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 com.google.common.base.Strings;
  import com.google.common.collect.ImmutableMap;
  import com.linecorp.armeria.common.HttpRequest;
  import com.linecorp.armeria.common.MediaType;
  import java.util.Map;
  import lombok.RequiredArgsConstructor;
  import lombok.SneakyThrows;
  import org.apache.skywalking.library.elasticsearch.ElasticSearchVersion;
  import org.apache.skywalking.library.elasticsearch.requests.factory.IndexFactory;
  import org.apache.skywalking.library.elasticsearch.response.Mappings;
  
  import static com.google.common.base.Preconditions.checkArgument;
  
  @RequiredArgsConstructor
  final class V7IndexFactory implements IndexFactory {
      private final ElasticSearchVersion version;
  
      @Override
      public HttpRequest exists(String index) {
          checkArgument(!Strings.isNullOrEmpty(index), "index cannot be null or empty");
  
          return HttpRequest.builder()
                            .head("/{index}")
                            .pathParam("index", index)
                            .build();
      }
  
      @Override
      public HttpRequest get(final String index) {
          checkArgument(!Strings.isNullOrEmpty(index), "index cannot be null or empty");
  
          return HttpRequest.builder()
                            .get("/{index}")
                            .pathParam("index", index)
                            .build();
      }
  
      @SneakyThrows
      @Override
      public HttpRequest create(String index,
                                Mappings mappings,
                                Map<String, ?> settings) {
          checkArgument(!Strings.isNullOrEmpty(index), "index cannot be null or empty");
  
          final ImmutableMap.Builder<String, Object> bodyBuilder = ImmutableMap.builder();
          if (mappings != null) {
              bodyBuilder.put("mappings", mappings);
          }
          if (settings != null) {
              bodyBuilder.put("settings", settings);
          }
          final ImmutableMap<String, Object> body = bodyBuilder.build();
          final byte[] content = version.codec().encode(body);
  
          return HttpRequest.builder()
                            .put("/{index}")
                            .pathParam("index", index)
                            .content(MediaType.JSON, content)
                            .build();
      }
  
      @Override
      public HttpRequest delete(String index) {
          checkArgument(!Strings.isNullOrEmpty(index), "index cannot be null or empty");
  
          return HttpRequest.builder()
                            .delete("/{index}")
                            .pathParam("index", index)
                            .build();
      }
  
      @SneakyThrows
      @Override
      public HttpRequest putMapping(String index, String type, Mappings mapping) {
          checkArgument(!Strings.isNullOrEmpty(index), "index cannot be null or empty");
  
          final byte[] content = version.codec().encode(mapping);
          return HttpRequest.builder()
                            .put("/{index}/_mapping")
                            .pathParam("index", index)
                            .content(MediaType.JSON, content)
                            .build();
      }
  }
  