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Limnoria/others/SOAPpy/wstools/XMLSchema.py
Jeremy Fincher da8ebdb64a Upgraded google, which required upgrading SOAP.
2004-09-30 08:09:08 +00:00

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# Copyright (c) 2003, The Regents of the University of California,
# through Lawrence Berkeley National Laboratory (subject to receipt of
# any required approvals from the U.S. Dept. of Energy). All rights
# reserved.
#
# Copyright (c) 2001 Zope Corporation and Contributors. All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.0 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
ident = "$Id$"
import types, weakref, urllib, sys
from threading import RLock
from Namespaces import XMLNS
from Utility import DOM, DOMException, Collection, SplitQName
from StringIO import StringIO
def GetSchema(component):
"""convience function for finding the parent XMLSchema instance.
"""
parent = component
while not isinstance(parent, XMLSchema):
parent = parent._parent()
return parent
class SchemaReader:
"""A SchemaReader creates XMLSchema objects from urls and xml data.
"""
def __init__(self, domReader=None, base_url=None):
"""domReader -- class must implement DOMAdapterInterface
base_url -- base url string
"""
self.__base_url = base_url
self.__readerClass = domReader
if not self.__readerClass:
self.__readerClass = DOMAdapter
self._includes = {}
self._imports = {}
def __setImports(self, schema):
"""Add dictionary of imports to schema instance.
schema -- XMLSchema instance
"""
for ns,val in schema.imports.items():
if self._imports.has_key(ns):
schema.addImportSchema(self._imports[ns])
def __setIncludes(self, schema):
"""Add dictionary of includes to schema instance.
schema -- XMLSchema instance
"""
for schemaLocation, val in schema.includes.items():
if self._includes.has_key(schemaLocation):
schema.addIncludeSchema(self._imports[schemaLocation])
def addSchemaByLocation(self, location, schema):
"""provide reader with schema document for a location.
"""
self._includes[location] = schema
def addSchemaByNamespace(self, schema):
"""provide reader with schema document for a targetNamespace.
"""
self._imports[schema.targetNamespace] = schema
def loadFromNode(self, parent, element):
"""element -- DOM node or document
parent -- WSDLAdapter instance
"""
reader = self.__readerClass(element)
schema = XMLSchema(parent)
#HACK to keep a reference
schema.wsdl = parent
schema.setBaseUrl(self.__base_url)
schema.load(reader)
return schema
def loadFromStream(self, file):
"""Return an XMLSchema instance loaded from a file object.
file -- file object
"""
reader = self.__readerClass()
reader.loadDocument(file)
schema = XMLSchema()
schema.setBaseUrl(self.__base_url)
schema.load(reader)
self.__setIncludes(schema)
self.__setImports(schema)
return schema
def loadFromString(self, data):
"""Return an XMLSchema instance loaded from an XML string.
data -- XML string
"""
return self.loadFromStream(StringIO(data))
def loadFromURL(self, url):
"""Return an XMLSchema instance loaded from the given url.
url -- URL to dereference
"""
if not url.endswith('xsd'):
raise SchemaError, 'unknown file type %s' %url
reader = self.__readerClass()
if self.__base_url:
url = urllib.basejoin(self.__base_url,url)
reader.loadFromURL(url)
schema = XMLSchema()
schema.setBaseUrl(self.__base_url)
schema.load(reader)
self.__setIncludes(schema)
self.__setImports(schema)
return schema
def loadFromFile(self, filename):
"""Return an XMLSchema instance loaded from the given file.
filename -- name of file to open
"""
file = open(filename, 'rb')
try: schema = self.loadFromStream(file)
finally: file.close()
return schema
class SchemaError(Exception):
pass
###########################
# DOM Utility Adapters
##########################
class DOMAdapterInterface:
def hasattr(self, attr, ns=None):
"""return true if node has attribute
attr -- attribute to check for
ns -- namespace of attribute, by default None
"""
raise NotImplementedError, 'adapter method not implemented'
def getContentList(self, *contents):
"""returns an ordered list of child nodes
*contents -- list of node names to return
"""
raise NotImplementedError, 'adapter method not implemented'
def setAttributeDictionary(self, attributes):
"""set attribute dictionary
"""
raise NotImplementedError, 'adapter method not implemented'
def getAttributeDictionary(self):
"""returns a dict of node's attributes
"""
raise NotImplementedError, 'adapter method not implemented'
def getNamespace(self, prefix):
"""returns namespace referenced by prefix.
"""
raise NotImplementedError, 'adapter method not implemented'
def getTagName(self):
"""returns tagName of node
"""
raise NotImplementedError, 'adapter method not implemented'
def getParentNode(self):
"""returns parent element in DOMAdapter or None
"""
raise NotImplementedError, 'adapter method not implemented'
def loadDocument(self, file):
"""load a Document from a file object
file --
"""
raise NotImplementedError, 'adapter method not implemented'
def loadFromURL(self, url):
"""load a Document from an url
url -- URL to dereference
"""
raise NotImplementedError, 'adapter method not implemented'
class DOMAdapter(DOMAdapterInterface):
"""Adapter for ZSI.Utility.DOM
"""
def __init__(self, node=None):
"""Reset all instance variables.
element -- DOM document, node, or None
"""
if hasattr(node, 'documentElement'):
self.__node = node.documentElement
else:
self.__node = node
self.__attributes = None
def hasattr(self, attr, ns=None):
"""attr -- attribute
ns -- optional namespace, None means unprefixed attribute.
"""
if not self.__attributes:
self.setAttributeDictionary()
if ns:
return self.__attributes.get(ns,{}).has_key(attr)
return self.__attributes.has_key(attr)
def getContentList(self, *contents):
nodes = []
ELEMENT_NODE = self.__node.ELEMENT_NODE
for child in DOM.getElements(self.__node, None):
if child.nodeType == ELEMENT_NODE and\
SplitQName(child.tagName)[1] in contents:
nodes.append(child)
return map(self.__class__, nodes)
def setAttributeDictionary(self):
self.__attributes = {}
for v in self.__node._attrs.values():
self.__attributes[v.nodeName] = v.nodeValue
def getAttributeDictionary(self):
if not self.__attributes:
self.setAttributeDictionary()
return self.__attributes
def getTagName(self):
return self.__node.tagName
def getParentNode(self):
if self.__node.parentNode.nodeType == self.__node.ELEMENT_NODE:
return DOMAdapter(self.__node.parentNode)
return None
def getNamespace(self, prefix):
"""prefix -- deference namespace prefix in node's context.
Ascends parent nodes until found.
"""
namespace = None
if prefix == 'xmlns':
namespace = DOM.findDefaultNS(prefix, self.__node)
else:
try:
namespace = DOM.findNamespaceURI(prefix, self.__node)
except DOMException, ex:
if prefix != 'xml':
raise SchemaError, '%s namespace not declared for %s'\
%(prefix, self.__node._get_tagName())
namespace = XMLNS.XML
return namespace
def loadDocument(self, file):
self.__node = DOM.loadDocument(file)
if hasattr(self.__node, 'documentElement'):
self.__node = self.__node.documentElement
def loadFromURL(self, url):
self.__node = DOM.loadFromURL(url)
if hasattr(self.__node, 'documentElement'):
self.__node = self.__node.documentElement
class XMLBase:
""" These class variables are for string indentation.
"""
__indent = 0
__rlock = RLock()
def __str__(self):
XMLBase.__rlock.acquire()
XMLBase.__indent += 1
tmp = "<" + str(self.__class__) + '>\n'
for k,v in self.__dict__.items():
tmp += "%s* %s = %s\n" %(XMLBase.__indent*' ', k, v)
XMLBase.__indent -= 1
XMLBase.__rlock.release()
return tmp
"""Marker Interface: can determine something about an instances properties by using
the provided convenience functions.
