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#!/usr/bin/env python
##
# 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
#
# https://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 __future__ import absolute_import, division, print_function
import avro.ipc
import avro.protocol
try:
import BaseHTTPServer as http_server # type: ignore
except ImportError:
import http.server as http_server # type: ignore
MAIL_PROTOCOL_JSON = """\
{"namespace": "example.proto",
"protocol": "Mail",
"types": [
{"name": "Message", "type": "record",
"fields": [
{"name": "to", "type": "string"},
{"name": "from", "type": "string"},
{"name": "body", "type": "string"}
]
}
],
"messages": {
"send": {
"request": [{"name": "message", "type": "Message"}],
"response": "string"
},
"replay": {
"request": [],
"response": "string"
}
}
}
"""
MAIL_PROTOCOL = avro.protocol.parse(MAIL_PROTOCOL_JSON)
SERVER_ADDRESS = ('localhost', 9090)
class MailResponder(avro.ipc.Responder):
def __init__(self):
avro.ipc.Responder.__init__(self, MAIL_PROTOCOL)
def invoke(self, message, request):
if message.name == 'send':
request_content = request['message']
response = "Sent message to %(to)s from %(from)s with body %(body)s" % \
request_content
return response
elif message.name == 'replay':
return 'replay'
class MailHandler(http_server.BaseHTTPRequestHandler):
def do_POST(self):
self.responder = MailResponder()
call_request_reader = avro.ipc.FramedReader(self.rfile)
call_request = call_request_reader.read_framed_message()
resp_body = self.responder.respond(call_request)
self.send_response(200)
self.send_header('Content-Type', 'avro/binary')
self.end_headers()
resp_writer = avro.ipc.FramedWriter(self.wfile)
resp_writer.write_framed_message(resp_body)
if __name__ == '__main__':
mail_server = http_server.HTTPServer(SERVER_ADDRESS, MailHandler)
mail_server.allow_reuse_address = True
mail_server.serve_forever()
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