315157973 commented on a change in pull request #8125: URL: https://github.com/apache/pulsar/pull/8125#discussion_r702850548
########## File path: pulsar-broker/src/main/java/org/apache/pulsar/broker/rest/Topics.java ########## @@ -0,0 +1,133 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.pulsar.broker.rest; + +import io.swagger.annotations.Api; +import io.swagger.annotations.ApiOperation; +import io.swagger.annotations.ApiParam; +import io.swagger.annotations.ApiResponse; +import io.swagger.annotations.ApiResponses; +import javax.ws.rs.Consumes; +import javax.ws.rs.DefaultValue; +import javax.ws.rs.Encoded; +import javax.ws.rs.POST; +import javax.ws.rs.Path; +import javax.ws.rs.PathParam; +import javax.ws.rs.Produces; +import javax.ws.rs.QueryParam; +import javax.ws.rs.container.AsyncResponse; +import javax.ws.rs.container.Suspended; +import javax.ws.rs.core.MediaType; +import org.apache.pulsar.websocket.data.ProducerMessages; + +@Path("/") +@Consumes(MediaType.APPLICATION_JSON) +@Produces(MediaType.APPLICATION_JSON) +@Api(value = "/persistent", description = "Apis for produce,consume and ack message on topics.", tags = "topics") +public class Topics extends TopicsBase { + + @POST + @Path("/persistent/{tenant}/{namespace}/{topic}") + @ApiOperation(value = "Produce message to a persistent topic.", response = String.class, responseContainer = "List") + @ApiResponses(value = { + @ApiResponse(code = 404, message = "tenant/namespace/topic doesn't exit"), + @ApiResponse(code = 412, message = "Namespace name is not valid"), + @ApiResponse(code = 500, message = "Internal server error") }) + public void produceOnPersistentTopic(@Suspended final AsyncResponse asyncResponse, + @ApiParam(value = "Specify the tenant", required = true) + @PathParam("tenant") String tenant, + @ApiParam(value = "Specify the namespace", required = true) + @PathParam("namespace") String namespace, + @ApiParam(value = "Specify topic name", required = true) + @PathParam("topic") @Encoded String encodedTopic, + @QueryParam("authoritative") @DefaultValue("false") boolean authoritative, + ProducerMessages producerMessages) { + validateTopicName(tenant, namespace, encodedTopic); + publishMessages(asyncResponse, producerMessages, authoritative); + } + + @POST + @Path("/persistent/{tenant}/{namespace}/{topic}/partitions/{partition}") + @ApiOperation(value = "Produce message to a partition of a persistent topic.", + response = String.class, responseContainer = "List") + @ApiResponses(value = { + @ApiResponse(code = 404, message = "tenant/namespace/topic doesn't exit"), + @ApiResponse(code = 412, message = "Namespace name is not valid"), + @ApiResponse(code = 500, message = "Internal server error") }) + public void produceOnPersistentTopicPartition(@Suspended final AsyncResponse asyncResponse, + @ApiParam(value = "Specify the tenant", required = true) + @PathParam("tenant") String tenant, + @ApiParam(value = "Specify the namespace", required = true) + @PathParam("namespace") String namespace, + @ApiParam(value = "Specify topic name", required = true) + @PathParam("topic") @Encoded String encodedTopic, + @ApiParam(value = "Specify topic partition", required = true) + @PathParam("partition") int partition, + @QueryParam("authoritative") @DefaultValue("false") boolean authoritative, + ProducerMessages producerMessages) { + validateTopicName(tenant, namespace, encodedTopic); + publishMessagesToPartition(asyncResponse, producerMessages, authoritative, partition); + } + + @POST + @Path("/non-persistent/{tenant}/{namespace}/{topic}") + @ApiOperation(value = "Produce message to a persistent topic.", response = String.class, responseContainer = "List") + @ApiResponses(value = { + @ApiResponse(code = 404, message = "tenant/namespace/topic doesn't exit"), + @ApiResponse(code = 412, message = "Namespace name is not valid"), + @ApiResponse(code = 500, message = "Internal server error") }) + public void produceOnNonPersistentTopic(@Suspended final AsyncResponse asyncResponse, + @ApiParam(value = "Specify the tenant", required = true) + @PathParam("tenant") String tenant, + @ApiParam(value = "Specify the namespace", required = true) + @PathParam("namespace") String namespace, + @ApiParam(value = "Specify topic name", required = true) + @PathParam("topic") @Encoded String encodedTopic, + @QueryParam("authoritative") @DefaultValue("false") + boolean authoritative, + ProducerMessages producerMessages) { + validateTopicName(tenant, namespace, encodedTopic); + publishMessages(asyncResponse, producerMessages, authoritative); + } + + @POST + @Path("/non-persistent/{tenant}/{namespace}/{topic}/partitions/{partition}") + @ApiOperation(value = "Produce message to a partition of a persistent topic.", + response = String.class, responseContainer = "List") + @ApiResponses(value = { + @ApiResponse(code = 404, message = "tenant/namespace/topic doesn't exit"), + @ApiResponse(code = 412, message = "Namespace name is not valid"), + @ApiResponse(code = 500, message = "Internal server error") }) + public void produceOnNonPersistentTopicPartition(@Suspended final AsyncResponse asyncResponse, + @ApiParam(value = "Specify the tenant", required = true) + @PathParam("tenant") String tenant, + @ApiParam(value = "Specify the namespace", required = true) + @PathParam("namespace") String namespace, + @ApiParam(value = "Specify topic name", required = true) + @PathParam("topic") @Encoded String encodedTopic, + @ApiParam(value = "Specify topic partition", required = true) + @PathParam("partition") int partition, + @QueryParam("authoritative") @DefaultValue("false") + boolean authoritative, + ProducerMessages producerMessages) { + validateTopicName(tenant, namespace, encodedTopic); + publishMessagesToPartition(asyncResponse, producerMessages, authoritative, partition); Review comment: There seems to be a security issue, can I send messages to any topic? ########## File path: pulsar-broker/src/main/java/org/apache/pulsar/broker/rest/TopicsBase.java ########## @@ -0,0 +1,733 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.pulsar.broker.rest; + +import io.netty.buffer.ByteBuf; +import java.io.IOException; +import java.net.URI; +import java.net.URISyntaxException; +import java.nio.ByteBuffer; +import java.sql.Time; +import java.sql.Timestamp; +import java.text.DateFormat; +import java.time.Instant; +import java.time.LocalDate; +import java.time.LocalDateTime; +import java.time.LocalTime; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Base64; +import java.util.Collections; +import java.util.List; +import java.util.Optional; +import java.util.concurrent.CompletableFuture; +import java.util.stream.Collectors; +import javax.ws.rs.container.AsyncResponse; +import javax.ws.rs.core.Response; +import javax.ws.rs.core.Response.Status; +import lombok.extern.slf4j.Slf4j; +import org.apache.bookkeeper.mledger.ManagedLedgerException; +import org.apache.bookkeeper.mledger.impl.PositionImpl; +import org.apache.commons.lang3.tuple.Pair; +import org.apache.pulsar.broker.admin.impl.PersistentTopicsBase; +import org.apache.pulsar.broker.lookup.LookupResult; +import org.apache.pulsar.broker.namespace.LookupOptions; +import org.apache.pulsar.broker.service.BrokerServiceException; +import org.apache.pulsar.broker.service.schema.SchemaRegistry; +import org.apache.pulsar.broker.service.schema.exceptions.SchemaException; +import org.apache.pulsar.broker.web.RestException; +import org.apache.pulsar.client.api.CompressionType; +import org.apache.pulsar.client.api.Message; +import org.apache.pulsar.client.api.MessageId; +import org.apache.pulsar.client.api.PulsarClientException; +import org.apache.pulsar.client.api.Schema; +import org.apache.pulsar.client.impl.MessageIdImpl; +import org.apache.pulsar.client.impl.MessageImpl; +import org.apache.pulsar.client.impl.schema.AutoConsumeSchema; +import org.apache.pulsar.client.impl.schema.KeyValueSchemaImpl; +import org.apache.pulsar.client.impl.schema.KeyValueSchemaInfo; +import org.apache.pulsar.client.impl.schema.SchemaInfoImpl; +import org.apache.pulsar.client.impl.schema.StringSchema; +import org.apache.pulsar.client.impl.schema.generic.GenericJsonRecord; +import org.apache.pulsar.common.api.proto.MessageMetadata; +import org.apache.pulsar.common.compression.CompressionCodecProvider; +import org.apache.pulsar.common.naming.TopicName; +import org.apache.pulsar.common.partition.PartitionedTopicMetadata; +import org.apache.pulsar.common.protocol.Commands; +import org.apache.pulsar.common.protocol.schema.SchemaData; +import