/brz/remove-bazaar

# Copyright (C) 2008 Canonical Ltd

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

"""Serializer object for CHK based inventory storage."""

from bzrlib import (

    inventory,

    xml5,

    xml6,

    )

class CHKSerializerSubtree(xml6.Serializer_v6):

    """A CHKInventory based serializer that supports tree references"""

    supported_kinds = set(['file', 'directory', 'symlink', 'tree-reference'])

    format_num = '9'

    revision_format_num = None

    support_altered_by_hack = False

    def _unpack_entry(self, elt):

        kind = elt.tag

        if not kind in self.supported_kinds:

            raise AssertionError('unsupported entry kind %s' % kind)

        if kind == 'tree-reference':

            file_id = elt.attrib['file_id']

            name = elt.attrib['name']

            parent_id = elt.attrib['parent_id']

            revision = elt.get('revision')

            reference_revision = elt.get('reference_revision')

            return inventory.TreeReference(file_id, name, parent_id, revision,

                                           reference_revision)

        else:

            return xml6.Serializer_v6._unpack_entry(self, elt)

    def __init__(self, node_size, search_key_name):

        self.maximum_size = node_size

        self.search_key_name = search_key_name

class CHKSerializer(xml5.Serializer_v5):

    """A CHKInventory based serializer with 'plain' behaviour."""

    format_num = '9'

    revision_format_num = None

    support_altered_by_hack = False

    def __init__(self, node_size, search_key_name):

        self.maximum_size = node_size

        self.search_key_name = search_key_name

chk_serializer_subtree_parent_id = CHKSerializerSubtree(4096, 'plain')

chk_serializer_parent_id = CHKSerializer(4096, 'plain')

chk_serializer_16_parent_id = CHKSerializer(4096, 'hash-16-way')

chk_serializer_255_parent_id = CHKSerializer(4096, 'hash-255-way')

chk_serializer_255_bigpage = CHKSerializer(65536, 'hash-255-way')