Re: [Exist-open] python problxm with exist and xmlrpc

[Bryan L. <b.n...@rl...>]

I've just solved this ...

Although a much later copy of exist (1.0-dev-20060316)  fails with the same 
error message ... it turns out that simply wrapping the xquery using the 
xmlrpclib.Binary() formalism fixes it. (Yes, I know I'd done it right for one 
method, but I forgot to do it for this one ...)

Cheers
Bryan


On Monday 03 July 2006 21:37, Bryan Lawrence wrote:
> Hi Folks
>
> I'm using 1.0-dev-20050805 (we can't quite upgrade yet because of worries
> about changes to the soap interface, although this isn't about a problem
> with that ...).
>
> Anyway, I've built a piece of code around the example on the wiki (cut back
> etc). I have:
>
> class  eXist_Connector(object):
>     """Access class for eXist"""
>     def __init__(self,constants=None):
>         ''' Instantiates the eXist connector using supplied constants '''
>         if constants is None: raise 'NoExistConstants'
>         authinfo = urllib2.HTTPPasswordMgrWithDefaultRealm()
>         authinfo.add_password(None,
>                                   constants.host,
>                                   constants.userid,
>                                   constants.password)
>         authHandler = urllib2.HTTPBasicAuthHandler(authinfo)
>         opener = urllib2.build_opener(authHandler)
>         s = constants.userid+':'+constants.password
>         z = base64.encodestring(s)[:-1] # strip trailing 12
>         opener.addheaders.append(('Authorization', 'Basic %s' % z))
>         self.http_headers = {'Authorization':'Basic %s' % z}
>         self.opener = opener
>         # also create an xmlrpc Server object
>
>         xmlrpc_uri = '%s%s:%s@%s:%d%s' % (
>                                             'http://',
>                                             constants.userid,
>                                             constants.password,
>                                             constants.host,
>                                             constants.port,
>                                             constants.xmlrpc_base_path
>                                         )
>         self.xmlrpc = xmlrpclib.Server(xmlrpc_uri)
>
>     def executeQuery(self, xquery, params={}):
>         '''Execute an xquery string, return session and summary
> information''' xquery=xmlrpclib.Binary(xquery)
>         id = self.xmlrpc.executeQuery(xquery, params)
>         summary = self.xmlrpc.querySummary(id)
>         return id,summary
>
>     def release(self,id):
>         ''' Release an executeQuery session '''
>         self.xmlrpc.releaseQueryResult(id)
>
>     def retrieve(self,id,pos,params={}):
>         ''' Retrieve a specific document from an executeQuery result set
> ''' return self.xmlrpc.retrieve(id,pos,params).data
>
>     def executeChunkedQuery(self,query,start,number,params={}):
>         ''' Execute a query, return a specific part of the result set, and
>         dump the session automagically '''
>         r=self.xmlrpc.query(query,number,start,params)
>         return r
>
> And all the methods work except the last which crashes when called with
> returns
>   File "eXistInterface.py", line 58, in executeChunkedQuery
>     r=self.xmlrpc.query(query,number,start,params)
>   File "/usr/lib/python2.4/xmlrpclib.py", line 1096, in __call__
>     return self.__send(self.__name, args)
>   File "/usr/lib/python2.4/xmlrpclib.py", line 1383, in __request
>     verbose=self.__verbose
>   File "/usr/lib/python2.4/xmlrpclib.py", line 1147, in request
>     return self._parse_response(h.getfile(), sock)
>   File "/usr/lib/python2.4/xmlrpclib.py", line 1286, in _parse_response
>     return u.close()
>   File "/usr/lib/python2.4/xmlrpclib.py", line 744, in close
>     raise Fault(**self._stack[0])
> xmlrpclib.Fault: <Fault 0: 'java.lang.NoSuchMethodException:
> org.exist.xmlrpc.RpcAPI.query(org.exist.security.User, java.lang.String)'>
>
> Which implies the method doesn't exist (although it does in the docs for
> this version ...)
>
> Any ideas? Which piece of basic stupidity am I exhibiting?
>
> Bryan
>
> Using Tomcat but need to do more? Need to support web services, security?
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> Geronimo
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
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