[improve][client] Pulsar client supports multi-topic messageId deserialization to ack messages

Author: rdhabalia

pulsar-broker/src/test/java/org/apache/pulsar/client/api/MultiTopicsConsumerTest.java

@@ -24,10 +24,13 @@
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.testng.Assert.assertFalse;
+import static org.testng.Assert.assertNull;
 import static org.testng.Assert.assertEquals;
 import static org.testng.Assert.assertTrue;
 
 import com.google.common.collect.Lists;
+import com.google.common.collect.Range;
+
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
@@ -42,6 +45,9 @@
 import java.util.stream.Collectors;
 import java.util.stream.IntStream;
 import lombok.Cleanup;
+
+import org.apache.bookkeeper.mledger.impl.PositionImpl;
+import org.apache.pulsar.broker.service.persistent.PersistentTopic;
 import org.apache.pulsar.client.admin.PulsarAdminException;
 import org.apache.pulsar.client.impl.ClientBuilderImpl;
 import org.apache.pulsar.client.impl.ConsumerImpl;
@@ -351,4 +357,66 @@ public int choosePartition(Message<?> msg, TopicMetadata metadata) {
         }
         consumer.close();
     }
+
+    /**
+     * It tests acking of messageId created from byte[] and validates client acks messages successfully.
+     * @throws Exception
+     */
+    @Test
+    public void testMultiTopicAckWithByteMessageId() throws Exception {
+        String topicName = newTopicName();
+        int numPartitions = 2;
+        int numMessages = 100000;
+        admin.topics().createPartitionedTopic(topicName, numPartitions);
+
+        Producer<Long>[] producers = new Producer[numPartitions];
+
+        for (int i = 0; i < numPartitions; i++) {
+            producers[i] = pulsarClient.newProducer(Schema.INT64)
+                    // produce to each partition directly so that order can be maintained in sending
+                    .topic(topicName + "-partition-" + i).enableBatching(true).maxPendingMessages(30000)
+                    .maxPendingMessagesAcrossPartitions(60000).batchingMaxMessages(10000)
+                    .batchingMaxPublishDelay(5, TimeUnit.SECONDS).batchingMaxBytes(4 * 1024 * 1024)
+                    .blockIfQueueFull(true).create();
+        }
+
+        @Cleanup
+        Consumer<Long> consumer = pulsarClient.newConsumer(Schema.INT64)
+                // consume on the partitioned topic
+                .topic(topicName).subscriptionInitialPosition(SubscriptionInitialPosition.Earliest)
+                .receiverQueueSize(numMessages).subscriptionName(methodName).subscribe();
+
+        // produce sequence numbers to each partition topic
+        long sequenceNumber = 1L;
+        for (int i = 0; i < numMessages; i++) {
+            for (Producer<Long> producer : producers) {
+                producer.newMessage().value(sequenceNumber).sendAsync();
+            }
+            sequenceNumber++;
+        }
+        for (Producer<Long> producer : producers) {
+            producer.flush();
+            producer.close();
+        }
+
+        // receive and validate sequences in the partitioned topic
+        Map<String, AtomicLong> receivedSequences = new HashMap<>();
+        int receivedCount = 0;
+        while (receivedCount < numPartitions * numMessages) {
+            Message<Long> message = consumer.receiveAsync().get(5, TimeUnit.SECONDS);
+            byte[] idByte = message.getMessageId().toByteArray();
+            MessageId id = MessageId.fromByteArray(idByte);
+            consumer.acknowledge(id);
+            receivedCount++;
+            AtomicLong receivedSequenceCounter = receivedSequences.computeIfAbsent(message.getTopicName(),
+                    k -> new AtomicLong(1L));
+            Assert.assertEquals(message.getValue().longValue(), receivedSequenceCounter.getAndIncrement());
+        }
+        Assert.assertEquals(numPartitions * numMessages, receivedCount);
+        consumer.close();
+
+        PersistentTopic topic = (PersistentTopic) pulsar.getBrokerService().getTopic(topicName + "-partition-0", false).get().get();
+        Range<PositionImpl> range = topic.getManagedLedger().getCursors().iterator().next().getLastIndividualDeletedRange();
+        assertNull(range);
+    }
 }

pulsar-client/src/main/java/org/apache/pulsar/client/impl/MessageIdImpl.java

@@ -26,6 +26,7 @@
 import java.io.IOException;
 import java.util.Objects;
 import javax.annotation.Nonnull;
+import org.apache.commons.lang3.StringUtils;
 import org.apache.pulsar.client.api.MessageId;
 import org.apache.pulsar.client.api.TopicMessageId;
 import org.apache.pulsar.common.api.proto.MessageIdData;
@@ -96,7 +97,7 @@ public static MessageId fromByteArray(byte[] data) throws IOException {
             throw new IOException(e);
         }
 
-        MessageIdImpl messageId;
+        MessageId messageId;
         if (idData.hasBatchIndex()) {
             if (idData.hasBatchSize()) {
                 messageId = new BatchMessageIdImpl(idData.getLedgerId(), idData.getEntryId(), idData.getPartition(),
@@ -115,6 +116,11 @@ public static MessageId fromByteArray(byte[] data) throws IOException {
             messageId = new MessageIdImpl(idData.getLedgerId(), idData.getEntryId(), idData.getPartition());
         }
 
+        if (idData.hasTopicName()) {
+            String topicName = idData.getTopicName();
+            messageId = new TopicMessageIdImpl(topicName, topicName, messageId);
+        }
+
         return messageId;
     }
 
@@ -193,7 +199,14 @@ protected MessageIdData writeMessageIdData(MessageIdData msgId, int batchIndex,
 
     // batchIndex is -1 if message is non-batched message and has the batchIndex for a batch message
     protected byte[] toByteArray(int batchIndex, int batchSize) {
+        return toByteArray(batchIndex, batchSize, null);
+    }
+
+    protected byte[] toByteArray(int batchIndex, int batchSize, String topicName) {
         MessageIdData msgId = writeMessageIdData(null, batchIndex, batchSize);
+        if (StringUtils.isNotBlank(topicName)) {
+            msgId.setTopicName(topicName);
+        }
 
         int size = msgId.getSerializedSize();
         ByteBuf serialized = Unpooled.buffer(size, size);
@@ -205,7 +218,7 @@ protected byte[] toByteArray(int batchIndex, int batchSize) {
     @Override
     public byte[] toByteArray() {
         // there is no message batch so we pass -1
-        return toByteArray(-1, 0);
+        return toByteArray(-1, 0, null);
     }
 
     @Override

pulsar-client/src/main/java/org/apache/pulsar/client/impl/TopicMessageIdImpl.java

@@ -63,7 +63,11 @@ public String toString() {
 
     @Override
     public byte[] toByteArray() {
-        return messageId.toByteArray();
+        if (messageId instanceof MessageIdImpl) {
+            return ((MessageIdImpl) messageId).toByteArray(-1, 0, topicPartitionName);
+        } else {
+            return messageId.toByteArray();
+        }
     }
 
     @Override

pulsar-common/src/main/proto/PulsarApi.proto

@@ -62,9 +62,9 @@ message MessageIdData {
     optional int32 batch_index = 4 [default = -1];
     repeated int64 ack_set = 5;
     optional int32 batch_size = 6;
-
     // For the chunk message id, we need to specify the first chunk message id.
     optional MessageIdData first_chunk_message_id = 7;
+    optional string topicName = 8;
 }
 
 message KeyValue {