Examples with PersistentSubscription org.apache.pulsar.broker.service.persistent.PersistentSubscription used on opensource projects

Example 1 with PersistentSubscription

use of org.apache.pulsar.broker.service.persistent.PersistentSubscription in project incubator-pulsar by apache.

the class PersistentTopicsBase method internalCreateSubscription.

protected void internalCreateSubscription(String subscriptionName, MessageIdImpl messageId, boolean authoritative) {
    if (topicName.isGlobal()) {
        validateGlobalNamespaceOwnership(namespaceName);
    }
    log.info("[{}][{}] Creating subscription {} at message id {}", clientAppId(), topicName, subscriptionName, messageId);
    PartitionedTopicMetadata partitionMetadata = getPartitionedTopicMetadata(topicName, authoritative);
    try {
        if (partitionMetadata.partitions > 0) {
            // Create the subscription on each partition
            List<CompletableFuture<Void>> futures = Lists.newArrayList();
            PulsarAdmin admin = pulsar().getAdminClient();
            for (int i = 0; i < partitionMetadata.partitions; i++) {
                futures.add(admin.persistentTopics().createSubscriptionAsync(topicName.getPartition(i).toString(), subscriptionName, messageId));
            }
            FutureUtil.waitForAll(futures).join();
        } else {
            validateAdminOperationOnTopic(authoritative);
            PersistentTopic topic = (PersistentTopic) getOrCreateTopic(topicName);
            if (topic.getSubscriptions().containsKey(subscriptionName)) {
                throw new RestException(Status.CONFLICT, "Subscription already exists for topic");
            }
            PersistentSubscription subscription = (PersistentSubscription) topic.createSubscription(subscriptionName, InitialPosition.Latest).get();
            subscription.resetCursor(PositionImpl.get(messageId.getLedgerId(), messageId.getEntryId())).get();
            log.info("[{}][{}] Successfully created subscription {} at message id {}", clientAppId(), topicName, subscriptionName, messageId);
        }
    } catch (Exception e) {
        Throwable t = e.getCause();
        log.warn("[{}] [{}] Failed to create subscription {} at message id {}", clientAppId(), topicName, subscriptionName, messageId, e);
        if (t instanceof SubscriptionInvalidCursorPosition) {
            throw new RestException(Status.PRECONDITION_FAILED, "Unable to find position for position specified: " + t.getMessage());
        } else {
            throw new RestException(e);
        }
    }
}

Example 2 with PersistentSubscription

use of org.apache.pulsar.broker.service.persistent.PersistentSubscription in project incubator-pulsar by apache.

the class PersistentTopicsBase method internalSkipMessages.

protected void internalSkipMessages(String subName, int numMessages, boolean authoritative) {
    if (topicName.isGlobal()) {
        validateGlobalNamespaceOwnership(namespaceName);
    }
    PartitionedTopicMetadata partitionMetadata = getPartitionedTopicMetadata(topicName, authoritative);
    if (partitionMetadata.partitions > 0) {
        throw new RestException(Status.METHOD_NOT_ALLOWED, "Skip messages on a partitioned topic is not allowed");
    }
    validateAdminOperationOnTopic(authoritative);
    PersistentTopic topic = (PersistentTopic) getTopicReference(topicName);
    try {
        if (subName.startsWith(topic.replicatorPrefix)) {
            String remoteCluster = PersistentReplicator.getRemoteCluster(subName);
            PersistentReplicator repl = (PersistentReplicator) topic.getPersistentReplicator(remoteCluster);
            checkNotNull(repl);
            repl.skipMessages(numMessages).get();
        } else {
            PersistentSubscription sub = topic.getSubscription(subName);
            checkNotNull(sub);
            sub.skipMessages(numMessages).get();
        }
        log.info("[{}] Skipped {} messages on {} {}", clientAppId(), numMessages, topicName, subName);
    } catch (NullPointerException npe) {
        throw new RestException(Status.NOT_FOUND, "Subscription not found");
    } catch (Exception exception) {
        log.error("[{}] Failed to skip {} messages {} {}", clientAppId(), numMessages, topicName, subName, exception);
        throw new RestException(exception);
    }
}

Example 3 with PersistentSubscription

use of org.apache.pulsar.broker.service.persistent.PersistentSubscription in project incubator-pulsar by apache.

