+#!/usr/bin/python
+from __future__ import with_statement
+from lxml import etree
+from xmlbuilder import XMLBuilder
+from StringIO import StringIO
+from sfa.util.xrn import *
+
+xslt='''<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+<xsl:output method="xml" indent="no"/>
+
+<xsl:template match="/|comment()|processing-instruction()">
+ <xsl:copy>
+ <xsl:apply-templates/>
+ </xsl:copy>
+</xsl:template>
+
+<xsl:template match="*">
+ <xsl:element name="{local-name()}">
+ <xsl:apply-templates select="@*|node()"/>
+ </xsl:element>
+</xsl:template>
+
+<xsl:template match="@*">
+ <xsl:attribute name="{local-name()}">
+ <xsl:value-of select="."/>
+ </xsl:attribute>
+</xsl:template>
+</xsl:stylesheet>
+'''
+
+xslt_doc=etree.parse(StringIO(xslt))
+transform=etree.XSLT(xslt_doc)
+
+class PGRSpec:
+ xml_tree = None
+ namespaces = {'rspecv2':'http://www.protogeni.net/resources/rspec/0.2'}
+
+
+ def __init__(self, rspec="", namespaces={}):
+ try:
+ self.xml_tree = etree.parse(rspec)
+ if namespaces:
+ self.namespaces = namespaces
+
+ except IOError:
+ # 'rspec' file doesnt exist. 'rspec' is proably an xml string
+ try:
+ self.xml_tree = etree.parse(StringIO(rspec))
+ except:
+ raise IOError("Must specify a xml file or xml string. Received: " + rspec )
+
+ def get_network(self):
+ network = None
+ root = self.xml_tree.getroot()
+ nodes = root.xpath("//rspecv2:node[@component_manager_uuid][1]", self.namespaces)
+ if nodes:
+ network = nodes[0].get('component_manager_uuid')
+ return network
+
+ def get_nodes(self, nodes_with_slivers=False):
+ root = self.xml_tree.getroot()
+ nodes = root.xpath("//rspecv2:node", self.namespaces)
+ return nodes
+
+
+ def to_sfa_node(self, site, node, i=0):
+ cm_urn = node.get('component_manager_uuid')
+ c_name = node.get('component_name')
+ c_urn = node.get('component_uuid')
+ c_hrn, _ = urn_to_hrn(c_urn)
+ node_tag = etree.SubElement(site, "node")
+ node_tag.set("component_manager_uuid", cm_urn)
+ node_tag.set("component_name", c_name)
+ node_tag.set("component_uuid", c_urn)
+ hostname_tag = etree.SubElement(node_tag, "hostname").text = c_hrn
+ urn_tag = etree.SubElement(node_tag, "urn").text = c_hrn
+ for child in node.getchildren():
+ node_tag.append(transform(child).getroot())
+
+
+ def to_sfa_network(self, xml):
+ network_urn = self.get_network()
+ network, _ = urn_to_hrn(network_urn)
+ nodes = self.get_nodes()
+ network_tag = etree.SubElement(xml, "network")
+ network_tag.set("name", network)
+ network_tag.set("id", network)
+ site_tag = etree.SubElement(network_tag, "Site")
+ site_tag.set("id", network)
+ name = etree.SubElement(site_tag, "name").text = network
+ i = 0
+ for node in nodes:
+ self.to_sfa_node(site_tag, node, i)
+
+ def to_sfa_rspec(self):
+ header = '<?xml version="1.0"?>\n'
+ xml = etree.Element("RSpec", type="SFA")
+ self.to_sfa_network(xml)
+ return header + etree.tostring(xml, pretty_print=True)
+
+if __name__ == '__main__':
+ rspec = 'protogeni.rspec'
+ PGRSpec = PGRSpec(rspec)
+ print PGRSpec.to_sfa_rspec()