/*
    * This file is part of ***  M y C o R e  ***
    * See http://www.mycore.de/ for details.
    *
    * MyCoRe is free software: you can redistribute it and/or modify
    * it under the terms of the GNU General Public License as published by
    * the Free Software Foundation, either version 3 of the License, or
    * (at your option) any later version.
    *
   * MyCoRe is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with MyCoRe.  If not, see <http://www.gnu.org/licenses/>.
   */
  
  package org.mycore.datamodel.niofs.utils;
  
  import java.io.IOException;
  import java.nio.file.FileVisitResult;
  import java.nio.file.FileVisitor;
  import java.nio.file.attribute.BasicFileAttributes;
  import java.util.ArrayList;
  
  public class MCRFileCollectingFileVisitor<T> implements FileVisitor<T> {
  
      private final ArrayList<T> paths;
  
      public MCRFileCollectingFileVisitor() {
          paths = new ArrayList<>();
      }
  
      public ArrayList<T> getPaths() {
          return paths;
      }
  
      @Override
      public FileVisitResult preVisitDirectory(T dir, BasicFileAttributes attrs) throws IOException {
          return FileVisitResult.CONTINUE;
      }
  
      @Override
      public FileVisitResult visitFile(T file, BasicFileAttributes attrs) throws IOException {
          paths.add(file);
          return FileVisitResult.CONTINUE;
      }
  
      @Override
      public FileVisitResult visitFileFailed(T file, IOException exc) throws IOException {
          return FileVisitResult.TERMINATE;
      }
  
      @Override
      public FileVisitResult postVisitDirectory(T dir, IOException exc) throws IOException {
          return FileVisitResult.CONTINUE;
      }
  }