org.apache.pulsar.common.protocol.schema.SchemaVersion; +import org.apache.pulsar.common.schema.KeyValueEncodingType; +import org.apache.pulsar.common.schema.LongSchemaVersion; +import org.apache.pulsar.common.schema.SchemaInfo; +import org.apache.pulsar.common.schema.SchemaType; +import org.apache.pulsar.common.util.FutureUtil; +import org.apache.pulsar.common.util.ObjectMapperFactory; +import org.apache.pulsar.common.util.collections.ConcurrentOpenHashSet; +import org.apache.pulsar.websocket.data.ProducerAck; +import org.apache.pulsar.websocket.data.ProducerAcks; +import org.apache.pulsar.websocket.data.ProducerMessage; +import org.apache.pulsar.websocket.data.ProducerMessages; + +/** + * Contains methods used by REST api to producer/consumer/read messages to/from pulsar topics. + */ +@Slf4j +public class TopicsBase extends PersistentTopicsBase { + + private static String defaultProducerName = "RestProducer"; + + // Publish message to a topic, can be partitioned or non-partitioned + protected void publishMessages(AsyncResponse asyncResponse, ProducerMessages request, boolean authoritative) { + String topic = topicName.getPartitionedTopicName(); + try { + if (pulsar().getBrokerService().getOwningTopics().containsKey(topic) + || !findOwnerBrokerForTopic(authoritative, asyncResponse)) { + // If we've done look up or or after look up this broker owns some of the partitions + // then proceed to publish message else asyncResponse will be complete by look up. + addOrGetSchemaForTopic(getSchemaData(request.getKeySchema(), request.getValueSchema()), + request.getSchemaVersion() == -1 ? null : new LongSchemaVersion(request.getSchemaVersion())) + .thenAccept(schemaMeta -> { + // Both schema version and schema data are necessary. + if (schemaMeta.getLeft() != null && schemaMeta.getRight() != null) { + internalPublishMessages(topicName, request, pulsar().getBrokerService() + .getOwningTopics().get(topic).values(), asyncResponse, + AutoConsumeSchema.getSchema(schemaMeta.getLeft().toSchemaInfo()), + schemaMeta.getRight()); + } else { + asyncResponse.resume(new RestException(Status.INTERNAL_SERVER_ERROR, + "Fail to add or retrieve schema.")); + } + }).exceptionally(e -> { + if (log.isDebugEnabled()) { + log.debug("Fail to publish message: " + e.getMessage()); + } + asyncResponse.resume(new RestException(Status.INTERNAL_SERVER_ERROR, "Fail to publish message:" + + e.getMessage())); + return null; + }); + } + } catch (Exception e) { + asyncResponse.resume(new RestException(Status.INTERNAL_SERVER_ERROR, "Fail to publish message: " + + e.getMessage())); + } + } + + // Publish message to single partition of a partitioned topic. + protected void publishMessagesToPartition(AsyncResponse asyncResponse, ProducerMessages request, + boolean authoritative, int partition) { + if (topicName.isPartitioned()) { + asyncResponse.resume(new RestException(Status.BAD_REQUEST, "Topic name can't contain " + + "'-partition-' suffix.")); + } + String topic = topicName.getPartitionedTopicName(); + try { + // If broker owns the partition then proceed to publish message, else do look up. + if ((pulsar().getBrokerService().getOwningTopics().containsKey(topic) + && pulsar().getBrokerService().getOwningTopics().get(topic) + .contains(partition)) + || !findOwnerBrokerForTopic(authoritative, asyncResponse)) { + addOrGetSchemaForTopic(getSchemaData(request.getKeySchema(), request.getValueSchema()), + request.getSchemaVersion() == -1 ? null : new LongSchemaVersion(request.getSchemaVersion())) + .thenAccept(schemaMeta -> { + // Both schema version and schema data are necessary. + if (schemaMeta.getLeft() != null && schemaMeta.getRight() != null) { + internalPublishMessagesToPartition(topicName, request, partition, asyncResponse, + AutoConsumeSchema.getSchema(schemaMeta.getLeft().toSchemaInfo()), + schemaMeta.getRight()); + } else { + asyncResponse.resume(new RestException(Status.INTERNAL_SERVER_ERROR, + "Fail to add or retrieve schema.")); + } + }).exceptionally(e -> { + if (log.isDebugEnabled()) { + log.debug("Fail to publish message to single partition: " + e.getLocalizedMessage()); + } + asyncResponse.resume(new RestException(Status.INTERNAL_SERVER_ERROR, "Fail to publish message" + + "to single partition: " + + e.getMessage())); + return null; + }); + } + } catch (Exception e) { + asyncResponse.resume(new RestException(Status.INTERNAL_SERVER_ERROR, "Fail to publish message: " + + e.getMessage())); + } + } + + private void internalPublishMessagesToPartition(TopicName topicName, ProducerMessages request, + int partition, AsyncResponse asyncResponse, + Schema schema, SchemaVersion schemaVersion) { + try { + String producerName = (null == request.getProducerName() || request.getProducerName().isEmpty()) + ? defaultProducerName : request.getProducerName(); + List<Message> messages = buildMessage(request, schema, producerName, topicName); + List<CompletableFuture<PositionImpl>> publishResults = new ArrayList<>(); + List<ProducerAck> produceMessageResults = new ArrayList<>(); + for (int index = 0; index < messages.size(); index++) { + ProducerAck produceMessageResult = new ProducerAck(); + produceMessageResult.setMessageId(partition + ""); + produceMessageResults.add(produceMessageResult); + publishResults.add(publishSingleMessageToPartition(topicName.getPartition(partition).toString(), + messages.get(index))); + } + FutureUtil.waitForAll(publishResults).thenRun(() -> { + processPublishMessageResults(produceMessageResults, publishResults); + asyncResponse.resume(Response.ok().entity(new ProducerAcks(produceMessageResults, + ((LongSchemaVersion) schemaVersion).getVersion())).build()); + }).exceptionally(e -> { + // Some message may published successfully, so till return ok with result for each individual message. + processPublishMessageResults(produceMessageResults, publishResults); + asyncResponse.resume(Response.ok().entity(new ProducerAcks(produceMessageResults, + ((LongSchemaVersion) schemaVersion).getVersion())).build()); + return null; + }); + } catch (Exception e) { + if (log.isDebugEnabled()) { + log.debug("Fail publish messages to single partition with rest produce message " + + "request for topic {}: {} ", topicName, e.getCause()); + } + asyncResponse.resume(new RestException(Status.INTERNAL_SERVER_ERROR, e.getMessage())); + } + } + + private void internalPublishMessages(TopicName topicName, ProducerMessages request, + List<Integer> partitionIndexes, + AsyncResponse asyncResponse, Schema schema, + SchemaVersion schemaVersion) { + if (partitionIndexes.size() < 1) { + asyncResponse.resume(new RestException(Status.INTERNAL_SERVER_ERROR, + new BrokerServiceException.TopicNotFoundException("Topic not owned by current broker."))); + } + try { + String producerName = (null == request.getProducerName() || request.getProducerName().isEmpty()) + ? defaultProducerName : request.getProducerName(); + List<Message> messages = buildMessage(request, schema, producerName, topicName); + List<CompletableFuture<PositionImpl>> publishResults = new ArrayList<>(); + List<ProducerAck> produceMessageResults = new ArrayList<>(); + // Try to publish messages to all partitions this broker owns in round robin mode. + for (int index = 0; index < messages.size(); index++) { + ProducerAck produceMessageResult = new ProducerAck(); + produceMessageResult.setMessageId(partitionIndexes.get(index % (int) partitionIndexes.size()) + ""); + produceMessageResults.add(produceMessageResult); + publishResults.add(publishSingleMessageToPartition(topicName.getPartition(partitionIndexes + .get(index % (int) partitionIndexes.size())).toString(), + messages.get(index))); + } + FutureUtil.waitForAll(publishResults).thenRun(() -> { + processPublishMessageResults(produceMessageResults, publishResults); + asyncResponse.resume(Response.ok().entity(new ProducerAcks(produceMessageResults, + ((LongSchemaVersion) schemaVersion).getVersion())).build()); + }).exceptionally(e -> { + // Some message may published successfully, so till return ok with result for each individual message. + processPublishMessageResults(produceMessageResults, publishResults); + asyncResponse.resume(Response.ok().entity(new ProducerAcks(produceMessageResults, + ((LongSchemaVersion) schemaVersion).getVersion())).build()); + return null; + }); + } catch (Exception e) { + if (log.isDebugEnabled()) { + log.debug("Fail to publish messages with rest produce message request for topic {}: {} ", + topicName, e.getCause()); + } + asyncResponse.resume(new RestException(Status.INTERNAL_SERVER_ERROR, e.getMessage())); + } + } + + private