-from sfa.rspecs.rspec_elements import RSpecElement, RSpecElements
+from copy import deepcopy
+from lxml import etree
-class SFAv1:
- format = 'SFA'
- type = '*'
+from sfa.util.sfalogging import logger
+from sfa.util.xrn import hrn_to_urn, urn_to_hrn
+from sfa.util.plxrn import PlXrn
+
+from sfa.rspecs.baseversion import BaseVersion
+from sfa.rspecs.elements.element import Element
+from sfa.rspecs.elements.versions.pgv2Link import PGv2Link
+from sfa.rspecs.elements.versions.sfav1Node import SFAv1Node
+
+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_networks(self):
+ return Element.get_elements(self.xml, '//network', Element)
+
+ def get_nodes(self, network=None):
+ return SFAv1Node.get_nodes(self.xml)
+
+ def get_node_element(self,hostname,network):
+ if network is not None:
+ xpath="//network[@name='%s']/node[@component_id[contains(., '%s')]]" % (network,hostname)
+ else: xpath="//node[@component_id[contains(., '%s')]]" % (hostname)
+ nodes=self.xml.xpath(xpath)
+ print 'found %d nodes'%len(nodes)
+ if nodes: return nodes[0]
+ else: return None
+
+ def get_nodes_with_slivers(self, network = None):
+ return SFAv1Node.get_nodes_with_slivers_thierry(self.xml)
+
+ # xxx thierry - this seems more like it
+ # warning, the same code is duplicated in xml.py and pgv2.py..
+ def attributes_list_thierry (self, elem):
+ opts=[]
+ for (k,v) in elem.items():
+ opts.append ( (k,v.strip(),) )
+ return opts
+
+ def attributes_list(self, elem):
+ # convert a list of attribute tags into list of tuples
+ # (tagname, 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 not defaults: return []
+ return self.attributes_list_thierry(defaults)
+
+ def get_sliver_attributes(self, hostname, network=None):
+ node = self.get_node_element(hostname, network)
+ #sliver = node.find("sliver")
+ slivers = node.xpath('./sliver')
+ if not slivers: return []
+ return self.attributes_list_thierry(slivers[0])
+
+ 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:
+ nodename=node.get('component_name')
+ sliver_attributes = self.get_sliver_attributes(nodename, 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_links(self, network=None):
+ return PGv2Link.get_links(self.xml)
+
+ def get_link_requests(self):
+ return PGv2Link.get_link_requests(self.xml)
+
+ ##################
+ # 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):
+ SFAv1Node.add_nodes(self.xml, nodes)
+
+ 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_links(self, links):
+ networks = self.get_networks()
+ 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()
+ all_nodenames = [ n['component_name'] for n in all_nodes ]
+ nodes_with_slivers = [sliver['hostname'] for sliver in slivers]
+ nodes_without_slivers = set(all_nodenames).difference(set(nodes_with_slivers))
+
+ # add slivers
+ for sliver in slivers:
+ node_elem = self.get_node_element(sliver['hostname'], network)
+ if not node_elem: continue
+#thierry sliver_elem = etree.SubElement(node_elem, 'sliver')
+ sliver_elem = node_elem.add_element('sliver')
+ if 'tags' in sliver:
+ for tag in sliver['tags']:
+#thierry etree.SubElement(sliver_elem, tag['tagname']).text = value=tag['value']
+ sliver_elem.add_element (tag['tagname'],{'text':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):
+ SFAv1Node.remove_slivers(self.xml, slivers)
+
+ 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 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_networks()
+ for network in networks:
+ current_network = network.get('name')
+ if current_network and current_network not in current_networks:
+ self.xml.root.append(network.element)
+ current_networks.append(current_network)
if __name__ == '__main__':
from sfa.rspecs.rspec import RSpec
git://git.onelab.eu / sfa.git / blobdiff