def __init__(self, dict=None, xml=None):
if dict:
self.load_from_dict(dict)
elif xml:
xml_record = XML(xml)
xml_dict = xml_record.todict()
self.load_from_dict(xml_dict)
def __init__(self, dict=None, xml=None):
if dict:
self.load_from_dict(dict)
elif xml:
xml_record = XML(xml)
xml_dict = xml_record.todict()
self.load_from_dict(xml_dict)
def load(self):
"""
Parse an xml file and store it as a dict
"""
if os.path.exists(self.db_filename) and os.path.isfile(self.db_filename):
xml = XML(self.db_filename)
dict.__init__(self, xml.todict())
elif os.path.exists(self.db_filename) and not os.path.isfile(self.db_filename):
raise IOError, '%s exists but is not a file. please remove it and try again' \
% self.db_filename
else:
self.write()
self.load()
def main():
parser = create_parser();
(options, args) = parser.parse_args()
record = XML(sys.stdin.read())
record_dict = record.todict()
if args:
editDict(args, record_dict, options)
if options.DEBUG:
print "New Record:\n%s" % record_dict
record.parse_dict(record_dict)
s = record.toxml()
sys.stdout.write(s)
def main():
parser = create_parser();
(options, args) = parser.parse_args()
stdin = sys.stdin.read()
record = XML(stdin)
record_dict = record.todict()
if options.DEBUG:
pprint(record.toxml())
print "#####################################################"
printRec(record_dict, args, options)
def load_xml(self, filename):
xml = XML(filename)
categories = xml.xpath('//configuration/variables/category')
for category in categories:
section_name = category.get('id')
if not self.config.has_section(section_name):
self.config.add_section(section_name)
options = category.xpath('./variablelist/variable')
for option in options:
option_name = option.get('id')
value = option.xpath('./value')[0].text
if not value:
value = ""
self.config.set(section_name, option_name, value)
def load_xml(self, filename):
xml = XML(filename)
categories = xml.xpath("//configuration/variables/category")
for category in categories:
section_name = category.get("id")
if not self.config.has_section(section_name):
self.config.add_section(section_name)
options = category.xpath("./variablelist/variable")
for option in options:
option_name = option.get("id")
value = option.xpath("./value")[0].text
if not value:
value = ""
self.config.set(section_name, option_name, value)
def load(self):
"""
Parse an xml file and store it as a dict
"""
if os.path.exists(self.db_filename) and os.path.isfile(
self.db_filename):
xml = XML(self.db_filename)
dict.__init__(self, xml.todict())
elif os.path.exists(
self.db_filename) and not os.path.isfile(self.db_filename):
raise IOError, '%s exists but is not a file. please remove it and try again' \
% self.db_filename
else:
self.write()
self.load()
def __init__(self, conf_file):
dict.__init__(self, {})
# load config file
required_fields = set(self.default_fields.keys())
self.interface_info = XML(conf_file).todict()
for value in self.interface_info.values():
if isinstance(value, list):
for record in value:
if isinstance(record, dict) and \
required_fields.issubset(record.keys()):
hrn, address, port = record['hrn'], record['addr'], record['port']
# sometime this is called at a very early stage with no config loaded
# avoid to remember this instance in such a case
if not address or not port:
continue
interface = Interface(hrn, address, port)
self[hrn] = interface
def __init__(self, rspec="", version=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.elements = {}
if 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)
else:
raise InvalidRSpec("No RSpec or version specified. Must specify a valid rspec string or a valid version")
def __init__(self, rspec="", version=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.elements = {}
if 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)
else:
raise InvalidRSpec("No RSpec or version specified. Must specify a valid rspec string or a valid version")
class ApiVersions:
required_fields = ['version', 'url']
template = """<api_versions>
<api_version name="" version="" url="" />
</api_versions>"""
def __init__(self, string=None, filename=None, create=False):
self.xml = None
if create:
self.create()
elif string:
self.load(string)
elif filename:
self.load(filename)
else:
# load the default file
c = Config()
api_versions_file = os.path.sep.join([c.config_path, 'api_versions.xml'])
self.load(api_versions_file)
def create(self):
self.xml = XML(string=ApiVersions.template)
def load(self, source):
self.xml = XML(source)
def get_versions(self):
versions = {}
for value in self.xml.todict().values():
if not value:
continue
if isinstance(value, list):
for item in value:
if isinstance(item, dict) and \
set(ApiVersions.required_fields).issubset(item.keys()) and \
item['version'] != '' and item['url'] != '':
versions[str(item['version'])] = item['url']
return versions
def main():
parser = create_parser()
(options, args) = parser.parse_args()
record = XML(sys.stdin.read())
record_dict = record.todict()
if args:
editDict(args, record_dict, options)
if options.DEBUG:
print "New Record:\n%s" % record_dict
record.parse_dict(record_dict)
s = record.toxml()
sys.stdout.write(s)
class ApiVersions:
required_fields = ['version', 'url']
template = """<api_versions>
<api_version name="" version="" url="" />
</api_versions>"""
def __init__(self, string=None, filename=None, create=False):
self.xml = None
if create:
self.create()
elif string:
self.load(string)
elif filename:
self.load(filename)
else:
# load the default file
c = Config()
api_versions_file = os.path.sep.join([c.config_path, 'api_versions.xml'])
self.load(api_versions_file)
def create(self):
self.xml = XML(string=ApiVersions.template)
def load(self, source):
self.xml = XML(source)
def get_versions(self):
versions = {}
for value in self.xml.todict().values():
if not value:
continue
if isinstance(value, list):
for item in value:
if isinstance(item, dict) and \
