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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.HashMap;
import java.util.List;
import java.util.Map;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import org.apache.commons.lang3.tuple.Pair;
import org.json.JSONException;
import org.json.JSONObject;
import org.json.XML;
import org.onap.datalake.feeder.domain.Topic;
import org.onap.datalake.feeder.enumeration.DataFormat;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;
/**
* Service to store messages to varieties of DBs
*
* comment out YAML support, since AML is for config and don't see this data type in DMaaP. Do we need to support XML?
*
* @author Guobiao Mo
*
*/
@Service
public class StoreService {
private final Logger log = LoggerFactory.getLogger(this.getClass());
@Autowired
private TopicService topicService;
@Autowired
private CouchbaseService couchbaseService;
@Autowired
private ElasticsearchService elasticsearchService;
private Map<String, Topic> topicMap = new HashMap<>();
private ObjectMapper yamlReader;
@PostConstruct
private void init() {
yamlReader = new ObjectMapper(new YAMLFactory());
}
@PreDestroy
public void cleanUp() {
}
public void saveMessages(String topicStr, List<Pair<Long, String>> messages) {//pair=ts+text
if (messages == null || messages.isEmpty()) {
return;
}
Topic topic = topicMap.computeIfAbsent(topicStr, k -> { //TODO get topic updated settings from DB periodically
return topicService.getEffectiveTopic(topicStr);
});
List<JSONObject> docs = new ArrayList<>();
for (Pair<Long, String> pair : messages) {
try {
docs.add(messageToJson(topic, pair));
} catch (Exception e) {
log.error(pair.getRight(), e);
}
}
saveJsons(topic, docs);
}
private JSONObject messageToJson(Topic topic, Pair<Long, String> pair) throws JSONException, JsonParseException, JsonMappingException, IOException {
long timestamp = pair.getLeft();
String text = pair.getRight();
//for debug, to be remove
// String topicStr = topic.getId();
// if (!"TestTopic1".equals(topicStr) && !"msgrtr.apinode.metrics.dmaap".equals(topicStr) && !"AAI-EVENT".equals(topicStr) && !"unauthenticated.DCAE_CL_OUTPUT".equals(topicStr) && !"unauthenticated.SEC_FAULT_OUTPUT".equals(topicStr)) {
// log.debug("{} ={}", topicStr, text);
//}
boolean storeRaw = topic.isSaveRaw();
JSONObject json = null;
DataFormat dataFormat = topic.getDataFormat();
switch (dataFormat) {
case JSON:
json = new JSONObject(text);
break;
case XML://XML and YAML can be directly inserted into ES, we may not need to convert it to JSON
json = XML.toJSONObject(text);
break;
case YAML:// Do we need to support YAML?
Object obj = yamlReader.readValue(text, Object.class);
ObjectMapper jsonWriter = new ObjectMapper();
String jsonString = jsonWriter.writeValueAsString(obj);
json = new JSONObject(jsonString);
break;
default:
json = new JSONObject();
storeRaw = true;
break;
}
//FIXME for debug, to be remove
json.remove("_id");
json.remove("_dl_text_");
json.put("_ts", timestamp);
if (storeRaw) {
json.put("_text", text);
}
return json;
}
private void saveJsons(Topic topic, List<JSONObject> jsons) {
if (topic.isSupportCouchbase()) {
couchbaseService.saveJsons(topic, jsons);
}
if (topic.isSupportElasticsearch()) {
elasticsearchService.saveJsons(topic, jsons);
}
}
}
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