Examples with ReadOnlyCursor org.apache.bookkeeper.mledger.ReadOnlyCursor used on opensource projects

Example 11 with ReadOnlyCursor

use of org.apache.bookkeeper.mledger.ReadOnlyCursor in project pulsar by yahoo.

the class ReadOnlyCursorTest method simple.

@Test
void simple() throws Exception {
    ManagedLedger ledger = factory.open("simple", new ManagedLedgerConfig().setRetentionTime(1, TimeUnit.HOURS));
    int N = 10;
    for (int i = 0; i < N; i++) {
        ledger.addEntry(("entry-" + i).getBytes());
    }
    ReadOnlyCursor cursor = factory.openReadOnlyCursor("simple", PositionImpl.EARLIEST, new ManagedLedgerConfig());
    assertEquals(cursor.getNumberOfEntries(), N);
    assertTrue(cursor.hasMoreEntries());
    List<Entry> entries = cursor.readEntries(N);
    assertEquals(entries.size(), N);
    assertEquals(cursor.getNumberOfEntries(), 0);
    assertFalse(cursor.hasMoreEntries());
    entries.forEach(Entry::release);
    cursor.close();
    // Ensure we can still write to ledger
    for (int i = 0; i < N; i++) {
        ledger.addEntry(("entry-" + i).getBytes());
    }
    // Open a new cursor
    cursor = factory.openReadOnlyCursor("simple", PositionImpl.EARLIEST, new ManagedLedgerConfig());
    assertEquals(cursor.getNumberOfEntries(), 2 * N);
    assertTrue(cursor.hasMoreEntries());
    entries = cursor.readEntries(N);
    assertEquals(entries.size(), N);
    assertEquals(cursor.getNumberOfEntries(), N);
    assertTrue(cursor.hasMoreEntries());
    entries.forEach(Entry::release);
    entries = cursor.readEntries(N);
    assertEquals(entries.size(), N);
    assertEquals(cursor.getNumberOfEntries(), 0);
    assertFalse(cursor.hasMoreEntries());
    entries.forEach(Entry::release);
    cursor.close();
}

Example 12 with ReadOnlyCursor

use of org.apache.bookkeeper.mledger.ReadOnlyCursor in project pulsar by yahoo.

the class TestPulsarConnector method setup.

@BeforeMethod
public void setup() throws Exception {
    this.pulsarConnectorConfig = spy(PulsarConnectorConfig.class);
    this.pulsarConnectorConfig.setMaxEntryReadBatchSize(1);
    this.pulsarConnectorConfig.setMaxSplitEntryQueueSize(10);
    this.pulsarConnectorConfig.setMaxSplitMessageQueueSize(100);
    Tenants tenants = mock(Tenants.class);
    doReturn(new LinkedList<>(topicNames.stream().map(TopicName::getTenant).collect(Collectors.toSet()))).when(tenants).getTenants();
    Namespaces namespaces = mock(Namespaces.class);
    when(namespaces.getNamespaces(anyString())).thenAnswer(new Answer<List<String>>() {

        @Override
        public List<String> answer(InvocationOnMock invocation) throws Throwable {
            Object[] args = invocation.getArguments();
            String tenant = (String) args[0];
            List<String> ns = getNamespace(tenant);
            if (ns.isEmpty()) {
                ClientErrorException cee = new ClientErrorException(Response.status(404).build());
                throw new PulsarAdminException(cee, cee.getMessage(), cee.getResponse().getStatus());
            }
            return ns;
        }
    });
    Topics topics = mock(Topics.class);
    when(topics.getList(anyString(), any())).thenAnswer(new Answer<List<String>>() {

        @Override
        public List<String> answer(InvocationOnMock invocationOnMock) throws Throwable {
            Object[] args = invocationOnMock.getArguments();
            String ns = (String) args[0];
            List<String> topics = getTopics(ns);
            if (topics.isEmpty()) {
                ClientErrorException cee = new ClientErrorException(Response.status(404).build());
                throw new PulsarAdminException(cee, cee.getMessage(), cee.getResponse().getStatus());
            }
            return topics;
        }
    });
    when(topics.getPartitionedTopicList(anyString())).thenAnswer(new Answer<List<String>>() {

