Examples with ExcerptAppender net.openhft.chronicle.queue.ExcerptAppender used on opensource projects

Example 41 with ExcerptAppender

use of net.openhft.chronicle.queue.ExcerptAppender in project Chronicle-Queue by OpenHFT.

the class ExcerptsSkippedWhenTailerDirectionNoneTest method shouldNotSkipMessageAtStartOfQueue.

@Test
public void shouldNotSkipMessageAtStartOfQueue() throws Exception {
    final File tmpDir = DirectoryUtils.tempDir(ExcerptsSkippedWhenTailerDirectionNoneTest.class.getSimpleName());
    try (final ChronicleQueue writeQueue = SingleChronicleQueueBuilder.binary(tmpDir).testBlockSize().rollCycle(TEST_DAILY).build()) {
        final ExcerptAppender excerptAppender = writeQueue.acquireAppender();
        try (final DocumentContext ctx = excerptAppender.writingDocument()) {
            ctx.wire().getValueOut().object("first");
        }
        try (final DocumentContext ctx = excerptAppender.writingDocument()) {
            ctx.wire().getValueOut().object("second");
        }
    }
    try (final SingleChronicleQueue readQueue = SingleChronicleQueueBuilder.binary(tmpDir).testBlockSize().rollCycle(TEST_DAILY).build()) {
        final ExcerptTailer tailer = readQueue.createTailer();
        final RollCycle rollCycle = readQueue.rollCycle();
        assertThat(rollCycle.toSequenceNumber(tailer.index()), is(0L));
        try (final DocumentContext ctx = tailer.direction(TailerDirection.NONE).readingDocument()) {
        // access the first document without incrementing sequence number
        }
        assertThat(rollCycle.toSequenceNumber(tailer.index()), is(0L));
        String value;
        try (DocumentContext dc = tailer.direction(TailerDirection.FORWARD).readingDocument()) {
            ValueIn valueIn = dc.wire().getValueIn();
            value = (String) valueIn.object();
        }
        assertThat(rollCycle.toSequenceNumber(tailer.index()), is(1L));
        assertThat(value, is("first"));
        try (DocumentContext dc = tailer.direction(TailerDirection.NONE).readingDocument()) {
            ValueIn valueIn = dc.wire().getValueIn();
            value = (String) valueIn.object();
        }
        assertThat(rollCycle.toSequenceNumber(tailer.index()), is(1L));
        assertThat(value, is("second"));
        try (DocumentContext dc = tailer.direction(TailerDirection.NONE).readingDocument()) {
            ValueIn valueIn = dc.wire().getValueIn();
            value = (String) valueIn.object();
        }
        assertThat(rollCycle.toSequenceNumber(tailer.index()), is(1L));
        assertThat(value, is("second"));
    }
}

Example 42 with ExcerptAppender

use of net.openhft.chronicle.queue.ExcerptAppender in project Chronicle-Queue by OpenHFT.

the class MoveToIndexTest method shouldMoveToPreviousIndexAfterDocumentIsConsumed.

@Test
public void shouldMoveToPreviousIndexAfterDocumentIsConsumed() throws Exception {
    File queuePath = tmpFolder.newFolder("cq");
    try (ChronicleQueue queue = SingleChronicleQueueBuilder.binary(queuePath).build()) {
        ExcerptAppender appender = queue.acquireAppender();
        for (int i = 1; i < 10; ++i) {
            appender.writeText("id" + i);
        }
        ExcerptTailer tailer = queue.createTailer();
        assertNext(tailer, "id1");
        long index = tailer.index();
        assertNext(tailer, "id2");
        tailer.moveToIndex(index);
        assertNext(tailer, "id2");
        tailer.moveToIndex(index);
        assertNext(tailer, "id2");
    }
}

Example 43 with ExcerptAppender

use of net.openhft.chronicle.queue.ExcerptAppender in project Chronicle-Queue by OpenHFT.

the class NotCompleteTest method testMessageLeftNotComplete.

