Examples with TopicMetadata co.cask.cdap.messaging.TopicMetadata used on opensource projects

Example 1 with TopicMetadata

use of co.cask.cdap.messaging.TopicMetadata in project cdap by caskdata.

the class MessagingHttpServiceTest method testTxMaxLifeTime.

@Test
public void testTxMaxLifeTime() throws Exception {
    NamespaceId nsId = new NamespaceId("txCheck");
    TopicId topic1 = nsId.topic("t1");
    // Create a topic
    client.createTopic(new TopicMetadata(topic1));
    final RollbackDetail rollbackDetail = client.publish(StoreRequestBuilder.of(topic1).setTransaction(1L).addPayloads("a", "b").build());
    try {
        client.publish(StoreRequestBuilder.of(topic1).setTransaction(-Long.MAX_VALUE).addPayloads("c", "d").build());
        Assert.fail("Expected IOException");
    } catch (IOException ex) {
    // expected
    }
    Set<String> msgs = new HashSet<>();
    CloseableIterator<RawMessage> messages = client.prepareFetch(topic1).fetch();
    while (messages.hasNext()) {
        RawMessage message = messages.next();
        msgs.add(Bytes.toString(message.getPayload()));
    }
    Assert.assertEquals(2, msgs.size());
    Assert.assertTrue(msgs.contains("a"));
    Assert.assertTrue(msgs.contains("b"));
    messages.close();
    client.rollback(topic1, rollbackDetail);
    client.deleteTopic(topic1);
}

Example 2 with TopicMetadata

use of co.cask.cdap.messaging.TopicMetadata in project cdap by caskdata.

the class MessagingHttpServiceTest method testBasicPubSub.

