THRIFT-812. contrib: Add a demo of using Thrift over ZeroMQ
git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@991260 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/contrib/zeromq/TZmqClient.py b/contrib/zeromq/TZmqClient.py
new file mode 100644
index 0000000..d560697
--- /dev/null
+++ b/contrib/zeromq/TZmqClient.py
@@ -0,0 +1,63 @@
+#
+# 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 zmq
+from cStringIO import StringIO
+from thrift.transport.TTransport import TTransportBase, CReadableTransport
+
+class TZmqClient(TTransportBase, CReadableTransport):
+ def __init__(self, ctx, endpoint, sock_type):
+ self._sock = ctx.socket(sock_type)
+ self._endpoint = endpoint
+ self._wbuf = StringIO()
+ self._rbuf = StringIO()
+
+ def open(self):
+ self._sock.connect(self._endpoint)
+
+ def read(self, size):
+ ret = self._rbuf.read(size)
+ if len(ret) != 0:
+ return ret
+ self._read_message()
+ return self._rbuf.read(size)
+
+ def _read_message(self):
+ msg = self._sock.recv()
+ self._rbuf = StringIO(msg)
+
+ def write(self, buf):
+ self._wbuf.write(buf)
+
+ def flush(self):
+ msg = self._wbuf.getvalue()
+ self._wbuf = StringIO()
+ self._sock.send(msg)
+
+ # Implement the CReadableTransport interface.
+ @property
+ def cstringio_buf(self):
+ return self._rbuf
+
+ # NOTE: This will probably not actually work.
+ def cstringio_refill(self, prefix, reqlen):
+ while len(prefix) < reqlen:
+ self.read_message()
+ prefix += self._rbuf.getvalue()
+ self._rbuf = StringIO(prefix)
+ return self._rbuf