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			package me.chanjar.weixin.mp.api; | 
		
		
	
		
			
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			import me.chanjar.weixin.common.session.InternalSession; | 
		
		
	
		
			
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			import me.chanjar.weixin.common.session.InternalSessionManager; | 
		
		
	
		
			
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			import me.chanjar.weixin.common.session.StandardSessionManager; | 
		
		
	
		
			
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			import me.chanjar.weixin.common.session.WxSessionManager; | 
		
		
	
		
			
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			import me.chanjar.weixin.common.util.LogExceptionHandler; | 
		
		
	
		
			
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			import me.chanjar.weixin.common.api.WxErrorExceptionHandler; | 
		
		
	
		
			
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			import me.chanjar.weixin.common.api.WxMessageDuplicateChecker; | 
		
		
	
		
			
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			import me.chanjar.weixin.common.api.WxMessageInMemoryDuplicateChecker; | 
		
		
	
		
			
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			import me.chanjar.weixin.mp.bean.WxMpXmlMessage; | 
		
		
	
		
			
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			import me.chanjar.weixin.mp.bean.WxMpXmlOutMessage; | 
		
		
	
		
			
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			import org.slf4j.Logger; | 
		
		
	
		
			
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			import org.slf4j.LoggerFactory; | 
		
		
	
		
			
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			import java.util.ArrayList; | 
		
		
	
		
			
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			import java.util.List; | 
		
		
	
		
			
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			import java.util.concurrent.ExecutionException; | 
		
		
	
		
			
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			import java.util.concurrent.ExecutorService; | 
		
		
	
		
			
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			import java.util.concurrent.Executors; | 
		
		
	
		
			
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			import java.util.concurrent.Future; | 
		
		
	
		
			
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			/** | 
		
		
	
		
			
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			 * <pre> | 
		
		
	
		
			
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			 * 微信消息路由器,通过代码化的配置,把来自微信的消息交给handler处理 | 
		
		
	
		
			
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			 *  | 
		
		
	
		
			
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			 * 说明: | 
		
		
	
		
			
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			 * 1. 配置路由规则时要按照从细到粗的原则,否则可能消息可能会被提前处理 | 
		
		
	
		
			
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			 * 2. 默认情况下消息只会被处理一次,除非使用 {@link WxMpMessageRouterRule#next()} | 
		
		
	
		
			
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			 * 3. 规则的结束必须用{@link WxMpMessageRouterRule#end()}或者{@link WxMpMessageRouterRule#next()},否则不会生效 | 
		
		
	
		
			
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			 *  | 
		
		
	
		
			
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			 * 使用方法: | 
		
		
	
		
			
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			 * WxMpMessageRouter router = new WxMpMessageRouter(); | 
		
		
	
		
			
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			 * router | 
		
		
	
		
			
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			 *   .rule() | 
		
		
	
		
			
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			 *       .msgType("MSG_TYPE").event("EVENT").eventKey("EVENT_KEY").content("CONTENT") | 
		
		
	
		
			
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			 *       .interceptor(interceptor, ...).handler(handler, ...) | 
		
		
	
		
			
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			 *   .end() | 
		
		
	
		
			
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			 *   .rule() | 
		
		
	
		
			
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			 *       // 另外一个匹配规则 | 
		
		
	
		
			
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			 *   .end() | 
		
		
	
		
			
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			 * ; | 
		
		
	
		
			
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			 *  | 
		
		
	
		
			
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			 * // 将WxXmlMessage交给消息路由器 | 
		
		
	
		
			
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			 * router.route(message); | 
		
		
	
		
			
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			 *  | 
		
		
	
		
			
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			 * </pre> | 
		
		
	
		
			
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			 * @author Daniel Qian | 
		
		
	
		
			
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			 * | 
		
		
	
		
			
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			 */ | 
		
		
	
		
			
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			public class WxMpMessageRouter { | 
		
		
	
		
			
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			  protected final Logger log = LoggerFactory.getLogger(WxMpMessageRouter.class); | 
		
		
	
		
			
