Java tutorial
/** * Copyright 2016 Dhatim * * 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. */ package com.dhatim.io.dropwizard.metrics.elasticsearch; import com.codahale.metrics.MetricRegistry; import com.codahale.metrics.ScheduledReporter; import com.fasterxml.jackson.annotation.JsonTypeName; import io.dropwizard.metrics.BaseReporterFactory; import java.io.IOException; import java.util.Arrays; import java.util.Map; import org.elasticsearch.metrics.ElasticsearchReporter; import org.hibernate.validator.constraints.NotEmpty; import org.hibernate.validator.constraints.Range; @JsonTypeName("elasticsearch") public class ElasticSearchReporterFactory extends BaseReporterFactory { public static class Server { @NotEmpty public String host = "localhost"; @Range(min = 1, max = 49151) public int port = 9200; public Server() { } public Server(String host, int port) { this.host = host; this.port = port; } } public Server[] servers = new Server[] { new Server("localhost", 9200) }; public String prefix = ""; public String index = "metrics"; public String indexDateFormat = "yyyy.MM.dd"; public Map<String, Object> additionalFields; @Override public ScheduledReporter build(MetricRegistry registry) { try { String[] hosts = Arrays.stream(servers).map(s -> s.host + ":" + s.port).toArray(String[]::new); return ElasticsearchReporter.forRegistry(registry).hosts(hosts).prefixedWith(prefix).index(index) .indexDateFormat(indexDateFormat).additionalFields(additionalFields).build(); } catch (IOException e) { throw new RuntimeException("can't build elasticsearch reporter", e); } } }