/usr/lib/python2.7/dist-packages/suds/xsd/doctor.py is in python-suds 0.4.1-15.
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# it under the terms of the (LGPL) GNU Lesser General Public License as
# published by the Free Software Foundation; either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Library Lesser General Public License for more details at
# ( http://www.gnu.org/licenses/lgpl.html ).
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
# written by: Jeff Ortel ( jortel@redhat.com )
"""
The I{doctor} module provides classes for fixing broken (sick)
schema(s).
"""
from logging import getLogger
from suds.sax import splitPrefix, Namespace
from suds.sax.element import Element
from suds.plugin import DocumentPlugin, DocumentContext
log = getLogger(__name__)
class Doctor:
"""
Schema Doctor.
"""
def examine(self, root):
"""
Examine and repair the schema (if necessary).
@param root: A schema root element.
@type root: L{Element}
"""
pass
class Practice(Doctor):
"""
A collection of doctors.
@ivar doctors: A list of doctors.
@type doctors: list
"""
def __init__(self):
self.doctors = []
def add(self, doctor):
"""
Add a doctor to the practice
@param doctor: A doctor to add.
@type doctor: L{Doctor}
"""
self.doctors.append(doctor)
def examine(self, root):
for d in self.doctors:
d.examine(root)
return root
class TnsFilter:
"""
Target Namespace filter.
@ivar tns: A list of target namespaces.
@type tns: [str,...]
"""
def __init__(self, *tns):
"""
@param tns: A list of target namespaces.
@type tns: [str,...]
"""
self.tns = []
self.add(*tns)
def add(self, *tns):
"""
Add I{targetNamesapces} to be added.
@param tns: A list of target namespaces.
@type tns: [str,...]
"""
self.tns += tns
def match(self, root, ns):
"""
Match by I{targetNamespace} excluding those that
are equal to the specified namespace to prevent
adding an import to itself.
@param root: A schema root.
@type root: L{Element}
"""
tns = root.get('targetNamespace')
if len(self.tns):
matched = ( tns in self.tns )
else:
matched = 1
itself = ( ns == tns )
return ( matched and not itself )
class Import:
"""
An <xs:import/> to be applied.
@cvar xsdns: The XSD namespace.
@type xsdns: (p,u)
@ivar ns: An import namespace.
@type ns: str
@ivar location: An optional I{schemaLocation}.
@type location: str
@ivar filter: A filter used to restrict application to
a particular schema.
@type filter: L{TnsFilter}
"""
xsdns = Namespace.xsdns
def __init__(self, ns, location=None):
"""
@param ns: An import namespace.
@type ns: str
@param location: An optional I{schemaLocation}.
@type location: str
"""
self.ns = ns
self.location = location
self.filter = TnsFilter()
def setfilter(self, filter):
"""
Set the filter.
@param filter: A filter to set.
@type filter: L{TnsFilter}
"""
self.filter = filter
def apply(self, root):
"""
Apply the import (rule) to the specified schema.
If the schema does not already contain an import for the
I{namespace} specified here, it is added.
@param root: A schema root.
@type root: L{Element}
"""
if not self.filter.match(root, self.ns):
return
if self.exists(root):
return
node = Element('import', ns=self.xsdns)
node.set('namespace', self.ns)
if self.location is not None:
node.set('schemaLocation', self.location)
log.debug('inserting: %s', node)
root.insert(node)
def add(self, root):
"""
Add an <xs:import/> to the specified schema root.
@param root: A schema root.
@type root: L{Element}
"""
node = Element('import', ns=self.xsdns)
node.set('namespace', self.ns)
if self.location is not None:
node.set('schemaLocation', self.location)
log.debug('%s inserted', node)
root.insert(node)
def exists(self, root):
"""
Check to see if the <xs:import/> already exists
in the specified schema root by matching I{namesapce}.
@param root: A schema root.
@type root: L{Element}
"""
for node in root.children:
if node.name != 'import':
continue
ns = node.get('namespace')
if self.ns == ns:
return 1
return 0
class ImportDoctor(Doctor, DocumentPlugin):
"""
Doctor used to fix missing imports.
@ivar imports: A list of imports to apply.
@type imports: [L{Import},...]
"""
def __init__(self, *imports):
"""
"""
self.imports = []
self.add(*imports)
def add(self, *imports):
"""
Add a namesapce to be checked.
@param imports: A list of L{Import} objects.
@type imports: [L{Import},..]
"""
self.imports += imports
def examine(self, node):
for imp in self.imports:
imp.apply(node)
def parsed(self, context):
node = context.document
# xsd root
if node.name == 'schema' and Namespace.xsd(node.namespace()):
self.examine(node)
return
# look deeper
context = DocumentContext()
for child in node:
context.document = child
self.parsed(context)
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