com.palantir.giraffe.file.base.attribute

Class ChmodFilePermissions

java.lang.Object

com.palantir.giraffe.file.base.attribute.ChmodFilePermissions

public final class ChmodFilePermissions
extends Object

Converts PosixFilePermissions to and from representations used by the chmod command and system call.

Method Summary

Modifier and Type	Method and Description
static int	toBits(Set<PosixFilePermission> permissions) Converts the specified PosixFilePermission set into a bit field representation.
static String	toMode(PermissionChange change, Set<PosixFilePermission> permissions) Converts the specified PosixFilePermission set and change type into a chmod mode string.
static Set<PosixFilePermission>	toPermissions(int bits) Converts the specified bit field representation into a PosixFilePermission set.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

toPermissions

public static Set<PosixFilePermission> toPermissions(int bits)

Converts the specified bit field representation into a PosixFilePermission set. Unknown bits are ignored.

Parameters:

bits - the bit field representation of the permissions. Octal notation is traditionally used when specifying the bit field directly.

toBits

public static int toBits(Set<PosixFilePermission> permissions)

Converts the specified PosixFilePermission set into a bit field representation.

Parameters:

permissions - the set of permissions

toMode

public static String toMode(PermissionChange change,
                            Set<PosixFilePermission> permissions)

Converts the specified PosixFilePermission set and change type into a chmod mode string.

Parameters:

change - the type of change

permissions - the permissions to change

Returns:

a mode string representing the specified permissions change

Throws:

IllegalArgumentException - if permissions is empty and change is not PermissionChange.SET