        @Override
        public List<String> answer(InvocationOnMock invocationOnMock) throws Throwable {
            Object[] args = invocationOnMock.getArguments();
            String ns = (String) args[0];
            List<String> topics = getPartitionedTopics(ns);
            if (topics.isEmpty()) {
                ClientErrorException cee = new ClientErrorException(Response.status(404).build());
                throw new PulsarAdminException(cee, cee.getMessage(), cee.getResponse().getStatus());
            }
            return topics;
        }
    });
    when(topics.getPartitionedTopicMetadata(anyString())).thenAnswer(new Answer<PartitionedTopicMetadata>() {

        @Override
        public PartitionedTopicMetadata answer(InvocationOnMock invocationOnMock) throws Throwable {
            Object[] args = invocationOnMock.getArguments();
            String topic = (String) args[0];
            int partitions = partitionedTopicsToPartitions.get(topic) == null ? 0 : partitionedTopicsToPartitions.get(topic);
            return new PartitionedTopicMetadata(partitions);
        }
    });
    schemas = mock(Schemas.class);
    when(schemas.getSchemaInfo(anyString())).thenAnswer(new Answer<SchemaInfo>() {

        @Override
        public SchemaInfo answer(InvocationOnMock invocationOnMock) throws Throwable {
            Object[] args = invocationOnMock.getArguments();
            String topic = (String) args[0];
            if (topicsToSchemas.get(topic) != null) {
                return topicsToSchemas.get(topic);
            } else {
                ClientErrorException cee = new ClientErrorException(Response.status(404).build());
                throw new PulsarAdminException(cee, cee.getMessage(), cee.getResponse().getStatus());
            }
        }
    });
    pulsarAdmin = mock(PulsarAdmin.class);
    doReturn(tenants).when(pulsarAdmin).tenants();
    doReturn(namespaces).when(pulsarAdmin).namespaces();
    doReturn(topics).when(pulsarAdmin).topics();
    doReturn(schemas).when(pulsarAdmin).schemas();
    doReturn(pulsarAdmin).when(this.pulsarConnectorConfig).getPulsarAdmin();
    this.pulsarMetadata = new PulsarMetadata(pulsarConnectorId, this.pulsarConnectorConfig, dispatchingRowDecoderFactory);
    this.pulsarSplitManager = Mockito.spy(new PulsarSplitManager(pulsarConnectorId, this.pulsarConnectorConfig));
    ManagedLedgerFactory managedLedgerFactory = mock(ManagedLedgerFactory.class);
    when(managedLedgerFactory.openReadOnlyCursor(any(), any(), any())).then(new Answer<ReadOnlyCursor>() {

        private Map<String, Integer> positions = new HashMap<>();

        private int count = 0;

        @Override
        public ReadOnlyCursor answer(InvocationOnMock invocationOnMock) throws Throwable {
            Object[] args = invocationOnMock.getArguments();
            String topic = (String) args[0];
            PositionImpl positionImpl = (PositionImpl) args[1];
            int position = positionImpl.getEntryId() == -1 ? 0 : (int) positionImpl.getEntryId();
            positions.put(topic, position);
            String schemaName = TopicName.get(TopicName.get(topic.replaceAll("/persistent", "")).getPartitionedTopicName()).getSchemaName();
            long entries = topicsToNumEntries.get(schemaName);
            ReadOnlyCursorImpl readOnlyCursor = mock(ReadOnlyCursorImpl.class);
            doReturn(entries).when(readOnlyCursor).getNumberOfEntries();
            doAnswer(new Answer<Void>() {

                @Override
                public Void answer(InvocationOnMock invocation) throws Throwable {
                    Object[] args = invocation.getArguments();
                    Integer skipEntries = (Integer) args[0];
                    positions.put(topic, positions.get(topic) + skipEntries);
                    return null;
                }
            }).when(readOnlyCursor).skipEntries(anyInt());
            when(readOnlyCursor.getReadPosition()).thenAnswer(new Answer<PositionImpl>() {

                @Override
                public PositionImpl answer(InvocationOnMock invocationOnMock) throws Throwable {
                    return PositionImpl.get(0, positions.get(topic));
                }
            });
            doAnswer(new Answer() {