"""
class DefinitionMarker:
"""marker for definitions
"""
pass
class DeclarationMarker:
"""marker for declarations
"""
pass
class AttributeMarker:
"""marker for attributes
"""
pass
class AttributeGroupMarker:
"""marker for attribute groups
"""
pass
class WildCardMarker:
"""marker for wildcards
"""
pass
class ElementMarker:
"""marker for wildcards
"""
pass
class ReferenceMarker:
"""marker for references
"""
pass
class ModelGroupMarker:
"""marker for model groups
"""
pass
class ExtensionMarker:
"""marker for extensions
"""
pass
class RestrictionMarker:
"""marker for restrictions
"""
facets = ['enumeration', 'length', 'maxExclusive', 'maxInclusive',\
'maxLength', 'minExclusive', 'minInclusive', 'minLength',\
'pattern', 'fractionDigits', 'totalDigits', 'whiteSpace']
class SimpleMarker:
"""marker for simple type information
"""
pass
class ComplexMarker:
"""marker for complex type information
"""
pass
class LocalMarker:
"""marker for complex type information
"""
pass
class MarkerInterface:
def isDefinition(self):
return isinstance(self, DefinitionMarker)
def isDeclaration(self):
return isinstance(self, DeclarationMarker)
def isAttribute(self):
return isinstance(self, AttributeMarker)
def isAttributeGroup(self):
return isinstance(self, AttributeGroupMarker)
def isElement(self):
return isinstance(self, ElementMarker)
def isReference(self):
return isinstance(self, ReferenceMarker)
def isWildCard(self):
return isinstance(self, WildCardMarker)
def isModelGroup(self):
return isinstance(self, ModelGroupMarker)
def isExtension(self):
return isinstance(self, ExtensionMarker)
def isRestriction(self):
return isinstance(self, RestrictionMarker)
def isSimple(self):
return isinstance(self, SimpleMarker)
def isComplex(self):
return isinstance(self, ComplexMarker)
def isLocal(self):
return isinstance(self, LocalMarker)
##########################################################
# Schema Components
#########################################################
class XMLSchemaComponent(XMLBase, MarkerInterface):
"""
class variables:
required -- list of required attributes
attributes -- dict of default attribute values, including None.
Value can be a function for runtime dependencies.
contents -- dict of namespace keyed content lists.
'xsd' content of xsd namespace.
xmlns_key -- key for declared xmlns namespace.
xmlns -- xmlns is special prefix for namespace dictionary
xml -- special xml prefix for xml namespace.
"""
required = []
attributes = {}
contents = {}
xmlns_key = ''
xmlns = 'xmlns'
xml = 'xml'
def __init__(self, parent=None):
"""parent -- parent instance
instance variables:
attributes -- dictionary of node's attributes
"""
self.attributes = None
self._parent = parent
if self._parent:
self._parent = weakref.ref(parent)
if not self.__class__ == XMLSchemaComponent\
and not (type(self.__class__.required) == type(XMLSchemaComponent.required)\
and type(self.__class__.attributes) == type(XMLSchemaComponent.attributes)\
and type(self.__class__.contents) == type(XMLSchemaComponent.contents)):
raise RuntimeError, 'Bad type for a class variable in %s' %self.__class__
def getTargetNamespace(self):
"""return targetNamespace
"""
parent = self
targetNamespace = 'targetNamespace'
tns = self.attributes.get(targetNamespace)
while not tns:
parent = parent._parent()
tns = parent.attributes.get(targetNamespace)
return tns
def getTypeDefinition(self, attribute):
"""attribute -- attribute with a QName value (eg. type).
collection -- check types collection in parent Schema instance
"""
return self.getQNameAttribute('types', attribute)
def getElementDeclaration(self, attribute):
"""attribute -- attribute with a QName value (eg. element).
collection -- check elements collection in parent Schema instance.
"""
return self.getQNameAttribute('elements', attribute)
def getQNameAttribute(self, collection, attribute):
"""returns object instance representing QName --> (namespace,name),
or if does not exist return None.
attribute -- an information item attribute, with a QName value.
collection -- collection in parent Schema instance to search.
"""
obj = None
tdc = self.attributes.get(attribute)
if tdc:
parent = GetSchema(self)
targetNamespace = tdc.getTargetNamespace()
if parent.targetNamespace == targetNamespace:
item = tdc.getName()
try:
obj = getattr(parent, collection)[item]
except KeyError, ex:
raise KeyError, "targetNamespace(%s) collection(%s) has no item(%s)"\
%(targetNamespace, collection, item)
elif parent.imports.has_key(targetNamespace):
schema = parent.imports[targetNamespace].getSchema()
item = tdc.getName()
try:
obj = getattr(schema, collection)[item]
except KeyError, ex:
raise KeyError, "targetNamespace(%s) collection(%s) has no item(%s)"\
%(targetNamespace, collection, item)
return obj
def getXMLNS(self, prefix=None):
"""deference prefix or by default xmlns, returns namespace.
"""
if prefix == XMLSchemaComponent.xml:
return XMLNS.XML
parent = self
ns = self.attributes[XMLSchemaComponent.xmlns].get(prefix or\
XMLSchemaComponent.xmlns_key)
while not ns:
parent = parent._parent()
ns = parent.attributes[XMLSchemaComponent.xmlns].get(prefix or\
XMLSchemaComponent.xmlns_key)
if not ns and isinstance(parent, WSDLToolsAdapter):
raise SchemaError, 'unknown prefix %s' %prefix
return ns
def getAttribute(self, attribute):
"""return requested attribute or None
"""
return self.attributes.get(attribute)
def setAttributes(self, node):
"""Sets up attribute dictionary, checks for required attributes and
sets default attribute values. attr is for default attribute values
determined at runtime.
structure of attributes dictionary
['xmlns'][xmlns_key] -- xmlns namespace
['xmlns'][prefix] -- declared namespace prefix
[namespace][prefix] -- attributes declared in a namespace
[attribute] -- attributes w/o prefix, default namespaces do
not directly apply to attributes, ie Name can't collide
with QName.
"""
self.attributes = {XMLSchemaComponent.xmlns:{}}
for k,v in node.getAttributeDictionary().items():
prefix,value = SplitQName(k)
if value == XMLSchemaComponent.xmlns:
self.attributes[value][prefix or XMLSchemaComponent.xmlns_key] = v
elif prefix:
ns = node.getNamespace(prefix)
if not ns:
raise SchemaError, 'no namespace for attribute prefix %s'\
%prefix
if not self.attributes.has_key(ns):
self.attributes[ns] = {}
elif self.attributes[ns].has_key(value):
raise SchemaError, 'attribute %s declared multiple times in %s'\
%(value, ns)
self.attributes[ns][value] = v
elif not self.attributes.has_key(value):
self.attributes[value] = v
else:
raise SchemaError, 'attribute %s declared multiple times' %value
self.__checkAttributes()
self.__setAttributeDefaults()
#set QNames
for k in ['type', 'element', 'base', 'ref', 'substitutionGroup', 'itemType']:
if self.attributes.has_key(k):
prefix, value = SplitQName(self.attributes.get(k))
self.attributes[k] = \
TypeDescriptionComponent((self.getXMLNS(prefix), value))
#Union, memberTypes is a whitespace separated list of QNames
for k in ['memberTypes']:
if self.attributes.has_key(k):
qnames = self.attributes[k]
self.attributes[k] = []
for qname in qnames.split():
prefix, value = SplitQName(qname)
self.attributes['memberTypes'].append(\
TypeDescriptionComponent(\
(self.getXMLNS(prefix), value)))
def getContents(self, node):
"""retrieve xsd contents
"""
return node.getContentList(*self.__class__.contents['xsd'])
def __setAttributeDefaults(self):
"""Looks for default values for unset attributes. If
class variable representing attribute is None, then
it must be defined as an instance variable.
"""
for k,v in self.__class__.attributes.items():
if v and not self.attributes.has_key(k):
if isinstance(v, types.FunctionType):
self.attributes[k] = v(self)
else:
self.attributes[k] = v
def __checkAttributes(self):
"""Checks that required attributes have been defined,
attributes w/default cannot be required. Checks
all defined attributes are legal, attribute
references are not subject to this test.
"""
for a in self.__class__.required:
if not self.attributes.has_key(a):
raise SchemaError,\
'class instance %s, missing required attribute %s'\
%(self.__class__, a)
for a in self.attributes.keys():
if (a not in (XMLSchemaComponent.xmlns, XMLNS.XML)) and\
(a not in self.__class__.attributes.keys()) and not\
(self.isAttribute() and self.isReference()):
raise SchemaError, '%s, unknown attribute' %a
class WSDLToolsAdapter(XMLSchemaComponent):
"""WSDL Adapter to grab the attributes from the wsdl document node.
"""
attributes = {'name':None, 'targetNamespace':None}
def __init__(self, wsdl):
#XMLSchemaComponent.__init__(self, None)
XMLSchemaComponent.__init__(self, parent=wsdl)
self.setAttributes(DOMAdapter(wsdl.document))
def getImportSchemas(self):
"""returns WSDLTools.WSDL types Collection
"""
return self._parent().types
class Notation(XMLSchemaComponent):
"""<notation>
parent:
schema
attributes:
id -- ID
name -- NCName, Required
public -- token, Required
system -- anyURI
contents:
annotation?
