JNSimba commented on code in PR #10171: URL: https://github.com/apache/doris/pull/10171#discussion_r923995188
########## samples/doris-demo/flink-demo/src/main/java/org/apache/doris/demo/flink/elasticsearch/ElasticsearchInput.java: ########## @@ -0,0 +1,248 @@ +// 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.doris.demo.flink.elasticsearch; + +import org.apache.commons.collections.map.CaseInsensitiveMap; +import org.apache.flink.annotation.PublicEvolving; +import org.apache.flink.api.common.io.DefaultInputSplitAssigner; +import org.apache.flink.api.common.io.RichInputFormat; +import org.apache.flink.api.common.io.statistics.BaseStatistics; +import org.apache.flink.api.common.typeinfo.TypeInformation; +import org.apache.flink.api.java.typeutils.ResultTypeQueryable; +import org.apache.flink.api.java.typeutils.RowTypeInfo; +import org.apache.flink.configuration.Configuration; +import org.apache.flink.core.io.GenericInputSplit; +import org.apache.flink.core.io.InputSplit; +import org.apache.flink.core.io.InputSplitAssigner; +import org.apache.flink.streaming.connectors.elasticsearch7.RestClientFactory; +import org.apache.flink.types.Row; +import org.apache.flink.util.Preconditions; +import org.apache.http.HttpHost; +import org.elasticsearch.action.search.ClearScrollRequest; +import org.elasticsearch.action.search.SearchRequest; +import org.elasticsearch.action.search.SearchResponse; +import org.elasticsearch.action.search.SearchScrollRequest; +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.QueryBuilders; +import org.elasticsearch.search.Scroll; +import org.elasticsearch.search.builder.SearchSourceBuilder; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.util.Arrays; +import java.util.Iterator; +import java.util.List; +import java.util.Map; +import java.util.stream.Collectors; + +/** + * custom elasticsearch source + */ + +public class ElasticsearchInput extends RichInputFormat<Row, InputSplit> implements ResultTypeQueryable<Row> { + + private static final Logger LOG = LoggerFactory.getLogger(ElasticsearchInput.class); + + private final List<HttpHost> httpHosts; + private final RestClientFactory restClientFactory; + private final String index; + + private transient RestHighLevelClient client; + + private String scrollId; + private SearchRequest searchRequest; + + private RowTypeInfo rowTypeInfo; + + private boolean hasNext; + + private Iterator<Map<String, Object>> iterator; + private Map<String, Integer> position; + + + public ElasticsearchInput(List<HttpHost> httpHosts, + RestClientFactory restClientFactory, String index) { + this.httpHosts = httpHosts; + this.restClientFactory = restClientFactory; + this.index = index; + } + + @Override + public void configure(Configuration parameters) { + + } + + @Override + public BaseStatistics getStatistics(BaseStatistics cachedStatistics) throws IOException { + return cachedStatistics; + } + + @Override + public InputSplit[] createInputSplits(int minNumSplits) throws IOException { + return new GenericInputSplit[]{new GenericInputSplit(0, 1)}; + } + + @Override + public InputSplitAssigner getInputSplitAssigner(InputSplit[] inputSplits) { + return new DefaultInputSplitAssigner(inputSplits); + } + + @Override + public void open(InputSplit split) throws IOException { + search(); + } + + // 从 es 中获取数据 Review Comment: english comment -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org
