| /* |
| * 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.flink.streaming.connectors.elasticsearch2; |
| |
| import org.apache.flink.annotation.Internal; |
| import org.apache.flink.streaming.connectors.elasticsearch.ElasticsearchApiCallBridge; |
| import org.apache.flink.streaming.connectors.elasticsearch.ElasticsearchSinkBase; |
| import org.apache.flink.streaming.connectors.elasticsearch.util.ElasticsearchUtils; |
| import org.apache.flink.util.Preconditions; |
| |
| import org.elasticsearch.action.bulk.BackoffPolicy; |
| import org.elasticsearch.action.bulk.BulkItemResponse; |
| import org.elasticsearch.action.bulk.BulkProcessor; |
| import org.elasticsearch.client.transport.TransportClient; |
| import org.elasticsearch.common.settings.Settings; |
| import org.elasticsearch.common.transport.TransportAddress; |
| import org.elasticsearch.common.unit.TimeValue; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import javax.annotation.Nullable; |
| |
| import java.net.InetSocketAddress; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * Implementation of {@link ElasticsearchApiCallBridge} for Elasticsearch 2.x. |
| */ |
| @Internal |
| public class Elasticsearch2ApiCallBridge implements ElasticsearchApiCallBridge<TransportClient> { |
| |
| private static final long serialVersionUID = 2638252694744361079L; |
| |
| private static final Logger LOG = LoggerFactory.getLogger(Elasticsearch2ApiCallBridge.class); |
| |
| /** |
| * User-provided transport addresses. |
| * |
| * <p>We are using {@link InetSocketAddress} because {@link TransportAddress} is not serializable in Elasticsearch 2.x. |
| */ |
| private final List<InetSocketAddress> transportAddresses; |
| |
| Elasticsearch2ApiCallBridge(List<InetSocketAddress> transportAddresses) { |
| Preconditions.checkArgument(transportAddresses != null && !transportAddresses.isEmpty()); |
| this.transportAddresses = transportAddresses; |
| } |
| |
| @Override |
| public TransportClient createClient(Map<String, String> clientConfig) { |
| Settings settings = Settings.settingsBuilder().put(clientConfig).build(); |
| |
| TransportClient transportClient = TransportClient.builder().settings(settings).build(); |
| for (TransportAddress address : ElasticsearchUtils.convertInetSocketAddresses(transportAddresses)) { |
| transportClient.addTransportAddress(address); |
| } |
| |
| // verify that we actually are connected to a cluster |
| if (transportClient.connectedNodes().isEmpty()) { |
| throw new RuntimeException("Elasticsearch client is not connected to any Elasticsearch nodes!"); |
| } |
| |
| if (LOG.isInfoEnabled()) { |
| LOG.info("Created Elasticsearch TransportClient with connected nodes {}", transportClient.connectedNodes()); |
| } |
| |
| return transportClient; |
| } |
| |
| @Override |
| public BulkProcessor.Builder createBulkProcessorBuilder(TransportClient client, BulkProcessor.Listener listener) { |
| return BulkProcessor.builder(client, listener); |
| } |
| |
| @Override |
| public Throwable extractFailureCauseFromBulkItemResponse(BulkItemResponse bulkItemResponse) { |
| if (!bulkItemResponse.isFailed()) { |
| return null; |
| } else { |
| return bulkItemResponse.getFailure().getCause(); |
| } |
| } |
| |
| @Override |
| public void configureBulkProcessorBackoff( |
| BulkProcessor.Builder builder, |
| @Nullable ElasticsearchSinkBase.BulkFlushBackoffPolicy flushBackoffPolicy) { |
| |
| BackoffPolicy backoffPolicy; |
| if (flushBackoffPolicy != null) { |
| switch (flushBackoffPolicy.getBackoffType()) { |
| case CONSTANT: |
| backoffPolicy = BackoffPolicy.constantBackoff( |
| new TimeValue(flushBackoffPolicy.getDelayMillis()), |
| flushBackoffPolicy.getMaxRetryCount()); |
| break; |
| case EXPONENTIAL: |
| default: |
| backoffPolicy = BackoffPolicy.exponentialBackoff( |
| new TimeValue(flushBackoffPolicy.getDelayMillis()), |
| flushBackoffPolicy.getMaxRetryCount()); |
| } |
| } else { |
| backoffPolicy = BackoffPolicy.noBackoff(); |
| } |
| |
| builder.setBackoffPolicy(backoffPolicy); |
| } |
| } |