From 341a39a0fff9f7990022e819cdc704e5ed9fb121 Mon Sep 17 00:00:00 2001
From: Narayan Desai <desai@mcs.anl.gov>
Date: Thu, 20 Apr 2006 02:19:34 +0000
Subject: Proxy.py downsync from the cobalt repo

git-svn-id: https://svn.mcs.anl.gov/repos/bcfg/trunk/bcfg2@1846 ce84e21b-d406-0410-9b95-82705330c041
---
 src/lib/Client/Proxy.py | 65 ++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 54 insertions(+), 11 deletions(-)

(limited to 'src')

diff --git a/src/lib/Client/Proxy.py b/src/lib/Client/Proxy.py
index a809e70f8..670976149 100644
--- a/src/lib/Client/Proxy.py
+++ b/src/lib/Client/Proxy.py
@@ -10,9 +10,18 @@ class CobaltComponentError(Exception):
 class SafeProxy:
     '''Wrapper for proxy'''
     _cfile = ConfigParser.ConfigParser()
-    _cfile.read(['/etc/bcfg2.conf'])
-    _components = _cfile._sections['components']
-    _authinfo = ('root', _cfile.get('communication', 'password'))
+    _cfpath = '/etc/bcfg2.conf'
+    _cfile.read([_cfpath])
+    try:
+        _components = _cfile._sections['components']
+    except KeyError:
+        print "cobalt.conf doesn't contain a valid components section"
+        raise SystemExit, 1
+    try:
+        _authinfo = ('root', _cfile.get('communication', 'password'))
+    except KeyError:
+        print "cobalt.conf doesn't contain a valid communication setup"
+        raise SystemExit, 1
     _retries = 4
 
     def __init__(self, component, url=None):
@@ -30,25 +39,25 @@ class SafeProxy:
         except:
             self.log.error("Failed to initialize xml-rpc", exc_info=1)
 
-    def run_method(self, method_name, method_args):
+    def run_method(self, methodName, methodArgs):
         ''' Perform an XMLRPC invocation against the server'''
-        method = getattr(self.proxy, method_name)
+        method = getattr(self.proxy, methodName)
         for irs in range(self._retries):
             try:
-                ret = apply(method, self._authinfo + method_args)
+                ret = apply(method, self._authinfo + methodArgs)
                 if irs > 0:
                     self.log.warning("Required %d attempts to contact %s for operation %s" %
-                                     (irs, self.component, method_name))
-                self.log.debug("%s completed successfully" % (method_name))
+                                     (irs, self.component, methodName))
+                self.log.debug("%s completed successfully" % (methodName))
                 return ret
             except xmlrpclib.ProtocolError:
                 self.log.error("Server failure: Protocol Error")
                 raise xmlrpclib.Fault(20, "Server Failure")
             except xmlrpclib.Fault:
-                self.log.debug("Operation %s completed with fault" % (method_name))
+                self.log.debug("Operation %s completed with fault" % (methodName))
                 raise
             except socket.error, serr:
-                self.log.debug("Attempting %s (%d of %d) failed because %s" % (method_name, (irs+1),
+                self.log.debug("Attempting %s (%d of %d) failed because %s" % (methodName, (irs+1),
                                                                                self._retries, serr))
                 time.sleep(0.5)                
             except:
@@ -70,6 +79,10 @@ class SafeProxy:
             curl = sdata[0]['url']
             self._components[name] = curl
             return curl
+
+    def dummy(self):
+        '''dummy method for pylint'''
+        return True
             
 class ComponentProxy(SafeProxy):
     '''Component Proxy instantiates a SafeProxy to a component and registers local functions
@@ -88,12 +101,42 @@ class service_location(ComponentProxy):
     name = 'service-location'
     methods = ['AssertService', 'LookupService', 'DeassertService']
 
+class allocation_manager(ComponentProxy):
+    '''allocation manager specific component proxy'''
+    name = 'allocation-manager'
+    methods = ['GetProject']
+
+class file_stager(ComponentProxy):
+    '''File staging component'''
+    name = 'file-stager'
+    methods = ['StageInit', 'FinalizeStage']
+
 class process_manager(ComponentProxy):
     '''process manager specific component proxy'''
     name = 'process-manager'
-    methods = ['CreateProcessGroup', 'GetProcessGroup']
+    methods = ['CreateProcessGroup', 'GetProcessGroup', 'KillProcessGroup', 'WaitProcessGroup']
+
+class queue_manager(ComponentProxy):
+    '''queue manager proxy'''
+    name = 'queue-manager'
+    methods = ['AddJob', 'GetJobs', 'DelJobs', 'RunJobs', 'SetJobs', 'SetJobID']
+
+class scheduler(ComponentProxy):
+    '''scheduler proxy'''
+    name = 'scheduler'
+    methods = ['AddReservation', 'DelReservation', 'GetPartition', 'AddPartition', 'DelPartition', 'Set']
 
 class bcfg2(ComponentProxy):
     '''bcfg2 client code'''
     name = 'bcfg2'
     methods = ['AssertProfile', 'GetConfig', 'GetProbes', 'RecvProbeData', 'RecvStats']
+
+class CommDict(dict):
+    '''CommDict is a dictionary that automatically instantiates a component proxy upon access'''
+    commnames = {'pm':process_manager, 'fs':file_stager, 'am':allocation_manager,
+                 'sched':scheduler, 'qm':queue_manager}
+
+    def __getitem__(self, name):
+        if not self.has_key(name):
+            self.__setitem__(name, self.commnames[name]())
+        return dict.__getitem__(self, name)
-- 
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