                @Override
                public Object answer(InvocationOnMock invocationOnMock) throws Throwable {
                    Object[] args = invocationOnMock.getArguments();
                    Integer readEntries = (Integer) args[0];
                    AsyncCallbacks.ReadEntriesCallback callback = (AsyncCallbacks.ReadEntriesCallback) args[2];
                    Object ctx = args[3];
                    new Thread(new Runnable() {

                        @Override
                        public void run() {
                            List<Entry> entries = new LinkedList<>();
                            for (int i = 0; i < readEntries; i++) {
                                TestPulsarConnector.Bar bar = new TestPulsarConnector.Bar();
                                bar.field1 = fooFunctions.get("bar.field1").apply(count) == null ? null : (int) fooFunctions.get("bar.field1").apply(count);
                                bar.field2 = fooFunctions.get("bar.field2").apply(count) == null ? null : (String) fooFunctions.get("bar.field2").apply(count);
                                bar.field3 = (float) fooFunctions.get("bar.field3").apply(count);
                                Foo foo = new Foo();
                                foo.field1 = (int) fooFunctions.get("field1").apply(count);
                                foo.field2 = (String) fooFunctions.get("field2").apply(count);
                                foo.field3 = (float) fooFunctions.get("field3").apply(count);
                                foo.field4 = (double) fooFunctions.get("field4").apply(count);
                                foo.field5 = (boolean) fooFunctions.get("field5").apply(count);
                                foo.field6 = (long) fooFunctions.get("field6").apply(count);
                                foo.timestamp = (long) fooFunctions.get("timestamp").apply(count);
                                foo.time = (int) fooFunctions.get("time").apply(count);
                                foo.date = (int) fooFunctions.get("date").apply(count);
                                foo.decimal = (BigDecimal) fooFunctions.get("decimal").apply(count);
                                foo.bar = bar;
                                foo.field7 = (Foo.TestEnum) fooFunctions.get("field7").apply(count);
                                MessageMetadata messageMetadata = new MessageMetadata().setProducerName("test-producer").setSequenceId(positions.get(topic)).setPublishTime(System.currentTimeMillis());
                                Schema schema = topicsToSchemas.get(schemaName).getType() == SchemaType.AVRO ? AvroSchema.of(Foo.class) : JSONSchema.of(Foo.class);
                                ByteBuf payload = io.netty.buffer.Unpooled.copiedBuffer(schema.encode(foo));
                                ByteBuf byteBuf = serializeMetadataAndPayload(Commands.ChecksumType.Crc32c, messageMetadata, payload);
                                completedBytes += byteBuf.readableBytes();
                                entries.add(EntryImpl.create(0, positions.get(topic), byteBuf));
                                positions.put(topic, positions.get(topic) + 1);
                                count++;
                            }
                            callback.readEntriesComplete(entries, ctx);
                        }
                    }).start();
                    return null;
                }
            }).when(readOnlyCursor).asyncReadEntries(anyInt(), anyLong(), any(), any(), any());
            when(readOnlyCursor.hasMoreEntries()).thenAnswer(new Answer<Boolean>() {

                @Override
                public Boolean answer(InvocationOnMock invocationOnMock) throws Throwable {
                    return positions.get(topic) < entries;
                }
            });
            when(readOnlyCursor.findNewestMatching(any(), any())).then(new Answer<Position>() {

                @Override
                public Position answer(InvocationOnMock invocationOnMock) throws Throwable {
                    Object[] args = invocationOnMock.getArguments();
                    com.google.common.base.Predicate<Entry> predicate = (com.google.common.base.Predicate<Entry>) args[1];
                    String schemaName = TopicName.get(TopicName.get(topic.replaceAll("/persistent", "")).getPartitionedTopicName()).getSchemaName();
                    List<Entry> entries = getTopicEntries(schemaName);
                    Integer target = null;
                    for (int i = entries.size() - 1; i >= 0; i--) {
                        Entry entry = entries.get(i);
                        if (predicate.apply(entry)) {
                            target = i;
                            break;
                        }
                    }
                    return target == null ? null : new PositionImpl(0, target);
                }
            });
            when(readOnlyCursor.getNumberOfEntries(any())).then(new Answer<Long>() {