@Test
public void testMessageLeftNotComplete() {
    File tmpDir = DirectoryUtils.tempDir("testMessageLeftNotComplete");
    try (final ChronicleQueue queue = binary(tmpDir).testBlockSize().rollCycle(RollCycles.TEST_DAILY).build()) {
        ExcerptAppender appender = queue.acquireAppender().lazyIndexing(lazyIndexing);
        // start a message which was not completed.
        DocumentContext dc = appender.writingDocument();
        dc.wire().write("some").text("data");
    // didn't call dc.close();
    }
    final SingleChronicleQueue singleChronicleQueue = null;
    try (final ChronicleQueue queue = binary(tmpDir).testBlockSize().build()) {
        ExcerptTailer tailer = queue.createTailer();
        try (DocumentContext dc = tailer.readingDocument()) {
            assertFalse(dc.isPresent());
        }
        String expectedEager = "--- !!meta-data #binary\n" + "header: !SCQStore {\n" + "  wireType: !WireType BINARY_LIGHT,\n" + "  writePosition: [\n" + "    0,\n" + "    0\n" + "  ],\n" + "  roll: !SCQSRoll {\n" + "    length: !int 86400000,\n" + "    format: yyyyMMdd,\n" + "    epoch: 0\n" + "  },\n" + "  indexing: !SCQSIndexing {\n" + "    indexCount: 8,\n" + "    indexSpacing: 1,\n" + "    index2Index: 442,\n" + "    lastIndex: 0\n" + "  },\n" + "  lastAcknowledgedIndexReplicated: -1,\n" + "  recovery: !TimedStoreRecovery {\n" + "    timeStamp: 0\n" + "  },\n" + "  deltaCheckpointInterval: 0,\n" + "  lastIndexReplicated: -1,\n" + "  sourceId: 0\n" + "}\n" + "# position: 442, header: -1\n" + "--- !!meta-data #binary\n" + "index2index: [\n" + "  # length: 8, used: 1\n" + "  544,\n" + "  0, 0, 0, 0, 0, 0, 0\n" + "]\n" + "# position: 544, header: -1\n" + "--- !!meta-data #binary\n" + "index: [\n" + "  # length: 8, used: 0\n" + "  0, 0, 0, 0, 0, 0, 0, 0\n" + "]\n" + "# position: 640, header: -1 or 0\n" + "--- !!not-ready-data! #binary\n" + "...\n" + "# 130428 bytes remaining\n";
        String expectedLazy = "--- !!meta-data #binary\n" + "header: !SCQStore {\n" + "  wireType: !WireType BINARY_LIGHT,\n" + "  writePosition: [\n" + "    0,\n" + "    0\n" + "  ],\n" + "  roll: !SCQSRoll {\n" + "    length: !int 86400000,\n" + "    format: yyyyMMdd,\n" + "    epoch: 0\n" + "  },\n" + "  indexing: !SCQSIndexing {\n" + "    indexCount: 8,\n" + "    indexSpacing: 1,\n" + "    index2Index: 0,\n" + "    lastIndex: 0\n" + "  },\n" + "  lastAcknowledgedIndexReplicated: -1,\n" + "  recovery: !TimedStoreRecovery {\n" + "    timeStamp: 0\n" + "  },\n" + "  deltaCheckpointInterval: 0,\n" + "  lastIndexReplicated: -1,\n" + "  sourceId: 0\n" + "}\n" + "# position: 442, header: -1 or 0\n" + "--- !!not-ready-data! #binary\n" + "...\n" + "# 130626 bytes remaining\n";
        assertEquals(lazyIndexing ? expectedLazy : expectedEager, queue.dump());
    }
    try (final ChronicleQueue queue = binary(tmpDir).testBlockSize().timeoutMS(500).build()) {
        ExcerptAppender appender = queue.acquireAppender();
        try (DocumentContext dc = appender.writingDocument()) {
