75 lines
1.8 KiB
Python
75 lines
1.8 KiB
Python
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import json
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import lz4
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SERIALISABLE_TYPE_BASE = 0
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SERIALISABLE_TYPE_BASE_NAMED = 1
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SERIALISABLE_TYPE_SHORTCUTS = 2
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SERIALISABLE_TYPES_TO_OBJECT_TYPES = {}
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class SerialisableBase( object ):
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SERIALISABLE_TYPE = SERIALISABLE_TYPE_BASE
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VERSION = 1
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def _GetSerialisableInfo( self ):
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raise NotImplementedError()
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def _InitialiseFromSerialisableInfo( self, serialisable_info ):
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raise NotImplementedError()
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def _UpdateInfo( self, version, old_info ):
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return old_info
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def GetSerialisedInfo( self ):
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serialisable_info = self._GetSerialisableInfo()
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serialised_info = json.dumps( serialisable_info )
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compressed_serialised_info = lz4.dumps( serialised_info )
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return compressed_serialised_info
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def GetTypeAndVersion( self ):
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return ( self.SERIALISABLE_TYPE, self.VERSION )
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def InitialiseFromSerialisedInfo( self, version, compressed_serialised_info ):
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serialised_info = lz4.loads( compressed_serialised_info )
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serialisable_info = json.loads( serialised_info )
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if version != self.VERSION:
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serialisable_info = self._UpdateInfo( version, serialisable_info )
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self._InitialiseFromSerialisableInfo( serialisable_info )
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class SerialisableBaseNamed( SerialisableBase ):
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SERIALISABLE_TYPE = SERIALISABLE_TYPE_BASE_NAMED
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VERSION = 1
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def __init__( self, name ):
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SerialisableBase.__init__( self )
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self._name = name
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def GetName( self ): return self._name
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def SetName( self, name ): self._name = name
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