"""
required = ['name', 'public']
attributes = {'id':None, 'name':None, 'public':None, 'system':None}
contents = {'xsd':('annotation')}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
for i in contents:
component = SplitQName(i.getTagName())[1]
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
class Annotation(XMLSchemaComponent):
"""<annotation>
parent:
all,any,anyAttribute,attribute,attributeGroup,choice,complexContent,
complexType,element,extension,field,group,import,include,key,keyref,
list,notation,redefine,restriction,schema,selector,simpleContent,
simpleType,union,unique
attributes:
id -- ID
contents:
(documentation | appinfo)*
"""
attributes = {'id':None}
contents = {'xsd':('documentation', 'appinfo')}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.content = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
content = []
for i in contents:
component = SplitQName(i.getTagName())[1]
if component == 'documentation':
#print_debug('class %s, documentation skipped' %self.__class__, 5)
continue
elif component == 'appinfo':
#print_debug('class %s, appinfo skipped' %self.__class__, 5)
continue
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
self.content = tuple(content)
class Documentation(XMLSchemaComponent):
"""<documentation>
parent:
annotation
attributes:
source, anyURI
xml:lang, language
contents:
mixed, any
"""
attributes = {'source':None, 'xml:lang':None}
contents = {'xsd':('mixed', 'any')}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.content = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
content = []
for i in contents:
component = SplitQName(i.getTagName())[1]
if component == 'mixed':
#print_debug('class %s, mixed skipped' %self.__class__, 5)
continue
elif component == 'any':
#print_debug('class %s, any skipped' %self.__class__, 5)
continue
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
self.content = tuple(content)
class Appinfo(XMLSchemaComponent):
"""<appinfo>
parent:
annotation
attributes:
source, anyURI
contents:
mixed, any
"""
attributes = {'source':None, 'anyURI':None}
contents = {'xsd':('mixed', 'any')}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.content = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
content = []
for i in contents:
component = SplitQName(i.getTagName())[1]
if component == 'mixed':
#print_debug('class %s, mixed skipped' %self.__class__, 5)
continue
elif component == 'any':
#print_debug('class %s, any skipped' %self.__class__, 5)
continue
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
self.content = tuple(content)
class XMLSchemaFake:
# This is temporary, for the benefit of WSDL until the real thing works.
def __init__(self, element):
self.targetNamespace = DOM.getAttr(element, 'targetNamespace')
self.element = element
class XMLSchema(XMLSchemaComponent):
"""A schema is a collection of schema components derived from one
or more schema documents, that is, one or more <schema> element
information items. It represents the abstract notion of a schema
rather than a single schema document (or other representation).
<schema>
parent:
ROOT
attributes:
id -- ID
version -- token
xml:lang -- language
targetNamespace -- anyURI
attributeFormDefault -- 'qualified' | 'unqualified', 'unqualified'
elementFormDefault -- 'qualified' | 'unqualified', 'unqualified'
blockDefault -- '#all' | list of
('substitution | 'extension' | 'restriction')
finalDefault -- '#all' | list of
('extension' | 'restriction' | 'list' | 'union')
contents:
((include | import | redefine | annotation)*,
(attribute, attributeGroup, complexType, element, group,
notation, simpleType)*, annotation*)*
attributes -- schema attributes
imports -- import statements
includes -- include statements
redefines --
types -- global simpleType, complexType definitions
elements -- global element declarations
attr_decl -- global attribute declarations
attr_groups -- attribute Groups
model_groups -- model Groups
notations -- global notations
"""
attributes = {'id':None,
'version':None,
'xml:lang':None,
'targetNamespace':None,
'attributeFormDefault':'unqualified',
'elementFormDefault':'unqualified',
'blockDefault':None,
'finalDefault':None}
contents = {'xsd':('include', 'import', 'redefine', 'annotation', 'attribute',\
'attributeGroup', 'complexType', 'element', 'group',\
'notation', 'simpleType', 'annotation')}
empty_namespace = ''
def __init__(self, parent=None):
"""parent --
instance variables:
targetNamespace -- schema's declared targetNamespace, or empty string.
_imported_schemas -- namespace keyed dict of schema dependencies, if
a schema is provided instance will not resolve import statement.
_included_schemas -- schemaLocation keyed dict of component schemas,
if schema is provided instance will not resolve include statement.
_base_url -- needed for relative URLs support, only works with URLs
relative to initial document.
includes -- collection of include statements
imports -- collection of import statements
elements -- collection of global element declarations
types -- collection of global type definitions
attr_decl -- collection of global attribute declarations
attr_groups -- collection of global attribute group definitions
model_groups -- collection of model group definitions
notations -- collection of notations
"""
self.targetNamespace = None
XMLSchemaComponent.__init__(self, parent)
f = lambda k: k.attributes['name']
ns = lambda k: k.attributes['namespace']
sl = lambda k: k.attributes['schemaLocation']
self.includes = Collection(self, key=sl)
self.imports = Collection(self, key=ns)
self.elements = Collection(self, key=f)
self.types = Collection(self, key=f)
self.attr_decl = Collection(self, key=f)
self.attr_groups = Collection(self, key=f)
self.model_groups = Collection(self, key=f)
self.notations = Collection(self, key=f)
self._imported_schemas = {}
self._included_schemas = {}
self._base_url = None
def addImportSchema(self, schema):
"""for resolving import statements in Schema instance
schema -- schema instance
_imported_schemas
"""
if not isinstance(schema, XMLSchema):
raise TypeError, 'expecting a Schema instance'
if schema.targetNamespace != self.targetNamespace:
self._imported_schemas[schema.targetNamespace] = schema
else:
raise SchemaError, 'import schema bad targetNamespace'
def addIncludeSchema(self, schemaLocation, schema):
"""for resolving include statements in Schema instance
schemaLocation -- schema location
schema -- schema instance
_included_schemas
"""
if not isinstance(schema, XMLSchema):
raise TypeError, 'expecting a Schema instance'
if not schema.targetNamespace or\
schema.targetNamespace == self.targetNamespace:
self._included_schemas[schemaLocation] = schema
else:
raise SchemaError, 'include schema bad targetNamespace'
def setImportSchemas(self, schema_dict):
"""set the import schema dictionary, which is used to
reference depedent schemas.
"""
self._imported_schemas = schema_dict
def getImportSchemas(self):
"""get the import schema dictionary, which is used to
reference depedent schemas.
"""
return self._imported_schemas
def getSchemaNamespacesToImport(self):
"""returns tuple of namespaces the schema instance has declared
itself to be depedent upon.
"""
return tuple(self.includes.keys())
def setIncludeSchemas(self, schema_dict):
"""set the include schema dictionary, which is keyed with
schemaLocation (uri).
This is a means of providing
schemas to the current schema for content inclusion.
"""
self._included_schemas = schema_dict
def getIncludeSchemas(self):
"""get the include schema dictionary, which is keyed with
schemaLocation (uri).
