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package cicada.thrift.server;

import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import org.apache.thrift.TProcessor;
import org.apache.thrift.protocol.TCompactProtocol;
import org.apache.thrift.server.TServer;
import org.apache.thrift.server.TThreadPoolServer;
import org.apache.thrift.transport.TServerSocket;
import org.apache.thrift.transport.TTransportException;
import org.apache.thrift.transport.TTransportFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.config.ConfigurableBeanFactory;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;

import cicada.core.BeanFactory;
import cicada.thrift.zookeeper.ConnectionFailProcessMode;
import cicada.thrift.zookeeper.ServicePublisher;

@Component
@Scope(ConfigurableBeanFactory.SCOPE_PROTOTYPE)
public class RpcServerImpl implements RpcServer, DisposableBean
{
	private static final int ClientTimeoutDefault = 300000;

	private static final int MinThreadsDefault = 10;

	private static final int MaxThreadsDefault = 10000;

	private ServerConfiguration _serverConfiguration;

	private ServicePublisher _servicePublisher;

	private static final Logger log = LoggerFactory.getLogger(RpcServerImpl.class);

	private boolean _published;

	private TServer _server;

	public RpcServerImpl(ServerConfiguration serverConfiguration, ServicePublisher servicePublisher)
	{
		this._serverConfiguration = serverConfiguration;
		this._servicePublisher = servicePublisher;
		String respositoryServer = _serverConfiguration.getPublishRespositoryServer();
		ConnectionFailProcessMode connectionFailProcessMode = _serverConfiguration.getConnectionFailProcessMode();
		String publishName = _serverConfiguration.getPublishName();
		String publishServer = _serverConfiguration.getPublishServer();
		int port = _serverConfiguration.getPort();
		_servicePublisher.Init(respositoryServer, connectionFailProcessMode, publishName, publishServer + ":" + port);
	}

	@Override
	public  void run(Class classzz)
	{
		if (!classzz.isInterface() || classzz == null)
		{
			log.info("{}不是接口", classzz.getName());
			return;
		}

		String processorName = classzz.getName().replace("Iface", "") + "Processor";

		ThriftSevice runPrivateRunnable = new ThriftSevice(processorName, classzz);
		Thread privateRunable = new Thread(runPrivateRunnable);
		privateRunable.start();

		PublishRunable publishRunable = new PublishRunable();
		Thread threadPublish = new Thread(publishRunable);
		threadPublish.start();
	}

	public class PublishRunable implements Runnable
	{
		@Override
		public void run()
		{
			if (_serverConfiguration.getPublishRespositoryServer() == null || _serverConfiguration.getPublishRespositoryServer().isEmpty())
			{
				return;
			}
			_published = true;
			try
			{
				Thread.sleep(5000);
				_servicePublisher.publish();
			}
			catch (InterruptedException e)
			{
				String mString = String.format("rpc 发布服务出错:%s", e.getMessage());
				log.error(mString, e);
			}
		}
	}

	public class ThriftSevice implements Runnable
	{
		private String _processorName;
		private Class _classzz;

		public ThriftSevice(String processorName, Class classzz)
		{
			_processorName = processorName;
			_classzz = classzz;
		}

		@Override
		public void run()
		{
			try
			{
				Class classProcess = Class.forName(_processorName);
				T iface = BeanFactory.getBeanByType(_classzz);
				Constructor constructor = classProcess.getConstructor(_classzz);
				TProcessor tprocessor = (TProcessor) constructor.newInstance(iface);
				TServerSocket serverTransport = new TServerSocket(_serverConfiguration.getPort(), ClientTimeoutDefault);
				TThreadPoolServer.Args tArgs = new TThreadPoolServer.Args(serverTransport);
				tArgs.processor(tprocessor);
				tArgs.protocolFactory(new TCompactProtocol.Factory());
				tArgs.maxWorkerThreads = MaxThreadsDefault;
				tArgs.minWorkerThreads = MinThreadsDefault;
				tArgs.inputTransportFactory(new TTransportFactory());
				tArgs.outputTransportFactory(new TTransportFactory());
				_server = new TThreadPoolServer(tArgs);
				_server.serve();
			}
			catch (ClassNotFoundException e)
			{
				log.info("没有发现将要向外公开的服务接口,请确保您用的是Thrift生成的服务接口");
			}
			catch (TTransportException e)
			{
				e.printStackTrace();
			}
			catch (InstantiationException | IllegalAccessException e)
			{
				e.printStackTrace();
			}
			catch (NoSuchMethodException e)
			{
				e.printStackTrace();
			}
			catch (SecurityException e)
			{
				e.printStackTrace();
			}
			catch (IllegalArgumentException e)
			{
				e.printStackTrace();
			}
			catch (InvocationTargetException e)
			{
				e.printStackTrace();
			}
		}
	}

	@Override
	public void close()
	{
		if (this._published)
		{
			this._servicePublisher.cancel();
		}

		if (this._server != null)
		{
			this._server.stop();
		}
	}

	@Override
	public void destroy() throws Exception
	{
		try
		{
			if (this._servicePublisher != null)
			{
				this._servicePublisher.destroy();
				this._servicePublisher = null;
			}
			if (this._server != null)
			{
				this._server.stop();
				this._server = null;
			}
		}
		catch (Throwable e)
		{
			log.error(e.getMessage(), e);
		}
	}
}