Class PermissionUtils

java.lang.Object
org.apache.tools.ant.util.PermissionUtils

public class PermissionUtils extends Object
Contains helper methods for dealing with PosixFilePermission or the traditional Unix mode representation of permissions.
Since:
Ant 1.10.0
  • Method Details

    • modeFromPermissions

      public static int modeFromPermissions(Set<PosixFilePermission> permissions, PermissionUtils.FileType type)
      Translates a set of permissions into a Unix stat(2) st_mode result.
      Parameters:
      permissions - the permissions
      type - the file type
      Returns:
      the "mode"
    • permissionsFromMode

      public static Set<PosixFilePermission> permissionsFromMode(int mode)
      Translates a Unix stat(2) st_mode compatible value into a set of permissions.
      Parameters:
      mode - the "mode"
      Returns:
      set of permissions
    • setPermissions

      public static void setPermissions(Resource r, Set<PosixFilePermission> permissions, Consumer<Path> posixNotSupportedCallback) throws IOException
      Sets permissions on a Resource - doesn't do anything for unsupported resource types.

      Supported types are:

      Parameters:
      r - the resource to set permissions for
      permissions - the permissions
      posixNotSupportedCallback - optional callback that is invoked for a file provider resource if the file-system holding the file doesn't support PosixFilePermissions. The Path corresponding to the file is passed to the callback.
      Throws:
      IOException - if something goes wrong
    • getPermissions

      public static Set<PosixFilePermission> getPermissions(Resource r, Function<Path,Set<PosixFilePermission>> posixNotSupportedFallback) throws IOException
      Sets permissions of a Resource - returns an empty set for unsupported resource types or file systems that don't support PosixFilePermissions and no fallback has been provided..

      Supported types are:

      Parameters:
      r - the resource to read permissions from
      posixNotSupportedFallback - optional fallback function to provide permissions for file system that don't support PosixFilePermissions. The Path corresponding to the file is passed to the callback.
      Returns:
      the permissions
      Throws:
      IOException - if something goes wrong