Jian Li | 6803ccd | 2018-06-08 09:26:09 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2018-present Open Networking Foundation |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.onosproject.openstacktelemetry.impl; |
| 17 | |
| 18 | import org.apache.felix.scr.annotations.Activate; |
| 19 | import org.apache.felix.scr.annotations.Component; |
| 20 | import org.apache.felix.scr.annotations.Deactivate; |
Jian Li | d1ce10a | 2018-06-12 13:47:23 +0900 | [diff] [blame] | 21 | import org.apache.felix.scr.annotations.Reference; |
| 22 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
Jian Li | 6803ccd | 2018-06-08 09:26:09 +0900 | [diff] [blame] | 23 | import org.apache.felix.scr.annotations.Service; |
| 24 | import org.apache.kafka.clients.producer.KafkaProducer; |
| 25 | import org.apache.kafka.clients.producer.Producer; |
| 26 | import org.apache.kafka.clients.producer.ProducerRecord; |
| 27 | import org.apache.kafka.clients.producer.RecordMetadata; |
| 28 | import org.onosproject.openstacktelemetry.api.KafkaTelemetryAdminService; |
Jian Li | d1ce10a | 2018-06-12 13:47:23 +0900 | [diff] [blame] | 29 | import org.onosproject.openstacktelemetry.api.OpenstackTelemetryService; |
Jian Li | 6803ccd | 2018-06-08 09:26:09 +0900 | [diff] [blame] | 30 | import org.onosproject.openstacktelemetry.api.config.KafkaTelemetryConfig; |
| 31 | import org.onosproject.openstacktelemetry.api.config.TelemetryConfig; |
| 32 | import org.slf4j.Logger; |
| 33 | import org.slf4j.LoggerFactory; |
| 34 | |
| 35 | import java.util.Properties; |
| 36 | import java.util.concurrent.Future; |
| 37 | |
| 38 | /** |
| 39 | * Kafka telemetry manager. |
| 40 | */ |
| 41 | @Component(immediate = true) |
| 42 | @Service |
| 43 | public class KafkaTelemetryManager implements KafkaTelemetryAdminService { |
| 44 | |
| 45 | private final Logger log = LoggerFactory.getLogger(getClass()); |
| 46 | |
| 47 | private static final String BOOTSTRAP_SERVERS = "bootstrap.servers"; |
| 48 | private static final String RETRIES = "retries"; |
| 49 | private static final String ACKS = "acks"; |
| 50 | private static final String BATCH_SIZE = "batch.size"; |
| 51 | private static final String LINGER_MS = "linger.ms"; |
| 52 | private static final String MEMORY_BUFFER = "buffer.memory"; |
| 53 | private static final String KEY_SERIALIZER = "key.serializer"; |
| 54 | private static final String VALUE_SERIALIZER = "value.serializer"; |
| 55 | |
Jian Li | d1ce10a | 2018-06-12 13:47:23 +0900 | [diff] [blame] | 56 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 57 | protected OpenstackTelemetryService openstackTelemetryService; |
| 58 | |
Jian Li | 6803ccd | 2018-06-08 09:26:09 +0900 | [diff] [blame] | 59 | private Producer<String, byte[]> producer = null; |
| 60 | |
| 61 | @Activate |
| 62 | protected void activate() { |
Jian Li | d1ce10a | 2018-06-12 13:47:23 +0900 | [diff] [blame] | 63 | |
| 64 | openstackTelemetryService.addTelemetryService(this); |
| 65 | |
Jian Li | 6803ccd | 2018-06-08 09:26:09 +0900 | [diff] [blame] | 66 | log.info("Started"); |
| 67 | } |
| 68 | |
| 69 | @Deactivate |
| 70 | protected void deactivate() { |
| 71 | stop(); |
Jian Li | d1ce10a | 2018-06-12 13:47:23 +0900 | [diff] [blame] | 72 | |
| 73 | openstackTelemetryService.removeTelemetryService(this); |
| 74 | |
Jian Li | 6803ccd | 2018-06-08 09:26:09 +0900 | [diff] [blame] | 75 | log.info("Stopped"); |
| 76 | } |
| 77 | |
| 78 | @Override |
| 79 | public void start(TelemetryConfig config) { |
| 80 | if (producer != null) { |
| 81 | log.info("Kafka producer has already been started"); |
| 82 | return; |
| 83 | } |
| 84 | |
| 85 | KafkaTelemetryConfig kafkaConfig = (KafkaTelemetryConfig) config; |
| 86 | |
| 87 | StringBuilder kafkaServerBuilder = new StringBuilder(); |
| 88 | kafkaServerBuilder.append(kafkaConfig.address()); |
| 89 | kafkaServerBuilder.append(":"); |
| 90 | kafkaServerBuilder.append(kafkaConfig.port()); |
| 91 | |
| 92 | // Configure Kafka server properties |
| 93 | Properties prop = new Properties(); |
| 94 | prop.put(BOOTSTRAP_SERVERS, kafkaServerBuilder.toString()); |
| 95 | prop.put(RETRIES, kafkaConfig.retries()); |
| 96 | prop.put(ACKS, kafkaConfig.requiredAcks()); |
| 97 | prop.put(BATCH_SIZE, kafkaConfig.batchSize()); |
| 98 | prop.put(LINGER_MS, kafkaConfig.lingerMs()); |
| 99 | prop.put(MEMORY_BUFFER, kafkaConfig.memoryBuffer()); |
| 100 | prop.put(KEY_SERIALIZER, kafkaConfig.keySerializer()); |
| 101 | prop.put(VALUE_SERIALIZER, kafkaConfig.valueSerializer()); |
| 102 | |
| 103 | producer = new KafkaProducer<>(prop); |
| 104 | log.info("Kafka producer has Started"); |
| 105 | } |
| 106 | |
| 107 | @Override |
| 108 | public void stop() { |
| 109 | if (producer != null) { |
| 110 | producer.close(); |
| 111 | producer = null; |
| 112 | } |
| 113 | |
| 114 | log.info("Kafka producer has Stopped"); |
| 115 | } |
| 116 | |
| 117 | @Override |
| 118 | public void restart(TelemetryConfig config) { |
| 119 | stop(); |
| 120 | start(config); |
| 121 | } |
| 122 | |
| 123 | @Override |
| 124 | public Future<RecordMetadata> publish(ProducerRecord<String, byte[]> record) { |
Jian Li | d1ce10a | 2018-06-12 13:47:23 +0900 | [diff] [blame] | 125 | |
| 126 | if (producer == null) { |
Jian Li | a494768 | 2018-07-07 14:53:32 +0900 | [diff] [blame^] | 127 | log.debug("Kafka telemetry service has not been enabled!"); |
Jian Li | d1ce10a | 2018-06-12 13:47:23 +0900 | [diff] [blame] | 128 | return null; |
| 129 | } |
| 130 | |
Jian Li | 85573f4 | 2018-06-27 22:29:14 +0900 | [diff] [blame] | 131 | log.debug("Send telemetry record to kafka server..."); |
Jian Li | 6803ccd | 2018-06-08 09:26:09 +0900 | [diff] [blame] | 132 | return producer.send(record); |
| 133 | } |
Jian Li | d1ce10a | 2018-06-12 13:47:23 +0900 | [diff] [blame] | 134 | |
| 135 | @Override |
| 136 | public boolean isRunning() { |
| 137 | return producer != null; |
| 138 | } |
Jian Li | 6803ccd | 2018-06-08 09:26:09 +0900 | [diff] [blame] | 139 | } |