            dc.wire().write("some").text("data");
        }
        String expectedEager = "--- !!meta-data #binary\n" + "header: !SCQStore {\n" + "  wireType: !WireType BINARY_LIGHT,\n" + "  writePosition: [\n" + "    33412,\n" + "    143503447293952\n" + "  ],\n" + "  roll: !SCQSRoll {\n" + "    length: !int 86400000,\n" + "    format: yyyyMMdd,\n" + "    epoch: 0\n" + "  },\n" + "  indexing: !SCQSIndexing {\n" + "    indexCount: 8,\n" + "    indexSpacing: 1,\n" + "    index2Index: 442,\n" + "    lastIndex: 1\n" + "  },\n" + "  lastAcknowledgedIndexReplicated: -1,\n" + "  recovery: !TimedStoreRecovery {\n" + "    timeStamp: 0\n" + "  },\n" + "  deltaCheckpointInterval: 0,\n" + "  lastIndexReplicated: -1,\n" + "  sourceId: 0\n" + "}\n" + "# position: 442, header: -1\n" + "--- !!meta-data #binary\n" + "index2index: [\n" + "  # length: 8, used: 1\n" + "  544,\n" + "  0, 0, 0, 0, 0, 0, 0\n" + "]\n" + "# position: 544, header: -1\n" + "--- !!meta-data #binary\n" + "index: [\n" + "  # length: 8, used: 1\n" + "  33412,\n" + "  0, 0, 0, 0, 0, 0, 0\n" + "]\n" + "# position: 640, header: -1\n" + "--- !!meta-data #binary\n" + "\"!! Skipped due to recovery of locked header !!";
        String expectedEagerFooter = "# position: 33412, header: 0\n" + "--- !!data #binary\n" + "some: data\n" + "...\n" + "# 97642 bytes remaining\n";
        String expectedLazy = "--- !!meta-data #binary\n" + "header: !SCQStore {\n" + "  wireType: !WireType BINARY_LIGHT,\n" + "  writePosition: [\n" + "    33408,\n" + "    143486267424768\n" + "  ],\n" + "  roll: !SCQSRoll {\n" + "    length: !int 86400000,\n" + "    format: yyyyMMdd,\n" + "    epoch: 0\n" + "  },\n" + "  indexing: !SCQSIndexing {\n" + "    indexCount: 8,\n" + "    indexSpacing: 1,\n" + "    index2Index: 33212,\n" + "    lastIndex: 1\n" + "  },\n" + "  lastAcknowledgedIndexReplicated: -1,\n" + "  recovery: !TimedStoreRecovery {\n" + "    timeStamp: 0\n" + "  },\n" + "  deltaCheckpointInterval: 0,\n" + "  lastIndexReplicated: -1,\n" + "  sourceId: 0\n" + "}\n" + "# position: 442, header: -1\n" + "--- !!meta-data #binary\n" + "\"!! Skipped due to recovery of locked header !!";
        String expectedLazyFooter = "# position: 33212, header: -1\n" + "--- !!meta-data #binary\n" + "index2index: [\n" + "  # length: 8, used: 1\n" + "  33312,\n" + "  0, 0, 0, 0, 0, 0, 0\n" + "]\n" + "# position: 33312, header: -1\n" + "--- !!meta-data #binary\n" + "index: [\n" + "  # length: 8, used: 1\n" + "  33408,\n" + "  0, 0, 0, 0, 0, 0, 0\n" + "]\n" + "# position: 33408, header: 0\n" + "--- !!data #binary\n" + "some: data\n" + "...\n" + "# 97646 bytes remaining\n";
        if (lazyIndexing) {
            assertThat(queue.dump(), containsString(expectedLazy));
            assertThat(queue.dump(), containsString(expectedLazyFooter));
        } else {
            assertThat(queue.dump(), containsString(expectedEager));
            assertThat(queue.dump(), containsString(expectedEagerFooter));
        }
    }
}

