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Viewing changes to bzrlib/xml_serializer.py

  • Committer: Jelmer Vernooij
  • Date: 2009-04-02 15:28:11 UTC
  • mto: This revision was merged to the branch mainline in revision 4253.
  • Revision ID: jelmer@samba.org-20090402152811-0uxng6q5kseoug7q
Add new module with generic serializer information; keep XML-specific bits in 
xml_serializer.

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bzrlib/xml_serializer.py
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# importing this module is fairly slow because it has to load several
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# ElementTree bits
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from bzrlib import registry
 
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from bzrlib.serializer import Serializer
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from bzrlib.trace import mutter, warning
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try:
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from bzrlib import errors
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class Serializer(object):
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    """Abstract object serialize/deserialize"""
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    def write_inventory(self, inv, f):
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        """Write inventory to a file"""
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        raise NotImplementedError(self.write_inventory)
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    def write_inventory_to_string(self, inv):
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        raise NotImplementedError(self.write_inventory_to_string)
 
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class XMLSerializer(Serializer):
 
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    """Abstract XML object serialize/deserialize"""
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    def read_inventory_from_string(self, xml_string, revision_id=None,
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                                   entry_cache=None):
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        elementtree.ElementTree._raise_serialization_error(text)
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elementtree.ElementTree._escape_cdata = _escape_cdata
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class SerializerRegistry(registry.Registry):
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    """Registry for serializer objects"""
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format_registry = SerializerRegistry()
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format_registry.register_lazy('4', 'bzrlib.xml4', 'serializer_v4')
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format_registry.register_lazy('5', 'bzrlib.xml5', 'serializer_v5')
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format_registry.register_lazy('6', 'bzrlib.xml6', 'serializer_v6')
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format_registry.register_lazy('7', 'bzrlib.xml7', 'serializer_v7')
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format_registry.register_lazy('8', 'bzrlib.xml8', 'serializer_v8')