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			  private static final int DEFAULT_THREAD_POOL_SIZE = 100; | 
		
		
	
		
			
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			  private final List<WxMpMessageRouterRule> rules = new ArrayList<WxMpMessageRouterRule>(); | 
		
		
	
		
			
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			  private final WxMpService wxMpService; | 
		
		
	
		
			
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			  private ExecutorService executorService; | 
		
		
	
		
			
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			  private WxMessageDuplicateChecker messageDuplicateChecker; | 
		
		
	
		
			
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			  private WxSessionManager sessionManager; | 
		
		
	
		
			
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			  private WxErrorExceptionHandler exceptionHandler; | 
		
		
	
		
			
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			  public WxMpMessageRouter(WxMpService wxMpService) { | 
		
		
	
		
			
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			    this.wxMpService = wxMpService; | 
		
		
	
		
			
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			    this.executorService = Executors.newFixedThreadPool(DEFAULT_THREAD_POOL_SIZE); | 
		
		
	
		
			
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			    this.messageDuplicateChecker = new WxMessageInMemoryDuplicateChecker(); | 
		
		
	
		
			
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			    this.sessionManager = new StandardSessionManager(); | 
		
		
	
		
			
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			    this.exceptionHandler = new LogExceptionHandler(); | 
		
		
	
		
			
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			  } | 
		
		
	
		
			
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			  /** | 
		
		
	
		
			
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			   * <pre> | 
		
		
	
		
			
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			   * 设置自定义的 {@link ExecutorService} | 
		
		
	
		
			
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			   * 如果不调用该方法,默认使用 Executors.newFixedThreadPool(100) | 
		
		
	
		
			
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			   * </pre> | 
		
		
	
		
			
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			   * @param executorService | 
		
		
	
		
			
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			   */ | 
		
		
	
		
			
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			  public void setExecutorService(ExecutorService executorService) { | 
		
		
	
		
			
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			    this.executorService = executorService; | 
		
		
	
		
			
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			  } | 
		
		
	
		
			
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			  /** | 
		
		
	
		
			
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			   * <pre> | 
		
		
	
		
			
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			   * 设置自定义的 {@link me.chanjar.weixin.common.api.WxMessageDuplicateChecker} | 
		
		
	
		
			
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			   * 如果不调用该方法,默认使用 {@link me.chanjar.weixin.common.api.WxMessageInMemoryDuplicateChecker} | 
		
		
	
		
			
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			   * </pre> | 
		
		
	
		
			
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			   * @param messageDuplicateChecker | 
		
		
	
		
			
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			   */ | 
		
		
	
		
			
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			  public void setMessageDuplicateChecker(WxMessageDuplicateChecker messageDuplicateChecker) { | 
		
		
	
		
			
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			    this.messageDuplicateChecker = messageDuplicateChecker; | 
		
		
	
		
			
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			  } | 
		
		
	
		
			
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			  /** | 
		
		
	
		
			
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			   * <pre> | 
		
		
	
		
			
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			   * 设置自定义的{@link me.chanjar.weixin.common.session.WxSessionManager} | 
		
		
	
		
			
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			   * 如果不调用该方法,默认使用 {@link me.chanjar.weixin.common.session.StandardSessionManager} | 
		
		
	
		
			
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			   * </pre> | 
		
		
	
		
			
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			   * @param sessionManager | 
		
		
	
		
			
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			   */ | 
		
		
	
		
			
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			  public void setSessionManager(WxSessionManager sessionManager) { | 
		
		
	
		
			
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			    this.sessionManager = sessionManager; | 
		
		
	
		
			
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			  } | 
		
		
	
		
			
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			  /** | 
		
		
	
		
			
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			   * <pre> | 
		
		
	
		
			
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			   * 设置自定义的{@link me.chanjar.weixin.common.api.WxErrorExceptionHandler} | 
		
		
	
		
			
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			   * 如果不调用该方法,默认使用 {@link me.chanjar.weixin.common.util.LogExceptionHandler} | 
		
		
	
		
			
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			   * </pre> | 
		
		
	
		
			
