36 lines
1.2 KiB
Python
36 lines
1.2 KiB
Python
# CORE
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# Copyright (c) 2014 The Boeing Company.
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# See the LICENSE file included in this distribution.
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from xml.dom.minidom import parse
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from xmlutils import getoneelement
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from xmlparser0 import CoreDocumentParser0
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class CoreVersionParser(object):
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'''\
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Helper class to check the version of Network Plan document. This
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simply looks for a "Scenario" element; when present, this
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indicates a 0.0 version document. The dom member is set in order
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to prevent parsing a file twice (it can be passed to the
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appropriate CoreDocumentParser class.)
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'''
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def __init__(self, filename, options={}):
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if 'dom' in options:
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self.dom = options['dom']
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else:
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self.dom = parse(filename)
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self.scenario = getoneelement(self.dom, 'Scenario')
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if self.scenario is not None:
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self.version = 0.0
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else:
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self.version = 'unknown'
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def core_document_parser(session, filename, options):
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vp = CoreVersionParser(filename, options)
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if 'dom' not in options:
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options['dom'] = vp.dom
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if vp.version == 0.0:
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doc = CoreDocumentParser0(session, filename, options)
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else:
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raise ValueError, 'unsupported document version: %s' % vp.version
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return doc
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