XNX02 commented on code in PR #15275: URL: https://github.com/apache/iotdb/pull/15275#discussion_r2044235976
########## iotdb-core/datanode/src/main/java/org/apache/iotdb/db/pipe/extractor/mqtt/MQTTPublishHandler.java: ########## @@ -0,0 +1,372 @@ +/* + * 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.iotdb.db.pipe.extractor.mqtt; + +import org.apache.iotdb.common.rpc.thrift.TSStatus; +import org.apache.iotdb.commons.conf.IoTDBConstant.ClientVersion; +import org.apache.iotdb.commons.pipe.agent.task.connection.UnboundedBlockingPendingQueue; +import org.apache.iotdb.commons.pipe.agent.task.meta.PipeTaskMeta; +import org.apache.iotdb.commons.pipe.config.constant.PipeExtractorConstant; +import org.apache.iotdb.commons.pipe.config.plugin.env.PipeTaskExtractorRuntimeEnvironment; +import org.apache.iotdb.commons.pipe.event.EnrichedEvent; +import org.apache.iotdb.commons.service.metric.PerformanceOverviewMetrics; +import org.apache.iotdb.db.auth.AuthorityChecker; +import org.apache.iotdb.db.exception.query.QueryProcessException; +import org.apache.iotdb.db.pipe.event.common.tablet.PipeRawTabletInsertionEvent; +import org.apache.iotdb.db.protocol.mqtt.Message; +import org.apache.iotdb.db.protocol.mqtt.PayloadFormatManager; +import org.apache.iotdb.db.protocol.mqtt.PayloadFormatter; +import org.apache.iotdb.db.protocol.mqtt.TableMessage; +import org.apache.iotdb.db.protocol.mqtt.TreeMessage; +import org.apache.iotdb.db.protocol.session.IClientSession; +import org.apache.iotdb.db.protocol.session.MqttClientSession; +import org.apache.iotdb.db.protocol.session.SessionManager; +import org.apache.iotdb.db.queryengine.plan.Coordinator; +import org.apache.iotdb.db.utils.CommonUtils; +import org.apache.iotdb.db.utils.TimestampPrecisionUtils; +import org.apache.iotdb.db.utils.TypeInferenceUtils; +import org.apache.iotdb.pipe.api.customizer.parameter.PipeParameters; +import org.apache.iotdb.rpc.TSStatusCode; +import org.apache.iotdb.service.rpc.thrift.TSProtocolVersion; + +import io.moquette.interception.AbstractInterceptHandler; +import io.moquette.interception.messages.InterceptConnectMessage; +import io.moquette.interception.messages.InterceptDisconnectMessage; +import io.moquette.interception.messages.InterceptPublishMessage; +import io.netty.buffer.ByteBuf; +import io.netty.handler.codec.mqtt.MqttQoS; +import org.apache.tsfile.enums.TSDataType; +import org.apache.tsfile.utils.Binary; +import org.apache.tsfile.utils.BitMap; +import org.apache.tsfile.write.record.Tablet; +import org.apache.tsfile.write.schema.MeasurementSchema; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.time.ZoneId; +import java.util.Arrays; +import java.util.List; +import java.util.concurrent.ConcurrentHashMap; +import java.util.stream.Collectors; +import java.util.stream.Stream; + +/** PublishHandler handle the messages from MQTT clients. */ +public class MQTTPublishHandler extends AbstractInterceptHandler { + + private static final Logger LOGGER = LoggerFactory.getLogger(MQTTPublishHandler.class); + + private final SessionManager sessionManager = SessionManager.getInstance(); + + private final ConcurrentHashMap<String, MqttClientSession> clientIdToSessionMap = + new ConcurrentHashMap<>(); + private final PayloadFormatter payloadFormat; + private final boolean useTableInsert; + private final UnboundedBlockingPendingQueue<EnrichedEvent> pendingQueue; + private final String pipeName; + private final long creationTime; + private final PipeTaskMeta pipeTaskMeta; + + public MQTTPublishHandler( + final PipeParameters pipeParameters, + final PipeTaskExtractorRuntimeEnvironment environment, + final