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			   * @param exceptionHandler | 
		
		
	
		
			
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			   */ | 
		
		
	
		
			
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			  public void setExceptionHandler(WxErrorExceptionHandler exceptionHandler) { | 
		
		
	
		
			
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			    this.exceptionHandler = exceptionHandler; | 
		
		
	
		
			
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			  } | 
		
		
	
		
			
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			  List<WxMpMessageRouterRule> getRules() { | 
		
		
	
		
			
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			    return this.rules; | 
		
		
	
		
			
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			  } | 
		
		
	
		
			
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			  /** | 
		
		
	
		
			
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			   * 开始一个新的Route规则 | 
		
		
	
		
			
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			   * @return | 
		
		
	
		
			
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			   */ | 
		
		
	
		
			
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			  public WxMpMessageRouterRule rule() { | 
		
		
	
		
			
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			    return new WxMpMessageRouterRule(this); | 
		
		
	
		
			
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			  } | 
		
		
	
		
			
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			  /** | 
		
		
	
		
			
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			   * 处理微信消息 | 
		
		
	
		
			
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			   * @param wxMessage | 
		
		
	
		
			
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			   */ | 
		
		
	
		
			
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			  public WxMpXmlOutMessage route(final WxMpXmlMessage wxMessage) { | 
		
		
	
		
			
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			    if (isDuplicateMessage(wxMessage)) { | 
		
		
	
		
			
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			      // 如果是重复消息,那么就不做处理 | 
		
		
	
		
			
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			      return null; | 
		
		
	
		
			
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			    } | 
		
		
	
		
			
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			    final List<WxMpMessageRouterRule> matchRules = new ArrayList<WxMpMessageRouterRule>(); | 
		
		
	
		
			
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			    // 收集匹配的规则 | 
		
		
	
		
			
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			    for (final WxMpMessageRouterRule rule : rules) { | 
		
		
	
		
			
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			      if (rule.test(wxMessage)) { | 
		
		
	
		
			
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			        matchRules.add(rule); | 
		
		
	
		
			
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			        if(!rule.isReEnter()) { | 
		
		
	
		
			
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			          break; | 
		
		
	
		
			
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			        } | 
		
		
	
		
			
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			      } | 
		
		
	
		
			
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			    } | 
		
		
	
		
			
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			    if (matchRules.size() == 0) { | 
		
		
	
		
			
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			      return null; | 
		
		
	
		
			
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			    } | 
		
		
	
		
			
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			    WxMpXmlOutMessage res = null; | 
		
		
	
		
			
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			    final List<Future> futures = new ArrayList<Future>(); | 
		
		
	
		
			
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			    for (final WxMpMessageRouterRule rule : matchRules) { | 
		
		
	
		
			
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			      // 返回最后一个非异步的rule的执行结果 | 
		
		
	
		
			
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			      if(rule.isAsync()) { | 
		
		
	
		
			
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			        futures.add( | 
		
		
	
		
			
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			            executorService.submit(new Runnable() { | 
		
		
	
		
			
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			              public void run() { | 
		
		
	
		
			
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			                rule.service(wxMessage, wxMpService, sessionManager, exceptionHandler); | 
		
		
	
		
			
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			              } | 
		
		
	
		
			
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			            }) | 
		
		
	
		
			
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			        ); | 
		
		
	
		
			
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			      } else { | 
		
		
	
		
			
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			        res = rule.service(wxMessage, wxMpService, sessionManager, exceptionHandler); | 
		
		
	
		
			
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			        // 在同步操作结束,session访问结束 | 
		
		
	
		
			
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			        log.debug("End session access: async=false, sessionId={}", wxMessage.getFromUserName()); | 
		
		
	
		
			
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			        sessionEndAccess(wxMessage); | 
		
		
	
		
			
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			      } | 
		
		
	
		
			
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			    } | 
		
		
	
		
			
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			    if (futures.size() > 0) { | 
		
		
	
		
			
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			      executorService.submit(new Runnable() { | 
		
		
	
		
			
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			        @Override | 
		
		
	
		
			