@Test
public void testBasicPubSub() throws Exception {
    TopicId topicId = new NamespaceId("ns1").topic("testBasicPubSub");
    // Publish to a non-existing topic should get not found exception
    try {
        client.publish(StoreRequestBuilder.of(topicId).addPayloads("a").build());
        Assert.fail("Expected TopicNotFoundException");
    } catch (TopicNotFoundException e) {
    // Expected
    }
    // Consume from a non-existing topic should get not found exception
    try {
        client.prepareFetch(topicId).fetch();
        Assert.fail("Expected TopicNotFoundException");
    } catch (TopicNotFoundException e) {
    // Expected
    }
    client.createTopic(new TopicMetadata(topicId));
    // Publish a non-transactional message with empty payload should result in failure
    try {
        client.publish(StoreRequestBuilder.of(topicId).build());
        Assert.fail("Expected IllegalArgumentException");
    } catch (IllegalArgumentException e) {
    // Expected
    }
    // Publish a non-tx message, no RollbackDetail is returned
    Assert.assertNull(client.publish(StoreRequestBuilder.of(topicId).addPayloads("m0", "m1").build()));
    // Publish a transactional message, a RollbackDetail should be returned
    RollbackDetail rollbackDetail = client.publish(StoreRequestBuilder.of(topicId).addPayloads("m2").setTransaction(1L).build());
    Assert.assertNotNull(rollbackDetail);
    // Rollback the published message
    client.rollback(topicId, rollbackDetail);
    // Fetch messages non-transactionally (should be able to read all the messages since rolled back messages
    // are still visible until ttl kicks in)
    List<RawMessage> messages = new ArrayList<>();
    try (CloseableIterator<RawMessage> iterator = client.prepareFetch(topicId).fetch()) {
        Iterators.addAll(messages, iterator);
    }
    Assert.assertEquals(3, messages.size());
    for (int i = 0; i < 3; i++) {
        Assert.assertEquals("m" + i, Bytes.toString(messages.get(i).getPayload()));
    }
    // Consume transactionally. It should get only m0 and m1 since m2 has been rolled back
    List<RawMessage> txMessages = new ArrayList<>();
    Transaction transaction = new Transaction(3L, 3L, new long[0], new long[] { 2L }, 2L);
    try (CloseableIterator<RawMessage> iterator = client.prepareFetch(topicId).setStartTime(0).setTransaction(transaction).fetch()) {
        Iterators.addAll(txMessages, iterator);
    }
    Assert.assertEquals(2, txMessages.size());
    for (int i = 0; i < 2; i++) {
        Assert.assertEquals("m" + i, Bytes.toString(messages.get(i).getPayload()));
    }
    // Fetch again from a given message offset exclusively.
    // Expects one message to be fetched
    byte[] startMessageId = messages.get(1).getId();
    try (CloseableIterator<RawMessage> iterator = client.prepareFetch(topicId).setStartMessage(startMessageId, false).fetch()) {
        // It should have only one message (m2)
        Assert.assertTrue(iterator.hasNext());
        RawMessage msg = iterator.next();
        Assert.assertEquals("m2", Bytes.toString(msg.getPayload()));
    }
    // Fetch again from the last message offset exclusively
    // Expects no message to be fetched
    startMessageId = messages.get(2).getId();
    try (CloseableIterator<RawMessage> iterator = client.prepareFetch(topicId).setStartMessage(startMessageId, false).fetch()) {
        Assert.assertFalse(iterator.hasNext());
    }
    // Fetch with start time. It should get both m0 and m1 since they are published in the same request, hence
    // having the same publish time
    startMessageId = messages.get(1).getId();
    try (CloseableIterator<RawMessage> iterator = client.prepareFetch(topicId).setStartTime(new MessageId(startMessageId).getPublishTimestamp()).setLimit(2).fetch()) {
        messages.clear();
        Iterators.addAll(messages, iterator);
    }
    Assert.assertEquals(2, messages.size());
    for (int i = 0; i < 2; i++) {
        Assert.assertEquals("m" + i, Bytes.toString(messages.get(i).getPayload()));
    }
    // Publish 2 messages, one transactionally, one without transaction
    client.publish(StoreRequestBuilder.of(topicId).addPayloads("m3").setTransaction(2L).build());
    client.publish(StoreRequestBuilder.of(topicId).addPayloads("m4").build());
    // Consume without transactional, it should see m2, m3 and m4
    startMessageId = messages.get(1).getId();
    try (CloseableIterator<RawMessage> iterator = client.prepareFetch(topicId).setStartMessage(startMessageId, false).fetch()) {
        messages.clear();
        Iterators.addAll(messages, iterator);
    }
    Assert.assertEquals(3, messages.size());
    for (int i = 0; i < 3; i++) {
        Assert.assertEquals("m" + (i + 2), Bytes.toString(messages.get(i).getPayload()));
    }
    // Consume using a transaction that doesn't have tx = 2L visible. It should get no message as it should block on m3
    transaction = new Transaction(3L, 3L, new long[0], new long[] { 2L }, 2L);
    try (CloseableIterator<RawMessage> iterator = client.prepareFetch(topicId).setStartMessage(startMessageId, false).setTransaction(transaction).fetch()) {
        Assert.assertFalse(iterator.hasNext());
    }
    // Consume using a transaction that has tx = 2L in the invalid list. It should skip m3 and got m4
    transaction = new Transaction(3L, 3L, new long[] { 2L }, new long[0], 0L);
    try (CloseableIterator<RawMessage> iterator = client.prepareFetch(topicId).setStartMessage(startMessageId, false).setTransaction(transaction).fetch()) {
        messages.clear();
        Iterators.addAll(messages, iterator);
    }
    Assert.assertEquals(1, messages.size());
    Assert.assertEquals("m4", Bytes.toString(messages.get(0).getPayload()));
    // Consume using a transaction that has tx = 2L committed. It should get m3 and m4
    transaction = new Transaction(3L, 3L, new long[0], new long[0], 0L);
    try (CloseableIterator<RawMessage> iterator = client.prepareFetch(topicId).setStartMessage(startMessageId, false).setTransaction(transaction).fetch()) {
        messages.clear();
        Iterators.addAll(messages, iterator);
    }
    Assert.assertEquals(2, messages.size());
    for (int i = 0; i < 2; i++) {
        Assert.assertEquals("m" + (i + 3), Bytes.toString(messages.get(i).getPayload()));
    }
    client.deleteTopic(topicId);
}

Example 3 with TopicMetadata

use of co.cask.cdap.messaging.TopicMetadata in project cdap by caskdata.

the class PayloadTableTest method testSingleMessage.