CompletableFuture<PositionImpl> publishSingleMessageToPartition(String topic, Message message) { + CompletableFuture<PositionImpl> publishResult = new CompletableFuture<>(); + pulsar().getBrokerService().getTopic(topic, false) + .thenAccept(t -> { + // TODO: Check message backlog and fail if backlog too large. + if (!t.isPresent()) { + // Topic not found, and remove from owning partition list. + publishResult.completeExceptionally(new BrokerServiceException.TopicNotFoundException("Topic not " + + "owned by current broker.")); + TopicName topicName = TopicName.get(topic); + pulsar().getBrokerService().getOwningTopics().get(topicName.getPartitionedTopicName()) + .remove(topicName.getPartitionIndex()); + } else { + try { + t.get().publishMessage(messageToByteBuf(message), + RestMessagePublishContext.get(publishResult, t.get(), System.nanoTime())); + } catch (Exception e) { + if (log.isDebugEnabled()) { + log.debug("Fail to publish single messages to topic {}: {} ", + topicName, e.getCause()); + } + publishResult.completeExceptionally(e); + } + } + }); + + return publishResult; + } + + // Process results for all message publishing attempts + private void processPublishMessageResults(List<ProducerAck> produceMessageResults, + List<CompletableFuture<PositionImpl>> publishResults) { + // process publish message result + for (int index = 0; index < publishResults.size(); index++) { + try { + PositionImpl position = publishResults.get(index).get(); + MessageId messageId = new MessageIdImpl(position.getLedgerId(), position.getEntryId(), + Integer.parseInt(produceMessageResults.get(index).getMessageId())); + produceMessageResults.get(index).setMessageId(messageId.toString()); + } catch (Exception e) { + if (log.isDebugEnabled()) { + log.debug("Fail publish [{}] message with rest produce message request for topic {}: {} ", + index, topicName); + } + if (e instanceof BrokerServiceException.TopicNotFoundException) { + // Topic ownership might changed, force to look up again. + pulsar().getBrokerService().getOwningTopics().remove(topicName.getPartitionedTopicName()); + } + extractException(e, produceMessageResults.get(index)); + } + } + } + + // Return error code depends on exception we got indicating if client should retry with same broker. + private void extractException(Exception e, ProducerAck produceMessageResult) { + if (!(e instanceof BrokerServiceException.TopicFencedException && e instanceof ManagedLedgerException)) { + produceMessageResult.setErrorCode(2); + } else { + produceMessageResult.setErrorCode(1); + } + produceMessageResult.setErrorMsg(e.getMessage()); + } + + // Look up topic owner for given topic. Return if asyncResponse has been completed + // which indicating redirect or exception. + private boolean findOwnerBrokerForTopic(boolean authoritative, AsyncResponse asyncResponse) { + PartitionedTopicMetadata metadata = internalGetPartitionedMetadata(authoritative, false); + List<String> redirectAddresses = Collections.synchronizedList(new ArrayList<>()); + CompletableFuture<Boolean> future = new CompletableFuture<>(); + List<CompletableFuture<Void>> lookupFutures = new ArrayList<>(); + if (!topicName.isPartitioned() && metadata.partitions > 1) { + // Partitioned topic with multiple partitions, need to do look up for each partition. + for (int index = 0; index < metadata.partitions; index++) { + lookupFutures.add(lookUpBrokerForTopic(topicName.getPartition(index), + authoritative, redirectAddresses)); + } + } else { + // Non-partitioned topic or specific topic partition. + lookupFutures.add(lookUpBrokerForTopic(topicName, authoritative, redirectAddresses)); + } + + FutureUtil.waitForAll(lookupFutures) + .thenRun(() -> { + processLookUpResult(redirectAddresses, asyncResponse, future); + }).exceptionally(e -> { + processLookUpResult(redirectAddresses, asyncResponse, future); + return null; + }); + try { + return future.get(); + } catch (Exception e) { + if (log.isDebugEnabled()) { + log.debug("Fail to lookup topic for rest produce message request for topic {}.", topicName.toString()); + } + if (!asyncResponse.isDone()) { + asyncResponse.resume(new RestException(Status.INTERNAL_SERVER_ERROR, "Internal error: " + + e.getMessage())); + } + return true; + } + } + + private void