+from copy import deepcopy
+from lxml import etree
+from sfa.util.xrn import hrn_to_urn, urn_to_hrn
+from sfa.util.plxrn import PlXrn
+from sfa.rspecs.rspec_version import BaseVersion
from sfa.rspecs.rspec_elements import RSpecElement, RSpecElements
+from sfa.rspecs.elements.versions.pgv2Link import PGv2Link
-class SFAv1:
- format = 'SFA'
- type = '*'
+class SFAv1(BaseVersion):
+ enabled = True
+ type = 'SFA'
+ content_type = '*'
version = '1'
schema = None
- namespaces = {}
- elements = [
- RSpecElement(RSpecElements.NETWORK, 'network', '//network'),
- RSpecElement(RSpecElements.NODE, 'node', '//node'),
- RSpecElement(RSpecElements.SLIVER, 'sliver', '//node/sliver'),
- ]
+ namespace = None
+ extensions = {}
+ namespaces = None
+ elements = []
+ template = '<RSpec type="%s"></RSpec>' % type
+ def get_network_elements(self):
+ return self.xml.xpath('//network')
+
+ def get_networks(self):
+ return self.xml.xpath('//network[@name]/@name')
+
+ def get_node_element(self, hostname, network=None):
+ if network:
+ names = self.xml.xpath('//network[@name="%s"]//node/hostname' % network)
+ else:
+ names = self.xml.xpath('//node/hostname')
+ for name in names:
+ if str(name.text).strip() == hostname:
+ return name.getparent()
+ return None
+
+ def get_node_elements(self, network=None):
+ if network:
+ return self.xml.xpath('//network[@name="%s"]//node' % network)
+ else:
+ return self.xml.xpath('//node')
+
+ def get_nodes(self, network=None):
+ if network == None:
+ nodes = self.xml.xpath('//node/hostname/text()')
+ else:
+ nodes = self.xml.xpath('//network[@name="%s"]//node/hostname/text()' % network)
+
+ nodes = [node.strip() for node in nodes]
+ return nodes
+
+ def get_nodes_with_slivers(self, network = None):
+ if network:
+ nodes = self.xml.xpath('//network[@name="%s"]//node[sliver]/hostname/text()' % network)
+ else:
+ nodes = self.xml.xpath('//node[sliver]/hostname/text()')
+
+ nodes = [node.strip() for node in nodes]
+ return nodes
+
+ def get_nodes_without_slivers(self, network=None):
+ xpath_nodes_without_slivers = '//node[not(sliver)]/hostname/text()'
+ xpath_nodes_without_slivers_in_network = '//network[@name="%s"]//node[not(sliver)]/hostname/text()'
+ if network:
+ return self.xml.xpath('//network[@name="%s"]//node[not(sliver)]/hostname/text()' % network)
+ else:
+ return self.xml.xpath('//node[not(sliver)]/hostname/text()')
+
+ def attributes_list(self, elem):
+ # convert a list of attribute tags into list of tuples
+ # (tagnme, text_value)
+ opts = []
+ if elem is not None:
+ for e in elem:
+ opts.append((e.tag, str(e.text).strip()))
+ return opts
+
+ def get_default_sliver_attributes(self, network=None):
+ if network:
+ defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
+ else:
+ defaults = self.xml.xpath("//sliver_defaults")
+ if isinstance(defaults, list) and defaults:
+ defaults = defaults[0]
+ return self.attributes_list(defaults)
+
+ def get_sliver_attributes(self, hostname, network=None):
+ attributes = []
+ node = self.get_node_element(hostname, network)
+ #sliver = node.find("sliver")
+ slivers = node.xpath('./sliver')
+ if isinstance(slivers, list) and slivers:
+ attributes = self.attributes_list(slivers[0])
+ return attributes
+
+ def get_slice_attributes(self, network=None):
+ slice_attributes = []
+ nodes_with_slivers = self.get_nodes_with_slivers(network)
+ for default_attribute in self.get_default_sliver_attributes(network):
+ attribute = {'name': str(default_attribute[0]), 'value': str(default_attribute[1]), 'node_id': None}
+ slice_attributes.append(attribute)
+ for node in nodes_with_slivers:
+ sliver_attributes = self.get_sliver_attributes(node, network)
+ for sliver_attribute in sliver_attributes:
+ attribute = {'name': str(sliver_attribute[0]), 'value': str(sliver_attribute[1]), 'node_id': node}
+ slice_attributes.append(attribute)
+ return slice_attributes
+
+ def get_site_nodes(self, siteid, network=None):
+ if network:
+ nodes = self.xml.xpath('//network[@name="%s"]/site[@id="%s"]/node/hostname/text()' % \
+ (network, siteid))
+ else:
+ nodes = self.xml.xpath('//site[@id="%s"]/node/hostname/text()' % siteid)
+ return nodes
+
+ def get_links(self, network=None):
+ return PGv2Link.get_links(self.xml)
+
+ def get_link_requests(self):
+ return PGv2Link.get_link_requests(self.xml)
