from myslice.config import Config
+from manifoldresult import ManifoldResult, ManifoldCode
+
+debug=False
debug=True
class ManifoldAPI:
- 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
+ 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)
+ ### attempt to cope with old APIs and new APIs
+ if isinstance (result, dict) and 'code' in result:
+ # this sounds like a result from a new API, leave it untouched
+ # XXX jordan : we need to wrap it into a ResultValue structure
+ # XXX this is not good until we merge both repos
+ if result['code'] != 2:
+ return ManifoldResult(code=result['code'], value=result['result'])
+ else:
+ return ManifoldResult(code=result['code'], output=result['description'])
+ else:
+ if debug:
+ print '<=== backend call', methodName, args, kwds
+ print '.... ctd', 'Authmethod=',self.auth['AuthMethod'], 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 anonymous exception, we assume it's a problem with the session
+ # that needs to be refreshed
+ 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)
+ else:
+ reason="xmlrpclib.Fault with faultCode = %s (not taken as session expired)"%error.faultCode
+ return ManifoldResult (code=ManifoldCode.UNKNOWN_ERROR, output=reason)
+ except Exception,error:
+ print "ManifoldAPI: unexpected exception",error
+ return ManifoldResult (code=ManifoldCode.UNKNOWN_ERROR, output="%s"%error)
+ return func
+
+ def send_manifold_query (self, query):
+ # We use a dictionary representation of the query for forwarding it to the API
+ ret = self.forward(query.to_dict())
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"
-
+ print "="*80
+ print "Result:"
+ print ret
+ print "="*80
+ return ret
+
+#old# (action,subject)= (query.action,query.subject)
+#old# # use e.g. self.Get rather than self.server.Get so we use the __getattr__ code
+#old# if action=='get':
+#old## this makes the backend to squeak and one can't login anymore...
+#old## return self.Get(subject, query.filters, query.timestamp, query.fields)
+#old# return self.Get(subject, query.filters, {}, query.fields)
+#old# elif action=='update':
+#old# answer=self.Update(subject, query.filters, query.params, query.fields)
+#old# if not isinstance (answer, ManifoldResult): print "UNEXECPECTED answer", answer
+#old# return answer
+#old# else:
+#old# warning="WARNING: ManifoldAPI.send_manifold_query: %s not implemented for now"%action
+#old# print warning
+#old# print 3
+#old# return ManifoldResult(code=ManifoldCode.NOT_IMPLEMENTED, output=warning)
git://git.onelab.eu / myslice.git / blobdiff