/*
    * Copyright 2018 LINE Corporation
    *
    * LINE Corporation 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:
    *
    *   https://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.linecorp.centraldogma.client.armeria;
  
  import static com.linecorp.centraldogma.client.armeria.EndpointListCodecUtils.convertToEndpointList;
  import static com.linecorp.centraldogma.client.armeria.EndpointListCodecUtils.objectMapper;
  
  import java.io.IOException;
  import java.util.List;
  
  import com.fasterxml.jackson.core.type.TypeReference;
  import com.fasterxml.jackson.databind.JsonNode;
  
  import com.linecorp.armeria.client.Endpoint;
  
  final class JsonEndpointListDecoder implements EndpointListDecoder<JsonNode> {
      @Override
      public List<Endpoint> decode(JsonNode node) {
          final List<String> endpoints;
          try {
              endpoints = objectMapper.readValue(node.traverse(),
                                                 new TypeReference<List<String>>() {});
          } catch (IOException e) {
              throw new IllegalArgumentException("invalid format: " + node);
          }
          return convertToEndpointList(endpoints);
      }
  }