                @Override
                public Long answer(InvocationOnMock invocationOnMock) throws Throwable {
                    Object[] args = invocationOnMock.getArguments();
                    com.google.common.collect.Range<PositionImpl> range = (com.google.common.collect.Range<PositionImpl>) args[0];
                    return (range.upperEndpoint().getEntryId() + 1) - range.lowerEndpoint().getEntryId();
                }
            });
            when(readOnlyCursor.getCurrentLedgerInfo()).thenReturn(MLDataFormats.ManagedLedgerInfo.LedgerInfo.newBuilder().setLedgerId(0).build());
            return readOnlyCursor;
        }
    });
    PulsarConnectorCache.instance = mock(PulsarConnectorCache.class);
    when(PulsarConnectorCache.instance.getManagedLedgerFactory()).thenReturn(managedLedgerFactory);
    for (Map.Entry<TopicName, PulsarSplit> split : splits.entrySet()) {
        PulsarRecordCursor pulsarRecordCursor = spy(new PulsarRecordCursor(topicsToColumnHandles.get(split.getKey()), split.getValue(), pulsarConnectorConfig, managedLedgerFactory, new ManagedLedgerConfig(), new PulsarConnectorMetricsTracker(new NullStatsProvider()), dispatchingRowDecoderFactory));
        this.pulsarRecordCursors.put(split.getKey(), pulsarRecordCursor);
    }
}

Example 13 with ReadOnlyCursor

use of org.apache.bookkeeper.mledger.ReadOnlyCursor in project pulsar by yahoo.

the class ManagedLedgerFactoryShutdownTest method openEncounteredShutdown.

@Test(timeOut = 5000)
public void openEncounteredShutdown() throws Exception {
    ManagedLedgerFactoryImpl factory = new ManagedLedgerFactoryImpl(metadataStore, bookKeeper);
    CountDownLatch callbackInvoked = new CountDownLatch(2);
    factory.asyncOpen(ledgerName, new AsyncCallbacks.OpenLedgerCallback() {

        @Override
        public void openLedgerComplete(ManagedLedger ledger, Object ctx) {
            callbackInvoked.countDown();
        }

        @Override
        public void openLedgerFailed(ManagedLedgerException exception, Object ctx) {
            callbackInvoked.countDown();
        }
    }, null);
    factory.asyncOpenReadOnlyCursor(ledgerName, PositionImpl.EARLIEST, new ManagedLedgerConfig(), new AsyncCallbacks.OpenReadOnlyCursorCallback() {

        @Override
        public void openReadOnlyCursorComplete(ReadOnlyCursor cursor, Object ctx) {
            callbackInvoked.countDown();
        }

        @Override
        public void openReadOnlyCursorFailed(ManagedLedgerException exception, Object ctx) {
            log.info("openReadOnlyCursorFailed");
            callbackInvoked.countDown();
        }
    }, null);
    log.info("Shutdown factory...");
    factory.shutdownAsync().get();
    // make zk returned after factory shutdown
    slowZk.countDown();
    // 
    Assert.assertTrue(callbackInvoked.await(5, TimeUnit.SECONDS));
    // ManagedLedgerFactoryClosedException should be thrown after factory is shutdown
    Assert.assertThrows(ManagedLedgerException.ManagedLedgerFactoryClosedException.class, () -> factory.open(ledgerName));
    Assert.assertThrows(ManagedLedgerException.ManagedLedgerFactoryClosedException.class, () -> factory.openReadOnlyCursor(ledgerName, PositionImpl.EARLIEST, new ManagedLedgerConfig()));
}

Example 14 with ReadOnlyCursor

use of org.apache.bookkeeper.mledger.ReadOnlyCursor in project pulsar by yahoo.

the class ReadOnlyManagedLedgerImpl method initializeAndCreateCursor.