"""
return self._included_schemas
def getBaseUrl(self):
"""get base url, used for normalizing all relative uri's
"""
return self._base_url
def setBaseUrl(self, url):
"""set base url, used for normalizing all relative uri's
"""
self._base_url = url
def getElementFormDefault(self):
"""return elementFormDefault attribute
"""
return self.attributes.get('elementFormDefault')
def getAttributeFormDefault(self):
"""return attributeFormDefault attribute
"""
return self.attributes.get('attributeFormDefault')
def getBlockDefault(self):
"""return blockDefault attribute
"""
return self.attributes.get('blockDefault')
def getFinalDefault(self):
"""return finalDefault attribute
"""
return self.attributes.get('finalDefault')
def load(self, node):
pnode = node.getParentNode()
if pnode:
pname = SplitQName(pnode.getTagName())[1]
if pname == 'types':
attributes = {}
self.setAttributes(pnode)
attributes.update(self.attributes)
self.setAttributes(node)
for k,v in attributes['xmlns'].items():
if not self.attributes['xmlns'].has_key(k):
self.attributes['xmlns'][k] = v
else:
self.setAttributes(node)
else:
self.setAttributes(node)
self.targetNamespace = self.getTargetNamespace()
contents = self.getContents(node)
indx = 0
num = len(contents)
while indx < num:
while indx < num:
node = contents[indx]
component = SplitQName(node.getTagName())[1]
if component == 'include':
tp = self.__class__.Include(self)
tp.fromDom(node)
self.includes[tp.attributes['schemaLocation']] = tp
schema = tp.getSchema()
if schema.targetNamespace and \
schema.targetNamespace != self.targetNamespace:
raise SchemaError, 'included schema bad targetNamespace'
for collection in ['imports','elements','types',\
'attr_decl','attr_groups','model_groups','notations']:
for k,v in getattr(schema,collection).items():
if not getattr(self,collection).has_key(k):
v._parent = weakref.ref(self)
getattr(self,collection)[k] = v
elif component == 'import':
tp = self.__class__.Import(self)
tp.fromDom(node)
import_ns = tp.getAttribute('namespace')
if import_ns:
if import_ns == self.targetNamespace:
raise SchemaError,\
'import and schema have same targetNamespace'
self.imports[import_ns] = tp
else:
self.imports[self.__class__.empty_namespace] = tp
if not self.getImportSchemas().has_key(import_ns) and\
tp.getAttribute('schemaLocation'):
self.addImportSchema(tp.getSchema())
elif component == 'redefine':
#print_debug('class %s, redefine skipped' %self.__class__, 5)
pass
elif component == 'annotation':
#print_debug('class %s, annotation skipped' %self.__class__, 5)
pass
else:
break
indx += 1
# (attribute, attributeGroup, complexType, element, group,
# notation, simpleType)*, annotation*)*
while indx < num:
node = contents[indx]
component = SplitQName(node.getTagName())[1]
if component == 'attribute':
tp = AttributeDeclaration(self)
tp.fromDom(node)
self.attr_decl[tp.getAttribute('name')] = tp
elif component == 'attributeGroup':
tp = AttributeGroupDefinition(self)
tp.fromDom(node)
self.attr_groups[tp.getAttribute('name')] = tp
elif component == 'complexType':
tp = ComplexType(self)
tp.fromDom(node)
self.types[tp.getAttribute('name')] = tp
elif component == 'element':
tp = ElementDeclaration(self)
tp.fromDom(node)
self.elements[tp.getAttribute('name')] = tp
elif component == 'group':
tp = ModelGroupDefinition(self)
tp.fromDom(node)
self.model_groups[tp.getAttribute('name')] = tp
elif component == 'notation':
tp = Notation(self)
tp.fromDom(node)
self.notations[tp.getAttribute('name')] = tp
elif component == 'simpleType':
tp = SimpleType(self)
tp.fromDom(node)
self.types[tp.getAttribute('name')] = tp
else:
break
indx += 1
while indx < num:
node = contents[indx]
component = SplitQName(node.getTagName())[1]
if component == 'annotation':
#print_debug('class %s, annotation 2 skipped' %self.__class__, 5)
pass
else:
break
indx += 1
class Import(XMLSchemaComponent):
"""<import>
parent:
schema
attributes:
id -- ID
namespace -- anyURI
schemaLocation -- anyURI
contents:
annotation?
"""
attributes = {'id':None,
'namespace':None,
'schemaLocation':None}
contents = {'xsd':['annotation']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
self._schema = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
if self.attributes['namespace'] == self._parent().attributes['targetNamespace']:
raise SchemaError, 'namespace of schema and import match'
for i in contents:
component = SplitQName(i.getTagName())[1]
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
def getSchema(self):
"""if schema is not defined, first look for a Schema class instance
in parent Schema. Else if not defined resolve schemaLocation
and create a new Schema class instance, and keep a hard reference.
"""
if not self._schema:
ns = self.attributes['namespace']
schema = self._parent().getImportSchemas().get(ns)
if not schema and self._parent()._parent:
schema = self._parent()._parent().getImportSchemas().get(ns)
if not schema:
url = self.attributes.get('schemaLocation')
if not url:
raise SchemaError, 'namespace(%s) is unknown' %ns
base_url = self._parent().getBaseUrl()
reader = SchemaReader(base_url=base_url)
reader._imports = self._parent().getImportSchemas()
reader._includes = self._parent().getIncludeSchemas()
self._schema = reader.loadFromURL(url)
return self._schema or schema
class Include(XMLSchemaComponent):
"""<include schemaLocation>
parent:
schema
attributes:
id -- ID
schemaLocation -- anyURI, required
contents:
annotation?
"""
required = ['schemaLocation']
attributes = {'id':None,
'schemaLocation':None}
contents = {'xsd':['annotation']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
self._schema = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
for i in contents:
component = SplitQName(i.getTagName())[1]
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
def getSchema(self):
"""if schema is not defined, first look for a Schema class instance
in parent Schema. Else if not defined resolve schemaLocation
and create a new Schema class instance.
"""
if not self._schema:
#schema = self._parent()._parent()
schema = self._parent()
#self._schema = schema.getIncludeSchemas(\
# self.attributes['schemaLocation'])
self._schema = schema.getIncludeSchemas().get(\
self.attributes['schemaLocation']
)
if not self._schema:
url = self.attributes['schemaLocation']
reader = SchemaReader(base_url=schema.getBaseUrl())
reader._imports = schema.getImportSchemas()
reader._includes = schema.getIncludeSchemas()
self._schema = reader.loadFromURL(url)
return self._schema
class AttributeDeclaration(XMLSchemaComponent,\
AttributeMarker,\
DeclarationMarker):
"""<attribute name>
parent:
schema
attributes:
id -- ID
name -- NCName, required
type -- QName
default -- string
fixed -- string
contents:
annotation?, simpleType?
"""
required = ['name']
attributes = {'id':None,
'name':None,
'type':None,
'default':None,
'fixed':None}
contents = {'xsd':['annotation','simpleType']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
self.content = None
def fromDom(self, node):
""" No list or union support
"""
self.setAttributes(node)
contents = self.getContents(node)
for i in contents:
component = SplitQName(i.getTagName())[1]
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
elif component == 'simpleType':
self.content = AnonymousSimpleType(self)
self.content.fromDom(i)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
class LocalAttributeDeclaration(AttributeDeclaration,\
AttributeMarker,\
LocalMarker,\
DeclarationMarker):
"""<attribute name>
parent:
complexType, restriction, extension, attributeGroup
attributes:
id -- ID
name -- NCName, required
type -- QName
form -- ('qualified' | 'unqualified'), schema.attributeFormDefault
use -- ('optional' | 'prohibited' | 'required'), optional
default -- string
fixed -- string
contents:
annotation?, simpleType?
"""
required = ['name']
attributes = {'id':None,
'name':None,
'type':None,
'form':lambda self: GetSchema(self).getAttributeFormDefault(),
'use':'optional',
'default':None,
'fixed':None}
contents = {'xsd':['annotation','simpleType']}
def __init__(self, parent):
AttributeDeclaration.__init__(self, parent)
self.annotation = None
self.content = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
for i in contents:
component = SplitQName(i.getTagName())[1]
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
elif component == 'simpleType':
self.content = AnonymousSimpleType(self)
self.content.fromDom(i)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
class AttributeWildCard(XMLSchemaComponent,\
AttributeMarker,\
DeclarationMarker,\
WildCardMarker):
"""<anyAttribute>
parents:
complexType, restriction, extension, attributeGroup
attributes:
id -- ID
namespace -- '##any' | '##other' |
(anyURI* | '##targetNamespace' | '##local'), ##any
processContents -- 'lax' | 'skip' | 'strict', strict
contents:
annotation?
"""
attributes = {'id':None,
'namespace':'##any',
'processContents':'strict'}
contents = {'xsd':['annotation']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
for i in contents:
component = SplitQName(i.getTagName())[1]
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
class AttributeReference(XMLSchemaComponent,\
AttributeMarker,\
ReferenceMarker):
"""<attribute ref>
parents:
complexType, restriction, extension, attributeGroup
attributes:
id -- ID
ref -- QName, required
use -- ('optional' | 'prohibited' | 'required'), optional
default -- string
fixed -- string
contents:
annotation?
"""
required = ['ref']
attributes = {'id':None,
'ref':None,
'use':'optional',
'default':None,
'fixed':None}
contents = {'xsd':['annotation']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
for i in contents:
component = SplitQName(i.getTagName())[1]
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
class AttributeGroupDefinition(XMLSchemaComponent,\
AttributeGroupMarker,\
DefinitionMarker):
"""<attributeGroup name>
parents:
schema, redefine
attributes:
id -- ID
name -- NCName, required
contents:
annotation?, (attribute | attributeGroup)*, anyAttribute?
"""
required = ['name']
attributes = {'id':None,
'name':None}
contents = {'xsd':['annotation']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
self.attr_content = None
def getAttributeContent(self):
return self.attr_content
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
content = []
for indx in range(len(contents)):
component = SplitQName(contents[indx].getTagName())[1]
if (component == 'annotation') and (not indx):
self.annotation = Annotation(self)
self.annotation.fromDom(contents[indx])
elif (component == 'attribute'):
if contents[indx].hasattr('name'):
content.append(AttributeDeclaration())
elif contents[indx].hasattr('ref'):
content.append(AttributeReference())
else:
raise SchemaError, 'Unknown attribute type'
content[-1].fromDom(contents[indx])
elif (component == 'attributeGroup'):
content.append(AttributeGroupReference())
content[-1].fromDom(contents[indx])
elif (component == 'anyAttribute') and (len(contents) == x+1):
content.append(AttributeWildCard())
content[-1].fromDom(contents[indx])
else:
raise SchemaError, 'Unknown component (%s)' %(contents[indx].getTagName())
self.attr_content = tuple(content)
class AttributeGroupReference(XMLSchemaComponent,\
AttributeGroupMarker,\
ReferenceMarker):
"""<attributeGroup ref>
parents:
complexType, restriction, extension, attributeGroup
attributes:
id -- ID
ref -- QName, required
contents:
annotation?
