尝试找到一个最小的logPosition
        for (ClientIdentity item : clientIdentities) {
            LogPosition position = (LogPosition) attachedMetaManagers.get(item.getDestination()).getCursor(item);
            if (position == null) {
                continue;
            }

            if (result == null) {
                result = position;
            } else {
                result = CanalEventUtils.min(result, position);
            }
        }
    }

    return result;
}
Example #3
Source File: MetaLogPositionManager.java    From canal with Apache License 2.0 6 votes vote down vote up 
@Override
public LogPosition getLatestIndexBy(String destination) {
    List<ClientIdentity> clientIdentities = metaManager.listAllSubscribeInfo(destination);
    LogPosition result = null;
    if (!CollectionUtils.isEmpty(clientIdentities)) {
        // 尝试找到一个最小的logPosition
        for (ClientIdentity clientIdentity : clientIdentities) {
            LogPosition position = (LogPosition) metaManager.getCursor(clientIdentity);
            if (position == null) {
                continue;
            }

            if (result == null) {
                result = position;
            } else {
                result = CanalEventUtils.min(result, position);
            }
        }
    }

    return result;
}
Example #4
Source File: MemoryEventStoreMemBatchTest.java    From canal-1.1.3 with Apache License 2.0 5 votes vote down vote up 
@Test
public void testFullPutBatchGet() {
    int bufferSize = 16;
    MemoryEventStoreWithBuffer eventStore = new MemoryEventStoreWithBuffer();
    eventStore.setBufferSize(bufferSize);
    eventStore.setBatchMode(BatchMode.MEMSIZE);
    eventStore.start();

    for (int i = 0; i < bufferSize; i++) {
        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);
    System.out.println("first get size : " + entrys1.getEvents().size());

    Assert.assertTrue(entrys1.getEvents().size() == bufferSize);
    Assert.assertEquals(first, entrys1.getPositionRange().getStart());
    Assert.assertEquals(lastest, entrys1.getPositionRange().getEnd());

    Assert.assertEquals(first, CanalEventUtils.createPosition(entrys1.getEvents().get(0)));
    Assert.assertEquals(lastest, CanalEventUtils.createPosition(entrys1.getEvents().get(bufferSize - 1)));
    eventStore.stop();
}
Example #5
Source File: MemoryEventStorePutAndGetTest.java    From canal-1.1.3 with Apache License 2.0 5 votes vote down vote up 
@Test
public void testFullPutBatchGet() {
    int bufferSize = 16;
    MemoryEventStoreWithBuffer eventStore = new MemoryEventStoreWithBuffer();
    eventStore.setBufferSize(bufferSize);
    eventStore.start();

    for (int i = 0; i < bufferSize; i++) {
        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);
    System.out.println("first get size : " + entrys1.getEvents().size());

    Assert.assertTrue(entrys1.getEvents().size() == bufferSize);
    Assert.assertEquals(first, entrys1.getPositionRange().getStart());
    Assert.assertEquals(lastest, entrys1.getPositionRange().getEnd());

    Assert.assertEquals(first, CanalEventUtils.createPosition(entrys1.getEvents().get(0)));
    Assert.assertEquals(lastest, CanalEventUtils.createPosition(entrys1.getEvents().get(bufferSize - 1)));
    eventStore.stop();
}
Example #6
Source File: MemoryEventStoreMemBatchTest.java    From canal with Apache License 2.0 5 votes vote down vote up 
@Test
public void testFullPutBatchGet() {
    int bufferSize = 16;
    MemoryEventStoreWithBuffer eventStore = new MemoryEventStoreWithBuffer();
    eventStore.setBufferSize(bufferSize);
    eventStore.setBatchMode(BatchMode.MEMSIZE);
    eventStore.start();

    for (int i = 0; i < bufferSize; i++) {
        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);
    System.out.println("first get size : " + entrys1.getEvents().size());

    Assert.assertTrue(entrys1.getEvents().size() == bufferSize);
    Assert.assertEquals(first, entrys1.getPositionRange().getStart());
    Assert.assertEquals(lastest, entrys1.getPositionRange().getEnd());

    Assert.assertEquals(first, CanalEventUtils.createPosition(entrys1.getEvents().get(0)));
    Assert.assertEquals(lastest, CanalEventUtils.createPosition(entrys1.getEvents().get(bufferSize - 1)));
    eventStore.stop();
}
Example #7
Source File: MemoryEventStorePutAndGetTest.java    From canal with Apache License 2.0 5 votes vote down vote up 
@Test
public void testFullPutBatchGet() {
    int bufferSize = 16;
    MemoryEventStoreWithBuffer eventStore = new MemoryEventStoreWithBuffer();
    eventStore.setBufferSize(bufferSize);
    eventStore.start();

    for (int i = 0; i < bufferSize; i++) {
        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);
    System.out.println("first get size : " + entrys1.getEvents().size());