set(ApiVersions.required_fields).issubset(item.keys()) and \
item['version'] != '' and item['url'] != '':
versions[str(item['version'])] = item['url']
return versions
class Interfaces(dict):
"""
Interfaces is a base class for managing information on the
peers we are federated with. Provides connections (xmlrpc or soap) to federated peers
"""
# fields that must be specified in the config file
default_fields = {
'hrn': '',
'addr': '',
'port': '',
}
# defined by the class
default_dict = {}
def __init__(self, conf_file):
dict.__init__(self, {})
# load config file
required_fields = set(self.default_fields.keys())
self.interface_info = XML(conf_file).todict()
for value in self.interface_info.values():
if isinstance(value, list):
for record in value:
if isinstance(record, dict) and \
required_fields.issubset(record.keys()):
hrn, address, port = record['hrn'], record['addr'], record['port']
# sometime this is called at a very early stage with no config loaded
# avoid to remember this instance in such a case
if not address or not port:
continue
interface = Interface(hrn, address, port)
self[hrn] = interface
def server_proxy(self, hrn, key_file, cert_file, timeout=30):
return self[hrn].server_proxy(key_file, cert_file, timeout)
def create(self):
self.xml = XML(string=ApiVersions.template)
class RSpec:
def __init__(self, rspec="", version=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.elements = {}
if 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)
else:
raise InvalidRSpec("No RSpec or version specified. Must specify a valid rspec string or a valid version")
def create(self, version=None):
"""
Create root element
"""
self.version = self.version_manager.get_version(version)
self.namespaces = self.version.namespaces
self.parse_xml(self.version.template, self.version)
# eg. 2011-03-23T19:53:28Z
date_format = "%Y-%m-%dT%H:%M:%SZ"
now = datetime.utcnow()
generated_ts = now.strftime(date_format)
expires_ts = (now + timedelta(hours=1)).strftime(date_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: %s' % 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: %s. Must specify a valid RSpecElement" % 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
raise InvalidRSpecElement(element_type, extra=msg)
return self.elements[element_type]
def get(self, element_type, filter={}, depth=0):
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={}):
"""
search for a registered element
"""
if element_type not in self.elements:
msg = "Unable to search for element %s in rspec, expath expression not found." % 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_node_elements()
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)
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)
def write(self):
xml = XML()
xml.parseDict(self)
db_file = open(self.db_filename, 'w')
db_file.write(data.toprettyxml())
db_file.close()
def write(self):
xml = XML()
xml.parseDict(self)
db_file = open(self.db_filename, 'w')
db_file.write(data.toprettyxml())
db_file.close()
def make_record_xml (xml):
xml_record = XML(xml)
xml_dict = xml_record.todict()
logger.info("load from xml, keys=%s"%xml_dict.keys())
return make_record_dict (xml_dict)
class RSpec:
def __init__(self, rspec="", version=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.elements = {}
if 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)
else:
raise InvalidRSpec("No RSpec or version specified. Must specify a valid rspec string or a valid version")
def create(self, version=None):
"""
Create root element
"""
self.version = self.version_manager.get_version(version)
self.namespaces = self.version.namespaces
self.parse_xml(self.version.template, self.version)
# eg. 2011-03-23T19:53:28Z
date_format = '%Y-%m-%dT%H:%M:%SZ'
now = datetime.utcnow()
generated_ts = now.strftime(date_format)
expires_ts = (now + timedelta(hours=1)).strftime(date_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: %s' % 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: %s. Must specify a valid RSpecElement" % 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
raise InvalidRSpecElement(element_type, extra=msg)
return self.elements[element_type]
def get(self, element_type, filter={}, depth=0):
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={}):
"""
search for a registered element
"""
if element_type not in self.elements:
msg = "Unable to search for element %s in rspec, expath expression not found." % \
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)
def make_record_xml(xml):
xml_record = XML(xml)
xml_dict = xml_record.todict()
logger.info("load from xml, keys=%s" % xml_dict.keys())
return make_record_dict(xml_dict)
def save_as_xml (self):
# xxx not sure about the scope here
input_dict = dict( [ (key, getattr(self,key)) for key in self.fields() if getattr(self,key,None) ] )
xml_record=XML("<record />")
xml_record.parse_dict (input_dict)
return xml_record.toxml()
def save_as_xml (self):
# xxx not sure about the scope here
input_dict = dict( [ (key, getattr(self,key)) for key in self.fields() if getattr(self,key,None) ] )
xml_record=XML("<record />")
xml_record.parse_dict (input_dict)
return xml_record.toxml()
class RSpec:
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:
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:
raise InvalidRSpec("No RSpec or version specified. Must specify a valid rspec string or a valid version")
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, self.version)
now = datetime.utcnow()
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: %s' % 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: %s. Must specify a valid RSpecElement" % 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
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 %s in rspec, expath expression not found." % \
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)
def load(self, source):
self.xml = XML(source)