+
+ def get_link(self, fromnode, tonode, network=None):
+ fromsite = fromnode.getparent()
+ tosite = tonode.getparent()
+ fromid = fromsite.get("id")
+ toid = tosite.get("id")
+ if network:
+ query = "//network[@name='%s']" % network + "/link[@endpoints = '%s %s']"
+ else:
+ query = "//link[@endpoints = '%s %s']"
+
+ results = self.rspec.xpath(query % (fromid, toid))
+ if not results:
+ results = self.rspec.xpath(query % (toid, fromid))
+ return results
+
+ def query_links(self, fromnode, tonode, network=None):
+ return get_link(fromnode, tonode, network)
+
+ def get_vlinks(self, network=None):
+ vlinklist = []
+ if network:
+ vlinks = self.xml.xpath("//network[@name='%s']//vlink" % network)
+ else:
+ vlinks = self.xml.xpath("//vlink")
+ for vlink in vlinks:
+ endpoints = vlink.get("endpoints")
+ (end1, end2) = endpoints.split()
+ if network:
+ node1 = self.xml.xpath('//network[@name="%s"]//node[@id="%s"]/hostname/text()' % \
+ (network, end1))[0]
+ node2 = self.xml.xpath('//network[@name="%s"]//node[@id="%s"]/hostname/text()' % \
+ (network, end2))[0]
+ else:
+ node1 = self.xml.xpath('//node[@id="%s"]/hostname/text()' % end1)[0]
+ node2 = self.xml.xpath('//node[@id="%s"]/hostname/text()' % end2)[0]
+ desc = "%s <--> %s" % (node1, node2)
+ kbps = vlink.find("kbps")
+ vlinklist.append((endpoints, desc, kbps.text))
+ return vlinklist
+
+ def get_vlink(self, endponts, network=None):
+ if network:
+ query = "//network[@name='%s']//vlink[@endpoints = '%s']" % (network, endpoints)
+ else:
+ query = "//vlink[@endpoints = '%s']" % (network, endpoints)
+ results = self.rspec.xpath(query)
+ return results
+
+ def query_vlinks(self, endpoints, network=None):
+ return get_vlink(endpoints,network)
+
+
+ ##################
+ # Builder
+ ##################
+
+ def add_network(self, network):
+ network_tags = self.xml.xpath('//network[@name="%s"]' % network)
+ if not network_tags:
+ network_tag = etree.SubElement(self.xml.root, 'network', name=network)
+ else:
+ network_tag = network_tags[0]
+ return network_tag
+
+ def add_nodes(self, nodes, network = None, no_dupes=False):
+ if not isinstance(nodes, list):
+ nodes = [nodes]
+ for node in nodes:
+ if no_dupes and \
+ self.get_node_element(node['hostname']):
+ # node already exists
+ continue
+
+ network_tag = self.xml.root
+ if 'network' in node:
+ network = node['network']
+ network_tag = self.add_network(network)
+
+ node_tag = etree.SubElement(network_tag, 'node')
+ if 'network' in node:
+ node_tag.set('component_manager_id', hrn_to_urn(network, 'authority+sa'))
+ if 'urn' in node:
+ node_tag.set('component_id', node['urn'])
+ if 'site_urn' in node:
+ node_tag.set('site_id', node['site_urn'])
+ if 'node_id' in node:
+ node_tag.set('node_id', 'n'+str(node['node_id']))
+ if 'boot_state' in node:
+ node_tag.set('boot_state', node['boot_state'])
+ if 'hostname' in node:
+ node_tag.set('component_name', node['hostname'])
+ hostname_tag = etree.SubElement(node_tag, 'hostname').text = node['hostname']
+ if 'interfaces' in node:
+ i = 0
+ for interface in node['interfaces']:
+ if 'bwlimit' in interface and interface['bwlimit']:
+ bwlimit = etree.SubElement(node_tag, 'bw_limit', units='kbps').text = str(interface['bwlimit']/1000)
+ comp_id = PlXrn(auth=network, interface='node%s:eth%s' % (node['node_id'], i)).get_urn()
+ ipaddr = interface['ip']
+ interface_tag = etree.SubElement(node_tag, 'interface', component_id=comp_id, ipv4=ipaddr)
+ i+=1
+ if 'bw_unallocated' in node:
+ bw_unallocated = etree.SubElement(node_tag, 'bw_unallocated', units='kbps').text = str(node['bw_unallocated']/1000)
+ if 'tags' in node:
+ for tag in node['tags']:
+ # expose this hard wired list of tags, plus the ones that are marked 'sfa' in their category
+ if tag['tagname'] in ['fcdistro', 'arch'] or 'sfa' in tag['category'].split('/'):
+ tag_element = etree.SubElement(node_tag, tag['tagname']).text=tag['value']
+
+ if 'site' in node:
+ longitude = str(node['site']['longitude'])
+ latitude = str(node['site']['latitude'])
+ location = etree.SubElement(node_tag, 'location', country='unknown', \
+ longitude=longitude, latitude=latitude)
+
+ def merge_node(self, source_node_tag, network, no_dupes=False):
+ if no_dupes and self.get_node_element(node['hostname']):
+ # node already exists
+ return
+
