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.table.enviroment;
  
  import com.aliyun.odps.table.utils.Preconditions;
  import com.aliyun.odps.utils.StringUtils;
  import com.google.gson.JsonObject;
  import com.google.gson.JsonParser;
  import org.apache.commons.io.IOUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.io.BufferedInputStream;
  import java.io.FileInputStream;
  import java.io.IOException;
  import java.util.Optional;
  
  import static com.aliyun.odps.table.utils.ConfigConstants.*;
  
  public class LocalEnvironment extends ExecutionEnvironment {
  
      private static final Logger logger = LoggerFactory.getLogger(ExecutionEnvironment.class);
  
      private String localEndpoint = null;
  
      public LocalEnvironment(EnvironmentSettings settings) {
          super(settings);
      }
  
      @Override
      protected void initialize() {
          String mode = System.getenv(MAX_STORAGE_MODE);
          if (StringUtils.isNullOrEmpty(mode)) {
              logger.warn("Local env without maxstorage mode");
              return;
          }
  
          String prefix;
          String port;
          String confPath = System.getenv(MAX_STORAGE_DATA_PROXY_CONF_PATH);
  
          if (StringUtils.isNullOrEmpty(confPath)) {
              prefix = System.getenv(MAX_STORAGE_DATA_PROXY_PREFIX);
              port = System.getenv(MAX_STORAGE_DATA_PROXY_PORT);
          } else {
              port = System.getProperty(MAX_STORAGE_DATA_PROXY_PORT);
              if (!StringUtils.isNullOrEmpty(port)) {
                  prefix = System.getProperty(MAX_STORAGE_DATA_PROXY_PREFIX);
              } else {
                  try (FileInputStream fis = new FileInputStream(confPath);
                       BufferedInputStream bis = new BufferedInputStream(fis)) {
  
                      JsonObject conf = new JsonParser().parse(
                              new String(IOUtils.toByteArray(bis))).getAsJsonObject();
  
                      if (conf.has(MAX_STORAGE_DATA_PROXY_PORT)) {
                          System.setProperty(MAX_STORAGE_DATA_PROXY_PORT,
                                  conf.get(MAX_STORAGE_DATA_PROXY_PORT).getAsString());
                      }
  
                      if (conf.has(MAX_STORAGE_DATA_PROXY_PREFIX)) {
                          System.setProperty(MAX_STORAGE_DATA_PROXY_PREFIX,
                                  conf.get(MAX_STORAGE_DATA_PROXY_PREFIX).getAsString());
                      }
                  } catch (IOException e) {
                      logger.error("Local env find conf " + confPath + " failed!", e);
                      return;
                  }
                  prefix = System.getProperty(MAX_STORAGE_DATA_PROXY_PREFIX);
                  port = System.getProperty(MAX_STORAGE_DATA_PROXY_PORT);
              }
          }
  
          Preconditions.checkString(port, MAX_STORAGE_DATA_PROXY_PORT);
  
          String localHostPort;
          if (StringUtils.isNullOrEmpty(prefix)) {
              localHostPort = "http://127.0.0.1:" + port;
          } else {
              localHostPort = "http://127.0.0.1:" + port + "/" + prefix;
          }
          this.localEndpoint = localHostPort;
      }
  
      @Override
      public String getTunnelEndpoint(String targetProject) {
          ensureInitialized();
          return Optional.ofNullable(localEndpoint).orElseGet(() ->
                  settings.getTunnelEndpoint().orElseThrow(() ->
                          new IllegalStateException("Local environment get empty tunnel endpoint!")));
      }
  }
  