@Test
public void testSingleMessage() throws Exception {
    TopicId topicId = NamespaceId.DEFAULT.topic("singlePayload");
    TopicMetadata metadata = new TopicMetadata(topicId, DEFAULT_PROPERTY);
    String payload = "data";
    long txWritePtr = 123L;
    try (MetadataTable metadataTable = getMetadataTable();
        PayloadTable table = getPayloadTable()) {
        metadataTable.createTopic(metadata);
        List<PayloadTable.Entry> entryList = new ArrayList<>();
        entryList.add(new TestPayloadEntry(topicId, GENERATION, txWritePtr, 1L, (short) 1, Bytes.toBytes(payload)));
        table.store(entryList.iterator());
        byte[] messageId = new byte[MessageId.RAW_ID_SIZE];
        MessageId.putRawId(0L, (short) 0, 0L, (short) 0, messageId, 0);
        try (CloseableIterator<PayloadTable.Entry> iterator = table.fetch(metadata, txWritePtr, new MessageId(messageId), false, Integer.MAX_VALUE)) {
            // Fetch not including the first message, expect empty
            Assert.assertFalse(iterator.hasNext());
        }
        try (CloseableIterator<PayloadTable.Entry> iterator = table.fetch(metadata, txWritePtr, new MessageId(messageId), true, Integer.MAX_VALUE)) {
            // Fetch including the first message
            Assert.assertTrue(iterator.hasNext());
            PayloadTable.Entry entry = iterator.next();
            Assert.assertArrayEquals(Bytes.toBytes(payload), entry.getPayload());
            Assert.assertEquals(txWritePtr, entry.getTransactionWritePointer());
            Assert.assertFalse(iterator.hasNext());
        }
    }
}

Example 4 with TopicMetadata

use of co.cask.cdap.messaging.TopicMetadata in project cdap by caskdata.

the class CachingMessageTableTest method testCachePruning.

@Test
public void testCachePruning() throws Exception {
    long txGracePeriod = 6;
    CConfiguration cConf = CConfiguration.create();
    cConf.setLong(CachingMessageTable.PRUNE_GRACE_PERIOD, txGracePeriod);
    // Creates a CachingMessageTable with a controlled time provider
    final AtomicLong currentTimeMillis = new AtomicLong(0);
    MessageTable messageTable = new CachingMessageTable(cConf, super.getMessageTable(), cacheProvider, new TimeProvider() {

