code: /*
   * 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.skywalking.library.elasticsearch.requests.factory.common;
  
  import java.util.HashMap;
  import java.util.Map;
  import com.linecorp.armeria.common.HttpRequest;
  import com.linecorp.armeria.common.HttpRequestBuilder;
  import com.linecorp.armeria.common.MediaType;
  import org.apache.skywalking.library.elasticsearch.ElasticSearchVersion;
  import org.apache.skywalking.library.elasticsearch.requests.factory.SearchFactory;
  import org.apache.skywalking.library.elasticsearch.requests.search.Scroll;
  import org.apache.skywalking.library.elasticsearch.requests.search.Search;
  import org.apache.skywalking.library.elasticsearch.requests.search.SearchParams;
  import lombok.RequiredArgsConstructor;
  import lombok.SneakyThrows;
  import lombok.extern.slf4j.Slf4j;
  
  @Slf4j
  @RequiredArgsConstructor
  public final class CommonSearchFactory implements SearchFactory {
      private final ElasticSearchVersion version;
  
      @SneakyThrows
      @Override
      public HttpRequest search(Search search,
                                SearchParams params,
                                String... indices) {
          final HttpRequestBuilder builder = HttpRequest.builder();
  
          if (indices == null || indices.length == 0) {
              builder.get("/_search");
          } else {
              builder.get("/{indices}/_search")
                     .pathParam("indices", String.join(",", indices));
          }
  
          if (params != null) {
              params.forEach(e -> builder.queryParam(e.getKey(), e.getValue()));
          }
  
          final byte[] content = version.codec().encode(search);
  
          if (log.isDebugEnabled()) {
              log.debug("Search request: {}", new String(content));
          }
  
          return builder.content(MediaType.JSON, content)
                        .build();
      }
  
      @SneakyThrows
      @Override
      public HttpRequest scroll(Scroll scroll) {
          final HttpRequestBuilder builder = HttpRequest.builder().get("/_search/scroll");
  
          final byte[] content = version.codec().encode(scroll);
  
          if (log.isDebugEnabled()) {
              log.debug("Scroll request: {}", new String(content));
          }
  
          return builder.content(MediaType.JSON, content).build();
      }
  
      @SneakyThrows
      @Override
      public HttpRequest deleteScrollContext(String scrollId) {
          final HttpRequestBuilder builder = HttpRequest.builder().delete("/_search/scroll");
          final Map<String, String> params = new HashMap<>();
          params.put("scroll_id", scrollId);
          final byte[] content = version.codec().encode(params);
  
          if (log.isDebugEnabled()) {
              log.debug("Delete scroll context request: {}", new String(content));
          }
  
          return builder.content(MediaType.JSON, content).build();
      }
  }
  