dubbo_client/rpcerror.py

# coding=utf-8

"""
 Licensed to the Apache Software Foundation (ASF) under one or more
 contributor license agreements.  See the NOTICE file distributed with
 this work for additional information regarding copyright ownership.
 The ASF licenses this file to You under the Apache License, Version 2.0
 (the "License"); you may not use this file except in compliance with
 the License.  You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.

"""



dubbo_client_errors = {}


class DubboClientError(RuntimeError):
    code = None
    message = None
    data = None

    def __init__(self, message=None, data=None, code=None):
        RuntimeError.__init__(self)
        self.message = message or self.message
        self.data = data
        self.code = code or self.code
        assert self.code, "Error without code is not allowed."

    def __str__(self):
        return "DubboError({code}): {message}".format(
            code=self.code,
            message=str(self.message)
        )

    def __unicode__(self):
        return u"DubboClientError({code}): {message}".format(
            code=self.code,
            message=self.message
        )


class MethodNotFound(DubboClientError):
    code = -32601
    message = u"The method does not exist / is not available."

    def __init__(self, message=None, data=None):
        DubboClientError.__init__(self, message=message, data=data)


class ConnectionFail(DubboClientError):
    code = 504
    message = u'connect failed {0}'

    def __init__(self, message=None, data=None):
        message = self.message.format(data)
        DubboClientError.__init__(self, message=message, data=data)


class NoProvider(DubboClientError):
    code = 5050
    message = u'No provide name {0}'
    provide_name = u''

    def __init__(self, message=None, data=None):
        self.provide_name = data
        DubboClientError.__init__(self, message=self.message.format(data), data=data)


class InvalidParams(DubboClientError):
    code = -32602
    message = u"Invalid method parameter(s)."

    def __init__(self, message=None, data=None):
        DubboClientError.__init__(self, message=message, data=data)


class InternalError(DubboClientError):
    code = -32603
    message = u"Internal JSON-RPC error."

    def __init__(self, message=None, data=None):
        DubboClientError.__init__(self, message=message, data=data)


class InvalidRequest(DubboClientError):
    code = -32600
    message = u"The JSON sent is not a valid Request object."

    def __init__(self, message=None, data=None):
        DubboClientError.__init__(self, message=message, data=data)


class UserDefinedError(DubboClientError):
    code = -32000
    message = u'User defined error happend'

    def __init__(self, message=None, data=None):
        DubboClientError.__init__(self, message=message, data=data)


dubbo_client_errors[MethodNotFound.code] = MethodNotFound
dubbo_client_errors[NoProvider.code] = NoProvider
dubbo_client_errors[ConnectionFail.code] = ConnectionFail
dubbo_client_errors[InvalidParams.code] = InvalidParams
dubbo_client_errors[InternalError.code] = InternalError
dubbo_client_errors[InvalidRequest.code] = InvalidRequest
dubbo_client_errors[UserDefinedError.code] = UserDefinedError