content: /*
   * Tencent is pleased to support the open source community by making Angel available.
   *
   * Copyright (C) 2017-2018 THL A29 Limited, a Tencent company. All rights reserved.
   *
   * 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
   *
   * https://opensource.org/licenses/Apache-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.tencent.angel.client;
  
  import java.util.HashMap;
  import java.util.Iterator;
  
  import com.tencent.angel.api.python.PythonUtils;
  import com.tencent.angel.client.kubernetes.AngelKubernetesClient;
  import org.apache.hadoop.conf.Configuration;
  
  import com.tencent.angel.AngelDeployMode;
  import com.tencent.angel.client.local.AngelLocalClient;
  import com.tencent.angel.client.yarn.AngelYarnClient;
  import com.tencent.angel.conf.AngelConf;
  
  /**
   * Angel client factory, it support two types client now: LOCAL and YARN
   */
  public class AngelClientFactory {
  
    private static AngelClientFactory factory;
  
    // Used for java code to get a AngelClient instance
    public static AngelClient get(Configuration conf) {
      if (factory == null) {
        factory = new AngelClientFactory();
      }
      return factory.doGet(conf);
    }
  
    // Used for python code to get a AngelClient instance
    public static AngelClient get(HashMap confMap, Configuration conf) {
      Configuration mapConf = PythonUtils.addMapToConf(confMap, conf);
      return get(mapConf);
    }
  
    public AngelClient doGet(Configuration conf) {
      String mode = conf.get(AngelConf.ANGEL_DEPLOY_MODE, AngelConf.DEFAULT_ANGEL_DEPLOY_MODE);
  
      if (mode.equals(AngelDeployMode.LOCAL.toString())) {
        return new AngelLocalClient(conf);
      } else if(mode.equals(AngelDeployMode.KUBERNETES.toString())) {
        return new AngelKubernetesClient(conf);
      } else {
        return new AngelYarnClient(conf);
      }
    }
  }