text: ////////////////////////////////////////////////////////////////////////////////
  /// DISCLAIMER
  ///
  /// Copyright 2016 ArangoDB GmbH, Cologne, Germany
  ///
  /// 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
  ///
  ///     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.
  ///
  /// Copyright holder is ArangoDB GmbH, Cologne, Germany
  ///
  /// @author Dr. Frank Celler
  ////////////////////////////////////////////////////////////////////////////////
  
  #include "ApplicationFeatures/TempFeature.h"
  
  #include "Basics/ArangoGlobalContext.h"
  #include "Basics/files.h"
  #include "Basics/FileUtils.h"
  #include "Logger/Logger.h"
  #include "ProgramOptions/ProgramOptions.h"
  #include "ProgramOptions/Section.h"
  
  using namespace arangodb;
  using namespace arangodb::options;
  
  TempFeature::TempFeature(application_features::ApplicationServer* server,
                           std::string const& appname)
      : ApplicationFeature(server, "Temp"), _path(), _appname(appname) {
    setOptional(false);
    requiresElevatedPrivileges(false);
    startsAfter("Logger");
    startsAfter("Random");
  }
  
  void TempFeature::collectOptions(std::shared_ptr<ProgramOptions> options) {
    options->addOldOption("temp-path", "temp.path");
  
    options->addSection("temp", "Configure the temporary files");
  
    options->addOption("--temp.path", "path for temporary files",
                       new StringParameter(&_path));
  }
  
  void TempFeature::validateOptions(std::shared_ptr<ProgramOptions> options) {
    if (_path.length() > 0 ) {
      basics::FileUtils::makePathAbsolute(_path);
    }
  }
  
  void TempFeature::prepare() {
    TRI_SetApplicationName(_appname.c_str());
  }
  
  void TempFeature::start() {
    if (!_path.empty()) {
      TRI_SetUserTempPath((char*)_path.c_str());
    }
  
    // must be used after drop privileges and be called to set it to avoid raise
    // conditions
    TRI_GetTempPath();
  
    // signal that the temp path is available
    auto context = ArangoGlobalContext::CONTEXT;
  
    if (context != nullptr) {
      context->createMiniDumpFilename();
    }
  }
  