| /* |
| * 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.rabbitmq; |
| |
| import org.apache.iotdb.rpc.IoTDBConnectionException; |
| import org.apache.iotdb.rpc.StatementExecutionException; |
| import org.apache.iotdb.session.Session; |
| import org.apache.iotdb.tsfile.file.metadata.enums.CompressionType; |
| import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType; |
| import org.apache.iotdb.tsfile.file.metadata.enums.TSEncoding; |
| |
| import com.rabbitmq.client.AMQP; |
| import com.rabbitmq.client.BuiltinExchangeType; |
| import com.rabbitmq.client.Channel; |
| import com.rabbitmq.client.DefaultConsumer; |
| import com.rabbitmq.client.Envelope; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.List; |
| |
| /** |
| * The class is to show how to get data from RabbitMQ. The data is sent by class RabbitMQProducer. |
| */ |
| public class RabbitMQConsumer { |
| |
| private static final Logger LOGGER = LoggerFactory.getLogger(RabbitMQConsumer.class); |
| |
| public static void main(String[] args) throws Exception { |
| try (Session session = |
| new Session( |
| Constant.IOTDB_CONNECTION_HOST, |
| Constant.IOTDB_CONNECTION_PORT, |
| Constant.IOTDB_CONNECTION_USER, |
| Constant.IOTDB_CONNECTION_PWD)) { |
| session.open(); |
| session.setStorageGroup(Constant.STORAGE_GROUP); |
| for (String[] timeseries : Constant.TIMESERIESLIST) { |
| createTimeseries(session, timeseries); |
| } |
| RabbitMQConsumer consumer = new RabbitMQConsumer(); |
| Channel channel = RabbitMQChannelUtils.getChannelInstance(Constant.CONNECTION_NAME); |
| AMQP.Queue.DeclareOk declareOk = |
| channel.queueDeclare( |
| Constant.RABBITMQ_CONSUMER_QUEUE, true, false, false, new HashMap<>()); |
| channel.exchangeDeclare(Constant.TOPIC, BuiltinExchangeType.TOPIC); |
| channel.queueBind(declareOk.getQueue(), Constant.TOPIC, "IoTDB.#", new HashMap<>()); |
| DefaultConsumer defaultConsumer = |
| new DefaultConsumer(channel) { |
| @Override |
| public void handleDelivery( |
| String consumerTag, |
| Envelope envelope, |
| AMQP.BasicProperties properties, |
| byte[] body) { |
| String param = |
| consumerTag + ", " + envelope.toString() + ", " + properties.toString(); |
| LOGGER.info(param); |
| try { |
| consumer.insert(session, new String(body)); |
| } catch (Exception e) { |
| LOGGER.error(e.getMessage()); |
| } |
| } |
| }; |
| channel.basicConsume( |
| declareOk.getQueue(), true, Constant.RABBITMQ_CONSUMER_TAG, defaultConsumer); |
| } |
| } |
| |
| private static void createTimeseries(Session session, String[] timeseries) |
| throws StatementExecutionException, IoTDBConnectionException { |
| String timeseriesId = timeseries[0]; |
| TSDataType dataType = TSDataType.valueOf(timeseries[1]); |
| TSEncoding encoding = TSEncoding.valueOf(timeseries[2]); |
| CompressionType compressionType = CompressionType.valueOf(timeseries[3]); |
| session.createTimeseries(timeseriesId, dataType, encoding, compressionType); |
| } |
| |
| private void insert(Session session, String data) |
| throws IoTDBConnectionException, StatementExecutionException { |
| String[] dataArray = data.split(","); |
| String device = dataArray[0]; |
| long time = Long.parseLong(dataArray[1]); |
| List<String> measurements = Arrays.asList(dataArray[2].split(":")); |
| List<TSDataType> types = new ArrayList<>(); |
| for (String type : dataArray[3].split(":")) { |
| types.add(TSDataType.valueOf(type)); |
| } |
| List<Object> values = new ArrayList<>(); |
| String[] valuesStr = dataArray[4].split(":"); |
| for (int i = 0; i < valuesStr.length; i++) { |
| switch (types.get(i)) { |
| case INT64: |
| values.add(Long.parseLong(valuesStr[i])); |
| break; |
| case DOUBLE: |
| values.add(Double.parseDouble(valuesStr[i])); |
| break; |
| case INT32: |
| values.add(Integer.parseInt(valuesStr[i])); |
| break; |
| case TEXT: |
| values.add(valuesStr[i]); |
| break; |
| case FLOAT: |
| values.add(Float.parseFloat(valuesStr[i])); |
| break; |
| case BOOLEAN: |
| values.add(Boolean.parseBoolean(valuesStr[i])); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| session.insertRecord(device, time, measurements, types, values); |
| } |
| } |