Examples with Partition cz.o2.proxima.storage.Partition used on opensource projects

Example 1 with Partition

use of cz.o2.proxima.storage.Partition in project proxima-platform by O2-Czech-Republic.

the class HBaseLogReaderTest method testObserveLast.

@Test(timeout = 30000)
public void testObserveLast() throws InterruptedException, IOException {
    long now = 1500000000000L;
    write("secon", "dummy", "secon", now);
    write("second", "dummy", "second", now);
    write("third", "dummy", "third", now);
    List<Partition> partitions = reader.getPartitions();
    List<String> keys = new ArrayList<>();
    CountDownLatch latch = new CountDownLatch(1);
    reader.observe(partitions.subList(2, 3), Lists.newArrayList(attr), new BatchLogObserver() {

        @Override
        public boolean onNext(StreamElement element) {
            assertEquals(now, element.getStamp());
            keys.add(element.getKey());
            return true;
        }

        @Override
        public void onCompleted() {
            latch.countDown();
        }
    });
    latch.await();
    assertEquals(Lists.newArrayList("second", "third"), keys);
}

Example 2 with Partition

use of cz.o2.proxima.storage.Partition in project proxima-platform by O2-Czech-Republic.

the class HBaseLogReaderTest method testObserve.

@Test(timeout = 30000)
public void testObserve() throws InterruptedException, IOException {
    long now = 1500000000000L;
    write("a", "dummy", "a", now);
    write("firs", "wildcard.1", "firs", now);
    write("fir", "dummy", "fir", now);
    write("first", "dummy", "first", now);
    List<Partition> partitions = reader.getPartitions();
    List<String> keys = new ArrayList<>();
    CountDownLatch latch = new CountDownLatch(1);
    reader.observe(partitions.subList(0, 1), Lists.newArrayList(attr), new BatchLogObserver() {

        @Override
        public boolean onNext(StreamElement element) {
            assertEquals(now, element.getStamp());
            keys.add(element.getKey());
            return true;
        }

        @Override
        public void onCompleted() {
            latch.countDown();
        }
    });
    latch.await();
    assertEquals(Arrays.asList("a", "fir"), keys);
}

Example 3 with Partition

use of cz.o2.proxima.storage.Partition in project proxima-platform by O2-Czech-Republic.

the class HBaseLogReaderTest method testObserveMultiple.

@Test(timeout = 30000)
public void testObserveMultiple() throws IOException, InterruptedException {
    long now = 1500000000000L;
    write("a", "dummy", "a", now);
    write("firs", "wildcard.1", "firs", now);
    write("fir", "dummy", "fir", now);
    write("first", "dummy", "first", now);
    List<Partition> partitions = reader.getPartitions();
    List<String> keys = new ArrayList<>();
    CountDownLatch latch = new CountDownLatch(1);
    assertEquals(3, partitions.size());
    reader.observe(partitions.subList(0, 1), Lists.newArrayList(attr, wildcard), new BatchLogObserver() {

        @Override
        public void onCompleted() {
            latch.countDown();
        }

        @Override
        public boolean onNext(StreamElement element) {
            assertEquals(now, element.getStamp());
            keys.add(element.getKey());
            return true;
        }

        @Override
        public boolean onError(Throwable error) {
            throw new RuntimeException(error);
        }
    });
    latch.await();
    assertEquals(Lists.newArrayList("a", "fir", "firs"), keys);
}

Example 4 with Partition

use of cz.o2.proxima.storage.Partition in project proxima-platform by O2-Czech-Republic.

the class HadoopStorageTest method testObserveCancel.

@Test(timeout = 5000L)
public void testObserveCancel() throws InterruptedException {
    Map<String, Object> cfg = cfg(HadoopDataAccessor.HADOOP_ROLL_INTERVAL, -1);
    HadoopDataAccessor accessor = new HadoopDataAccessor(TestUtils.createTestFamily(entity, uri, cfg));
    CountDownLatch latch = new CountDownLatch(1);
    writeOneElement(accessor, (success, error) -> {
        assertTrue(success);
        assertNull(error);
        latch.countDown();
    }).updateWatermark(Long.MAX_VALUE);
    latch.await();
    BatchLogReader reader = accessor.getBatchLogReader(direct.getContext()).orElse(null);
    assertNotNull(reader);
    List<Partition> partitions = reader.getPartitions();
    assertEquals(1, partitions.size());
    CountDownLatch cancelledLatch = new CountDownLatch(1);
    AtomicReference<ObserveHandle> handle = new AtomicReference<>();
    handle.set(reader.observe(partitions, Collections.singletonList(attribute), new BatchLogObserver() {

        @Override
        public boolean onNext(StreamElement element) {
            handle.get().close();
            return true;
        }

        @Override
        public void onCompleted() {
            fail("onCompleted should not have been called");
        }

        @Override
        public void onCancelled() {
            cancelledLatch.countDown();
        }

        @Override
        public boolean onError(Throwable error) {
            onCancelled();
            return true;
        }
    }));
    cancelledLatch.await();
}

Example 5 with Partition

use of cz.o2.proxima.storage.Partition in project proxima-platform by O2-Czech-Republic.

the class HadoopStorageTest method testWriteElementNotYetFlushed.

@Test(timeout = 5_000L)
public void testWriteElementNotYetFlushed() throws InterruptedException {
    Map<String, Object> cfg = cfg(HadoopDataAccessor.HADOOP_ROLL_INTERVAL, 1000);
    HadoopDataAccessor accessor = new HadoopDataAccessor(TestUtils.createTestFamily(entity, uri, cfg));
    CountDownLatch latch = new CountDownLatch(1);
    BulkAttributeWriter writer = writeOneElement(accessor, ((success, error) -> {
        if (error != null) {
            log.error("Failed to flush write", error);
        }
        assertTrue("Error in flush " + error, success);
        assertNull(error);
        latch.countDown();
    }));
    assertTrue(root.exists());
    List<File> files = listRecursively(root);
    assertEquals("Expected single file in " + files, 1, files.size());
    assertTrue(Iterables.getOnlyElement(files).getAbsolutePath().contains("_tmp"));
    BatchLogReader reader = accessor.getBatchLogReader(direct.getContext()).orElse(null);
    assertNotNull(reader);
    List<Partition> partitions = reader.getPartitions();
    assertTrue("Expected empty partitions, got " + partitions, partitions.isEmpty());
    // advance watermark to flush
    writer.updateWatermark(Long.MAX_VALUE);
    latch.await();
    partitions = reader.getPartitions();
    assertEquals(1, partitions.size());
    BlockingQueue<StreamElement> queue = new SynchronousQueue<>();
    reader.observe(partitions, Collections.singletonList(attribute), new BatchLogObserver() {

        @Override
        public boolean onNext(StreamElement element) {
            ExceptionUtils.unchecked(() -> queue.put(element));
            return true;
        }
    });
    StreamElement element = queue.take();
    assertNotNull(element);
}