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			        public void run() { | 
		
		
	
		
			
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			          for (Future future : futures) { | 
		
		
	
		
			
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			            try { | 
		
		
	
		
			
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			              future.get(); | 
		
		
	
		
			
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			              log.debug("End session access: async=true, sessionId={}", wxMessage.getFromUserName()); | 
		
		
	
		
			
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			              // 异步操作结束,session访问结束 | 
		
		
	
		
			
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			              sessionEndAccess(wxMessage); | 
		
		
	
		
			
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			            } catch (InterruptedException e) { | 
		
		
	
		
			
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			              log.error("Error happened when wait task finish", e); | 
		
		
	
		
			
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			            } catch (ExecutionException e) { | 
		
		
	
		
			
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			              log.error("Error happened when wait task finish", e); | 
		
		
	
		
			
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			            } | 
		
		
	
		
			
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			          } | 
		
		
	
		
			
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			        } | 
		
		
	
		
			
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			      }); | 
		
		
	
		
			
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			    } | 
		
		
	
		
			
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			    return res; | 
		
		
	
		
			
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			  } | 
		
		
	
		
			
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			  protected boolean isDuplicateMessage(WxMpXmlMessage wxMessage) { | 
		
		
	
		
			
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			    String messageId = ""; | 
		
		
	
		
			
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			    if (wxMessage.getMsgId() == null) { | 
		
		
	
		
			
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			      messageId = String.valueOf(wxMessage.getCreateTime()) | 
		
		
	
		
			
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			          + "-" + wxMessage.getFromUserName() | 
		
		
	
		
			
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			          + "-" + String.valueOf(wxMessage.getEventKey() == null ? "" : wxMessage.getEventKey()) | 
		
		
	
		
			
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			          + "-" + String.valueOf(wxMessage.getEvent() == null ? "" : wxMessage.getEvent()) | 
		
		
	
		
			
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			      ; | 
		
		
	
		
			
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			    } else { | 
		
		
	
		
			
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			      messageId = String.valueOf(wxMessage.getMsgId()); | 
		
		
	
		
			
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			    } | 
		
		
	
		
			
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			    if (messageDuplicateChecker.isDuplicate(messageId)) { | 
		
		
	
		
			
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			      return true; | 
		
		
	
		
			
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			    } | 
		
		
	
		
			
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			    return false; | 
		
		
	
		
			
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			  } | 
		
		
	
		
			
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			  /** | 
		
		
	
		
			
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			   * 对session的访问结束 | 
		
		
	
		
			
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			   * @param wxMessage | 
		
		
	
		
			
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			   */ | 
		
		
	
		
			
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			  protected void sessionEndAccess(WxMpXmlMessage wxMessage) { | 
		
		
	
		
			
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			    InternalSession session = ((InternalSessionManager)sessionManager).findSession(wxMessage.getFromUserName()); | 
		
		
	
		
			
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			    if (session != null) { | 
		
		
	
		
			
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			      session.endAccess(); | 
		
		
	
		
			
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			    } | 
		
		
	
		
			
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			  } | 
		
		
	
		
			
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			} | 
		
		
	
		
			
