全局 onException 处理多个 RouteBuilder 类

问题描述

我需要创建 onException，以便在我拥有的整个路由构建器中保持全局性，以免为我创建的每个路由构建器重写同一行.我的异常处理程序的当前范围是特定路由构建器的骆驼上下文.我需要创建路由构建器类 r1 和 r2，以使用相同的 onException().process.

I need to make onException, to be global over the whole route builders I have in order not to rewrite the same line for every route builder I create .The current scope for my exception handler is a camel context for specific route builder . I need to make route builder classes ,r1 and r2, to use the same onException().process.

我使用的当前处理异常:

The current working onException I use :

def configure {

     onException(classOf[CustomException]).process(exceptionProcessor).
       process(doExtraProcess)


    from(address).
            process(doSmth).
            process(doSmthElse)
  }

当我将 onException() 行从 configre 方法移动到类级别时，如下所示:

When I have moved the onException() line from configre method to be on the class level like the following :

  onException(classOf[CustomException]).process(exceptionProcessor).
           process(doExtraProcess)

    def configure {

        from(address).
                process(doSmth).
                process(doSmthElse)
      }

我收到此错误:

引起:org.apache.camel.FailedToCreateRouteException: Failed to在以下位置创建路由 route52:>>> OnException[[class CustomException] ->[进程[空]，进程[空]]] <<<途中:Route[[From[direct:locus]] -> [OnException[[... 因为 ref 必须是指定于:process[null]

Caused by: java.lang.IllegalArgumentException: ref must be specified在:进程[空]

Caused by: java.lang.IllegalArgumentException: ref must be specified on: process[null]

推荐答案

首先，需要通过 configure() 方法调用 onException().接下来，您可以仅使用继承来重用异常处理.只需创建一个父 RouteBuilder 类并将常见的异常处理放在一个方法中.然后让每个子类在它们的 configure() 方法中调用那个通用方法...

First, onException() needs to called by the configure() method. Next, you can just use inheritance to reuse exception handling. Just create a parent RouteBuilder class and put common exception handling in a method. Then have each subclass call that common method in their configure() method...

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