Addind leases for Slab Rspecs.

diff --git a/sfa/rspecs/elements/versions/slabv1Lease.py b/sfa/rspecs/elements/versions/slabv1Lease.py
new file mode 100644 (file)
index 0000000..a966346
--- /dev/null
+++ b/sfa/rspecs/elements/versions/slabv1Lease.py
@@ -0,0 +1,61 @@
+from sfa.util.sfalogging import logger
+from sfa.util.xml import XpathFilter
+from sfa.util.xrn import Xrn
+
+from sfa.rspecs.elements.element import Element
+from sfa.rspecs.elements.node import Node
+from sfa.rspecs.elements.sliver import Sliver
+from sfa.rspecs.elements.location import Location
+from sfa.rspecs.elements.hardware_type import HardwareType
+
+
+
+
+from sfa.rspecs.elements.versions.slabv1Sliver import Slabv1Sliver
+#from sfa.rspecs.elements.versions.sfav1PLTag import SFAv1PLTag
+#from sfa.rspecs.elements.versions.pgv2Services import PGv2Services
+from sfa.rspecs.elements.lease import Lease
+
+from sfa.planetlab.plxrn import xrn_to_hostname
+
+class Slabv1Lease:
+
+    @staticmethod
+    def add_leases(xml, leases):
+        
+        network_elems = xml.xpath('//network')
+        if len(network_elems) > 0:
+            network_elem = network_elems[0]
+        elif len(leases) > 0:
+            network_urn = Xrn(leases[0]['component_id']).get_authority_urn().split(':')[0]
+            network_elem = xml.add_element('network', name = network_urn)
+        else:
+            network_elem = xml
+         
+        lease_elems = []       
+        for lease in leases:
+            lease_fields = ['lease_id', 'component_id', 'slice_id', 't_from', 't_until']
+            lease_elem = network_elem.add_instance('lease', lease, lease_fields)
+            lease_elems.append(lease_elem)
+
+
+    @staticmethod
+    def get_leases(xml, filter={}):
+        xpath = '//lease%s | //default:lease%s' % (XpathFilter.xpath(filter), XpathFilter.xpath(filter))
+        lease_elems = xml.xpath(xpath)
+        return Slabv1Lease.get_lease_objs(lease_elems)
+
+    @staticmethod
+    def get_lease_objs(lease_elems):
+        leases = []    
+        for lease_elem in lease_elems:
+            lease = Lease(lease_elem.attrib, lease_elem)
+            if lease.get('lease_id'):
+               lease['lease_id'] = lease_elem.attrib['lease_id']
+            lease['component_id'] = lease_elem.attrib['component_id']
+            lease['slice_id'] = lease_elem.attrib['slice_id']
+            lease['t_from'] = lease_elem.attrib['t_from']
+            lease['t_until'] = lease_elem.attrib['t_until']
+
+            leases.append(lease)
+        return leases      
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