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.v7plus;
  
  import static com.google.common.base.Preconditions.checkArgument;
  import static com.google.common.base.Strings.isNullOrEmpty;
  import static com.google.common.collect.Iterables.isEmpty;
  import static java.util.Objects.requireNonNull;
  import java.util.Map;
  import org.apache.skywalking.library.elasticsearch.ElasticSearchVersion;
  import org.apache.skywalking.library.elasticsearch.requests.UpdateRequest;
  import org.apache.skywalking.library.elasticsearch.requests.factory.DocumentFactory;
  import com.google.common.collect.ImmutableMap;
  import com.linecorp.armeria.common.HttpRequest;
  import com.linecorp.armeria.common.HttpRequestBuilder;
  import com.linecorp.armeria.common.MediaType;
  import lombok.SneakyThrows;
  import lombok.experimental.Delegate;
  
  public class V81DocumentFactory implements DocumentFactory {
      private final ElasticSearchVersion version;
  
      @Delegate // Delegate all compatible methods to V7DocumentFactory and just override the incompatible ones.
      private final V7DocumentFactory v7DocumentFactory;
  
      public V81DocumentFactory(ElasticSearchVersion version) {
          this.version = version;
          this.v7DocumentFactory = new V7DocumentFactory(version);
      }
  
      @SneakyThrows
      @Override
      public HttpRequest update(UpdateRequest request, Map<String, ?> params) {
          requireNonNull(request, "request");
  
          final String index = request.getIndex();
          final String type = request.getType();
          final String id = request.getId();
          final Map<String, Object> doc = request.getDoc();
  
          checkArgument(!isNullOrEmpty(index), "index cannot be null or empty");
          checkArgument(!isNullOrEmpty(type), "type cannot be null or empty");
          checkArgument(!isNullOrEmpty(id), "id cannot be null or empty");
          checkArgument(doc != null && !isEmpty(doc.entrySet()), "doc cannot be null or empty");
  
          final HttpRequestBuilder builder = HttpRequest.builder();
          if (params != null) {
              params.forEach(builder::queryParam);
          }
          final byte[] content = version.codec().encode(ImmutableMap.of("doc", doc));
  
          builder.post("/{index}/_update/{id}")
                 .pathParam("index", index)
                 .pathParam("id", id)
                 .content(MediaType.JSON, content);
  
          return builder.build();
      }
  }
  