"""
required = ['ref']
attributes = {'id':None,
'ref':None}
contents = {'xsd':['annotation']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
for i in contents:
component = SplitQName(i.getTagName())[1]
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
######################################################
# Elements
#####################################################
class IdentityConstrants(XMLSchemaComponent):
"""Allow one to uniquely identify nodes in a document and ensure the
integrity of references between them.
attributes -- dictionary of attributes
selector -- XPath to selected nodes
fields -- list of XPath to key field
"""
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.selector = None
self.fields = None
self.annotation = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
fields = []
for i in contents:
component = SplitQName(i.getTagName())[1]
if component in self.__class__.contents['xsd']:
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
elif component == 'selector':
self.selector = self.Selector(self)
self.selector.fromDom(i)
continue
elif component == 'field':
fields.append(self.Field(self))
fields[-1].fromDom(i)
continue
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
self.fields = tuple(fields)
class Constraint(XMLSchemaComponent):
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
for i in contents:
component = SplitQName(i.getTagName())[1]
if component in self.__class__.contents['xsd']:
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
class Selector(Constraint):
"""<selector xpath>
parent:
unique, key, keyref
attributes:
id -- ID
xpath -- XPath subset, required
contents:
annotation?
"""
required = ['xpath']
attributes = {'id':None,
'xpath':None}
contents = {'xsd':['annotation']}
class Field(Constraint):
"""<field xpath>
parent:
unique, key, keyref
attributes:
id -- ID
xpath -- XPath subset, required
contents:
annotation?
"""
required = ['xpath']
attributes = {'id':None,
'xpath':None}
contents = {'xsd':['annotation']}
class Unique(IdentityConstrants):
"""<unique name> Enforce fields are unique w/i a specified scope.
parent:
element
attributes:
id -- ID
name -- NCName, required
contents:
annotation?, selector, field+
"""
required = ['name']
attributes = {'id':None,
'name':None}
contents = {'xsd':['annotation', 'selector', 'field']}
class Key(IdentityConstrants):
"""<key name> Enforce fields are unique w/i a specified scope, and all
field values are present w/i document. Fields cannot
be nillable.
parent:
element
attributes:
id -- ID
name -- NCName, required
contents:
annotation?, selector, field+
"""
required = ['name']
attributes = {'id':None,
'name':None}
contents = {'xsd':['annotation', 'selector', 'field']}
class KeyRef(IdentityConstrants):
"""<keyref name refer> Ensure a match between two sets of values in an
instance.
parent:
element
attributes:
id -- ID
name -- NCName, required
refer -- QName, required
contents:
annotation?, selector, field+
"""
required = ['name', 'refer']
attributes = {'id':None,
'name':None,
'refer':None}
contents = {'xsd':['annotation', 'selector', 'field']}
class ElementDeclaration(XMLSchemaComponent,\
ElementMarker,\
DeclarationMarker):
"""<element name>
parents:
schema
attributes:
id -- ID
name -- NCName, required
type -- QName
default -- string
fixed -- string
nillable -- boolean, false
abstract -- boolean, false
substitutionGroup -- QName
block -- ('#all' | ('substition' | 'extension' | 'restriction')*),
schema.blockDefault
final -- ('#all' | ('extension' | 'restriction')*),
schema.finalDefault
contents:
annotation?, (simpleType,complexType)?, (key | keyref | unique)*
"""
required = ['name']
attributes = {'id':None,
'name':None,
'type':None,
'default':None,
'fixed':None,
'nillable':0,
'abstract':0,
'substitutionGroup':None,
'block':lambda self: self._parent().getBlockDefault(),
'final':lambda self: self._parent().getFinalDefault()}
contents = {'xsd':['annotation', 'simpleType', 'complexType', 'key',\
'keyref', 'unique']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
self.content = None
self.constraints = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
constraints = []
for i in contents:
component = SplitQName(i.getTagName())[1]
if component in self.__class__.contents['xsd']:
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
elif component == 'simpleType' and not self.content:
self.content = AnonymousSimpleType(self)
self.content.fromDom(i)
elif component == 'complexType' and not self.content:
self.content = LocalComplexType(self)
self.content.fromDom(i)
elif component == 'key':
constraints.append(Key(self))
constraints[-1].fromDom(i)
elif component == 'keyref':
constraints.append(KeyRef(self))
constraints[-1].fromDom(i)
elif component == 'unique':
constraints.append(Unique(self))
constraints[-1].fromDom(i)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
self.constraints = tuple(constraints)
class LocalElementDeclaration(ElementDeclaration,\
LocalMarker):
"""<element>
parents:
all, choice, sequence
attributes:
id -- ID
name -- NCName, required
form -- ('qualified' | 'unqualified'), schema.elementFormDefault
type -- QName
minOccurs -- Whole Number, 1
maxOccurs -- (Whole Number | 'unbounded'), 1
default -- string
fixed -- string
nillable -- boolean, false
block -- ('#all' | ('extension' | 'restriction')*), schema.blockDefault
contents:
annotation?, (simpleType,complexType)?, (key | keyref | unique)*
"""
required = ['name']
attributes = {'id':None,
'name':None,
'form':lambda self: GetSchema(self).getElementFormDefault(),
'type':None,
'minOccurs':'1',
'maxOccurs':'1',
'default':None,
'fixed':None,
'nillable':0,
'abstract':0,
'block':lambda self: GetSchema(self).getBlockDefault()}
contents = {'xsd':['annotation', 'simpleType', 'complexType', 'key',\
'keyref', 'unique']}
class ElementReference(XMLSchemaComponent,\
ElementMarker,\
ReferenceMarker):
"""<element ref>
parents:
all, choice, sequence
attributes:
id -- ID
ref -- QName, required
minOccurs -- Whole Number, 1
maxOccurs -- (Whole Number | 'unbounded'), 1
contents:
annotation?
"""
required = ['ref']
attributes = {'id':None,
'ref':None,
'minOccurs':'1',
'maxOccurs':'1'}
contents = {'xsd':['annotation']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
def fromDom(self, node):
self.annotation = None
self.setAttributes(node)
for i in self.getContents(node):
component = SplitQName(i.getTagName())[1]
if component in self.__class__.contents['xsd']:
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
class ElementWildCard(LocalElementDeclaration,\
WildCardMarker):
"""<any>
parents:
choice, sequence
attributes:
id -- ID
minOccurs -- Whole Number, 1
maxOccurs -- (Whole Number | 'unbounded'), 1
namespace -- '##any' | '##other' |
(anyURI* | '##targetNamespace' | '##local'), ##any
processContents -- 'lax' | 'skip' | 'strict', strict
contents:
annotation?
