text: ﻿/*
  * Copyright 2010-2017 Amazon.com, Inc. or its affiliates. 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.
  * A copy of the License is located at
  *
  *  http://aws.amazon.com/apache2.0
  *
  * or in the "license" file accompanying this file. This file 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.
  */
  
  #include <aws/clouddirectory/CloudDirectoryEndpoint.h>
  #include <aws/core/utils/memory/stl/AWSStringStream.h>
  #include <aws/core/utils/HashingUtils.h>
  
  using namespace Aws;
  using namespace Aws::CloudDirectory;
  
  namespace Aws
  {
  namespace CloudDirectory
  {
  namespace CloudDirectoryEndpoint
  {
    static const int CN_NORTH_HASH = Aws::Utils::HashingUtils::HashString("cn-north-1");
    static const int CN_NORTHWEST_1_HASH = Aws::Utils::HashingUtils::HashString("cn-northwest-1");
    
  
    Aws::String ForRegion(const Aws::String& regionName, bool useDualStack)
    {
      auto hash = Aws::Utils::HashingUtils::HashString(regionName.c_str());
      
      Aws::StringStream ss;
      ss << "clouddirectory" << ".";
  
      if(useDualStack)
      {
        ss << "dualstack.";
      }
  
      ss << regionName << ".amazonaws.com";
      
      if (hash == CN_NORTH_HASH || hash == CN_NORTHWEST_1_HASH)
      {
        ss << ".cn"; 
      }
      
      return ss.str();
    }
  
  } // namespace CloudDirectoryEndpoint
  } // namespace CloudDirectory
  } // namespace Aws
  
  