com.github.jscancella.internal.PathUtils Maven / Gradle / Ivy

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This is a software library intended to support the creation, manipulation, and validation of "bags" from the bagit specification. It currently supports version 0.93 through 1.0.

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package com.github.jscancella.internal;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.attribute.DosFileAttributes;

/**
 * Responsible for providing some very basic functionality across multiple packages.
 */
public interface PathUtils {
  /**
   * Needed to get rid of findbugs "dodgy code warnings" in regards to getting the filename of a path as a string
   * 
   * @param path the path that you which to get the filename as a string
   * 
   * @return the filename or an empty string
   */
  static String getFilename(final Path path){
    String filename = "";
    if(path != null){
      final Path filenamePath = path.getFileName();
      if(filenamePath != null){
        filename = filenamePath.toString();
      }
    }
    
    return filename;
  }
  
  /**
   * Due to the way that windows handles hidden files vs. *nix 
   * we use this method to determine if a file or folder is really hidden
   * 
   * @param path the file or folder to check if hidden
   * 
   * @return if the file or folder is hidden
   * 
   * @throws IOException if there is an error reading the file/folder
   */
  static boolean isHidden(final Path path) throws IOException{
    //cause Files.isHidden() doesn't work properly for windows if the file is a directory
    boolean isHidden = Files.isHidden(path);
    
    if (System.getProperty("os.name").contains("Windows")){
      isHidden = Files.readAttributes(path, DosFileAttributes.class).isHidden() || Files.isHidden(path);
    }

    return isHidden;
  }
}