"""
required = []
attributes = {'id':None,
'minOccurs':'1',
'maxOccurs':'1',
'namespace':'##any',
'processContents':'strict'}
contents = {'xsd':['annotation']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
def fromDom(self, node):
self.annotation = None
self.setAttributes(node)
for i in self.getContents(node):
component = SplitQName(i.getTagName())[1]
if component in self.__class__.contents['xsd']:
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
######################################################
# Model Groups
#####################################################
class Sequence(XMLSchemaComponent,\
ModelGroupMarker):
"""<sequence>
parents:
complexType, extension, restriction, group, choice, sequence
attributes:
id -- ID
minOccurs -- Whole Number, 1
maxOccurs -- (Whole Number | 'unbounded'), 1
contents:
annotation?, (element | group | choice | sequence | any)*
"""
attributes = {'id':None,
'minOccurs':'1',
'maxOccurs':'1'}
contents = {'xsd':['annotation', 'element', 'group', 'choice', 'sequence',\
'any']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
self.content = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
content = []
for i in contents:
component = SplitQName(i.getTagName())[1]
if component in self.__class__.contents['xsd']:
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
continue
elif component == 'element':
if i.hasattr('ref'):
content.append(ElementReference(self))
else:
content.append(LocalElementDeclaration(self))
elif component == 'group':
content.append(ModelGroupReference(self))
elif component == 'choice':
content.append(Choice(self))
elif component == 'sequence':
content.append(Sequence(self))
elif component == 'any':
content.append(ElementWildCard(self))
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
content[-1].fromDom(i)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
self.content = tuple(content)
class All(XMLSchemaComponent,\
ModelGroupMarker):
"""<all>
parents:
complexType, extension, restriction, group
attributes:
id -- ID
minOccurs -- '0' | '1', 1
maxOccurs -- '1', 1
contents:
annotation?, element*
"""
attributes = {'id':None,
'minOccurs':'1',
'maxOccurs':'1'}
contents = {'xsd':['annotation', 'element']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
self.content = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
content = []
for i in contents:
component = SplitQName(i.getTagName())[1]
if component in self.__class__.contents['xsd']:
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
continue
elif component == 'element':
if i.hasattr('ref'):
content.append(ElementReference(self))
else:
content.append(LocalElementDeclaration(self))
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
content[-1].fromDom(i)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
self.content = tuple(content)
class Choice(XMLSchemaComponent,\
ModelGroupMarker):
"""<choice>
parents:
complexType, extension, restriction, group, choice, sequence
attributes:
id -- ID
minOccurs -- Whole Number, 1
maxOccurs -- (Whole Number | 'unbounded'), 1
contents:
annotation?, (element | group | choice | sequence | any)*
"""
attributes = {'id':None,
'minOccurs':'1',
'maxOccurs':'1'}
contents = {'xsd':['annotation', 'element', 'group', 'choice', 'sequence',\
'any']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
self.content = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
content = []
for i in contents:
component = SplitQName(i.getTagName())[1]
if component in self.__class__.contents['xsd']:
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
continue
elif component == 'element':
if i.hasattr('ref'):
content.append(ElementReference(self))
else:
content.append(LocalElementDeclaration(self))
elif component == 'group':
content.append(ModelGroupReference(self))
elif component == 'choice':
content.append(Choice(self))
elif component == 'sequence':
content.append(Sequence(self))
elif component == 'any':
content.append(ElementWildCard(self))
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
content[-1].fromDom(i)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
self.content = tuple(content)
class ModelGroupDefinition(XMLSchemaComponent,\
ModelGroupMarker,\
DefinitionMarker):
"""<group name>
parents:
redefine, schema
attributes:
id -- ID
name -- NCName, required
contents:
annotation?, (all | choice | sequence)?
"""
required = ['name']
attributes = {'id':None,
'name':None}
contents = {'xsd':['annotation', 'all', 'choice', 'sequence']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
self.content = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
for i in contents:
component = SplitQName(i.getTagName())[1]
if component in self.__class__.contents['xsd']:
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
continue
elif component == 'all' and not self.content:
self.content = All(self)
elif component == 'choice' and not self.content:
self.content = Choice(self)
elif component == 'sequence' and not self.content:
self.content = Sequence(self)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
self.content.fromDom(i)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
class ModelGroupReference(XMLSchemaComponent,\
ModelGroupMarker,\
ReferenceMarker):
"""<group ref>
parents:
choice, complexType, extension, restriction, sequence
attributes:
id -- ID
ref -- NCName, required
minOccurs -- Whole Number, 1
maxOccurs -- (Whole Number | 'unbounded'), 1
contents:
annotation?
"""
required = ['ref']
attributes = {'id':None,
'ref':None,
'minOccurs':'1',
'maxOccurs':'1'}
contents = {'xsd':['annotation']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
for i in contents:
component = SplitQName(i.getTagName())[1]
if component in self.__class__.contents['xsd']:
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
class ComplexType(XMLSchemaComponent,\
DefinitionMarker,\
ComplexMarker):
"""<complexType name>
parents:
redefine, schema
attributes:
id -- ID
name -- NCName, required
mixed -- boolean, false
abstract -- boolean, false
block -- ('#all' | ('extension' | 'restriction')*), schema.blockDefault
final -- ('#all' | ('extension' | 'restriction')*), schema.finalDefault
contents:
annotation?, (simpleContent | complexContent |
((group | all | choice | sequence)?, (attribute | attributeGroup)*, anyAttribute?))
"""
required = ['name']
attributes = {'id':None,
'name':None,
'mixed':0,
'abstract':0,
'block':lambda self: self._parent().getBlockDefault(),
'final':lambda self: self._parent().getFinalDefault()}
contents = {'xsd':['annotation', 'simpleContent', 'complexContent',\
'group', 'all', 'choice', 'sequence', 'attribute', 'attributeGroup',\
'anyAttribute', 'any']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
self.content = None
self.attr_content = None
def getAttributeContent(self):
return self.attr_content
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
indx = 0
num = len(contents)
#XXX ugly
if not num:
return
component = SplitQName(contents[indx].getTagName())[1]
if component == 'annotation':
self.annotation = Annotation(self)
self.annotation.fromDom(contents[indx])
indx += 1
component = SplitQName(contents[indx].getTagName())[1]
self.content = None
if component == 'simpleContent':
self.content = self.__class__.SimpleContent(self)
self.content.fromDom(contents[indx])
elif component == 'complexContent':
self.content = self.__class__.ComplexContent(self)
self.content.fromDom(contents[indx])
else:
if component == 'all':
self.content = All(self)
elif component == 'choice':
self.content = Choice(self)
elif component == 'sequence':
self.content = Sequence(self)
elif component == 'group':
self.content = ModelGroupReference(self)
if self.content:
self.content.fromDom(contents[indx])
indx += 1
self.attr_content = []
while indx < num:
component = SplitQName(contents[indx].getTagName())[1]
if component == 'attribute':
if contents[indx].hasattr('ref'):
self.attr_content.append(AttributeReference(self))
else:
self.attr_content.append(LocalAttributeDeclaration(self))
elif component == 'attributeGroup':
self.attr_content.append(AttributeGroupReference(self))
elif component == 'anyAttribute':
self.attr_content.append(AttributeWildCard(self))
else:
raise SchemaError, 'Unknown component (%s)' %(contents[indx].getTagName())
self.attr_content[-1].fromDom(contents[indx])
indx += 1
class _DerivedType(XMLSchemaComponent):
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
self.derivation = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
for i in contents:
component = SplitQName(i.getTagName())[1]
if component in self.__class__.contents['xsd']:
if component == 'annotation' and not self.annotation:
self.annotation = Annotation(self)
self.annotation.fromDom(i)
continue
elif component == 'restriction' and not self.derivation:
self.derivation = self.__class__.Restriction(self)
elif component == 'extension' and not self.derivation:
self.derivation = self.__class__.Extension(self)
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
self.derivation.fromDom(i)
class ComplexContent(_DerivedType,\
ComplexMarker):
"""<complexContent>
parents:
complexType
attributes:
id -- ID
mixed -- boolean, false
contents:
annotation?, (restriction | extension)
"""
attributes = {'id':None,
'mixed':0 }
contents = {'xsd':['annotation', 'restriction', 'extension']}
class _DerivationBase(XMLSchemaComponent):
"""<extension>,<restriction>
parents:
complexContent
attributes:
id -- ID
base -- QName, required
contents:
annotation?, (group | all | choice | sequence)?,
(attribute | attributeGroup)*, anyAttribute?
"""
required = ['base']
attributes = {'id':None,
'base':None }
contents = {'xsd':['annotation', 'group', 'all', 'choice',\
'sequence', 'attribute', 'attributeGroup', 'anyAttribute']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
self.content = None
self.attr_content = None
def getAttributeContent(self):
return self.attr_content
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
indx = 0
num = len(contents)
#XXX ugly
if not num:
return
component = SplitQName(contents[indx].getTagName())[1]
if component == 'annotation':
self.annotation = Annotation(self)
self.annotation.fromDom(contents[indx])
indx += 1
component = SplitQName(contents[indx].getTagName())[1]
if component == 'all':
self.content = All(self)
self.content.fromDom(contents[indx])
indx += 1
elif component == 'choice':
self.content = Choice(self)
self.content.fromDom(contents[indx])
indx += 1
elif component == 'sequence':
self.content = Sequence(self)
self.content.fromDom(contents[indx])
indx += 1
elif component == 'group':
self.content = ModelGroupReference(self)
self.content.fromDom(contents[indx])
indx += 1
else:
self.content = None
self.attr_content = []
while indx < num:
component = SplitQName(contents[indx].getTagName())[1]
if component == 'attribute':
if contents[indx].hasattr('ref'):
self.attr_content.append(AttributeReference(self))
else:
self.attr_content.append(LocalAttributeDeclaration(self))
elif component == 'attributeGroup':
if contents[indx].hasattr('ref'):
self.attr_content.append(AttributeGroupReference(self))
else:
self.attr_content.append(AttributeGroupDefinition(self))
elif component == 'anyAttribute':
self.attr_content.append(AttributeWildCard(self))
else:
raise SchemaError, 'Unknown component (%s)' %(contents[indx].getTagName())
self.attr_content[-1].fromDom(contents[indx])
indx += 1
class Extension(_DerivationBase,
ExtensionMarker):
"""<extension base>
parents:
complexContent
attributes:
id -- ID
base -- QName, required
contents:
annotation?, (group | all | choice | sequence)?,
(attribute | attributeGroup)*, anyAttribute?
