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--
-- 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.
--
require 'Thrift'
require 'TFramedTransport'
require 'TBinaryProtocol'
-- TServer
TServer = __TObject:new{
__type = 'TServer'
}
-- 2 possible constructors
-- 1. {processor, serverTransport}
-- 2. {processor, serverTransport, transportFactory, protocolFactory}
function TServer:new(args)
if ttype(args) ~= 'table' then
error('TServer must be initialized with a table')
end
if args.processor == nil then
terror('You must provide ' .. ttype(self) .. ' with a processor')
end
if args.serverTransport == nil then
terror('You must provide ' .. ttype(self) .. ' with a serverTransport')
end
-- Create the object
local obj = __TObject.new(self, args)
if obj.transportFactory then
obj.inputTransportFactory = obj.transportFactory
obj.outputTransportFactory = obj.transportFactory
obj.transportFactory = nil
else
obj.inputTransportFactory = TFramedTransportFactory:new{}
obj.outputTransportFactory = obj.inputTransportFactory
end
if obj.protocolFactory then
obj.inputProtocolFactory = obj.protocolFactory
obj.outputProtocolFactory = obj.protocolFactory
obj.protocolFactory = nil
else
obj.inputProtocolFactory = TBinaryProtocolFactory:new{}
obj.outputProtocolFactory = obj.inputProtocolFactory
end
-- Set the __server variable in the handler so we can stop the server
obj.processor.handler.__server = self
return obj
end
function TServer:setServerEventHandler(handler)
self.serverEventHandler = handler
end
function TServer:_clientBegin(content, iprot, oprot)
if self.serverEventHandler and
type(self.serverEventHandler.clientBegin) == 'function' then
self.serverEventHandler:clientBegin(iprot, oprot)
end
end
function TServer:_preServe()
if self.serverEventHandler and
type(self.serverEventHandler.preServe) == 'function' then
self.serverEventHandler:preServe(self.serverTransport:getSocketInfo())
end
end
function TServer:setExceptionHandler(exceptionHandler)
self.exceptionHandler = exceptionHandler
end
function TServer:_handleException(err)
if string.find(err, 'TTransportException') == nil then
if self.exceptionHandler then
self.exceptionHandler(err)
else
print(err)
end
end
end
function TServer:serve() end
function TServer:handle(client)
local itrans, otrans =
self.inputTransportFactory:getTransport(client),
self.outputTransportFactory:getTransport(client)
local iprot, oprot =
self.inputProtocolFactory:getProtocol(itrans),
self.outputProtocolFactory:getProtocol(otrans)
self:_clientBegin(iprot, oprot)
while true do
local ret, err = pcall(self.processor.process, self.processor, iprot, oprot)
if ret == false and err then
if not string.find(err, "TTransportException") then
self:_handleException(err)
end
break
end
end
itrans:close()
otrans:close()
end
function TServer:close()
self.serverTransport:close()
end
-- TSimpleServer
-- Single threaded server that handles one transport (connection)
TSimpleServer = __TObject:new(TServer, {
__type = 'TSimpleServer',
__stop = false
})
function TSimpleServer:serve()
self.serverTransport:listen()
self:_preServe()
while not self.__stop do
client = self.serverTransport:accept()
self:handle(client)
end
self:close()
end
function TSimpleServer:stop()
self.__stop = true
end
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