def _locked_selectfs(self, op, path):
if op == 'create':
command = [
'selectfs', self.fs_name, '\n', 'ssc', '127.0.0.1',
'console-context', '--evs', self.evs_id, 'mkdir', '-p', path
]
try:
self._execute(command)
except processutils.ProcessExecutionError as e:
if "Current file system invalid: VolumeNotFound" in e.stderr:
msg = _("Command to create directory %s failed due to "
"context change.") % path
LOG.debug(msg)
raise exception.HNASSSCContextChange(msg=msg)
else:
msg = _("Failed to create directory %s.") % path
LOG.exception(msg)
raise exception.HNASBackendException(msg=msg)
if op == 'delete':
command = [
'selectfs', self.fs_name, '\n', 'ssc', '127.0.0.1',
'console-context', '--evs', self.evs_id, 'rmdir', path
]
try:
self._execute(command)
except processutils.ProcessExecutionError as e:
if 'DirectoryNotEmpty' in e.stderr:
msg = _("Share %s has more snapshots.") % path
LOG.debug(msg)
raise exception.HNASDirectoryNotEmpty(msg=msg)
elif 'cannot remove' in e.stderr and 'NotFound' in e.stderr:
LOG.warning(
"Attempted to delete path %s but it does "
"not exist.", path)
elif 'Current file system invalid: VolumeNotFound' in e.stderr:
msg = _("Command to delete empty directory %s failed due "
"to context change.") % path
LOG.debug(msg)
raise exception.HNASSSCContextChange(msg=msg)
else:
msg = _("Failed to delete directory %s.") % path
LOG.exception(msg)
raise exception.HNASBackendException(msg=msg)
def create_directory(self, dest_path):
self._locked_selectfs('create', dest_path)
if not self.check_directory(dest_path):
msg = _("Command to create directory %(path)s was run in another "
"filesystem instead of %(fs)s.") % {
'path': dest_path,
'fs': self.fs_name,
}
LOG.warning(msg)
raise exception.HNASSSCContextChange(msg=msg)
def delete_directory(self, path):
try:
self._locked_selectfs('delete', path)
except exception.HNASDirectoryNotEmpty:
pass
else:
if self.check_directory(path):
msg = _("Command to delete empty directory %(path)s was run in"
" another filesystem instead of %(fs)s.") % {
'path': path,
'fs': self.fs_name,
}
LOG.debug(msg)
raise exception.HNASSSCContextChange(msg=msg)