content: /*
   * Copyright 2020 Alibaba Group Holding Limited.
   *
   * Licensed 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 com.alibaba.graphscope.common.client.channel;
  
  import com.alibaba.graphscope.common.config.Configs;
  import com.alibaba.graphscope.common.config.HiactorConfig;
  import com.alibaba.graphscope.common.config.Utils;
  
  import java.net.URI;
  import java.util.Collections;
  import java.util.List;
  import java.util.stream.Collectors;
  
  /**
   * http implementation of {@link ChannelFetcher}, init http from local config
   */
  public class HostURIChannelFetcher implements ChannelFetcher<URI> {
      private static final String schema = "http";
      private final List<URI> uriChannels;
  
      public HostURIChannelFetcher(Configs graphConfig) {
          this.uriChannels =
                  Utils.convertDotString(HiactorConfig.HIACTOR_HOSTS.get(graphConfig)).stream()
                          .map(k -> URI.create(schema + "://" + k))
                          .collect(Collectors.toList());
      }
  
      @Override
      public List<URI> fetch() {
          return Collections.unmodifiableList(uriChannels);
      }
  
      @Override
      public Type getType() {
          return Type.HTTP;
      }
  }
  