Test.java Source code

Introduction

Here is the source code for Test.java

Source

import java.io.IOException;
import java.nio.file.FileAlreadyExistsException;
import java.nio.file.FileVisitOption;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.EnumSet;

public class Test {

    public static void main(String[] args) {
        try {
            Path source = Paths.get("/home");
            Path target = Paths.get("/backup");
            Files.walkFileTree(source, EnumSet.of(FileVisitOption.FOLLOW_LINKS), Integer.MAX_VALUE,
                    new CopyDirectory(source, target));
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }
}

class CopyDirectory extends SimpleFileVisitor<Path> {

    private Path source;
    private Path target;

    public CopyDirectory(Path source, Path target) {
        this.source = source;
        this.target = target;
    }

    @Override
    public FileVisitResult visitFile(Path file, BasicFileAttributes attributes) throws IOException {
        System.out.println("Copying " + source.relativize(file));
        Files.copy(file, target.resolve(source.relativize(file)));
        return FileVisitResult.CONTINUE;
    }

    @Override
    public FileVisitResult preVisitDirectory(Path directory, BasicFileAttributes attributes) throws IOException {
        Path targetDirectory = target.resolve(source.relativize(directory));
        try {
            System.out.println("Copying " + source.relativize(directory));
            Files.copy(directory, targetDirectory);
        } catch (FileAlreadyExistsException e) {
            if (!Files.isDirectory(targetDirectory)) {
                throw e;
            }
        }
        return FileVisitResult.CONTINUE;
    }
}