| /* |
| * Copyright 2018-present Open Networking Foundation |
| * |
| * Licensed 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.onosproject.openstacktelemetry.impl; |
| |
| import com.fasterxml.jackson.databind.node.ArrayNode; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| import com.google.common.collect.Maps; |
| import com.google.common.collect.Sets; |
| import org.apache.kafka.clients.producer.KafkaProducer; |
| import org.apache.kafka.clients.producer.Producer; |
| import org.apache.kafka.clients.producer.ProducerRecord; |
| import org.apache.kafka.clients.producer.RecordMetadata; |
| import org.onosproject.codec.CodecContext; |
| import org.onosproject.codec.CodecService; |
| import org.onosproject.codec.JsonCodec; |
| import org.onosproject.openstacktelemetry.api.FlowInfo; |
| import org.onosproject.openstacktelemetry.api.KafkaTelemetryAdminService; |
| import org.onosproject.openstacktelemetry.api.LinkInfo; |
| import org.onosproject.openstacktelemetry.api.OpenstackTelemetryService; |
| import org.onosproject.openstacktelemetry.api.TelemetryCodec; |
| import org.onosproject.openstacktelemetry.api.TelemetryConfigService; |
| import org.onosproject.openstacktelemetry.api.config.KafkaTelemetryConfig; |
| import org.onosproject.openstacktelemetry.api.config.TelemetryConfig; |
| import org.onosproject.rest.AbstractWebResource; |
| import org.osgi.service.component.annotations.Activate; |
| import org.osgi.service.component.annotations.Component; |
| import org.osgi.service.component.annotations.Deactivate; |
| import org.osgi.service.component.annotations.Reference; |
| import org.osgi.service.component.annotations.ReferenceCardinality; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.nio.ByteBuffer; |
| import java.util.Map; |
| import java.util.Properties; |
| import java.util.Set; |
| import java.util.concurrent.Future; |
| |
| import static org.apache.kafka.clients.producer.ProducerConfig.ACKS_CONFIG; |
| import static org.apache.kafka.clients.producer.ProducerConfig.BATCH_SIZE_CONFIG; |
| import static org.apache.kafka.clients.producer.ProducerConfig.BOOTSTRAP_SERVERS_CONFIG; |
| import static org.apache.kafka.clients.producer.ProducerConfig.BUFFER_MEMORY_CONFIG; |
| import static org.apache.kafka.clients.producer.ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG; |
| import static org.apache.kafka.clients.producer.ProducerConfig.LINGER_MS_CONFIG; |
| import static org.apache.kafka.clients.producer.ProducerConfig.METADATA_FETCH_TIMEOUT_CONFIG; |
| import static org.apache.kafka.clients.producer.ProducerConfig.RECONNECT_BACKOFF_MS_CONFIG; |
| import static org.apache.kafka.clients.producer.ProducerConfig.RETRIES_CONFIG; |
| import static org.apache.kafka.clients.producer.ProducerConfig.RETRY_BACKOFF_MS_CONFIG; |
| import static org.apache.kafka.clients.producer.ProducerConfig.TIMEOUT_CONFIG; |
| import static org.apache.kafka.clients.producer.ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG; |
| import static org.onosproject.openstacktelemetry.api.Constants.KAFKA_SCHEME; |
| import static org.onosproject.openstacktelemetry.api.config.TelemetryConfig.ConfigType.KAFKA; |
| import static org.onosproject.openstacktelemetry.api.config.TelemetryConfig.Status.ENABLED; |
| import static org.onosproject.openstacktelemetry.config.DefaultKafkaTelemetryConfig.fromTelemetryConfig; |
| import static org.onosproject.openstacktelemetry.util.OpenstackTelemetryUtil.flowsToLinks; |
| import static org.onosproject.openstacktelemetry.util.OpenstackTelemetryUtil.testConnectivity; |
| |
| /** |
| * Kafka telemetry manager. |
| */ |
