| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.karaf.decanter.collector.elasticsearch; |
| |
| import org.apache.http.HttpHost; |
| import org.apache.http.auth.AuthScope; |
| import org.apache.http.auth.UsernamePasswordCredentials; |
| import org.apache.http.client.CredentialsProvider; |
| import org.apache.http.impl.client.BasicCredentialsProvider; |
| import org.apache.http.impl.nio.client.HttpAsyncClientBuilder; |
| import org.apache.karaf.decanter.collector.utils.PropertiesPreparator; |
| import org.elasticsearch.action.search.SearchRequest; |
| import org.elasticsearch.action.search.SearchResponse; |
| import org.elasticsearch.client.RequestOptions; |
| import org.elasticsearch.client.RestClient; |
| import org.elasticsearch.client.RestClientBuilder; |
| import org.elasticsearch.client.RestHighLevelClient; |
| import org.elasticsearch.common.unit.TimeValue; |
| import org.elasticsearch.index.query.QueryBuilder; |
| import org.elasticsearch.index.query.QueryBuilders; |
| import org.elasticsearch.rest.RestStatus; |
| import org.elasticsearch.search.SearchHit; |
| import org.elasticsearch.search.SearchHits; |
| import org.elasticsearch.search.builder.SearchSourceBuilder; |
| import org.osgi.service.component.ComponentContext; |
| 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.event.Event; |
| import org.osgi.service.event.EventAdmin; |
| import org.osgi.service.event.EventConstants; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.net.URL; |
| import java.util.*; |
| import java.util.concurrent.TimeUnit; |
| |
| @Component( |
| name = "org.apache.karaf.decanter.collector.elasticsearch", |
| immediate = true, |
| property = { "decanter.collector.name=elasticsearch", |
| "scheduler.period:Long=60", |
| "scheduler.concurrent:Boolean=false", |
| "scheduler.name=decanter-collector-elasticsearch"} |
| ) |
| public class ElasticsearchCollector implements Runnable { |
| |
| private final static Logger LOGGER = LoggerFactory.getLogger(ElasticsearchCollector.class); |
| |
| @Reference |
| private EventAdmin dispatcher; |
| |
| private Dictionary<String, Object> config; |
| private RestHighLevelClient restClient; |
| |
| @Activate |
| public void activate(ComponentContext componentContext) { |
| activate(componentContext.getProperties()); |
| } |
| |
| public void activate(Dictionary<String, Object> configuration) { |
| this.config = configuration; |
| String addressesString = (configuration.get("addresses") != null) ? configuration.get("addresses").toString() : "http://localhost:9200"; |
| String username = (configuration.get("username") != null) ? configuration.get("username").toString() : null; |
| String password = (configuration.get("password") != null) ? configuration.get("password").toString() : null; |
| |
| Set<String> addresses = new HashSet<>(Arrays.asList(addressesString.split(","))); |
| |
| HttpHost[] hosts = new HttpHost[addresses.size()]; |
| int i = 0; |
| for (String address : addresses) { |
| try { |
| URL url = new URL(address); |
| hosts[i] = new HttpHost(url.getHost(), url.getPort(), url.getProtocol()); |
| i++; |
| } catch (Exception e) { |
| LOGGER.warn("Bad elasticsearch address {}", address, e); |
| } |
| } |
| RestClientBuilder restClientBuilder = RestClient.builder(hosts); |
| |
| restClientBuilder.setRequestConfigCallback(requestConfigBuilder -> requestConfigBuilder.setConnectTimeout(1000) |
| .setSocketTimeout(10000)); |
| |
| if (username != null) { |
| final CredentialsProvider credentialsProvider = new BasicCredentialsProvider(); |
| credentialsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(username, password)); |
| restClientBuilder.setHttpClientConfigCallback( |
| new RestClientBuilder.HttpClientConfigCallback() { |
| @Override |
| public HttpAsyncClientBuilder customizeHttpClient(HttpAsyncClientBuilder httpAsyncClientBuilder) { |
| return httpAsyncClientBuilder.setDefaultCredentialsProvider(credentialsProvider); |
| } |
| } |
| ); |
| } |
| |
| restClient = new RestHighLevelClient(restClientBuilder); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| try { |
| restClient.close(); |
| } catch (Exception e) { |
| LOGGER.warn("Warning when closing elasticsearch client", e); |
| } |
| } |
| |
| @Override |
| public void run() { |
| SearchRequest searchRequest = new SearchRequest(); |
| |
| String index = (config.get("index") != null) ? config.get("index").toString() : "decanter"; |
| searchRequest.indices(index); |
| |
| SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder(); |
| |
| String query = (config.get("query") != null) ? config.get("query").toString() : null; |
| QueryBuilder queryBuilder; |
| if (query == null) { |
| queryBuilder = QueryBuilders.matchAllQuery(); |
| } else { |
| queryBuilder = QueryBuilders.queryStringQuery(query); |
| } |
| searchSourceBuilder.query(queryBuilder); |
| String fromString = (config.get("from") != null) ? config.get("from").toString() : null; |
| if (fromString != null) { |
| int from = Integer.parseInt(fromString); |
| searchSourceBuilder.from(from); |
| } |
| String sizeString = (config.get("size") != null) ? config.get("size").toString() : null; |
| if (sizeString != null) { |
| int size = Integer.parseInt(sizeString); |
| searchSourceBuilder.size(size); |
| } |
| String timeoutString = (config.get("timeout") != null) ? config.get("timeout").toString() : null; |
| if (timeoutString != null) { |
| int timeout = Integer.parseInt(timeoutString); |
| searchSourceBuilder.timeout(new TimeValue(timeout, TimeUnit.SECONDS)); |
| } |
| searchRequest.source(searchSourceBuilder); |
| |
| Map<String, Object> data = new HashMap<>(); |
| data.put("type", "elasticsearch"); |
| try { |
| SearchResponse searchResponse = restClient.search(searchRequest, RequestOptions.DEFAULT); |
| RestStatus status = searchResponse.status(); |
| TimeValue took = searchResponse.getTook(); |
| Boolean terminatedEarly = searchResponse.isTerminatedEarly(); |
| boolean timedOut = searchResponse.isTimedOut(); |
| int totalShards = searchResponse.getTotalShards(); |
| int successfulShards = searchResponse.getSuccessfulShards(); |
| int failedShards = searchResponse.getFailedShards(); |
| SearchHits hits = searchResponse.getHits(); |
| for (SearchHit hit : hits) { |
| Map<String, Object> sourceAsMap = hit.getSourceAsMap(); |
| data.putAll(sourceAsMap); |
| } |
| } catch (Exception e) { |
| LOGGER.error("Can't query elasticsearch", e); |
| } |
| try { |
| PropertiesPreparator.prepare(data, config); |
| } catch (Exception e) { |
| LOGGER.warn("Can't prepare event", e); |
| } |
| |
| String topic = (config.get(EventConstants.EVENT_TOPIC) != null) ? (String) config.get(EventConstants.EVENT_TOPIC) : "decanter/collect/elasticsearch"; |
| |
| dispatcher.postEvent(new Event(topic, data)); |
| } |
| |
| /** |
| * Visible for testing |
| */ |
| public void setDispatcher(EventAdmin dispatcher) { |
| this.dispatcher = dispatcher; |
| } |
| |
| } |