- def __init__(self, auth=None, cainfo=None):
-
- config = Config()
- self.auth = auth
- self.cainfo = cainfo
- self.errors = []
- self.trace = []
- self.calls = {}
- self.multicall = False
- self.url = config.manifold_url
- self.server = xmlrpclib.Server(self.url, verbose=False, allow_none=True)
-
- def __getattr__(self, methodName):
- def func(*args, **kwds):
- result=getattr(self.server, methodName)(self.auth, *args, **kwds)
- ### debug
- if debug:
- print '===> backend call',methodName, self.auth, self.url,'->',
- if not result: print "no/empty result"
- elif isinstance (result,str): print "result is '%s'"%result
- elif isinstance (result,list): print "result is a %d-elts list"%len(result)
- else: print "dont know how to display result"
- ###
- return result
- return func
-
- def send_manifold_query (self, manifold_query):
- (action,method)= (manifold_query.action,manifold_query.method)
- if action=='get':
- return self.server.Get(self.auth, method, manifold_query.filters, {}, manifold_query.fields)
- # xxx...
- else:
- print "WARNING: ManifoldAPI.send_manifold_query: only 'get' implemented for now"
-
+ def __init__(self, auth=None, cainfo=None):
+
+ config = Config()
+ self.auth = auth
+ self.cainfo = cainfo
+ self.errors = []
+ self.trace = []
+ self.calls = {}
+ self.multicall = False
+ self.url = config.manifold_url
+ self.server = xmlrpclib.Server(self.url, verbose=False, allow_none=True)
+
+ def __repr__ (self): return "ManifoldAPI[%s]"%self.url
+
+ # xxx temporary code for scaffolding a ManifolResult on top of an API that does not expose error info
+ # as of march 2013 we work with an API that essentially either returns the value, or raises
+ # an xmlrpclib.Fault exception with always the same 8002 code
+ # since most of the time we're getting this kind of issues for expired sessions
+ # (looks like sessions are rather short-lived), for now the choice is to map these errors on
+ # a SESSION_EXPIRED code
+ def __getattr__(self, methodName):
+ def func(*args, **kwds):
+ if (debug):
+ print "entering ManifoldAPI.%s"%methodName,
+ print "args",args,
+ print "kwds",kwds
+ try:
+ result=getattr(self.server, methodName)(self.auth, *args, **kwds)
+ if debug:
+ print '===> backend call',methodName, self.auth, self.url,'->',
+ if not result: print "[no/empty result]"
+ elif isinstance (result,str): print "result is '%s'"%result
+ elif isinstance (result,list): print "result is a %d-elts list"%len(result)
+ else: print "[dont know how to display result]"
+ return ManifoldResult (code=ManifoldCode.SUCCESS, value=result)
+ except xmlrpclib.Fault, error:
+ ### xxx this is very rough for now
+ # until we have some agreement about how the API calls should return error conditions
+ # in some less unpolite way than this anoanymous exception, we assume it's a problem with the session
+ # that needs to be refreshed
+ if debug: print "Session Expired"
+ if error.faultCode == 8002:
+ reason="most likely your session has expired"
+ reason += " (the manifold API has no unambiguous error reporting mechanism yet)"
+ return ManifoldResult (code=ManifoldCode.SESSION_EXPIRED, output=reason)
+ except Exception,error:
+ print "ManifoldAPI: unexpected exception",error
+ return ManifoldResult (code=ManifoldResult.UNKNOWN_ERROR, output="%s"%error)
+ return func
+
+ def send_manifold_query (self, query):
+ (action,subject)= (query.action,query.subject)
+ if action=='get':
+ # use self.Get rather than self.server.Get so we catch exceptions as per __getattr__
+ return self.Get(subject, query.filters, query.timestamp, query.fields)
+ if action=='update':
+ return self.Update(subject, query.filters, query.params, query.fields)
+ else:
+ warning="WARNING: ManifoldAPI.send_manifold_query: %s not implemented for now"%action
+ print warning
+ return ManifoldResult(code=ManifoldCode.NOT_IMPLEMENTED, output=warning)