text: /*
   * Copyright (C) 2012 BMW Car IT GmbH
   *
   * 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.
   */
  
  #ifndef CAPU_FILETRAVERSER_H
  #define CAPU_FILETRAVERSER_H
  
  #include "capu/os/File.h"
  #include "capu/os/FileSystemIterator.h"
  #include "capu/util/IFileVisitor.h"
  
  namespace capu
  {
      /**
      * Utility class to walk over a file tree using the visitor pattern.
      */
      class FileTraverser
      {
      public:
  
          /**
          * Starts a new traversal inside the given directory. Will not visit the directory itself.
          * @param directory The directory in which the traversal should start.
          * @param visitor The visitor which get's called for each file or folder inside the given directory.
          * @return Return code if traversal was successful.
          */
          static status_t accept(capu::File directory, IFileVisitor& visitor);
      };
  
      inline status_t FileTraverser::accept(capu::File directory, IFileVisitor& visitor)
      {
          capu::FileSystemIterator iter(directory);
  
          status_t result = CAPU_OK;
          while (iter.isValid())
          {
              bool stepIntoDirectory = true;
              result = visitor.visit(*iter, stepIntoDirectory);
              if (result == CAPU_ERROR)
              {
                  // user abort
                  return result;
              }
  
              iter.setStepIntoSubdirectories(stepIntoDirectory);
              iter.next();
          }
          return result;
      }
  }
  
  #endif // CAPU_FILETRAVERSER_H
  