- generated_ts = now.strftime(date_format)
- expires_ts = (now + timedelta(minutes=30)).strftime(date_format)
- self.xml = etree.Element("rspec", type = type,
- valid_until=expires_ts,
- generated=generated_ts)
-
- def parse_rspec(self, rspec, namespaces={}):
- try:
- tree = etree.parse(rspec)
- self.xml = tree.getroot()
- if namespaces:
- self.namespaces = namespaces
- except IOError:
- # 'rspec' file doesnt exist. 'rspec' is proably an xml string
- try:
- tree = etree.parse(StringIO(rspec))
- self.xml = tree.getroot()
- except:
- raise IOError('Must specify a xml file or xml string. Received: ' + rspec )
-
- def get_network(self):
- raise SfaNotImplemented()
-
- def get_nodes(self, nodes_with_slivers=False):
- raise SfaNotImplemented()
-
- def add_nodes(self, nodes, check_for_dupes=False):
- raise SfaNotImplemented()
-
- def add_slivers(self, slivers, check_for_dupes=False):
- raise SfaNotImplemented()
-
- def add_links(self, links, check_for_dupes=False):
- raise SfaNotImplemented()
-
- def __str__(self):
- return self.toxml()
-
- def toxml(self):
- return self.header + etree.tostring(self.xml, pretty_print=True)
-
+ generated_ts = now.strftime(SFATIME_FORMAT)
+ if ttl is None:
+ ttl = 60
+ if expires is None:
+ expires_ts = (now + timedelta(minutes=ttl)
+ ).strftime(SFATIME_FORMAT)
+ else:
+ if isinstance(expires, int):
+ expires_date = datetime.fromtimestamp(expires)
+ else:
+ expires_date = expires
+ expires_ts = expires_date.strftime(SFATIME_FORMAT)
+ self.xml.set('expires', expires_ts)
+ self.xml.set('generated', generated_ts)
+
+ def parse_xml(self, xml, version=None):
+ self.xml.parse_xml(xml)
+ if not version:
+ if self.xml.schema:
+ self.version = self.version_manager.get_version_by_schema(
+ self.xml.schema)
+ else:
+ #raise InvalidRSpec('unknown rspec schema: {}'.format(schema))
+ # TODO: Should start raising an exception once SFA defines a schema.
+ # for now we just default to sfa
+ self.version = self.version_manager.get_version(
+ {'type': 'sfa', 'version': '1'})
+ self.version.xml = self.xml
+ self.namespaces = self.xml.namespaces
+
+ def load_rspec_elements(self, rspec_elements):
+ self.elements = {}
+ for rspec_element in rspec_elements:
+ if isinstance(rspec_element, RSpecElement):
+ self.elements[rspec_element.type] = rspec_element
+
+ def register_rspec_element(self, element_type, element_name, element_path):
+ if element_type not in RSpecElements:
+ raise InvalidRSpecElement(element_type,
+ extra="no such element type: {}. Must specify a valid RSpecElement".format(element_type))
+ self.elements[element_type] = RSpecElement(
+ element_type, element_name, element_path)
+
+ def get_rspec_element(self, element_type):
+ if element_type not in self.elements:
+ msg = "ElementType {} not registered for this rspec".format(
+ element_type)
+ raise InvalidRSpecElement(element_type, extra=msg)
+ return self.elements[element_type]
+
+ def get(self, element_type, filter=None, depth=0):
+ if filter is None:
+ filter = {}
+ elements = self.get_elements(element_type, filter)
+ elements = [self.xml.get_element_attributes(
+ elem, depth=depth) for elem in elements]
+ return elements
+
+ def get_elements(self, element_type, filter=None):
+ """
+ search for a registered element
+ """
+ if filter is None:
+ filter = {}
+ if element_type not in self.elements:
+ msg = "Unable to search for element {} in rspec, expath expression not found."\
+ .format(element_type)
+ raise InvalidRSpecElement(element_type, extra=msg)
+ rspec_element = self.get_rspec_element(element_type)
+ xpath = rspec_element.path + XpathFilter.xpath(filter)
+ return self.xml.xpath(xpath)
+
+ def merge(self, in_rspec):
+ self.version.merge(in_rspec)
+
+ def filter(self, filter):
+ if 'component_manager_id' in filter:
+ nodes = self.version.get_nodes()
+ for node in nodes:
+ if 'component_manager_id' not in node.attrib or \
+ node.attrib['component_manager_id'] != filter['component_manager_id']:
+ parent = node.getparent()
+ parent.remove(node.element)
+
+ def toxml(self, header=True):
+ if header:
+ return self.header + self.xml.toxml()
+ else:
+ return self.xml.toxml()
+
+ def save(self, filename):
+ return self.xml.save(filename)