| @Component(immediate = true, service = KafkaTelemetryAdminService.class) |
| public class KafkaTelemetryManager extends AbstractWebResource |
| implements KafkaTelemetryAdminService { |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| private static final int METADATA_FETCH_TIMEOUT_VAL = 300; |
| private static final int TIMEOUT_VAL = 300; |
| private static final int RETRY_BACKOFF_MS_VAL = 10000; |
| private static final int RECONNECT_BACKOFF_MS_VAL = 10000; |
| |
| private static final String LINK_INFOS = "linkInfos"; |
| |
| private static final String BYTE_ARRAY_SERIALIZER = |
| "org.apache.kafka.common.serialization.ByteArraySerializer"; |
| private static final String STRING_SERIALIZER = |
| "org.apache.kafka.common.serialization.StringSerializer"; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected CodecService codecService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected OpenstackTelemetryService openstackTelemetryService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected TelemetryConfigService telemetryConfigService; |
| |
| private Map<String, Producer<String, String>> stringProducers = Maps.newConcurrentMap(); |
| private Map<String, Producer<String, byte[]>> byteProducers = Maps.newConcurrentMap(); |
| |
| @Activate |
| protected void activate() { |
| |
| openstackTelemetryService.addTelemetryService(this); |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| stopAll(); |
| |
| openstackTelemetryService.removeTelemetryService(this); |
| |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public Set<Future<RecordMetadata>> publish(Set<FlowInfo> flowInfos) { |
| |
| log.debug("Send telemetry record to kafka server..."); |
| Set<Future<RecordMetadata>> futureSet = Sets.newHashSet(); |
| |
| if (byteProducers == null || byteProducers.isEmpty()) { |
| log.debug("Byte producer is empty!"); |
| } else { |
| byteProducers.forEach((k, v) -> { |
| TelemetryConfig config = telemetryConfigService.getConfig(k); |
| KafkaTelemetryConfig kafkaConfig = fromTelemetryConfig(config); |
| |
| if (kafkaConfig != null && |
| BYTE_ARRAY_SERIALIZER.equals(kafkaConfig.valueSerializer())) { |
| try { |
| Class codecClazz = Class.forName(kafkaConfig.codec()); |
| TelemetryCodec codec = (TelemetryCodec) codecClazz.newInstance(); |
| |
| ByteBuffer buffer = codec.encode(flowInfos); |
| ProducerRecord record = new ProducerRecord<>( |
| kafkaConfig.topic(), kafkaConfig.key(), buffer.array()); |
| futureSet.add(v.send(record)); |
| } catch (ClassNotFoundException | |
| IllegalAccessException | InstantiationException e) { |
| log.warn("Failed to send telemetry record due to {}", e); |
| } |
| } |
| }); |
| } |
| |
| if (stringProducers == null || stringProducers.isEmpty()) { |
| log.debug("String producer is empty!"); |
| } else { |
| stringProducers.forEach((k, v) -> { |
| TelemetryConfig config = telemetryConfigService.getConfig(k); |
| KafkaTelemetryConfig kafkaConfig = fromTelemetryConfig(config); |
| |
| if (kafkaConfig != null && |
| STRING_SERIALIZER.equals(kafkaConfig.valueSerializer())) { |
| |
| // TODO: this is a workaround to convert flowInfo to linkInfo |
| // need to find a better solution |
| |
| Set<LinkInfo> linkInfos = flowsToLinks(flowInfos); |
| |
| if (!linkInfos.isEmpty()) { |
| ProducerRecord record = new ProducerRecord<>( |
| kafkaConfig.topic(), kafkaConfig.key(), |
| encodeStrings(linkInfos, this, |
| kafkaConfig.codec()).toString()); |
| futureSet.add(v.send(record)); |
| } |
| } |
| }); |
| } |
| |
| return futureSet; |
| } |
| |
| @Override |
| public boolean isRunning() { |
| return !byteProducers.isEmpty(); |
| } |
| |
| @Override |
