Tomcat8.x 上下文（StandardServer）中命名上下文(NamingContext)的创建

（StandardServer）中命名上下文(NamingContext)的创建

// 命名上下文的创建---------1
		class org.apache.catalina.core.StandardServer{
			
			// 构造函数
			public StandardServer() {
				// “命名资源”
				globalNamingResources = new NamingResourcesImpl();
				globalNamingResources.setContainer(this);
				// 创建“命名上下文”监听器
	            namingContextListener = new NamingContextListener();
	            addLifecycleListener(namingContextListener);
			}
			
			protected void startInternal() throws LifecycleException {
				// 触发监听器
				// org.apache.catalina.core.NamingContextListener.lifecycleEvent(...)
				fireLifecycleEvent(CONFIGURE_START_EVENT, null); // "configure_start" 事件
				
				//  org.apache.catalina.deploy.NamingResourcesImpl
				globalNamingResources.start();
			}
			
		}
		
		// "命名资源"
		class org.apache.catalina.deploy.NamingResourcesImpl{
			 	protected void startInternal() throws LifecycleException {
			        fireLifecycleEvent(CONFIGURE_START_EVENT, null);
			        setState(LifecycleState.STARTING);
			    }
		}


		// "命名上下文"监听器
		class org.apache.catalina.core.NamingContextListener{
			
			 // 事件处理器，创建"命名上下文"
			 public void lifecycleEvent(LifecycleEvent event) {
			        container = event.getLifecycle();
			        
			        namingResources = ((Server) container).getGlobalNamingResources();
			        if (Lifecycle.CONFIGURE_START_EVENT.equals(event.getType())) {
		                Hashtable<String, Object> contextEnv = new Hashtable<>();
		                namingContext = new NamingContext(contextEnv, getName()); // 创建"命名上下文"文----------
		                ContextAccessController.setSecurityToken(getName(), token);
		                ContextAccessController.setSecurityToken(container, token);
		                ContextBindings.bindContext(container, namingContext, token);
	                    createNamingContext(); // 创建“名称上下文”
			        }
			 }
			 
			 // 创建"命名上下文"
			 private void createNamingContext()
				        throws NamingException {
			    	// container === org.apache.catalina.core.StandardServer
			        if (container instanceof Server) { // 走这里
			            compCtx = namingContext; // org.apache.naming.NamingContext
			            envCtx = namingContext;
			        } else {
			            compCtx = namingContext.createSubcontext("comp");
			            envCtx = compCtx.createSubcontext("env");
			        }
			        // Resources
			        ContextResource[] resources = namingResources.findResources();
			        for (i = 0; i < resources.length; i++) {
			            addResource(resources[i]);
			        }
			 }
		}