the class PersistentTopicsBase method internalResetCursorOnPosition.

protected void internalResetCursorOnPosition(String subName, boolean authoritative, MessageIdImpl messageId) {
    if (topicName.isGlobal()) {
        validateGlobalNamespaceOwnership(namespaceName);
    }
    log.info("[{}][{}] received reset cursor on subscription {} to position {}", clientAppId(), topicName, subName, messageId);
    PartitionedTopicMetadata partitionMetadata = getPartitionedTopicMetadata(topicName, authoritative);
    if (partitionMetadata.partitions > 0) {
        log.warn("[{}] Not supported operation on partitioned-topic {} {}", clientAppId(), topicName, subName);
        throw new RestException(Status.METHOD_NOT_ALLOWED, "Reset-cursor at position is not allowed for partitioned-topic");
    } else {
        validateAdminOperationOnTopic(authoritative);
        PersistentTopic topic = (PersistentTopic) getTopicReference(topicName);
        if (topic == null) {
            throw new RestException(Status.NOT_FOUND, "Topic not found");
        }
        try {
            PersistentSubscription sub = topic.getSubscription(subName);
            checkNotNull(sub);
            sub.resetCursor(PositionImpl.get(messageId.getLedgerId(), messageId.getEntryId())).get();
            log.info("[{}][{}] successfully reset cursor on subscription {} to position {}", clientAppId(), topicName, subName, messageId);
        } catch (Exception e) {
            Throwable t = e.getCause();
            log.warn("[{}] [{}] Failed to reset cursor on subscription {} to position {}", clientAppId(), topicName, subName, messageId, e);
            if (e instanceof NullPointerException) {
                throw new RestException(Status.NOT_FOUND, "Subscription not found");
            } else if (t instanceof SubscriptionInvalidCursorPosition) {
                throw new RestException(Status.PRECONDITION_FAILED, "Unable to find position for position specified: " + t.getMessage());
            } else {
                throw new RestException(e);
            }
        }
    }
}

Example 4 with PersistentSubscription

use of org.apache.pulsar.broker.service.persistent.PersistentSubscription in project incubator-pulsar by apache.

the class PersistentTopicsBase method internalExpireMessages.

protected void internalExpireMessages(String subName, int expireTimeInSeconds, boolean authoritative) {
    if (topicName.isGlobal()) {
        validateGlobalNamespaceOwnership(namespaceName);
    }
    PartitionedTopicMetadata partitionMetadata = getPartitionedTopicMetadata(topicName, authoritative);
    if (partitionMetadata.partitions > 0) {
        // expire messages for each partition topic
        try {
            for (int i = 0; i < partitionMetadata.partitions; i++) {
                pulsar().getAdminClient().persistentTopics().expireMessages(topicName.getPartition(i).toString(), subName, expireTimeInSeconds);
            }
        } catch (Exception e) {
            throw new RestException(e);
        }
    } else {
        // validate ownership and redirect if current broker is not owner
        validateAdminOperationOnTopic(authoritative);
        if (!(getTopicReference(topicName) instanceof PersistentTopic)) {
            log.error("[{}] Not supported operation of non-persistent topic {} {}", clientAppId(), topicName, subName);
            throw new RestException(Status.METHOD_NOT_ALLOWED, "Expire messages on a non-persistent topic is not allowed");
        }
        PersistentTopic topic = (PersistentTopic) getTopicReference(topicName);
        try {
            if (subName.startsWith(topic.replicatorPrefix)) {
                String remoteCluster = PersistentReplicator.getRemoteCluster(subName);
                PersistentReplicator repl = (PersistentReplicator) topic.getPersistentReplicator(remoteCluster);
                checkNotNull(repl);
                repl.expireMessages(expireTimeInSeconds);
            } else {
                PersistentSubscription sub = topic.getSubscription(subName);
                checkNotNull(sub);
                sub.expireMessages(expireTimeInSeconds);
            }
            log.info("[{}] Message expire started up to {} on {} {}", clientAppId(), expireTimeInSeconds, topicName, subName);
        } catch (NullPointerException npe) {
            throw new RestException(Status.NOT_FOUND, "Subscription not found");
        } catch (Exception exception) {
            log.error("[{}] Failed to expire messages up to {} on {} with subscription {} {}", clientAppId(), expireTimeInSeconds, topicName, subName, exception);
            throw new RestException(exception);
        }
    }
}