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			package me.chanjar.weixin.mp.api;
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			import me.chanjar.weixin.common.session.InternalSession;
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			import me.chanjar.weixin.common.session.InternalSessionManager;
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			import me.chanjar.weixin.common.session.StandardSessionManager;
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			import me.chanjar.weixin.common.session.WxSessionManager;
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			import me.chanjar.weixin.common.util.LogExceptionHandler;
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			import me.chanjar.weixin.common.api.WxErrorExceptionHandler;
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			import me.chanjar.weixin.common.api.WxMessageDuplicateChecker;
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			import me.chanjar.weixin.common.api.WxMessageInMemoryDuplicateChecker;
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			import me.chanjar.weixin.mp.bean.WxMpXmlMessage;
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			import me.chanjar.weixin.mp.bean.WxMpXmlOutMessage;
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			import org.slf4j.Logger;
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			import org.slf4j.LoggerFactory;
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			import java.util.ArrayList;
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			import java.util.List;
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			import java.util.concurrent.ExecutionException;
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			import java.util.concurrent.ExecutorService;
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			import java.util.concurrent.Executors;
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			import java.util.concurrent.Future;
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			/**
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			 * <pre>
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			 * 微信消息路由器,通过代码化的配置,把来自微信的消息交给handler处理
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			 * 
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			 * 说明:
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			 * 1. 配置路由规则时要按照从细到粗的原则,否则可能消息可能会被提前处理
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			 * 2. 默认情况下消息只会被处理一次,除非使用 {@link WxMpMessageRouterRule#next()}
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			 * 3. 规则的结束必须用{@link WxMpMessageRouterRule#end()}或者{@link WxMpMessageRouterRule#next()},否则不会生效
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			 * 
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			 * 使用方法:
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			 * WxMpMessageRouter router = new WxMpMessageRouter();
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			 * router
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			 *   .rule()
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			 *       .msgType("MSG_TYPE").event("EVENT").eventKey("EVENT_KEY").content("CONTENT")
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			 *       .interceptor(interceptor, ...).handler(handler, ...)
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			 *   .end()
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			 *   .rule()
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			 *       // 另外一个匹配规则
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			 *   .end()
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			 * ;
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			 * 
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			 * // 将WxXmlMessage交给消息路由器
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			 * router.route(message);
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			 * 
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			 * </pre>
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			 * @author Daniel Qian
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			 *
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			 */
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			public class WxMpMessageRouter {
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			  protected final Logger log = LoggerFactory.getLogger(WxMpMessageRouter.class);
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			  private static final int DEFAULT_THREAD_POOL_SIZE = 100;
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			  private final List<WxMpMessageRouterRule> rules = new ArrayList<WxMpMessageRouterRule>();
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			  private final WxMpService wxMpService;
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			  private ExecutorService executorService;
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			  private WxMessageDuplicateChecker messageDuplicateChecker;
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			  private WxSessionManager sessionManager;
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			  private WxErrorExceptionHandler exceptionHandler;
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			  public WxMpMessageRouter(WxMpService wxMpService) {
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			    this.wxMpService = wxMpService;
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			    this.executorService = Executors.newFixedThreadPool(DEFAULT_THREAD_POOL_SIZE);
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			    this.messageDuplicateChecker = new WxMessageInMemoryDuplicateChecker();
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			    this.sessionManager = new StandardSessionManager();
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			    this.exceptionHandler = new LogExceptionHandler();
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			  }
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			  /**
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			   * <pre>
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			   * 设置自定义的 {@link ExecutorService}
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			   * 如果不调用该方法,默认使用 Executors.newFixedThreadPool(100)
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			   * </pre>
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			   * @param executorService
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			   */
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			  public void setExecutorService(ExecutorService executorService) {
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			    this.executorService = executorService;
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			  }
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			  /**
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			   * <pre>
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			   * 设置自定义的 {@link me.chanjar.weixin.common.api.WxMessageDuplicateChecker}
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			   * 如果不调用该方法,默认使用 {@link me.chanjar.weixin.common.api.WxMessageInMemoryDuplicateChecker}
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			   * </pre>
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			   * @param messageDuplicateChecker
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			   */
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			  public void setMessageDuplicateChecker(WxMessageDuplicateChecker messageDuplicateChecker) {
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			    this.messageDuplicateChecker = messageDuplicateChecker;
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			  }
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			  /**
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			   * <pre>
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			   * 设置自定义的{@link me.chanjar.weixin.common.session.WxSessionManager}
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			   * 如果不调用该方法,默认使用 {@link me.chanjar.weixin.common.session.StandardSessionManager}
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			   * </pre>
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			   * @param sessionManager
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			   */
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			  public void setSessionManager(WxSessionManager sessionManager) {
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			    this.sessionManager = sessionManager;
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			  }
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			  /**
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			   * <pre>
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			   * 设置自定义的{@link me.chanjar.weixin.common.api.WxErrorExceptionHandler}
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			   * 如果不调用该方法,默认使用 {@link me.chanjar.weixin.common.util.LogExceptionHandler}
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			   * </pre>
