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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.
using System;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.Extensions.Logging;
using Thrift.Protocol;
using Thrift.Transport;
using Thrift.Processor;
namespace Thrift.Server
{
// ReSharper disable once InconsistentNaming
public abstract class TServer
{
protected readonly ILogger Logger;
protected TProtocolFactory InputProtocolFactory;
protected TTransportFactory InputTransportFactory;
protected ITProcessorFactory ProcessorFactory;
protected TProtocolFactory OutputProtocolFactory;
protected TTransportFactory OutputTransportFactory;
protected ITServerEventHandler ServerEventHandler;
protected TServerTransport ServerTransport;
protected TServer(ITProcessorFactory processorFactory, TServerTransport serverTransport,
TTransportFactory inputTransportFactory, TTransportFactory outputTransportFactory,
TProtocolFactory inputProtocolFactory, TProtocolFactory outputProtocolFactory,
ILogger logger = null)
{
ProcessorFactory = processorFactory ?? throw new ArgumentNullException(nameof(processorFactory));
ServerTransport = serverTransport;
InputTransportFactory = inputTransportFactory ?? new TTransportFactory();
OutputTransportFactory = outputTransportFactory ?? new TTransportFactory();
InputProtocolFactory = inputProtocolFactory ?? throw new ArgumentNullException(nameof(inputProtocolFactory));
OutputProtocolFactory = outputProtocolFactory ?? throw new ArgumentNullException(nameof(outputProtocolFactory));
Logger = logger; // null is absolutely legal
}
public void SetEventHandler(ITServerEventHandler seh)
{
ServerEventHandler = seh;
}
public ITServerEventHandler GetEventHandler()
{
return ServerEventHandler;
}
// Log delegation? deprecated, use ILogger
protected void LogError( string msg)
{
Logger?.LogError("{Msg}",msg); // NOTE: Log message template, not string interpolation!
}
public abstract void Stop();
public virtual void Start()
{
// do nothing
}
public virtual Task ServeAsync(CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
return Task.CompletedTask;
}
}
}
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