CODEWITHSUNDEEP
javapathfilepath
Actine
Actine

Reputation: 2917

How to get a clean absolute file path in Java regardless of OS?

Here's the problem. After some concatenations I may happen to have a string like this

"C:/shared_resources/samples\\import_packages\\catalog.zip"

or even this

"C:/shared_resources/samples/subfolder/..\\import_packages\\catalog.zip"

I want to have some code that will convert such string into a path with uniform separators.

The first solution that comes to mind is using new File(srcPath).getCanonicalPath(), however here's the tricky part. This method relies on the system where the tests are invoked. However I need to pass the string to a remote machine (Selenium Grid node with a browser there), and the systems here and there are Linux and Windows respectively. Therefore trying to do new File("C:/shared_resources/samples\\import_packages\\catalog.zip").getCanonicalPath() results in something like "/home/username/ourproject/C:/shared_resources/samples/import_packages/catalog.zip". And using blunt regex replacement doesn't seem a very good solution too.

Is there a way just to prune the path and make delimiters uniform (and possibly resolving ..'s) without trying to implicitly absolutize it?

Upvotes: 27

Views: 42161

Answers (4)

stippi
stippi

Reputation: 925

You can use:

Path absolutePath = path.toAbsolutePath().normalize();

... at least to eliminate the redundant relative sections. As the documentation for normalize() mentions, in case that an eliminated node of the path was actually a link, then the resolved file may be different, or no longer be resolvable.

Upvotes: 8

yegor256
yegor256

Reputation: 105063

Try FilenameUtils.normalize() from Apache commons-io

Upvotes: 0

Dragan Menoski
Dragan Menoski

Reputation: 1102

Try with this: 

import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;

public class Main {
    public static void main(String[] args) throws IOException {
        Path path = Paths.get("myFile.txt");
        Path absolutePath = path.toAbsolutePath();

        System.out.println(absolutePath.toString());
    }
}

Upvotes: 31

Hydroid
Hydroid

Reputation: 109

for example here is your path:

String jarName = "C:/shared_resources/samples\\import_packages\\catalog.zip"
jarName.replaceAll("/", "\\");
jarName.replaceAll("..", "/");

Upvotes: -4

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