"""
pass
class Restriction(_DerivationBase,\
RestrictionMarker):
"""<restriction base>
parents:
complexContent
attributes:
id -- ID
base -- QName, required
contents:
annotation?, (group | all | choice | sequence)?,
(attribute | attributeGroup)*, anyAttribute?
"""
pass
class SimpleContent(_DerivedType,\
SimpleMarker):
"""<simpleContent>
parents:
complexType
attributes:
id -- ID
contents:
annotation?, (restriction | extension)
"""
attributes = {'id':None}
contents = {'xsd':['annotation', 'restriction', 'extension']}
class Extension(XMLSchemaComponent,\
ExtensionMarker):
"""<extension base>
parents:
simpleContent
attributes:
id -- ID
base -- QName, required
contents:
annotation?, (attribute | attributeGroup)*, anyAttribute?
"""
required = ['base']
attributes = {'id':None,
'base':None }
contents = {'xsd':['annotation', 'attribute', 'attributeGroup',
'anyAttribute']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
self.attr_content = None
def getAttributeContent(self):
return self.attr_content
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
indx = 0
num = len(contents)
component = SplitQName(contents[indx].getTagName())[1]
if component == 'annotation':
self.annotation = Annotation(self)
self.annotation.fromDom(contents[indx])
indx += 1
component = SplitQName(contents[indx].getTagName())[1]
content = []
while indx < num:
component = SplitQName(contents[indx].getTagName())[1]
if component == 'attribute':
if contents[indx].hasattr('ref'):
content.append(AttributeReference(self))
else:
content.append(LocalAttributeDeclaration(self))
elif component == 'attributeGroup':
content.append(AttributeGroupReference(self))
elif component == 'anyAttribute':
content.append(AttributeWildCard(self))
else:
raise SchemaError, 'Unknown component (%s)'\
%(contents[indx].getTagName())
content[-1].fromDom(contents[indx])
indx += 1
self.attr_content = tuple(content)
class Restriction(XMLSchemaComponent,\
RestrictionMarker):
"""<restriction base>
parents:
simpleContent
attributes:
id -- ID
base -- QName, required
contents:
annotation?, simpleType?, (enumeration | length |
maxExclusive | maxInclusive | maxLength | minExclusive |
minInclusive | minLength | pattern | fractionDigits |
totalDigits | whiteSpace)*, (attribute | attributeGroup)*,
anyAttribute?
"""
required = ['base']
attributes = {'id':None,
'base':None }
contents = {'xsd':['annotation', 'simpleType', 'attribute',\
'attributeGroup', 'anyAttribute'] + RestrictionMarker.facets}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
self.content = None
self.attr_content = None
def getAttributeContent(self):
return self.attr_content
def fromDom(self, node):
self.content = []
self.setAttributes(node)
contents = self.getContents(node)
indx = 0
num = len(contents)
component = SplitQName(contents[indx].getTagName())[1]
if component == 'annotation':
self.annotation = Annotation(self)
self.annotation.fromDom(contents[indx])
indx += 1
component = SplitQName(contents[indx].getTagName())[1]
content = []
while indx < num:
component = SplitQName(contents[indx].getTagName())[1]
if component == 'attribute':
if contents[indx].hasattr('ref'):
content.append(AttributeReference(self))
else:
content.append(LocalAttributeDeclaration(self))
elif component == 'attributeGroup':
content.append(AttributeGroupReference(self))
elif component == 'anyAttribute':
content.append(AttributeWildCard(self))
elif component == 'simpleType':
self.content.append(LocalSimpleType(self))
self.content[-1].fromDom(contents[indx])
else:
raise SchemaError, 'Unknown component (%s)'\
%(contents[indx].getTagName())
content[-1].fromDom(contents[indx])
indx += 1
self.attr_content = tuple(content)
class LocalComplexType(ComplexType,\
LocalMarker):
"""<complexType>
parents:
element
attributes:
id -- ID
mixed -- boolean, false
contents:
annotation?, (simpleContent | complexContent |
((group | all | choice | sequence)?, (attribute | attributeGroup)*, anyAttribute?))
"""
required = []
attributes = {'id':None,
'mixed':0}
class SimpleType(XMLSchemaComponent,\
DefinitionMarker,\
SimpleMarker):
"""<simpleType name>
parents:
redefine, schema
attributes:
id -- ID
name -- NCName, required
final -- ('#all' | ('extension' | 'restriction' | 'list' | 'union')*),
schema.finalDefault
contents:
annotation?, (restriction | list | union)
"""
required = ['name']
attributes = {'id':None,
'name':None,
'final':lambda self: self._parent().getFinalDefault()}
contents = {'xsd':['annotation', 'restriction', 'list', 'union']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
self.content = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
for child in contents:
component = SplitQName(child.getTagName())[1]
if component == 'annotation':
self.annotation = Annotation(self)
self.annotation.fromDom(child)
continue
break
else:
return
if component == 'restriction':
self.content = self.__class__.Restriction(self)
elif component == 'list':
self.content = self.__class__.List(self)
elif component == 'union':
self.content = self.__class__.Union(self)
else:
raise SchemaError, 'Unknown component (%s)' %(component)
self.content.fromDom(child)
class Restriction(XMLSchemaComponent,\
RestrictionMarker):
"""<restriction base>
parents:
simpleType
attributes:
id -- ID
base -- QName, required or simpleType child
contents:
annotation?, simpleType?, (enumeration | length |
maxExclusive | maxInclusive | maxLength | minExclusive |
minInclusive | minLength | pattern | fractionDigits |
totalDigits | whiteSpace)*
"""
attributes = {'id':None,
'base':None }
contents = {'xsd':['annotation', 'simpleType']+RestrictionMarker.facets}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
self.content = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
content = []
for indx in range(len(contents)):
component = SplitQName(contents[indx].getTagName())[1]
if (component == 'annotation') and (not indx):
self.annotation = Annotation(self)
self.annotation.fromDom(contents[indx])
continue
elif (component == 'simpleType') and (not indx or indx == 1):
content.append(AnonymousSimpleType(self))
content[-1].fromDom(contents[indx])
elif component in RestrictionMarker.facets:
#print_debug('%s class instance, skipping %s' %(self.__class__, component))
pass
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
self.content = tuple(content)
class Union(XMLSchemaComponent):
"""<union>
parents:
simpleType
attributes:
id -- ID
memberTypes -- list of QNames, required or simpleType child.
contents:
annotation?, simpleType*
"""
attributes = {'id':None,
'memberTypes':None }
contents = {'xsd':['annotation', 'simpleType']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
self.content = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
content = []
for indx in range(len(contents)):
component = SplitQName(contents[indx].getTagName())[1]
if (component == 'annotation') and (not indx):
self.annotation = Annotation(self)
self.annotation.fromDom(contents[indx])
elif (component == 'simpleType'):
content.append(AnonymousSimpleType(self))
content[-1].fromDom(contents[indx])
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
self.content = tuple(content)
class List(XMLSchemaComponent):
"""<list>
parents:
simpleType
attributes:
id -- ID
itemType -- QName, required or simpleType child.
contents:
annotation?, simpleType?
"""
attributes = {'id':None,
'itemType':None }
contents = {'xsd':['annotation', 'simpleType']}
def __init__(self, parent):
XMLSchemaComponent.__init__(self, parent)
self.annotation = None
self.content = None
def fromDom(self, node):
self.setAttributes(node)
contents = self.getContents(node)
self.content = []
for indx in range(len(contents)):
component = SplitQName(contents[indx].getTagName())[1]
if (component == 'annotation') and (not indx):
self.annotation = Annotation(self)
self.annotation.fromDom(contents[indx])
elif (component == 'simpleType'):
self.content = AnonymousSimpleType(self)
self.content.fromDom(contents[indx])
break
else:
raise SchemaError, 'Unknown component (%s)' %(i.getTagName())
class AnonymousSimpleType(SimpleType,\
SimpleMarker):
"""<simpleType>
parents:
attribute, element, list, restriction, union
attributes:
id -- ID
contents:
annotation?, (restriction | list | union)
"""
required = []
attributes = {'id':None}
class Redefine:
"""<redefine>
parents:
attributes:
contents:
"""
pass
###########################
###########################
if sys.version_info[:2] >= (2, 2):
tupleClass = tuple
else:
import UserTuple
tupleClass = UserTuple.UserTuple
class TypeDescriptionComponent(tupleClass):
"""Tuple of length 2, consisting of
a namespace and unprefixed name.