processLookUpResult(List<String> redirectAddresses, AsyncResponse asyncResponse, + CompletableFuture<Boolean> future) { + // Current broker doesn't own the topic or any partition of the topic, redirect client to a broker + // that own partition of the topic or know who own partition of the topic. + if (!pulsar().getBrokerService().getOwningTopics().containsKey(topicName.getPartitionedTopicName())) { + if (redirectAddresses.isEmpty()) { + // No broker to redirect, means look up for some partitions failed, + // client should retry with other brokers. + asyncResponse.resume(new RestException(Status.NOT_FOUND, "Can't find owner of given topic.")); + future.complete(true); + } else { + // Redirect client to other broker owns the topic or know which broker own the topic. + try { + if (log.isDebugEnabled()) { + log.debug("Redirect rest produce request for topic {} from {} to {}.", + topicName, pulsar().getWebServiceAddress(), redirectAddresses.get(0)); + } + URI redirectURI = new URI(String.format("%s%s", redirectAddresses.get(0), uri.getPath(false))); + asyncResponse.resume(Response.temporaryRedirect(redirectURI).build()); + future.complete(true); + } catch (URISyntaxException | NullPointerException e) { + if (log.isDebugEnabled()) { + log.error("Error in preparing redirect url with rest produce message request for topic {}: {}", + topicName, e.getMessage(), e); + } + asyncResponse.resume(new RestException(Status.INTERNAL_SERVER_ERROR, + "Fail to redirect client request.")); + future.complete(true); + } + } + } else { + future.complete(false); + } + } + + // Look up topic owner for non-partitioned topic or single topic partition. + private CompletableFuture<Void> lookUpBrokerForTopic(TopicName partitionedTopicName, + boolean authoritative, List<String> redirectAddresses) { + CompletableFuture<Void> future = new CompletableFuture<>(); + if (!pulsar().getBrokerService().getLookupRequestSemaphore().tryAcquire()) { + if (log.isDebugEnabled()) { + log.debug("Too many concurrent lookup request."); + } + future.completeExceptionally(new BrokerServiceException.TooManyRequestsException("Too many " + + "concurrent lookup request")); + return future; + } + CompletableFuture<Optional<LookupResult>> lookupFuture = pulsar().getNamespaceService() + .getBrokerServiceUrlAsync(partitionedTopicName, + LookupOptions.builder().authoritative(authoritative).loadTopicsInBundle(false).build()); + + lookupFuture.thenAccept(optionalResult -> { + if (optionalResult == null || !optionalResult.isPresent()) { + if (log.isDebugEnabled()) { + log.debug("Fail to lookup topic for rest produce message request for topic {}.", + partitionedTopicName); + } + completeLookup(Pair.of(Collections.emptyList(), false), redirectAddresses, future); + return; + } + + LookupResult result = optionalResult.get(); + if (result.getLookupData().getHttpUrl().equals(pulsar().getWebServiceAddress())) { + // Current broker owns the topic, add to owning topic. + if (log.isDebugEnabled()) { + log.debug("Complete topic look up for rest produce message request for topic {}, " + + "current broker is owner broker: {}", + partitionedTopicName, result.getLookupData()); + } + pulsar().getBrokerService().getOwningTopics().computeIfAbsent(partitionedTopicName + .getPartitionedTopicName(), (key) -> new ConcurrentOpenHashSet<Integer>()) + .add(partitionedTopicName.getPartitionIndex()); + completeLookup(Pair.of(Collections.emptyList(), false), redirectAddresses, future); + } else { + // Current broker doesn't own the topic or doesn't know who own the topic. + if (log.isDebugEnabled()) { + log.debug("Complete topic look up for rest produce message request for topic {}, " + + "current broker is not owner broker: {}", + partitionedTopicName, result.getLookupData()); + } + if (result.isRedirect()) { + // Redirect lookup. + completeLookup(Pair.of(Arrays.asList(result.getLookupData().getHttpUrl(), + result.getLookupData().getHttpUrlTls()), false), redirectAddresses, future); + } else { + // Found owner for topic. + completeLookup(Pair.of(Arrays.asList(result.getLookupData().getHttpUrl(), + result.getLookupData().getHttpUrlTls()), true), redirectAddresses, future); + } + } + }).exceptionally(exception -> { + if (log.isDebugEnabled()) { + log.debug("Fail to lookup broker with rest produce message request