Example 44 with ExcerptAppender

use of net.openhft.chronicle.queue.ExcerptAppender in project Chronicle-Queue by OpenHFT.

the class NotCompleteTest method testInterruptedDuringSerialisation.

@Test
public void testInterruptedDuringSerialisation() throws InterruptedException {
    final File tmpDir = DirectoryUtils.tempDir("testInterruptedDuringSerialisation_" + (lazyIndexing ? "lazy" : "eager"));
    DirectoryUtils.deleteDir(tmpDir);
    tmpDir.mkdirs();
    final List<String> names = Collections.synchronizedList(new ArrayList<>());
    final Person person1 = new Person(40, "Terry");
    final Person interrupter = new Person(50, Person.INTERRUPT);
    final Person thrower = new Person(80, Person.THROW);
    final Person person2 = new Person(90, "Bert");
    try (final ChronicleQueue queueReader = binary(tmpDir).testBlockSize().rollCycle(RollCycles.TEST_DAILY).timeoutMS(500).build();
        final ChronicleQueue queueWriter = binary(tmpDir).testBlockSize().rollCycle(RollCycles.TEST_DAILY).build()) {
        ExcerptTailer tailer = queueReader.createTailer();
        MethodReader reader = tailer.methodReader((PersonListener) person -> names.add(person.name));
        final StringBuilder queueDumpBeforeInterruptedWrite = new StringBuilder();
        // set up
        doWrite(queueWriter, (proxy, queue) -> {
            proxy.accept(person1);
            queueDumpBeforeInterruptedWrite.append(queue.dump());
        });
        String cleanedQueueDump = cleanQueueDump(queueDumpBeforeInterruptedWrite.toString());
        // start up writer thread
        Thread writerThread = new Thread(() -> doWrite(queueWriter, (proxy, queue) -> {
            // thread is interrupted during this
            proxy.accept(interrupter);
        }));
        writerThread.start();
        writerThread.join();
        try (final ChronicleQueue queue = binary(tmpDir).testBlockSize().rollCycle(RollCycles.TEST_DAILY).build()) {
            String dump = cleanQueueDump(queue.dump());
            assertEquals("queue should be unchanged by the interrupted write", cleanedQueueDump, dump);
        }
        // check only 1 written
        assertTrue(reader.readOne());
        assertEquals(1, names.size());
        assertEquals(person1.name, names.get(0));
        assertFalse(reader.readOne());
        // do a write that throws an exception
        doWrite(queueWriter, (proxy, queue) -> {
            try {
                proxy.accept(thrower);
            } catch (NullPointerException npe) {
            // ignore
            }
        });
        try (final ChronicleQueue queue = binary(tmpDir).testBlockSize().rollCycle(RollCycles.TEST_DAILY).build()) {
            String dump = cleanQueueDump(queue.dump());
            if (lazyIndexing) {
                // reading the queue creates the index, thus changing it, so do a text comparison here
                cleanedQueueDump = "--- !!meta-data #binary\n" + "header: !SCQStore {\n" + "  wireType: !WireType BINARY_LIGHT,\n" + "  writePosition: [\n" + "    442,\n" + "    0\n" + "  ],\n" + "  roll: !SCQSRoll {\n" + "    length: !int 86400000,\n" + "    format: yyyyMMdd,\n" + "    epoch: 0\n" + "  },\n" + "  indexing: !SCQSIndexing {\n" + "    indexCount: 8,\n" + "    indexSpacing: 1,\n" + "    index2Index: 475,\n" + "    lastIndex: 0\n" + "  },\n" + "  lastAcknowledgedIndexReplicated: -1,\n" + "  recovery: !TimedStoreRecovery {\n" + "    timeStamp: 0\n" + "  },\n" + "  deltaCheckpointInterval: 0,\n" + "  lastIndexReplicated: -1,\n" + "  sourceId: 0\n" + "}\n" + "# position: 442, header: 0\n" + "--- !!data #binary\n" + "accept: {\n" + "  age: 40,\n" + "  name: Terry\n" + "}\n" + "# position: 475, header: 0\n" + "--- !!meta-data #binary\n" + "index2index: [\n" + "  # length: 8, used: 0\n" + "  0, 0, 0, 0, 0, 0, 0, 0\n" + "]\n" + "...\n" + "\n";
            }
            assertEquals("queue should be unchanged by the failed write", cleanedQueueDump, dump);
        }
        // check nothing else written
        assertFalse(reader.readOne());
        // do an empty write
        ExcerptAppender appender = queueWriter.acquireAppender().lazyIndexing(lazyIndexing);
        DocumentContext wd = appender.writingDocument();
        wd.rollbackOnClose();
        wd.close();
        // check queue unchanged
        String dump = cleanQueueDump(queueWriter.dump());
        assertEquals("queue should be unchanged by the failed write", cleanedQueueDump, dump);
        // check nothing else written
        assertFalse(reader.readOne());
        // write another person to same queue in this thread
        doWrite(queueWriter, (proxy, queue) -> proxy.accept(person2));
        assertTrue(reader.readOne());
        assertEquals(2, names.size());
        assertEquals(person2.name, names.get(1));
        assertFalse(reader.readOne());
    }
}

