package com.atlassian.plugin.util;
   
   import com.atlassian.plugin.util.zip.UrlUnzipper;
   
   import java.io.File;
   import java.io.IOException;
   import java.net.URL;
   
   import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public class FileUtils
  {
      private static final Logger log = LoggerFactory.getLogger(FileUtils.class);
  
      /**
       * Extract the zip from the URL into the destination directory, but only if the contents haven't already been
       * unzipped.  If the directory contains different contents than the zip, the directory is cleaned out
       * and the files are unzipped.
       *
       * @param zipUrl The zip url
       * @param destDir The destination directory for the zip contents
       */
      public static void conditionallyExtractZipFile(URL zipUrl, File destDir)
      {
          try
          {
              UrlUnzipper unzipper = new UrlUnzipper(zipUrl, destDir);
              unzipper.conditionalUnzip();
          }
          catch (IOException e)
          {
              log.error("Found " + zipUrl + ", but failed to read file", e);
          }
      }
  
      /**
       * If possible, return the File equivalent of a URL.
       * @return the file, or null if it does not represent a file
       * @deprecated Since 3.0. Use Commons IO {@link org.apache.commons.io.FileUtils#toFile(java.net.URL)} instead.
       */
      @Deprecated
      public static File toFile(final URL url)
      {
          if (!"file".equalsIgnoreCase(url.getProtocol())) {
              return null;
          }
  
          return org.apache.commons.io.FileUtils.toFile(url);
      }
  
      /**
       * @deprecated Since 2.0.0. Use Commons IO {@link org.apache.commons.io.FileUtils#deleteDirectory(java.io.File)} instead.
       */
      @Deprecated
      public static void deleteDir(File directory)
      {
          try
          {
              org.apache.commons.io.FileUtils.deleteDirectory(directory);
          } catch (IOException e)
          {
              log.error("Unable to delete directory: "+directory.getAbsolutePath(), e);
          }
      }
  
  }