mina源码研究

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1、Mina源码研究作者唐延波日期2014-11-09目录1.NioSocketAcceptor初始化源码研究21.1初始化NioSocketAcceptor31.2SimpleIoProcessorPool初始化分析51.3NioProcessor的源码71.4总结72.NioSocketAcceptorbind方法源码研究72.1bind方法72.2bind方法9Mina版本为2.091.NioSocketAcceptor初始化源码研究初始化服务端acceptor的代码如下：IoAcceptor acceptor =

2、 new NioSocketAcceptor();那么它到底做了些什么呢，我们一起来看看源代码先贴出类图和类调用时序图，给大家看个大概：1.1类图1.1方法调用时序图1.2初始化NioSocketAcceptor调用构造方法代码如下：NioSocketAcceptor类publicNioSocketAcceptor(){super(newDefaultSocketSessionConfig(),NioProcessor.class);((DefaultSocketSessionConfig)getSessionCon

3、fig()).init(this);}注意参数NioProcessor.class，这将是后面processor池中对象的具体类型继续调用父类AbstractPollingIoAcceptor的构造方法代码编号1.2：protectedAbstractPollingIoAcceptor(IoSessionConfigsessionConfig,Class>processorClass){this(sessionConfig,null,newSimpleIoProcesso

4、rPool(processorClass),true,null);}注意传参newSimpleIoProcessorPool(processorClass)，processorClass实际是NioProcessor.class然后继续privateAbstractPollingIoAcceptor(IoSessionConfigsessionConfig,Executorexecutor,IoProcessorprocessor,booleancreatedProcessor,SelectorPr

5、oviderselectorProvider){super(sessionConfig,executor);if(processor==null){thrownewIllegalArgumentException("processor");}//代码编号1.3:赋值给processorthis.processor=processor;this.createdProcessor=createdProcessor;try{//Initializetheselector//代码编号1.4：初始化Selectorinit(s

6、electorProvider);//Theselectorisnowready,wecanswitchthe//flagtotruesothatincomingconnectioncanbeacceptedselectable=true;}catch(RuntimeExceptione){throwe;}catch(Exceptione){thrownewRuntimeIoException("Failedtoinitialize.",e);}finally{if(!selectable){try{destroy(

7、);}catch(Exceptione){ExceptionMonitor.getInstance().exceptionCaught(e);}}}}注释：1.代码编码1.3：赋值给AbstractPollingIoAcceptor的processor,其实际类型为SimpleIoProcessorPool那么接下来继续看代码编号1.4@Overrideprotectedvoidinit(SelectorProviderselectorProvider)throwsException{this.selectorPro

8、vider=selectorProvider;if(selectorProvider==null){selector=Selector.open();}else{selector=selectorProvider.openSelector();}}这里初始化了selector，该selector用于注册客户端连接的事件那么我们再画一个类图，分别