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87 lines
2.9 KiB
87 lines
2.9 KiB
14 years ago
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the (LGPL) GNU Lesser General Public License as
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# published by the Free Software Foundation; either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Library Lesser General Public License for more details at
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# ( http://www.gnu.org/licenses/lgpl.html ).
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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# written by: Jeff Ortel ( jortel@redhat.com )
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"""
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The I{schema} module provides a intelligent representation of
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an XSD schema. The I{raw} model is the XML tree and the I{model}
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is the denormalized, objectified and intelligent view of the schema.
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Most of the I{value-add} provided by the model is centered around
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tranparent referenced type resolution and targeted denormalization.
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"""
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from logging import getLogger
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from suds import *
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from suds.sax import Namespace, splitPrefix
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log = getLogger(__name__)
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def qualify(ref, resolvers, defns=Namespace.default):
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"""
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Get a reference that is I{qualified} by namespace.
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@param ref: A referenced schema type name.
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@type ref: str
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@param resolvers: A list of objects to be used to resolve types.
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@type resolvers: [L{sax.element.Element},]
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@param defns: An optional target namespace used to qualify references
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when no prefix is specified.
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@type defns: A default namespace I{tuple: (prefix,uri)} used when ref not prefixed.
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@return: A qualified reference.
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@rtype: (name, namespace-uri)
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"""
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ns = None
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p, n = splitPrefix(ref)
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if p is not None:
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if not isinstance(resolvers, (list, tuple)):
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resolvers = (resolvers,)
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for r in resolvers:
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resolved = r.resolvePrefix(p)
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if resolved[1] is not None:
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ns = resolved
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break
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if ns is None:
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raise Exception('prefix (%s) not resolved' % p)
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else:
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ns = defns
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return (n, ns[1])
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def isqref(object):
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"""
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Get whether the object is a I{qualified reference}.
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@param object: An object to be tested.
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@type object: I{any}
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@rtype: boolean
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@see: L{qualify}
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"""
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return (\
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isinstance(object, tuple) and \
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len(object) == 2 and \
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isinstance(object[0], basestring) and \
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isinstance(object[1], basestring))
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class Filter:
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def __init__(self, inclusive=False, *items):
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self.inclusive = inclusive
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self.items = items
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def __contains__(self, x):
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if self.inclusive:
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result = ( x in self.items )
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else:
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result = ( x not in self.items )
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return result
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