for topic {}: {}", + partitionedTopicName, exception.getMessage()); + } + completeLookup(Pair.of(Collections.emptyList(), false), redirectAddresses, future); + return null; + }); + return future; + } + + private CompletableFuture<Pair<SchemaData, SchemaVersion>> addOrGetSchemaForTopic(SchemaData schemaData, + LongSchemaVersion schemaVersion) { + CompletableFuture<Pair<SchemaData, SchemaVersion>> future = new CompletableFuture<>(); + // If schema version presents try to fetch existing schema. + if (null != schemaVersion) { + String id = TopicName.get(topicName.getPartitionedTopicName()).getSchemaName(); + SchemaRegistry.SchemaAndMetadata schemaAndMetadata; + try { + schemaAndMetadata = pulsar().getSchemaRegistryService().getSchema(id, schemaVersion).get(); + future.complete(Pair.of(schemaAndMetadata.schema, schemaAndMetadata.version)); + } catch (Exception e) { + if (log.isDebugEnabled()) { + log.debug("Fail to retrieve schema of version {} for topic {}: {}", + schemaVersion.getVersion(), topicName, e.getMessage()); + } + future.completeExceptionally(e); + } + } else if (null != schemaData) { + // Else try to add schema to topic. + SchemaVersion sv; + try { + sv = addSchema(schemaData).get(); + future.complete(Pair.of(schemaData, sv)); + } catch (Exception e) { + if (log.isDebugEnabled()) { + log.debug("Fail to add schema {} for topic {}: {}", + new String(schemaData.toSchemaInfo().getSchema()), topicName, e.getMessage()); + } + future.completeExceptionally(e); + } + } else { + // Indicating exception. + future.complete(Pair.of(null, null)); + } + return future; + } + + // Add a new schema to schema registry for a topic + private CompletableFuture<SchemaVersion> addSchema(SchemaData schemaData) { + // Only need to add to first partition the broker owns since the schema id in schema registry are + // same for all partitions which is the partitionedTopicName + List<Integer> partitions = pulsar().getBrokerService().getOwningTopics() + .get(topicName.getPartitionedTopicName()).values(); + CompletableFuture<SchemaVersion> result = new CompletableFuture<>(); + for (int index = 0; index < partitions.size(); index++) { + CompletableFuture<SchemaVersion> future = new CompletableFuture<>(); + String topicPartitionName = topicName.getPartition(partitions.get(index)).toString(); + pulsar().getBrokerService().getTopic(topicPartitionName, false) + .thenAccept(topic -> { + if (!topic.isPresent()) { + future.completeExceptionally(new BrokerServiceException.TopicNotFoundException( + "Topic " + topicPartitionName + " not found")); + } else { + topic.get().addSchema(schemaData).thenAccept(schemaVersion -> future.complete(schemaVersion)) + .exceptionally(exception -> { + future.completeExceptionally(exception); + return null; + }); + } + }); + try { + result.complete(future.get()); + break; + } catch (Exception e) { + if (log.isDebugEnabled()) { + log.debug("Fail to add schema to topic " + topicName.getPartitionedTopicName() + + " for partition " + partitions.get(index) + " for REST produce request."); + } + } + } + // Not able to add schema to any partition + if (!result.isDone()) { + result.completeExceptionally(new SchemaException("Unable to add schema " + schemaData + + " to topic " + topicName.getPartitionedTopicName())); + } + return result; + } + + // Build schemaData from passed in schema string. + private SchemaData getSchemaData(String keySchema, String valueSchema) { + try { + SchemaInfoImpl valueSchemaInfo = (valueSchema == null || valueSchema.isEmpty()) + ? (SchemaInfoImpl) StringSchema.utf8().getSchemaInfo() : + ObjectMapperFactory.getThreadLocal() + .readValue(valueSchema, SchemaInfoImpl.class); + if (null == valueSchemaInfo.getName()) { + valueSchemaInfo.setName(valueSchemaInfo.getType().toString()); + } + // Value schema only + if (keySchema == null || keySchema.isEmpty()) { + return SchemaData.builder() + .data(valueSchemaInfo.getSchema()) + .isDeleted(false) + .user("Rest Producer") + .timestamp(System.currentTimeMillis()) + .type(valueSchemaInfo.getType()) + .props(valueSchemaInfo.getProperties()) + .build(); + } else { + // Key_Value schema + SchemaInfoImpl keySchemaInfo = ObjectMapperFactory.getThreadLocal() + .readValue(keySchema, SchemaInfoImpl.class); + if (null == keySchemaInfo.getName()) { + keySchemaInfo.setName(keySchemaInfo.getType().toString()); + } + SchemaInfo schemaInfo = KeyValueSchemaInfo.encodeKeyValueSchemaInfo("KVSchema-" + + topicName.getPartitionedTopicName(), + keySchemaInfo, valueSchemaInfo, + KeyValueEncodingType.SEPARATED); + return SchemaData.builder() + .data(schemaInfo.getSchema()) + .isDeleted(false) + .user("Rest Producer") + .timestamp(System.currentTimeMillis()) + .type(schemaInfo.getType()) + .props(schemaInfo.getProperties()) + .build(); + } + } catch (IOException e) { + if (log.isDebugEnabled()) { + log.debug("Fail to parse schema info for rest produce request with key schema {} and value schema {}" + , keySchema, valueSchema); + } + return null; + } + } + + // Convert message to ByteBuf + public ByteBuf messageToByteBuf(Message message) { + checkArgument(message instanceof MessageImpl, "Message must be type of MessageImpl."); + + MessageImpl msg = (MessageImpl) message; + MessageMetadata messageMetadata = msg.getMessageBuilder(); + ByteBuf payload = msg.getDataBuffer(); + messageMetadata.setCompression(CompressionCodecProvider.convertToWireProtocol(CompressionType.NONE)); + messageMetadata.setUncompressedSize(payload.readableBytes()); + + return Commands.serializeMetadataAndPayload(Commands.ChecksumType.Crc32c, messageMetadata, payload); + } + + // Build pulsar message from REST request. + private List<Message> buildMessage(ProducerMessages producerMessages, Schema schema, + String producerName, TopicName topicName) { + List<ProducerMessage> messages; + List<Message> pulsarMessages = new ArrayList<>(); + + messages = producerMessages.getMessages(); + for (ProducerMessage message : messages) { + MessageMetadata messageMetadata = new MessageMetadata(); + messageMetadata.setProducerName(producerName); + messageMetadata.setPublishTime(System.currentTimeMillis()); + messageMetadata.setSequenceId(message.getSequenceId()); + if (null != message.getReplicationClusters()) { + messageMetadata.addAllReplicateTos(message.getReplicationClusters()); + } + + if (null != message.getProperties()) { + messageMetadata.addAllProperties(message.getProperties().entrySet().stream().map(entry -> { + org.apache.pulsar.common.api.proto.KeyValue keyValue = + new org.apache.pulsar.common.api.proto.KeyValue(); + keyValue.setKey(entry.getKey()); + keyValue.setValue(entry.getValue()); + return keyValue; + }).collect(Collectors.toList())); + } + if (null != message.getKey()) { + // If has key schema, encode partition key, else use plain text. + if (schema.getSchemaInfo().getType() == SchemaType.KEY_VALUE) { + KeyValueSchemaImpl kvSchema = (KeyValueSchemaImpl) schema; + messageMetadata.setPartitionKey( + Base64.getEncoder().encodeToString(encodeWithSchema(message.getKey(), + kvSchema.getKeySchema()))); + messageMetadata.setPartitionKeyB64Encoded(true); + } else { + messageMetadata.setPartitionKey(message.getKey()); + messageMetadata.setPartitionKeyB64Encoded(false); + } + } + if (null != message.getEventTime() && !message.getEventTime().isEmpty()) { + messageMetadata.setEventTime(Long.valueOf(message.getEventTime())); + } + if (message.isDisableReplication()) { + messageMetadata.clearReplicateTo(); + messageMetadata.addReplicateTo("__local__"); + } + if (message.getDeliverAt() != 0 && messageMetadata.hasEventTime()) { + messageMetadata.setDeliverAtTime(message.getDeliverAt()); + } else if (message.getDeliverAfterMs() != 0) { + messageMetadata.setDeliverAtTime(messageMetadata.getEventTime() + message.getDeliverAfterMs()); + } + if (schema.getSchemaInfo().getType() == SchemaType.KEY_VALUE) { + KeyValueSchemaImpl kvSchema = (KeyValueSchemaImpl) schema; + pulsarMessages.add(MessageImpl.create(messageMetadata, + ByteBuffer.wrap(encodeWithSchema(message.getPayload(), kvSchema.getValueSchema())), + schema, topicName.toString())); + } else { + pulsarMessages.add(MessageImpl.create(messageMetadata, + ByteBuffer.wrap(encodeWithSchema(message.getPayload(), schema)), schema, + topicName.toString())); + } + } + + return pulsarMessages; + } + + // Encode message with corresponding schema, do necessary conversion before encoding + private byte[] encodeWithSchema(String input, Schema schema) { Review comment: Should it be moved to SchemaUtils? 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