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/*-
* ============LICENSE_START=======================================================
* Simulator
* ================================================================================
* Copyright (C) 2021 Nokia. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.avcnmanager.config;
import org.apache.kafka.common.serialization.Serdes;
import org.apache.kafka.streams.StreamsBuilder;
import org.apache.kafka.streams.StreamsConfig;
import org.apache.kafka.streams.Topology;
import org.apache.kafka.streams.errors.LogAndContinueExceptionHandler;
import org.apache.kafka.streams.kstream.KStream;
import org.onap.avcnmanager.message.data.ChangePack;
import org.onap.avcnmanager.message.handlers.MessageHandler;
import org.onap.avcnmanager.message.serializers.ChangePackDeserializer;
import org.onap.avcnmanager.message.serializers.ChangePackSerializer;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;
import java.util.Properties;
@Configuration
public class AVCNConfig {
private static final int RETRIES_CONFIG = 5;
private static final int RETRY_BACKOFF_MS = 60000;
@Bean(name = "AVCNProperties")
public Properties getKafkaStreamProperties(
@Value("${kafka.bootstrap-servers}") String bootstrapServer,
@Value("${kafka.application.id}") String applicationId
) {
Properties properties = new Properties();
properties.put(StreamsConfig.APPLICATION_ID_CONFIG, applicationId);
properties.put(StreamsConfig.BOOTSTRAP_SERVERS_CONFIG, bootstrapServer);
properties.put(StreamsConfig.DEFAULT_KEY_SERDE_CLASS_CONFIG, Serdes.String().getClass().getName());
properties.put(StreamsConfig.DEFAULT_VALUE_SERDE_CLASS_CONFIG, ChangePackSerde.class.getName());
properties.put(StreamsConfig.DEFAULT_DESERIALIZATION_EXCEPTION_HANDLER_CLASS_CONFIG, LogAndContinueExceptionHandler.class);
properties.put(StreamsConfig.RETRIES_CONFIG, RETRIES_CONFIG);
properties.put(StreamsConfig.RETRY_BACKOFF_MS_CONFIG, RETRY_BACKOFF_MS);
return properties;
}
@Bean(name = "AVCNTopology")
public Topology getKafkaStreamTopology(
@Value("${kafka.source.topic}") String inTopic,
MessageHandler messageHandler
) {
StreamsBuilder builder = new StreamsBuilder();
KStream<String, ChangePack> stream = builder.stream(inTopic);
stream.foreach(messageHandler::handleMessage);
return builder.build();
}
@Bean
public RestTemplate getRestTemplate() {
return new RestTemplate();
}
public static final class ChangePackSerde extends Serdes.WrapperSerde<ChangePack> {
public ChangePackSerde() {
super(new ChangePackSerializer(), new ChangePackDeserializer());
}
}
}
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