| public boolean start(String name) { |
| boolean success = false; |
| TelemetryConfig config = telemetryConfigService.getConfig(name); |
| KafkaTelemetryConfig kafkaConfig = fromTelemetryConfig(config); |
| |
| if (kafkaConfig != null && !config.name().equals(KAFKA_SCHEME) && |
| config.status() == ENABLED) { |
| StringBuilder kafkaServerBuilder = new StringBuilder(); |
| kafkaServerBuilder.append(kafkaConfig.address()); |
| kafkaServerBuilder.append(":"); |
| kafkaServerBuilder.append(kafkaConfig.port()); |
| |
| // Configure Kafka server properties |
| Properties prop = new Properties(); |
| prop.put(BOOTSTRAP_SERVERS_CONFIG, kafkaServerBuilder.toString()); |
| prop.put(RETRIES_CONFIG, kafkaConfig.retries()); |
| prop.put(ACKS_CONFIG, kafkaConfig.requiredAcks()); |
| prop.put(BATCH_SIZE_CONFIG, kafkaConfig.batchSize()); |
| prop.put(LINGER_MS_CONFIG, kafkaConfig.lingerMs()); |
| prop.put(BUFFER_MEMORY_CONFIG, kafkaConfig.memoryBuffer()); |
| prop.put(KEY_SERIALIZER_CLASS_CONFIG, kafkaConfig.keySerializer()); |
| prop.put(VALUE_SERIALIZER_CLASS_CONFIG, kafkaConfig.valueSerializer()); |
| prop.put(METADATA_FETCH_TIMEOUT_CONFIG, METADATA_FETCH_TIMEOUT_VAL); |
| prop.put(TIMEOUT_CONFIG, TIMEOUT_VAL); |
| prop.put(RETRY_BACKOFF_MS_CONFIG, RETRY_BACKOFF_MS_VAL); |
| prop.put(RECONNECT_BACKOFF_MS_CONFIG, RECONNECT_BACKOFF_MS_VAL); |
| |
| if (testConnectivity(kafkaConfig.address(), kafkaConfig.port())) { |
| if (kafkaConfig.valueSerializer().equals(BYTE_ARRAY_SERIALIZER)) { |
| byteProducers.put(name, new KafkaProducer<>(prop)); |
| } |
| |
| if (kafkaConfig.valueSerializer().equals(STRING_SERIALIZER)) { |
| stringProducers.put(name, new KafkaProducer<>(prop)); |
| } |
| |
| success = true; |
| } else { |
| log.warn("Unable to connect to {}:{}, " + |
| "please check the connectivity manually", |
| kafkaConfig.address(), kafkaConfig.port()); |
| } |
| } |
| |
| return success; |
| } |
| |
| @Override |
| public void stop(String name) { |
| Producer<String, byte[]> byteProducer = byteProducers.get(name); |
| Producer<String, String> stringProducer = stringProducers.get(name); |
| |
| if (byteProducer != null) { |
| byteProducer.close(); |
| byteProducers.remove(name); |
| } |
| |
| if (stringProducer != null) { |
| stringProducer.close(); |
| stringProducers.remove(name); |
| } |
| } |
| |
| @Override |
| public boolean restart(String name) { |
| stop(name); |
| return start(name); |
| } |
| |
| @Override |
| public void startAll() { |
| telemetryConfigService.getConfigsByType(KAFKA).forEach(c -> start(c.name())); |
| log.info("Kafka producer has Started"); |
| } |
| |
| @Override |
| public void stopAll() { |
| if (!byteProducers.isEmpty()) { |
| byteProducers.values().forEach(Producer::close); |
| } |
| |
| byteProducers.clear(); |
| |
| if (!stringProducers.isEmpty()) { |
| stringProducers.values().forEach(Producer::close); |
| } |
| |
| stringProducers.clear(); |
| |
| log.info("Kafka producer has Stopped"); |
| } |
| |
| @Override |
| public void restartAll() { |
| stopAll(); |
| startAll(); |
| } |
| |
| private ObjectNode encodeStrings(Set<LinkInfo> infos, |
| CodecContext context, String codecName) { |
| ObjectNode root = context.mapper().createObjectNode(); |
| ArrayNode array = context.mapper().createArrayNode(); |
| try { |
| Class codecClazz = Class.forName(codecName); |
| JsonCodec codec = codecService.getCodec(codecClazz); |
| |
| infos.forEach(l -> array.add(codec.encode(l, context))); |
| } catch (ClassNotFoundException e) { |
| log.warn("Failed to send telemetry record due to {}", e); |
| } |
| |
| root.set(LINK_INFOS, array); |
| return root; |
| } |
| } |