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#
# 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.
#
import sys
class TType(object):
STOP = 0
VOID = 1
BOOL = 2
BYTE = 3
I08 = 3
DOUBLE = 4
I16 = 6
I32 = 8
I64 = 10
STRING = 11
UTF7 = 11
STRUCT = 12
MAP = 13
SET = 14
LIST = 15
UTF8 = 16
UTF16 = 17
_VALUES_TO_NAMES = (
'STOP',
'VOID',
'BOOL',
'BYTE',
'DOUBLE',
None,
'I16',
None,
'I32',
None,
'I64',
'STRING',
'STRUCT',
'MAP',
'SET',
'LIST',
'UTF8',
'UTF16',
)
class TMessageType(object):
CALL = 1
REPLY = 2
EXCEPTION = 3
ONEWAY = 4
class TProcessor(object):
"""Base class for processor, which works on two streams."""
def process(self, iprot, oprot):
"""
Process a request. The normal behvaior is to have the
processor invoke the correct handler and then it is the
server's responsibility to write the response to oprot.
"""
pass
def on_message_begin(self, func):
"""
Install a callback that receives (name, type, seqid)
after the message header is read.
"""
pass
class TException(Exception):
"""Base class for all thrift exceptions."""
# BaseException.message is deprecated in Python v[2.6,3.0)
if (2, 6, 0) <= sys.version_info < (3, 0):
def _get_message(self):
return self._message
def _set_message(self, message):
self._message = message
message = property(_get_message, _set_message)
def __init__(self, message=None):
Exception.__init__(self, message)
self.message = message
class TApplicationException(TException):
"""Application level thrift exceptions."""
UNKNOWN = 0
UNKNOWN_METHOD = 1
INVALID_MESSAGE_TYPE = 2
WRONG_METHOD_NAME = 3
BAD_SEQUENCE_ID = 4
MISSING_RESULT = 5
INTERNAL_ERROR = 6
PROTOCOL_ERROR = 7
INVALID_TRANSFORM = 8
INVALID_PROTOCOL = 9
UNSUPPORTED_CLIENT_TYPE = 10
def __init__(self, type=UNKNOWN, message=None):
TException.__init__(self, message)
self.type = type
def __str__(self):
if self.message:
return self.message
elif self.type == self.UNKNOWN_METHOD:
return 'Unknown method'
elif self.type == self.INVALID_MESSAGE_TYPE:
return 'Invalid message type'
elif self.type == self.WRONG_METHOD_NAME:
return 'Wrong method name'
elif self.type == self.BAD_SEQUENCE_ID:
return 'Bad sequence ID'
elif self.type == self.MISSING_RESULT:
return 'Missing result'
elif self.type == self.INTERNAL_ERROR:
return 'Internal error'
elif self.type == self.PROTOCOL_ERROR:
return 'Protocol error'
elif self.type == self.INVALID_TRANSFORM:
return 'Invalid transform'
elif self.type == self.INVALID_PROTOCOL:
return 'Invalid protocol'
elif self.type == self.UNSUPPORTED_CLIENT_TYPE:
return 'Unsupported client type'
else:
return 'Default (unknown) TApplicationException'
def read(self, iprot):
iprot.readStructBegin()
while True:
(fname, ftype, fid) = iprot.readFieldBegin()
if ftype == TType.STOP:
break
if fid == 1:
if ftype == TType.STRING:
self.message = iprot.readString()
else:
iprot.skip(ftype)
elif fid == 2:
if ftype == TType.I32:
self.type = iprot.readI32()
else:
iprot.skip(ftype)
else:
iprot.skip(ftype)
iprot.readFieldEnd()
iprot.readStructEnd()
def write(self, oprot):
oprot.writeStructBegin('TApplicationException')
if self.message is not None:
oprot.writeFieldBegin('message', TType.STRING, 1)
oprot.writeString(self.message)
oprot.writeFieldEnd()
if self.type is not None:
oprot.writeFieldBegin('type', TType.I32, 2)
oprot.writeI32(self.type)
oprot.writeFieldEnd()
oprot.writeFieldStop()
oprot.writeStructEnd()
class TFrozenDict(dict):
"""A dictionary that is "frozen" like a frozenset"""
def __init__(self, *args, **kwargs):
super(TFrozenDict, self).__init__(*args, **kwargs)
# Sort the items so they will be in a consistent order.
# XOR in the hash of the class so we don't collide with
# the hash of a list of tuples.
self.__hashval = hash(TFrozenDict) ^ hash(tuple(sorted(self.items())))
def __setitem__(self, *args):
raise TypeError("Can't modify frozen TFreezableDict")
def __delitem__(self, *args):
raise TypeError("Can't modify frozen TFreezableDict")
def __hash__(self):
return self.__hashval