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########################################################################
# $Header: /var/local/cvsroot/4Suite/Ft/Server/FtRpc/Responses.py,v 1.7 2005/03/22 09:58:58 mbrown Exp $
"""
RPC server protocol responses
Copyright 2005 Fourthought, Inc. (USA).
Detailed license and copyright information: http://4suite.org/COPYRIGHT
Project home, documentation, distributions: http://4suite.org/
"""
import Marshal
from Ft.Server.FtRpc import ResponseCodes
class FtRpcResponse:
def __init__(self):
pass
def send(self, connection):
Marshal.Send(connection, self.response, self.data)
return
class GeneralErrorResponse(FtRpcResponse):
"""
This response class represents an unknown error condition.
It is returned when ever a unknown exception occurs on the server
"""
response = ResponseCodes.GENERAL_ERROR
def __init__(self, error, traceback):
self.msg = str(error)
self.traceback = traceback
self.data = {'msg': self.msg,
'traceback': traceback,
'params': error.args,
}
return
class FtServerErrorResponse(FtRpcResponse):
"""
A specific Ft Server exception occurred
"""
response = ResponseCodes.FTSERVER_ERROR
def __init__(self, error):
self.error = str(error)
self.data = {'error': str(error),
'params': error.params, # computed
}
# Add code, params, message from FtServerServerException instance to
# the returned data. We really only need the code.
self.data.update(vars(error))
return
class OkResponse(FtRpcResponse):
"""
Simple Acknowledge
"""
response = ResponseCodes.OK
data={}
pass
class ResourceTypeResponse(FtRpcResponse):
"""
Return the Resource type of an object
"""
response = ResponseCodes.RESOURCE_TYPE
def __init__(self, path, resourceType):
self.path = path
self.resourceType = resourceType
self.data={'path': path,
'resourceType': resourceType}
class MethodResultsResponse(FtRpcResponse):
"""
The results of invoking a method
"""
response = ResponseCodes.METHOD_RESULTS
def __init__(self, path, results):
self.path = path
self.results = results
self.data={'path': path,
'results': results}
class RdfResultsResponse(FtRpcResponse):
"""
The results of invoking a method on the model
"""
response = ResponseCodes.RDF_RESULTS
def __init__(self, path, results):
self.path = path
self.results = results
self.data={'path': path,
'results': results}
g_responseMapping = {ResponseCodes.OK: OkResponse,
ResponseCodes.GENERAL_ERROR: GeneralErrorResponse,
ResponseCodes.RESOURCE_TYPE: ResourceTypeResponse,
ResponseCodes.METHOD_RESULTS: MethodResultsResponse,
ResponseCodes.RDF_RESULTS: RdfResultsResponse,
ResponseCodes.FTSERVER_ERROR: FtServerErrorResponse,
}
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