| Mark Slee | cde2b61 | 2006-09-03 21:13:07 +0000 | [diff] [blame] | 1 | from TProtocol import * |
| 2 | from struct import pack, unpack |
| 3 | |
| 4 | class TBinaryProtocol(TProtocolBase): |
| 5 | |
| 6 | """Binary implementation of the Thrift protocol driver.""" |
| 7 | |
| 8 | def writeMessageBegin(self, otrans, name, type, seqid): |
| 9 | self.writeString(otrans, name) |
| 10 | self.writeByte(otrans, type) |
| 11 | self.writeI32(otrans, seqid) |
| 12 | |
| 13 | def writeMessageEnd(self, otrans): |
| 14 | pass |
| 15 | |
| 16 | def writeStructBegin(self, otrans, name): |
| 17 | pass |
| 18 | |
| 19 | def writeStructEnd(self, otrans): |
| 20 | pass |
| 21 | |
| 22 | def writeFieldBegin(self, otrans, name, type, id): |
| 23 | self.writeByte(otrans, type) |
| 24 | self.writeI16(otrans, id) |
| 25 | |
| 26 | def writeFieldEnd(self, otrans): |
| 27 | pass |
| 28 | |
| 29 | def writeFieldStop(self, otrans): |
| 30 | self.writeByte(otrans, TType.STOP); |
| 31 | |
| 32 | def writeMapBegin(self, otrans, ktype, vtype, size): |
| 33 | self.writeByte(otrans, ktype) |
| 34 | self.writeByte(otrans, vtype) |
| 35 | self.writeI32(otrans, size) |
| 36 | |
| 37 | def writeMapEnd(self, otrans): |
| 38 | pass |
| 39 | |
| 40 | def writeListBegin(self, otrans, etype, size): |
| 41 | self.writeByte(otrans, etype) |
| 42 | self.writeI32(otrans, size) |
| 43 | |
| 44 | def writeListEnd(self, otrans): |
| 45 | pass |
| 46 | |
| 47 | def writeSetBegin(self, otrans, etype, size): |
| 48 | self.writeByte(otrans, etype) |
| 49 | self.writeI32(otrans, size) |
| 50 | |
| 51 | def writeSetEnd(self, otrans): |
| 52 | pass |
| 53 | |
| 54 | def writeBool(self, otrans, bool): |
| 55 | if bool: |
| 56 | self.writeByte(otrans, 1) |
| 57 | else: |
| 58 | self.writeByte(otrans, 0) |
| 59 | |
| 60 | def writeByte(self, otrans, byte): |
| 61 | buff = pack("!b", byte) |
| 62 | otrans.write(buff) |
| 63 | |
| 64 | def writeI16(self, otrans, i16): |
| 65 | buff = pack("!h", i16) |
| 66 | otrans.write(buff) |
| 67 | |
| 68 | def writeI32(self, otrans, i32): |
| 69 | buff = pack("!i", i32) |
| 70 | otrans.write(buff) |
| 71 | |
| 72 | def writeI64(self, otrans, i64): |
| Mark Slee | c967656 | 2006-09-05 17:34:52 +0000 | [diff] [blame^] | 73 | buff = pack("!q", i64) |
| Mark Slee | cde2b61 | 2006-09-03 21:13:07 +0000 | [diff] [blame] | 74 | otrans.write(buff) |
| 75 | |
| 76 | def writeString(self, otrans, str): |
| 77 | self.writeI32(otrans, len(str)) |
| 78 | otrans.write(str) |
| 79 | |
| 80 | def readMessageBegin(self, itrans): |
| 81 | name = self.readString(itrans) |
| 82 | type = self.readByte(itrans) |
| 83 | seqid = self.readI32(itrans) |
| 84 | return (name, type, seqid) |
| 85 | |
| 86 | def readMessageEnd(self, itrans): |
| 87 | pass |
| 88 | |
| 89 | def readStructBegin(self, itrans): |
| 90 | pass |
| 91 | |
| 92 | def readStructEnd(self, itrans): |
| 93 | pass |
| 94 | |
| 95 | def readFieldBegin(self, itrans): |
| 96 | type = self.readByte(itrans) |
| 97 | if type == TType.STOP: |
| 98 | return (None, type, 0) |
| 99 | id = self.readI16(itrans) |
| 100 | return (None, type, id) |
| 101 | |
| 102 | def readFieldEnd(self, itrans): |
| 103 | pass |
| 104 | |
| 105 | def readMapBegin(self, itrans): |
| 106 | ktype = self.readByte(itrans) |
| 107 | vtype = self.readByte(itrans) |
| 108 | size = self.readI32(itrans) |
| 109 | return (ktype, vtype, size) |
| 110 | |
| 111 | def readMapEnd(self, itrans): |
| 112 | pass |
| 113 | |
| 114 | def readListBegin(self, itrans): |
| 115 | etype = self.readByte(itrans) |
| 116 | size = self.readI32(itrans) |
| 117 | return (etype, size) |
| 118 | |
| 119 | def readListEnd(self, itrans): |
| 120 | pass |
| 121 | |
| 122 | def readSetBegin(self, itrans): |
| 123 | etype = self.readByte(itrans) |
| 124 | size = self.readI32(itrans) |
| 125 | return (etype, size) |
| 126 | |
| 127 | def readSetEnd(self, itrans): |
| 128 | pass |
| 129 | |
| 130 | def readBool(self, itrans): |
| 131 | byte = self.readByte(itrans) |
| 132 | if byte == 0: |
| 133 | return False |
| 134 | return True |
| 135 | |
| 136 | def readByte(self, itrans): |
| 137 | buff = itrans.readAll(1) |
| 138 | val, = unpack('!b', buff) |
| 139 | return val |
| 140 | |
| 141 | def readI16(self, itrans): |
| 142 | buff = itrans.readAll(2) |
| 143 | val, = unpack('!h', buff) |
| 144 | return val |
| 145 | |
| 146 | def readI32(self, itrans): |
| 147 | buff = itrans.readAll(4) |
| 148 | val, = unpack('!i', buff) |
| 149 | return val |
| 150 | |
| 151 | def readI64(self, itrans): |
| 152 | buff = itrans.readAll(8) |
| Mark Slee | c967656 | 2006-09-05 17:34:52 +0000 | [diff] [blame^] | 153 | val, = unpack('!q', buff) |
| Mark Slee | cde2b61 | 2006-09-03 21:13:07 +0000 | [diff] [blame] | 154 | return val |
| 155 | |
| 156 | def readString(self, itrans): |
| 157 | len = self.readI32(itrans) |
| 158 | str = itrans.readAll(len) |
| 159 | return str |