    Assert.assertTrue(entrys1.getEvents().size() == bufferSize);
    Assert.assertEquals(first, entrys1.getPositionRange().getStart());
    Assert.assertEquals(lastest, entrys1.getPositionRange().getEnd());

    Assert.assertEquals(first, CanalEventUtils.createPosition(entrys1.getEvents().get(0)));
    Assert.assertEquals(lastest, CanalEventUtils.createPosition(entrys1.getEvents().get(bufferSize - 1)));
    eventStore.stop();
}
Example #8
Source File: MemoryEventStoreWithBuffer.java    From canal-1.1.3 with Apache License 2.0 4 votes vote down vote up 
public void cleanUntil(Position position) throws CanalStoreException {
    final ReentrantLock lock = this.lock;
    lock.lock();
    try {
        long sequence = ackSequence.get();
        long maxSequence = getSequence.get();

        boolean hasMatch = false;
        long memsize = 0;
        // ack没有list，但有已存在的foreach，还是节省一下list的开销
        long localExecTime = 0L;
        int deltaRows = 0;
        for (long next = sequence + 1; next <= maxSequence; next++) {
            Event event = entries[getIndex(next)];
            if (localExecTime == 0 && event.getExecuteTime() > 0) {
                localExecTime = event.getExecuteTime();
            }
            deltaRows += event.getRowsCount();
            memsize += calculateSize(event);
            boolean match = CanalEventUtils.checkPosition(event, (LogPosition) position);
            if (match) {// 找到对应的position，更新ack seq
                hasMatch = true;

                if (batchMode.isMemSize()) {
                    ackMemSize.addAndGet(memsize);
                    // 尝试清空buffer中的内存，将ack之前的内存全部释放掉
                    for (long index = sequence + 1; index < next; index++) {
                        entries[getIndex(index)] = null;// 设置为null
                    }
                }

                if (ackSequence.compareAndSet(sequence, next)) {// 避免并发ack
                    notFull.signal();
                    ackTableRows.addAndGet(deltaRows);
                    if (localExecTime > 0) {
                        ackExecTime.lazySet(localExecTime);
                    }
                    return;
                }
            }
        }
        if (!hasMatch) {// 找不到对应需要ack的position
            throw new CanalStoreException("no match ack position" + position.toString());
        }
    } finally {
        lock.unlock();
    }
}
Example #9
Source File: MemoryEventStoreWithBuffer.java    From canal with Apache License 2.0 4 votes vote down vote up 
public void cleanUntil(Position position, Long seqId) throws CanalStoreException {
    final ReentrantLock lock = this.lock;
    lock.lock();
    try {
        long sequence = ackSequence.get();
        long maxSequence = getSequence.get();

        boolean hasMatch = false;
        long memsize = 0;
        // ack没有list，但有已存在的foreach，还是节省一下list的开销
        long localExecTime = 0L;
        int deltaRows = 0;
        if (seqId > 0) {
            maxSequence = seqId;
        }
        for (long next = sequence + 1; next <= maxSequence; next++) {
            Event event = entries[getIndex(next)];
            if (localExecTime == 0 && event.getExecuteTime() > 0) {
                localExecTime = event.getExecuteTime();
            }
            deltaRows += event.getRowsCount();
            memsize += calculateSize(event);
            if ((seqId < 0 || next == seqId) && CanalEventUtils.checkPosition(event, (LogPosition) position)) {
                // 找到对应的position，更新ack seq
                hasMatch = true;

                if (batchMode.isMemSize()) {
                    ackMemSize.addAndGet(memsize);
                    // 尝试清空buffer中的内存，将ack之前的内存全部释放掉
                    for (long index = sequence + 1; index < next; index++) {
                        entries[getIndex(index)] = null;// 设置为null
                    }

                    // 考虑getFirstPosition/getLastPosition会获取最后一次ack的position信息
                    // ack清理的时候只处理entry=null，释放内存
                    Event lastEvent = entries[getIndex(next)];
                    lastEvent.setEntry(null);
                    lastEvent.setRawEntry(null);
                }

                if (ackSequence.compareAndSet(sequence, next)) {// 避免并发ack
                    notFull.signal();
                    ackTableRows.addAndGet(deltaRows);
                    if (localExecTime > 0) {
                        ackExecTime.lazySet(localExecTime);
                    }
                    return;
                }
            }
        }
        if (!hasMatch) {// 找不到对应需要ack的position
            throw new CanalStoreException("no match ack position" + position.toString());
        }
    } finally {
        lock.unlock();
    }
}