Examples with PartitionedTopicMetadata org.apache.pulsar.common.partition.PartitionedTopicMetadata used on opensource projects

Example 6 with PartitionedTopicMetadata

use of org.apache.pulsar.common.partition.PartitionedTopicMetadata 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();
        }
    }
}

Example 7 with PartitionedTopicMetadata

use of org.apache.pulsar.common.partition.PartitionedTopicMetadata in project incubator-pulsar by apache.

the class PersistentTopicsBase method internalDeleteSubscription.

protected void internalDeleteSubscription(String subName, boolean authoritative) {
    if (topicName.isGlobal()) {
        validateGlobalNamespaceOwnership(namespaceName);
    }
    PartitionedTopicMetadata partitionMetadata = getPartitionedTopicMetadata(topicName, authoritative);
    if (partitionMetadata.partitions > 0) {
        try {
            for (int i = 0; i < partitionMetadata.partitions; i++) {
                pulsar().getAdminClient().persistentTopics().deleteSubscription(topicName.getPartition(i).toString(), subName);
            }
        } catch (Exception e) {
            if (e instanceof NotFoundException) {
                throw new RestException(Status.NOT_FOUND, "Subscription not found");
            } else if (e instanceof PreconditionFailedException) {
                throw new RestException(Status.PRECONDITION_FAILED, "Subscription has active connected consumers");
            } else {
                log.error("[{}] Failed to delete subscription {} {}", clientAppId(), topicName, subName, e);
                throw new RestException(e);
            }
        }
    } else {
        validateAdminOperationOnTopic(authoritative);
        Topic topic = getTopicReference(topicName);
        try {
            Subscription sub = topic.getSubscription(subName);
            checkNotNull(sub);
            sub.delete().get();
            log.info("[{}][{}] Deleted subscription {}", clientAppId(), topicName, subName);
        } catch (Exception e) {
            Throwable t = e.getCause();
            if (e instanceof NullPointerException) {
                throw new RestException(Status.NOT_FOUND, "Subscription not found");
            } else if (t instanceof SubscriptionBusyException) {
                throw new RestException(Status.PRECONDITION_FAILED, "Subscription has active connected consumers");
            } else {
                log.error("[{}] Failed to delete subscription {} {}", clientAppId(), topicName, subName, e);
                throw new RestException(t);
            }
        }
    }
}

Example 8 with PartitionedTopicMetadata

use of org.apache.pulsar.common.partition.PartitionedTopicMetadata in project incubator-pulsar by apache.

the class PersistentTopicsBase method internalTerminate.

protected MessageId internalTerminate(boolean authoritative) {
    if (topicName.isGlobal()) {
        validateGlobalNamespaceOwnership(namespaceName);
    }
    PartitionedTopicMetadata partitionMetadata = getPartitionedTopicMetadata(topicName, authoritative);
    if (partitionMetadata.partitions > 0) {
        throw new RestException(Status.METHOD_NOT_ALLOWED, "Termination of a partitioned topic is not allowed");
    }
    validateAdminOperationOnTopic(authoritative);
    Topic topic = getTopicReference(topicName);
    try {
        return ((PersistentTopic) topic).terminate().get();
    } catch (Exception exception) {
        log.error("[{}] Failed to terminated topic {}", clientAppId(), topicName, exception);
        throw new RestException(exception);
    }
}

Example 9 with PartitionedTopicMetadata

use of org.apache.pulsar.common.partition.PartitionedTopicMetadata in project incubator-pulsar by apache.

the class PersistentTopicsBase method internalExpireMessagesForAllSubscriptions.

protected void internalExpireMessagesForAllSubscriptions(int expireTimeInSeconds, boolean authoritative) {
    if (topicName.isGlobal()) {
        validateGlobalNamespaceOwnership(namespaceName);
    }
    PartitionedTopicMetadata partitionMetadata = getPartitionedTopicMetadata(topicName, authoritative);
    if (partitionMetadata.partitions > 0) {
        try {
            // expire messages for each partition topic
            for (int i = 0; i < partitionMetadata.partitions; i++) {
                pulsar().getAdminClient().persistentTopics().expireMessagesForAllSubscriptions(topicName.getPartition(i).toString(), expireTimeInSeconds);
            }
        } catch (Exception e) {
            log.error("[{}] Failed to expire messages up to {} on {} {}", clientAppId(), expireTimeInSeconds, topicName, e);
            throw new RestException(e);
        }
    } else {
        // validate ownership and redirect if current broker is not owner
        validateAdminOperationOnTopic(authoritative);
        PersistentTopic topic = (PersistentTopic) getTopicReference(topicName);
        topic.getReplicators().forEach((subName, replicator) -> {
            internalExpireMessages(subName, expireTimeInSeconds, authoritative);
        });
        topic.getSubscriptions().forEach((subName, subscriber) -> {
            internalExpireMessages(subName, expireTimeInSeconds, authoritative);
        });
    }
}

Example 10 with PartitionedTopicMetadata

use of org.apache.pulsar.common.partition.PartitionedTopicMetadata in project incubator-pulsar by apache.

the class PersistentTopicsBase method internalGetSubscriptions.

protected List<String> internalGetSubscriptions(boolean authoritative) {
    if (topicName.isGlobal()) {
        validateGlobalNamespaceOwnership(namespaceName);
    }
    List<String> subscriptions = Lists.newArrayList();
    PartitionedTopicMetadata partitionMetadata = getPartitionedTopicMetadata(topicName, authoritative);
    if (partitionMetadata.partitions > 0) {
        try {
            // get the subscriptions only from the 1st partition since all the other partitions will have the same
            // subscriptions
            subscriptions.addAll(pulsar().getAdminClient().persistentTopics().getSubscriptions(topicName.getPartition(0).toString()));
        } catch (Exception e) {
            throw new RestException(e);
        }
    } else {
        validateAdminOperationOnTopic(authoritative);
        Topic topic = getTopicReference(topicName);
        try {
            topic.getSubscriptions().forEach((subName, sub) -> subscriptions.add(subName));
        } catch (Exception e) {
            log.error("[{}] Failed to get list of subscriptions for {}", clientAppId(), topicName);
            throw new RestException(e);
        }
    }
    return subscriptions;
}