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# $Header: /var/local/cvsroot/4Suite/Ft/Rdf/__init__.py,v 1.17 2004/10/16 05:35:58 mbrown Exp $
"""
An RDF processing library with support for persistent data models
Copyright 2004 Fourthought, Inc. (USA).
Detailed license and copyright information: http://4suite.org/COPYRIGHT
Project home, documentation, distributions: http://4suite.org/
"""
from Ft import __version__
BNODE_BASE = 'http://4suite.org/rdf/anonymous/'
BNODE_BASE_LEN = len(BNODE_BASE)
RDF_MS_BASE = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#'
RDF_SCHEMA_BASE = "http://www.w3.org/2000/01/rdf-schema#"
RIL_NAMESPACE = 'http://namespaces.rdfinference.org/ril'
OLD_DAML_OIL_NS = 'http://www.daml.org/2001/03/daml+oil#'
DAML_OIL_NS = 'http://www.w3.org/2001/10/daml+oil#'
OWL_NS = 'http://www.w3.org/2002/07/owl#'
OBJECT_TYPE_UNKNOWN = "?"
OBJECT_TYPE_RESOURCE = "R"
OBJECT_TYPE_LITERAL = "L"
ANONYMOUS_FRAGMENT_BASE = 'anonymous:'
class SchemaHandler:
def initModel(self):
return
def suspend(self):
old = self._active
self._active = 0
return old
def resume(self):
old = self._active
self._active = 1
return old
def setActivity(self, value):
old = self._active
self._active = value and 1 or 0
return old
def add(self, statements):
return
def remove(self, statements):
return
def contains(self, statements):
return
class RdfException(Exception):
INTERNAL_ERROR = 0
FEATURE_NOT_SUPPORTED = 1
INVALID_FLAG = 2
INVALID_CONTAINER_TYPE = 3
INVALID_REGEX_STATEMENT = 4
INVALID_ARGUMENT = 5
INVALID_CONTAINER_ITEM_TYPE = 6
ABOUT_EACH_OBJECT_NOT_CONTAINER = 100
MISSING_DRIVER = 200
def __init__(self, errorCode, *args):
import MessageSource
self.args = args
self.errorCode = errorCode
Exception.__init__(self, MessageSource.RDF_ERROR_MESSAGES[errorCode]%args)
class ParseException(Exception):
FEATURE_NOT_SUPPORTED = 1
INVALID_PREDICATE = 10
INVALID_CONTAINER_PROPERTY = 20
INVALID_CONTAINER_TYPE = 30
MULTIPLE_VALUE_OBJECTS = 40
NONEMPTY_PROPELT_WITH_PROPATTRS = 50
NONEMPTY_PROPELT_WITH_RESATTR = 51
def __init__(self, errorCode, *args):
import MessageSource
self.args = args
self.errorCode = errorCode
Exception.__init__(self, MessageSource.PARSE_ERROR_MESSAGES[errorCode]%args)
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