+ def set_subvolume_snapshot_metadata(self, **kwargs):
+ ret = 0, "", ""
+ volname = kwargs['vol_name']
+ subvolname = kwargs['sub_name']
+ snapname = kwargs['snap_name']
+ groupname = kwargs['group_name']
+ keyname = kwargs['key_name']
+ value = kwargs['value']
+
+ try:
+ with open_volume(self, volname) as fs_handle:
+ with open_group(fs_handle, self.volspec, groupname) as group:
+ with open_subvol(self.mgr, fs_handle, self.volspec, group, subvolname, SubvolumeOpType.SNAP_METADATA_SET) as subvolume:
+ if not snapname.encode('utf-8') in subvolume.list_snapshots():
+ raise VolumeException(-errno.ENOENT, "snapshot '{0}' does not exist".format(snapname))
+ subvolume.set_snapshot_metadata(snapname, keyname, value)
+ except VolumeException as ve:
+ ret = self.volume_exception_to_retval(ve)
+ return ret
+
+ def get_subvolume_snapshot_metadata(self, **kwargs):
+ ret = 0, "", ""
+ volname = kwargs['vol_name']
+ subvolname = kwargs['sub_name']
+ snapname = kwargs['snap_name']
+ groupname = kwargs['group_name']
+ keyname = kwargs['key_name']
+
+ try:
+ with open_volume(self, volname) as fs_handle:
+ with open_group(fs_handle, self.volspec, groupname) as group:
+ with open_subvol(self.mgr, fs_handle, self.volspec, group, subvolname, SubvolumeOpType.SNAP_METADATA_GET) as subvolume:
+ if not snapname.encode('utf-8') in subvolume.list_snapshots():
+ raise VolumeException(-errno.ENOENT, "snapshot '{0}' does not exist".format(snapname))
+ value = subvolume.get_snapshot_metadata(snapname, keyname)
+ ret = 0, value, ""
+ except VolumeException as ve:
+ ret = self.volume_exception_to_retval(ve)
+ return ret
+
+ def list_subvolume_snapshot_metadata(self, **kwargs):
+ ret = 0, "", ""
+ volname = kwargs['vol_name']
+ subvolname = kwargs['sub_name']
+ snapname = kwargs['snap_name']
+ groupname = kwargs['group_name']
+
+ try:
+ with open_volume(self, volname) as fs_handle:
+ with open_group(fs_handle, self.volspec, groupname) as group:
+ with open_subvol(self.mgr, fs_handle, self.volspec, group, subvolname, SubvolumeOpType.SNAP_METADATA_LIST) as subvolume:
+ if not snapname.encode('utf-8') in subvolume.list_snapshots():
+ raise VolumeException(-errno.ENOENT, "snapshot '{0}' does not exist".format(snapname))
+ snap_metadata_dict = subvolume.list_snapshot_metadata(snapname)
+ ret = 0, json.dumps(snap_metadata_dict, indent=4, sort_keys=True), ""
+ except VolumeException as ve:
+ ret = self.volume_exception_to_retval(ve)
+ return ret
+
+ def remove_subvolume_snapshot_metadata(self, **kwargs):
+ ret = 0, "", ""
+ volname = kwargs['vol_name']
+ subvolname = kwargs['sub_name']
+ snapname = kwargs['snap_name']
+ groupname = kwargs['group_name']
+ keyname = kwargs['key_name']
+ force = kwargs['force']
+
+ try:
+ with open_volume(self, volname) as fs_handle:
+ with open_group(fs_handle, self.volspec, groupname) as group:
+ with open_subvol(self.mgr, fs_handle, self.volspec, group, subvolname, SubvolumeOpType.SNAP_METADATA_REMOVE) as subvolume:
+ if not snapname.encode('utf-8') in subvolume.list_snapshots():
+ raise VolumeException(-errno.ENOENT, "snapshot '{0}' does not exist".format(snapname))
+ subvolume.remove_snapshot_metadata(snapname, keyname)
+ except VolumeException as ve:
+ if not (ve.errno == -errno.ENOENT and force):
+ ret = self.volume_exception_to_retval(ve)
+ return ret
+