-#!/usr/bin/python
+#!/usr/bin/env python2
+
+from __future__ import print_function
+
from datetime import datetime, timedelta
from sfa.util.xml import XML, XpathFilter
-from sfa.util.faults import InvalidRSpecElement
+from sfa.util.faults import InvalidRSpecElement, InvalidRSpec
+from sfa.util.sfatime import SFATIME_FORMAT
-from sfa.rspecs.rspec_elements import RSpecElement, RSpecElements
+from sfa.rspecs.rspec_elements import RSpecElement, RSpecElements
from sfa.rspecs.version_manager import VersionManager
+
class RSpec:
-
- def __init__(self, rspec="", version=None, user_options={}):
+
+ def __init__(self, rspec="", version=None, user_options=None, ttl=None, expires=None):
+ if user_options is None:
+ user_options = {}
self.header = '<?xml version="1.0"?>\n'
self.template = """<RSpec></RSpec>"""
self.version = None
self.xml = XML()
self.version_manager = VersionManager()
self.user_options = user_options
+ self.ttl = ttl
+ self.expires = expires
self.elements = {}
if rspec:
- self.parse_xml(rspec)
+ if version:
+ self.version = self.version_manager.get_version(version)
+ self.parse_xml(rspec, version)
+ else:
+ self.parse_xml(rspec)
+ elif version:
+ self.create(version, ttl, expires)
else:
- self.create(version)
+ raise InvalidRSpec(
+ "No RSpec or version specified. Must specify a valid rspec string or a valid version")
- def create(self, version=None):
+ def create(self, version=None, ttl=None, expires=None):
"""
Create root element
+ ttl: time to live in minutes, this will determine the expires tag of the RSpec
"""
self.version = self.version_manager.get_version(version)
self.namespaces = self.version.namespaces
- self.parse_xml(self.version.template)
- # eg. 2011-03-23T19:53:28Z
- date_format = '%Y-%m-%dT%H:%M:%SZ'
+ self.parse_xml(self.version.template, self.version)
now = datetime.utcnow()
- generated_ts = now.strftime(date_format)
- expires_ts = (now + timedelta(hours=1)).strftime(date_format)
+ 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):
+ def parse_xml(self, xml, version=None):
self.xml.parse_xml(xml)
- self.version = None
- if self.xml.schema:
- self.version = self.version_manager.get_version_by_schema(self.xml.schema)
- else:
- #raise InvalidRSpec('unknown rspec schema: %s' % schema)
- # TODO: Should start raising an exception once SFA defines a schema.
- # for now we just use the default
- self.version = self.version_manager.get_version()
- self.version.xml = self.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:
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: %s. Must specify a valid RSpecElement" % element_type)
- self.elements[element_type] = RSpecElement(element_type, element_name, element_path)
+ 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 %s not registerd for this rspec" % element_type
+ 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={}, depth=0):
+ def get(self, element_type, filter=None, depth=0):
+ if filter is None:
+ filter = {}
elements = self.get_elements(element_type, filter)
- elements = [self.get_element_attributes(element, depth=depth) for element in elements]
+ elements = [self.xml.get_element_attributes(
+ elem, depth=depth) for elem in elements]
return elements
- def get_elements(self, element_type, filter={}):
+ 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 %s in rspec, expath expression not found." % \
- element_type
+ 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.xpath(xpath)
+ 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_node_elements()
+ 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']:
+ node.attrib['component_manager_id'] != filter['component_manager_id']:
parent = node.getparent()
- parent.remove(node)
-
+ 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)
-
-if __name__ == '__main__':
- rspec = RSpec('/tmp/resources.rspec')
- print rspec
- rspec.register_rspec_element(RSpecElements.NETWORK, 'network', '//network')
- rspec.register_rspec_element(RSpecElements.NODE, 'node', '//node')
- print rspec.get(RSpecElements.NODE)[0]
- print rspec.get(RSpecElements.NODE, depth=1)[0]
+if __name__ == '__main__':
+ import sys
+ input = sys.argv[1]
+ with open(input) as f:
+ rspec = RSpec(f.read())
+ print(rspec)
+# rspec.register_rspec_element(RSpecElements.NETWORK, 'network', '//network')
+# rspec.register_rspec_element(RSpecElements.NODE, 'node', '//node')
+# print rspec.get(RSpecElements.NODE)[0]
+# print rspec.get(RSpecElements.NODE, depth=1)[0]
git://git.onelab.eu / sfa.git / blobdiff