1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
|
#
# 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.
#
from TProtocol import *
from struct import pack, unpack
class TBinaryProtocol(TProtocolBase):
"""Binary implementation of the Thrift protocol driver."""
# NastyHaxx. Python 2.4+ on 32-bit machines forces hex constants to be
# positive, converting this into a long. If we hardcode the int value
# instead it'll stay in 32 bit-land.
# VERSION_MASK = 0xffff0000
VERSION_MASK = -65536
# VERSION_1 = 0x80010000
VERSION_1 = -2147418112
TYPE_MASK = 0x000000ff
def __init__(self, trans, strictRead=False, strictWrite=True):
TProtocolBase.__init__(self, trans)
self.strictRead = strictRead
self.strictWrite = strictWrite
def writeMessageBegin(self, name, type, seqid):
if self.strictWrite:
self.writeI32(TBinaryProtocol.VERSION_1 | type)
self.writeString(name)
self.writeI32(seqid)
else:
self.writeString(name)
self.writeByte(type)
self.writeI32(seqid)
def writeMessageEnd(self):
pass
def writeStructBegin(self, name):
pass
def writeStructEnd(self):
pass
def writeFieldBegin(self, name, type, id):
self.writeByte(type)
self.writeI16(id)
def writeFieldEnd(self):
pass
def writeFieldStop(self):
self.writeByte(TType.STOP)
def writeMapBegin(self, ktype, vtype, size):
self.writeByte(ktype)
self.writeByte(vtype)
self.writeI32(size)
def writeMapEnd(self):
pass
def writeListBegin(self, etype, size):
self.writeByte(etype)
self.writeI32(size)
def writeListEnd(self):
pass
def writeSetBegin(self, etype, size):
self.writeByte(etype)
self.writeI32(size)
def writeSetEnd(self):
pass
def writeBool(self, bool):
if bool:
self.writeByte(1)
else:
self.writeByte(0)
def writeByte(self, byte):
buff = pack("!b", byte)
self.trans.write(buff)
def writeI16(self, i16):
buff = pack("!h", i16)
self.trans.write(buff)
def writeI32(self, i32):
buff = pack("!i", i32)
self.trans.write(buff)
def writeI64(self, i64):
buff = pack("!q", i64)
self.trans.write(buff)
def writeDouble(self, dub):
buff = pack("!d", dub)
self.trans.write(buff)
def writeString(self, str):
self.writeI32(len(str))
self.trans.write(str)
def readMessageBegin(self):
sz = self.readI32()
if sz < 0:
version = sz & TBinaryProtocol.VERSION_MASK
if version != TBinaryProtocol.VERSION_1:
raise TProtocolException(
type=TProtocolException.BAD_VERSION,
message='Bad version in readMessageBegin: %d' % (sz))
type = sz & TBinaryProtocol.TYPE_MASK
name = self.readString()
seqid = self.readI32()
else:
if self.strictRead:
raise TProtocolException(type=TProtocolException.BAD_VERSION,
message='No protocol version header')
name = self.trans.readAll(sz)
type = self.readByte()
seqid = self.readI32()
return (name, type, seqid)
def readMessageEnd(self):
pass
def readStructBegin(self):
pass
def readStructEnd(self):
pass
def readFieldBegin(self):
type = self.readByte()
if type == TType.STOP:
return (None, type, 0)
id = self.readI16()
return (None, type, id)
def readFieldEnd(self):
pass
def readMapBegin(self):
ktype = self.readByte()
vtype = self.readByte()
size = self.readI32()
return (ktype, vtype, size)
def readMapEnd(self):
pass
def readListBegin(self):
etype = self.readByte()
size = self.readI32()
return (etype, size)
def readListEnd(self):
pass
def readSetBegin(self):
etype = self.readByte()
size = self.readI32()
return (etype, size)
def readSetEnd(self):
pass
def readBool(self):
byte = self.readByte()
if byte == 0:
return False
return True
def readByte(self):
buff = self.trans.readAll(1)
val, = unpack('!b', buff)
return val
def readI16(self):
buff = self.trans.readAll(2)
val, = unpack('!h', buff)
return val
def readI32(self):
buff = self.trans.readAll(4)
val, = unpack('!i', buff)
return val
def readI64(self):
buff = self.trans.readAll(8)
val, = unpack('!q', buff)
return val
def readDouble(self):
buff = self.trans.readAll(8)
val, = unpack('!d', buff)
return val
def readString(self):
len = self.readI32()
str = self.trans.readAll(len)
return str
class TBinaryProtocolFactory:
def __init__(self, strictRead=False, strictWrite=True):
self.strictRead = strictRead
self.strictWrite = strictWrite
def getProtocol(self, trans):
prot = TBinaryProtocol(trans, self.strictRead, self.strictWrite)
return prot
class TBinaryProtocolAccelerated(TBinaryProtocol):
"""C-Accelerated version of TBinaryProtocol.
This class does not override any of TBinaryProtocol's methods,
but the generated code recognizes it directly and will call into
our C module to do the encoding, bypassing this object entirely.
We inherit from TBinaryProtocol so that the normal TBinaryProtocol
encoding can happen if the fastbinary module doesn't work for some
reason. (TODO(dreiss): Make this happen sanely in more cases.)
In order to take advantage of the C module, just use
TBinaryProtocolAccelerated instead of TBinaryProtocol.
NOTE: This code was contributed by an external developer.
The internal Thrift team has reviewed and tested it,
but we cannot guarantee that it is production-ready.
Please feel free to report bugs and/or success stories
to the public mailing list.
"""
pass
class TBinaryProtocolAcceleratedFactory:
def getProtocol(self, trans):
return TBinaryProtocolAccelerated(trans)
|
