| /* |
| * 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.samza.system.elasticsearch; |
| |
| import org.apache.samza.config.Config; |
| import org.apache.samza.config.ElasticsearchConfig; |
| import org.apache.samza.metrics.MetricsRegistry; |
| import org.apache.samza.system.SystemAdmin; |
| import org.apache.samza.system.SystemConsumer; |
| import org.apache.samza.system.SystemFactory; |
| import org.apache.samza.system.SystemProducer; |
| import org.apache.samza.system.elasticsearch.client.ClientFactory; |
| import org.apache.samza.system.elasticsearch.indexrequest.DefaultIndexRequestFactory; |
| import org.apache.samza.system.elasticsearch.indexrequest.IndexRequestFactory; |
| import org.apache.samza.util.ReflectionUtil; |
| import org.elasticsearch.client.Client; |
| |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.InvocationTargetException; |
| |
| /** |
| * A {@link SystemFactory} for Elasticsearch. |
| * |
| * <p>This only supports the {@link SystemProducer} so all other methods return an |
| * {@link UnsupportedOperationException} |
| */ |
| public class ElasticsearchSystemFactory implements SystemFactory { |
| |
| @Override |
| public SystemConsumer getConsumer(String name, Config config, MetricsRegistry metricsRegistry) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public SystemProducer getProducer(String name, Config config, MetricsRegistry metricsRegistry) { |
| ElasticsearchConfig elasticsearchConfig = new ElasticsearchConfig(name, config); |
| return new ElasticsearchSystemProducer(name, |
| getBulkProcessorFactory(elasticsearchConfig), |
| getClient(elasticsearchConfig), |
| getIndexRequestFactory(elasticsearchConfig), |
| new ElasticsearchSystemProducerMetrics(name, metricsRegistry)); |
| } |
| |
| @Override |
| public SystemAdmin getAdmin(String name, Config config) { |
| return ElasticsearchSystemAdmin.getInstance(); |
| } |
| |
| |
| protected static BulkProcessorFactory getBulkProcessorFactory(ElasticsearchConfig config) { |
| return new BulkProcessorFactory(config); |
| } |
| |
| protected static Client getClient(ElasticsearchConfig config) { |
| String name = config.getClientFactoryClassName(); |
| try { |
| Constructor c = Class.forName(name).getConstructor(ElasticsearchConfig.class); |
| |
| return ((ClientFactory) c.newInstance(config)).getClient(); |
| } catch (InvocationTargetException | NoSuchMethodException | InstantiationException |
| | IllegalAccessException | ClassNotFoundException e) { |
| throw new RuntimeException(String.format("Could not instantiate class %s", name)); |
| } |
| } |
| |
| protected static IndexRequestFactory getIndexRequestFactory(ElasticsearchConfig config) { |
| if (config.getIndexRequestFactoryClassName().isPresent()) { |
| return ReflectionUtil.getObj(config.getIndexRequestFactoryClassName().get(), IndexRequestFactory.class); |
| } else { |
| return new DefaultIndexRequestFactory(); |
| } |
| } |
| |
| } |