UnboundedBlockingPendingQueue<EnrichedEvent> pendingQueue) { + this.payloadFormat = + PayloadFormatManager.getPayloadFormat( + pipeParameters.getStringOrDefault( + PipeExtractorConstant.MQTT_PAYLOAD_FORMATTER_KEY, + PipeExtractorConstant.MQTT_PAYLOAD_FORMATTER_DEFAULT_VALUE)); + useTableInsert = PayloadFormatter.TABLE_TYPE.equals(this.payloadFormat.getType()); + pipeName = environment.getPipeName(); + creationTime = environment.getCreationTime(); + pipeTaskMeta = environment.getPipeTaskMeta(); + this.pendingQueue = pendingQueue; + } + + @Override + public String getID() { + return "mqtt-source-broker-listener"; + } + + @Override + public void onConnect(InterceptConnectMessage msg) { + if (!clientIdToSessionMap.containsKey(msg.getClientID())) { + final MqttClientSession session = new MqttClientSession(msg.getClientID()); + sessionManager.login( + session, + msg.getUsername(), + new String(msg.getPassword()), + ZoneId.systemDefault().toString(), + TSProtocolVersion.IOTDB_SERVICE_PROTOCOL_V3, + ClientVersion.V_1_0, + useTableInsert ? IClientSession.SqlDialect.TABLE : IClientSession.SqlDialect.TREE); + sessionManager.registerSession(session); + clientIdToSessionMap.put(msg.getClientID(), session); + } + } + + @Override + public void onDisconnect(InterceptDisconnectMessage msg) { + final MqttClientSession session = clientIdToSessionMap.remove(msg.getClientID()); + if (null != session) { + sessionManager.removeCurrSession(); + sessionManager.closeSession(session, Coordinator.getInstance()::cleanupQueryExecution); + } + } + + @Override + public void onPublish(InterceptPublishMessage msg) { + try { + final String clientId = msg.getClientID(); + if (!clientIdToSessionMap.containsKey(clientId)) { + return; + } + final MqttClientSession session = clientIdToSessionMap.get(msg.getClientID()); + final ByteBuf payload = msg.getPayload(); + final String topic = msg.getTopicName(); + final String username = msg.getUsername(); + final MqttQoS qos = msg.getQos(); + + LOGGER.debug( + "Receive publish message. clientId: {}, username: {}, qos: {}, topic: {}, payload: {}", + clientId, + username, + qos, + topic, + payload); + + final List<Message> messages = payloadFormat.format(payload); + if (messages == null) { + return; + } + + for (Message message : messages) { + if (message == null) { + continue; + } + if (useTableInsert) { + final TableMessage tableMessage = (TableMessage) message; + // '/' previously defined as a database name + final String database = + !msg.getTopicName().contains("/") + ? msg.getTopicName() + : msg.getTopicName().substring(0, msg.getTopicName().indexOf("/")); + tableMessage.setDatabase(database.toLowerCase()); + extractTable(tableMessage, session); + } else { + extractTree((TreeMessage) message, session); + } + } + } catch (Throwable t) { + LOGGER.warn("onPublish execution exception, msg is [{}], error is ", msg, t); + } finally { + // release the payload of the message + super.onPublish(msg); + } + } + + /** Inserting table using tablet */ + private void extractTable(final TableMessage message, final MqttClientSession session) { + try { + TimestampPrecisionUtils.checkTimestampPrecision(message.getTimestamp()); + session.setDatabaseName(message.getDatabase().toLowerCase()); + session.setSqlDialect(IClientSession.SqlDialect.TABLE); + final EnrichedEvent event = generateEvent(message); + if (!event.increaseReferenceCount(MQTTPublishHandler.class.getName())) { + LOGGER.warn("The reference count of the event {} cannot be increased, skipping it.", event); Review Comment: appreciate it -- This is an automated message from the Apache Git Service. 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