CompletableFuture<ReadOnlyCursor> initializeAndCreateCursor(PositionImpl startPosition) {
    CompletableFuture<ReadOnlyCursor> future = new CompletableFuture<>();
    // Fetch the list of existing ledgers in the managed ledger
    store.getManagedLedgerInfo(name, false, new MetaStoreCallback<ManagedLedgerInfo>() {

        @Override
        public void operationComplete(ManagedLedgerInfo mlInfo, Stat stat) {
            state = State.LedgerOpened;
            for (LedgerInfo ls : mlInfo.getLedgerInfoList()) {
                ledgers.put(ls.getLedgerId(), ls);
            }
            // Last ledger stat may be zeroed, we must update it
            if (ledgers.size() > 0 && ledgers.lastEntry().getValue().getEntries() == 0) {
                long lastLedgerId = ledgers.lastKey();
                // Fetch last add confirmed for last ledger
                bookKeeper.newOpenLedgerOp().withRecovery(false).withLedgerId(lastLedgerId).withDigestType(config.getDigestType()).withPassword(config.getPassword()).execute().thenAccept(readHandle -> {
                    readHandle.readLastAddConfirmedAsync().thenAccept(lastAddConfirmed -> {
                        LedgerInfo info = LedgerInfo.newBuilder().setLedgerId(lastLedgerId).setEntries(lastAddConfirmed + 1).setSize(readHandle.getLength()).setTimestamp(clock.millis()).build();
                        ledgers.put(lastLedgerId, info);
                        future.complete(createReadOnlyCursor(startPosition));
                    }).exceptionally(ex -> {
                        if (ex instanceof CompletionException && ex.getCause() instanceof IllegalArgumentException) {
                            // The last ledger was empty, so we cannot read the last add confirmed.
                            LedgerInfo info = LedgerInfo.newBuilder().setLedgerId(lastLedgerId).setEntries(0).setSize(0).setTimestamp(clock.millis()).build();
                            ledgers.put(lastLedgerId, info);
                            future.complete(createReadOnlyCursor(startPosition));
                        } else {
                            future.completeExceptionally(new ManagedLedgerException(ex));
                        }
                        return null;
                    });
                }).exceptionally(ex -> {
                    if (ex instanceof CompletionException && ex.getCause() instanceof ArrayIndexOutOfBoundsException) {
                        // The last ledger was empty, so we cannot read the last add confirmed.
                        LedgerInfo info = LedgerInfo.newBuilder().setLedgerId(lastLedgerId).setEntries(0).setSize(0).setTimestamp(clock.millis()).build();
                        ledgers.put(lastLedgerId, info);
                        future.complete(createReadOnlyCursor(startPosition));
                    } else {
                        future.completeExceptionally(new ManagedLedgerException(ex));
                    }
                    return null;
                });
            } else {
                // The read-only managed ledger is ready to use
                future.complete(createReadOnlyCursor(startPosition));
            }
        }

        @Override
        public void operationFailed(MetaStoreException e) {
            if (e instanceof MetadataNotFoundException) {
                future.completeExceptionally(new ManagedLedgerNotFoundException(e));
            } else {
                future.completeExceptionally(new ManagedLedgerException(e));
            }
        }
    });
    return future;
}

Example 15 with ReadOnlyCursor

use of org.apache.bookkeeper.mledger.ReadOnlyCursor in project incubator-pulsar by apache.

the class ReadOnlyCursorTest method specifyStartPosition.

@Test
void specifyStartPosition() throws Exception {
    ManagedLedger ledger = factory.open("simple", new ManagedLedgerConfig().setRetentionTime(1, TimeUnit.HOURS));
    int N = 10;
    for (int i = 0; i < N; i++) {
        ledger.addEntry(("entry-" + i).getBytes());
    }
    ReadOnlyCursor cursor = factory.openReadOnlyCursor("simple", PositionImpl.EARLIEST, new ManagedLedgerConfig());
    assertEquals(cursor.getNumberOfEntries(), N);
    assertTrue(cursor.hasMoreEntries());
    Position readPosition = cursor.getReadPosition();
    cursor = factory.openReadOnlyCursor("simple", readPosition, new ManagedLedgerConfig());
    assertEquals(cursor.getNumberOfEntries(), N);
    assertTrue(cursor.hasMoreEntries());
    cursor.skipEntries(5);
    Position newReadPosition = cursor.getReadPosition();
    cursor = factory.openReadOnlyCursor("simple", newReadPosition, new ManagedLedgerConfig());
    assertEquals(cursor.getNumberOfEntries(), N - 5);
    assertTrue(cursor.hasMoreEntries());
}