replaceing resolve with Resolve

[sfa.git] / sfa / methods / List.py

diff --git a/sfa/methods/List.py b/sfa/methods/List.py
new file mode 100644 (file)
index 0000000..36607dd
--- /dev/null
+++ b/sfa/methods/List.py
@@ -0,0 +1,46 @@
+### $Id: list.py 16588 2010-01-13 17:53:44Z anil $
+### $URL: https://svn.planet-lab.org/svn/sfa/trunk/sfa/methods/list.py $
+
+from sfa.util.faults import *
+from sfa.util.namespace import *
+from sfa.util.method import Method
+from sfa.util.parameter import Parameter, Mixed
+from sfa.util.record import SfaRecord
+from sfa.trust.credential import Credential
+
+class list(Method):
+    """
+    List the records in an authority. 
+
+    @param cred credential string specifying the rights of the caller
+    @param hrn human readable name of authority to list (hrn or urn)
+    @return list of record dictionaries         
+    """
+    interfaces = ['registry']
+    
+    accepts = [
+        Parameter(str, "Credential string"),
+        Parameter(str, "Human readable name (hrn or urn)"),
+        Mixed(Parameter(str, "Human readable name of the original caller"),
+              Parameter(None, "Origin hrn not specified"))
+        ]
+
+    returns = [SfaRecord]
+    
+    def call(self, cred, xrn, origin_hrn=None):
+        hrn, type = urn_to_hrn(xrn)
+        user_cred = Credential(string=cred)
+        #log the call
+        if not origin_hrn:
+            origin_hrn = user_cred.get_gid_caller().get_hrn()
+        self.api.logger.info("interface: %s\tcaller-hrn: %s\ttarget-hrn: %s\tmethod-name: %s"%(self.api.interface, origin_hrn, hrn, self.name))
+       
+        # validate the cred 
+        self.api.auth.check(cred, 'list')
+        
+        # send the call to the right manager    
+        manager_base = 'sfa.managers'
+        mgr_type = self.api.config.SFA_REGISTRY_TYPE
+        manager_module = manager_base + ".registry_manager_%s" % mgr_type
+        manager = __import__(manager_module, fromlist=[manager_base])
+        return manager.list(self.api, xrn, origin_hrn)