Example 45 with ExcerptAppender

use of net.openhft.chronicle.queue.ExcerptAppender in project Chronicle-Queue by OpenHFT.

the class QueueEpochTest method shouldRollQueueFilesAccordingToUtcOffset.

@Test
public void shouldRollQueueFilesAccordingToUtcOffset() throws Exception {
    logDebug("UTC offset is %dms%n", UTC_OFFSET);
    final File queueDir = DirectoryUtils.tempDir(QueueEpochTest.class.getSimpleName());
    final CapturingStoreFileListener fileListener = new CapturingStoreFileListener();
    setCurrentTime(MIDNIGHT_UTC_BASE_TIME);
    try (final SingleChronicleQueue queue = SingleChronicleQueueBuilder.binary(queueDir).rollTime(LocalTime.of(21, 15), // epoch is deprecated in favour of rollTime
    ZoneOffset.UTC).timeProvider(// override the clock used by the queue to detect roll-over
    this::getCurrentTime).storeFileListener(// capture file-roll events
    fileListener).rollCycle(DAILY_ROLL).build()) {
        logDebug("Queue epoch offset is %d%n", queue.epoch());
        final ExcerptAppender appender = queue.acquireAppender();
        final TestEvent eventWriter = appender.methodWriter(TestEvent.class);
        setCurrentTime(TEN_MINUTES_BEFORE_ROLL_TIME);
        eventWriter.setOrGetEvent(Long.toString(TEN_MINUTES_BEFORE_ROLL_TIME));
        setCurrentTime(FIVE_MINUTES_BEFORE_ROLL_TIME);
        eventWriter.setOrGetEvent(Long.toString(FIVE_MINUTES_BEFORE_ROLL_TIME));
        setCurrentTime(ONE_SECOND_BEFORE_ROLL_TIME);
        eventWriter.setOrGetEvent(Long.toString(ONE_SECOND_BEFORE_ROLL_TIME));
        assertThat(fileListener.numberOfRollEvents(), is(0));
        setCurrentTime(ONE_SECOND_AFTER_ROLL_TIME);
        eventWriter.setOrGetEvent(Long.toString(ONE_SECOND_AFTER_ROLL_TIME));
        assertThat(fileListener.numberOfRollEvents(), is(1));
        setCurrentTime(ONE_SECOND_BEFORE_ROLL_TIME + ONE_DAY);
        eventWriter.setOrGetEvent(Long.toString(ONE_SECOND_BEFORE_ROLL_TIME + ONE_DAY));
        assertThat(fileListener.numberOfRollEvents(), is(1));
        setCurrentTime(ONE_SECOND_AFTER_ROLL_TIME + ONE_DAY);
        eventWriter.setOrGetEvent(Long.toString(ONE_SECOND_AFTER_ROLL_TIME + ONE_DAY));
        assertThat(fileListener.numberOfRollEvents(), is(2));
    }
}