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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.
*/
package thrift
import ()
/**
* A nonblocking TServer implementation. This allows for fairness amongst all
* connected clients in terms of invocations.
*
* This server is inherently single-threaded. If you want a limited thread pool
* coupled with invocation-fairness, see THsHaServer.
*
* To use this server, you MUST use a TFramedTransport at the outermost
* transport, otherwise this server will be unable to determine when a whole
* method call has been read off the wire. Clients must also use TFramedTransport.
*/
type TNonblockingServer struct {
/** Flag for stopping the server */
stopped bool
processorFactory TProcessorFactory
serverTransport TServerTransport
inputTransportFactory TTransportFactory
outputTransportFactory TTransportFactory
inputProtocolFactory TProtocolFactory
outputProtocolFactory TProtocolFactory
}
func NewTNonblockingServer2(processor TProcessor, serverTransport TServerTransport) *TNonblockingServer {
return NewTNonblockingServerFactory2(NewTProcessorFactory(processor), serverTransport)
}
func NewTNonblockingServer4(processor TProcessor, serverTransport TServerTransport, transportFactory TTransportFactory, protocolFactory TProtocolFactory) *TNonblockingServer {
return NewTNonblockingServerFactory4(NewTProcessorFactory(processor),
serverTransport,
transportFactory,
protocolFactory,
)
}
func NewTNonblockingServer6(processor TProcessor, serverTransport TServerTransport, inputTransportFactory TTransportFactory, outputTransportFactory TTransportFactory, inputProtocolFactory TProtocolFactory, outputProtocolFactory TProtocolFactory) *TNonblockingServer {
return NewTNonblockingServerFactory6(NewTProcessorFactory(processor),
serverTransport,
inputTransportFactory,
outputTransportFactory,
inputProtocolFactory,
outputProtocolFactory,
)
}
func NewTNonblockingServerFactory2(processorFactory TProcessorFactory, serverTransport TServerTransport) *TNonblockingServer {
return NewTNonblockingServerFactory6(processorFactory,
serverTransport,
NewTTransportFactory(),
NewTTransportFactory(),
NewTBinaryProtocolFactoryDefault(),
NewTBinaryProtocolFactoryDefault(),
)
}
func NewTNonblockingServerFactory4(processorFactory TProcessorFactory, serverTransport TServerTransport, transportFactory TTransportFactory, protocolFactory TProtocolFactory) *TNonblockingServer {
return NewTNonblockingServerFactory6(processorFactory,
serverTransport,
transportFactory,
transportFactory,
protocolFactory,
protocolFactory,
)
}
func NewTNonblockingServerFactory6(processorFactory TProcessorFactory, serverTransport TServerTransport, inputTransportFactory TTransportFactory, outputTransportFactory TTransportFactory, inputProtocolFactory TProtocolFactory, outputProtocolFactory TProtocolFactory) *TNonblockingServer {
return &TNonblockingServer{processorFactory: processorFactory,
serverTransport: serverTransport,
inputTransportFactory: inputTransportFactory,
outputTransportFactory: outputTransportFactory,
inputProtocolFactory: inputProtocolFactory,
outputProtocolFactory: outputProtocolFactory,
}
}
func (p *TNonblockingServer) ProcessorFactory() TProcessorFactory {
return p.processorFactory
}
func (p *TNonblockingServer) ServerTransport() TServerTransport {
return p.serverTransport
}
func (p *TNonblockingServer) InputTransportFactory() TTransportFactory {
return p.inputTransportFactory
}
func (p *TNonblockingServer) OutputTransportFactory() TTransportFactory {
return p.outputTransportFactory
}
func (p *TNonblockingServer) InputProtocolFactory() TProtocolFactory {
return p.inputProtocolFactory
}
func (p *TNonblockingServer) OutputProtocolFactory() TProtocolFactory {
return p.outputProtocolFactory
}
func (p *TNonblockingServer) Serve() error {
p.stopped = false
err := p.serverTransport.Listen()
if err != nil {
return err
}
for !p.stopped {
client, err := p.serverTransport.Accept()
if err != nil {
return err
}
if client != nil {
go p.processRequest(client)
}
}
return nil
}
func (p *TNonblockingServer) Stop() error {
p.stopped = true
p.serverTransport.Interrupt()
return nil
}
func (p *TNonblockingServer) IsStopped() bool {
return p.stopped
}
func (p *TNonblockingServer) processRequest(client TTransport) {
processor := p.processorFactory.GetProcessor(client)
inputTransport := p.inputTransportFactory.GetTransport(client)
outputTransport := p.outputTransportFactory.GetTransport(client)
inputProtocol := p.inputProtocolFactory.GetProtocol(inputTransport)
outputProtocol := p.outputProtocolFactory.GetProtocol(outputTransport)
if inputTransport != nil {
defer inputTransport.Close()
}
if outputTransport != nil {
defer outputTransport.Close()
}
for {
ok, e := processor.Process(inputProtocol, outputProtocol)
if e != nil {
if !p.stopped {
// TODO(pomack) log error
break
}
}
if !ok {
break
}
}
}
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