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authorUlas Kozat <ulas.kozat@gmail.com>2016-05-15 21:31:15 -0700
committerUlas Kozat <ulas.kozat@gmail.com>2016-05-15 21:43:21 -0700
commit7893dd02c15f2a727eb50887c9ddb829fc71f556 (patch)
tree54efcdadfda729ec4301537d264f6ea4298716e9 /lib/thrift/Thrift.py
parent06f85217ae3d5c9b429bad94827caed0641cd120 (diff)
Simple mapper/scheduler/partitioner functions implemented
Change-Id: I553b196943022451d8dc4984fe37b2b228c8f4cf Signed-off-by: Ulas C. Kozat <ulas.kozat@huawei.com>
Diffstat (limited to 'lib/thrift/Thrift.py')
-rw-r--r--lib/thrift/Thrift.py170
1 files changed, 170 insertions, 0 deletions
diff --git a/lib/thrift/Thrift.py b/lib/thrift/Thrift.py
new file mode 100644
index 0000000..9890af7
--- /dev/null
+++ b/lib/thrift/Thrift.py
@@ -0,0 +1,170 @@
+#
+# 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:
+ 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:
+ CALL = 1
+ REPLY = 2
+ EXCEPTION = 3
+ ONEWAY = 4
+
+
+class TProcessor:
+ """Base class for procsessor, which works on two streams."""
+
+ def process(iprot, oprot):
+ 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()