Created
December 4, 2018 11:40
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Maven pom file
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import java.util.Date; | |
import java.util.HashMap; | |
public class Attempt { | |
private String gamer; | |
private Date timestamp; | |
private int score; | |
private int round; | |
public Attempt(String gamer, Date timestamp, int round, int score) { | |
this.gamer = gamer; | |
this.timestamp = timestamp; | |
this.score = score; | |
this.round = round; | |
} | |
public HashMap<String, Object> toMap() { | |
HashMap<String, Object> map = new HashMap<>(); | |
map.put("gamer", gamer); | |
map.put("timestamp", timestamp); | |
map.put("score", score); | |
map.put("round", round); | |
return map; | |
} | |
} |
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import org.apache.http.HttpHost; | |
import org.elasticsearch.action.bulk.BulkRequest; | |
import org.elasticsearch.action.bulk.BulkResponse; | |
import org.elasticsearch.action.get.GetRequest; | |
import org.elasticsearch.action.get.GetResponse; | |
import org.elasticsearch.action.index.IndexRequest; | |
import org.elasticsearch.action.index.IndexResponse; | |
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.RestHighLevelClient; | |
import org.elasticsearch.common.xcontent.XContentType; | |
import org.elasticsearch.index.query.QueryBuilders; | |
import org.elasticsearch.search.builder.SearchSourceBuilder; | |
import java.util.Arrays; | |
import java.util.Date; | |
public class Demo { | |
public static void main(String[] args) throws Exception { | |
try (RestHighLevelClient client = new RestHighLevelClient( | |
RestClient.builder(new HttpHost("localhost", 9200, "http")))) { | |
IndexRequest request = new IndexRequest("posts", "doc", "1") | |
.source("user", "kimchy", | |
"postDate", new Date(), | |
"message", "trying out Elasticsearch"); | |
IndexResponse indexResponse = client.index(request, RequestOptions.DEFAULT); | |
System.out.println(indexResponse.status()); | |
GetRequest getRequest = new GetRequest("posts", "doc", "1"); | |
GetResponse getResponse = client.get(getRequest, RequestOptions.DEFAULT); | |
System.out.println(getResponse.getSourceAsString()); | |
BulkRequest bulkRequest = new BulkRequest(); | |
bulkRequest.add(new IndexRequest("posts", "doc", "2") | |
.source(XContentType.JSON, "field", "foo")); | |
bulkRequest.add(new IndexRequest("posts", "doc", "3") | |
.source(XContentType.JSON, "field", "bar")); | |
bulkRequest.add(new IndexRequest("posts", "doc", "4") | |
.source(XContentType.JSON, "field", "baz")); | |
BulkResponse bulkResponse = client.bulk(bulkRequest, RequestOptions.DEFAULT); | |
System.out.println(!bulkResponse.hasFailures()); | |
SearchRequest searchRequest1 = new SearchRequest("posts"); | |
SearchResponse searchResponse1 = client.search(searchRequest1, RequestOptions.DEFAULT); | |
System.out.println(Arrays.toString(searchResponse1.getHits().getHits())); | |
SearchRequest searchRequest2 = new SearchRequest("posts"); | |
SearchSourceBuilder sourceBuilder = new SearchSourceBuilder(); | |
sourceBuilder.query(QueryBuilders.termQuery("message", "trying")); | |
searchRequest2.source(sourceBuilder); | |
SearchResponse searchResponse2 = client.search(searchRequest2, RequestOptions.DEFAULT); | |
System.out.println(Arrays.toString(searchResponse2.getHits().getHits())); | |
} | |
} | |
} |
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import org.apache.commons.lang3.RandomUtils; | |
import org.apache.http.HttpHost; | |
import org.elasticsearch.action.admin.indices.delete.DeleteIndexRequest; | |
import org.elasticsearch.action.bulk.BulkRequest; | |
import org.elasticsearch.action.bulk.BulkResponse; | |
import org.elasticsearch.action.index.IndexRequest; | |
import org.elasticsearch.client.RequestOptions; | |
import org.elasticsearch.client.RestClient; | |
import org.elasticsearch.client.RestHighLevelClient; | |
import java.util.Arrays; | |
import java.util.Date; | |
import java.util.List; | |
public class Game { | |
public static void main(String[] args) throws Exception { | |
List<String> gamers = Arrays.asList("Jirka", "Honza", "Tonda", "Emil", "Martin"); | |
int numberOfRounds = 1000; | |
try (RestHighLevelClient client = new RestHighLevelClient( | |
RestClient.builder(new HttpHost("localhost", 9200, "http")))) { | |
BulkRequest bulkRequest = new BulkRequest(); | |
for (int round = 0; round < numberOfRounds; round++) { | |
Date currentDate = new Date(); | |
for (String gamer : gamers) { | |
double score = RandomUtils.nextInt(1, 7); | |
Attempt attempt = new Attempt(gamer, currentDate, round, (int) score); | |
IndexRequest indexRequest = new IndexRequest("game", "attempt") | |
.source(attempt.toMap()); | |
bulkRequest.add(indexRequest); | |
} | |
if (round % 100 == 0) { | |
BulkResponse response = client.bulk(bulkRequest, RequestOptions.DEFAULT); | |
System.out.println("Current round " + round + " > " + response.status()); | |
bulkRequest = new BulkRequest(); | |
} | |
} | |
client.bulk(bulkRequest, RequestOptions.DEFAULT); | |
} | |
} | |
} |
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<?xml version="1.0" encoding="UTF-8"?> | |
<project xmlns="http://maven.apache.org/POM/4.0.0" | |
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | |
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> | |
<modelVersion>4.0.0</modelVersion> | |
<groupId>elasticsearch</groupId> | |
<artifactId>elasticsearch</artifactId> | |
<version>1.0-SNAPSHOT</version> | |
<properties> | |
<elasticsearch.version>6.5.1</elasticsearch.version> | |
</properties> | |
<dependencies> | |
<dependency> | |
<groupId>org.elasticsearch</groupId> | |
<artifactId>elasticsearch</artifactId> | |
<version>${elasticsearch.version}</version> | |
</dependency> | |
<dependency> | |
<groupId>org.elasticsearch.client</groupId> | |
<artifactId>elasticsearch-rest-high-level-client</artifactId> | |
<version>${elasticsearch.version}</version> | |
</dependency> | |
<dependency> | |
<groupId>org.apache.commons</groupId> | |
<artifactId>commons-lang3</artifactId> | |
<version>3.5</version> | |
</dependency> | |
</dependencies> | |
<build> | |
<plugins> | |
<plugin> | |
<artifactId>maven-compiler-plugin</artifactId> | |
<version>3.5.1</version> | |
<configuration> | |
<source>1.8</source> | |
<target>1.8</target> | |
</configuration> | |
</plugin> | |
</plugins> | |
</build> | |
</project> |
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