most of the test fail, but search works

Question about the task

Resolved

Hi, I tested the solution below with the following assumptions: 1) All search criterias must be met (logical AND); 2) Directory is added to foundFiles only when is not searched for content Please, help me to figure out what's wrong. Thank you!

Let's implement a configurable file search within a directory.
Look over the java.nio.file.FileVisitor interface and its superclass's implementation java.nio.file.SimpleFileVisitor.
When searching a file tree using the Files.walkFileTree(Path start, FileVisitor<? super Path> visitor) method,
we use the FileVisitor object to perform the required operations on the found Path objects.

Our search class will be called SearchFileVisitor and will extend SimpleFileVisitor.

You can search using the following criteria:
- a term found in the file name (String);
- a term found in the file's contents (String);
- a maximum or minimum file size (int).
You can specify several criteria at the same time.

I wrote code in main that uses the ready-to-use SearchFileVisitor to search for files. All you have to do is implement it. Simple!
Hint 1: The get... and set... methods are getters and setters. The search class's main logic is performed in the visitFile(Path file, BasicFileAttributes attrs) method.
Hint 2: Only use classes from the java.nio package to work with files.

Requirements:

In the SearchFileVisitor class, you need to create partOfName, partOfContent, minSize, and maxSize fields, as well as the corresponding setters.
In the SearchFileVisitor class, you need to create a foundFiles field and a corresponding getter. The field must be initialized immediately.
If a partOfName search criterion is passed to SearchFileVisitor, the visitFile method must add the file to foundFiles if the name contains the value of partOfName.
If a partOfContent search criterion is passed to SearchFileVisitor, the visitFile method must add the file to foundFiles if the file's contents contain the value of partOfContent.
If a maxSize search criterion is passed to SearchFileVisitor, the visitFile method must add the file to foundFiles if the file size is less than maxSize.
If a minSize search criterion is passed to SearchFileVisitor, the visitFile method must add the file to foundFiles if the file size is greater than minSize.
The visitFile method's implementation must allow for several search criteria to be passed at the same time.

package com.codegym.task.task31.task3111; import java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; import java.util.List; /* Advanced file search */ public class Solution { public static void main(String[] args) throws IOException { SearchFileVisitor searchFileVisitor = new SearchFileVisitor(); // searchFileVisitor.setPartOfName("ion"); searchFileVisitor.setPartOfContent("456"); //searchFileVisitor.setMinSize(1); //searchFileVisitor.setMaxSize(1); Files.walkFileTree(Paths.get("/Users/baurzhan/Downloads"), searchFileVisitor); List<Path> foundFiles = searchFileVisitor.getFoundFiles(); for (Path file : foundFiles) { System.out.println(file); } } }

Comments (3)

Popular
New
Old

You must be signed in to leave a comment

Kamil

Level 31 , Near Warsaw, Poland

19 August 2020, 06:09

useful

file.toFile()

makes you import java.io.File class and in requirements you have specifically written "only java.nio" Workaround for this is FileChannel class, here's the code:

private int fileLength(Path file) throws IOException {
       FileChannel channel = FileChannel.open(file);
       int fileSize = (int) channel.size();
       channel.close();
       return fileSize;
   }

Baurzhan Konurbayev

Level 40

19 August 2020, 22:44

Thank you for the hint! It helped. I actually used all methods from java.nio.file.Files.

Kamil

Level 31 , Near Warsaw, Poland

28 August 2020, 06:12

You can mark my answer as solution. Would be appreciated! Thank you.