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			   * @param exceptionHandler
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			   */
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			  public void setExceptionHandler(WxErrorExceptionHandler exceptionHandler) {
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			    this.exceptionHandler = exceptionHandler;
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			  }
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			  List<WxMpMessageRouterRule> getRules() {
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			    return this.rules;
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			  }
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			  /**
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			   * 开始一个新的Route规则
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			   * @return
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			   */
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			  public WxMpMessageRouterRule rule() {
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			    return new WxMpMessageRouterRule(this);
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			  }
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			  /**
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			   * 处理微信消息
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			   * @param wxMessage
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			   */
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			  public WxMpXmlOutMessage route(final WxMpXmlMessage wxMessage) {
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			    if (isDuplicateMessage(wxMessage)) {
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			      // 如果是重复消息,那么就不做处理
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			      return null;
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			    }
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			    final List<WxMpMessageRouterRule> matchRules = new ArrayList<WxMpMessageRouterRule>();
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			    // 收集匹配的规则
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			    for (final WxMpMessageRouterRule rule : rules) {
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			      if (rule.test(wxMessage)) {
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			        matchRules.add(rule);
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			        if(!rule.isReEnter()) {
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			          break;
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			        }
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			      }
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			    }
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			    if (matchRules.size() == 0) {
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			      return null;
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			    }
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			    WxMpXmlOutMessage res = null;
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			    final List<Future> futures = new ArrayList<Future>();
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			    for (final WxMpMessageRouterRule rule : matchRules) {
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			      // 返回最后一个非异步的rule的执行结果
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			      if(rule.isAsync()) {
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			        futures.add(
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			            executorService.submit(new Runnable() {
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			              public void run() {
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			                rule.service(wxMessage, wxMpService, sessionManager, exceptionHandler);
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			              }
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			            })
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			        );
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			      } else {
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			        res = rule.service(wxMessage, wxMpService, sessionManager, exceptionHandler);
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			        // 在同步操作结束,session访问结束
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			        log.debug("End session access: async=false, sessionId={}", wxMessage.getFromUserName());
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			        sessionEndAccess(wxMessage);
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			      }
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			    }
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			    if (futures.size() > 0) {
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			      executorService.submit(new Runnable() {
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			        @Override
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			        public void run() {
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			          for (Future future : futures) {
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			            try {
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			              future.get();
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			              log.debug("End session access: async=true, sessionId={}", wxMessage.getFromUserName());
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			              // 异步操作结束,session访问结束
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			              sessionEndAccess(wxMessage);
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			            } catch (InterruptedException e) {
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			              log.error("Error happened when wait task finish", e);
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			            } catch (ExecutionException e) {
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			              log.error("Error happened when wait task finish", e);
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			            }
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			          }
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			        }
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			      });
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			    }
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			    return res;
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			  }
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			  protected boolean isDuplicateMessage(WxMpXmlMessage wxMessage) {
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			    StringBuffer messageId = new StringBuffer();
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			    if (wxMessage.getMsgId() == null) {
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			      messageId.append(wxMessage.getCreateTime())
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			        .append("-").append(wxMessage.getFromUserName())
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			        .append("-").append(wxMessage.getEventKey() == null ? "" : wxMessage.getEventKey())
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			        .append("-").append(wxMessage.getEvent() == null ? "" : wxMessage.getEvent())
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			      ;
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			    } else {
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			      messageId.append(wxMessage.getMsgId());
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			    }
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			    if (messageDuplicateChecker.isDuplicate(messageId.toString())) {
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			      return true;
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			    }
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			    return false;
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			  }
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			  /**
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			   * 对session的访问结束
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			   * @param wxMessage
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			   */
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			  protected void sessionEndAccess(WxMpXmlMessage wxMessage) {
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			    InternalSession session = ((InternalSessionManager)sessionManager).findSession(wxMessage.getFromUserName());
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			    if (session != null) {
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			      session.endAccess();
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			    }
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			  }
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			}
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