| #!/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() |