content: /*
   * 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 com.aliyun.odps.sqa.commandapi;
  
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.LinkedHashMap;
  import java.util.List;
  import java.util.Map;
  
  import com.aliyun.odps.Odps;
  import com.aliyun.odps.OdpsException;
  import com.aliyun.odps.data.Record;
  import com.aliyun.odps.security.SecurityManager;
  import com.aliyun.odps.sqa.commandapi.utils.CommandUtil;
  import com.aliyun.odps.type.TypeInfo;
  import com.aliyun.odps.type.TypeInfoFactory;
  import com.aliyun.odps.utils.StringUtils;
  import com.google.gson.JsonObject;
  import com.google.gson.JsonParseException;
  import com.google.gson.JsonParser;
  
  class WhoamiCommand implements Command {
  
    private static final Map<String, TypeInfo> infoMap = new LinkedHashMap<>();
  
    static {
      infoMap.put("DisplayName", TypeInfoFactory.STRING);
      infoMap.put("SourceIP", TypeInfoFactory.STRING);
      infoMap.put("VpcId", TypeInfoFactory.STRING);
      infoMap.put("Endpoint", TypeInfoFactory.STRING);
      infoMap.put("TunnelEndpoint", TypeInfoFactory.STRING);
      infoMap.put("Project", TypeInfoFactory.STRING);
      infoMap.put("Schema", TypeInfoFactory.STRING);
    }
  
    @Override
    public boolean isSync() {
      return true;
    }
  
    @Override
    public List<TypeInfo> getResultTypes() {
      return new ArrayList<>(infoMap.values());
    }
  
    @Override
    public List<String> getResultHeaders() {
      return new ArrayList<>(infoMap.keySet());
    }
  
    @Override
    public RecordIter<Record> run(Odps odps, CommandInfo commandInfo) throws OdpsException {
  
      SecurityManager sm = odps.projects().get().getSecurityManager();
      String result = sm.runQuery(commandInfo.getCommandText(), false);
      Map<String, Object> map = new HashMap<>();
  
      try {
        JsonObject js = new JsonParser().parse(result).getAsJsonObject();
        map.put("DisplayName", js.has("DisplayName") ? js.get("DisplayName").getAsString() : null);
        map.put("SourceIP", js.has("SourceIP") ? js.get("SourceIP").getAsString() : null);
        map.put("VpcId", js.has("VpcId") ? js.get("VpcId").getAsString() : null);
        map.put("Endpoint", odps.getEndpoint());
        // TODO: support specify tunnel quota from ..?
        map.put("TunnelEndpoint", odps.projects().get().getTunnelEndpoint(null));
        map.put("Project", odps.getDefaultProject());
        map.put("Schema", StringUtils.isNullOrEmpty(odps.getCurrentSchema()) ? "default"
                                                                             : odps.getCurrentSchema());
      } catch (JsonParseException e) {
        throw new RuntimeException("parse whoami error:" + e.getMessage());
      }
  
      return new RecordIter<>(CommandUtil.toRecord(map, infoMap).iterator(),
                              getResultHeaders(), getResultTypes());
    }
  }
  