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100 lines
3.3 KiB
Python
100 lines
3.3 KiB
Python
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#
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# __init__.py for Dynamic Serialize adapters.
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#
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# Plugins can contribute to dynamicserialize.adapters by either including their
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# classes directly in pythonPackages/dynamicserialize/adapters/ within their
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# plugin. The plugin's adapter will automatically be added to __all__ at runtime
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# and registered.
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# Plugins should not include a custom __init__.py in
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# pythonPackages/dynamicserialize/adapters/ because it will overwrite this file.
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# If custom package initialization is needed, a subpackage should be created
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# with an __init__.py that includes the following:
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#
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# __all__ = ['CustomAdapter1', 'CustomAdapter2']
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# from dynamicserialize.adapters import registerAdapters
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# registerAdapters(__name__, __all__)
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#
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#
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# SOFTWARE HISTORY
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#
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# Date Ticket# Engineer Description
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# ------------ ---------- ----------- --------------------------
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# 08/31/10 njensen Initial Creation.
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# 03/20/13 #1774 randerso Added TimeConstraintsAdapter
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# 04/22/13 #1949 rjpeter Added LockTableAdapter
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# 02/06/14 #2672 bsteffen Added JTSEnvelopeAdapter
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# 09/21/2015 #4486 rjpeter Added FormattedDateAdapter
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# 06/23/2016 #5696 rjpeter Added CommutativeTimestampAdapter
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# 10/17/2016 #5919 njensen Added GeomDataRespAdapter
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# 01/09/2017 #5997 nabowle Allow contribution from plugins.
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#
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__all__ = [
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'PointAdapter',
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'StackTraceElementAdapter',
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'WsIdAdapter',
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'CalendarAdapter',
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'GregorianCalendarAdapter',
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'DateAdapter',
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'FormattedDateAdapter',
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'LocalizationLevelSerializationAdapter',
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'LocalizationTypeSerializationAdapter',
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'GeometryTypeAdapter',
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'CoordAdapter',
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'TimeRangeTypeAdapter',
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'ParmIDAdapter',
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'DatabaseIDAdapter',
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'TimestampAdapter',
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'CommutativeTimestampAdapter',
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'EnumSetAdapter',
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'FloatBufferAdapter',
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'ByteBufferAdapter',
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'TimeConstraintsAdapter',
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'JTSEnvelopeAdapter'
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]
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classAdapterRegistry = {}
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def getAdapterRegistry():
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import pkgutil
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discoveredPackages = []
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# allow other plugins to contribute to adapters by dropping their adapter or
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# package into the dynamicserialize.adapters package
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for _, modname, ispkg in pkgutil.iter_modules(__path__):
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if ispkg:
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discoveredPackages.append(modname)
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else:
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if modname not in __all__:
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__all__.append(modname)
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registerAdapters(__name__, __all__)
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for pkg in discoveredPackages:
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__import__(__name__ + '.' + pkg)
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def registerAdapters(package, modules):
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import sys
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if not package.endswith('.'):
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package += '.'
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for x in modules:
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# TODO: use importlib
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exec('import ' + package + x)
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m = sys.modules[package + x]
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d = m.__dict__
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if 'ClassAdapter' in d:
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if isinstance(m.ClassAdapter, list):
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for clz in m.ClassAdapter:
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classAdapterRegistry[clz] = m
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else:
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clzName = m.ClassAdapter
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classAdapterRegistry[clzName] = m
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else:
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raise LookupError('Adapter class ' + x + ' has no ClassAdapter field ' +
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'and cannot be registered.')
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getAdapterRegistry()
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