        @Override
        public long currentTimeMillis() {
            return currentTimeMillis.get();
        }
    });
    // Insert 10 entries, with different publish time
    TopicMetadata metadata = new TopicMetadata(NamespaceId.DEFAULT.topic("test"), TopicMetadata.GENERATION_KEY, 1, TopicMetadata.TTL_KEY, 86400);
    for (int i = 0; i < 10; i++) {
        // Key is (topic, generation, publish time, sequence id)
        byte[] key = Bytes.concat(MessagingUtils.toDataKeyPrefix(metadata.getTopicId(), metadata.getGeneration()), Bytes.toBytes((long) i), Bytes.toBytes((short) 0));
        // Store a message with a write pointer
        messageTable.store(Collections.singleton(new ImmutableMessageTableEntry(key, Bytes.toBytes("Payload " + i), Bytes.toBytes((long) i))).iterator());
    }
    // Update the current time to 11
    currentTimeMillis.set(11);
    // Fetch from the table without transaction, should get all entries.
    try (CloseableIterator<MessageTable.Entry> iter = messageTable.fetch(metadata, 0, 100, null)) {
        List<MessageTable.Entry> entries = Lists.newArrayList(iter);
        Assert.assertEquals(10, entries.size());
        // All entries must be from the cache
        for (MessageTable.Entry entry : entries) {
            Assert.assertTrue(entry instanceof CachingMessageTable.CacheMessageTableEntry);
        }
    }
    // Fetch with a transaction, with start time older than tx grace period / 2
    Transaction tx = new Transaction(10, 11, new long[0], new long[0], 11);
    long startTime = currentTimeMillis.get() - txGracePeriod / 2 - 1;
    try (CloseableIterator<MessageTable.Entry> iter = messageTable.fetch(metadata, startTime, 100, tx)) {
        List<MessageTable.Entry> entries = Lists.newArrayList(iter);
        // Should get three entries (7, 8, 9)
        Assert.assertEquals(3, entries.size());
        // The first entry should be from the table, while the last two entries (timestamp 8 and 9) should be
        // from cache (current time = 11, grace period = 3)
        Iterator<MessageTable.Entry> iterator = entries.iterator();
        Assert.assertFalse(iterator.next() instanceof CachingMessageTable.CacheMessageTableEntry);
        Assert.assertTrue(iterator.next() instanceof CachingMessageTable.CacheMessageTableEntry);
        Assert.assertTrue(iterator.next() instanceof CachingMessageTable.CacheMessageTableEntry);
    }
    // Fetch with a transaction, with start messageId publish time older than tx grace period / 2
    byte[] rawId = new byte[MessageId.RAW_ID_SIZE];
    MessageId.putRawId(startTime, (short) 0, 0L, (short) 0, rawId, 0);
    MessageId messageId = new MessageId(rawId);
    try (CloseableIterator<MessageTable.Entry> iter = messageTable.fetch(metadata, messageId, true, 100, tx)) {
        List<MessageTable.Entry> entries = Lists.newArrayList(iter);
        // Should get three entries (7, 8, 9)
        Assert.assertEquals(3, entries.size());
        // The first entry should be from the table, while the last two entries (timestamp 8 and 9) should be
        // from cache (current time = 11, grace period = 3)
        Iterator<MessageTable.Entry> iterator = entries.iterator();
        Assert.assertFalse(iterator.next() instanceof CachingMessageTable.CacheMessageTableEntry);
        Assert.assertTrue(iterator.next() instanceof CachingMessageTable.CacheMessageTableEntry);
        Assert.assertTrue(iterator.next() instanceof CachingMessageTable.CacheMessageTableEntry);
    }
}

Example 5 with TopicMetadata

use of co.cask.cdap.messaging.TopicMetadata in project cdap by caskdata.

the class LevelDBMetadataTableTest method testScanTopics.

@Test
public void testScanTopics() throws Exception {
    try (MetadataTable metadataTable = createMetadataTable()) {
        LevelDBMetadataTable table = (LevelDBMetadataTable) metadataTable;
        TopicMetadata t1 = new TopicMetadata(NamespaceId.CDAP.topic("t1"), ImmutableMap.of(TopicMetadata.TTL_KEY, "10", TopicMetadata.GENERATION_KEY, "1"));
        TopicMetadata t2 = new TopicMetadata(NamespaceId.SYSTEM.topic("t2"), ImmutableMap.of(TopicMetadata.TTL_KEY, "20", TopicMetadata.GENERATION_KEY, "1"));
        metadataTable.createTopic(t1);
        metadataTable.createTopic(t2);
        List<TopicId> allTopics = table.listTopics();
        Assert.assertEquals(2, allTopics.size());
        List<TopicMetadata> metadatas = new ArrayList<>();
        Iterators.addAll(metadatas, table.scanTopics());
        Assert.assertEquals(2, metadatas.size());
        allTopics = table.listTopics(NamespaceId.CDAP);
        Assert.assertEquals(1, allTopics.size());
        allTopics = table.listTopics(NamespaceId.SYSTEM);
        Assert.assertEquals(1, allTopics.size());
        metadataTable.deleteTopic(t1.getTopicId());
        metadatas.clear();
        Iterators.addAll(metadatas, table.scanTopics());
        Assert.assertEquals(2, metadatas.size());
        Assert.assertEquals(1, metadataTable.listTopics().size());
        Assert.assertEquals(1, metadataTable.listTopics(NamespaceId.SYSTEM).size());
        Assert.assertTrue(metadataTable.listTopics(NamespaceId.CDAP).isEmpty());
        metadataTable.deleteTopic(t2.getTopicId());
        metadatas.clear();
        Iterators.addAll(metadatas, table.scanTopics());
        for (TopicMetadata metadata : metadatas) {
            Assert.assertEquals(-1, metadata.getGeneration());
        }
        Assert.assertTrue(metadataTable.listTopics().isEmpty());
    }
}