+ network_tag = self.add_network(network)
+ network_tag.append(deepcopy(source_node_tag))
+
+ def add_interfaces(self, interfaces):
+ pass
+
+ def add_links(self, links):
+ networks = self.get_network_elements()
+ if len(networks) > 0:
+ xml = networks[0]
+ else:
+ xml = self.xml
+ PGv2Link.add_links(xml, links)
+
+ def add_link_requests(self, links):
+ PGv2Link.add_link_requests(self.xml, links)
+
+ def add_slivers(self, slivers, network=None, sliver_urn=None, no_dupes=False, append=False):
+ # add slice name to network tag
+ network_tags = self.xml.xpath('//network')
+ if network_tags:
+ network_tag = network_tags[0]
+ network_tag.set('slice', urn_to_hrn(sliver_urn)[0])
+
+ all_nodes = self.get_nodes()
+ nodes_with_slivers = [sliver['hostname'] for sliver in slivers]
+ nodes_without_slivers = set(all_nodes).difference(nodes_with_slivers)
+
+ # add slivers
+ for sliver in slivers:
+ node_elem = self.get_node_element(sliver['hostname'], network)
+ if not node_elem: continue
+ sliver_elem = etree.SubElement(node_elem, 'sliver')
+ if 'tags' in sliver:
+ for tag in sliver['tags']:
+ etree.SubElement(sliver_elem, tag['tagname']).text = value=tag['value']
+
+ # remove all nodes without slivers
+ if not append:
+ for node in nodes_without_slivers:
+ node_elem = self.get_node_element(node)
+ parent = node_elem.getparent()
+ parent.remove(node_elem)
+
+ def remove_slivers(self, slivers, network=None, no_dupes=False):
+ for sliver in slivers:
+ node_elem = self.get_node_element(sliver['hostname'], network)
+ sliver_elem = node_elem.find('sliver')
+ if sliver_elem != None:
+ node_elem.remove(sliver_elem)
+
+ def add_default_sliver_attribute(self, name, value, network=None):
+ if network:
+ defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
+ else:
+ defaults = self.xml.xpath("//sliver_defaults" % network)
+ if not defaults :
+ network_tag = self.xml.xpath("//network[@name='%s']" % network)
+ if isinstance(network_tag, list):
+ network_tag = network_tag[0]
+ defaults = self.xml.add_element('sliver_defaults', attrs={}, parent=network_tag)
+ elif isinstance(defaults, list):
+ defaults = defaults[0]
+ self.xml.add_attribute(defaults, name, value)
+
+ def add_sliver_attribute(self, hostname, name, value, network=None):
+ node = self.get_node_element(hostname, network)
+ sliver = node.find("sliver")
+ self.xml.add_attribute(sliver, name, value)
+
+ def remove_default_sliver_attribute(self, name, value, network=None):
+ if network:
+ defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
+ else:
+ defaults = self.xml.xpath("//sliver_defaults" % network)
+ self.xml.remove_attribute(defaults, name, value)
+
+ def remove_sliver_attribute(self, hostname, name, value, network=None):
+ node = self.get_node_element(hostname, network)
+ sliver = node.find("sliver")
+ self.xml.remove_attribute(sliver, name, value)
+
+ def add_vlink(self, fromhost, tohost, kbps, network=None):
+ fromnode = self.get_node_element(fromhost, network)
+ tonode = self.get_node_element(tohost, network)
+ links = self.get_link(fromnode, tonode, network)
+
+ for link in links:
+ vlink = etree.SubElement(link, "vlink")
+ fromid = fromnode.get("id")
+ toid = tonode.get("id")
+ vlink.set("endpoints", "%s %s" % (fromid, toid))
+ self.xml.add_attribute(vlink, "kbps", kbps)
+
+
+ def remove_vlink(self, endpoints, network=None):
+ vlinks = self.query_vlinks(endpoints, network)
+ for vlink in vlinks:
+ vlink.getparent().remove(vlink)
+
+
+ def merge(self, in_rspec):
+ """
+ Merge contents for specified rspec with current rspec
+ """
+
+ from sfa.rspecs.rspec import RSpec
+ if isinstance(in_rspec, RSpec):
+ rspec = in_rspec
+ else:
+ rspec = RSpec(in_rspec)
+ if rspec.version.type.lower() == 'protogeni':
+ from sfa.rspecs.rspec_converter import RSpecConverter
+ in_rspec = RSpecConverter.to_sfa_rspec(rspec.toxml())
+ rspec = RSpec(in_rspec)
+
+ # just copy over all networks
+ current_networks = self.get_networks()
+ networks = rspec.version.get_network_elements()
+ for network in networks:
+ current_network = network.get('name')
+ if current_network and current_network not in current_networks:
+ self.xml.root.append(network)
+ current_networks.append(current_network)
if __name__ == '__main__':
from sfa.rspecs.rspec import RSpec
git://git.onelab.eu / sfa.git / blobdiff