Example 5 with PersistentSubscription

use of org.apache.pulsar.broker.service.persistent.PersistentSubscription in project incubator-pulsar by apache.

the class PersistentTopicsBase method internalPeekNthMessage.

protected Response internalPeekNthMessage(String subName, int messagePosition, boolean authoritative) {
    if (topicName.isGlobal()) {
        validateGlobalNamespaceOwnership(namespaceName);
    }
    PartitionedTopicMetadata partitionMetadata = getPartitionedTopicMetadata(topicName, authoritative);
    if (partitionMetadata.partitions > 0) {
        throw new RestException(Status.METHOD_NOT_ALLOWED, "Peek messages on a partitioned topic is not allowed");
    }
    validateAdminOperationOnTopic(authoritative);
    if (!(getTopicReference(topicName) instanceof PersistentTopic)) {
        log.error("[{}] Not supported operation of non-persistent topic {} {}", clientAppId(), topicName, subName);
        throw new RestException(Status.METHOD_NOT_ALLOWED, "Skip messages on a non-persistent topic is not allowed");
    }
    PersistentTopic topic = (PersistentTopic) getTopicReference(topicName);
    PersistentReplicator repl = null;
    PersistentSubscription sub = null;
    Entry entry = null;
    if (subName.startsWith(topic.replicatorPrefix)) {
        repl = getReplicatorReference(subName, topic);
    } else {
        sub = (PersistentSubscription) getSubscriptionReference(subName, topic);
    }
    try {
        if (subName.startsWith(topic.replicatorPrefix)) {
            entry = repl.peekNthMessage(messagePosition).get();
        } else {
            entry = sub.peekNthMessage(messagePosition).get();
        }
        checkNotNull(entry);
        PositionImpl pos = (PositionImpl) entry.getPosition();
        ByteBuf metadataAndPayload = entry.getDataBuffer();
        // moves the readerIndex to the payload
        MessageMetadata metadata = Commands.parseMessageMetadata(metadataAndPayload);
        ResponseBuilder responseBuilder = Response.ok();
        responseBuilder.header("X-Pulsar-Message-ID", pos.toString());
        for (KeyValue keyValue : metadata.getPropertiesList()) {
            responseBuilder.header("X-Pulsar-PROPERTY-" + keyValue.getKey(), keyValue.getValue());
        }
        if (metadata.hasPublishTime()) {
            responseBuilder.header("X-Pulsar-publish-time", DateFormatter.format(metadata.getPublishTime()));
        }
        if (metadata.hasEventTime()) {
            responseBuilder.header("X-Pulsar-event-time", DateFormatter.format(metadata.getEventTime()));
        }
        if (metadata.hasNumMessagesInBatch()) {
            responseBuilder.header("X-Pulsar-num-batch-message", metadata.getNumMessagesInBatch());
        }
        // Decode if needed
        CompressionCodec codec = CompressionCodecProvider.getCompressionCodec(metadata.getCompression());
        ByteBuf uncompressedPayload = codec.decode(metadataAndPayload, metadata.getUncompressedSize());
        // Copy into a heap buffer for output stream compatibility
        ByteBuf data = PooledByteBufAllocator.DEFAULT.heapBuffer(uncompressedPayload.readableBytes(), uncompressedPayload.readableBytes());
        data.writeBytes(uncompressedPayload);
        uncompressedPayload.release();
        StreamingOutput stream = new StreamingOutput() {

            @Override
            public void write(OutputStream output) throws IOException, WebApplicationException {
                output.write(data.array(), data.arrayOffset(), data.readableBytes());
                data.release();
            }
        };
        return responseBuilder.entity(stream).build();
    } catch (NullPointerException npe) {
        throw new RestException(Status.NOT_FOUND, "Message not found");
    } catch (Exception exception) {
        log.error("[{}] Failed to get message at position {} from {} {}", clientAppId(), messagePosition, topicName, subName, exception);
        throw new RestException(exception);
    } finally {
        if (entry != null) {
            entry.release();
        }
    }
}