package org.codehaus.plexus.util;
   
   /*
    * Copyright The Codehaus Foundation.
    *
    * 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.
   */
  
  import java.io.File;
  import java.util.ArrayList;
  import java.util.List;
  
  class WalkCollector implements DirectoryWalkListener {
      public List<File> steps;
  
      public File startingDir;
  
      public int startCount;
  
      public int finishCount;
  
      public int percentageLow;
  
      public int percentageHigh;
  
      /**
       * <p>Constructor for WalkCollector.</p>
       */
      public WalkCollector() {
          steps = new ArrayList<File>();
          startCount = 0;
          finishCount = 0;
          percentageLow = 0;
          percentageHigh = 0;
      }
  
      /** {@inheritDoc} */
      public void directoryWalkStarting(File basedir) {
          debug("Walk Starting: " + basedir);
          startCount++;
          startingDir = basedir;
      }
  
      /** {@inheritDoc} */
      public void directoryWalkStep(int percentage, File file) {
          percentageLow = Math.min(percentageLow, percentage);
          percentageHigh = Math.max(percentageHigh, percentage);
          debug("Walk Step: [" + percentage + "%] " + file);
          steps.add(file);
      }
  
      /**
       * <p>directoryWalkFinished.</p>
       */
      public void directoryWalkFinished() {
          debug("Walk Finished.");
          finishCount++;
      }
  
      /** {@inheritDoc} */
      public void debug(String message) {
          System.out.println(message);
      }
  }