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/*
* ============LICENSE_START=======================================================
* ONAP : DATALAKE
* ================================================================================
* Copyright 2019 China Mobile
*=================================================================================
* 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.datalake.feeder.service;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Optional;
import java.util.Set;
import org.apache.commons.collections.CollectionUtils;
import org.onap.datalake.feeder.config.ApplicationConfiguration;
import org.onap.datalake.feeder.dto.TopicConfig;
import org.onap.datalake.feeder.domain.Db;
import org.onap.datalake.feeder.domain.EffectiveTopic;
import org.onap.datalake.feeder.domain.Kafka;
import org.onap.datalake.feeder.domain.Topic;
import org.onap.datalake.feeder.repository.DbRepository;
import org.onap.datalake.feeder.repository.KafkaRepository;
import org.onap.datalake.feeder.repository.TopicNameRepository;
import org.onap.datalake.feeder.repository.TopicRepository;
import org.onap.datalake.feeder.service.db.ElasticsearchService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
/**
* Service for topics
*
* @author Guobiao Mo
*
*/
@Service
public class TopicService {
private final Logger log = LoggerFactory.getLogger(this.getClass());
@Autowired
private ApplicationConfiguration config;
@Autowired
private TopicNameRepository topicNameRepository;
@Autowired
private TopicRepository topicRepository;
@Autowired
private DbRepository dbRepository;
@Autowired
private DbService dbService;
@Autowired
private KafkaRepository kafkaRepository;
public List<EffectiveTopic> getEnabledEffectiveTopic(Kafka kafka, String topicStr, boolean ensureTableExist) throws IOException {
List<Topic> topics = findTopics(kafka, topicStr);
if (CollectionUtils.isEmpty(topics)) {
topics = new ArrayList<>();
topics.add(getDefaultTopic(kafka));
}
List<EffectiveTopic> ret = new ArrayList<>();
for (Topic topic : topics) {
if (!topic.isEnabled()) {
continue;
}
ret.add(new EffectiveTopic(topic, topicStr));
if (ensureTableExist) {
for (Db db : topic.getDbs()) {
if (db.isElasticsearch()) {
ElasticsearchService elasticsearchService = (ElasticsearchService) dbService.findDbStoreService(db);
elasticsearchService.ensureTableExist(topicStr);
}
}
}
}
return ret;
}
//TODO use query
public List<Topic> findTopics(Kafka kafka, String topicStr) {
List<Topic> ret = new ArrayList<>();
Iterable<Topic> allTopics = topicRepository.findAll();
for(Topic topic: allTopics) {
if(topic.getKafkas().contains(kafka ) && topic.getTopicName().getId().equals(topicStr)){
ret.add(topic);
}
}
return ret;
}
public Topic getTopic(int topicId) {
Optional<Topic> ret = topicRepository.findById(topicId);
return ret.isPresent() ? ret.get() : null;
}
public Topic getDefaultTopic(Kafka kafka) {
return findTopics(kafka, config.getDefaultTopicName()).get(0);
}
public boolean isDefaultTopic(Topic topic) {
if (topic == null) {
return false;
}
return topic.getName().equals(config.getDefaultTopicName());
}
public void fillTopicConfiguration(TopicConfig tConfig, Topic wTopic) {
fillTopic(tConfig, wTopic);
}
public Topic fillTopicConfiguration(TopicConfig tConfig) {
Topic topic = new Topic();
fillTopic(tConfig, topic);
return topic;
}
private void fillTopic(TopicConfig tConfig, Topic topic) {
Set<Db> relateDb = new HashSet<>();
topic.setId(tConfig.getId());
topic.setTopicName(topicNameRepository.findById(tConfig.getName()).get());
topic.setLogin(tConfig.getLogin());
topic.setPass(tConfig.getPassword());
topic.setEnabled(tConfig.isEnabled());
topic.setSaveRaw(tConfig.isSaveRaw());
topic.setTtl(tConfig.getTtl());
topic.setCorrelateClearedMessage(tConfig.isCorrelateClearedMessage());
topic.setDataFormat(tConfig.getDataFormat());
topic.setMessageIdPath(tConfig.getMessageIdPath());
topic.setAggregateArrayPath(tConfig.getAggregateArrayPath());
topic.setFlattenArrayPath(tConfig.getFlattenArrayPath());
if (tConfig.getSinkdbs() != null) {
for (String item : tConfig.getSinkdbs()) {
Db sinkdb = dbRepository.findByName(item);
if (sinkdb != null) {
relateDb.add(sinkdb);
}
}
if (!relateDb.isEmpty())
topic.setDbs(relateDb);
else {
topic.getDbs().clear();
}
} else {
topic.setDbs(relateDb);
}
Set<Kafka> relateKafka = new HashSet<>();
if (tConfig.getKafkas() != null) {
for (int item : tConfig.getKafkas()) {
Optional<Kafka> sinkKafka = kafkaRepository.findById(item);
if (sinkKafka.isPresent()) {
relateKafka.add(sinkKafka.get());
}
}
if (!relateKafka.isEmpty()) {
topic.setKafkas(relateKafka);
} else {
topic.getKafkas().clear();
}
} else {
topic.setKafkas(relateKafka);
}
}
}
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