"""
def __init__(self, args):
"""args -- (namespace, name)
Remove the name's prefix, irrelevant.
"""
if len(args) != 2:
raise TypeError, 'expecting tuple (namespace, name), got %s' %args
elif args[1].find(':') >= 0:
args = (args[0], SplitQName(args[1])[1])
tuple.__init__(self, args)
return
def getTargetNamespace(self):
return self[0]
def getName(self):
return self[1]
'''
import string, types, base64, re
from Utility import DOM, Collection
from StringIO import StringIO
class SchemaReader:
"""A SchemaReader creates XMLSchema objects from urls and xml data."""
def loadFromStream(self, file):
"""Return an XMLSchema instance loaded from a file object."""
document = DOM.loadDocument(file)
schema = XMLSchema()
schema.load(document)
return schema
def loadFromString(self, data):
"""Return an XMLSchema instance loaded from an xml string."""
return self.loadFromStream(StringIO(data))
def loadFromURL(self, url):
"""Return an XMLSchema instance loaded from the given url."""
document = DOM.loadFromURL(url)
schema = XMLSchema()
schema.location = url
schema.load(document)
return schema
def loadFromFile(self, filename):
"""Return an XMLSchema instance loaded from the given file."""
file = open(filename, 'rb')
try: schema = self.loadFromStream(file)
finally: file.close()
return schema
class SchemaError(Exception):
pass
class XMLSchema:
# This is temporary, for the benefit of WSDL until the real thing works.
def __init__(self, element):
self.targetNamespace = DOM.getAttr(element, 'targetNamespace')
self.element = element
class realXMLSchema:
"""A schema is a collection of schema components derived from one
or more schema documents, that is, one or more <schema> element
information items. It represents the abstract notion of a schema
rather than a single schema document (or other representation)."""
def __init__(self):
self.simpleTypes = Collection(self)
self.complexTypes = Collection(self)
self.attributes = Collection(self)
self.elements = Collection(self)
self.attrGroups = Collection(self)
self.idConstraints=None
self.modelGroups = None
self.notations = None
self.extensions = []
targetNamespace = None
attributeFormDefault = 'unqualified'
elementFormDefault = 'unqualified'
blockDefault = None
finalDefault = None
location = None
version = None
id = None
def load(self, document):
if document.nodeType == document.DOCUMENT_NODE:
schema = DOM.getElement(document, 'schema', None, None)
else:
schema = document
if schema is None:
raise SchemaError('Missing <schema> element.')
self.namespace = namespace = schema.namespaceURI
if not namespace in DOM.NS_XSD_ALL:
raise SchemaError(
'Unknown XML schema namespace: %s.' % self.namespace
)
for attrname in (
'targetNamespace', 'attributeFormDefault', 'elementFormDefault',
'blockDefault', 'finalDefault', 'version', 'id'
):
value = DOM.getAttr(schema, attrname, None, None)
if value is not None:
setattr(self, attrname, value)
# Resolve imports and includes here?
## imported = {}
## while 1:
## imports = []
## for element in DOM.getElements(definitions, 'import', NS_WSDL):
## location = DOM.getAttr(element, 'location')
## if not imported.has_key(location):
## imports.append(element)
## if not imports:
## break
## for element in imports:
## self._import(document, element)
## imported[location] = 1
for element in DOM.getElements(schema, None, None):
localName = element.localName
if not DOM.nsUriMatch(element.namespaceURI, namespace):
self.extensions.append(element)
continue
elif localName == 'message':
name = DOM.getAttr(element, 'name')
docs = GetDocumentation(element)
message = self.addMessage(name, docs)
parts = DOM.getElements(element, 'part', NS_WSDL)
message.load(parts)
continue
def _import(self, document, element):
namespace = DOM.getAttr(element, 'namespace', default=None)
location = DOM.getAttr(element, 'location', default=None)
if namespace is None or location is None:
raise WSDLError(
'Invalid import element (missing namespace or location).'
)
# Sort-of support relative locations to simplify unit testing. The
# WSDL specification actually doesn't allow relative URLs, so its
# ok that this only works with urls relative to the initial document.
location = urllib.basejoin(self.location, location)
obimport = self.addImport(namespace, location)
obimport._loaded = 1
importdoc = DOM.loadFromURL(location)
try:
if location.find('#') > -1:
idref = location.split('#')[-1]
imported = DOM.getElementById(importdoc, idref)
else:
imported = importdoc.documentElement
if imported is None:
raise WSDLError(
'Import target element not found for: %s' % location
)
imported_tns = DOM.getAttr(imported, 'targetNamespace')
importer_tns = namespace
if imported_tns != importer_tns:
return
if imported.localName == 'definitions':
imported_nodes = imported.childNodes
else:
imported_nodes = [imported]
parent = element.parentNode
for node in imported_nodes:
if node.nodeType != node.ELEMENT_NODE:
continue
child = DOM.importNode(document, node, 1)
parent.appendChild(child)
child.setAttribute('targetNamespace', importer_tns)
attrsNS = imported._attrsNS
for attrkey in attrsNS.keys():
if attrkey[0] == DOM.NS_XMLNS:
attr = attrsNS[attrkey].cloneNode(1)
child.setAttributeNode(attr)
finally:
importdoc.unlink()
class Element:
"""Common base class for element representation classes."""
def __init__(self, name=None, documentation=''):
self.name = name
self.documentation = documentation
self.extensions = []
def addExtension(self, item):
self.extensions.append(item)
class SimpleTypeDefinition:
"""Represents an xml schema simple type definition."""
class ComplexTypeDefinition:
"""Represents an xml schema complex type definition."""
class AttributeDeclaration:
"""Represents an xml schema attribute declaration."""
class ElementDeclaration:
"""Represents an xml schema element declaration."""
def __init__(self, name, type=None, targetNamespace=None):
self.name = name
targetNamespace = None
annotation = None
nillable = 0
abstract = 0
default = None
fixed = None
scope = 'global'
type = None
form = 0
# Things we will not worry about for now.
id_constraint_defs = None
sub_group_exclude = None
sub_group_affils = None
disallowed_subs = None
class AttributeGroupDefinition:
"""Represents an xml schema attribute group definition."""
class IdentityConstraintDefinition:
"""Represents an xml schema identity constraint definition."""
class ModelGroupDefinition:
"""Represents an xml schema model group definition."""
class NotationDeclaration:
"""Represents an xml schema notation declaration."""
class Annotation:
"""Represents an xml schema annotation."""
class ModelGroup:
"""Represents an xml schema model group."""
class Particle:
"""Represents an xml schema particle."""
class WildCard:
"""Represents an xml schema wildcard."""
class AttributeUse:
"""Represents an xml schema attribute use."""
class ElementComponent:
namespace = ''
name = ''
type = None
form = 'qualified | unqualified'
scope = 'global or complex def'
constraint = ('value', 'default | fixed')
nillable = 0
id_constraint_defs = None
sub_group_affil = None
sub_group_exclusions = None
disallowed_subs = 'substitution, extension, restriction'
abstract = 0
minOccurs = 1
maxOccurs = 1
ref = ''
class AttributeThing:
name = ''
namespace = ''
typeName = ''
typeUri = ''
scope = 'global | local to complex def'
constraint = ('value:default', 'value:fixed')
use = 'optional | prohibited | required'
class ElementDataType:
namespace = ''
name = ''
element_form = 'qualified | unqualified'
attr_form = None
type_name = ''
type_uri = ''
def __init__(self, name, namespace, type_name, type_uri):
self.namespace = namespace
self.name = name
# type may be anonymous...
self.type_name = type_name
self.type_uri = type_uri
def checkValue(self, value, context):
# Delegate value checking to the type of the element.
typeref = (self.type_uri, self.type_name)
handler = context.serializer.getType(typeref)
return handler.checkValue(value, context)
def serialize(self, name, namespace, value, context, **kwargs):
if context.check_values:
self.checkValue(value, context)
# Delegate serialization to the type of the element.
typeref = (self.type_uri, self.type_name)
handler = context.serializer.getType(typeref)
return handler.serialize(self.name, self.namespace, value, context)
def deserialize(self, element, context):
if element_is_null(element, context):
return None
# Delegate deserialization to the type of the element.
typeref = (self.type_uri, self.type_name)
handler = context.serializer.getType(typeref)
return handler.deserialize(element, context)
def parse_schema(data):
targetNS = ''
attributeFormDefault = 0
elementFormDefault = 0
blockDefault = ''
finalDefault = ''
language = None
version = None
id = ''
'''
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