FileAttribute and PosixFilePermissions|java.nio.file.attribute API
November 27, 2013
Usage of PosixFilePermissions.fromString()
Suppose we have to provides permission as below.Owner: READ, Write, EXECUTE Group: READ, EXECUTE Others: EXECUTEThen the 9 character permission string would like rwxr-x--x. In the string
r represents Read w represents Write x represents ExecutePosixFilePermissions.asFileAttribute() method accepts file permission and returns FileAttribute.
Example of FileAttribute with PosixFilePermissions
package com.concretepage.io.file;
import java.nio.file.attribute.FileAttribute;
import java.nio.file.attribute.PosixFilePermission;
import java.nio.file.attribute.PosixFilePermissions;
import java.util.Set;
public class PosixFilePermissionsExample {
public static void main(String[] args) {
Set<PosixFilePermission> perms = PosixFilePermissions.fromString("rwxr-x--x");
FileAttribute<Set<PosixFilePermission>> fileAttributes = PosixFilePermissions.asFileAttribute(perms);
System.out.println(fileAttributes.value());
}
}
Output
[OTHERS_EXECUTE, GROUP_EXECUTE, OWNER_EXECUTE, GROUP_READ, OWNER_WRITE, OWNER_READ]
